unofficial mirror of bug-gnu-emacs@gnu.org 
 help / color / mirror / code / Atom feed
blob 360541ac0b9c057fa2f65c7ecb47d16e756acd3c 971974 bytes (raw)
name: src/xterm.c 	 # note: path name is non-authoritative(*)
    1
    2
    3
    4
    5
    6
    7
    8
    9
   10
   11
   12
   13
   14
   15
   16
   17
   18
   19
   20
   21
   22
   23
   24
   25
   26
   27
   28
   29
   30
   31
   32
   33
   34
   35
   36
   37
   38
   39
   40
   41
   42
   43
   44
   45
   46
   47
   48
   49
   50
   51
   52
   53
   54
   55
   56
   57
   58
   59
   60
   61
   62
   63
   64
   65
   66
   67
   68
   69
   70
   71
   72
   73
   74
   75
   76
   77
   78
   79
   80
   81
   82
   83
   84
   85
   86
   87
   88
   89
   90
   91
   92
   93
   94
   95
   96
   97
   98
   99
  100
  101
  102
  103
  104
  105
  106
  107
  108
  109
  110
  111
  112
  113
  114
  115
  116
  117
  118
  119
  120
  121
  122
  123
  124
  125
  126
  127
  128
  129
  130
  131
  132
  133
  134
  135
  136
  137
  138
  139
  140
  141
  142
  143
  144
  145
  146
  147
  148
  149
  150
  151
  152
  153
  154
  155
  156
  157
  158
  159
  160
  161
  162
  163
  164
  165
  166
  167
  168
  169
  170
  171
  172
  173
  174
  175
  176
  177
  178
  179
  180
  181
  182
  183
  184
  185
  186
  187
  188
  189
  190
  191
  192
  193
  194
  195
  196
  197
  198
  199
  200
  201
  202
  203
  204
  205
  206
  207
  208
  209
  210
  211
  212
  213
  214
  215
  216
  217
  218
  219
  220
  221
  222
  223
  224
  225
  226
  227
  228
  229
  230
  231
  232
  233
  234
  235
  236
  237
  238
  239
  240
  241
  242
  243
  244
  245
  246
  247
  248
  249
  250
  251
  252
  253
  254
  255
  256
  257
  258
  259
  260
  261
  262
  263
  264
  265
  266
  267
  268
  269
  270
  271
  272
  273
  274
  275
  276
  277
  278
  279
  280
  281
  282
  283
  284
  285
  286
  287
  288
  289
  290
  291
  292
  293
  294
  295
  296
  297
  298
  299
  300
  301
  302
  303
  304
  305
  306
  307
  308
  309
  310
  311
  312
  313
  314
  315
  316
  317
  318
  319
  320
  321
  322
  323
  324
  325
  326
  327
  328
  329
  330
  331
  332
  333
  334
  335
  336
  337
  338
  339
  340
  341
  342
  343
  344
  345
  346
  347
  348
  349
  350
  351
  352
  353
  354
  355
  356
  357
  358
  359
  360
  361
  362
  363
  364
  365
  366
  367
  368
  369
  370
  371
  372
  373
  374
  375
  376
  377
  378
  379
  380
  381
  382
  383
  384
  385
  386
  387
  388
  389
  390
  391
  392
  393
  394
  395
  396
  397
  398
  399
  400
  401
  402
  403
  404
  405
  406
  407
  408
  409
  410
  411
  412
  413
  414
  415
  416
  417
  418
  419
  420
  421
  422
  423
  424
  425
  426
  427
  428
  429
  430
  431
  432
  433
  434
  435
  436
  437
  438
  439
  440
  441
  442
  443
  444
  445
  446
  447
  448
  449
  450
  451
  452
  453
  454
  455
  456
  457
  458
  459
  460
  461
  462
  463
  464
  465
  466
  467
  468
  469
  470
  471
  472
  473
  474
  475
  476
  477
  478
  479
  480
  481
  482
  483
  484
  485
  486
  487
  488
  489
  490
  491
  492
  493
  494
  495
  496
  497
  498
  499
  500
  501
  502
  503
  504
  505
  506
  507
  508
  509
  510
  511
  512
  513
  514
  515
  516
  517
  518
  519
  520
  521
  522
  523
  524
  525
  526
  527
  528
  529
  530
  531
  532
  533
  534
  535
  536
  537
  538
  539
  540
  541
  542
  543
  544
  545
  546
  547
  548
  549
  550
  551
  552
  553
  554
  555
  556
  557
  558
  559
  560
  561
  562
  563
  564
  565
  566
  567
  568
  569
  570
  571
  572
  573
  574
  575
  576
  577
  578
  579
  580
  581
  582
  583
  584
  585
  586
  587
  588
  589
  590
  591
  592
  593
  594
  595
  596
  597
  598
  599
  600
  601
  602
  603
  604
  605
  606
  607
  608
  609
  610
  611
  612
  613
  614
  615
  616
  617
  618
  619
  620
  621
  622
  623
  624
  625
  626
  627
  628
  629
  630
  631
  632
  633
  634
  635
  636
  637
  638
  639
  640
  641
  642
  643
  644
  645
  646
  647
  648
  649
  650
  651
  652
  653
  654
  655
  656
  657
  658
  659
  660
  661
  662
  663
  664
  665
  666
  667
  668
  669
  670
  671
  672
  673
  674
  675
  676
  677
  678
  679
  680
  681
  682
  683
  684
  685
  686
  687
  688
  689
  690
  691
  692
  693
  694
  695
  696
  697
  698
  699
  700
  701
  702
  703
  704
  705
  706
  707
  708
  709
  710
  711
  712
  713
  714
  715
  716
  717
  718
  719
  720
  721
  722
  723
  724
  725
  726
  727
  728
  729
  730
  731
  732
  733
  734
  735
  736
  737
  738
  739
  740
  741
  742
  743
  744
  745
  746
  747
  748
  749
  750
  751
  752
  753
  754
  755
  756
  757
  758
  759
  760
  761
  762
  763
  764
  765
  766
  767
  768
  769
  770
  771
  772
  773
  774
  775
  776
  777
  778
  779
  780
  781
  782
  783
  784
  785
  786
  787
  788
  789
  790
  791
  792
  793
  794
  795
  796
  797
  798
  799
  800
  801
  802
  803
  804
  805
  806
  807
  808
  809
  810
  811
  812
  813
  814
  815
  816
  817
  818
  819
  820
  821
  822
  823
  824
  825
  826
  827
  828
  829
  830
  831
  832
  833
  834
  835
  836
  837
  838
  839
  840
  841
  842
  843
  844
  845
  846
  847
  848
  849
  850
  851
  852
  853
  854
  855
  856
  857
  858
  859
  860
  861
  862
  863
  864
  865
  866
  867
  868
  869
  870
  871
  872
  873
  874
  875
  876
  877
  878
  879
  880
  881
  882
  883
  884
  885
  886
  887
  888
  889
  890
  891
  892
  893
  894
  895
  896
  897
  898
  899
  900
  901
  902
  903
  904
  905
  906
  907
  908
  909
  910
  911
  912
  913
  914
  915
  916
  917
  918
  919
  920
  921
  922
  923
  924
  925
  926
  927
  928
  929
  930
  931
  932
  933
  934
  935
  936
  937
  938
  939
  940
  941
  942
  943
  944
  945
  946
  947
  948
  949
  950
  951
  952
  953
  954
  955
  956
  957
  958
  959
  960
  961
  962
  963
  964
  965
  966
  967
  968
  969
  970
  971
  972
  973
  974
  975
  976
  977
  978
  979
  980
  981
  982
  983
  984
  985
  986
  987
  988
  989
  990
  991
  992
  993
  994
  995
  996
  997
  998
  999
 1000
 1001
 1002
 1003
 1004
 1005
 1006
 1007
 1008
 1009
 1010
 1011
 1012
 1013
 1014
 1015
 1016
 1017
 1018
 1019
 1020
 1021
 1022
 1023
 1024
 1025
 1026
 1027
 1028
 1029
 1030
 1031
 1032
 1033
 1034
 1035
 1036
 1037
 1038
 1039
 1040
 1041
 1042
 1043
 1044
 1045
 1046
 1047
 1048
 1049
 1050
 1051
 1052
 1053
 1054
 1055
 1056
 1057
 1058
 1059
 1060
 1061
 1062
 1063
 1064
 1065
 1066
 1067
 1068
 1069
 1070
 1071
 1072
 1073
 1074
 1075
 1076
 1077
 1078
 1079
 1080
 1081
 1082
 1083
 1084
 1085
 1086
 1087
 1088
 1089
 1090
 1091
 1092
 1093
 1094
 1095
 1096
 1097
 1098
 1099
 1100
 1101
 1102
 1103
 1104
 1105
 1106
 1107
 1108
 1109
 1110
 1111
 1112
 1113
 1114
 1115
 1116
 1117
 1118
 1119
 1120
 1121
 1122
 1123
 1124
 1125
 1126
 1127
 1128
 1129
 1130
 1131
 1132
 1133
 1134
 1135
 1136
 1137
 1138
 1139
 1140
 1141
 1142
 1143
 1144
 1145
 1146
 1147
 1148
 1149
 1150
 1151
 1152
 1153
 1154
 1155
 1156
 1157
 1158
 1159
 1160
 1161
 1162
 1163
 1164
 1165
 1166
 1167
 1168
 1169
 1170
 1171
 1172
 1173
 1174
 1175
 1176
 1177
 1178
 1179
 1180
 1181
 1182
 1183
 1184
 1185
 1186
 1187
 1188
 1189
 1190
 1191
 1192
 1193
 1194
 1195
 1196
 1197
 1198
 1199
 1200
 1201
 1202
 1203
 1204
 1205
 1206
 1207
 1208
 1209
 1210
 1211
 1212
 1213
 1214
 1215
 1216
 1217
 1218
 1219
 1220
 1221
 1222
 1223
 1224
 1225
 1226
 1227
 1228
 1229
 1230
 1231
 1232
 1233
 1234
 1235
 1236
 1237
 1238
 1239
 1240
 1241
 1242
 1243
 1244
 1245
 1246
 1247
 1248
 1249
 1250
 1251
 1252
 1253
 1254
 1255
 1256
 1257
 1258
 1259
 1260
 1261
 1262
 1263
 1264
 1265
 1266
 1267
 1268
 1269
 1270
 1271
 1272
 1273
 1274
 1275
 1276
 1277
 1278
 1279
 1280
 1281
 1282
 1283
 1284
 1285
 1286
 1287
 1288
 1289
 1290
 1291
 1292
 1293
 1294
 1295
 1296
 1297
 1298
 1299
 1300
 1301
 1302
 1303
 1304
 1305
 1306
 1307
 1308
 1309
 1310
 1311
 1312
 1313
 1314
 1315
 1316
 1317
 1318
 1319
 1320
 1321
 1322
 1323
 1324
 1325
 1326
 1327
 1328
 1329
 1330
 1331
 1332
 1333
 1334
 1335
 1336
 1337
 1338
 1339
 1340
 1341
 1342
 1343
 1344
 1345
 1346
 1347
 1348
 1349
 1350
 1351
 1352
 1353
 1354
 1355
 1356
 1357
 1358
 1359
 1360
 1361
 1362
 1363
 1364
 1365
 1366
 1367
 1368
 1369
 1370
 1371
 1372
 1373
 1374
 1375
 1376
 1377
 1378
 1379
 1380
 1381
 1382
 1383
 1384
 1385
 1386
 1387
 1388
 1389
 1390
 1391
 1392
 1393
 1394
 1395
 1396
 1397
 1398
 1399
 1400
 1401
 1402
 1403
 1404
 1405
 1406
 1407
 1408
 1409
 1410
 1411
 1412
 1413
 1414
 1415
 1416
 1417
 1418
 1419
 1420
 1421
 1422
 1423
 1424
 1425
 1426
 1427
 1428
 1429
 1430
 1431
 1432
 1433
 1434
 1435
 1436
 1437
 1438
 1439
 1440
 1441
 1442
 1443
 1444
 1445
 1446
 1447
 1448
 1449
 1450
 1451
 1452
 1453
 1454
 1455
 1456
 1457
 1458
 1459
 1460
 1461
 1462
 1463
 1464
 1465
 1466
 1467
 1468
 1469
 1470
 1471
 1472
 1473
 1474
 1475
 1476
 1477
 1478
 1479
 1480
 1481
 1482
 1483
 1484
 1485
 1486
 1487
 1488
 1489
 1490
 1491
 1492
 1493
 1494
 1495
 1496
 1497
 1498
 1499
 1500
 1501
 1502
 1503
 1504
 1505
 1506
 1507
 1508
 1509
 1510
 1511
 1512
 1513
 1514
 1515
 1516
 1517
 1518
 1519
 1520
 1521
 1522
 1523
 1524
 1525
 1526
 1527
 1528
 1529
 1530
 1531
 1532
 1533
 1534
 1535
 1536
 1537
 1538
 1539
 1540
 1541
 1542
 1543
 1544
 1545
 1546
 1547
 1548
 1549
 1550
 1551
 1552
 1553
 1554
 1555
 1556
 1557
 1558
 1559
 1560
 1561
 1562
 1563
 1564
 1565
 1566
 1567
 1568
 1569
 1570
 1571
 1572
 1573
 1574
 1575
 1576
 1577
 1578
 1579
 1580
 1581
 1582
 1583
 1584
 1585
 1586
 1587
 1588
 1589
 1590
 1591
 1592
 1593
 1594
 1595
 1596
 1597
 1598
 1599
 1600
 1601
 1602
 1603
 1604
 1605
 1606
 1607
 1608
 1609
 1610
 1611
 1612
 1613
 1614
 1615
 1616
 1617
 1618
 1619
 1620
 1621
 1622
 1623
 1624
 1625
 1626
 1627
 1628
 1629
 1630
 1631
 1632
 1633
 1634
 1635
 1636
 1637
 1638
 1639
 1640
 1641
 1642
 1643
 1644
 1645
 1646
 1647
 1648
 1649
 1650
 1651
 1652
 1653
 1654
 1655
 1656
 1657
 1658
 1659
 1660
 1661
 1662
 1663
 1664
 1665
 1666
 1667
 1668
 1669
 1670
 1671
 1672
 1673
 1674
 1675
 1676
 1677
 1678
 1679
 1680
 1681
 1682
 1683
 1684
 1685
 1686
 1687
 1688
 1689
 1690
 1691
 1692
 1693
 1694
 1695
 1696
 1697
 1698
 1699
 1700
 1701
 1702
 1703
 1704
 1705
 1706
 1707
 1708
 1709
 1710
 1711
 1712
 1713
 1714
 1715
 1716
 1717
 1718
 1719
 1720
 1721
 1722
 1723
 1724
 1725
 1726
 1727
 1728
 1729
 1730
 1731
 1732
 1733
 1734
 1735
 1736
 1737
 1738
 1739
 1740
 1741
 1742
 1743
 1744
 1745
 1746
 1747
 1748
 1749
 1750
 1751
 1752
 1753
 1754
 1755
 1756
 1757
 1758
 1759
 1760
 1761
 1762
 1763
 1764
 1765
 1766
 1767
 1768
 1769
 1770
 1771
 1772
 1773
 1774
 1775
 1776
 1777
 1778
 1779
 1780
 1781
 1782
 1783
 1784
 1785
 1786
 1787
 1788
 1789
 1790
 1791
 1792
 1793
 1794
 1795
 1796
 1797
 1798
 1799
 1800
 1801
 1802
 1803
 1804
 1805
 1806
 1807
 1808
 1809
 1810
 1811
 1812
 1813
 1814
 1815
 1816
 1817
 1818
 1819
 1820
 1821
 1822
 1823
 1824
 1825
 1826
 1827
 1828
 1829
 1830
 1831
 1832
 1833
 1834
 1835
 1836
 1837
 1838
 1839
 1840
 1841
 1842
 1843
 1844
 1845
 1846
 1847
 1848
 1849
 1850
 1851
 1852
 1853
 1854
 1855
 1856
 1857
 1858
 1859
 1860
 1861
 1862
 1863
 1864
 1865
 1866
 1867
 1868
 1869
 1870
 1871
 1872
 1873
 1874
 1875
 1876
 1877
 1878
 1879
 1880
 1881
 1882
 1883
 1884
 1885
 1886
 1887
 1888
 1889
 1890
 1891
 1892
 1893
 1894
 1895
 1896
 1897
 1898
 1899
 1900
 1901
 1902
 1903
 1904
 1905
 1906
 1907
 1908
 1909
 1910
 1911
 1912
 1913
 1914
 1915
 1916
 1917
 1918
 1919
 1920
 1921
 1922
 1923
 1924
 1925
 1926
 1927
 1928
 1929
 1930
 1931
 1932
 1933
 1934
 1935
 1936
 1937
 1938
 1939
 1940
 1941
 1942
 1943
 1944
 1945
 1946
 1947
 1948
 1949
 1950
 1951
 1952
 1953
 1954
 1955
 1956
 1957
 1958
 1959
 1960
 1961
 1962
 1963
 1964
 1965
 1966
 1967
 1968
 1969
 1970
 1971
 1972
 1973
 1974
 1975
 1976
 1977
 1978
 1979
 1980
 1981
 1982
 1983
 1984
 1985
 1986
 1987
 1988
 1989
 1990
 1991
 1992
 1993
 1994
 1995
 1996
 1997
 1998
 1999
 2000
 2001
 2002
 2003
 2004
 2005
 2006
 2007
 2008
 2009
 2010
 2011
 2012
 2013
 2014
 2015
 2016
 2017
 2018
 2019
 2020
 2021
 2022
 2023
 2024
 2025
 2026
 2027
 2028
 2029
 2030
 2031
 2032
 2033
 2034
 2035
 2036
 2037
 2038
 2039
 2040
 2041
 2042
 2043
 2044
 2045
 2046
 2047
 2048
 2049
 2050
 2051
 2052
 2053
 2054
 2055
 2056
 2057
 2058
 2059
 2060
 2061
 2062
 2063
 2064
 2065
 2066
 2067
 2068
 2069
 2070
 2071
 2072
 2073
 2074
 2075
 2076
 2077
 2078
 2079
 2080
 2081
 2082
 2083
 2084
 2085
 2086
 2087
 2088
 2089
 2090
 2091
 2092
 2093
 2094
 2095
 2096
 2097
 2098
 2099
 2100
 2101
 2102
 2103
 2104
 2105
 2106
 2107
 2108
 2109
 2110
 2111
 2112
 2113
 2114
 2115
 2116
 2117
 2118
 2119
 2120
 2121
 2122
 2123
 2124
 2125
 2126
 2127
 2128
 2129
 2130
 2131
 2132
 2133
 2134
 2135
 2136
 2137
 2138
 2139
 2140
 2141
 2142
 2143
 2144
 2145
 2146
 2147
 2148
 2149
 2150
 2151
 2152
 2153
 2154
 2155
 2156
 2157
 2158
 2159
 2160
 2161
 2162
 2163
 2164
 2165
 2166
 2167
 2168
 2169
 2170
 2171
 2172
 2173
 2174
 2175
 2176
 2177
 2178
 2179
 2180
 2181
 2182
 2183
 2184
 2185
 2186
 2187
 2188
 2189
 2190
 2191
 2192
 2193
 2194
 2195
 2196
 2197
 2198
 2199
 2200
 2201
 2202
 2203
 2204
 2205
 2206
 2207
 2208
 2209
 2210
 2211
 2212
 2213
 2214
 2215
 2216
 2217
 2218
 2219
 2220
 2221
 2222
 2223
 2224
 2225
 2226
 2227
 2228
 2229
 2230
 2231
 2232
 2233
 2234
 2235
 2236
 2237
 2238
 2239
 2240
 2241
 2242
 2243
 2244
 2245
 2246
 2247
 2248
 2249
 2250
 2251
 2252
 2253
 2254
 2255
 2256
 2257
 2258
 2259
 2260
 2261
 2262
 2263
 2264
 2265
 2266
 2267
 2268
 2269
 2270
 2271
 2272
 2273
 2274
 2275
 2276
 2277
 2278
 2279
 2280
 2281
 2282
 2283
 2284
 2285
 2286
 2287
 2288
 2289
 2290
 2291
 2292
 2293
 2294
 2295
 2296
 2297
 2298
 2299
 2300
 2301
 2302
 2303
 2304
 2305
 2306
 2307
 2308
 2309
 2310
 2311
 2312
 2313
 2314
 2315
 2316
 2317
 2318
 2319
 2320
 2321
 2322
 2323
 2324
 2325
 2326
 2327
 2328
 2329
 2330
 2331
 2332
 2333
 2334
 2335
 2336
 2337
 2338
 2339
 2340
 2341
 2342
 2343
 2344
 2345
 2346
 2347
 2348
 2349
 2350
 2351
 2352
 2353
 2354
 2355
 2356
 2357
 2358
 2359
 2360
 2361
 2362
 2363
 2364
 2365
 2366
 2367
 2368
 2369
 2370
 2371
 2372
 2373
 2374
 2375
 2376
 2377
 2378
 2379
 2380
 2381
 2382
 2383
 2384
 2385
 2386
 2387
 2388
 2389
 2390
 2391
 2392
 2393
 2394
 2395
 2396
 2397
 2398
 2399
 2400
 2401
 2402
 2403
 2404
 2405
 2406
 2407
 2408
 2409
 2410
 2411
 2412
 2413
 2414
 2415
 2416
 2417
 2418
 2419
 2420
 2421
 2422
 2423
 2424
 2425
 2426
 2427
 2428
 2429
 2430
 2431
 2432
 2433
 2434
 2435
 2436
 2437
 2438
 2439
 2440
 2441
 2442
 2443
 2444
 2445
 2446
 2447
 2448
 2449
 2450
 2451
 2452
 2453
 2454
 2455
 2456
 2457
 2458
 2459
 2460
 2461
 2462
 2463
 2464
 2465
 2466
 2467
 2468
 2469
 2470
 2471
 2472
 2473
 2474
 2475
 2476
 2477
 2478
 2479
 2480
 2481
 2482
 2483
 2484
 2485
 2486
 2487
 2488
 2489
 2490
 2491
 2492
 2493
 2494
 2495
 2496
 2497
 2498
 2499
 2500
 2501
 2502
 2503
 2504
 2505
 2506
 2507
 2508
 2509
 2510
 2511
 2512
 2513
 2514
 2515
 2516
 2517
 2518
 2519
 2520
 2521
 2522
 2523
 2524
 2525
 2526
 2527
 2528
 2529
 2530
 2531
 2532
 2533
 2534
 2535
 2536
 2537
 2538
 2539
 2540
 2541
 2542
 2543
 2544
 2545
 2546
 2547
 2548
 2549
 2550
 2551
 2552
 2553
 2554
 2555
 2556
 2557
 2558
 2559
 2560
 2561
 2562
 2563
 2564
 2565
 2566
 2567
 2568
 2569
 2570
 2571
 2572
 2573
 2574
 2575
 2576
 2577
 2578
 2579
 2580
 2581
 2582
 2583
 2584
 2585
 2586
 2587
 2588
 2589
 2590
 2591
 2592
 2593
 2594
 2595
 2596
 2597
 2598
 2599
 2600
 2601
 2602
 2603
 2604
 2605
 2606
 2607
 2608
 2609
 2610
 2611
 2612
 2613
 2614
 2615
 2616
 2617
 2618
 2619
 2620
 2621
 2622
 2623
 2624
 2625
 2626
 2627
 2628
 2629
 2630
 2631
 2632
 2633
 2634
 2635
 2636
 2637
 2638
 2639
 2640
 2641
 2642
 2643
 2644
 2645
 2646
 2647
 2648
 2649
 2650
 2651
 2652
 2653
 2654
 2655
 2656
 2657
 2658
 2659
 2660
 2661
 2662
 2663
 2664
 2665
 2666
 2667
 2668
 2669
 2670
 2671
 2672
 2673
 2674
 2675
 2676
 2677
 2678
 2679
 2680
 2681
 2682
 2683
 2684
 2685
 2686
 2687
 2688
 2689
 2690
 2691
 2692
 2693
 2694
 2695
 2696
 2697
 2698
 2699
 2700
 2701
 2702
 2703
 2704
 2705
 2706
 2707
 2708
 2709
 2710
 2711
 2712
 2713
 2714
 2715
 2716
 2717
 2718
 2719
 2720
 2721
 2722
 2723
 2724
 2725
 2726
 2727
 2728
 2729
 2730
 2731
 2732
 2733
 2734
 2735
 2736
 2737
 2738
 2739
 2740
 2741
 2742
 2743
 2744
 2745
 2746
 2747
 2748
 2749
 2750
 2751
 2752
 2753
 2754
 2755
 2756
 2757
 2758
 2759
 2760
 2761
 2762
 2763
 2764
 2765
 2766
 2767
 2768
 2769
 2770
 2771
 2772
 2773
 2774
 2775
 2776
 2777
 2778
 2779
 2780
 2781
 2782
 2783
 2784
 2785
 2786
 2787
 2788
 2789
 2790
 2791
 2792
 2793
 2794
 2795
 2796
 2797
 2798
 2799
 2800
 2801
 2802
 2803
 2804
 2805
 2806
 2807
 2808
 2809
 2810
 2811
 2812
 2813
 2814
 2815
 2816
 2817
 2818
 2819
 2820
 2821
 2822
 2823
 2824
 2825
 2826
 2827
 2828
 2829
 2830
 2831
 2832
 2833
 2834
 2835
 2836
 2837
 2838
 2839
 2840
 2841
 2842
 2843
 2844
 2845
 2846
 2847
 2848
 2849
 2850
 2851
 2852
 2853
 2854
 2855
 2856
 2857
 2858
 2859
 2860
 2861
 2862
 2863
 2864
 2865
 2866
 2867
 2868
 2869
 2870
 2871
 2872
 2873
 2874
 2875
 2876
 2877
 2878
 2879
 2880
 2881
 2882
 2883
 2884
 2885
 2886
 2887
 2888
 2889
 2890
 2891
 2892
 2893
 2894
 2895
 2896
 2897
 2898
 2899
 2900
 2901
 2902
 2903
 2904
 2905
 2906
 2907
 2908
 2909
 2910
 2911
 2912
 2913
 2914
 2915
 2916
 2917
 2918
 2919
 2920
 2921
 2922
 2923
 2924
 2925
 2926
 2927
 2928
 2929
 2930
 2931
 2932
 2933
 2934
 2935
 2936
 2937
 2938
 2939
 2940
 2941
 2942
 2943
 2944
 2945
 2946
 2947
 2948
 2949
 2950
 2951
 2952
 2953
 2954
 2955
 2956
 2957
 2958
 2959
 2960
 2961
 2962
 2963
 2964
 2965
 2966
 2967
 2968
 2969
 2970
 2971
 2972
 2973
 2974
 2975
 2976
 2977
 2978
 2979
 2980
 2981
 2982
 2983
 2984
 2985
 2986
 2987
 2988
 2989
 2990
 2991
 2992
 2993
 2994
 2995
 2996
 2997
 2998
 2999
 3000
 3001
 3002
 3003
 3004
 3005
 3006
 3007
 3008
 3009
 3010
 3011
 3012
 3013
 3014
 3015
 3016
 3017
 3018
 3019
 3020
 3021
 3022
 3023
 3024
 3025
 3026
 3027
 3028
 3029
 3030
 3031
 3032
 3033
 3034
 3035
 3036
 3037
 3038
 3039
 3040
 3041
 3042
 3043
 3044
 3045
 3046
 3047
 3048
 3049
 3050
 3051
 3052
 3053
 3054
 3055
 3056
 3057
 3058
 3059
 3060
 3061
 3062
 3063
 3064
 3065
 3066
 3067
 3068
 3069
 3070
 3071
 3072
 3073
 3074
 3075
 3076
 3077
 3078
 3079
 3080
 3081
 3082
 3083
 3084
 3085
 3086
 3087
 3088
 3089
 3090
 3091
 3092
 3093
 3094
 3095
 3096
 3097
 3098
 3099
 3100
 3101
 3102
 3103
 3104
 3105
 3106
 3107
 3108
 3109
 3110
 3111
 3112
 3113
 3114
 3115
 3116
 3117
 3118
 3119
 3120
 3121
 3122
 3123
 3124
 3125
 3126
 3127
 3128
 3129
 3130
 3131
 3132
 3133
 3134
 3135
 3136
 3137
 3138
 3139
 3140
 3141
 3142
 3143
 3144
 3145
 3146
 3147
 3148
 3149
 3150
 3151
 3152
 3153
 3154
 3155
 3156
 3157
 3158
 3159
 3160
 3161
 3162
 3163
 3164
 3165
 3166
 3167
 3168
 3169
 3170
 3171
 3172
 3173
 3174
 3175
 3176
 3177
 3178
 3179
 3180
 3181
 3182
 3183
 3184
 3185
 3186
 3187
 3188
 3189
 3190
 3191
 3192
 3193
 3194
 3195
 3196
 3197
 3198
 3199
 3200
 3201
 3202
 3203
 3204
 3205
 3206
 3207
 3208
 3209
 3210
 3211
 3212
 3213
 3214
 3215
 3216
 3217
 3218
 3219
 3220
 3221
 3222
 3223
 3224
 3225
 3226
 3227
 3228
 3229
 3230
 3231
 3232
 3233
 3234
 3235
 3236
 3237
 3238
 3239
 3240
 3241
 3242
 3243
 3244
 3245
 3246
 3247
 3248
 3249
 3250
 3251
 3252
 3253
 3254
 3255
 3256
 3257
 3258
 3259
 3260
 3261
 3262
 3263
 3264
 3265
 3266
 3267
 3268
 3269
 3270
 3271
 3272
 3273
 3274
 3275
 3276
 3277
 3278
 3279
 3280
 3281
 3282
 3283
 3284
 3285
 3286
 3287
 3288
 3289
 3290
 3291
 3292
 3293
 3294
 3295
 3296
 3297
 3298
 3299
 3300
 3301
 3302
 3303
 3304
 3305
 3306
 3307
 3308
 3309
 3310
 3311
 3312
 3313
 3314
 3315
 3316
 3317
 3318
 3319
 3320
 3321
 3322
 3323
 3324
 3325
 3326
 3327
 3328
 3329
 3330
 3331
 3332
 3333
 3334
 3335
 3336
 3337
 3338
 3339
 3340
 3341
 3342
 3343
 3344
 3345
 3346
 3347
 3348
 3349
 3350
 3351
 3352
 3353
 3354
 3355
 3356
 3357
 3358
 3359
 3360
 3361
 3362
 3363
 3364
 3365
 3366
 3367
 3368
 3369
 3370
 3371
 3372
 3373
 3374
 3375
 3376
 3377
 3378
 3379
 3380
 3381
 3382
 3383
 3384
 3385
 3386
 3387
 3388
 3389
 3390
 3391
 3392
 3393
 3394
 3395
 3396
 3397
 3398
 3399
 3400
 3401
 3402
 3403
 3404
 3405
 3406
 3407
 3408
 3409
 3410
 3411
 3412
 3413
 3414
 3415
 3416
 3417
 3418
 3419
 3420
 3421
 3422
 3423
 3424
 3425
 3426
 3427
 3428
 3429
 3430
 3431
 3432
 3433
 3434
 3435
 3436
 3437
 3438
 3439
 3440
 3441
 3442
 3443
 3444
 3445
 3446
 3447
 3448
 3449
 3450
 3451
 3452
 3453
 3454
 3455
 3456
 3457
 3458
 3459
 3460
 3461
 3462
 3463
 3464
 3465
 3466
 3467
 3468
 3469
 3470
 3471
 3472
 3473
 3474
 3475
 3476
 3477
 3478
 3479
 3480
 3481
 3482
 3483
 3484
 3485
 3486
 3487
 3488
 3489
 3490
 3491
 3492
 3493
 3494
 3495
 3496
 3497
 3498
 3499
 3500
 3501
 3502
 3503
 3504
 3505
 3506
 3507
 3508
 3509
 3510
 3511
 3512
 3513
 3514
 3515
 3516
 3517
 3518
 3519
 3520
 3521
 3522
 3523
 3524
 3525
 3526
 3527
 3528
 3529
 3530
 3531
 3532
 3533
 3534
 3535
 3536
 3537
 3538
 3539
 3540
 3541
 3542
 3543
 3544
 3545
 3546
 3547
 3548
 3549
 3550
 3551
 3552
 3553
 3554
 3555
 3556
 3557
 3558
 3559
 3560
 3561
 3562
 3563
 3564
 3565
 3566
 3567
 3568
 3569
 3570
 3571
 3572
 3573
 3574
 3575
 3576
 3577
 3578
 3579
 3580
 3581
 3582
 3583
 3584
 3585
 3586
 3587
 3588
 3589
 3590
 3591
 3592
 3593
 3594
 3595
 3596
 3597
 3598
 3599
 3600
 3601
 3602
 3603
 3604
 3605
 3606
 3607
 3608
 3609
 3610
 3611
 3612
 3613
 3614
 3615
 3616
 3617
 3618
 3619
 3620
 3621
 3622
 3623
 3624
 3625
 3626
 3627
 3628
 3629
 3630
 3631
 3632
 3633
 3634
 3635
 3636
 3637
 3638
 3639
 3640
 3641
 3642
 3643
 3644
 3645
 3646
 3647
 3648
 3649
 3650
 3651
 3652
 3653
 3654
 3655
 3656
 3657
 3658
 3659
 3660
 3661
 3662
 3663
 3664
 3665
 3666
 3667
 3668
 3669
 3670
 3671
 3672
 3673
 3674
 3675
 3676
 3677
 3678
 3679
 3680
 3681
 3682
 3683
 3684
 3685
 3686
 3687
 3688
 3689
 3690
 3691
 3692
 3693
 3694
 3695
 3696
 3697
 3698
 3699
 3700
 3701
 3702
 3703
 3704
 3705
 3706
 3707
 3708
 3709
 3710
 3711
 3712
 3713
 3714
 3715
 3716
 3717
 3718
 3719
 3720
 3721
 3722
 3723
 3724
 3725
 3726
 3727
 3728
 3729
 3730
 3731
 3732
 3733
 3734
 3735
 3736
 3737
 3738
 3739
 3740
 3741
 3742
 3743
 3744
 3745
 3746
 3747
 3748
 3749
 3750
 3751
 3752
 3753
 3754
 3755
 3756
 3757
 3758
 3759
 3760
 3761
 3762
 3763
 3764
 3765
 3766
 3767
 3768
 3769
 3770
 3771
 3772
 3773
 3774
 3775
 3776
 3777
 3778
 3779
 3780
 3781
 3782
 3783
 3784
 3785
 3786
 3787
 3788
 3789
 3790
 3791
 3792
 3793
 3794
 3795
 3796
 3797
 3798
 3799
 3800
 3801
 3802
 3803
 3804
 3805
 3806
 3807
 3808
 3809
 3810
 3811
 3812
 3813
 3814
 3815
 3816
 3817
 3818
 3819
 3820
 3821
 3822
 3823
 3824
 3825
 3826
 3827
 3828
 3829
 3830
 3831
 3832
 3833
 3834
 3835
 3836
 3837
 3838
 3839
 3840
 3841
 3842
 3843
 3844
 3845
 3846
 3847
 3848
 3849
 3850
 3851
 3852
 3853
 3854
 3855
 3856
 3857
 3858
 3859
 3860
 3861
 3862
 3863
 3864
 3865
 3866
 3867
 3868
 3869
 3870
 3871
 3872
 3873
 3874
 3875
 3876
 3877
 3878
 3879
 3880
 3881
 3882
 3883
 3884
 3885
 3886
 3887
 3888
 3889
 3890
 3891
 3892
 3893
 3894
 3895
 3896
 3897
 3898
 3899
 3900
 3901
 3902
 3903
 3904
 3905
 3906
 3907
 3908
 3909
 3910
 3911
 3912
 3913
 3914
 3915
 3916
 3917
 3918
 3919
 3920
 3921
 3922
 3923
 3924
 3925
 3926
 3927
 3928
 3929
 3930
 3931
 3932
 3933
 3934
 3935
 3936
 3937
 3938
 3939
 3940
 3941
 3942
 3943
 3944
 3945
 3946
 3947
 3948
 3949
 3950
 3951
 3952
 3953
 3954
 3955
 3956
 3957
 3958
 3959
 3960
 3961
 3962
 3963
 3964
 3965
 3966
 3967
 3968
 3969
 3970
 3971
 3972
 3973
 3974
 3975
 3976
 3977
 3978
 3979
 3980
 3981
 3982
 3983
 3984
 3985
 3986
 3987
 3988
 3989
 3990
 3991
 3992
 3993
 3994
 3995
 3996
 3997
 3998
 3999
 4000
 4001
 4002
 4003
 4004
 4005
 4006
 4007
 4008
 4009
 4010
 4011
 4012
 4013
 4014
 4015
 4016
 4017
 4018
 4019
 4020
 4021
 4022
 4023
 4024
 4025
 4026
 4027
 4028
 4029
 4030
 4031
 4032
 4033
 4034
 4035
 4036
 4037
 4038
 4039
 4040
 4041
 4042
 4043
 4044
 4045
 4046
 4047
 4048
 4049
 4050
 4051
 4052
 4053
 4054
 4055
 4056
 4057
 4058
 4059
 4060
 4061
 4062
 4063
 4064
 4065
 4066
 4067
 4068
 4069
 4070
 4071
 4072
 4073
 4074
 4075
 4076
 4077
 4078
 4079
 4080
 4081
 4082
 4083
 4084
 4085
 4086
 4087
 4088
 4089
 4090
 4091
 4092
 4093
 4094
 4095
 4096
 4097
 4098
 4099
 4100
 4101
 4102
 4103
 4104
 4105
 4106
 4107
 4108
 4109
 4110
 4111
 4112
 4113
 4114
 4115
 4116
 4117
 4118
 4119
 4120
 4121
 4122
 4123
 4124
 4125
 4126
 4127
 4128
 4129
 4130
 4131
 4132
 4133
 4134
 4135
 4136
 4137
 4138
 4139
 4140
 4141
 4142
 4143
 4144
 4145
 4146
 4147
 4148
 4149
 4150
 4151
 4152
 4153
 4154
 4155
 4156
 4157
 4158
 4159
 4160
 4161
 4162
 4163
 4164
 4165
 4166
 4167
 4168
 4169
 4170
 4171
 4172
 4173
 4174
 4175
 4176
 4177
 4178
 4179
 4180
 4181
 4182
 4183
 4184
 4185
 4186
 4187
 4188
 4189
 4190
 4191
 4192
 4193
 4194
 4195
 4196
 4197
 4198
 4199
 4200
 4201
 4202
 4203
 4204
 4205
 4206
 4207
 4208
 4209
 4210
 4211
 4212
 4213
 4214
 4215
 4216
 4217
 4218
 4219
 4220
 4221
 4222
 4223
 4224
 4225
 4226
 4227
 4228
 4229
 4230
 4231
 4232
 4233
 4234
 4235
 4236
 4237
 4238
 4239
 4240
 4241
 4242
 4243
 4244
 4245
 4246
 4247
 4248
 4249
 4250
 4251
 4252
 4253
 4254
 4255
 4256
 4257
 4258
 4259
 4260
 4261
 4262
 4263
 4264
 4265
 4266
 4267
 4268
 4269
 4270
 4271
 4272
 4273
 4274
 4275
 4276
 4277
 4278
 4279
 4280
 4281
 4282
 4283
 4284
 4285
 4286
 4287
 4288
 4289
 4290
 4291
 4292
 4293
 4294
 4295
 4296
 4297
 4298
 4299
 4300
 4301
 4302
 4303
 4304
 4305
 4306
 4307
 4308
 4309
 4310
 4311
 4312
 4313
 4314
 4315
 4316
 4317
 4318
 4319
 4320
 4321
 4322
 4323
 4324
 4325
 4326
 4327
 4328
 4329
 4330
 4331
 4332
 4333
 4334
 4335
 4336
 4337
 4338
 4339
 4340
 4341
 4342
 4343
 4344
 4345
 4346
 4347
 4348
 4349
 4350
 4351
 4352
 4353
 4354
 4355
 4356
 4357
 4358
 4359
 4360
 4361
 4362
 4363
 4364
 4365
 4366
 4367
 4368
 4369
 4370
 4371
 4372
 4373
 4374
 4375
 4376
 4377
 4378
 4379
 4380
 4381
 4382
 4383
 4384
 4385
 4386
 4387
 4388
 4389
 4390
 4391
 4392
 4393
 4394
 4395
 4396
 4397
 4398
 4399
 4400
 4401
 4402
 4403
 4404
 4405
 4406
 4407
 4408
 4409
 4410
 4411
 4412
 4413
 4414
 4415
 4416
 4417
 4418
 4419
 4420
 4421
 4422
 4423
 4424
 4425
 4426
 4427
 4428
 4429
 4430
 4431
 4432
 4433
 4434
 4435
 4436
 4437
 4438
 4439
 4440
 4441
 4442
 4443
 4444
 4445
 4446
 4447
 4448
 4449
 4450
 4451
 4452
 4453
 4454
 4455
 4456
 4457
 4458
 4459
 4460
 4461
 4462
 4463
 4464
 4465
 4466
 4467
 4468
 4469
 4470
 4471
 4472
 4473
 4474
 4475
 4476
 4477
 4478
 4479
 4480
 4481
 4482
 4483
 4484
 4485
 4486
 4487
 4488
 4489
 4490
 4491
 4492
 4493
 4494
 4495
 4496
 4497
 4498
 4499
 4500
 4501
 4502
 4503
 4504
 4505
 4506
 4507
 4508
 4509
 4510
 4511
 4512
 4513
 4514
 4515
 4516
 4517
 4518
 4519
 4520
 4521
 4522
 4523
 4524
 4525
 4526
 4527
 4528
 4529
 4530
 4531
 4532
 4533
 4534
 4535
 4536
 4537
 4538
 4539
 4540
 4541
 4542
 4543
 4544
 4545
 4546
 4547
 4548
 4549
 4550
 4551
 4552
 4553
 4554
 4555
 4556
 4557
 4558
 4559
 4560
 4561
 4562
 4563
 4564
 4565
 4566
 4567
 4568
 4569
 4570
 4571
 4572
 4573
 4574
 4575
 4576
 4577
 4578
 4579
 4580
 4581
 4582
 4583
 4584
 4585
 4586
 4587
 4588
 4589
 4590
 4591
 4592
 4593
 4594
 4595
 4596
 4597
 4598
 4599
 4600
 4601
 4602
 4603
 4604
 4605
 4606
 4607
 4608
 4609
 4610
 4611
 4612
 4613
 4614
 4615
 4616
 4617
 4618
 4619
 4620
 4621
 4622
 4623
 4624
 4625
 4626
 4627
 4628
 4629
 4630
 4631
 4632
 4633
 4634
 4635
 4636
 4637
 4638
 4639
 4640
 4641
 4642
 4643
 4644
 4645
 4646
 4647
 4648
 4649
 4650
 4651
 4652
 4653
 4654
 4655
 4656
 4657
 4658
 4659
 4660
 4661
 4662
 4663
 4664
 4665
 4666
 4667
 4668
 4669
 4670
 4671
 4672
 4673
 4674
 4675
 4676
 4677
 4678
 4679
 4680
 4681
 4682
 4683
 4684
 4685
 4686
 4687
 4688
 4689
 4690
 4691
 4692
 4693
 4694
 4695
 4696
 4697
 4698
 4699
 4700
 4701
 4702
 4703
 4704
 4705
 4706
 4707
 4708
 4709
 4710
 4711
 4712
 4713
 4714
 4715
 4716
 4717
 4718
 4719
 4720
 4721
 4722
 4723
 4724
 4725
 4726
 4727
 4728
 4729
 4730
 4731
 4732
 4733
 4734
 4735
 4736
 4737
 4738
 4739
 4740
 4741
 4742
 4743
 4744
 4745
 4746
 4747
 4748
 4749
 4750
 4751
 4752
 4753
 4754
 4755
 4756
 4757
 4758
 4759
 4760
 4761
 4762
 4763
 4764
 4765
 4766
 4767
 4768
 4769
 4770
 4771
 4772
 4773
 4774
 4775
 4776
 4777
 4778
 4779
 4780
 4781
 4782
 4783
 4784
 4785
 4786
 4787
 4788
 4789
 4790
 4791
 4792
 4793
 4794
 4795
 4796
 4797
 4798
 4799
 4800
 4801
 4802
 4803
 4804
 4805
 4806
 4807
 4808
 4809
 4810
 4811
 4812
 4813
 4814
 4815
 4816
 4817
 4818
 4819
 4820
 4821
 4822
 4823
 4824
 4825
 4826
 4827
 4828
 4829
 4830
 4831
 4832
 4833
 4834
 4835
 4836
 4837
 4838
 4839
 4840
 4841
 4842
 4843
 4844
 4845
 4846
 4847
 4848
 4849
 4850
 4851
 4852
 4853
 4854
 4855
 4856
 4857
 4858
 4859
 4860
 4861
 4862
 4863
 4864
 4865
 4866
 4867
 4868
 4869
 4870
 4871
 4872
 4873
 4874
 4875
 4876
 4877
 4878
 4879
 4880
 4881
 4882
 4883
 4884
 4885
 4886
 4887
 4888
 4889
 4890
 4891
 4892
 4893
 4894
 4895
 4896
 4897
 4898
 4899
 4900
 4901
 4902
 4903
 4904
 4905
 4906
 4907
 4908
 4909
 4910
 4911
 4912
 4913
 4914
 4915
 4916
 4917
 4918
 4919
 4920
 4921
 4922
 4923
 4924
 4925
 4926
 4927
 4928
 4929
 4930
 4931
 4932
 4933
 4934
 4935
 4936
 4937
 4938
 4939
 4940
 4941
 4942
 4943
 4944
 4945
 4946
 4947
 4948
 4949
 4950
 4951
 4952
 4953
 4954
 4955
 4956
 4957
 4958
 4959
 4960
 4961
 4962
 4963
 4964
 4965
 4966
 4967
 4968
 4969
 4970
 4971
 4972
 4973
 4974
 4975
 4976
 4977
 4978
 4979
 4980
 4981
 4982
 4983
 4984
 4985
 4986
 4987
 4988
 4989
 4990
 4991
 4992
 4993
 4994
 4995
 4996
 4997
 4998
 4999
 5000
 5001
 5002
 5003
 5004
 5005
 5006
 5007
 5008
 5009
 5010
 5011
 5012
 5013
 5014
 5015
 5016
 5017
 5018
 5019
 5020
 5021
 5022
 5023
 5024
 5025
 5026
 5027
 5028
 5029
 5030
 5031
 5032
 5033
 5034
 5035
 5036
 5037
 5038
 5039
 5040
 5041
 5042
 5043
 5044
 5045
 5046
 5047
 5048
 5049
 5050
 5051
 5052
 5053
 5054
 5055
 5056
 5057
 5058
 5059
 5060
 5061
 5062
 5063
 5064
 5065
 5066
 5067
 5068
 5069
 5070
 5071
 5072
 5073
 5074
 5075
 5076
 5077
 5078
 5079
 5080
 5081
 5082
 5083
 5084
 5085
 5086
 5087
 5088
 5089
 5090
 5091
 5092
 5093
 5094
 5095
 5096
 5097
 5098
 5099
 5100
 5101
 5102
 5103
 5104
 5105
 5106
 5107
 5108
 5109
 5110
 5111
 5112
 5113
 5114
 5115
 5116
 5117
 5118
 5119
 5120
 5121
 5122
 5123
 5124
 5125
 5126
 5127
 5128
 5129
 5130
 5131
 5132
 5133
 5134
 5135
 5136
 5137
 5138
 5139
 5140
 5141
 5142
 5143
 5144
 5145
 5146
 5147
 5148
 5149
 5150
 5151
 5152
 5153
 5154
 5155
 5156
 5157
 5158
 5159
 5160
 5161
 5162
 5163
 5164
 5165
 5166
 5167
 5168
 5169
 5170
 5171
 5172
 5173
 5174
 5175
 5176
 5177
 5178
 5179
 5180
 5181
 5182
 5183
 5184
 5185
 5186
 5187
 5188
 5189
 5190
 5191
 5192
 5193
 5194
 5195
 5196
 5197
 5198
 5199
 5200
 5201
 5202
 5203
 5204
 5205
 5206
 5207
 5208
 5209
 5210
 5211
 5212
 5213
 5214
 5215
 5216
 5217
 5218
 5219
 5220
 5221
 5222
 5223
 5224
 5225
 5226
 5227
 5228
 5229
 5230
 5231
 5232
 5233
 5234
 5235
 5236
 5237
 5238
 5239
 5240
 5241
 5242
 5243
 5244
 5245
 5246
 5247
 5248
 5249
 5250
 5251
 5252
 5253
 5254
 5255
 5256
 5257
 5258
 5259
 5260
 5261
 5262
 5263
 5264
 5265
 5266
 5267
 5268
 5269
 5270
 5271
 5272
 5273
 5274
 5275
 5276
 5277
 5278
 5279
 5280
 5281
 5282
 5283
 5284
 5285
 5286
 5287
 5288
 5289
 5290
 5291
 5292
 5293
 5294
 5295
 5296
 5297
 5298
 5299
 5300
 5301
 5302
 5303
 5304
 5305
 5306
 5307
 5308
 5309
 5310
 5311
 5312
 5313
 5314
 5315
 5316
 5317
 5318
 5319
 5320
 5321
 5322
 5323
 5324
 5325
 5326
 5327
 5328
 5329
 5330
 5331
 5332
 5333
 5334
 5335
 5336
 5337
 5338
 5339
 5340
 5341
 5342
 5343
 5344
 5345
 5346
 5347
 5348
 5349
 5350
 5351
 5352
 5353
 5354
 5355
 5356
 5357
 5358
 5359
 5360
 5361
 5362
 5363
 5364
 5365
 5366
 5367
 5368
 5369
 5370
 5371
 5372
 5373
 5374
 5375
 5376
 5377
 5378
 5379
 5380
 5381
 5382
 5383
 5384
 5385
 5386
 5387
 5388
 5389
 5390
 5391
 5392
 5393
 5394
 5395
 5396
 5397
 5398
 5399
 5400
 5401
 5402
 5403
 5404
 5405
 5406
 5407
 5408
 5409
 5410
 5411
 5412
 5413
 5414
 5415
 5416
 5417
 5418
 5419
 5420
 5421
 5422
 5423
 5424
 5425
 5426
 5427
 5428
 5429
 5430
 5431
 5432
 5433
 5434
 5435
 5436
 5437
 5438
 5439
 5440
 5441
 5442
 5443
 5444
 5445
 5446
 5447
 5448
 5449
 5450
 5451
 5452
 5453
 5454
 5455
 5456
 5457
 5458
 5459
 5460
 5461
 5462
 5463
 5464
 5465
 5466
 5467
 5468
 5469
 5470
 5471
 5472
 5473
 5474
 5475
 5476
 5477
 5478
 5479
 5480
 5481
 5482
 5483
 5484
 5485
 5486
 5487
 5488
 5489
 5490
 5491
 5492
 5493
 5494
 5495
 5496
 5497
 5498
 5499
 5500
 5501
 5502
 5503
 5504
 5505
 5506
 5507
 5508
 5509
 5510
 5511
 5512
 5513
 5514
 5515
 5516
 5517
 5518
 5519
 5520
 5521
 5522
 5523
 5524
 5525
 5526
 5527
 5528
 5529
 5530
 5531
 5532
 5533
 5534
 5535
 5536
 5537
 5538
 5539
 5540
 5541
 5542
 5543
 5544
 5545
 5546
 5547
 5548
 5549
 5550
 5551
 5552
 5553
 5554
 5555
 5556
 5557
 5558
 5559
 5560
 5561
 5562
 5563
 5564
 5565
 5566
 5567
 5568
 5569
 5570
 5571
 5572
 5573
 5574
 5575
 5576
 5577
 5578
 5579
 5580
 5581
 5582
 5583
 5584
 5585
 5586
 5587
 5588
 5589
 5590
 5591
 5592
 5593
 5594
 5595
 5596
 5597
 5598
 5599
 5600
 5601
 5602
 5603
 5604
 5605
 5606
 5607
 5608
 5609
 5610
 5611
 5612
 5613
 5614
 5615
 5616
 5617
 5618
 5619
 5620
 5621
 5622
 5623
 5624
 5625
 5626
 5627
 5628
 5629
 5630
 5631
 5632
 5633
 5634
 5635
 5636
 5637
 5638
 5639
 5640
 5641
 5642
 5643
 5644
 5645
 5646
 5647
 5648
 5649
 5650
 5651
 5652
 5653
 5654
 5655
 5656
 5657
 5658
 5659
 5660
 5661
 5662
 5663
 5664
 5665
 5666
 5667
 5668
 5669
 5670
 5671
 5672
 5673
 5674
 5675
 5676
 5677
 5678
 5679
 5680
 5681
 5682
 5683
 5684
 5685
 5686
 5687
 5688
 5689
 5690
 5691
 5692
 5693
 5694
 5695
 5696
 5697
 5698
 5699
 5700
 5701
 5702
 5703
 5704
 5705
 5706
 5707
 5708
 5709
 5710
 5711
 5712
 5713
 5714
 5715
 5716
 5717
 5718
 5719
 5720
 5721
 5722
 5723
 5724
 5725
 5726
 5727
 5728
 5729
 5730
 5731
 5732
 5733
 5734
 5735
 5736
 5737
 5738
 5739
 5740
 5741
 5742
 5743
 5744
 5745
 5746
 5747
 5748
 5749
 5750
 5751
 5752
 5753
 5754
 5755
 5756
 5757
 5758
 5759
 5760
 5761
 5762
 5763
 5764
 5765
 5766
 5767
 5768
 5769
 5770
 5771
 5772
 5773
 5774
 5775
 5776
 5777
 5778
 5779
 5780
 5781
 5782
 5783
 5784
 5785
 5786
 5787
 5788
 5789
 5790
 5791
 5792
 5793
 5794
 5795
 5796
 5797
 5798
 5799
 5800
 5801
 5802
 5803
 5804
 5805
 5806
 5807
 5808
 5809
 5810
 5811
 5812
 5813
 5814
 5815
 5816
 5817
 5818
 5819
 5820
 5821
 5822
 5823
 5824
 5825
 5826
 5827
 5828
 5829
 5830
 5831
 5832
 5833
 5834
 5835
 5836
 5837
 5838
 5839
 5840
 5841
 5842
 5843
 5844
 5845
 5846
 5847
 5848
 5849
 5850
 5851
 5852
 5853
 5854
 5855
 5856
 5857
 5858
 5859
 5860
 5861
 5862
 5863
 5864
 5865
 5866
 5867
 5868
 5869
 5870
 5871
 5872
 5873
 5874
 5875
 5876
 5877
 5878
 5879
 5880
 5881
 5882
 5883
 5884
 5885
 5886
 5887
 5888
 5889
 5890
 5891
 5892
 5893
 5894
 5895
 5896
 5897
 5898
 5899
 5900
 5901
 5902
 5903
 5904
 5905
 5906
 5907
 5908
 5909
 5910
 5911
 5912
 5913
 5914
 5915
 5916
 5917
 5918
 5919
 5920
 5921
 5922
 5923
 5924
 5925
 5926
 5927
 5928
 5929
 5930
 5931
 5932
 5933
 5934
 5935
 5936
 5937
 5938
 5939
 5940
 5941
 5942
 5943
 5944
 5945
 5946
 5947
 5948
 5949
 5950
 5951
 5952
 5953
 5954
 5955
 5956
 5957
 5958
 5959
 5960
 5961
 5962
 5963
 5964
 5965
 5966
 5967
 5968
 5969
 5970
 5971
 5972
 5973
 5974
 5975
 5976
 5977
 5978
 5979
 5980
 5981
 5982
 5983
 5984
 5985
 5986
 5987
 5988
 5989
 5990
 5991
 5992
 5993
 5994
 5995
 5996
 5997
 5998
 5999
 6000
 6001
 6002
 6003
 6004
 6005
 6006
 6007
 6008
 6009
 6010
 6011
 6012
 6013
 6014
 6015
 6016
 6017
 6018
 6019
 6020
 6021
 6022
 6023
 6024
 6025
 6026
 6027
 6028
 6029
 6030
 6031
 6032
 6033
 6034
 6035
 6036
 6037
 6038
 6039
 6040
 6041
 6042
 6043
 6044
 6045
 6046
 6047
 6048
 6049
 6050
 6051
 6052
 6053
 6054
 6055
 6056
 6057
 6058
 6059
 6060
 6061
 6062
 6063
 6064
 6065
 6066
 6067
 6068
 6069
 6070
 6071
 6072
 6073
 6074
 6075
 6076
 6077
 6078
 6079
 6080
 6081
 6082
 6083
 6084
 6085
 6086
 6087
 6088
 6089
 6090
 6091
 6092
 6093
 6094
 6095
 6096
 6097
 6098
 6099
 6100
 6101
 6102
 6103
 6104
 6105
 6106
 6107
 6108
 6109
 6110
 6111
 6112
 6113
 6114
 6115
 6116
 6117
 6118
 6119
 6120
 6121
 6122
 6123
 6124
 6125
 6126
 6127
 6128
 6129
 6130
 6131
 6132
 6133
 6134
 6135
 6136
 6137
 6138
 6139
 6140
 6141
 6142
 6143
 6144
 6145
 6146
 6147
 6148
 6149
 6150
 6151
 6152
 6153
 6154
 6155
 6156
 6157
 6158
 6159
 6160
 6161
 6162
 6163
 6164
 6165
 6166
 6167
 6168
 6169
 6170
 6171
 6172
 6173
 6174
 6175
 6176
 6177
 6178
 6179
 6180
 6181
 6182
 6183
 6184
 6185
 6186
 6187
 6188
 6189
 6190
 6191
 6192
 6193
 6194
 6195
 6196
 6197
 6198
 6199
 6200
 6201
 6202
 6203
 6204
 6205
 6206
 6207
 6208
 6209
 6210
 6211
 6212
 6213
 6214
 6215
 6216
 6217
 6218
 6219
 6220
 6221
 6222
 6223
 6224
 6225
 6226
 6227
 6228
 6229
 6230
 6231
 6232
 6233
 6234
 6235
 6236
 6237
 6238
 6239
 6240
 6241
 6242
 6243
 6244
 6245
 6246
 6247
 6248
 6249
 6250
 6251
 6252
 6253
 6254
 6255
 6256
 6257
 6258
 6259
 6260
 6261
 6262
 6263
 6264
 6265
 6266
 6267
 6268
 6269
 6270
 6271
 6272
 6273
 6274
 6275
 6276
 6277
 6278
 6279
 6280
 6281
 6282
 6283
 6284
 6285
 6286
 6287
 6288
 6289
 6290
 6291
 6292
 6293
 6294
 6295
 6296
 6297
 6298
 6299
 6300
 6301
 6302
 6303
 6304
 6305
 6306
 6307
 6308
 6309
 6310
 6311
 6312
 6313
 6314
 6315
 6316
 6317
 6318
 6319
 6320
 6321
 6322
 6323
 6324
 6325
 6326
 6327
 6328
 6329
 6330
 6331
 6332
 6333
 6334
 6335
 6336
 6337
 6338
 6339
 6340
 6341
 6342
 6343
 6344
 6345
 6346
 6347
 6348
 6349
 6350
 6351
 6352
 6353
 6354
 6355
 6356
 6357
 6358
 6359
 6360
 6361
 6362
 6363
 6364
 6365
 6366
 6367
 6368
 6369
 6370
 6371
 6372
 6373
 6374
 6375
 6376
 6377
 6378
 6379
 6380
 6381
 6382
 6383
 6384
 6385
 6386
 6387
 6388
 6389
 6390
 6391
 6392
 6393
 6394
 6395
 6396
 6397
 6398
 6399
 6400
 6401
 6402
 6403
 6404
 6405
 6406
 6407
 6408
 6409
 6410
 6411
 6412
 6413
 6414
 6415
 6416
 6417
 6418
 6419
 6420
 6421
 6422
 6423
 6424
 6425
 6426
 6427
 6428
 6429
 6430
 6431
 6432
 6433
 6434
 6435
 6436
 6437
 6438
 6439
 6440
 6441
 6442
 6443
 6444
 6445
 6446
 6447
 6448
 6449
 6450
 6451
 6452
 6453
 6454
 6455
 6456
 6457
 6458
 6459
 6460
 6461
 6462
 6463
 6464
 6465
 6466
 6467
 6468
 6469
 6470
 6471
 6472
 6473
 6474
 6475
 6476
 6477
 6478
 6479
 6480
 6481
 6482
 6483
 6484
 6485
 6486
 6487
 6488
 6489
 6490
 6491
 6492
 6493
 6494
 6495
 6496
 6497
 6498
 6499
 6500
 6501
 6502
 6503
 6504
 6505
 6506
 6507
 6508
 6509
 6510
 6511
 6512
 6513
 6514
 6515
 6516
 6517
 6518
 6519
 6520
 6521
 6522
 6523
 6524
 6525
 6526
 6527
 6528
 6529
 6530
 6531
 6532
 6533
 6534
 6535
 6536
 6537
 6538
 6539
 6540
 6541
 6542
 6543
 6544
 6545
 6546
 6547
 6548
 6549
 6550
 6551
 6552
 6553
 6554
 6555
 6556
 6557
 6558
 6559
 6560
 6561
 6562
 6563
 6564
 6565
 6566
 6567
 6568
 6569
 6570
 6571
 6572
 6573
 6574
 6575
 6576
 6577
 6578
 6579
 6580
 6581
 6582
 6583
 6584
 6585
 6586
 6587
 6588
 6589
 6590
 6591
 6592
 6593
 6594
 6595
 6596
 6597
 6598
 6599
 6600
 6601
 6602
 6603
 6604
 6605
 6606
 6607
 6608
 6609
 6610
 6611
 6612
 6613
 6614
 6615
 6616
 6617
 6618
 6619
 6620
 6621
 6622
 6623
 6624
 6625
 6626
 6627
 6628
 6629
 6630
 6631
 6632
 6633
 6634
 6635
 6636
 6637
 6638
 6639
 6640
 6641
 6642
 6643
 6644
 6645
 6646
 6647
 6648
 6649
 6650
 6651
 6652
 6653
 6654
 6655
 6656
 6657
 6658
 6659
 6660
 6661
 6662
 6663
 6664
 6665
 6666
 6667
 6668
 6669
 6670
 6671
 6672
 6673
 6674
 6675
 6676
 6677
 6678
 6679
 6680
 6681
 6682
 6683
 6684
 6685
 6686
 6687
 6688
 6689
 6690
 6691
 6692
 6693
 6694
 6695
 6696
 6697
 6698
 6699
 6700
 6701
 6702
 6703
 6704
 6705
 6706
 6707
 6708
 6709
 6710
 6711
 6712
 6713
 6714
 6715
 6716
 6717
 6718
 6719
 6720
 6721
 6722
 6723
 6724
 6725
 6726
 6727
 6728
 6729
 6730
 6731
 6732
 6733
 6734
 6735
 6736
 6737
 6738
 6739
 6740
 6741
 6742
 6743
 6744
 6745
 6746
 6747
 6748
 6749
 6750
 6751
 6752
 6753
 6754
 6755
 6756
 6757
 6758
 6759
 6760
 6761
 6762
 6763
 6764
 6765
 6766
 6767
 6768
 6769
 6770
 6771
 6772
 6773
 6774
 6775
 6776
 6777
 6778
 6779
 6780
 6781
 6782
 6783
 6784
 6785
 6786
 6787
 6788
 6789
 6790
 6791
 6792
 6793
 6794
 6795
 6796
 6797
 6798
 6799
 6800
 6801
 6802
 6803
 6804
 6805
 6806
 6807
 6808
 6809
 6810
 6811
 6812
 6813
 6814
 6815
 6816
 6817
 6818
 6819
 6820
 6821
 6822
 6823
 6824
 6825
 6826
 6827
 6828
 6829
 6830
 6831
 6832
 6833
 6834
 6835
 6836
 6837
 6838
 6839
 6840
 6841
 6842
 6843
 6844
 6845
 6846
 6847
 6848
 6849
 6850
 6851
 6852
 6853
 6854
 6855
 6856
 6857
 6858
 6859
 6860
 6861
 6862
 6863
 6864
 6865
 6866
 6867
 6868
 6869
 6870
 6871
 6872
 6873
 6874
 6875
 6876
 6877
 6878
 6879
 6880
 6881
 6882
 6883
 6884
 6885
 6886
 6887
 6888
 6889
 6890
 6891
 6892
 6893
 6894
 6895
 6896
 6897
 6898
 6899
 6900
 6901
 6902
 6903
 6904
 6905
 6906
 6907
 6908
 6909
 6910
 6911
 6912
 6913
 6914
 6915
 6916
 6917
 6918
 6919
 6920
 6921
 6922
 6923
 6924
 6925
 6926
 6927
 6928
 6929
 6930
 6931
 6932
 6933
 6934
 6935
 6936
 6937
 6938
 6939
 6940
 6941
 6942
 6943
 6944
 6945
 6946
 6947
 6948
 6949
 6950
 6951
 6952
 6953
 6954
 6955
 6956
 6957
 6958
 6959
 6960
 6961
 6962
 6963
 6964
 6965
 6966
 6967
 6968
 6969
 6970
 6971
 6972
 6973
 6974
 6975
 6976
 6977
 6978
 6979
 6980
 6981
 6982
 6983
 6984
 6985
 6986
 6987
 6988
 6989
 6990
 6991
 6992
 6993
 6994
 6995
 6996
 6997
 6998
 6999
 7000
 7001
 7002
 7003
 7004
 7005
 7006
 7007
 7008
 7009
 7010
 7011
 7012
 7013
 7014
 7015
 7016
 7017
 7018
 7019
 7020
 7021
 7022
 7023
 7024
 7025
 7026
 7027
 7028
 7029
 7030
 7031
 7032
 7033
 7034
 7035
 7036
 7037
 7038
 7039
 7040
 7041
 7042
 7043
 7044
 7045
 7046
 7047
 7048
 7049
 7050
 7051
 7052
 7053
 7054
 7055
 7056
 7057
 7058
 7059
 7060
 7061
 7062
 7063
 7064
 7065
 7066
 7067
 7068
 7069
 7070
 7071
 7072
 7073
 7074
 7075
 7076
 7077
 7078
 7079
 7080
 7081
 7082
 7083
 7084
 7085
 7086
 7087
 7088
 7089
 7090
 7091
 7092
 7093
 7094
 7095
 7096
 7097
 7098
 7099
 7100
 7101
 7102
 7103
 7104
 7105
 7106
 7107
 7108
 7109
 7110
 7111
 7112
 7113
 7114
 7115
 7116
 7117
 7118
 7119
 7120
 7121
 7122
 7123
 7124
 7125
 7126
 7127
 7128
 7129
 7130
 7131
 7132
 7133
 7134
 7135
 7136
 7137
 7138
 7139
 7140
 7141
 7142
 7143
 7144
 7145
 7146
 7147
 7148
 7149
 7150
 7151
 7152
 7153
 7154
 7155
 7156
 7157
 7158
 7159
 7160
 7161
 7162
 7163
 7164
 7165
 7166
 7167
 7168
 7169
 7170
 7171
 7172
 7173
 7174
 7175
 7176
 7177
 7178
 7179
 7180
 7181
 7182
 7183
 7184
 7185
 7186
 7187
 7188
 7189
 7190
 7191
 7192
 7193
 7194
 7195
 7196
 7197
 7198
 7199
 7200
 7201
 7202
 7203
 7204
 7205
 7206
 7207
 7208
 7209
 7210
 7211
 7212
 7213
 7214
 7215
 7216
 7217
 7218
 7219
 7220
 7221
 7222
 7223
 7224
 7225
 7226
 7227
 7228
 7229
 7230
 7231
 7232
 7233
 7234
 7235
 7236
 7237
 7238
 7239
 7240
 7241
 7242
 7243
 7244
 7245
 7246
 7247
 7248
 7249
 7250
 7251
 7252
 7253
 7254
 7255
 7256
 7257
 7258
 7259
 7260
 7261
 7262
 7263
 7264
 7265
 7266
 7267
 7268
 7269
 7270
 7271
 7272
 7273
 7274
 7275
 7276
 7277
 7278
 7279
 7280
 7281
 7282
 7283
 7284
 7285
 7286
 7287
 7288
 7289
 7290
 7291
 7292
 7293
 7294
 7295
 7296
 7297
 7298
 7299
 7300
 7301
 7302
 7303
 7304
 7305
 7306
 7307
 7308
 7309
 7310
 7311
 7312
 7313
 7314
 7315
 7316
 7317
 7318
 7319
 7320
 7321
 7322
 7323
 7324
 7325
 7326
 7327
 7328
 7329
 7330
 7331
 7332
 7333
 7334
 7335
 7336
 7337
 7338
 7339
 7340
 7341
 7342
 7343
 7344
 7345
 7346
 7347
 7348
 7349
 7350
 7351
 7352
 7353
 7354
 7355
 7356
 7357
 7358
 7359
 7360
 7361
 7362
 7363
 7364
 7365
 7366
 7367
 7368
 7369
 7370
 7371
 7372
 7373
 7374
 7375
 7376
 7377
 7378
 7379
 7380
 7381
 7382
 7383
 7384
 7385
 7386
 7387
 7388
 7389
 7390
 7391
 7392
 7393
 7394
 7395
 7396
 7397
 7398
 7399
 7400
 7401
 7402
 7403
 7404
 7405
 7406
 7407
 7408
 7409
 7410
 7411
 7412
 7413
 7414
 7415
 7416
 7417
 7418
 7419
 7420
 7421
 7422
 7423
 7424
 7425
 7426
 7427
 7428
 7429
 7430
 7431
 7432
 7433
 7434
 7435
 7436
 7437
 7438
 7439
 7440
 7441
 7442
 7443
 7444
 7445
 7446
 7447
 7448
 7449
 7450
 7451
 7452
 7453
 7454
 7455
 7456
 7457
 7458
 7459
 7460
 7461
 7462
 7463
 7464
 7465
 7466
 7467
 7468
 7469
 7470
 7471
 7472
 7473
 7474
 7475
 7476
 7477
 7478
 7479
 7480
 7481
 7482
 7483
 7484
 7485
 7486
 7487
 7488
 7489
 7490
 7491
 7492
 7493
 7494
 7495
 7496
 7497
 7498
 7499
 7500
 7501
 7502
 7503
 7504
 7505
 7506
 7507
 7508
 7509
 7510
 7511
 7512
 7513
 7514
 7515
 7516
 7517
 7518
 7519
 7520
 7521
 7522
 7523
 7524
 7525
 7526
 7527
 7528
 7529
 7530
 7531
 7532
 7533
 7534
 7535
 7536
 7537
 7538
 7539
 7540
 7541
 7542
 7543
 7544
 7545
 7546
 7547
 7548
 7549
 7550
 7551
 7552
 7553
 7554
 7555
 7556
 7557
 7558
 7559
 7560
 7561
 7562
 7563
 7564
 7565
 7566
 7567
 7568
 7569
 7570
 7571
 7572
 7573
 7574
 7575
 7576
 7577
 7578
 7579
 7580
 7581
 7582
 7583
 7584
 7585
 7586
 7587
 7588
 7589
 7590
 7591
 7592
 7593
 7594
 7595
 7596
 7597
 7598
 7599
 7600
 7601
 7602
 7603
 7604
 7605
 7606
 7607
 7608
 7609
 7610
 7611
 7612
 7613
 7614
 7615
 7616
 7617
 7618
 7619
 7620
 7621
 7622
 7623
 7624
 7625
 7626
 7627
 7628
 7629
 7630
 7631
 7632
 7633
 7634
 7635
 7636
 7637
 7638
 7639
 7640
 7641
 7642
 7643
 7644
 7645
 7646
 7647
 7648
 7649
 7650
 7651
 7652
 7653
 7654
 7655
 7656
 7657
 7658
 7659
 7660
 7661
 7662
 7663
 7664
 7665
 7666
 7667
 7668
 7669
 7670
 7671
 7672
 7673
 7674
 7675
 7676
 7677
 7678
 7679
 7680
 7681
 7682
 7683
 7684
 7685
 7686
 7687
 7688
 7689
 7690
 7691
 7692
 7693
 7694
 7695
 7696
 7697
 7698
 7699
 7700
 7701
 7702
 7703
 7704
 7705
 7706
 7707
 7708
 7709
 7710
 7711
 7712
 7713
 7714
 7715
 7716
 7717
 7718
 7719
 7720
 7721
 7722
 7723
 7724
 7725
 7726
 7727
 7728
 7729
 7730
 7731
 7732
 7733
 7734
 7735
 7736
 7737
 7738
 7739
 7740
 7741
 7742
 7743
 7744
 7745
 7746
 7747
 7748
 7749
 7750
 7751
 7752
 7753
 7754
 7755
 7756
 7757
 7758
 7759
 7760
 7761
 7762
 7763
 7764
 7765
 7766
 7767
 7768
 7769
 7770
 7771
 7772
 7773
 7774
 7775
 7776
 7777
 7778
 7779
 7780
 7781
 7782
 7783
 7784
 7785
 7786
 7787
 7788
 7789
 7790
 7791
 7792
 7793
 7794
 7795
 7796
 7797
 7798
 7799
 7800
 7801
 7802
 7803
 7804
 7805
 7806
 7807
 7808
 7809
 7810
 7811
 7812
 7813
 7814
 7815
 7816
 7817
 7818
 7819
 7820
 7821
 7822
 7823
 7824
 7825
 7826
 7827
 7828
 7829
 7830
 7831
 7832
 7833
 7834
 7835
 7836
 7837
 7838
 7839
 7840
 7841
 7842
 7843
 7844
 7845
 7846
 7847
 7848
 7849
 7850
 7851
 7852
 7853
 7854
 7855
 7856
 7857
 7858
 7859
 7860
 7861
 7862
 7863
 7864
 7865
 7866
 7867
 7868
 7869
 7870
 7871
 7872
 7873
 7874
 7875
 7876
 7877
 7878
 7879
 7880
 7881
 7882
 7883
 7884
 7885
 7886
 7887
 7888
 7889
 7890
 7891
 7892
 7893
 7894
 7895
 7896
 7897
 7898
 7899
 7900
 7901
 7902
 7903
 7904
 7905
 7906
 7907
 7908
 7909
 7910
 7911
 7912
 7913
 7914
 7915
 7916
 7917
 7918
 7919
 7920
 7921
 7922
 7923
 7924
 7925
 7926
 7927
 7928
 7929
 7930
 7931
 7932
 7933
 7934
 7935
 7936
 7937
 7938
 7939
 7940
 7941
 7942
 7943
 7944
 7945
 7946
 7947
 7948
 7949
 7950
 7951
 7952
 7953
 7954
 7955
 7956
 7957
 7958
 7959
 7960
 7961
 7962
 7963
 7964
 7965
 7966
 7967
 7968
 7969
 7970
 7971
 7972
 7973
 7974
 7975
 7976
 7977
 7978
 7979
 7980
 7981
 7982
 7983
 7984
 7985
 7986
 7987
 7988
 7989
 7990
 7991
 7992
 7993
 7994
 7995
 7996
 7997
 7998
 7999
 8000
 8001
 8002
 8003
 8004
 8005
 8006
 8007
 8008
 8009
 8010
 8011
 8012
 8013
 8014
 8015
 8016
 8017
 8018
 8019
 8020
 8021
 8022
 8023
 8024
 8025
 8026
 8027
 8028
 8029
 8030
 8031
 8032
 8033
 8034
 8035
 8036
 8037
 8038
 8039
 8040
 8041
 8042
 8043
 8044
 8045
 8046
 8047
 8048
 8049
 8050
 8051
 8052
 8053
 8054
 8055
 8056
 8057
 8058
 8059
 8060
 8061
 8062
 8063
 8064
 8065
 8066
 8067
 8068
 8069
 8070
 8071
 8072
 8073
 8074
 8075
 8076
 8077
 8078
 8079
 8080
 8081
 8082
 8083
 8084
 8085
 8086
 8087
 8088
 8089
 8090
 8091
 8092
 8093
 8094
 8095
 8096
 8097
 8098
 8099
 8100
 8101
 8102
 8103
 8104
 8105
 8106
 8107
 8108
 8109
 8110
 8111
 8112
 8113
 8114
 8115
 8116
 8117
 8118
 8119
 8120
 8121
 8122
 8123
 8124
 8125
 8126
 8127
 8128
 8129
 8130
 8131
 8132
 8133
 8134
 8135
 8136
 8137
 8138
 8139
 8140
 8141
 8142
 8143
 8144
 8145
 8146
 8147
 8148
 8149
 8150
 8151
 8152
 8153
 8154
 8155
 8156
 8157
 8158
 8159
 8160
 8161
 8162
 8163
 8164
 8165
 8166
 8167
 8168
 8169
 8170
 8171
 8172
 8173
 8174
 8175
 8176
 8177
 8178
 8179
 8180
 8181
 8182
 8183
 8184
 8185
 8186
 8187
 8188
 8189
 8190
 8191
 8192
 8193
 8194
 8195
 8196
 8197
 8198
 8199
 8200
 8201
 8202
 8203
 8204
 8205
 8206
 8207
 8208
 8209
 8210
 8211
 8212
 8213
 8214
 8215
 8216
 8217
 8218
 8219
 8220
 8221
 8222
 8223
 8224
 8225
 8226
 8227
 8228
 8229
 8230
 8231
 8232
 8233
 8234
 8235
 8236
 8237
 8238
 8239
 8240
 8241
 8242
 8243
 8244
 8245
 8246
 8247
 8248
 8249
 8250
 8251
 8252
 8253
 8254
 8255
 8256
 8257
 8258
 8259
 8260
 8261
 8262
 8263
 8264
 8265
 8266
 8267
 8268
 8269
 8270
 8271
 8272
 8273
 8274
 8275
 8276
 8277
 8278
 8279
 8280
 8281
 8282
 8283
 8284
 8285
 8286
 8287
 8288
 8289
 8290
 8291
 8292
 8293
 8294
 8295
 8296
 8297
 8298
 8299
 8300
 8301
 8302
 8303
 8304
 8305
 8306
 8307
 8308
 8309
 8310
 8311
 8312
 8313
 8314
 8315
 8316
 8317
 8318
 8319
 8320
 8321
 8322
 8323
 8324
 8325
 8326
 8327
 8328
 8329
 8330
 8331
 8332
 8333
 8334
 8335
 8336
 8337
 8338
 8339
 8340
 8341
 8342
 8343
 8344
 8345
 8346
 8347
 8348
 8349
 8350
 8351
 8352
 8353
 8354
 8355
 8356
 8357
 8358
 8359
 8360
 8361
 8362
 8363
 8364
 8365
 8366
 8367
 8368
 8369
 8370
 8371
 8372
 8373
 8374
 8375
 8376
 8377
 8378
 8379
 8380
 8381
 8382
 8383
 8384
 8385
 8386
 8387
 8388
 8389
 8390
 8391
 8392
 8393
 8394
 8395
 8396
 8397
 8398
 8399
 8400
 8401
 8402
 8403
 8404
 8405
 8406
 8407
 8408
 8409
 8410
 8411
 8412
 8413
 8414
 8415
 8416
 8417
 8418
 8419
 8420
 8421
 8422
 8423
 8424
 8425
 8426
 8427
 8428
 8429
 8430
 8431
 8432
 8433
 8434
 8435
 8436
 8437
 8438
 8439
 8440
 8441
 8442
 8443
 8444
 8445
 8446
 8447
 8448
 8449
 8450
 8451
 8452
 8453
 8454
 8455
 8456
 8457
 8458
 8459
 8460
 8461
 8462
 8463
 8464
 8465
 8466
 8467
 8468
 8469
 8470
 8471
 8472
 8473
 8474
 8475
 8476
 8477
 8478
 8479
 8480
 8481
 8482
 8483
 8484
 8485
 8486
 8487
 8488
 8489
 8490
 8491
 8492
 8493
 8494
 8495
 8496
 8497
 8498
 8499
 8500
 8501
 8502
 8503
 8504
 8505
 8506
 8507
 8508
 8509
 8510
 8511
 8512
 8513
 8514
 8515
 8516
 8517
 8518
 8519
 8520
 8521
 8522
 8523
 8524
 8525
 8526
 8527
 8528
 8529
 8530
 8531
 8532
 8533
 8534
 8535
 8536
 8537
 8538
 8539
 8540
 8541
 8542
 8543
 8544
 8545
 8546
 8547
 8548
 8549
 8550
 8551
 8552
 8553
 8554
 8555
 8556
 8557
 8558
 8559
 8560
 8561
 8562
 8563
 8564
 8565
 8566
 8567
 8568
 8569
 8570
 8571
 8572
 8573
 8574
 8575
 8576
 8577
 8578
 8579
 8580
 8581
 8582
 8583
 8584
 8585
 8586
 8587
 8588
 8589
 8590
 8591
 8592
 8593
 8594
 8595
 8596
 8597
 8598
 8599
 8600
 8601
 8602
 8603
 8604
 8605
 8606
 8607
 8608
 8609
 8610
 8611
 8612
 8613
 8614
 8615
 8616
 8617
 8618
 8619
 8620
 8621
 8622
 8623
 8624
 8625
 8626
 8627
 8628
 8629
 8630
 8631
 8632
 8633
 8634
 8635
 8636
 8637
 8638
 8639
 8640
 8641
 8642
 8643
 8644
 8645
 8646
 8647
 8648
 8649
 8650
 8651
 8652
 8653
 8654
 8655
 8656
 8657
 8658
 8659
 8660
 8661
 8662
 8663
 8664
 8665
 8666
 8667
 8668
 8669
 8670
 8671
 8672
 8673
 8674
 8675
 8676
 8677
 8678
 8679
 8680
 8681
 8682
 8683
 8684
 8685
 8686
 8687
 8688
 8689
 8690
 8691
 8692
 8693
 8694
 8695
 8696
 8697
 8698
 8699
 8700
 8701
 8702
 8703
 8704
 8705
 8706
 8707
 8708
 8709
 8710
 8711
 8712
 8713
 8714
 8715
 8716
 8717
 8718
 8719
 8720
 8721
 8722
 8723
 8724
 8725
 8726
 8727
 8728
 8729
 8730
 8731
 8732
 8733
 8734
 8735
 8736
 8737
 8738
 8739
 8740
 8741
 8742
 8743
 8744
 8745
 8746
 8747
 8748
 8749
 8750
 8751
 8752
 8753
 8754
 8755
 8756
 8757
 8758
 8759
 8760
 8761
 8762
 8763
 8764
 8765
 8766
 8767
 8768
 8769
 8770
 8771
 8772
 8773
 8774
 8775
 8776
 8777
 8778
 8779
 8780
 8781
 8782
 8783
 8784
 8785
 8786
 8787
 8788
 8789
 8790
 8791
 8792
 8793
 8794
 8795
 8796
 8797
 8798
 8799
 8800
 8801
 8802
 8803
 8804
 8805
 8806
 8807
 8808
 8809
 8810
 8811
 8812
 8813
 8814
 8815
 8816
 8817
 8818
 8819
 8820
 8821
 8822
 8823
 8824
 8825
 8826
 8827
 8828
 8829
 8830
 8831
 8832
 8833
 8834
 8835
 8836
 8837
 8838
 8839
 8840
 8841
 8842
 8843
 8844
 8845
 8846
 8847
 8848
 8849
 8850
 8851
 8852
 8853
 8854
 8855
 8856
 8857
 8858
 8859
 8860
 8861
 8862
 8863
 8864
 8865
 8866
 8867
 8868
 8869
 8870
 8871
 8872
 8873
 8874
 8875
 8876
 8877
 8878
 8879
 8880
 8881
 8882
 8883
 8884
 8885
 8886
 8887
 8888
 8889
 8890
 8891
 8892
 8893
 8894
 8895
 8896
 8897
 8898
 8899
 8900
 8901
 8902
 8903
 8904
 8905
 8906
 8907
 8908
 8909
 8910
 8911
 8912
 8913
 8914
 8915
 8916
 8917
 8918
 8919
 8920
 8921
 8922
 8923
 8924
 8925
 8926
 8927
 8928
 8929
 8930
 8931
 8932
 8933
 8934
 8935
 8936
 8937
 8938
 8939
 8940
 8941
 8942
 8943
 8944
 8945
 8946
 8947
 8948
 8949
 8950
 8951
 8952
 8953
 8954
 8955
 8956
 8957
 8958
 8959
 8960
 8961
 8962
 8963
 8964
 8965
 8966
 8967
 8968
 8969
 8970
 8971
 8972
 8973
 8974
 8975
 8976
 8977
 8978
 8979
 8980
 8981
 8982
 8983
 8984
 8985
 8986
 8987
 8988
 8989
 8990
 8991
 8992
 8993
 8994
 8995
 8996
 8997
 8998
 8999
 9000
 9001
 9002
 9003
 9004
 9005
 9006
 9007
 9008
 9009
 9010
 9011
 9012
 9013
 9014
 9015
 9016
 9017
 9018
 9019
 9020
 9021
 9022
 9023
 9024
 9025
 9026
 9027
 9028
 9029
 9030
 9031
 9032
 9033
 9034
 9035
 9036
 9037
 9038
 9039
 9040
 9041
 9042
 9043
 9044
 9045
 9046
 9047
 9048
 9049
 9050
 9051
 9052
 9053
 9054
 9055
 9056
 9057
 9058
 9059
 9060
 9061
 9062
 9063
 9064
 9065
 9066
 9067
 9068
 9069
 9070
 9071
 9072
 9073
 9074
 9075
 9076
 9077
 9078
 9079
 9080
 9081
 9082
 9083
 9084
 9085
 9086
 9087
 9088
 9089
 9090
 9091
 9092
 9093
 9094
 9095
 9096
 9097
 9098
 9099
 9100
 9101
 9102
 9103
 9104
 9105
 9106
 9107
 9108
 9109
 9110
 9111
 9112
 9113
 9114
 9115
 9116
 9117
 9118
 9119
 9120
 9121
 9122
 9123
 9124
 9125
 9126
 9127
 9128
 9129
 9130
 9131
 9132
 9133
 9134
 9135
 9136
 9137
 9138
 9139
 9140
 9141
 9142
 9143
 9144
 9145
 9146
 9147
 9148
 9149
 9150
 9151
 9152
 9153
 9154
 9155
 9156
 9157
 9158
 9159
 9160
 9161
 9162
 9163
 9164
 9165
 9166
 9167
 9168
 9169
 9170
 9171
 9172
 9173
 9174
 9175
 9176
 9177
 9178
 9179
 9180
 9181
 9182
 9183
 9184
 9185
 9186
 9187
 9188
 9189
 9190
 9191
 9192
 9193
 9194
 9195
 9196
 9197
 9198
 9199
 9200
 9201
 9202
 9203
 9204
 9205
 9206
 9207
 9208
 9209
 9210
 9211
 9212
 9213
 9214
 9215
 9216
 9217
 9218
 9219
 9220
 9221
 9222
 9223
 9224
 9225
 9226
 9227
 9228
 9229
 9230
 9231
 9232
 9233
 9234
 9235
 9236
 9237
 9238
 9239
 9240
 9241
 9242
 9243
 9244
 9245
 9246
 9247
 9248
 9249
 9250
 9251
 9252
 9253
 9254
 9255
 9256
 9257
 9258
 9259
 9260
 9261
 9262
 9263
 9264
 9265
 9266
 9267
 9268
 9269
 9270
 9271
 9272
 9273
 9274
 9275
 9276
 9277
 9278
 9279
 9280
 9281
 9282
 9283
 9284
 9285
 9286
 9287
 9288
 9289
 9290
 9291
 9292
 9293
 9294
 9295
 9296
 9297
 9298
 9299
 9300
 9301
 9302
 9303
 9304
 9305
 9306
 9307
 9308
 9309
 9310
 9311
 9312
 9313
 9314
 9315
 9316
 9317
 9318
 9319
 9320
 9321
 9322
 9323
 9324
 9325
 9326
 9327
 9328
 9329
 9330
 9331
 9332
 9333
 9334
 9335
 9336
 9337
 9338
 9339
 9340
 9341
 9342
 9343
 9344
 9345
 9346
 9347
 9348
 9349
 9350
 9351
 9352
 9353
 9354
 9355
 9356
 9357
 9358
 9359
 9360
 9361
 9362
 9363
 9364
 9365
 9366
 9367
 9368
 9369
 9370
 9371
 9372
 9373
 9374
 9375
 9376
 9377
 9378
 9379
 9380
 9381
 9382
 9383
 9384
 9385
 9386
 9387
 9388
 9389
 9390
 9391
 9392
 9393
 9394
 9395
 9396
 9397
 9398
 9399
 9400
 9401
 9402
 9403
 9404
 9405
 9406
 9407
 9408
 9409
 9410
 9411
 9412
 9413
 9414
 9415
 9416
 9417
 9418
 9419
 9420
 9421
 9422
 9423
 9424
 9425
 9426
 9427
 9428
 9429
 9430
 9431
 9432
 9433
 9434
 9435
 9436
 9437
 9438
 9439
 9440
 9441
 9442
 9443
 9444
 9445
 9446
 9447
 9448
 9449
 9450
 9451
 9452
 9453
 9454
 9455
 9456
 9457
 9458
 9459
 9460
 9461
 9462
 9463
 9464
 9465
 9466
 9467
 9468
 9469
 9470
 9471
 9472
 9473
 9474
 9475
 9476
 9477
 9478
 9479
 9480
 9481
 9482
 9483
 9484
 9485
 9486
 9487
 9488
 9489
 9490
 9491
 9492
 9493
 9494
 9495
 9496
 9497
 9498
 9499
 9500
 9501
 9502
 9503
 9504
 9505
 9506
 9507
 9508
 9509
 9510
 9511
 9512
 9513
 9514
 9515
 9516
 9517
 9518
 9519
 9520
 9521
 9522
 9523
 9524
 9525
 9526
 9527
 9528
 9529
 9530
 9531
 9532
 9533
 9534
 9535
 9536
 9537
 9538
 9539
 9540
 9541
 9542
 9543
 9544
 9545
 9546
 9547
 9548
 9549
 9550
 9551
 9552
 9553
 9554
 9555
 9556
 9557
 9558
 9559
 9560
 9561
 9562
 9563
 9564
 9565
 9566
 9567
 9568
 9569
 9570
 9571
 9572
 9573
 9574
 9575
 9576
 9577
 9578
 9579
 9580
 9581
 9582
 9583
 9584
 9585
 9586
 9587
 9588
 9589
 9590
 9591
 9592
 9593
 9594
 9595
 9596
 9597
 9598
 9599
 9600
 9601
 9602
 9603
 9604
 9605
 9606
 9607
 9608
 9609
 9610
 9611
 9612
 9613
 9614
 9615
 9616
 9617
 9618
 9619
 9620
 9621
 9622
 9623
 9624
 9625
 9626
 9627
 9628
 9629
 9630
 9631
 9632
 9633
 9634
 9635
 9636
 9637
 9638
 9639
 9640
 9641
 9642
 9643
 9644
 9645
 9646
 9647
 9648
 9649
 9650
 9651
 9652
 9653
 9654
 9655
 9656
 9657
 9658
 9659
 9660
 9661
 9662
 9663
 9664
 9665
 9666
 9667
 9668
 9669
 9670
 9671
 9672
 9673
 9674
 9675
 9676
 9677
 9678
 9679
 9680
 9681
 9682
 9683
 9684
 9685
 9686
 9687
 9688
 9689
 9690
 9691
 9692
 9693
 9694
 9695
 9696
 9697
 9698
 9699
 9700
 9701
 9702
 9703
 9704
 9705
 9706
 9707
 9708
 9709
 9710
 9711
 9712
 9713
 9714
 9715
 9716
 9717
 9718
 9719
 9720
 9721
 9722
 9723
 9724
 9725
 9726
 9727
 9728
 9729
 9730
 9731
 9732
 9733
 9734
 9735
 9736
 9737
 9738
 9739
 9740
 9741
 9742
 9743
 9744
 9745
 9746
 9747
 9748
 9749
 9750
 9751
 9752
 9753
 9754
 9755
 9756
 9757
 9758
 9759
 9760
 9761
 9762
 9763
 9764
 9765
 9766
 9767
 9768
 9769
 9770
 9771
 9772
 9773
 9774
 9775
 9776
 9777
 9778
 9779
 9780
 9781
 9782
 9783
 9784
 9785
 9786
 9787
 9788
 9789
 9790
 9791
 9792
 9793
 9794
 9795
 9796
 9797
 9798
 9799
 9800
 9801
 9802
 9803
 9804
 9805
 9806
 9807
 9808
 9809
 9810
 9811
 9812
 9813
 9814
 9815
 9816
 9817
 9818
 9819
 9820
 9821
 9822
 9823
 9824
 9825
 9826
 9827
 9828
 9829
 9830
 9831
 9832
 9833
 9834
 9835
 9836
 9837
 9838
 9839
 9840
 9841
 9842
 9843
 9844
 9845
 9846
 9847
 9848
 9849
 9850
 9851
 9852
 9853
 9854
 9855
 9856
 9857
 9858
 9859
 9860
 9861
 9862
 9863
 9864
 9865
 9866
 9867
 9868
 9869
 9870
 9871
 9872
 9873
 9874
 9875
 9876
 9877
 9878
 9879
 9880
 9881
 9882
 9883
 9884
 9885
 9886
 9887
 9888
 9889
 9890
 9891
 9892
 9893
 9894
 9895
 9896
 9897
 9898
 9899
 9900
 9901
 9902
 9903
 9904
 9905
 9906
 9907
 9908
 9909
 9910
 9911
 9912
 9913
 9914
 9915
 9916
 9917
 9918
 9919
 9920
 9921
 9922
 9923
 9924
 9925
 9926
 9927
 9928
 9929
 9930
 9931
 9932
 9933
 9934
 9935
 9936
 9937
 9938
 9939
 9940
 9941
 9942
 9943
 9944
 9945
 9946
 9947
 9948
 9949
 9950
 9951
 9952
 9953
 9954
 9955
 9956
 9957
 9958
 9959
 9960
 9961
 9962
 9963
 9964
 9965
 9966
 9967
 9968
 9969
 9970
 9971
 9972
 9973
 9974
 9975
 9976
 9977
 9978
 9979
 9980
 9981
 9982
 9983
 9984
 9985
 9986
 9987
 9988
 9989
 9990
 9991
 9992
 9993
 9994
 9995
 9996
 9997
 9998
 9999
10000
10001
10002
10003
10004
10005
10006
10007
10008
10009
10010
10011
10012
10013
10014
10015
10016
10017
10018
10019
10020
10021
10022
10023
10024
10025
10026
10027
10028
10029
10030
10031
10032
10033
10034
10035
10036
10037
10038
10039
10040
10041
10042
10043
10044
10045
10046
10047
10048
10049
10050
10051
10052
10053
10054
10055
10056
10057
10058
10059
10060
10061
10062
10063
10064
10065
10066
10067
10068
10069
10070
10071
10072
10073
10074
10075
10076
10077
10078
10079
10080
10081
10082
10083
10084
10085
10086
10087
10088
10089
10090
10091
10092
10093
10094
10095
10096
10097
10098
10099
10100
10101
10102
10103
10104
10105
10106
10107
10108
10109
10110
10111
10112
10113
10114
10115
10116
10117
10118
10119
10120
10121
10122
10123
10124
10125
10126
10127
10128
10129
10130
10131
10132
10133
10134
10135
10136
10137
10138
10139
10140
10141
10142
10143
10144
10145
10146
10147
10148
10149
10150
10151
10152
10153
10154
10155
10156
10157
10158
10159
10160
10161
10162
10163
10164
10165
10166
10167
10168
10169
10170
10171
10172
10173
10174
10175
10176
10177
10178
10179
10180
10181
10182
10183
10184
10185
10186
10187
10188
10189
10190
10191
10192
10193
10194
10195
10196
10197
10198
10199
10200
10201
10202
10203
10204
10205
10206
10207
10208
10209
10210
10211
10212
10213
10214
10215
10216
10217
10218
10219
10220
10221
10222
10223
10224
10225
10226
10227
10228
10229
10230
10231
10232
10233
10234
10235
10236
10237
10238
10239
10240
10241
10242
10243
10244
10245
10246
10247
10248
10249
10250
10251
10252
10253
10254
10255
10256
10257
10258
10259
10260
10261
10262
10263
10264
10265
10266
10267
10268
10269
10270
10271
10272
10273
10274
10275
10276
10277
10278
10279
10280
10281
10282
10283
10284
10285
10286
10287
10288
10289
10290
10291
10292
10293
10294
10295
10296
10297
10298
10299
10300
10301
10302
10303
10304
10305
10306
10307
10308
10309
10310
10311
10312
10313
10314
10315
10316
10317
10318
10319
10320
10321
10322
10323
10324
10325
10326
10327
10328
10329
10330
10331
10332
10333
10334
10335
10336
10337
10338
10339
10340
10341
10342
10343
10344
10345
10346
10347
10348
10349
10350
10351
10352
10353
10354
10355
10356
10357
10358
10359
10360
10361
10362
10363
10364
10365
10366
10367
10368
10369
10370
10371
10372
10373
10374
10375
10376
10377
10378
10379
10380
10381
10382
10383
10384
10385
10386
10387
10388
10389
10390
10391
10392
10393
10394
10395
10396
10397
10398
10399
10400
10401
10402
10403
10404
10405
10406
10407
10408
10409
10410
10411
10412
10413
10414
10415
10416
10417
10418
10419
10420
10421
10422
10423
10424
10425
10426
10427
10428
10429
10430
10431
10432
10433
10434
10435
10436
10437
10438
10439
10440
10441
10442
10443
10444
10445
10446
10447
10448
10449
10450
10451
10452
10453
10454
10455
10456
10457
10458
10459
10460
10461
10462
10463
10464
10465
10466
10467
10468
10469
10470
10471
10472
10473
10474
10475
10476
10477
10478
10479
10480
10481
10482
10483
10484
10485
10486
10487
10488
10489
10490
10491
10492
10493
10494
10495
10496
10497
10498
10499
10500
10501
10502
10503
10504
10505
10506
10507
10508
10509
10510
10511
10512
10513
10514
10515
10516
10517
10518
10519
10520
10521
10522
10523
10524
10525
10526
10527
10528
10529
10530
10531
10532
10533
10534
10535
10536
10537
10538
10539
10540
10541
10542
10543
10544
10545
10546
10547
10548
10549
10550
10551
10552
10553
10554
10555
10556
10557
10558
10559
10560
10561
10562
10563
10564
10565
10566
10567
10568
10569
10570
10571
10572
10573
10574
10575
10576
10577
10578
10579
10580
10581
10582
10583
10584
10585
10586
10587
10588
10589
10590
10591
10592
10593
10594
10595
10596
10597
10598
10599
10600
10601
10602
10603
10604
10605
10606
10607
10608
10609
10610
10611
10612
10613
10614
10615
10616
10617
10618
10619
10620
10621
10622
10623
10624
10625
10626
10627
10628
10629
10630
10631
10632
10633
10634
10635
10636
10637
10638
10639
10640
10641
10642
10643
10644
10645
10646
10647
10648
10649
10650
10651
10652
10653
10654
10655
10656
10657
10658
10659
10660
10661
10662
10663
10664
10665
10666
10667
10668
10669
10670
10671
10672
10673
10674
10675
10676
10677
10678
10679
10680
10681
10682
10683
10684
10685
10686
10687
10688
10689
10690
10691
10692
10693
10694
10695
10696
10697
10698
10699
10700
10701
10702
10703
10704
10705
10706
10707
10708
10709
10710
10711
10712
10713
10714
10715
10716
10717
10718
10719
10720
10721
10722
10723
10724
10725
10726
10727
10728
10729
10730
10731
10732
10733
10734
10735
10736
10737
10738
10739
10740
10741
10742
10743
10744
10745
10746
10747
10748
10749
10750
10751
10752
10753
10754
10755
10756
10757
10758
10759
10760
10761
10762
10763
10764
10765
10766
10767
10768
10769
10770
10771
10772
10773
10774
10775
10776
10777
10778
10779
10780
10781
10782
10783
10784
10785
10786
10787
10788
10789
10790
10791
10792
10793
10794
10795
10796
10797
10798
10799
10800
10801
10802
10803
10804
10805
10806
10807
10808
10809
10810
10811
10812
10813
10814
10815
10816
10817
10818
10819
10820
10821
10822
10823
10824
10825
10826
10827
10828
10829
10830
10831
10832
10833
10834
10835
10836
10837
10838
10839
10840
10841
10842
10843
10844
10845
10846
10847
10848
10849
10850
10851
10852
10853
10854
10855
10856
10857
10858
10859
10860
10861
10862
10863
10864
10865
10866
10867
10868
10869
10870
10871
10872
10873
10874
10875
10876
10877
10878
10879
10880
10881
10882
10883
10884
10885
10886
10887
10888
10889
10890
10891
10892
10893
10894
10895
10896
10897
10898
10899
10900
10901
10902
10903
10904
10905
10906
10907
10908
10909
10910
10911
10912
10913
10914
10915
10916
10917
10918
10919
10920
10921
10922
10923
10924
10925
10926
10927
10928
10929
10930
10931
10932
10933
10934
10935
10936
10937
10938
10939
10940
10941
10942
10943
10944
10945
10946
10947
10948
10949
10950
10951
10952
10953
10954
10955
10956
10957
10958
10959
10960
10961
10962
10963
10964
10965
10966
10967
10968
10969
10970
10971
10972
10973
10974
10975
10976
10977
10978
10979
10980
10981
10982
10983
10984
10985
10986
10987
10988
10989
10990
10991
10992
10993
10994
10995
10996
10997
10998
10999
11000
11001
11002
11003
11004
11005
11006
11007
11008
11009
11010
11011
11012
11013
11014
11015
11016
11017
11018
11019
11020
11021
11022
11023
11024
11025
11026
11027
11028
11029
11030
11031
11032
11033
11034
11035
11036
11037
11038
11039
11040
11041
11042
11043
11044
11045
11046
11047
11048
11049
11050
11051
11052
11053
11054
11055
11056
11057
11058
11059
11060
11061
11062
11063
11064
11065
11066
11067
11068
11069
11070
11071
11072
11073
11074
11075
11076
11077
11078
11079
11080
11081
11082
11083
11084
11085
11086
11087
11088
11089
11090
11091
11092
11093
11094
11095
11096
11097
11098
11099
11100
11101
11102
11103
11104
11105
11106
11107
11108
11109
11110
11111
11112
11113
11114
11115
11116
11117
11118
11119
11120
11121
11122
11123
11124
11125
11126
11127
11128
11129
11130
11131
11132
11133
11134
11135
11136
11137
11138
11139
11140
11141
11142
11143
11144
11145
11146
11147
11148
11149
11150
11151
11152
11153
11154
11155
11156
11157
11158
11159
11160
11161
11162
11163
11164
11165
11166
11167
11168
11169
11170
11171
11172
11173
11174
11175
11176
11177
11178
11179
11180
11181
11182
11183
11184
11185
11186
11187
11188
11189
11190
11191
11192
11193
11194
11195
11196
11197
11198
11199
11200
11201
11202
11203
11204
11205
11206
11207
11208
11209
11210
11211
11212
11213
11214
11215
11216
11217
11218
11219
11220
11221
11222
11223
11224
11225
11226
11227
11228
11229
11230
11231
11232
11233
11234
11235
11236
11237
11238
11239
11240
11241
11242
11243
11244
11245
11246
11247
11248
11249
11250
11251
11252
11253
11254
11255
11256
11257
11258
11259
11260
11261
11262
11263
11264
11265
11266
11267
11268
11269
11270
11271
11272
11273
11274
11275
11276
11277
11278
11279
11280
11281
11282
11283
11284
11285
11286
11287
11288
11289
11290
11291
11292
11293
11294
11295
11296
11297
11298
11299
11300
11301
11302
11303
11304
11305
11306
11307
11308
11309
11310
11311
11312
11313
11314
11315
11316
11317
11318
11319
11320
11321
11322
11323
11324
11325
11326
11327
11328
11329
11330
11331
11332
11333
11334
11335
11336
11337
11338
11339
11340
11341
11342
11343
11344
11345
11346
11347
11348
11349
11350
11351
11352
11353
11354
11355
11356
11357
11358
11359
11360
11361
11362
11363
11364
11365
11366
11367
11368
11369
11370
11371
11372
11373
11374
11375
11376
11377
11378
11379
11380
11381
11382
11383
11384
11385
11386
11387
11388
11389
11390
11391
11392
11393
11394
11395
11396
11397
11398
11399
11400
11401
11402
11403
11404
11405
11406
11407
11408
11409
11410
11411
11412
11413
11414
11415
11416
11417
11418
11419
11420
11421
11422
11423
11424
11425
11426
11427
11428
11429
11430
11431
11432
11433
11434
11435
11436
11437
11438
11439
11440
11441
11442
11443
11444
11445
11446
11447
11448
11449
11450
11451
11452
11453
11454
11455
11456
11457
11458
11459
11460
11461
11462
11463
11464
11465
11466
11467
11468
11469
11470
11471
11472
11473
11474
11475
11476
11477
11478
11479
11480
11481
11482
11483
11484
11485
11486
11487
11488
11489
11490
11491
11492
11493
11494
11495
11496
11497
11498
11499
11500
11501
11502
11503
11504
11505
11506
11507
11508
11509
11510
11511
11512
11513
11514
11515
11516
11517
11518
11519
11520
11521
11522
11523
11524
11525
11526
11527
11528
11529
11530
11531
11532
11533
11534
11535
11536
11537
11538
11539
11540
11541
11542
11543
11544
11545
11546
11547
11548
11549
11550
11551
11552
11553
11554
11555
11556
11557
11558
11559
11560
11561
11562
11563
11564
11565
11566
11567
11568
11569
11570
11571
11572
11573
11574
11575
11576
11577
11578
11579
11580
11581
11582
11583
11584
11585
11586
11587
11588
11589
11590
11591
11592
11593
11594
11595
11596
11597
11598
11599
11600
11601
11602
11603
11604
11605
11606
11607
11608
11609
11610
11611
11612
11613
11614
11615
11616
11617
11618
11619
11620
11621
11622
11623
11624
11625
11626
11627
11628
11629
11630
11631
11632
11633
11634
11635
11636
11637
11638
11639
11640
11641
11642
11643
11644
11645
11646
11647
11648
11649
11650
11651
11652
11653
11654
11655
11656
11657
11658
11659
11660
11661
11662
11663
11664
11665
11666
11667
11668
11669
11670
11671
11672
11673
11674
11675
11676
11677
11678
11679
11680
11681
11682
11683
11684
11685
11686
11687
11688
11689
11690
11691
11692
11693
11694
11695
11696
11697
11698
11699
11700
11701
11702
11703
11704
11705
11706
11707
11708
11709
11710
11711
11712
11713
11714
11715
11716
11717
11718
11719
11720
11721
11722
11723
11724
11725
11726
11727
11728
11729
11730
11731
11732
11733
11734
11735
11736
11737
11738
11739
11740
11741
11742
11743
11744
11745
11746
11747
11748
11749
11750
11751
11752
11753
11754
11755
11756
11757
11758
11759
11760
11761
11762
11763
11764
11765
11766
11767
11768
11769
11770
11771
11772
11773
11774
11775
11776
11777
11778
11779
11780
11781
11782
11783
11784
11785
11786
11787
11788
11789
11790
11791
11792
11793
11794
11795
11796
11797
11798
11799
11800
11801
11802
11803
11804
11805
11806
11807
11808
11809
11810
11811
11812
11813
11814
11815
11816
11817
11818
11819
11820
11821
11822
11823
11824
11825
11826
11827
11828
11829
11830
11831
11832
11833
11834
11835
11836
11837
11838
11839
11840
11841
11842
11843
11844
11845
11846
11847
11848
11849
11850
11851
11852
11853
11854
11855
11856
11857
11858
11859
11860
11861
11862
11863
11864
11865
11866
11867
11868
11869
11870
11871
11872
11873
11874
11875
11876
11877
11878
11879
11880
11881
11882
11883
11884
11885
11886
11887
11888
11889
11890
11891
11892
11893
11894
11895
11896
11897
11898
11899
11900
11901
11902
11903
11904
11905
11906
11907
11908
11909
11910
11911
11912
11913
11914
11915
11916
11917
11918
11919
11920
11921
11922
11923
11924
11925
11926
11927
11928
11929
11930
11931
11932
11933
11934
11935
11936
11937
11938
11939
11940
11941
11942
11943
11944
11945
11946
11947
11948
11949
11950
11951
11952
11953
11954
11955
11956
11957
11958
11959
11960
11961
11962
11963
11964
11965
11966
11967
11968
11969
11970
11971
11972
11973
11974
11975
11976
11977
11978
11979
11980
11981
11982
11983
11984
11985
11986
11987
11988
11989
11990
11991
11992
11993
11994
11995
11996
11997
11998
11999
12000
12001
12002
12003
12004
12005
12006
12007
12008
12009
12010
12011
12012
12013
12014
12015
12016
12017
12018
12019
12020
12021
12022
12023
12024
12025
12026
12027
12028
12029
12030
12031
12032
12033
12034
12035
12036
12037
12038
12039
12040
12041
12042
12043
12044
12045
12046
12047
12048
12049
12050
12051
12052
12053
12054
12055
12056
12057
12058
12059
12060
12061
12062
12063
12064
12065
12066
12067
12068
12069
12070
12071
12072
12073
12074
12075
12076
12077
12078
12079
12080
12081
12082
12083
12084
12085
12086
12087
12088
12089
12090
12091
12092
12093
12094
12095
12096
12097
12098
12099
12100
12101
12102
12103
12104
12105
12106
12107
12108
12109
12110
12111
12112
12113
12114
12115
12116
12117
12118
12119
12120
12121
12122
12123
12124
12125
12126
12127
12128
12129
12130
12131
12132
12133
12134
12135
12136
12137
12138
12139
12140
12141
12142
12143
12144
12145
12146
12147
12148
12149
12150
12151
12152
12153
12154
12155
12156
12157
12158
12159
12160
12161
12162
12163
12164
12165
12166
12167
12168
12169
12170
12171
12172
12173
12174
12175
12176
12177
12178
12179
12180
12181
12182
12183
12184
12185
12186
12187
12188
12189
12190
12191
12192
12193
12194
12195
12196
12197
12198
12199
12200
12201
12202
12203
12204
12205
12206
12207
12208
12209
12210
12211
12212
12213
12214
12215
12216
12217
12218
12219
12220
12221
12222
12223
12224
12225
12226
12227
12228
12229
12230
12231
12232
12233
12234
12235
12236
12237
12238
12239
12240
12241
12242
12243
12244
12245
12246
12247
12248
12249
12250
12251
12252
12253
12254
12255
12256
12257
12258
12259
12260
12261
12262
12263
12264
12265
12266
12267
12268
12269
12270
12271
12272
12273
12274
12275
12276
12277
12278
12279
12280
12281
12282
12283
12284
12285
12286
12287
12288
12289
12290
12291
12292
12293
12294
12295
12296
12297
12298
12299
12300
12301
12302
12303
12304
12305
12306
12307
12308
12309
12310
12311
12312
12313
12314
12315
12316
12317
12318
12319
12320
12321
12322
12323
12324
12325
12326
12327
12328
12329
12330
12331
12332
12333
12334
12335
12336
12337
12338
12339
12340
12341
12342
12343
12344
12345
12346
12347
12348
12349
12350
12351
12352
12353
12354
12355
12356
12357
12358
12359
12360
12361
12362
12363
12364
12365
12366
12367
12368
12369
12370
12371
12372
12373
12374
12375
12376
12377
12378
12379
12380
12381
12382
12383
12384
12385
12386
12387
12388
12389
12390
12391
12392
12393
12394
12395
12396
12397
12398
12399
12400
12401
12402
12403
12404
12405
12406
12407
12408
12409
12410
12411
12412
12413
12414
12415
12416
12417
12418
12419
12420
12421
12422
12423
12424
12425
12426
12427
12428
12429
12430
12431
12432
12433
12434
12435
12436
12437
12438
12439
12440
12441
12442
12443
12444
12445
12446
12447
12448
12449
12450
12451
12452
12453
12454
12455
12456
12457
12458
12459
12460
12461
12462
12463
12464
12465
12466
12467
12468
12469
12470
12471
12472
12473
12474
12475
12476
12477
12478
12479
12480
12481
12482
12483
12484
12485
12486
12487
12488
12489
12490
12491
12492
12493
12494
12495
12496
12497
12498
12499
12500
12501
12502
12503
12504
12505
12506
12507
12508
12509
12510
12511
12512
12513
12514
12515
12516
12517
12518
12519
12520
12521
12522
12523
12524
12525
12526
12527
12528
12529
12530
12531
12532
12533
12534
12535
12536
12537
12538
12539
12540
12541
12542
12543
12544
12545
12546
12547
12548
12549
12550
12551
12552
12553
12554
12555
12556
12557
12558
12559
12560
12561
12562
12563
12564
12565
12566
12567
12568
12569
12570
12571
12572
12573
12574
12575
12576
12577
12578
12579
12580
12581
12582
12583
12584
12585
12586
12587
12588
12589
12590
12591
12592
12593
12594
12595
12596
12597
12598
12599
12600
12601
12602
12603
12604
12605
12606
12607
12608
12609
12610
12611
12612
12613
12614
12615
12616
12617
12618
12619
12620
12621
12622
12623
12624
12625
12626
12627
12628
12629
12630
12631
12632
12633
12634
12635
12636
12637
12638
12639
12640
12641
12642
12643
12644
12645
12646
12647
12648
12649
12650
12651
12652
12653
12654
12655
12656
12657
12658
12659
12660
12661
12662
12663
12664
12665
12666
12667
12668
12669
12670
12671
12672
12673
12674
12675
12676
12677
12678
12679
12680
12681
12682
12683
12684
12685
12686
12687
12688
12689
12690
12691
12692
12693
12694
12695
12696
12697
12698
12699
12700
12701
12702
12703
12704
12705
12706
12707
12708
12709
12710
12711
12712
12713
12714
12715
12716
12717
12718
12719
12720
12721
12722
12723
12724
12725
12726
12727
12728
12729
12730
12731
12732
12733
12734
12735
12736
12737
12738
12739
12740
12741
12742
12743
12744
12745
12746
12747
12748
12749
12750
12751
12752
12753
12754
12755
12756
12757
12758
12759
12760
12761
12762
12763
12764
12765
12766
12767
12768
12769
12770
12771
12772
12773
12774
12775
12776
12777
12778
12779
12780
12781
12782
12783
12784
12785
12786
12787
12788
12789
12790
12791
12792
12793
12794
12795
12796
12797
12798
12799
12800
12801
12802
12803
12804
12805
12806
12807
12808
12809
12810
12811
12812
12813
12814
12815
12816
12817
12818
12819
12820
12821
12822
12823
12824
12825
12826
12827
12828
12829
12830
12831
12832
12833
12834
12835
12836
12837
12838
12839
12840
12841
12842
12843
12844
12845
12846
12847
12848
12849
12850
12851
12852
12853
12854
12855
12856
12857
12858
12859
12860
12861
12862
12863
12864
12865
12866
12867
12868
12869
12870
12871
12872
12873
12874
12875
12876
12877
12878
12879
12880
12881
12882
12883
12884
12885
12886
12887
12888
12889
12890
12891
12892
12893
12894
12895
12896
12897
12898
12899
12900
12901
12902
12903
12904
12905
12906
12907
12908
12909
12910
12911
12912
12913
12914
12915
12916
12917
12918
12919
12920
12921
12922
12923
12924
12925
12926
12927
12928
12929
12930
12931
12932
12933
12934
12935
12936
12937
12938
12939
12940
12941
12942
12943
12944
12945
12946
12947
12948
12949
12950
12951
12952
12953
12954
12955
12956
12957
12958
12959
12960
12961
12962
12963
12964
12965
12966
12967
12968
12969
12970
12971
12972
12973
12974
12975
12976
12977
12978
12979
12980
12981
12982
12983
12984
12985
12986
12987
12988
12989
12990
12991
12992
12993
12994
12995
12996
12997
12998
12999
13000
13001
13002
13003
13004
13005
13006
13007
13008
13009
13010
13011
13012
13013
13014
13015
13016
13017
13018
13019
13020
13021
13022
13023
13024
13025
13026
13027
13028
13029
13030
13031
13032
13033
13034
13035
13036
13037
13038
13039
13040
13041
13042
13043
13044
13045
13046
13047
13048
13049
13050
13051
13052
13053
13054
13055
13056
13057
13058
13059
13060
13061
13062
13063
13064
13065
13066
13067
13068
13069
13070
13071
13072
13073
13074
13075
13076
13077
13078
13079
13080
13081
13082
13083
13084
13085
13086
13087
13088
13089
13090
13091
13092
13093
13094
13095
13096
13097
13098
13099
13100
13101
13102
13103
13104
13105
13106
13107
13108
13109
13110
13111
13112
13113
13114
13115
13116
13117
13118
13119
13120
13121
13122
13123
13124
13125
13126
13127
13128
13129
13130
13131
13132
13133
13134
13135
13136
13137
13138
13139
13140
13141
13142
13143
13144
13145
13146
13147
13148
13149
13150
13151
13152
13153
13154
13155
13156
13157
13158
13159
13160
13161
13162
13163
13164
13165
13166
13167
13168
13169
13170
13171
13172
13173
13174
13175
13176
13177
13178
13179
13180
13181
13182
13183
13184
13185
13186
13187
13188
13189
13190
13191
13192
13193
13194
13195
13196
13197
13198
13199
13200
13201
13202
13203
13204
13205
13206
13207
13208
13209
13210
13211
13212
13213
13214
13215
13216
13217
13218
13219
13220
13221
13222
13223
13224
13225
13226
13227
13228
13229
13230
13231
13232
13233
13234
13235
13236
13237
13238
13239
13240
13241
13242
13243
13244
13245
13246
13247
13248
13249
13250
13251
13252
13253
13254
13255
13256
13257
13258
13259
13260
13261
13262
13263
13264
13265
13266
13267
13268
13269
13270
13271
13272
13273
13274
13275
13276
13277
13278
13279
13280
13281
13282
13283
13284
13285
13286
13287
13288
13289
13290
13291
13292
13293
13294
13295
13296
13297
13298
13299
13300
13301
13302
13303
13304
13305
13306
13307
13308
13309
13310
13311
13312
13313
13314
13315
13316
13317
13318
13319
13320
13321
13322
13323
13324
13325
13326
13327
13328
13329
13330
13331
13332
13333
13334
13335
13336
13337
13338
13339
13340
13341
13342
13343
13344
13345
13346
13347
13348
13349
13350
13351
13352
13353
13354
13355
13356
13357
13358
13359
13360
13361
13362
13363
13364
13365
13366
13367
13368
13369
13370
13371
13372
13373
13374
13375
13376
13377
13378
13379
13380
13381
13382
13383
13384
13385
13386
13387
13388
13389
13390
13391
13392
13393
13394
13395
13396
13397
13398
13399
13400
13401
13402
13403
13404
13405
13406
13407
13408
13409
13410
13411
13412
13413
13414
13415
13416
13417
13418
13419
13420
13421
13422
13423
13424
13425
13426
13427
13428
13429
13430
13431
13432
13433
13434
13435
13436
13437
13438
13439
13440
13441
13442
13443
13444
13445
13446
13447
13448
13449
13450
13451
13452
13453
13454
13455
13456
13457
13458
13459
13460
13461
13462
13463
13464
13465
13466
13467
13468
13469
13470
13471
13472
13473
13474
13475
13476
13477
13478
13479
13480
13481
13482
13483
13484
13485
13486
13487
13488
13489
13490
13491
13492
13493
13494
13495
13496
13497
13498
13499
13500
13501
13502
13503
13504
13505
13506
13507
13508
13509
13510
13511
13512
13513
13514
13515
13516
13517
13518
13519
13520
13521
13522
13523
13524
13525
13526
13527
13528
13529
13530
13531
13532
13533
13534
13535
13536
13537
13538
13539
13540
13541
13542
13543
13544
13545
13546
13547
13548
13549
13550
13551
13552
13553
13554
13555
13556
13557
13558
13559
13560
13561
13562
13563
13564
13565
13566
13567
13568
13569
13570
13571
13572
13573
13574
13575
13576
13577
13578
13579
13580
13581
13582
13583
13584
13585
13586
13587
13588
13589
13590
13591
13592
13593
13594
13595
13596
13597
13598
13599
13600
13601
13602
13603
13604
13605
13606
13607
13608
13609
13610
13611
13612
13613
13614
13615
13616
13617
13618
13619
13620
13621
13622
13623
13624
13625
13626
13627
13628
13629
13630
13631
13632
13633
13634
13635
13636
13637
13638
13639
13640
13641
13642
13643
13644
13645
13646
13647
13648
13649
13650
13651
13652
13653
13654
13655
13656
13657
13658
13659
13660
13661
13662
13663
13664
13665
13666
13667
13668
13669
13670
13671
13672
13673
13674
13675
13676
13677
13678
13679
13680
13681
13682
13683
13684
13685
13686
13687
13688
13689
13690
13691
13692
13693
13694
13695
13696
13697
13698
13699
13700
13701
13702
13703
13704
13705
13706
13707
13708
13709
13710
13711
13712
13713
13714
13715
13716
13717
13718
13719
13720
13721
13722
13723
13724
13725
13726
13727
13728
13729
13730
13731
13732
13733
13734
13735
13736
13737
13738
13739
13740
13741
13742
13743
13744
13745
13746
13747
13748
13749
13750
13751
13752
13753
13754
13755
13756
13757
13758
13759
13760
13761
13762
13763
13764
13765
13766
13767
13768
13769
13770
13771
13772
13773
13774
13775
13776
13777
13778
13779
13780
13781
13782
13783
13784
13785
13786
13787
13788
13789
13790
13791
13792
13793
13794
13795
13796
13797
13798
13799
13800
13801
13802
13803
13804
13805
13806
13807
13808
13809
13810
13811
13812
13813
13814
13815
13816
13817
13818
13819
13820
13821
13822
13823
13824
13825
13826
13827
13828
13829
13830
13831
13832
13833
13834
13835
13836
13837
13838
13839
13840
13841
13842
13843
13844
13845
13846
13847
13848
13849
13850
13851
13852
13853
13854
13855
13856
13857
13858
13859
13860
13861
13862
13863
13864
13865
13866
13867
13868
13869
13870
13871
13872
13873
13874
13875
13876
13877
13878
13879
13880
13881
13882
13883
13884
13885
13886
13887
13888
13889
13890
13891
13892
13893
13894
13895
13896
13897
13898
13899
13900
13901
13902
13903
13904
13905
13906
13907
13908
13909
13910
13911
13912
13913
13914
13915
13916
13917
13918
13919
13920
13921
13922
13923
13924
13925
13926
13927
13928
13929
13930
13931
13932
13933
13934
13935
13936
13937
13938
13939
13940
13941
13942
13943
13944
13945
13946
13947
13948
13949
13950
13951
13952
13953
13954
13955
13956
13957
13958
13959
13960
13961
13962
13963
13964
13965
13966
13967
13968
13969
13970
13971
13972
13973
13974
13975
13976
13977
13978
13979
13980
13981
13982
13983
13984
13985
13986
13987
13988
13989
13990
13991
13992
13993
13994
13995
13996
13997
13998
13999
14000
14001
14002
14003
14004
14005
14006
14007
14008
14009
14010
14011
14012
14013
14014
14015
14016
14017
14018
14019
14020
14021
14022
14023
14024
14025
14026
14027
14028
14029
14030
14031
14032
14033
14034
14035
14036
14037
14038
14039
14040
14041
14042
14043
14044
14045
14046
14047
14048
14049
14050
14051
14052
14053
14054
14055
14056
14057
14058
14059
14060
14061
14062
14063
14064
14065
14066
14067
14068
14069
14070
14071
14072
14073
14074
14075
14076
14077
14078
14079
14080
14081
14082
14083
14084
14085
14086
14087
14088
14089
14090
14091
14092
14093
14094
14095
14096
14097
14098
14099
14100
14101
14102
14103
14104
14105
14106
14107
14108
14109
14110
14111
14112
14113
14114
14115
14116
14117
14118
14119
14120
14121
14122
14123
14124
14125
14126
14127
14128
14129
14130
14131
14132
14133
14134
14135
14136
14137
14138
14139
14140
14141
14142
14143
14144
14145
14146
14147
14148
14149
14150
14151
14152
14153
14154
14155
14156
14157
14158
14159
14160
14161
14162
14163
14164
14165
14166
14167
14168
14169
14170
14171
14172
14173
14174
14175
14176
14177
14178
14179
14180
14181
14182
14183
14184
14185
14186
14187
14188
14189
14190
14191
14192
14193
14194
14195
14196
14197
14198
14199
14200
14201
14202
14203
14204
14205
14206
14207
14208
14209
14210
14211
14212
14213
14214
14215
14216
14217
14218
14219
14220
14221
14222
14223
14224
14225
14226
14227
14228
14229
14230
14231
14232
14233
14234
14235
14236
14237
14238
14239
14240
14241
14242
14243
14244
14245
14246
14247
14248
14249
14250
14251
14252
14253
14254
14255
14256
14257
14258
14259
14260
14261
14262
14263
14264
14265
14266
14267
14268
14269
14270
14271
14272
14273
14274
14275
14276
14277
14278
14279
14280
14281
14282
14283
14284
14285
14286
14287
14288
14289
14290
14291
14292
14293
14294
14295
14296
14297
14298
14299
14300
14301
14302
14303
14304
14305
14306
14307
14308
14309
14310
14311
14312
14313
14314
14315
14316
14317
14318
14319
14320
14321
14322
14323
14324
14325
14326
14327
14328
14329
14330
14331
14332
14333
14334
14335
14336
14337
14338
14339
14340
14341
14342
14343
14344
14345
14346
14347
14348
14349
14350
14351
14352
14353
14354
14355
14356
14357
14358
14359
14360
14361
14362
14363
14364
14365
14366
14367
14368
14369
14370
14371
14372
14373
14374
14375
14376
14377
14378
14379
14380
14381
14382
14383
14384
14385
14386
14387
14388
14389
14390
14391
14392
14393
14394
14395
14396
14397
14398
14399
14400
14401
14402
14403
14404
14405
14406
14407
14408
14409
14410
14411
14412
14413
14414
14415
14416
14417
14418
14419
14420
14421
14422
14423
14424
14425
14426
14427
14428
14429
14430
14431
14432
14433
14434
14435
14436
14437
14438
14439
14440
14441
14442
14443
14444
14445
14446
14447
14448
14449
14450
14451
14452
14453
14454
14455
14456
14457
14458
14459
14460
14461
14462
14463
14464
14465
14466
14467
14468
14469
14470
14471
14472
14473
14474
14475
14476
14477
14478
14479
14480
14481
14482
14483
14484
14485
14486
14487
14488
14489
14490
14491
14492
14493
14494
14495
14496
14497
14498
14499
14500
14501
14502
14503
14504
14505
14506
14507
14508
14509
14510
14511
14512
14513
14514
14515
14516
14517
14518
14519
14520
14521
14522
14523
14524
14525
14526
14527
14528
14529
14530
14531
14532
14533
14534
14535
14536
14537
14538
14539
14540
14541
14542
14543
14544
14545
14546
14547
14548
14549
14550
14551
14552
14553
14554
14555
14556
14557
14558
14559
14560
14561
14562
14563
14564
14565
14566
14567
14568
14569
14570
14571
14572
14573
14574
14575
14576
14577
14578
14579
14580
14581
14582
14583
14584
14585
14586
14587
14588
14589
14590
14591
14592
14593
14594
14595
14596
14597
14598
14599
14600
14601
14602
14603
14604
14605
14606
14607
14608
14609
14610
14611
14612
14613
14614
14615
14616
14617
14618
14619
14620
14621
14622
14623
14624
14625
14626
14627
14628
14629
14630
14631
14632
14633
14634
14635
14636
14637
14638
14639
14640
14641
14642
14643
14644
14645
14646
14647
14648
14649
14650
14651
14652
14653
14654
14655
14656
14657
14658
14659
14660
14661
14662
14663
14664
14665
14666
14667
14668
14669
14670
14671
14672
14673
14674
14675
14676
14677
14678
14679
14680
14681
14682
14683
14684
14685
14686
14687
14688
14689
14690
14691
14692
14693
14694
14695
14696
14697
14698
14699
14700
14701
14702
14703
14704
14705
14706
14707
14708
14709
14710
14711
14712
14713
14714
14715
14716
14717
14718
14719
14720
14721
14722
14723
14724
14725
14726
14727
14728
14729
14730
14731
14732
14733
14734
14735
14736
14737
14738
14739
14740
14741
14742
14743
14744
14745
14746
14747
14748
14749
14750
14751
14752
14753
14754
14755
14756
14757
14758
14759
14760
14761
14762
14763
14764
14765
14766
14767
14768
14769
14770
14771
14772
14773
14774
14775
14776
14777
14778
14779
14780
14781
14782
14783
14784
14785
14786
14787
14788
14789
14790
14791
14792
14793
14794
14795
14796
14797
14798
14799
14800
14801
14802
14803
14804
14805
14806
14807
14808
14809
14810
14811
14812
14813
14814
14815
14816
14817
14818
14819
14820
14821
14822
14823
14824
14825
14826
14827
14828
14829
14830
14831
14832
14833
14834
14835
14836
14837
14838
14839
14840
14841
14842
14843
14844
14845
14846
14847
14848
14849
14850
14851
14852
14853
14854
14855
14856
14857
14858
14859
14860
14861
14862
14863
14864
14865
14866
14867
14868
14869
14870
14871
14872
14873
14874
14875
14876
14877
14878
14879
14880
14881
14882
14883
14884
14885
14886
14887
14888
14889
14890
14891
14892
14893
14894
14895
14896
14897
14898
14899
14900
14901
14902
14903
14904
14905
14906
14907
14908
14909
14910
14911
14912
14913
14914
14915
14916
14917
14918
14919
14920
14921
14922
14923
14924
14925
14926
14927
14928
14929
14930
14931
14932
14933
14934
14935
14936
14937
14938
14939
14940
14941
14942
14943
14944
14945
14946
14947
14948
14949
14950
14951
14952
14953
14954
14955
14956
14957
14958
14959
14960
14961
14962
14963
14964
14965
14966
14967
14968
14969
14970
14971
14972
14973
14974
14975
14976
14977
14978
14979
14980
14981
14982
14983
14984
14985
14986
14987
14988
14989
14990
14991
14992
14993
14994
14995
14996
14997
14998
14999
15000
15001
15002
15003
15004
15005
15006
15007
15008
15009
15010
15011
15012
15013
15014
15015
15016
15017
15018
15019
15020
15021
15022
15023
15024
15025
15026
15027
15028
15029
15030
15031
15032
15033
15034
15035
15036
15037
15038
15039
15040
15041
15042
15043
15044
15045
15046
15047
15048
15049
15050
15051
15052
15053
15054
15055
15056
15057
15058
15059
15060
15061
15062
15063
15064
15065
15066
15067
15068
15069
15070
15071
15072
15073
15074
15075
15076
15077
15078
15079
15080
15081
15082
15083
15084
15085
15086
15087
15088
15089
15090
15091
15092
15093
15094
15095
15096
15097
15098
15099
15100
15101
15102
15103
15104
15105
15106
15107
15108
15109
15110
15111
15112
15113
15114
15115
15116
15117
15118
15119
15120
15121
15122
15123
15124
15125
15126
15127
15128
15129
15130
15131
15132
15133
15134
15135
15136
15137
15138
15139
15140
15141
15142
15143
15144
15145
15146
15147
15148
15149
15150
15151
15152
15153
15154
15155
15156
15157
15158
15159
15160
15161
15162
15163
15164
15165
15166
15167
15168
15169
15170
15171
15172
15173
15174
15175
15176
15177
15178
15179
15180
15181
15182
15183
15184
15185
15186
15187
15188
15189
15190
15191
15192
15193
15194
15195
15196
15197
15198
15199
15200
15201
15202
15203
15204
15205
15206
15207
15208
15209
15210
15211
15212
15213
15214
15215
15216
15217
15218
15219
15220
15221
15222
15223
15224
15225
15226
15227
15228
15229
15230
15231
15232
15233
15234
15235
15236
15237
15238
15239
15240
15241
15242
15243
15244
15245
15246
15247
15248
15249
15250
15251
15252
15253
15254
15255
15256
15257
15258
15259
15260
15261
15262
15263
15264
15265
15266
15267
15268
15269
15270
15271
15272
15273
15274
15275
15276
15277
15278
15279
15280
15281
15282
15283
15284
15285
15286
15287
15288
15289
15290
15291
15292
15293
15294
15295
15296
15297
15298
15299
15300
15301
15302
15303
15304
15305
15306
15307
15308
15309
15310
15311
15312
15313
15314
15315
15316
15317
15318
15319
15320
15321
15322
15323
15324
15325
15326
15327
15328
15329
15330
15331
15332
15333
15334
15335
15336
15337
15338
15339
15340
15341
15342
15343
15344
15345
15346
15347
15348
15349
15350
15351
15352
15353
15354
15355
15356
15357
15358
15359
15360
15361
15362
15363
15364
15365
15366
15367
15368
15369
15370
15371
15372
15373
15374
15375
15376
15377
15378
15379
15380
15381
15382
15383
15384
15385
15386
15387
15388
15389
15390
15391
15392
15393
15394
15395
15396
15397
15398
15399
15400
15401
15402
15403
15404
15405
15406
15407
15408
15409
15410
15411
15412
15413
15414
15415
15416
15417
15418
15419
15420
15421
15422
15423
15424
15425
15426
15427
15428
15429
15430
15431
15432
15433
15434
15435
15436
15437
15438
15439
15440
15441
15442
15443
15444
15445
15446
15447
15448
15449
15450
15451
15452
15453
15454
15455
15456
15457
15458
15459
15460
15461
15462
15463
15464
15465
15466
15467
15468
15469
15470
15471
15472
15473
15474
15475
15476
15477
15478
15479
15480
15481
15482
15483
15484
15485
15486
15487
15488
15489
15490
15491
15492
15493
15494
15495
15496
15497
15498
15499
15500
15501
15502
15503
15504
15505
15506
15507
15508
15509
15510
15511
15512
15513
15514
15515
15516
15517
15518
15519
15520
15521
15522
15523
15524
15525
15526
15527
15528
15529
15530
15531
15532
15533
15534
15535
15536
15537
15538
15539
15540
15541
15542
15543
15544
15545
15546
15547
15548
15549
15550
15551
15552
15553
15554
15555
15556
15557
15558
15559
15560
15561
15562
15563
15564
15565
15566
15567
15568
15569
15570
15571
15572
15573
15574
15575
15576
15577
15578
15579
15580
15581
15582
15583
15584
15585
15586
15587
15588
15589
15590
15591
15592
15593
15594
15595
15596
15597
15598
15599
15600
15601
15602
15603
15604
15605
15606
15607
15608
15609
15610
15611
15612
15613
15614
15615
15616
15617
15618
15619
15620
15621
15622
15623
15624
15625
15626
15627
15628
15629
15630
15631
15632
15633
15634
15635
15636
15637
15638
15639
15640
15641
15642
15643
15644
15645
15646
15647
15648
15649
15650
15651
15652
15653
15654
15655
15656
15657
15658
15659
15660
15661
15662
15663
15664
15665
15666
15667
15668
15669
15670
15671
15672
15673
15674
15675
15676
15677
15678
15679
15680
15681
15682
15683
15684
15685
15686
15687
15688
15689
15690
15691
15692
15693
15694
15695
15696
15697
15698
15699
15700
15701
15702
15703
15704
15705
15706
15707
15708
15709
15710
15711
15712
15713
15714
15715
15716
15717
15718
15719
15720
15721
15722
15723
15724
15725
15726
15727
15728
15729
15730
15731
15732
15733
15734
15735
15736
15737
15738
15739
15740
15741
15742
15743
15744
15745
15746
15747
15748
15749
15750
15751
15752
15753
15754
15755
15756
15757
15758
15759
15760
15761
15762
15763
15764
15765
15766
15767
15768
15769
15770
15771
15772
15773
15774
15775
15776
15777
15778
15779
15780
15781
15782
15783
15784
15785
15786
15787
15788
15789
15790
15791
15792
15793
15794
15795
15796
15797
15798
15799
15800
15801
15802
15803
15804
15805
15806
15807
15808
15809
15810
15811
15812
15813
15814
15815
15816
15817
15818
15819
15820
15821
15822
15823
15824
15825
15826
15827
15828
15829
15830
15831
15832
15833
15834
15835
15836
15837
15838
15839
15840
15841
15842
15843
15844
15845
15846
15847
15848
15849
15850
15851
15852
15853
15854
15855
15856
15857
15858
15859
15860
15861
15862
15863
15864
15865
15866
15867
15868
15869
15870
15871
15872
15873
15874
15875
15876
15877
15878
15879
15880
15881
15882
15883
15884
15885
15886
15887
15888
15889
15890
15891
15892
15893
15894
15895
15896
15897
15898
15899
15900
15901
15902
15903
15904
15905
15906
15907
15908
15909
15910
15911
15912
15913
15914
15915
15916
15917
15918
15919
15920
15921
15922
15923
15924
15925
15926
15927
15928
15929
15930
15931
15932
15933
15934
15935
15936
15937
15938
15939
15940
15941
15942
15943
15944
15945
15946
15947
15948
15949
15950
15951
15952
15953
15954
15955
15956
15957
15958
15959
15960
15961
15962
15963
15964
15965
15966
15967
15968
15969
15970
15971
15972
15973
15974
15975
15976
15977
15978
15979
15980
15981
15982
15983
15984
15985
15986
15987
15988
15989
15990
15991
15992
15993
15994
15995
15996
15997
15998
15999
16000
16001
16002
16003
16004
16005
16006
16007
16008
16009
16010
16011
16012
16013
16014
16015
16016
16017
16018
16019
16020
16021
16022
16023
16024
16025
16026
16027
16028
16029
16030
16031
16032
16033
16034
16035
16036
16037
16038
16039
16040
16041
16042
16043
16044
16045
16046
16047
16048
16049
16050
16051
16052
16053
16054
16055
16056
16057
16058
16059
16060
16061
16062
16063
16064
16065
16066
16067
16068
16069
16070
16071
16072
16073
16074
16075
16076
16077
16078
16079
16080
16081
16082
16083
16084
16085
16086
16087
16088
16089
16090
16091
16092
16093
16094
16095
16096
16097
16098
16099
16100
16101
16102
16103
16104
16105
16106
16107
16108
16109
16110
16111
16112
16113
16114
16115
16116
16117
16118
16119
16120
16121
16122
16123
16124
16125
16126
16127
16128
16129
16130
16131
16132
16133
16134
16135
16136
16137
16138
16139
16140
16141
16142
16143
16144
16145
16146
16147
16148
16149
16150
16151
16152
16153
16154
16155
16156
16157
16158
16159
16160
16161
16162
16163
16164
16165
16166
16167
16168
16169
16170
16171
16172
16173
16174
16175
16176
16177
16178
16179
16180
16181
16182
16183
16184
16185
16186
16187
16188
16189
16190
16191
16192
16193
16194
16195
16196
16197
16198
16199
16200
16201
16202
16203
16204
16205
16206
16207
16208
16209
16210
16211
16212
16213
16214
16215
16216
16217
16218
16219
16220
16221
16222
16223
16224
16225
16226
16227
16228
16229
16230
16231
16232
16233
16234
16235
16236
16237
16238
16239
16240
16241
16242
16243
16244
16245
16246
16247
16248
16249
16250
16251
16252
16253
16254
16255
16256
16257
16258
16259
16260
16261
16262
16263
16264
16265
16266
16267
16268
16269
16270
16271
16272
16273
16274
16275
16276
16277
16278
16279
16280
16281
16282
16283
16284
16285
16286
16287
16288
16289
16290
16291
16292
16293
16294
16295
16296
16297
16298
16299
16300
16301
16302
16303
16304
16305
16306
16307
16308
16309
16310
16311
16312
16313
16314
16315
16316
16317
16318
16319
16320
16321
16322
16323
16324
16325
16326
16327
16328
16329
16330
16331
16332
16333
16334
16335
16336
16337
16338
16339
16340
16341
16342
16343
16344
16345
16346
16347
16348
16349
16350
16351
16352
16353
16354
16355
16356
16357
16358
16359
16360
16361
16362
16363
16364
16365
16366
16367
16368
16369
16370
16371
16372
16373
16374
16375
16376
16377
16378
16379
16380
16381
16382
16383
16384
16385
16386
16387
16388
16389
16390
16391
16392
16393
16394
16395
16396
16397
16398
16399
16400
16401
16402
16403
16404
16405
16406
16407
16408
16409
16410
16411
16412
16413
16414
16415
16416
16417
16418
16419
16420
16421
16422
16423
16424
16425
16426
16427
16428
16429
16430
16431
16432
16433
16434
16435
16436
16437
16438
16439
16440
16441
16442
16443
16444
16445
16446
16447
16448
16449
16450
16451
16452
16453
16454
16455
16456
16457
16458
16459
16460
16461
16462
16463
16464
16465
16466
16467
16468
16469
16470
16471
16472
16473
16474
16475
16476
16477
16478
16479
16480
16481
16482
16483
16484
16485
16486
16487
16488
16489
16490
16491
16492
16493
16494
16495
16496
16497
16498
16499
16500
16501
16502
16503
16504
16505
16506
16507
16508
16509
16510
16511
16512
16513
16514
16515
16516
16517
16518
16519
16520
16521
16522
16523
16524
16525
16526
16527
16528
16529
16530
16531
16532
16533
16534
16535
16536
16537
16538
16539
16540
16541
16542
16543
16544
16545
16546
16547
16548
16549
16550
16551
16552
16553
16554
16555
16556
16557
16558
16559
16560
16561
16562
16563
16564
16565
16566
16567
16568
16569
16570
16571
16572
16573
16574
16575
16576
16577
16578
16579
16580
16581
16582
16583
16584
16585
16586
16587
16588
16589
16590
16591
16592
16593
16594
16595
16596
16597
16598
16599
16600
16601
16602
16603
16604
16605
16606
16607
16608
16609
16610
16611
16612
16613
16614
16615
16616
16617
16618
16619
16620
16621
16622
16623
16624
16625
16626
16627
16628
16629
16630
16631
16632
16633
16634
16635
16636
16637
16638
16639
16640
16641
16642
16643
16644
16645
16646
16647
16648
16649
16650
16651
16652
16653
16654
16655
16656
16657
16658
16659
16660
16661
16662
16663
16664
16665
16666
16667
16668
16669
16670
16671
16672
16673
16674
16675
16676
16677
16678
16679
16680
16681
16682
16683
16684
16685
16686
16687
16688
16689
16690
16691
16692
16693
16694
16695
16696
16697
16698
16699
16700
16701
16702
16703
16704
16705
16706
16707
16708
16709
16710
16711
16712
16713
16714
16715
16716
16717
16718
16719
16720
16721
16722
16723
16724
16725
16726
16727
16728
16729
16730
16731
16732
16733
16734
16735
16736
16737
16738
16739
16740
16741
16742
16743
16744
16745
16746
16747
16748
16749
16750
16751
16752
16753
16754
16755
16756
16757
16758
16759
16760
16761
16762
16763
16764
16765
16766
16767
16768
16769
16770
16771
16772
16773
16774
16775
16776
16777
16778
16779
16780
16781
16782
16783
16784
16785
16786
16787
16788
16789
16790
16791
16792
16793
16794
16795
16796
16797
16798
16799
16800
16801
16802
16803
16804
16805
16806
16807
16808
16809
16810
16811
16812
16813
16814
16815
16816
16817
16818
16819
16820
16821
16822
16823
16824
16825
16826
16827
16828
16829
16830
16831
16832
16833
16834
16835
16836
16837
16838
16839
16840
16841
16842
16843
16844
16845
16846
16847
16848
16849
16850
16851
16852
16853
16854
16855
16856
16857
16858
16859
16860
16861
16862
16863
16864
16865
16866
16867
16868
16869
16870
16871
16872
16873
16874
16875
16876
16877
16878
16879
16880
16881
16882
16883
16884
16885
16886
16887
16888
16889
16890
16891
16892
16893
16894
16895
16896
16897
16898
16899
16900
16901
16902
16903
16904
16905
16906
16907
16908
16909
16910
16911
16912
16913
16914
16915
16916
16917
16918
16919
16920
16921
16922
16923
16924
16925
16926
16927
16928
16929
16930
16931
16932
16933
16934
16935
16936
16937
16938
16939
16940
16941
16942
16943
16944
16945
16946
16947
16948
16949
16950
16951
16952
16953
16954
16955
16956
16957
16958
16959
16960
16961
16962
16963
16964
16965
16966
16967
16968
16969
16970
16971
16972
16973
16974
16975
16976
16977
16978
16979
16980
16981
16982
16983
16984
16985
16986
16987
16988
16989
16990
16991
16992
16993
16994
16995
16996
16997
16998
16999
17000
17001
17002
17003
17004
17005
17006
17007
17008
17009
17010
17011
17012
17013
17014
17015
17016
17017
17018
17019
17020
17021
17022
17023
17024
17025
17026
17027
17028
17029
17030
17031
17032
17033
17034
17035
17036
17037
17038
17039
17040
17041
17042
17043
17044
17045
17046
17047
17048
17049
17050
17051
17052
17053
17054
17055
17056
17057
17058
17059
17060
17061
17062
17063
17064
17065
17066
17067
17068
17069
17070
17071
17072
17073
17074
17075
17076
17077
17078
17079
17080
17081
17082
17083
17084
17085
17086
17087
17088
17089
17090
17091
17092
17093
17094
17095
17096
17097
17098
17099
17100
17101
17102
17103
17104
17105
17106
17107
17108
17109
17110
17111
17112
17113
17114
17115
17116
17117
17118
17119
17120
17121
17122
17123
17124
17125
17126
17127
17128
17129
17130
17131
17132
17133
17134
17135
17136
17137
17138
17139
17140
17141
17142
17143
17144
17145
17146
17147
17148
17149
17150
17151
17152
17153
17154
17155
17156
17157
17158
17159
17160
17161
17162
17163
17164
17165
17166
17167
17168
17169
17170
17171
17172
17173
17174
17175
17176
17177
17178
17179
17180
17181
17182
17183
17184
17185
17186
17187
17188
17189
17190
17191
17192
17193
17194
17195
17196
17197
17198
17199
17200
17201
17202
17203
17204
17205
17206
17207
17208
17209
17210
17211
17212
17213
17214
17215
17216
17217
17218
17219
17220
17221
17222
17223
17224
17225
17226
17227
17228
17229
17230
17231
17232
17233
17234
17235
17236
17237
17238
17239
17240
17241
17242
17243
17244
17245
17246
17247
17248
17249
17250
17251
17252
17253
17254
17255
17256
17257
17258
17259
17260
17261
17262
17263
17264
17265
17266
17267
17268
17269
17270
17271
17272
17273
17274
17275
17276
17277
17278
17279
17280
17281
17282
17283
17284
17285
17286
17287
17288
17289
17290
17291
17292
17293
17294
17295
17296
17297
17298
17299
17300
17301
17302
17303
17304
17305
17306
17307
17308
17309
17310
17311
17312
17313
17314
17315
17316
17317
17318
17319
17320
17321
17322
17323
17324
17325
17326
17327
17328
17329
17330
17331
17332
17333
17334
17335
17336
17337
17338
17339
17340
17341
17342
17343
17344
17345
17346
17347
17348
17349
17350
17351
17352
17353
17354
17355
17356
17357
17358
17359
17360
17361
17362
17363
17364
17365
17366
17367
17368
17369
17370
17371
17372
17373
17374
17375
17376
17377
17378
17379
17380
17381
17382
17383
17384
17385
17386
17387
17388
17389
17390
17391
17392
17393
17394
17395
17396
17397
17398
17399
17400
17401
17402
17403
17404
17405
17406
17407
17408
17409
17410
17411
17412
17413
17414
17415
17416
17417
17418
17419
17420
17421
17422
17423
17424
17425
17426
17427
17428
17429
17430
17431
17432
17433
17434
17435
17436
17437
17438
17439
17440
17441
17442
17443
17444
17445
17446
17447
17448
17449
17450
17451
17452
17453
17454
17455
17456
17457
17458
17459
17460
17461
17462
17463
17464
17465
17466
17467
17468
17469
17470
17471
17472
17473
17474
17475
17476
17477
17478
17479
17480
17481
17482
17483
17484
17485
17486
17487
17488
17489
17490
17491
17492
17493
17494
17495
17496
17497
17498
17499
17500
17501
17502
17503
17504
17505
17506
17507
17508
17509
17510
17511
17512
17513
17514
17515
17516
17517
17518
17519
17520
17521
17522
17523
17524
17525
17526
17527
17528
17529
17530
17531
17532
17533
17534
17535
17536
17537
17538
17539
17540
17541
17542
17543
17544
17545
17546
17547
17548
17549
17550
17551
17552
17553
17554
17555
17556
17557
17558
17559
17560
17561
17562
17563
17564
17565
17566
17567
17568
17569
17570
17571
17572
17573
17574
17575
17576
17577
17578
17579
17580
17581
17582
17583
17584
17585
17586
17587
17588
17589
17590
17591
17592
17593
17594
17595
17596
17597
17598
17599
17600
17601
17602
17603
17604
17605
17606
17607
17608
17609
17610
17611
17612
17613
17614
17615
17616
17617
17618
17619
17620
17621
17622
17623
17624
17625
17626
17627
17628
17629
17630
17631
17632
17633
17634
17635
17636
17637
17638
17639
17640
17641
17642
17643
17644
17645
17646
17647
17648
17649
17650
17651
17652
17653
17654
17655
17656
17657
17658
17659
17660
17661
17662
17663
17664
17665
17666
17667
17668
17669
17670
17671
17672
17673
17674
17675
17676
17677
17678
17679
17680
17681
17682
17683
17684
17685
17686
17687
17688
17689
17690
17691
17692
17693
17694
17695
17696
17697
17698
17699
17700
17701
17702
17703
17704
17705
17706
17707
17708
17709
17710
17711
17712
17713
17714
17715
17716
17717
17718
17719
17720
17721
17722
17723
17724
17725
17726
17727
17728
17729
17730
17731
17732
17733
17734
17735
17736
17737
17738
17739
17740
17741
17742
17743
17744
17745
17746
17747
17748
17749
17750
17751
17752
17753
17754
17755
17756
17757
17758
17759
17760
17761
17762
17763
17764
17765
17766
17767
17768
17769
17770
17771
17772
17773
17774
17775
17776
17777
17778
17779
17780
17781
17782
17783
17784
17785
17786
17787
17788
17789
17790
17791
17792
17793
17794
17795
17796
17797
17798
17799
17800
17801
17802
17803
17804
17805
17806
17807
17808
17809
17810
17811
17812
17813
17814
17815
17816
17817
17818
17819
17820
17821
17822
17823
17824
17825
17826
17827
17828
17829
17830
17831
17832
17833
17834
17835
17836
17837
17838
17839
17840
17841
17842
17843
17844
17845
17846
17847
17848
17849
17850
17851
17852
17853
17854
17855
17856
17857
17858
17859
17860
17861
17862
17863
17864
17865
17866
17867
17868
17869
17870
17871
17872
17873
17874
17875
17876
17877
17878
17879
17880
17881
17882
17883
17884
17885
17886
17887
17888
17889
17890
17891
17892
17893
17894
17895
17896
17897
17898
17899
17900
17901
17902
17903
17904
17905
17906
17907
17908
17909
17910
17911
17912
17913
17914
17915
17916
17917
17918
17919
17920
17921
17922
17923
17924
17925
17926
17927
17928
17929
17930
17931
17932
17933
17934
17935
17936
17937
17938
17939
17940
17941
17942
17943
17944
17945
17946
17947
17948
17949
17950
17951
17952
17953
17954
17955
17956
17957
17958
17959
17960
17961
17962
17963
17964
17965
17966
17967
17968
17969
17970
17971
17972
17973
17974
17975
17976
17977
17978
17979
17980
17981
17982
17983
17984
17985
17986
17987
17988
17989
17990
17991
17992
17993
17994
17995
17996
17997
17998
17999
18000
18001
18002
18003
18004
18005
18006
18007
18008
18009
18010
18011
18012
18013
18014
18015
18016
18017
18018
18019
18020
18021
18022
18023
18024
18025
18026
18027
18028
18029
18030
18031
18032
18033
18034
18035
18036
18037
18038
18039
18040
18041
18042
18043
18044
18045
18046
18047
18048
18049
18050
18051
18052
18053
18054
18055
18056
18057
18058
18059
18060
18061
18062
18063
18064
18065
18066
18067
18068
18069
18070
18071
18072
18073
18074
18075
18076
18077
18078
18079
18080
18081
18082
18083
18084
18085
18086
18087
18088
18089
18090
18091
18092
18093
18094
18095
18096
18097
18098
18099
18100
18101
18102
18103
18104
18105
18106
18107
18108
18109
18110
18111
18112
18113
18114
18115
18116
18117
18118
18119
18120
18121
18122
18123
18124
18125
18126
18127
18128
18129
18130
18131
18132
18133
18134
18135
18136
18137
18138
18139
18140
18141
18142
18143
18144
18145
18146
18147
18148
18149
18150
18151
18152
18153
18154
18155
18156
18157
18158
18159
18160
18161
18162
18163
18164
18165
18166
18167
18168
18169
18170
18171
18172
18173
18174
18175
18176
18177
18178
18179
18180
18181
18182
18183
18184
18185
18186
18187
18188
18189
18190
18191
18192
18193
18194
18195
18196
18197
18198
18199
18200
18201
18202
18203
18204
18205
18206
18207
18208
18209
18210
18211
18212
18213
18214
18215
18216
18217
18218
18219
18220
18221
18222
18223
18224
18225
18226
18227
18228
18229
18230
18231
18232
18233
18234
18235
18236
18237
18238
18239
18240
18241
18242
18243
18244
18245
18246
18247
18248
18249
18250
18251
18252
18253
18254
18255
18256
18257
18258
18259
18260
18261
18262
18263
18264
18265
18266
18267
18268
18269
18270
18271
18272
18273
18274
18275
18276
18277
18278
18279
18280
18281
18282
18283
18284
18285
18286
18287
18288
18289
18290
18291
18292
18293
18294
18295
18296
18297
18298
18299
18300
18301
18302
18303
18304
18305
18306
18307
18308
18309
18310
18311
18312
18313
18314
18315
18316
18317
18318
18319
18320
18321
18322
18323
18324
18325
18326
18327
18328
18329
18330
18331
18332
18333
18334
18335
18336
18337
18338
18339
18340
18341
18342
18343
18344
18345
18346
18347
18348
18349
18350
18351
18352
18353
18354
18355
18356
18357
18358
18359
18360
18361
18362
18363
18364
18365
18366
18367
18368
18369
18370
18371
18372
18373
18374
18375
18376
18377
18378
18379
18380
18381
18382
18383
18384
18385
18386
18387
18388
18389
18390
18391
18392
18393
18394
18395
18396
18397
18398
18399
18400
18401
18402
18403
18404
18405
18406
18407
18408
18409
18410
18411
18412
18413
18414
18415
18416
18417
18418
18419
18420
18421
18422
18423
18424
18425
18426
18427
18428
18429
18430
18431
18432
18433
18434
18435
18436
18437
18438
18439
18440
18441
18442
18443
18444
18445
18446
18447
18448
18449
18450
18451
18452
18453
18454
18455
18456
18457
18458
18459
18460
18461
18462
18463
18464
18465
18466
18467
18468
18469
18470
18471
18472
18473
18474
18475
18476
18477
18478
18479
18480
18481
18482
18483
18484
18485
18486
18487
18488
18489
18490
18491
18492
18493
18494
18495
18496
18497
18498
18499
18500
18501
18502
18503
18504
18505
18506
18507
18508
18509
18510
18511
18512
18513
18514
18515
18516
18517
18518
18519
18520
18521
18522
18523
18524
18525
18526
18527
18528
18529
18530
18531
18532
18533
18534
18535
18536
18537
18538
18539
18540
18541
18542
18543
18544
18545
18546
18547
18548
18549
18550
18551
18552
18553
18554
18555
18556
18557
18558
18559
18560
18561
18562
18563
18564
18565
18566
18567
18568
18569
18570
18571
18572
18573
18574
18575
18576
18577
18578
18579
18580
18581
18582
18583
18584
18585
18586
18587
18588
18589
18590
18591
18592
18593
18594
18595
18596
18597
18598
18599
18600
18601
18602
18603
18604
18605
18606
18607
18608
18609
18610
18611
18612
18613
18614
18615
18616
18617
18618
18619
18620
18621
18622
18623
18624
18625
18626
18627
18628
18629
18630
18631
18632
18633
18634
18635
18636
18637
18638
18639
18640
18641
18642
18643
18644
18645
18646
18647
18648
18649
18650
18651
18652
18653
18654
18655
18656
18657
18658
18659
18660
18661
18662
18663
18664
18665
18666
18667
18668
18669
18670
18671
18672
18673
18674
18675
18676
18677
18678
18679
18680
18681
18682
18683
18684
18685
18686
18687
18688
18689
18690
18691
18692
18693
18694
18695
18696
18697
18698
18699
18700
18701
18702
18703
18704
18705
18706
18707
18708
18709
18710
18711
18712
18713
18714
18715
18716
18717
18718
18719
18720
18721
18722
18723
18724
18725
18726
18727
18728
18729
18730
18731
18732
18733
18734
18735
18736
18737
18738
18739
18740
18741
18742
18743
18744
18745
18746
18747
18748
18749
18750
18751
18752
18753
18754
18755
18756
18757
18758
18759
18760
18761
18762
18763
18764
18765
18766
18767
18768
18769
18770
18771
18772
18773
18774
18775
18776
18777
18778
18779
18780
18781
18782
18783
18784
18785
18786
18787
18788
18789
18790
18791
18792
18793
18794
18795
18796
18797
18798
18799
18800
18801
18802
18803
18804
18805
18806
18807
18808
18809
18810
18811
18812
18813
18814
18815
18816
18817
18818
18819
18820
18821
18822
18823
18824
18825
18826
18827
18828
18829
18830
18831
18832
18833
18834
18835
18836
18837
18838
18839
18840
18841
18842
18843
18844
18845
18846
18847
18848
18849
18850
18851
18852
18853
18854
18855
18856
18857
18858
18859
18860
18861
18862
18863
18864
18865
18866
18867
18868
18869
18870
18871
18872
18873
18874
18875
18876
18877
18878
18879
18880
18881
18882
18883
18884
18885
18886
18887
18888
18889
18890
18891
18892
18893
18894
18895
18896
18897
18898
18899
18900
18901
18902
18903
18904
18905
18906
18907
18908
18909
18910
18911
18912
18913
18914
18915
18916
18917
18918
18919
18920
18921
18922
18923
18924
18925
18926
18927
18928
18929
18930
18931
18932
18933
18934
18935
18936
18937
18938
18939
18940
18941
18942
18943
18944
18945
18946
18947
18948
18949
18950
18951
18952
18953
18954
18955
18956
18957
18958
18959
18960
18961
18962
18963
18964
18965
18966
18967
18968
18969
18970
18971
18972
18973
18974
18975
18976
18977
18978
18979
18980
18981
18982
18983
18984
18985
18986
18987
18988
18989
18990
18991
18992
18993
18994
18995
18996
18997
18998
18999
19000
19001
19002
19003
19004
19005
19006
19007
19008
19009
19010
19011
19012
19013
19014
19015
19016
19017
19018
19019
19020
19021
19022
19023
19024
19025
19026
19027
19028
19029
19030
19031
19032
19033
19034
19035
19036
19037
19038
19039
19040
19041
19042
19043
19044
19045
19046
19047
19048
19049
19050
19051
19052
19053
19054
19055
19056
19057
19058
19059
19060
19061
19062
19063
19064
19065
19066
19067
19068
19069
19070
19071
19072
19073
19074
19075
19076
19077
19078
19079
19080
19081
19082
19083
19084
19085
19086
19087
19088
19089
19090
19091
19092
19093
19094
19095
19096
19097
19098
19099
19100
19101
19102
19103
19104
19105
19106
19107
19108
19109
19110
19111
19112
19113
19114
19115
19116
19117
19118
19119
19120
19121
19122
19123
19124
19125
19126
19127
19128
19129
19130
19131
19132
19133
19134
19135
19136
19137
19138
19139
19140
19141
19142
19143
19144
19145
19146
19147
19148
19149
19150
19151
19152
19153
19154
19155
19156
19157
19158
19159
19160
19161
19162
19163
19164
19165
19166
19167
19168
19169
19170
19171
19172
19173
19174
19175
19176
19177
19178
19179
19180
19181
19182
19183
19184
19185
19186
19187
19188
19189
19190
19191
19192
19193
19194
19195
19196
19197
19198
19199
19200
19201
19202
19203
19204
19205
19206
19207
19208
19209
19210
19211
19212
19213
19214
19215
19216
19217
19218
19219
19220
19221
19222
19223
19224
19225
19226
19227
19228
19229
19230
19231
19232
19233
19234
19235
19236
19237
19238
19239
19240
19241
19242
19243
19244
19245
19246
19247
19248
19249
19250
19251
19252
19253
19254
19255
19256
19257
19258
19259
19260
19261
19262
19263
19264
19265
19266
19267
19268
19269
19270
19271
19272
19273
19274
19275
19276
19277
19278
19279
19280
19281
19282
19283
19284
19285
19286
19287
19288
19289
19290
19291
19292
19293
19294
19295
19296
19297
19298
19299
19300
19301
19302
19303
19304
19305
19306
19307
19308
19309
19310
19311
19312
19313
19314
19315
19316
19317
19318
19319
19320
19321
19322
19323
19324
19325
19326
19327
19328
19329
19330
19331
19332
19333
19334
19335
19336
19337
19338
19339
19340
19341
19342
19343
19344
19345
19346
19347
19348
19349
19350
19351
19352
19353
19354
19355
19356
19357
19358
19359
19360
19361
19362
19363
19364
19365
19366
19367
19368
19369
19370
19371
19372
19373
19374
19375
19376
19377
19378
19379
19380
19381
19382
19383
19384
19385
19386
19387
19388
19389
19390
19391
19392
19393
19394
19395
19396
19397
19398
19399
19400
19401
19402
19403
19404
19405
19406
19407
19408
19409
19410
19411
19412
19413
19414
19415
19416
19417
19418
19419
19420
19421
19422
19423
19424
19425
19426
19427
19428
19429
19430
19431
19432
19433
19434
19435
19436
19437
19438
19439
19440
19441
19442
19443
19444
19445
19446
19447
19448
19449
19450
19451
19452
19453
19454
19455
19456
19457
19458
19459
19460
19461
19462
19463
19464
19465
19466
19467
19468
19469
19470
19471
19472
19473
19474
19475
19476
19477
19478
19479
19480
19481
19482
19483
19484
19485
19486
19487
19488
19489
19490
19491
19492
19493
19494
19495
19496
19497
19498
19499
19500
19501
19502
19503
19504
19505
19506
19507
19508
19509
19510
19511
19512
19513
19514
19515
19516
19517
19518
19519
19520
19521
19522
19523
19524
19525
19526
19527
19528
19529
19530
19531
19532
19533
19534
19535
19536
19537
19538
19539
19540
19541
19542
19543
19544
19545
19546
19547
19548
19549
19550
19551
19552
19553
19554
19555
19556
19557
19558
19559
19560
19561
19562
19563
19564
19565
19566
19567
19568
19569
19570
19571
19572
19573
19574
19575
19576
19577
19578
19579
19580
19581
19582
19583
19584
19585
19586
19587
19588
19589
19590
19591
19592
19593
19594
19595
19596
19597
19598
19599
19600
19601
19602
19603
19604
19605
19606
19607
19608
19609
19610
19611
19612
19613
19614
19615
19616
19617
19618
19619
19620
19621
19622
19623
19624
19625
19626
19627
19628
19629
19630
19631
19632
19633
19634
19635
19636
19637
19638
19639
19640
19641
19642
19643
19644
19645
19646
19647
19648
19649
19650
19651
19652
19653
19654
19655
19656
19657
19658
19659
19660
19661
19662
19663
19664
19665
19666
19667
19668
19669
19670
19671
19672
19673
19674
19675
19676
19677
19678
19679
19680
19681
19682
19683
19684
19685
19686
19687
19688
19689
19690
19691
19692
19693
19694
19695
19696
19697
19698
19699
19700
19701
19702
19703
19704
19705
19706
19707
19708
19709
19710
19711
19712
19713
19714
19715
19716
19717
19718
19719
19720
19721
19722
19723
19724
19725
19726
19727
19728
19729
19730
19731
19732
19733
19734
19735
19736
19737
19738
19739
19740
19741
19742
19743
19744
19745
19746
19747
19748
19749
19750
19751
19752
19753
19754
19755
19756
19757
19758
19759
19760
19761
19762
19763
19764
19765
19766
19767
19768
19769
19770
19771
19772
19773
19774
19775
19776
19777
19778
19779
19780
19781
19782
19783
19784
19785
19786
19787
19788
19789
19790
19791
19792
19793
19794
19795
19796
19797
19798
19799
19800
19801
19802
19803
19804
19805
19806
19807
19808
19809
19810
19811
19812
19813
19814
19815
19816
19817
19818
19819
19820
19821
19822
19823
19824
19825
19826
19827
19828
19829
19830
19831
19832
19833
19834
19835
19836
19837
19838
19839
19840
19841
19842
19843
19844
19845
19846
19847
19848
19849
19850
19851
19852
19853
19854
19855
19856
19857
19858
19859
19860
19861
19862
19863
19864
19865
19866
19867
19868
19869
19870
19871
19872
19873
19874
19875
19876
19877
19878
19879
19880
19881
19882
19883
19884
19885
19886
19887
19888
19889
19890
19891
19892
19893
19894
19895
19896
19897
19898
19899
19900
19901
19902
19903
19904
19905
19906
19907
19908
19909
19910
19911
19912
19913
19914
19915
19916
19917
19918
19919
19920
19921
19922
19923
19924
19925
19926
19927
19928
19929
19930
19931
19932
19933
19934
19935
19936
19937
19938
19939
19940
19941
19942
19943
19944
19945
19946
19947
19948
19949
19950
19951
19952
19953
19954
19955
19956
19957
19958
19959
19960
19961
19962
19963
19964
19965
19966
19967
19968
19969
19970
19971
19972
19973
19974
19975
19976
19977
19978
19979
19980
19981
19982
19983
19984
19985
19986
19987
19988
19989
19990
19991
19992
19993
19994
19995
19996
19997
19998
19999
20000
20001
20002
20003
20004
20005
20006
20007
20008
20009
20010
20011
20012
20013
20014
20015
20016
20017
20018
20019
20020
20021
20022
20023
20024
20025
20026
20027
20028
20029
20030
20031
20032
20033
20034
20035
20036
20037
20038
20039
20040
20041
20042
20043
20044
20045
20046
20047
20048
20049
20050
20051
20052
20053
20054
20055
20056
20057
20058
20059
20060
20061
20062
20063
20064
20065
20066
20067
20068
20069
20070
20071
20072
20073
20074
20075
20076
20077
20078
20079
20080
20081
20082
20083
20084
20085
20086
20087
20088
20089
20090
20091
20092
20093
20094
20095
20096
20097
20098
20099
20100
20101
20102
20103
20104
20105
20106
20107
20108
20109
20110
20111
20112
20113
20114
20115
20116
20117
20118
20119
20120
20121
20122
20123
20124
20125
20126
20127
20128
20129
20130
20131
20132
20133
20134
20135
20136
20137
20138
20139
20140
20141
20142
20143
20144
20145
20146
20147
20148
20149
20150
20151
20152
20153
20154
20155
20156
20157
20158
20159
20160
20161
20162
20163
20164
20165
20166
20167
20168
20169
20170
20171
20172
20173
20174
20175
20176
20177
20178
20179
20180
20181
20182
20183
20184
20185
20186
20187
20188
20189
20190
20191
20192
20193
20194
20195
20196
20197
20198
20199
20200
20201
20202
20203
20204
20205
20206
20207
20208
20209
20210
20211
20212
20213
20214
20215
20216
20217
20218
20219
20220
20221
20222
20223
20224
20225
20226
20227
20228
20229
20230
20231
20232
20233
20234
20235
20236
20237
20238
20239
20240
20241
20242
20243
20244
20245
20246
20247
20248
20249
20250
20251
20252
20253
20254
20255
20256
20257
20258
20259
20260
20261
20262
20263
20264
20265
20266
20267
20268
20269
20270
20271
20272
20273
20274
20275
20276
20277
20278
20279
20280
20281
20282
20283
20284
20285
20286
20287
20288
20289
20290
20291
20292
20293
20294
20295
20296
20297
20298
20299
20300
20301
20302
20303
20304
20305
20306
20307
20308
20309
20310
20311
20312
20313
20314
20315
20316
20317
20318
20319
20320
20321
20322
20323
20324
20325
20326
20327
20328
20329
20330
20331
20332
20333
20334
20335
20336
20337
20338
20339
20340
20341
20342
20343
20344
20345
20346
20347
20348
20349
20350
20351
20352
20353
20354
20355
20356
20357
20358
20359
20360
20361
20362
20363
20364
20365
20366
20367
20368
20369
20370
20371
20372
20373
20374
20375
20376
20377
20378
20379
20380
20381
20382
20383
20384
20385
20386
20387
20388
20389
20390
20391
20392
20393
20394
20395
20396
20397
20398
20399
20400
20401
20402
20403
20404
20405
20406
20407
20408
20409
20410
20411
20412
20413
20414
20415
20416
20417
20418
20419
20420
20421
20422
20423
20424
20425
20426
20427
20428
20429
20430
20431
20432
20433
20434
20435
20436
20437
20438
20439
20440
20441
20442
20443
20444
20445
20446
20447
20448
20449
20450
20451
20452
20453
20454
20455
20456
20457
20458
20459
20460
20461
20462
20463
20464
20465
20466
20467
20468
20469
20470
20471
20472
20473
20474
20475
20476
20477
20478
20479
20480
20481
20482
20483
20484
20485
20486
20487
20488
20489
20490
20491
20492
20493
20494
20495
20496
20497
20498
20499
20500
20501
20502
20503
20504
20505
20506
20507
20508
20509
20510
20511
20512
20513
20514
20515
20516
20517
20518
20519
20520
20521
20522
20523
20524
20525
20526
20527
20528
20529
20530
20531
20532
20533
20534
20535
20536
20537
20538
20539
20540
20541
20542
20543
20544
20545
20546
20547
20548
20549
20550
20551
20552
20553
20554
20555
20556
20557
20558
20559
20560
20561
20562
20563
20564
20565
20566
20567
20568
20569
20570
20571
20572
20573
20574
20575
20576
20577
20578
20579
20580
20581
20582
20583
20584
20585
20586
20587
20588
20589
20590
20591
20592
20593
20594
20595
20596
20597
20598
20599
20600
20601
20602
20603
20604
20605
20606
20607
20608
20609
20610
20611
20612
20613
20614
20615
20616
20617
20618
20619
20620
20621
20622
20623
20624
20625
20626
20627
20628
20629
20630
20631
20632
20633
20634
20635
20636
20637
20638
20639
20640
20641
20642
20643
20644
20645
20646
20647
20648
20649
20650
20651
20652
20653
20654
20655
20656
20657
20658
20659
20660
20661
20662
20663
20664
20665
20666
20667
20668
20669
20670
20671
20672
20673
20674
20675
20676
20677
20678
20679
20680
20681
20682
20683
20684
20685
20686
20687
20688
20689
20690
20691
20692
20693
20694
20695
20696
20697
20698
20699
20700
20701
20702
20703
20704
20705
20706
20707
20708
20709
20710
20711
20712
20713
20714
20715
20716
20717
20718
20719
20720
20721
20722
20723
20724
20725
20726
20727
20728
20729
20730
20731
20732
20733
20734
20735
20736
20737
20738
20739
20740
20741
20742
20743
20744
20745
20746
20747
20748
20749
20750
20751
20752
20753
20754
20755
20756
20757
20758
20759
20760
20761
20762
20763
20764
20765
20766
20767
20768
20769
20770
20771
20772
20773
20774
20775
20776
20777
20778
20779
20780
20781
20782
20783
20784
20785
20786
20787
20788
20789
20790
20791
20792
20793
20794
20795
20796
20797
20798
20799
20800
20801
20802
20803
20804
20805
20806
20807
20808
20809
20810
20811
20812
20813
20814
20815
20816
20817
20818
20819
20820
20821
20822
20823
20824
20825
20826
20827
20828
20829
20830
20831
20832
20833
20834
20835
20836
20837
20838
20839
20840
20841
20842
20843
20844
20845
20846
20847
20848
20849
20850
20851
20852
20853
20854
20855
20856
20857
20858
20859
20860
20861
20862
20863
20864
20865
20866
20867
20868
20869
20870
20871
20872
20873
20874
20875
20876
20877
20878
20879
20880
20881
20882
20883
20884
20885
20886
20887
20888
20889
20890
20891
20892
20893
20894
20895
20896
20897
20898
20899
20900
20901
20902
20903
20904
20905
20906
20907
20908
20909
20910
20911
20912
20913
20914
20915
20916
20917
20918
20919
20920
20921
20922
20923
20924
20925
20926
20927
20928
20929
20930
20931
20932
20933
20934
20935
20936
20937
20938
20939
20940
20941
20942
20943
20944
20945
20946
20947
20948
20949
20950
20951
20952
20953
20954
20955
20956
20957
20958
20959
20960
20961
20962
20963
20964
20965
20966
20967
20968
20969
20970
20971
20972
20973
20974
20975
20976
20977
20978
20979
20980
20981
20982
20983
20984
20985
20986
20987
20988
20989
20990
20991
20992
20993
20994
20995
20996
20997
20998
20999
21000
21001
21002
21003
21004
21005
21006
21007
21008
21009
21010
21011
21012
21013
21014
21015
21016
21017
21018
21019
21020
21021
21022
21023
21024
21025
21026
21027
21028
21029
21030
21031
21032
21033
21034
21035
21036
21037
21038
21039
21040
21041
21042
21043
21044
21045
21046
21047
21048
21049
21050
21051
21052
21053
21054
21055
21056
21057
21058
21059
21060
21061
21062
21063
21064
21065
21066
21067
21068
21069
21070
21071
21072
21073
21074
21075
21076
21077
21078
21079
21080
21081
21082
21083
21084
21085
21086
21087
21088
21089
21090
21091
21092
21093
21094
21095
21096
21097
21098
21099
21100
21101
21102
21103
21104
21105
21106
21107
21108
21109
21110
21111
21112
21113
21114
21115
21116
21117
21118
21119
21120
21121
21122
21123
21124
21125
21126
21127
21128
21129
21130
21131
21132
21133
21134
21135
21136
21137
21138
21139
21140
21141
21142
21143
21144
21145
21146
21147
21148
21149
21150
21151
21152
21153
21154
21155
21156
21157
21158
21159
21160
21161
21162
21163
21164
21165
21166
21167
21168
21169
21170
21171
21172
21173
21174
21175
21176
21177
21178
21179
21180
21181
21182
21183
21184
21185
21186
21187
21188
21189
21190
21191
21192
21193
21194
21195
21196
21197
21198
21199
21200
21201
21202
21203
21204
21205
21206
21207
21208
21209
21210
21211
21212
21213
21214
21215
21216
21217
21218
21219
21220
21221
21222
21223
21224
21225
21226
21227
21228
21229
21230
21231
21232
21233
21234
21235
21236
21237
21238
21239
21240
21241
21242
21243
21244
21245
21246
21247
21248
21249
21250
21251
21252
21253
21254
21255
21256
21257
21258
21259
21260
21261
21262
21263
21264
21265
21266
21267
21268
21269
21270
21271
21272
21273
21274
21275
21276
21277
21278
21279
21280
21281
21282
21283
21284
21285
21286
21287
21288
21289
21290
21291
21292
21293
21294
21295
21296
21297
21298
21299
21300
21301
21302
21303
21304
21305
21306
21307
21308
21309
21310
21311
21312
21313
21314
21315
21316
21317
21318
21319
21320
21321
21322
21323
21324
21325
21326
21327
21328
21329
21330
21331
21332
21333
21334
21335
21336
21337
21338
21339
21340
21341
21342
21343
21344
21345
21346
21347
21348
21349
21350
21351
21352
21353
21354
21355
21356
21357
21358
21359
21360
21361
21362
21363
21364
21365
21366
21367
21368
21369
21370
21371
21372
21373
21374
21375
21376
21377
21378
21379
21380
21381
21382
21383
21384
21385
21386
21387
21388
21389
21390
21391
21392
21393
21394
21395
21396
21397
21398
21399
21400
21401
21402
21403
21404
21405
21406
21407
21408
21409
21410
21411
21412
21413
21414
21415
21416
21417
21418
21419
21420
21421
21422
21423
21424
21425
21426
21427
21428
21429
21430
21431
21432
21433
21434
21435
21436
21437
21438
21439
21440
21441
21442
21443
21444
21445
21446
21447
21448
21449
21450
21451
21452
21453
21454
21455
21456
21457
21458
21459
21460
21461
21462
21463
21464
21465
21466
21467
21468
21469
21470
21471
21472
21473
21474
21475
21476
21477
21478
21479
21480
21481
21482
21483
21484
21485
21486
21487
21488
21489
21490
21491
21492
21493
21494
21495
21496
21497
21498
21499
21500
21501
21502
21503
21504
21505
21506
21507
21508
21509
21510
21511
21512
21513
21514
21515
21516
21517
21518
21519
21520
21521
21522
21523
21524
21525
21526
21527
21528
21529
21530
21531
21532
21533
21534
21535
21536
21537
21538
21539
21540
21541
21542
21543
21544
21545
21546
21547
21548
21549
21550
21551
21552
21553
21554
21555
21556
21557
21558
21559
21560
21561
21562
21563
21564
21565
21566
21567
21568
21569
21570
21571
21572
21573
21574
21575
21576
21577
21578
21579
21580
21581
21582
21583
21584
21585
21586
21587
21588
21589
21590
21591
21592
21593
21594
21595
21596
21597
21598
21599
21600
21601
21602
21603
21604
21605
21606
21607
21608
21609
21610
21611
21612
21613
21614
21615
21616
21617
21618
21619
21620
21621
21622
21623
21624
21625
21626
21627
21628
21629
21630
21631
21632
21633
21634
21635
21636
21637
21638
21639
21640
21641
21642
21643
21644
21645
21646
21647
21648
21649
21650
21651
21652
21653
21654
21655
21656
21657
21658
21659
21660
21661
21662
21663
21664
21665
21666
21667
21668
21669
21670
21671
21672
21673
21674
21675
21676
21677
21678
21679
21680
21681
21682
21683
21684
21685
21686
21687
21688
21689
21690
21691
21692
21693
21694
21695
21696
21697
21698
21699
21700
21701
21702
21703
21704
21705
21706
21707
21708
21709
21710
21711
21712
21713
21714
21715
21716
21717
21718
21719
21720
21721
21722
21723
21724
21725
21726
21727
21728
21729
21730
21731
21732
21733
21734
21735
21736
21737
21738
21739
21740
21741
21742
21743
21744
21745
21746
21747
21748
21749
21750
21751
21752
21753
21754
21755
21756
21757
21758
21759
21760
21761
21762
21763
21764
21765
21766
21767
21768
21769
21770
21771
21772
21773
21774
21775
21776
21777
21778
21779
21780
21781
21782
21783
21784
21785
21786
21787
21788
21789
21790
21791
21792
21793
21794
21795
21796
21797
21798
21799
21800
21801
21802
21803
21804
21805
21806
21807
21808
21809
21810
21811
21812
21813
21814
21815
21816
21817
21818
21819
21820
21821
21822
21823
21824
21825
21826
21827
21828
21829
21830
21831
21832
21833
21834
21835
21836
21837
21838
21839
21840
21841
21842
21843
21844
21845
21846
21847
21848
21849
21850
21851
21852
21853
21854
21855
21856
21857
21858
21859
21860
21861
21862
21863
21864
21865
21866
21867
21868
21869
21870
21871
21872
21873
21874
21875
21876
21877
21878
21879
21880
21881
21882
21883
21884
21885
21886
21887
21888
21889
21890
21891
21892
21893
21894
21895
21896
21897
21898
21899
21900
21901
21902
21903
21904
21905
21906
21907
21908
21909
21910
21911
21912
21913
21914
21915
21916
21917
21918
21919
21920
21921
21922
21923
21924
21925
21926
21927
21928
21929
21930
21931
21932
21933
21934
21935
21936
21937
21938
21939
21940
21941
21942
21943
21944
21945
21946
21947
21948
21949
21950
21951
21952
21953
21954
21955
21956
21957
21958
21959
21960
21961
21962
21963
21964
21965
21966
21967
21968
21969
21970
21971
21972
21973
21974
21975
21976
21977
21978
21979
21980
21981
21982
21983
21984
21985
21986
21987
21988
21989
21990
21991
21992
21993
21994
21995
21996
21997
21998
21999
22000
22001
22002
22003
22004
22005
22006
22007
22008
22009
22010
22011
22012
22013
22014
22015
22016
22017
22018
22019
22020
22021
22022
22023
22024
22025
22026
22027
22028
22029
22030
22031
22032
22033
22034
22035
22036
22037
22038
22039
22040
22041
22042
22043
22044
22045
22046
22047
22048
22049
22050
22051
22052
22053
22054
22055
22056
22057
22058
22059
22060
22061
22062
22063
22064
22065
22066
22067
22068
22069
22070
22071
22072
22073
22074
22075
22076
22077
22078
22079
22080
22081
22082
22083
22084
22085
22086
22087
22088
22089
22090
22091
22092
22093
22094
22095
22096
22097
22098
22099
22100
22101
22102
22103
22104
22105
22106
22107
22108
22109
22110
22111
22112
22113
22114
22115
22116
22117
22118
22119
22120
22121
22122
22123
22124
22125
22126
22127
22128
22129
22130
22131
22132
22133
22134
22135
22136
22137
22138
22139
22140
22141
22142
22143
22144
22145
22146
22147
22148
22149
22150
22151
22152
22153
22154
22155
22156
22157
22158
22159
22160
22161
22162
22163
22164
22165
22166
22167
22168
22169
22170
22171
22172
22173
22174
22175
22176
22177
22178
22179
22180
22181
22182
22183
22184
22185
22186
22187
22188
22189
22190
22191
22192
22193
22194
22195
22196
22197
22198
22199
22200
22201
22202
22203
22204
22205
22206
22207
22208
22209
22210
22211
22212
22213
22214
22215
22216
22217
22218
22219
22220
22221
22222
22223
22224
22225
22226
22227
22228
22229
22230
22231
22232
22233
22234
22235
22236
22237
22238
22239
22240
22241
22242
22243
22244
22245
22246
22247
22248
22249
22250
22251
22252
22253
22254
22255
22256
22257
22258
22259
22260
22261
22262
22263
22264
22265
22266
22267
22268
22269
22270
22271
22272
22273
22274
22275
22276
22277
22278
22279
22280
22281
22282
22283
22284
22285
22286
22287
22288
22289
22290
22291
22292
22293
22294
22295
22296
22297
22298
22299
22300
22301
22302
22303
22304
22305
22306
22307
22308
22309
22310
22311
22312
22313
22314
22315
22316
22317
22318
22319
22320
22321
22322
22323
22324
22325
22326
22327
22328
22329
22330
22331
22332
22333
22334
22335
22336
22337
22338
22339
22340
22341
22342
22343
22344
22345
22346
22347
22348
22349
22350
22351
22352
22353
22354
22355
22356
22357
22358
22359
22360
22361
22362
22363
22364
22365
22366
22367
22368
22369
22370
22371
22372
22373
22374
22375
22376
22377
22378
22379
22380
22381
22382
22383
22384
22385
22386
22387
22388
22389
22390
22391
22392
22393
22394
22395
22396
22397
22398
22399
22400
22401
22402
22403
22404
22405
22406
22407
22408
22409
22410
22411
22412
22413
22414
22415
22416
22417
22418
22419
22420
22421
22422
22423
22424
22425
22426
22427
22428
22429
22430
22431
22432
22433
22434
22435
22436
22437
22438
22439
22440
22441
22442
22443
22444
22445
22446
22447
22448
22449
22450
22451
22452
22453
22454
22455
22456
22457
22458
22459
22460
22461
22462
22463
22464
22465
22466
22467
22468
22469
22470
22471
22472
22473
22474
22475
22476
22477
22478
22479
22480
22481
22482
22483
22484
22485
22486
22487
22488
22489
22490
22491
22492
22493
22494
22495
22496
22497
22498
22499
22500
22501
22502
22503
22504
22505
22506
22507
22508
22509
22510
22511
22512
22513
22514
22515
22516
22517
22518
22519
22520
22521
22522
22523
22524
22525
22526
22527
22528
22529
22530
22531
22532
22533
22534
22535
22536
22537
22538
22539
22540
22541
22542
22543
22544
22545
22546
22547
22548
22549
22550
22551
22552
22553
22554
22555
22556
22557
22558
22559
22560
22561
22562
22563
22564
22565
22566
22567
22568
22569
22570
22571
22572
22573
22574
22575
22576
22577
22578
22579
22580
22581
22582
22583
22584
22585
22586
22587
22588
22589
22590
22591
22592
22593
22594
22595
22596
22597
22598
22599
22600
22601
22602
22603
22604
22605
22606
22607
22608
22609
22610
22611
22612
22613
22614
22615
22616
22617
22618
22619
22620
22621
22622
22623
22624
22625
22626
22627
22628
22629
22630
22631
22632
22633
22634
22635
22636
22637
22638
22639
22640
22641
22642
22643
22644
22645
22646
22647
22648
22649
22650
22651
22652
22653
22654
22655
22656
22657
22658
22659
22660
22661
22662
22663
22664
22665
22666
22667
22668
22669
22670
22671
22672
22673
22674
22675
22676
22677
22678
22679
22680
22681
22682
22683
22684
22685
22686
22687
22688
22689
22690
22691
22692
22693
22694
22695
22696
22697
22698
22699
22700
22701
22702
22703
22704
22705
22706
22707
22708
22709
22710
22711
22712
22713
22714
22715
22716
22717
22718
22719
22720
22721
22722
22723
22724
22725
22726
22727
22728
22729
22730
22731
22732
22733
22734
22735
22736
22737
22738
22739
22740
22741
22742
22743
22744
22745
22746
22747
22748
22749
22750
22751
22752
22753
22754
22755
22756
22757
22758
22759
22760
22761
22762
22763
22764
22765
22766
22767
22768
22769
22770
22771
22772
22773
22774
22775
22776
22777
22778
22779
22780
22781
22782
22783
22784
22785
22786
22787
22788
22789
22790
22791
22792
22793
22794
22795
22796
22797
22798
22799
22800
22801
22802
22803
22804
22805
22806
22807
22808
22809
22810
22811
22812
22813
22814
22815
22816
22817
22818
22819
22820
22821
22822
22823
22824
22825
22826
22827
22828
22829
22830
22831
22832
22833
22834
22835
22836
22837
22838
22839
22840
22841
22842
22843
22844
22845
22846
22847
22848
22849
22850
22851
22852
22853
22854
22855
22856
22857
22858
22859
22860
22861
22862
22863
22864
22865
22866
22867
22868
22869
22870
22871
22872
22873
22874
22875
22876
22877
22878
22879
22880
22881
22882
22883
22884
22885
22886
22887
22888
22889
22890
22891
22892
22893
22894
22895
22896
22897
22898
22899
22900
22901
22902
22903
22904
22905
22906
22907
22908
22909
22910
22911
22912
22913
22914
22915
22916
22917
22918
22919
22920
22921
22922
22923
22924
22925
22926
22927
22928
22929
22930
22931
22932
22933
22934
22935
22936
22937
22938
22939
22940
22941
22942
22943
22944
22945
22946
22947
22948
22949
22950
22951
22952
22953
22954
22955
22956
22957
22958
22959
22960
22961
22962
22963
22964
22965
22966
22967
22968
22969
22970
22971
22972
22973
22974
22975
22976
22977
22978
22979
22980
22981
22982
22983
22984
22985
22986
22987
22988
22989
22990
22991
22992
22993
22994
22995
22996
22997
22998
22999
23000
23001
23002
23003
23004
23005
23006
23007
23008
23009
23010
23011
23012
23013
23014
23015
23016
23017
23018
23019
23020
23021
23022
23023
23024
23025
23026
23027
23028
23029
23030
23031
23032
23033
23034
23035
23036
23037
23038
23039
23040
23041
23042
23043
23044
23045
23046
23047
23048
23049
23050
23051
23052
23053
23054
23055
23056
23057
23058
23059
23060
23061
23062
23063
23064
23065
23066
23067
23068
23069
23070
23071
23072
23073
23074
23075
23076
23077
23078
23079
23080
23081
23082
23083
23084
23085
23086
23087
23088
23089
23090
23091
23092
23093
23094
23095
23096
23097
23098
23099
23100
23101
23102
23103
23104
23105
23106
23107
23108
23109
23110
23111
23112
23113
23114
23115
23116
23117
23118
23119
23120
23121
23122
23123
23124
23125
23126
23127
23128
23129
23130
23131
23132
23133
23134
23135
23136
23137
23138
23139
23140
23141
23142
23143
23144
23145
23146
23147
23148
23149
23150
23151
23152
23153
23154
23155
23156
23157
23158
23159
23160
23161
23162
23163
23164
23165
23166
23167
23168
23169
23170
23171
23172
23173
23174
23175
23176
23177
23178
23179
23180
23181
23182
23183
23184
23185
23186
23187
23188
23189
23190
23191
23192
23193
23194
23195
23196
23197
23198
23199
23200
23201
23202
23203
23204
23205
23206
23207
23208
23209
23210
23211
23212
23213
23214
23215
23216
23217
23218
23219
23220
23221
23222
23223
23224
23225
23226
23227
23228
23229
23230
23231
23232
23233
23234
23235
23236
23237
23238
23239
23240
23241
23242
23243
23244
23245
23246
23247
23248
23249
23250
23251
23252
23253
23254
23255
23256
23257
23258
23259
23260
23261
23262
23263
23264
23265
23266
23267
23268
23269
23270
23271
23272
23273
23274
23275
23276
23277
23278
23279
23280
23281
23282
23283
23284
23285
23286
23287
23288
23289
23290
23291
23292
23293
23294
23295
23296
23297
23298
23299
23300
23301
23302
23303
23304
23305
23306
23307
23308
23309
23310
23311
23312
23313
23314
23315
23316
23317
23318
23319
23320
23321
23322
23323
23324
23325
23326
23327
23328
23329
23330
23331
23332
23333
23334
23335
23336
23337
23338
23339
23340
23341
23342
23343
23344
23345
23346
23347
23348
23349
23350
23351
23352
23353
23354
23355
23356
23357
23358
23359
23360
23361
23362
23363
23364
23365
23366
23367
23368
23369
23370
23371
23372
23373
23374
23375
23376
23377
23378
23379
23380
23381
23382
23383
23384
23385
23386
23387
23388
23389
23390
23391
23392
23393
23394
23395
23396
23397
23398
23399
23400
23401
23402
23403
23404
23405
23406
23407
23408
23409
23410
23411
23412
23413
23414
23415
23416
23417
23418
23419
23420
23421
23422
23423
23424
23425
23426
23427
23428
23429
23430
23431
23432
23433
23434
23435
23436
23437
23438
23439
23440
23441
23442
23443
23444
23445
23446
23447
23448
23449
23450
23451
23452
23453
23454
23455
23456
23457
23458
23459
23460
23461
23462
23463
23464
23465
23466
23467
23468
23469
23470
23471
23472
23473
23474
23475
23476
23477
23478
23479
23480
23481
23482
23483
23484
23485
23486
23487
23488
23489
23490
23491
23492
23493
23494
23495
23496
23497
23498
23499
23500
23501
23502
23503
23504
23505
23506
23507
23508
23509
23510
23511
23512
23513
23514
23515
23516
23517
23518
23519
23520
23521
23522
23523
23524
23525
23526
23527
23528
23529
23530
23531
23532
23533
23534
23535
23536
23537
23538
23539
23540
23541
23542
23543
23544
23545
23546
23547
23548
23549
23550
23551
23552
23553
23554
23555
23556
23557
23558
23559
23560
23561
23562
23563
23564
23565
23566
23567
23568
23569
23570
23571
23572
23573
23574
23575
23576
23577
23578
23579
23580
23581
23582
23583
23584
23585
23586
23587
23588
23589
23590
23591
23592
23593
23594
23595
23596
23597
23598
23599
23600
23601
23602
23603
23604
23605
23606
23607
23608
23609
23610
23611
23612
23613
23614
23615
23616
23617
23618
23619
23620
23621
23622
23623
23624
23625
23626
23627
23628
23629
23630
23631
23632
23633
23634
23635
23636
23637
23638
23639
23640
23641
23642
23643
23644
23645
23646
23647
23648
23649
23650
23651
23652
23653
23654
23655
23656
23657
23658
23659
23660
23661
23662
23663
23664
23665
23666
23667
23668
23669
23670
23671
23672
23673
23674
23675
23676
23677
23678
23679
23680
23681
23682
23683
23684
23685
23686
23687
23688
23689
23690
23691
23692
23693
23694
23695
23696
23697
23698
23699
23700
23701
23702
23703
23704
23705
23706
23707
23708
23709
23710
23711
23712
23713
23714
23715
23716
23717
23718
23719
23720
23721
23722
23723
23724
23725
23726
23727
23728
23729
23730
23731
23732
23733
23734
23735
23736
23737
23738
23739
23740
23741
23742
23743
23744
23745
23746
23747
23748
23749
23750
23751
23752
23753
23754
23755
23756
23757
23758
23759
23760
23761
23762
23763
23764
23765
23766
23767
23768
23769
23770
23771
23772
23773
23774
23775
23776
23777
23778
23779
23780
23781
23782
23783
23784
23785
23786
23787
23788
23789
23790
23791
23792
23793
23794
23795
23796
23797
23798
23799
23800
23801
23802
23803
23804
23805
23806
23807
23808
23809
23810
23811
23812
23813
23814
23815
23816
23817
23818
23819
23820
23821
23822
23823
23824
23825
23826
23827
23828
23829
23830
23831
23832
23833
23834
23835
23836
23837
23838
23839
23840
23841
23842
23843
23844
23845
23846
23847
23848
23849
23850
23851
23852
23853
23854
23855
23856
23857
23858
23859
23860
23861
23862
23863
23864
23865
23866
23867
23868
23869
23870
23871
23872
23873
23874
23875
23876
23877
23878
23879
23880
23881
23882
23883
23884
23885
23886
23887
23888
23889
23890
23891
23892
23893
23894
23895
23896
23897
23898
23899
23900
23901
23902
23903
23904
23905
23906
23907
23908
23909
23910
23911
23912
23913
23914
23915
23916
23917
23918
23919
23920
23921
23922
23923
23924
23925
23926
23927
23928
23929
23930
23931
23932
23933
23934
23935
23936
23937
23938
23939
23940
23941
23942
23943
23944
23945
23946
23947
23948
23949
23950
23951
23952
23953
23954
23955
23956
23957
23958
23959
23960
23961
23962
23963
23964
23965
23966
23967
23968
23969
23970
23971
23972
23973
23974
23975
23976
23977
23978
23979
23980
23981
23982
23983
23984
23985
23986
23987
23988
23989
23990
23991
23992
23993
23994
23995
23996
23997
23998
23999
24000
24001
24002
24003
24004
24005
24006
24007
24008
24009
24010
24011
24012
24013
24014
24015
24016
24017
24018
24019
24020
24021
24022
24023
24024
24025
24026
24027
24028
24029
24030
24031
24032
24033
24034
24035
24036
24037
24038
24039
24040
24041
24042
24043
24044
24045
24046
24047
24048
24049
24050
24051
24052
24053
24054
24055
24056
24057
24058
24059
24060
24061
24062
24063
24064
24065
24066
24067
24068
24069
24070
24071
24072
24073
24074
24075
24076
24077
24078
24079
24080
24081
24082
24083
24084
24085
24086
24087
24088
24089
24090
24091
24092
24093
24094
24095
24096
24097
24098
24099
24100
24101
24102
24103
24104
24105
24106
24107
24108
24109
24110
24111
24112
24113
24114
24115
24116
24117
24118
24119
24120
24121
24122
24123
24124
24125
24126
24127
24128
24129
24130
24131
24132
24133
24134
24135
24136
24137
24138
24139
24140
24141
24142
24143
24144
24145
24146
24147
24148
24149
24150
24151
24152
24153
24154
24155
24156
24157
24158
24159
24160
24161
24162
24163
24164
24165
24166
24167
24168
24169
24170
24171
24172
24173
24174
24175
24176
24177
24178
24179
24180
24181
24182
24183
24184
24185
24186
24187
24188
24189
24190
24191
24192
24193
24194
24195
24196
24197
24198
24199
24200
24201
24202
24203
24204
24205
24206
24207
24208
24209
24210
24211
24212
24213
24214
24215
24216
24217
24218
24219
24220
24221
24222
24223
24224
24225
24226
24227
24228
24229
24230
24231
24232
24233
24234
24235
24236
24237
24238
24239
24240
24241
24242
24243
24244
24245
24246
24247
24248
24249
24250
24251
24252
24253
24254
24255
24256
24257
24258
24259
24260
24261
24262
24263
24264
24265
24266
24267
24268
24269
24270
24271
24272
24273
24274
24275
24276
24277
24278
24279
24280
24281
24282
24283
24284
24285
24286
24287
24288
24289
24290
24291
24292
24293
24294
24295
24296
24297
24298
24299
24300
24301
24302
24303
24304
24305
24306
24307
24308
24309
24310
24311
24312
24313
24314
24315
24316
24317
24318
24319
24320
24321
24322
24323
24324
24325
24326
24327
24328
24329
24330
24331
24332
24333
24334
24335
24336
24337
24338
24339
24340
24341
24342
24343
24344
24345
24346
24347
24348
24349
24350
24351
24352
24353
24354
24355
24356
24357
24358
24359
24360
24361
24362
24363
24364
24365
24366
24367
24368
24369
24370
24371
24372
24373
24374
24375
24376
24377
24378
24379
24380
24381
24382
24383
24384
24385
24386
24387
24388
24389
24390
24391
24392
24393
24394
24395
24396
24397
24398
24399
24400
24401
24402
24403
24404
24405
24406
24407
24408
24409
24410
24411
24412
24413
24414
24415
24416
24417
24418
24419
24420
24421
24422
24423
24424
24425
24426
24427
24428
24429
24430
24431
24432
24433
24434
24435
24436
24437
24438
24439
24440
24441
24442
24443
24444
24445
24446
24447
24448
24449
24450
24451
24452
24453
24454
24455
24456
24457
24458
24459
24460
24461
24462
24463
24464
24465
24466
24467
24468
24469
24470
24471
24472
24473
24474
24475
24476
24477
24478
24479
24480
24481
24482
24483
24484
24485
24486
24487
24488
24489
24490
24491
24492
24493
24494
24495
24496
24497
24498
24499
24500
24501
24502
24503
24504
24505
24506
24507
24508
24509
24510
24511
24512
24513
24514
24515
24516
24517
24518
24519
24520
24521
24522
24523
24524
24525
24526
24527
24528
24529
24530
24531
24532
24533
24534
24535
24536
24537
24538
24539
24540
24541
24542
24543
24544
24545
24546
24547
24548
24549
24550
24551
24552
24553
24554
24555
24556
24557
24558
24559
24560
24561
24562
24563
24564
24565
24566
24567
24568
24569
24570
24571
24572
24573
24574
24575
24576
24577
24578
24579
24580
24581
24582
24583
24584
24585
24586
24587
24588
24589
24590
24591
24592
24593
24594
24595
24596
24597
24598
24599
24600
24601
24602
24603
24604
24605
24606
24607
24608
24609
24610
24611
24612
24613
24614
24615
24616
24617
24618
24619
24620
24621
24622
24623
24624
24625
24626
24627
24628
24629
24630
24631
24632
24633
24634
24635
24636
24637
24638
24639
24640
24641
24642
24643
24644
24645
24646
24647
24648
24649
24650
24651
24652
24653
24654
24655
24656
24657
24658
24659
24660
24661
24662
24663
24664
24665
24666
24667
24668
24669
24670
24671
24672
24673
24674
24675
24676
24677
24678
24679
24680
24681
24682
24683
24684
24685
24686
24687
24688
24689
24690
24691
24692
24693
24694
24695
24696
24697
24698
24699
24700
24701
24702
24703
24704
24705
24706
24707
24708
24709
24710
24711
24712
24713
24714
24715
24716
24717
24718
24719
24720
24721
24722
24723
24724
24725
24726
24727
24728
24729
24730
24731
24732
24733
24734
24735
24736
24737
24738
24739
24740
24741
24742
24743
24744
24745
24746
24747
24748
24749
24750
24751
24752
24753
24754
24755
24756
24757
24758
24759
24760
24761
24762
24763
24764
24765
24766
24767
24768
24769
24770
24771
24772
24773
24774
24775
24776
24777
24778
24779
24780
24781
24782
24783
24784
24785
24786
24787
24788
24789
24790
24791
24792
24793
24794
24795
24796
24797
24798
24799
24800
24801
24802
24803
24804
24805
24806
24807
24808
24809
24810
24811
24812
24813
24814
24815
24816
24817
24818
24819
24820
24821
24822
24823
24824
24825
24826
24827
24828
24829
24830
24831
24832
24833
24834
24835
24836
24837
24838
24839
24840
24841
24842
24843
24844
24845
24846
24847
24848
24849
24850
24851
24852
24853
24854
24855
24856
24857
24858
24859
24860
24861
24862
24863
24864
24865
24866
24867
24868
24869
24870
24871
24872
24873
24874
24875
24876
24877
24878
24879
24880
24881
24882
24883
24884
24885
24886
24887
24888
24889
24890
24891
24892
24893
24894
24895
24896
24897
24898
24899
24900
24901
24902
24903
24904
24905
24906
24907
24908
24909
24910
24911
24912
24913
24914
24915
24916
24917
24918
24919
24920
24921
24922
24923
24924
24925
24926
24927
24928
24929
24930
24931
24932
24933
24934
24935
24936
24937
24938
24939
24940
24941
24942
24943
24944
24945
24946
24947
24948
24949
24950
24951
24952
24953
24954
24955
24956
24957
24958
24959
24960
24961
24962
24963
24964
24965
24966
24967
24968
24969
24970
24971
24972
24973
24974
24975
24976
24977
24978
24979
24980
24981
24982
24983
24984
24985
24986
24987
24988
24989
24990
24991
24992
24993
24994
24995
24996
24997
24998
24999
25000
25001
25002
25003
25004
25005
25006
25007
25008
25009
25010
25011
25012
25013
25014
25015
25016
25017
25018
25019
25020
25021
25022
25023
25024
25025
25026
25027
25028
25029
25030
25031
25032
25033
25034
25035
25036
25037
25038
25039
25040
25041
25042
25043
25044
25045
25046
25047
25048
25049
25050
25051
25052
25053
25054
25055
25056
25057
25058
25059
25060
25061
25062
25063
25064
25065
25066
25067
25068
25069
25070
25071
25072
25073
25074
25075
25076
25077
25078
25079
25080
25081
25082
25083
25084
25085
25086
25087
25088
25089
25090
25091
25092
25093
25094
25095
25096
25097
25098
25099
25100
25101
25102
25103
25104
25105
25106
25107
25108
25109
25110
25111
25112
25113
25114
25115
25116
25117
25118
25119
25120
25121
25122
25123
25124
25125
25126
25127
25128
25129
25130
25131
25132
25133
25134
25135
25136
25137
25138
25139
25140
25141
25142
25143
25144
25145
25146
25147
25148
25149
25150
25151
25152
25153
25154
25155
25156
25157
25158
25159
25160
25161
25162
25163
25164
25165
25166
25167
25168
25169
25170
25171
25172
25173
25174
25175
25176
25177
25178
25179
25180
25181
25182
25183
25184
25185
25186
25187
25188
25189
25190
25191
25192
25193
25194
25195
25196
25197
25198
25199
25200
25201
25202
25203
25204
25205
25206
25207
25208
25209
25210
25211
25212
25213
25214
25215
25216
25217
25218
25219
25220
25221
25222
25223
25224
25225
25226
25227
25228
25229
25230
25231
25232
25233
25234
25235
25236
25237
25238
25239
25240
25241
25242
25243
25244
25245
25246
25247
25248
25249
25250
25251
25252
25253
25254
25255
25256
25257
25258
25259
25260
25261
25262
25263
25264
25265
25266
25267
25268
25269
25270
25271
25272
25273
25274
25275
25276
25277
25278
25279
25280
25281
25282
25283
25284
25285
25286
25287
25288
25289
25290
25291
25292
25293
25294
25295
25296
25297
25298
25299
25300
25301
25302
25303
25304
25305
25306
25307
25308
25309
25310
25311
25312
25313
25314
25315
25316
25317
25318
25319
25320
25321
25322
25323
25324
25325
25326
25327
25328
25329
25330
25331
25332
25333
25334
25335
25336
25337
25338
25339
25340
25341
25342
25343
25344
25345
25346
25347
25348
25349
25350
25351
25352
25353
25354
25355
25356
25357
25358
25359
25360
25361
25362
25363
25364
25365
25366
25367
25368
25369
25370
25371
25372
25373
25374
25375
25376
25377
25378
25379
25380
25381
25382
25383
25384
25385
25386
25387
25388
25389
25390
25391
25392
25393
25394
25395
25396
25397
25398
25399
25400
25401
25402
25403
25404
25405
25406
25407
25408
25409
25410
25411
25412
25413
25414
25415
25416
25417
25418
25419
25420
25421
25422
25423
25424
25425
25426
25427
25428
25429
25430
25431
25432
25433
25434
25435
25436
25437
25438
25439
25440
25441
25442
25443
25444
25445
25446
25447
25448
25449
25450
25451
25452
25453
25454
25455
25456
25457
25458
25459
25460
25461
25462
25463
25464
25465
25466
25467
25468
25469
25470
25471
25472
25473
25474
25475
25476
25477
25478
25479
25480
25481
25482
25483
25484
25485
25486
25487
25488
25489
25490
25491
25492
25493
25494
25495
25496
25497
25498
25499
25500
25501
25502
25503
25504
25505
25506
25507
25508
25509
25510
25511
25512
25513
25514
25515
25516
25517
25518
25519
25520
25521
25522
25523
25524
25525
25526
25527
25528
25529
25530
25531
25532
25533
25534
25535
25536
25537
25538
25539
25540
25541
25542
25543
25544
25545
25546
25547
25548
25549
25550
25551
25552
25553
25554
25555
25556
25557
25558
25559
25560
25561
25562
25563
25564
25565
25566
25567
25568
25569
25570
25571
25572
25573
25574
25575
25576
25577
25578
25579
25580
25581
25582
25583
25584
25585
25586
25587
25588
25589
25590
25591
25592
25593
25594
25595
25596
25597
25598
25599
25600
25601
25602
25603
25604
25605
25606
25607
25608
25609
25610
25611
25612
25613
25614
25615
25616
25617
25618
25619
25620
25621
25622
25623
25624
25625
25626
25627
25628
25629
25630
25631
25632
25633
25634
25635
25636
25637
25638
25639
25640
25641
25642
25643
25644
25645
25646
25647
25648
25649
25650
25651
25652
25653
25654
25655
25656
25657
25658
25659
25660
25661
25662
25663
25664
25665
25666
25667
25668
25669
25670
25671
25672
25673
25674
25675
25676
25677
25678
25679
25680
25681
25682
25683
25684
25685
25686
25687
25688
25689
25690
25691
25692
25693
25694
25695
25696
25697
25698
25699
25700
25701
25702
25703
25704
25705
25706
25707
25708
25709
25710
25711
25712
25713
25714
25715
25716
25717
25718
25719
25720
25721
25722
25723
25724
25725
25726
25727
25728
25729
25730
25731
25732
25733
25734
25735
25736
25737
25738
25739
25740
25741
25742
25743
25744
25745
25746
25747
25748
25749
25750
25751
25752
25753
25754
25755
25756
25757
25758
25759
25760
25761
25762
25763
25764
25765
25766
25767
25768
25769
25770
25771
25772
25773
25774
25775
25776
25777
25778
25779
25780
25781
25782
25783
25784
25785
25786
25787
25788
25789
25790
25791
25792
25793
25794
25795
25796
25797
25798
25799
25800
25801
25802
25803
25804
25805
25806
25807
25808
25809
25810
25811
25812
25813
25814
25815
25816
25817
25818
25819
25820
25821
25822
25823
25824
25825
25826
25827
25828
25829
25830
25831
25832
25833
25834
25835
25836
25837
25838
25839
25840
25841
25842
25843
25844
25845
25846
25847
25848
25849
25850
25851
25852
25853
25854
25855
25856
25857
25858
25859
25860
25861
25862
25863
25864
25865
25866
25867
25868
25869
25870
25871
25872
25873
25874
25875
25876
25877
25878
25879
25880
25881
25882
25883
25884
25885
25886
25887
25888
25889
25890
25891
25892
25893
25894
25895
25896
25897
25898
25899
25900
25901
25902
25903
25904
25905
25906
25907
25908
25909
25910
25911
25912
25913
25914
25915
25916
25917
25918
25919
25920
25921
25922
25923
25924
25925
25926
25927
25928
25929
25930
25931
25932
25933
25934
25935
25936
25937
25938
25939
25940
25941
25942
25943
25944
25945
25946
25947
25948
25949
25950
25951
25952
25953
25954
25955
25956
25957
25958
25959
25960
25961
25962
25963
25964
25965
25966
25967
25968
25969
25970
25971
25972
25973
25974
25975
25976
25977
25978
25979
25980
25981
25982
25983
25984
25985
25986
25987
25988
25989
25990
25991
25992
25993
25994
25995
25996
25997
25998
25999
26000
26001
26002
26003
26004
26005
26006
26007
26008
26009
26010
26011
26012
26013
26014
26015
26016
26017
26018
26019
26020
26021
26022
26023
26024
26025
26026
26027
26028
26029
26030
26031
26032
26033
26034
26035
26036
26037
26038
26039
26040
26041
26042
26043
26044
26045
26046
26047
26048
26049
26050
26051
26052
26053
26054
26055
26056
26057
26058
26059
26060
26061
26062
26063
26064
26065
26066
26067
26068
26069
26070
26071
26072
26073
26074
26075
26076
26077
26078
26079
26080
26081
26082
26083
26084
26085
26086
26087
26088
26089
26090
26091
26092
26093
26094
26095
26096
26097
26098
26099
26100
26101
26102
26103
26104
26105
26106
26107
26108
26109
26110
26111
26112
26113
26114
26115
26116
26117
26118
26119
26120
26121
26122
26123
26124
26125
26126
26127
26128
26129
26130
26131
26132
26133
26134
26135
26136
26137
26138
26139
26140
26141
26142
26143
26144
26145
26146
26147
26148
26149
26150
26151
26152
26153
26154
26155
26156
26157
26158
26159
26160
26161
26162
26163
26164
26165
26166
26167
26168
26169
26170
26171
26172
26173
26174
26175
26176
26177
26178
26179
26180
26181
26182
26183
26184
26185
26186
26187
26188
26189
26190
26191
26192
26193
26194
26195
26196
26197
26198
26199
26200
26201
26202
26203
26204
26205
26206
26207
26208
26209
26210
26211
26212
26213
26214
26215
26216
26217
26218
26219
26220
26221
26222
26223
26224
26225
26226
26227
26228
26229
26230
26231
26232
26233
26234
26235
26236
26237
26238
26239
26240
26241
26242
26243
26244
26245
26246
26247
26248
26249
26250
26251
26252
26253
26254
26255
26256
26257
26258
26259
26260
26261
26262
26263
26264
26265
26266
26267
26268
26269
26270
26271
26272
26273
26274
26275
26276
26277
26278
26279
26280
26281
26282
26283
26284
26285
26286
26287
26288
26289
26290
26291
26292
26293
26294
26295
26296
26297
26298
26299
26300
26301
26302
26303
26304
26305
26306
26307
26308
26309
26310
26311
26312
26313
26314
26315
26316
26317
26318
26319
26320
26321
26322
26323
26324
26325
26326
26327
26328
26329
26330
26331
26332
26333
26334
26335
26336
26337
26338
26339
26340
26341
26342
26343
26344
26345
26346
26347
26348
26349
26350
26351
26352
26353
26354
26355
26356
26357
26358
26359
26360
26361
26362
26363
26364
26365
26366
26367
26368
26369
26370
26371
26372
26373
26374
26375
26376
26377
26378
26379
26380
26381
26382
26383
26384
26385
26386
26387
26388
26389
26390
26391
26392
26393
26394
26395
26396
26397
26398
26399
26400
26401
26402
26403
26404
26405
26406
26407
26408
26409
26410
26411
26412
26413
26414
26415
26416
26417
26418
26419
26420
26421
26422
26423
26424
26425
26426
26427
26428
26429
26430
26431
26432
26433
26434
26435
26436
26437
26438
26439
26440
26441
26442
26443
26444
26445
26446
26447
26448
26449
26450
26451
26452
26453
26454
26455
26456
26457
26458
26459
26460
26461
26462
26463
26464
26465
26466
26467
26468
26469
26470
26471
26472
26473
26474
26475
26476
26477
26478
26479
26480
26481
26482
26483
26484
26485
26486
26487
26488
26489
26490
26491
26492
26493
26494
26495
26496
26497
26498
26499
26500
26501
26502
26503
26504
26505
26506
26507
26508
26509
26510
26511
26512
26513
26514
26515
26516
26517
26518
26519
26520
26521
26522
26523
26524
26525
26526
26527
26528
26529
26530
26531
26532
26533
26534
26535
26536
26537
26538
26539
26540
26541
26542
26543
26544
26545
26546
26547
26548
26549
26550
26551
26552
26553
26554
26555
26556
26557
26558
26559
26560
26561
26562
26563
26564
26565
26566
26567
26568
26569
26570
26571
26572
26573
26574
26575
26576
26577
26578
26579
26580
26581
26582
26583
26584
26585
26586
26587
26588
26589
26590
26591
26592
26593
26594
26595
26596
26597
26598
26599
26600
26601
26602
26603
26604
26605
26606
26607
26608
26609
26610
26611
26612
26613
26614
26615
26616
26617
26618
26619
26620
26621
26622
26623
26624
26625
26626
26627
26628
26629
26630
26631
26632
26633
26634
26635
26636
26637
26638
26639
26640
26641
26642
26643
26644
26645
26646
26647
26648
26649
26650
26651
26652
26653
26654
26655
26656
26657
26658
26659
26660
26661
26662
26663
26664
26665
26666
26667
26668
26669
26670
26671
26672
26673
26674
26675
26676
26677
26678
26679
26680
26681
26682
26683
26684
26685
26686
26687
26688
26689
26690
26691
26692
26693
26694
26695
26696
26697
26698
26699
26700
26701
26702
26703
26704
26705
26706
26707
26708
26709
26710
26711
26712
26713
26714
26715
26716
26717
26718
26719
26720
26721
26722
26723
26724
26725
26726
26727
26728
26729
26730
26731
26732
26733
26734
26735
26736
26737
26738
26739
26740
26741
26742
26743
26744
26745
26746
26747
26748
26749
26750
26751
26752
26753
26754
26755
26756
26757
26758
26759
26760
26761
26762
26763
26764
26765
26766
26767
26768
26769
26770
26771
26772
26773
26774
26775
26776
26777
26778
26779
26780
26781
26782
26783
26784
26785
26786
26787
26788
26789
26790
26791
26792
26793
26794
26795
26796
26797
26798
26799
26800
26801
26802
26803
26804
26805
26806
26807
26808
26809
26810
26811
26812
26813
26814
26815
26816
26817
26818
26819
26820
26821
26822
26823
26824
26825
26826
26827
26828
26829
26830
26831
26832
26833
26834
26835
26836
26837
26838
26839
26840
26841
26842
26843
26844
26845
26846
26847
26848
26849
26850
26851
26852
26853
26854
26855
26856
26857
26858
26859
26860
26861
26862
26863
26864
26865
26866
26867
26868
26869
26870
26871
26872
26873
26874
26875
26876
26877
26878
26879
26880
26881
26882
26883
26884
26885
26886
26887
26888
26889
26890
26891
26892
26893
26894
26895
26896
26897
26898
26899
26900
26901
26902
26903
26904
26905
26906
26907
26908
26909
26910
26911
26912
26913
26914
26915
26916
26917
26918
26919
26920
26921
26922
26923
26924
26925
26926
26927
26928
26929
26930
26931
26932
26933
26934
26935
26936
26937
26938
26939
26940
26941
26942
26943
26944
26945
26946
26947
26948
26949
26950
26951
26952
26953
26954
26955
26956
26957
26958
26959
26960
26961
26962
26963
26964
26965
26966
26967
26968
26969
26970
26971
26972
26973
26974
26975
26976
26977
26978
26979
26980
26981
26982
26983
26984
26985
26986
26987
26988
26989
26990
26991
26992
26993
26994
26995
26996
26997
26998
26999
27000
27001
27002
27003
27004
27005
27006
27007
27008
27009
27010
27011
27012
27013
27014
27015
27016
27017
27018
27019
27020
27021
27022
27023
27024
27025
27026
27027
27028
27029
27030
27031
27032
27033
27034
27035
27036
27037
27038
27039
27040
27041
27042
27043
27044
27045
27046
27047
27048
27049
27050
27051
27052
27053
27054
27055
27056
27057
27058
27059
27060
27061
27062
27063
27064
27065
27066
27067
27068
27069
27070
27071
27072
27073
27074
27075
27076
27077
27078
27079
27080
27081
27082
27083
27084
27085
27086
27087
27088
27089
27090
27091
27092
27093
27094
27095
27096
27097
27098
27099
27100
27101
27102
27103
27104
27105
27106
27107
27108
27109
27110
27111
27112
27113
27114
27115
27116
27117
27118
27119
27120
27121
27122
27123
27124
27125
27126
27127
27128
27129
27130
27131
27132
27133
27134
27135
27136
27137
27138
27139
27140
27141
27142
27143
27144
27145
27146
27147
27148
27149
27150
27151
27152
27153
27154
27155
27156
27157
27158
27159
27160
27161
27162
27163
27164
27165
27166
27167
27168
27169
27170
27171
27172
27173
27174
27175
27176
27177
27178
27179
27180
27181
27182
27183
27184
27185
27186
27187
27188
27189
27190
27191
27192
27193
27194
27195
27196
27197
27198
27199
27200
27201
27202
27203
27204
27205
27206
27207
27208
27209
27210
27211
27212
27213
27214
27215
27216
27217
27218
27219
27220
27221
27222
27223
27224
27225
27226
27227
27228
27229
27230
27231
27232
27233
27234
27235
27236
27237
27238
27239
27240
27241
27242
27243
27244
27245
27246
27247
27248
27249
27250
27251
27252
27253
27254
27255
27256
27257
27258
27259
27260
27261
27262
27263
27264
27265
27266
27267
27268
27269
27270
27271
27272
27273
27274
27275
27276
27277
27278
27279
27280
27281
27282
27283
27284
27285
27286
27287
27288
27289
27290
27291
27292
27293
27294
27295
27296
27297
27298
27299
27300
27301
27302
27303
27304
27305
27306
27307
27308
27309
27310
27311
27312
27313
27314
27315
27316
27317
27318
27319
27320
27321
27322
27323
27324
27325
27326
27327
27328
27329
27330
27331
27332
27333
27334
27335
27336
27337
27338
27339
27340
27341
27342
27343
27344
27345
27346
27347
27348
27349
27350
27351
27352
27353
27354
27355
27356
27357
27358
27359
27360
27361
27362
27363
27364
27365
27366
27367
27368
27369
27370
27371
27372
27373
27374
27375
27376
27377
27378
27379
27380
27381
27382
27383
27384
27385
27386
27387
27388
27389
27390
27391
27392
27393
27394
27395
27396
27397
27398
27399
27400
27401
27402
27403
27404
27405
27406
27407
27408
27409
27410
27411
27412
27413
27414
27415
27416
27417
27418
27419
27420
27421
27422
27423
27424
27425
27426
27427
27428
27429
27430
27431
27432
27433
27434
27435
27436
27437
27438
27439
27440
27441
27442
27443
27444
27445
27446
27447
27448
27449
27450
27451
27452
27453
27454
27455
27456
27457
27458
27459
27460
27461
27462
27463
27464
27465
27466
27467
27468
27469
27470
27471
27472
27473
27474
27475
27476
27477
27478
27479
27480
27481
27482
27483
27484
27485
27486
27487
27488
27489
27490
27491
27492
27493
27494
27495
27496
27497
27498
27499
27500
27501
27502
27503
27504
27505
27506
27507
27508
27509
27510
27511
27512
27513
27514
27515
27516
27517
27518
27519
27520
27521
27522
27523
27524
27525
27526
27527
27528
27529
27530
27531
27532
27533
27534
27535
27536
27537
27538
27539
27540
27541
27542
27543
27544
27545
27546
27547
27548
27549
27550
27551
27552
27553
27554
27555
27556
27557
27558
27559
27560
27561
27562
27563
27564
27565
27566
27567
27568
27569
27570
27571
27572
27573
27574
27575
27576
27577
27578
27579
27580
27581
27582
27583
27584
27585
27586
27587
27588
27589
27590
27591
27592
27593
27594
27595
27596
27597
27598
27599
27600
27601
27602
27603
27604
27605
27606
27607
27608
27609
27610
27611
27612
27613
27614
27615
27616
27617
27618
27619
27620
27621
27622
27623
27624
27625
27626
27627
27628
27629
27630
27631
27632
27633
27634
27635
27636
27637
27638
27639
27640
27641
27642
27643
27644
27645
27646
27647
27648
27649
27650
27651
27652
27653
27654
27655
27656
27657
27658
27659
27660
27661
27662
27663
27664
27665
27666
27667
27668
27669
27670
27671
27672
27673
27674
27675
27676
27677
27678
27679
27680
27681
27682
27683
27684
27685
27686
27687
27688
27689
27690
27691
27692
27693
27694
27695
27696
27697
27698
27699
27700
27701
27702
27703
27704
27705
27706
27707
27708
27709
27710
27711
27712
27713
27714
27715
27716
27717
27718
27719
27720
27721
27722
27723
27724
27725
27726
27727
27728
27729
27730
27731
27732
27733
27734
27735
27736
27737
27738
27739
27740
27741
27742
27743
27744
27745
27746
27747
27748
27749
27750
27751
27752
27753
27754
27755
27756
27757
27758
27759
27760
27761
27762
27763
27764
27765
27766
27767
27768
27769
27770
27771
27772
27773
27774
27775
27776
27777
27778
27779
27780
27781
27782
27783
27784
27785
27786
27787
27788
27789
27790
27791
27792
27793
27794
27795
27796
27797
27798
27799
27800
27801
27802
27803
27804
27805
27806
27807
27808
27809
27810
27811
27812
27813
27814
27815
27816
27817
27818
27819
27820
27821
27822
27823
27824
27825
27826
27827
27828
27829
27830
27831
27832
27833
27834
27835
27836
27837
27838
27839
27840
27841
27842
27843
27844
27845
27846
27847
27848
27849
27850
27851
27852
27853
27854
27855
27856
27857
27858
27859
27860
27861
27862
27863
27864
27865
27866
27867
27868
27869
27870
27871
27872
27873
27874
27875
27876
27877
27878
27879
27880
27881
27882
27883
27884
27885
27886
27887
27888
27889
27890
27891
27892
27893
27894
27895
27896
27897
27898
27899
27900
27901
27902
27903
27904
27905
27906
27907
27908
27909
27910
27911
27912
27913
27914
27915
27916
27917
27918
27919
27920
27921
27922
27923
27924
27925
27926
27927
27928
27929
27930
27931
27932
27933
27934
27935
27936
27937
27938
27939
27940
27941
27942
27943
27944
27945
27946
27947
27948
27949
27950
27951
27952
27953
27954
27955
27956
27957
27958
27959
27960
27961
27962
27963
27964
27965
27966
27967
27968
27969
27970
27971
27972
27973
27974
27975
27976
27977
27978
27979
27980
27981
27982
27983
27984
27985
27986
27987
27988
27989
27990
27991
27992
27993
27994
27995
27996
27997
27998
27999
28000
28001
28002
28003
28004
28005
28006
28007
28008
28009
28010
28011
28012
28013
28014
28015
28016
28017
28018
28019
28020
28021
28022
28023
28024
28025
28026
28027
28028
28029
28030
28031
28032
28033
28034
28035
28036
28037
28038
28039
28040
28041
28042
28043
28044
28045
28046
28047
28048
28049
28050
28051
28052
28053
28054
28055
28056
28057
28058
28059
28060
28061
28062
28063
28064
28065
28066
28067
28068
28069
28070
28071
28072
28073
28074
28075
28076
28077
28078
28079
28080
28081
28082
28083
28084
28085
28086
28087
28088
28089
28090
28091
28092
28093
28094
28095
28096
28097
28098
28099
28100
28101
28102
28103
28104
28105
28106
28107
28108
28109
28110
28111
28112
28113
28114
28115
28116
28117
28118
28119
28120
28121
28122
28123
28124
28125
28126
28127
28128
28129
28130
28131
28132
28133
28134
28135
28136
28137
28138
28139
28140
28141
28142
28143
28144
28145
28146
28147
28148
28149
28150
28151
28152
28153
28154
28155
28156
28157
28158
28159
28160
28161
28162
28163
28164
28165
28166
28167
28168
28169
28170
28171
28172
28173
28174
28175
28176
28177
28178
28179
28180
28181
28182
28183
28184
28185
28186
28187
28188
28189
28190
28191
28192
28193
28194
28195
28196
28197
28198
28199
28200
28201
28202
28203
28204
28205
28206
28207
28208
28209
28210
28211
28212
28213
28214
28215
28216
28217
28218
28219
28220
28221
28222
28223
28224
28225
28226
28227
28228
28229
28230
28231
28232
28233
28234
28235
28236
28237
28238
28239
28240
28241
28242
28243
28244
28245
28246
28247
28248
28249
28250
28251
28252
28253
28254
28255
28256
28257
28258
28259
28260
28261
28262
28263
28264
28265
28266
28267
28268
28269
28270
28271
28272
28273
28274
28275
28276
28277
28278
28279
28280
28281
28282
28283
28284
28285
28286
28287
28288
28289
28290
28291
28292
28293
28294
28295
28296
28297
28298
28299
28300
28301
28302
28303
28304
28305
28306
28307
28308
28309
28310
28311
28312
28313
28314
28315
28316
28317
28318
28319
28320
28321
28322
28323
28324
28325
28326
28327
28328
28329
28330
28331
28332
28333
28334
28335
28336
28337
28338
28339
28340
28341
28342
28343
28344
28345
28346
28347
28348
28349
28350
28351
28352
28353
28354
28355
28356
28357
28358
28359
28360
28361
28362
28363
28364
28365
28366
28367
28368
28369
28370
28371
28372
28373
28374
28375
28376
28377
28378
28379
28380
28381
28382
28383
28384
28385
28386
28387
28388
28389
28390
28391
28392
28393
28394
28395
28396
28397
28398
28399
28400
28401
28402
28403
28404
28405
28406
28407
28408
28409
28410
28411
28412
28413
28414
28415
28416
28417
28418
28419
28420
28421
28422
28423
28424
28425
28426
28427
28428
28429
28430
28431
28432
28433
28434
28435
28436
28437
28438
28439
28440
28441
28442
28443
28444
28445
28446
28447
28448
28449
28450
28451
28452
28453
28454
28455
28456
28457
28458
28459
28460
28461
28462
28463
28464
28465
28466
28467
28468
28469
28470
28471
28472
28473
28474
28475
28476
28477
28478
28479
28480
28481
28482
28483
28484
28485
28486
28487
28488
28489
28490
28491
28492
28493
28494
28495
28496
28497
28498
28499
28500
28501
28502
28503
28504
28505
28506
28507
28508
28509
28510
28511
28512
28513
28514
28515
28516
28517
28518
28519
28520
28521
28522
28523
28524
28525
28526
28527
28528
28529
28530
28531
28532
28533
28534
28535
28536
28537
28538
28539
28540
28541
28542
28543
28544
28545
28546
28547
28548
28549
28550
28551
28552
28553
28554
28555
28556
28557
28558
28559
28560
28561
28562
28563
28564
28565
28566
28567
28568
28569
28570
28571
28572
28573
28574
28575
28576
28577
28578
28579
28580
28581
28582
28583
28584
28585
28586
28587
28588
28589
28590
28591
28592
28593
28594
28595
28596
28597
28598
28599
28600
28601
28602
28603
28604
28605
28606
28607
28608
28609
28610
28611
28612
28613
28614
28615
28616
28617
28618
28619
28620
28621
28622
28623
28624
28625
28626
28627
28628
28629
28630
28631
28632
28633
28634
28635
28636
28637
28638
28639
28640
28641
28642
28643
28644
28645
28646
28647
28648
28649
28650
28651
28652
28653
28654
28655
28656
28657
28658
28659
28660
28661
28662
28663
28664
28665
28666
28667
28668
28669
28670
28671
28672
28673
28674
28675
28676
28677
28678
28679
28680
28681
28682
28683
28684
28685
28686
28687
28688
28689
28690
28691
28692
28693
28694
28695
28696
28697
28698
28699
28700
28701
28702
28703
28704
28705
28706
28707
28708
28709
28710
28711
28712
28713
28714
28715
28716
28717
28718
28719
28720
28721
28722
28723
28724
28725
28726
28727
28728
28729
28730
28731
28732
28733
28734
28735
28736
28737
28738
28739
28740
28741
28742
28743
28744
28745
28746
28747
28748
28749
28750
28751
28752
28753
28754
28755
28756
28757
28758
28759
28760
28761
28762
28763
28764
28765
28766
28767
28768
28769
28770
28771
28772
28773
28774
28775
28776
28777
28778
28779
28780
28781
28782
28783
28784
28785
28786
28787
28788
28789
28790
28791
28792
28793
28794
28795
28796
28797
28798
28799
28800
28801
28802
28803
28804
28805
28806
28807
28808
28809
28810
28811
28812
28813
28814
28815
28816
28817
28818
28819
28820
28821
28822
28823
28824
28825
28826
28827
28828
28829
28830
28831
28832
28833
28834
28835
28836
28837
28838
28839
28840
28841
28842
28843
28844
28845
28846
28847
28848
28849
28850
28851
28852
28853
28854
28855
28856
28857
28858
28859
28860
28861
28862
28863
28864
28865
28866
28867
28868
28869
28870
28871
28872
28873
28874
28875
28876
28877
28878
28879
28880
28881
28882
28883
28884
28885
28886
28887
28888
28889
28890
28891
28892
28893
28894
28895
28896
28897
28898
28899
28900
28901
28902
28903
28904
28905
28906
28907
28908
28909
28910
28911
28912
28913
28914
28915
28916
28917
28918
28919
28920
28921
28922
28923
28924
28925
28926
28927
28928
28929
28930
28931
28932
28933
28934
28935
28936
28937
28938
28939
28940
28941
28942
28943
28944
28945
28946
28947
28948
28949
28950
28951
28952
28953
28954
28955
28956
28957
28958
28959
28960
28961
28962
28963
28964
28965
28966
28967
28968
28969
28970
28971
28972
28973
28974
28975
28976
28977
28978
28979
28980
28981
28982
28983
28984
28985
28986
28987
28988
28989
28990
28991
28992
28993
28994
28995
28996
28997
28998
28999
29000
29001
29002
29003
29004
29005
29006
29007
29008
29009
29010
29011
29012
29013
29014
29015
29016
29017
29018
29019
29020
29021
29022
29023
29024
29025
29026
29027
29028
29029
29030
29031
29032
29033
29034
29035
29036
29037
29038
29039
29040
29041
29042
29043
29044
29045
29046
29047
29048
29049
29050
29051
29052
29053
29054
29055
29056
29057
29058
29059
29060
29061
29062
29063
29064
29065
29066
29067
29068
29069
29070
29071
29072
29073
29074
29075
29076
29077
29078
29079
29080
29081
29082
29083
29084
29085
29086
29087
29088
29089
29090
29091
29092
29093
29094
29095
29096
29097
29098
29099
29100
29101
29102
29103
29104
29105
29106
29107
29108
29109
29110
29111
29112
29113
29114
29115
29116
29117
29118
29119
29120
29121
29122
29123
29124
29125
29126
29127
29128
29129
29130
29131
29132
29133
29134
29135
29136
29137
29138
29139
29140
29141
29142
29143
29144
29145
29146
29147
29148
29149
29150
29151
29152
29153
29154
29155
29156
29157
29158
29159
29160
29161
29162
29163
29164
29165
29166
29167
29168
29169
29170
29171
29172
29173
29174
29175
29176
29177
29178
29179
29180
29181
29182
29183
29184
29185
29186
29187
29188
29189
29190
29191
29192
29193
29194
29195
29196
29197
29198
29199
29200
29201
29202
29203
29204
29205
29206
29207
29208
29209
29210
29211
29212
29213
29214
29215
29216
29217
29218
29219
29220
29221
29222
29223
29224
29225
29226
29227
29228
29229
29230
29231
29232
29233
29234
29235
29236
29237
29238
29239
29240
29241
29242
29243
29244
29245
29246
29247
29248
29249
29250
29251
29252
29253
29254
29255
29256
29257
29258
29259
29260
29261
29262
29263
29264
29265
29266
29267
29268
29269
29270
29271
29272
29273
29274
29275
29276
29277
29278
29279
29280
29281
29282
29283
29284
29285
29286
29287
29288
29289
29290
29291
29292
29293
29294
29295
29296
29297
29298
29299
29300
29301
29302
29303
29304
29305
29306
29307
29308
29309
29310
29311
29312
29313
29314
29315
29316
29317
29318
29319
29320
29321
29322
29323
29324
29325
29326
29327
29328
29329
29330
29331
29332
29333
29334
29335
29336
29337
29338
29339
29340
29341
29342
29343
29344
29345
29346
29347
29348
29349
29350
29351
29352
29353
29354
29355
29356
29357
29358
29359
29360
29361
29362
29363
29364
29365
29366
29367
29368
29369
29370
29371
29372
29373
29374
29375
29376
29377
29378
29379
29380
29381
29382
29383
29384
29385
29386
29387
29388
29389
29390
29391
29392
29393
29394
29395
29396
29397
29398
29399
29400
29401
29402
29403
29404
29405
29406
29407
29408
29409
29410
29411
29412
29413
29414
29415
29416
29417
29418
29419
29420
29421
29422
29423
29424
29425
29426
29427
29428
29429
29430
29431
29432
29433
29434
29435
29436
29437
29438
29439
29440
29441
29442
29443
29444
29445
29446
29447
29448
29449
29450
29451
29452
29453
29454
29455
29456
29457
29458
29459
29460
29461
29462
29463
29464
29465
29466
29467
29468
29469
29470
29471
29472
29473
29474
29475
29476
29477
29478
29479
29480
29481
29482
29483
29484
29485
29486
29487
29488
29489
29490
29491
29492
29493
29494
29495
29496
29497
29498
29499
29500
29501
29502
29503
29504
29505
29506
29507
29508
29509
29510
29511
29512
29513
29514
29515
29516
29517
29518
29519
29520
29521
29522
29523
29524
29525
29526
29527
29528
29529
29530
29531
29532
29533
29534
29535
29536
29537
29538
29539
29540
29541
29542
29543
29544
29545
29546
29547
29548
29549
29550
29551
29552
29553
29554
29555
29556
29557
29558
29559
29560
29561
29562
29563
29564
29565
29566
29567
29568
29569
29570
29571
29572
29573
29574
29575
29576
29577
29578
29579
29580
29581
29582
29583
29584
29585
29586
29587
29588
29589
29590
29591
29592
29593
29594
29595
29596
29597
29598
29599
29600
29601
29602
29603
29604
29605
29606
29607
29608
29609
29610
29611
29612
29613
29614
29615
29616
29617
29618
29619
29620
29621
29622
29623
29624
29625
29626
29627
29628
29629
29630
29631
29632
29633
29634
29635
29636
29637
29638
29639
29640
29641
29642
29643
29644
29645
29646
29647
29648
29649
29650
29651
29652
29653
29654
29655
29656
29657
29658
29659
29660
29661
29662
29663
29664
29665
29666
29667
29668
29669
29670
29671
29672
29673
29674
29675
29676
29677
29678
29679
29680
29681
29682
29683
29684
29685
29686
29687
29688
29689
29690
29691
29692
29693
29694
29695
29696
29697
29698
29699
29700
29701
29702
29703
29704
29705
29706
29707
29708
29709
29710
29711
29712
29713
29714
29715
29716
29717
29718
29719
29720
29721
29722
29723
29724
29725
29726
29727
29728
29729
29730
29731
29732
29733
29734
29735
29736
29737
29738
29739
29740
29741
29742
29743
29744
29745
29746
29747
29748
29749
29750
29751
29752
29753
29754
29755
29756
29757
29758
29759
29760
29761
29762
29763
29764
29765
29766
29767
29768
29769
29770
29771
29772
29773
29774
29775
29776
29777
29778
29779
29780
29781
29782
29783
29784
29785
29786
29787
29788
29789
29790
29791
29792
29793
29794
29795
29796
29797
29798
29799
29800
29801
29802
29803
29804
29805
29806
29807
29808
29809
29810
29811
29812
29813
29814
29815
29816
29817
29818
29819
29820
29821
29822
29823
29824
29825
29826
29827
29828
29829
29830
29831
29832
29833
29834
29835
29836
29837
29838
29839
29840
29841
29842
29843
29844
29845
29846
29847
29848
29849
29850
29851
29852
29853
29854
29855
29856
29857
29858
29859
29860
29861
29862
29863
29864
29865
29866
29867
29868
29869
29870
29871
29872
29873
29874
29875
29876
29877
29878
29879
29880
29881
29882
29883
29884
29885
29886
29887
29888
29889
29890
29891
29892
29893
29894
29895
29896
29897
29898
29899
29900
29901
29902
29903
29904
29905
29906
29907
29908
29909
29910
29911
29912
29913
29914
29915
29916
29917
29918
29919
29920
29921
29922
29923
29924
29925
29926
29927
29928
29929
29930
29931
29932
29933
29934
29935
29936
29937
29938
29939
29940
29941
29942
29943
29944
29945
29946
29947
29948
29949
29950
29951
29952
29953
29954
29955
29956
29957
29958
29959
29960
29961
29962
29963
29964
29965
29966
29967
29968
29969
29970
29971
29972
29973
29974
29975
29976
29977
29978
29979
29980
29981
29982
29983
29984
29985
29986
29987
29988
29989
29990
29991
29992
29993
29994
29995
29996
29997
29998
29999
30000
30001
30002
30003
30004
30005
30006
30007
30008
30009
30010
30011
30012
30013
30014
30015
30016
30017
30018
30019
30020
30021
30022
30023
30024
30025
30026
30027
30028
30029
30030
30031
30032
30033
30034
30035
30036
30037
30038
30039
30040
30041
30042
30043
30044
30045
30046
30047
30048
30049
30050
30051
30052
30053
30054
30055
30056
30057
30058
30059
30060
30061
30062
30063
30064
30065
30066
30067
30068
30069
30070
30071
30072
30073
30074
30075
30076
30077
30078
30079
30080
30081
30082
30083
30084
30085
30086
30087
30088
30089
30090
30091
30092
30093
30094
30095
30096
30097
30098
30099
30100
30101
30102
30103
30104
30105
30106
30107
30108
30109
30110
30111
30112
30113
30114
30115
30116
30117
30118
30119
30120
30121
30122
30123
30124
30125
30126
30127
30128
30129
30130
30131
30132
30133
30134
30135
30136
30137
30138
30139
30140
30141
30142
30143
30144
30145
30146
30147
30148
30149
30150
30151
30152
30153
30154
30155
30156
30157
30158
30159
30160
30161
30162
30163
30164
30165
30166
30167
30168
30169
30170
30171
30172
30173
30174
30175
30176
30177
30178
30179
30180
30181
30182
30183
30184
30185
30186
30187
30188
30189
30190
30191
30192
30193
30194
30195
30196
30197
30198
30199
30200
30201
30202
30203
30204
30205
30206
30207
30208
30209
30210
30211
30212
30213
30214
30215
30216
30217
30218
30219
30220
30221
30222
30223
30224
30225
30226
30227
30228
30229
30230
30231
30232
30233
30234
30235
30236
30237
30238
30239
30240
30241
30242
30243
30244
30245
30246
30247
30248
30249
30250
30251
30252
30253
30254
30255
30256
30257
30258
30259
30260
30261
30262
30263
30264
30265
30266
30267
30268
30269
30270
30271
30272
30273
30274
30275
30276
30277
30278
30279
30280
30281
30282
30283
30284
30285
30286
30287
30288
30289
30290
30291
30292
30293
30294
30295
30296
30297
30298
30299
30300
30301
30302
30303
30304
30305
30306
30307
30308
30309
30310
30311
30312
30313
30314
30315
30316
30317
30318
30319
30320
30321
30322
30323
30324
30325
30326
30327
30328
30329
30330
30331
30332
30333
30334
30335
30336
30337
30338
30339
30340
30341
30342
30343
30344
30345
30346
30347
30348
30349
30350
30351
30352
30353
30354
30355
30356
30357
30358
30359
30360
30361
30362
30363
30364
30365
30366
30367
30368
30369
30370
30371
30372
30373
30374
30375
30376
30377
30378
30379
30380
30381
30382
30383
30384
30385
30386
30387
30388
30389
30390
30391
30392
30393
30394
30395
30396
30397
30398
30399
30400
30401
30402
30403
30404
30405
30406
30407
30408
30409
30410
30411
30412
30413
30414
30415
30416
30417
30418
30419
30420
30421
30422
30423
30424
30425
30426
30427
30428
30429
30430
30431
30432
30433
30434
30435
30436
30437
30438
30439
30440
30441
30442
30443
30444
30445
30446
30447
30448
30449
30450
30451
30452
30453
30454
30455
30456
30457
30458
30459
30460
30461
30462
30463
30464
30465
30466
30467
30468
30469
30470
30471
30472
30473
30474
30475
30476
30477
30478
30479
30480
30481
30482
30483
30484
30485
30486
30487
30488
30489
30490
30491
30492
30493
30494
30495
30496
30497
30498
30499
30500
30501
30502
30503
30504
30505
30506
30507
30508
30509
30510
30511
30512
30513
30514
30515
30516
30517
30518
30519
30520
30521
30522
30523
30524
30525
30526
30527
30528
30529
30530
30531
30532
30533
30534
30535
30536
30537
30538
30539
30540
30541
30542
30543
30544
30545
30546
30547
30548
30549
30550
30551
30552
30553
30554
30555
30556
30557
30558
30559
30560
30561
30562
30563
30564
30565
30566
30567
30568
30569
30570
30571
30572
30573
30574
30575
30576
30577
30578
30579
30580
30581
30582
30583
30584
30585
30586
30587
30588
30589
30590
30591
30592
30593
30594
30595
30596
30597
30598
30599
30600
30601
30602
30603
30604
30605
30606
30607
30608
30609
30610
30611
30612
30613
30614
30615
30616
30617
30618
30619
30620
30621
30622
30623
30624
30625
30626
30627
30628
30629
30630
30631
30632
30633
30634
30635
30636
30637
30638
30639
30640
30641
30642
30643
30644
30645
30646
30647
30648
30649
30650
30651
30652
30653
30654
30655
30656
30657
30658
30659
30660
30661
30662
30663
30664
30665
30666
30667
30668
30669
30670
30671
30672
30673
30674
30675
30676
30677
30678
30679
30680
30681
30682
30683
30684
30685
30686
30687
30688
30689
30690
30691
30692
30693
30694
30695
30696
30697
30698
30699
30700
30701
30702
30703
30704
30705
30706
30707
30708
30709
30710
30711
30712
30713
30714
30715
30716
30717
30718
30719
30720
30721
30722
30723
30724
30725
30726
30727
30728
30729
30730
30731
30732
30733
30734
30735
30736
30737
30738
30739
30740
30741
30742
30743
30744
30745
30746
30747
30748
30749
30750
30751
30752
30753
30754
30755
30756
30757
30758
30759
30760
30761
30762
30763
30764
30765
30766
30767
30768
30769
30770
30771
30772
30773
30774
30775
30776
30777
30778
30779
30780
30781
30782
30783
30784
30785
30786
30787
30788
30789
30790
30791
30792
30793
30794
30795
30796
30797
30798
30799
30800
30801
30802
30803
30804
30805
30806
30807
30808
30809
30810
30811
30812
30813
30814
30815
30816
30817
30818
30819
30820
30821
30822
30823
30824
30825
30826
30827
30828
30829
30830
30831
30832
30833
30834
30835
30836
30837
30838
30839
30840
30841
30842
30843
30844
30845
30846
30847
30848
30849
30850
30851
30852
30853
30854
30855
30856
30857
30858
30859
30860
30861
30862
30863
30864
30865
30866
30867
30868
30869
30870
30871
30872
30873
30874
30875
30876
30877
30878
30879
30880
30881
30882
30883
30884
30885
30886
30887
30888
30889
30890
30891
30892
30893
30894
30895
30896
30897
30898
30899
30900
30901
30902
30903
30904
30905
30906
30907
30908
30909
30910
30911
30912
30913
30914
30915
30916
30917
30918
30919
30920
30921
30922
30923
30924
30925
30926
30927
30928
30929
30930
30931
30932
30933
30934
30935
30936
30937
30938
30939
30940
30941
30942
30943
30944
30945
30946
30947
30948
30949
30950
30951
30952
30953
30954
30955
30956
30957
30958
30959
30960
30961
30962
30963
30964
30965
30966
30967
30968
30969
30970
30971
30972
30973
30974
30975
30976
30977
30978
30979
30980
30981
30982
30983
30984
30985
30986
30987
30988
30989
30990
30991
30992
30993
30994
30995
30996
30997
30998
30999
31000
31001
31002
31003
31004
31005
31006
31007
31008
31009
31010
31011
31012
31013
31014
31015
31016
31017
31018
31019
31020
31021
31022
31023
31024
31025
31026
31027
31028
31029
31030
31031
31032
31033
31034
31035
31036
31037
31038
31039
31040
31041
31042
31043
31044
31045
31046
31047
31048
31049
31050
31051
31052
31053
31054
31055
31056
31057
31058
31059
31060
31061
31062
31063
31064
31065
31066
31067
31068
31069
31070
31071
31072
31073
31074
31075
31076
31077
31078
31079
31080
31081
31082
31083
31084
31085
31086
31087
31088
31089
31090
31091
31092
31093
31094
31095
31096
31097
31098
31099
31100
31101
31102
31103
31104
31105
31106
31107
31108
31109
31110
31111
31112
31113
31114
31115
31116
31117
31118
31119
31120
31121
31122
31123
31124
31125
31126
31127
31128
31129
31130
31131
31132
31133
31134
31135
31136
31137
31138
31139
31140
31141
31142
31143
31144
31145
31146
31147
31148
31149
31150
31151
31152
31153
31154
31155
31156
31157
31158
31159
31160
31161
31162
31163
31164
31165
31166
31167
31168
31169
31170
31171
31172
31173
31174
31175
31176
31177
31178
31179
31180
31181
31182
31183
31184
31185
31186
31187
31188
31189
31190
31191
31192
31193
31194
31195
31196
31197
31198
31199
31200
31201
31202
31203
31204
31205
31206
31207
31208
31209
31210
31211
31212
31213
31214
31215
31216
31217
31218
31219
31220
31221
31222
31223
31224
31225
31226
31227
31228
31229
31230
31231
31232
31233
31234
31235
31236
31237
31238
31239
31240
31241
31242
31243
31244
31245
31246
31247
31248
31249
31250
31251
31252
31253
31254
31255
31256
31257
31258
31259
31260
31261
31262
31263
31264
31265
31266
31267
31268
31269
31270
31271
31272
31273
31274
31275
31276
31277
31278
31279
31280
31281
31282
31283
31284
31285
31286
31287
31288
31289
31290
31291
31292
31293
31294
31295
31296
31297
31298
31299
31300
31301
31302
31303
31304
31305
31306
31307
31308
31309
31310
31311
31312
31313
31314
31315
31316
31317
31318
31319
31320
31321
31322
31323
31324
31325
31326
31327
31328
31329
31330
31331
31332
31333
31334
31335
31336
31337
31338
31339
31340
31341
31342
31343
31344
31345
31346
31347
31348
31349
31350
31351
31352
31353
31354
31355
31356
31357
31358
31359
31360
31361
31362
31363
31364
31365
31366
31367
31368
31369
31370
31371
31372
31373
31374
31375
31376
31377
31378
31379
31380
31381
31382
31383
31384
31385
31386
31387
31388
31389
31390
31391
31392
31393
31394
31395
31396
31397
31398
31399
31400
31401
31402
31403
31404
31405
31406
31407
31408
31409
31410
31411
31412
31413
31414
31415
31416
31417
31418
31419
31420
31421
31422
31423
31424
31425
31426
31427
31428
31429
31430
31431
31432
31433
31434
31435
31436
31437
31438
31439
31440
31441
31442
31443
31444
31445
31446
31447
31448
31449
31450
31451
31452
31453
31454
31455
31456
31457
31458
31459
31460
31461
31462
31463
31464
31465
31466
31467
31468
31469
31470
31471
31472
31473
31474
31475
31476
31477
31478
31479
31480
31481
31482
31483
31484
31485
31486
31487
31488
31489
31490
31491
31492
31493
31494
31495
31496
31497
31498
31499
31500
31501
31502
31503
31504
31505
31506
31507
31508
31509
31510
31511
31512
31513
31514
31515
31516
31517
31518
31519
31520
31521
31522
31523
31524
31525
31526
31527
31528
31529
31530
31531
31532
31533
31534
31535
31536
31537
31538
31539
31540
31541
31542
31543
31544
31545
31546
31547
31548
31549
31550
31551
31552
31553
31554
31555
31556
31557
31558
31559
31560
31561
31562
31563
31564
31565
31566
31567
31568
31569
31570
31571
31572
31573
31574
31575
31576
31577
31578
31579
31580
31581
31582
31583
31584
31585
31586
31587
31588
31589
31590
31591
31592
31593
31594
31595
31596
31597
31598
31599
31600
31601
31602
31603
31604
31605
31606
31607
31608
31609
31610
31611
31612
31613
31614
31615
31616
31617
31618
31619
31620
31621
31622
31623
31624
31625
31626
31627
31628
31629
31630
31631
31632
31633
31634
31635
31636
31637
31638
31639
31640
31641
31642
31643
31644
31645
31646
31647
31648
31649
31650
31651
31652
31653
31654
31655
31656
31657
31658
31659
31660
31661
31662
31663
31664
31665
31666
31667
31668
31669
31670
31671
31672
31673
31674
31675
31676
31677
31678
31679
31680
31681
31682
31683
31684
31685
31686
31687
31688
31689
31690
31691
31692
31693
31694
31695
31696
31697
31698
31699
31700
31701
31702
31703
31704
31705
31706
31707
31708
31709
31710
31711
31712
31713
31714
31715
31716
31717
31718
31719
31720
31721
31722
31723
31724
31725
31726
31727
31728
31729
31730
31731
31732
31733
31734
31735
31736
31737
31738
31739
31740
31741
31742
31743
31744
31745
31746
31747
31748
31749
31750
31751
31752
31753
31754
31755
31756
31757
31758
31759
31760
31761
31762
31763
31764
31765
31766
31767
31768
31769
31770
31771
31772
31773
31774
31775
31776
31777
31778
31779
31780
31781
31782
31783
31784
31785
31786
31787
31788
31789
31790
31791
31792
31793
31794
31795
31796
31797
31798
31799
31800
31801
31802
31803
31804
31805
31806
31807
31808
31809
31810
31811
31812
31813
31814
31815
31816
31817
31818
31819
31820
31821
31822
31823
31824
31825
31826
31827
31828
31829
31830
31831
31832
31833
31834
31835
31836
31837
31838
31839
31840
31841
31842
31843
31844
31845
31846
31847
31848
31849
31850
31851
31852
31853
31854
31855
31856
31857
31858
31859
31860
31861
31862
31863
31864
31865
31866
31867
31868
31869
31870
31871
31872
31873
31874
31875
31876
31877
31878
31879
31880
31881
31882
31883
31884
31885
31886
31887
31888
31889
31890
31891
31892
31893
31894
31895
31896
31897
31898
31899
31900
31901
31902
31903
31904
31905
31906
31907
31908
31909
31910
31911
31912
31913
31914
31915
31916
31917
31918
31919
31920
31921
31922
31923
31924
31925
31926
31927
31928
31929
31930
31931
31932
31933
31934
31935
31936
31937
31938
31939
31940
31941
31942
31943
31944
31945
31946
31947
31948
31949
31950
31951
31952
31953
31954
31955
31956
31957
31958
31959
31960
31961
31962
31963
31964
31965
31966
31967
31968
31969
31970
31971
31972
31973
31974
31975
31976
31977
31978
31979
31980
31981
31982
31983
31984
31985
31986
31987
31988
31989
31990
31991
31992
31993
31994
31995
31996
31997
31998
31999
32000
32001
32002
32003
32004
32005
32006
32007
32008
32009
32010
32011
32012
32013
32014
32015
32016
32017
32018
32019
32020
32021
32022
32023
32024
32025
32026
32027
32028
32029
32030
32031
32032
32033
32034
32035
32036
32037
32038
32039
32040
32041
32042
32043
32044
32045
32046
32047
32048
32049
32050
32051
32052
32053
32054
32055
32056
32057
32058
32059
32060
32061
32062
32063
32064
32065
32066
32067
32068
32069
32070
32071
32072
32073
32074
32075
32076
32077
32078
32079
32080
32081
32082
32083
32084
32085
32086
32087
32088
32089
32090
32091
32092
32093
32094
32095
32096
32097
32098
32099
32100
32101
32102
32103
32104
32105
32106
32107
32108
32109
32110
32111
32112
32113
32114
32115
32116
32117
32118
32119
32120
32121
32122
32123
32124
32125
32126
32127
32128
32129
32130
32131
32132
32133
32134
32135
32136
32137
32138
32139
32140
32141
32142
32143
32144
32145
32146
32147
32148
32149
32150
32151
32152
32153
32154
32155
32156
32157
32158
32159
32160
32161
32162
32163
32164
32165
32166
32167
32168
32169
32170
32171
32172
32173
32174
32175
32176
32177
32178
32179
32180
32181
32182
32183
32184
32185
32186
32187
32188
32189
32190
32191
32192
32193
32194
32195
32196
32197
32198
32199
32200
32201
32202
32203
32204
32205
32206
32207
32208
32209
32210
32211
32212
32213
32214
32215
32216
32217
32218
32219
32220
32221
32222
32223
32224
32225
32226
32227
32228
32229
32230
32231
32232
32233
32234
32235
32236
32237
32238
32239
32240
32241
32242
32243
32244
32245
32246
32247
32248
32249
32250
32251
32252
32253
32254
32255
32256
32257
32258
32259
32260
32261
32262
32263
32264
32265
32266
32267
32268
32269
32270
32271
32272
32273
32274
32275
32276
32277
32278
32279
32280
32281
32282
32283
32284
32285
32286
32287
32288
32289
32290
32291
32292
32293
32294
32295
32296
32297
32298
32299
32300
32301
32302
32303
32304
32305
32306
32307
32308
32309
32310
32311
32312
32313
32314
32315
32316
32317
32318
32319
32320
32321
32322
32323
32324
32325
32326
32327
32328
32329
32330
32331
32332
32333
32334
32335
32336
32337
32338
32339
32340
32341
32342
32343
32344
32345
32346
32347
32348
32349
32350
32351
32352
32353
32354
32355
32356
32357
32358
32359
32360
32361
32362
32363
32364
32365
32366
32367
32368
32369
32370
32371
32372
32373
32374
32375
32376
32377
32378
32379
32380
32381
32382
32383
32384
32385
32386
32387
32388
32389
32390
32391
32392
32393
32394
32395
32396
32397
32398
32399
32400
32401
32402
32403
32404
32405
32406
32407
32408
32409
32410
32411
32412
32413
32414
32415
32416
32417
32418
32419
32420
32421
32422
32423
32424
32425
32426
32427
32428
32429
32430
32431
32432
32433
32434
32435
32436
32437
32438
32439
32440
32441
32442
32443
32444
32445
32446
32447
32448
32449
32450
32451
32452
32453
32454
32455
32456
32457
32458
32459
32460
32461
32462
32463
32464
32465
32466
32467
32468
32469
32470
32471
32472
32473
32474
32475
32476
32477
32478
32479
32480
32481
32482
32483
32484
32485
32486
32487
32488
32489
32490
32491
32492
32493
32494
32495
32496
32497
32498
32499
32500
32501
32502
32503
32504
32505
32506
32507
32508
32509
32510
32511
32512
32513
32514
32515
32516
32517
32518
32519
32520
32521
32522
32523
32524
32525
32526
32527
32528
32529
32530
32531
32532
32533
32534
32535
32536
32537
32538
32539
32540
32541
32542
32543
32544
32545
32546
32547
32548
32549
32550
32551
32552
32553
32554
32555
32556
32557
32558
32559
32560
32561
32562
32563
32564
32565
32566
32567
32568
32569
32570
32571
32572
32573
32574
32575
32576
32577
32578
32579
32580
32581
32582
32583
32584
32585
32586
32587
32588
32589
32590
32591
32592
32593
32594
32595
32596
32597
32598
32599
32600
32601
32602
32603
32604
32605
32606
32607
32608
32609
32610
32611
32612
32613
32614
32615
32616
32617
32618
32619
32620
32621
32622
32623
32624
32625
32626
32627
32628
32629
32630
32631
32632
32633
32634
32635
32636
32637
32638
32639
32640
32641
32642
32643
32644
32645
32646
32647
32648
32649
32650
32651
32652
32653
32654
32655
32656
32657
32658
32659
32660
32661
32662
32663
32664
32665
32666
32667
32668
32669
32670
32671
32672
32673
32674
32675
32676
32677
32678
32679
32680
32681
32682
32683
32684
32685
32686
32687
32688
32689
32690
32691
32692
32693
32694
32695
32696
32697
32698
32699
32700
32701
32702
32703
32704
32705
32706
32707
32708
32709
32710
32711
32712
32713
32714
32715
32716
32717
32718
32719
32720
32721
32722
32723
32724
32725
32726
32727
32728
32729
32730
32731
32732
32733
32734
32735
32736
32737
32738
32739
32740
32741
32742
32743
32744
32745
32746
32747
32748
32749
32750
32751
32752
32753
32754
32755
32756
32757
32758
32759
32760
32761
32762
32763
32764
32765
32766
32767
32768
32769
32770
32771
32772
32773
32774
32775
32776
32777
32778
32779
32780
32781
32782
32783
32784
32785
32786
32787
32788
32789
32790
32791
32792
32793
32794
32795
32796
32797
32798
32799
32800
32801
32802
32803
32804
32805
32806
32807
32808
32809
32810
32811
32812
32813
32814
32815
32816
32817
32818
32819
32820
32821
32822
32823
32824
32825
32826
32827
32828
32829
32830
32831
32832
32833
32834
32835
32836
32837
32838
32839
32840
32841
32842
32843
32844
32845
32846
32847
32848
32849
32850
32851
32852
32853
32854
32855
32856
32857
32858
32859
32860
32861
32862
32863
32864
32865
32866
32867
32868
32869
32870
32871
32872
32873
32874
32875
32876
32877
32878
32879
32880
32881
32882
32883
32884
32885
32886
32887
32888
32889
32890
32891
32892
32893
32894
32895
32896
32897
32898
32899
32900
32901
32902
32903
32904
32905
32906
32907
32908
32909
32910
32911
32912
32913
32914
32915
32916
32917
32918
32919
32920

 
/* X Communication module for terminals which understand the X protocol.

Copyright (C) 1989, 1993-2024 Free Software Foundation, Inc.

This file is part of GNU Emacs.

GNU Emacs is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or (at
your option) any later version.

GNU Emacs is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
GNU General Public License for more details.

You should have received a copy of the GNU General Public License
along with GNU Emacs.  If not, see <https://www.gnu.org/licenses/>.  */

/* New display code by Gerd Moellmann <gerd@gnu.org>.  */
/* Xt features made by Fred Pierresteguy.  */

/* X window system support for GNU Emacs

   This file is part of the X window system support for GNU Emacs.  It
   contains subroutines comprising the redisplay interface, setting up
   scroll bars and widgets, and handling input.

   X WINDOW SYSTEM

   The X Window System is a windowing system for bitmap graphics
   displays which originated at MIT in 1984.  Version 11, which is
   currently supported by Emacs, first appeared in September 1987.

   X has a long history and has been developed by many different
   organizations over the years; at present, it is being primarily
   developed by the X.Org Foundation.  It is the main window system
   that Emacs is developed and tested against, and X version 10 was
   the first window system that Emacs was ported to.  As a consequence
   of its age and wide availability, X contains many idiosyncrasies,
   but that has not prevented it from becoming the dominant free
   window system, and the platform of reference for all GUI code in
   Emacs.

   Some of what is explained below also applies to the other window
   systems that Emacs supports, to varying degrees.  YMMV.

   INPUT

   Emacs handles input by running pselect in a loop, which returns
   whenever there is input available on the connection to the X
   server.  On some systems, Emacs also arranges for any new input on
   that connection to send an asynchronous signal.  Whenever pselect
   returns, or such a signal is received and input is not blocked,
   XTread_socket is called and translates X11 events read by Xlib into
   struct input_events, which are then stored in the keyboard buffer,
   to be processed and acted upon at some later time.  The function
   handle_one_xevent is responsible for handling core events after
   they are filtered, and filtering X Input Extension events.  It also
   performs actions on some special events, such as updating the
   dimensions of a frame after a ConfigureNotify is sent by the X
   server to inform us that it changed.

   Before such events are translated, an Emacs build with
   internationalization enabled (the default since X11R6) will filter
   events through an X Input Method (XIM) or GTK, which might decide
   to intercept the event and send a different one in its place, for
   reasons such as enabling the user to insert international
   characters that aren't on his keyboard by typing a sequence of
   characters which are.  See the function x_filter_event and its
   callers for more details.

   Events that cause Emacs to quit are treated specially by the code
   that stores them in the keyboard buffer and generally cause an
   immediate interrupt.  Such an interrupt can lead to a longjmp from
   the code that stored the keyboard event, which isn't safe inside
   XTread_socket.  To avoid this problem, XTread_socket is provided a
   special event buffer named hold_quit.  When a quit event is
   encountered, it is stored inside this special buffer, which will
   cause the keyboard code that called XTread_socket to store it at a
   later time when it is safe to do so.

   handle_one_xevent will generally have to determine which frame an
   event should be attributed to.  This is not easy, because events
   can come from multiple X windows, and a frame can also have
   multiple windows.  handle_one_xevent usually calls the function
   x_any_window_to_frame, which searches for a frame by toplevel
   window and widget windows.  There are also some other functions for
   searching by specific types of window, such as
   x_top_window_to_frame (which only searches for frames by toplevel
   window), and x_menubar_window_to_frame (which will only search
   through frame menu bars).

   INPUT FOCUS

   Under X, the window where keyboard input is sent is not always
   explicitly defined.  When there is a focus window, it receives what
   is referred to as "explicit focus", but when there is none, it
   receives "implicit focus" whenever the pointer enters it, and loses
   that focus when the pointer leaves.  When the toplevel window of a
   frame receives an explicit focus event (FocusIn or FocusOut), we
   treat that frame as having the current input focus, but when there
   is no focus window, we treat each frame as having the input focus
   whenever the pointer enters it, and undo that treatment when the
   pointer leaves it.  See the callers of x_detect_focus_change for
   more details.

   REDISPLAY

   The redisplay engine communicates with X through the "redisplay
   interface", which is a structure containing pointers to functions
   which output graphics to a frame.

   Some of the functions included in the redisplay interface include
   `x_clear_frame_area', which is called by the display engine when it
   determines that a part of the display has to be cleared,
   x_draw_window_cursor, which is called to perform the calculations
   necessary to display the cursor glyph with a special "highlight"
   (more on that later) and to set the input method spot location.

   Most of the actual display is performed by the function
   `x_draw_glyph_string', also included in the redisplay interface.
   It takes a list of glyphs of the same type and face, computes the
   correct graphics context for the string through the function
   `x_set_glyph_string_gc', and draws whichever glyphs it might
   contain, along with decorations such as the box face, underline and
   overline.  That list is referred to as a "glyph string".

   GRAPHICS CONTEXTS

   A graphics context ("GC") is an X server-side object which contains
   drawing attributes such as fill style, stipple, and foreground and
   background pixel values.

   Usually, one graphics context is computed for each face when it is
   about to be displayed for the first time, and this graphics context
   is the one which is used for future X drawing operations in a glyph
   string with that face.  (See `prepare_face_for_display' in
   xfaces.c).

   However, when drawing glyph strings for special display elements
   such as the cursor, or mouse sensitive text, different GCs may be
   used.  When displaying the cursor, for example, the frame's cursor
   graphics context is used for the common case where the cursor is
   drawn with the default font, and the colors of the string's face
   are the same as the default face.  In all other cases, a temporary
   graphics context is created with the foreground and background
   colors of the cursor face adjusted to ensure that the cursor can be
   distinguished from its surroundings and that the text inside the
   cursor stays visible.

   Various graphics contexts are also calculated when the frame is
   created by the function `x_make_gcs' in xfns.c, and are adjusted
   whenever the foreground or background colors change.  The "normal"
   graphics context is used for operations performed without a face,
   and always corresponds to the foreground and background colors of
   the frame's default face, the "reverse" graphics context is used to
   draw text in inverse video, and the cursor graphics context is used
   to display the cursor in the most common case.

   N.B. that some of the other window systems supported by use an
   emulation of graphics contexts to hold the foreground and
   background colors used in a glyph string, while the some others
   ports compute those colors directly based on the colors of the
   string's face and its highlight, but only on X are graphics
   contexts a data structure inherent to the window system.

   COLOR ALLOCATION

   In (and only in) X, pixel values for colors are not guaranteed to
   correspond to their individual components.  The rules for
   converting colors into pixel values are defined by the visual class
   of each display opened by Emacs.  When a display is opened, a
   suitable visual is obtained from the X server, and a colormap is
   created based on that visual, which is then used for each frame
   created.

   The colormap is then used by the X server to convert pixel values
   from a frame created by Emacs into actual colors which are output
   onto the physical display.

   When the visual class is TrueColor, the colormap will be indexed
   based on the red, green, and blue (RGB) components of the pixel
   values, and the colormap will be statically allocated so as to
   contain linear ramps for each component.  As such, most of the
   color allocation described below is bypassed, and the pixel values
   are computed directly from the color.

   Otherwise, each time Emacs wants a pixel value that corresponds to
   a color, Emacs has to ask the X server to obtain the pixel value
   that corresponds to a "color cell" containing the color (or a close
   approximation) from the colormap.  Exactly how this is accomplished
   further depends on the visual class, since some visuals have
   immutable colormaps which contain color cells with pre-defined
   values, while others have colormaps where the color cells are
   dynamically allocated by individual X clients.

   With visuals that have a visual class of StaticColor and StaticGray
   (where the former is the case), the X server is asked to procure
   the pixel value of a color cell that contains the closest
   approximation of the color which Emacs wants.  On the other hand,
   when the visual class is DirectColor, PseudoColor, or GrayScale,
   where color cells are dynamically allocated by clients, Emacs asks
   the X server to allocate a color cell containing the desired color,
   and uses its pixel value.

   (If the color already exists, the X server returns an existing color
   cell, but increases its reference count, so it still has to be
   freed afterwards.)

   Otherwise, if no color could be allocated (due to the colormap
   being full), Emacs looks for a color cell inside the colormap
   closest to the desired color, and uses its pixel value instead.

   Since the capacity of a colormap is finite, X clients have to take
   special precautions in order to not allocate too many color cells
   that are never used.  Emacs allocates its color cells when a face
   is being realized or when a frame changes its foreground and
   background colors, and releases them alongside the face or frame.
   See calls to `unload_color' and `load_color' in xterm.c, xfaces.c
   and xfns.c for more details.

   The driving logic behind color allocation is in
   `x_alloc_nearest_color_1', while the optimization for TrueColor
   visuals is in `x_make_truecolor_pixel'.  Also see `x_query_colors`,
   which is used to determine the color values for given pixel
   values.

   In other window systems supported by Emacs, color allocation is
   handled by the window system itself, to whom Emacs simply passes 24
   (or 32-bit) RGB values.

   OPTIONAL FEATURES

   While X servers and client libraries tend to come with many
   extensions to the core X11R6 protocol, dependencies on anything
   other than the core X11R6 protocol and Xlib should be optional at
   both compile-time and runtime.  Emacs should also not crash
   regardless of what combination of X server and client-side features
   are present.  For example, if you are developing a feature that
   will need Xfixes, then add a test in configure.ac for the library
   at compile-time which defines `HAVE_XFIXES', like this:

     ### Use Xfixes (-lXfixes) if available
     HAVE_XFIXES=no
     if test "${HAVE_X11}" = "yes"; then
       XFIXES_REQUIRED=4.0.0
       XFIXES_MODULES="xfixes >= $XFIXES_REQUIRED"
       EMACS_CHECK_MODULES([XFIXES], [$XFIXES_MODULES])
       if test $HAVE_XFIXES = no; then
	 # Test old way in case pkg-config doesn't have it (older machines).
	 AC_CHECK_HEADER([X11/extensions/Xfixes.h],
	   [AC_CHECK_LIB([Xfixes], [XFixesHideCursor], [HAVE_XFIXES=yes])])
	 if test $HAVE_XFIXES = yes; then
	   XFIXES_LIBS=-lXfixes
	 fi
       fi
       if test $HAVE_XFIXES = yes; then
	 AC_DEFINE([HAVE_XFIXES], [1],
	   [Define to 1 if you have the Xfixes extension.])
       fi
     fi
     AC_SUBST([XFIXES_CFLAGS])
     AC_SUBST([XFIXES_LIBS])

  Then, make sure to adjust CFLAGS and LIBES in src/Makefile.in and
  add the new XFIXES_CFLAGS and XFIXES_LIBS variables to
  msdos/sed1v2.inp.  (The latter has to be adjusted for any new
  variables that are included in CFLAGS and LIBES even if the
  libraries are not used by the MS-DOS port.)

  Finally, add some fields in `struct x_display_info' which specify
  the major and minor versions of the extension, and whether or not to
  support them.  They (and their accessors) should be protected by the
  `HAVE_XFIXES' preprocessor conditional.  Then, these fields should
  be set in `x_term_init', and all Xfixes calls must be protected by
  not only the preprocessor conditional, but also by checks against
  those variables.

  X TOOLKIT SUPPORT

  Emacs supports being built with many different toolkits (and also no
  toolkit at all), which provide decorations such as menu bars and
  scroll bars, along with handy features like file panels, dialog
  boxes, font panels, and popup menus.  Those configurations can
  roughly be classified as belonging to one of three categories:

    - Using no toolkit at all.
    - Using the X Toolkit Intrinsics (Xt).
    - Using GTK.

  The no toolkit configuration is the simplest: no toolkit widgets are
  used, Emacs uses its own implementation of scroll bars, and the
  XMenu library that came with X11R2 and earlier versions of X is used
  for popup menus.  There is also no complicated window structure to
  speak of.

  The Xt configurations come in either the Lucid or Motif flavors.
  The former utilizes Emacs's own Xt-based Lucid widget library for
  menus, and Xaw (or derivatives such as neXTaw and Xaw3d) for dialog
  boxes and, optionally, scroll bars.  It does not support file
  panels.  The latter uses either Motif or LessTif for menu bars,
  popup menus, dialogs and file panels.

  The GTK configurations come in the GTK+ 2 or GTK 3 configurations,
  where the toolkit provides all the aforementioned decorations and
  features.  They work mostly the same, though GTK 3 has various small
  annoyances that complicate maintenance.

  All of those configurations have various special technicalities
  about event handling and the layout of windows inside a frame that
  must be kept in mind when writing X code which is run on all of
  them.

  The no toolkit configuration has no noteworthy aspects about the
  layout of windows inside a frame, since each frame has only one
  associated window aside from scroll bars.  However, in the Xt
  configurations, every widget is a separate window, and there are
  quite a few widgets.  The "outer widget", a widget of class
  ApplicationShell, is the top-level window of a frame.  Its window is
  accessed via the macro `FRAME_OUTER_WINDOW'.  The "edit widget", a
  widget class of EmacsFrame, is a child of the outer widget that
  controls the size of a frame as known to Emacs, and is the widget
  that Emacs draws to during display operations.  The "menu bar
  widget" is the widget holding the menu bar.

  Special care must be taken when performing operations on a frame.
  Properties that are used by the window manager, for example, must be
  set on the outer widget.  Drawing, on the other hand, must be done
  to the edit widget, and button press events on the menu bar widget
  must be redirected and not sent to Xt until the Lisp code is run to
  update the menu bar.

  The EmacsFrame widget is specific to Emacs and is implemented in
  widget.c.  See that file for more details.

  In the GTK configurations, GTK widgets do not necessarily correspond
  to X windows, since the toolkit might decide to keep only a
  client-side record of the widgets for performance reasons.

  Because the GtkFixed widget that holds the "edit area" might not
  correspond to an X window, drawing operations may be directly
  performed on the outer window, with special care taken to not
  overwrite the surrounding GTK widgets.  This also means that the
  only important window for most purposes is the outer window, which
  on GTK builds can usually be accessed using the macro
  `FRAME_X_WINDOW'.

  How `handle_one_xevent' is called also depends on the configuration.
  Without a toolkit, Emacs performs all event processing by itself,
  running XPending and XNextEvent in a loop whenever there is input,
  passing the event to `handle_one_xevent'.

  When using Xt, the same is performed, but `handle_one_xevent' may
  also decide to call XtDispatchEvent on an event after Emacs finishes
  processing it.

  When using GTK, however, `handle_one_xevent' is called from an event
  filter installed on the GTK event loop.  Unless the event filter
  elects to drop the event, it will be passed to GTK right after
  leaving the event filter.

  Fortunately, `handle_one_xevent' is provided a `*finish' parameter
  that abstracts away all these details.  If it is `X_EVENT_DROP',
  then the event will not be dispatched to Xt or utilized by GTK.
  Code inside `handle_one_xevent' should thus avoid making assumptions
  about the event dispatch mechanism and use that parameter
  instead.

  FRAME RESIZING

  In the following explanations "frame size" refers to the "native
  size" of a frame as reported by the (frame.h) macros
  FRAME_PIXEL_WIDTH and FRAME_PIXEL_HEIGHT.  These specify the size of
  a frame as the values passed to/received from a toolkit and the
  window manager.  The "text size" Emacs Lisp code uses in functions
  like 'set-frame-size' or sees in the ‘width’ and 'height' frame
  parameters is only loosely related to the native size.  The
  necessary translations are provided by the macros
  FRAME_TEXT_TO_PIXEL_WIDTH and FRAME_TEXT_TO_PIXEL_HEIGHT as well as
  FRAME_PIXEL_TO_TEXT_WIDTH and FRAME_PIXEL_TO_TEXT_HEIGHT (in
  frame.h).

  Lisp functions may ask for resizing a frame either explicitly, using
  one of the interfaces provided for that purpose like, for example,
  'set-frame-size' or changing the 'height' or 'width' parameter of
  that frame, or implicitly, for example, by turning off/on or
  changing the width of fringes or scroll bars for that frame.  Any
  such request passes through the routine 'adjust_frame_size' (in
  frame.c) which decides, among others, whether the native frame size
  would really change and whether it is allowed to change it at that
  moment.  Only if 'adjust_frame_size' decides that the corresponding
  terminal's 'set_window_size_hook' may be run, it will dispatch
  execution to the appropriate function which, for X builds, is
  'x_set_window_size' in this file.

  For GTK builds, 'x_set_window_size' calls 'xg_frame_set_char_size'
  in gtkutil.c if the frame has an edit widget and
  'x_set_window_size_1' in this file otherwise.  For non-GTK builds,
  'x_set_window_size' always calls 'x_set_window_size_1' directly.

  'xg_frame_set_char_size' calls the GTK function 'gtk_window_resize'
  for the frame's outer widget; x_set_window_size_1 calls the Xlib
  function 'XResizeWindow' instead.  In either case, if Emacs thinks
  that the frame is visible, it will wait for a ConfigureNotify event
  (see below) to occur within a timeout of 'x-wait-for-event-timeout'
  (the default is 0.1 seconds).  If Emacs thinks that the frame is not
  visible, it calls 'adjust_frame_size' to run 'resize_frame_windows'
  (see below) and hopes for the best.

  Note that if Emacs receives a ConfigureEvent in response to an
  earlier resize request, the sizes specified by that event are not
  necessarily the sizes Emacs requested.  Window manager and toolkit
  may override any of the requested sizes for their own reasons.

  On X, size notifications are received as ConfigureNotify events.
  The expected reaction to such an event on the Emacs side is to
  resize all Emacs windows that are on the frame referred to by the
  event.  Since resizing Emacs windows and redisplaying their buffers
  is a costly operation, Emacs may collapse several subsequent
  ConfigureNotify events into one to avoid that Emacs falls behind in
  user interactions like resizing a frame by dragging one of its
  borders with the mouse.

  Each ConfigureEvent event specifies a window, a width and a height.
  The event loop uses 'x_top_window_to_frame' to associate the window
  with its frame.  Once the frame has been identified, on GTK the
  event is dispatched to 'xg_frame_resized'.  On Motif/Lucid
  'x_window' has installed 'EmacsFrameResize' as the routine that
  handles resize events.  In either case, these routines end up
  calling the function 'change_frame_size' in dispnew.c.  On
  non-toolkit builds the effect is to call 'change_frame_size'
  directly from the event loop.  In either case, the value true is
  passed as the DELAY argument.

  'change_frame_size' is the central function to decide whether it is
  safe to process a resize request immediately or it has to be delayed
  (usually because its DELAY argument is true).  Since resizing a
  frame's windows may run arbitrary Lisp code, Emacs cannot generally
  process resize requests during redisplay and therefore has to queue
  them.  If processing the event must be delayed, the new sizes (that
  is, the ones requested by the ConfigureEvent) are stored in the
  new_width and new_height slots of the respective frame structure,
  possibly replacing ones that have been stored there upon the receipt
  of a preceding ConfigureEvent.

  Delayed size changes are applied eventually upon calls of the
  function 'do_pending_window_change' (in dispnew.c) which is called
  by the redisplay code at suitable spots where it's safe to change
  sizes.  'do_pending_window_change' calls 'change_frame_size' with
  its DELAY argument false in the hope that it is now safe to call the
  function 'resize_frame_windows' (in window.c) which is in charge of
  adjusting the sizes of all Emacs windows on the frame accordingly.
  Note that if 'resize_frame_windows' decides that the windows of a
  frame do not fit into the constraints set up by the new frame sizes,
  it will resize the windows to some minimum sizes with the effect
  that parts of the frame at the right and bottom will appear clipped
  off.

  In addition to explicitly passing width and height values in
  functions like 'gtk_window_resize' or 'XResizeWindow', Emacs also
  sets window manager size hints - a more implicit form of asking for
  the size Emacs would like its frames to assume.  Some of these hints
  only restate the size and the position explicitly requested for a
  frame.  Another hint specifies the increments in which the window
  manager should resize a frame to - either set to the default
  character size of a frame or to one pixel for a non-nil value of
  'frame-resize-pixelwise'.  See the function 'x_wm_set_size_hint' -
  in gtkutil.c for GTK and in this file for other builds - for the
  details.

  We have not discussed here a number of special issues like, for
  example, how to handle size requests and notifications for maximized
  and fullscreen frames or how to resize child frames.  Some of these
  require special treatment depending on the desktop or window manager
  used.

  One thing that might come handy when investigating problems wrt
  resizing frames is the variable 'frame-size-history'.  Setting this
  to a non-nil value, will cause Emacs to start recording frame size
  adjustments, usually specified by the function that asked for an
  adjustment, a sizes part that records the old and new values of the
  frame's width and height and maybe some additional information.  The
  internal function `frame--size-history' can then be used to display
  the value of this variable in a more readable form.

  FRAME RESIZE SYNCHRONIZATION

  The X window system operates asynchronously.  That is to say, the
  window manager and X server might think a window has been resized
  before Emacs has a chance to process the ConfigureNotify event that
  was sent.

  When a compositing manager is present, and the X server and Emacs
  both support the X synchronization extension, the semi-standard
  frame synchronization protocol can be used to notify the compositing
  manager of when Emacs has actually finished redisplaying the
  contents of a frame after a resize.  The compositing manager will
  customarily then postpone displaying the contents of the frame until
  the redisplay is complete.

  Emacs announces support for this protocol by creating an X
  server-side counter object, and setting it as the
  `_NET_WM_SYNC_REQUEST_COUNTER' property of the frame's top-level
  window.  The window manager then initiates the synchronized resize
  process by sending Emacs a ClientMessage event before the
  ConfigureNotify event where:

    type = ClientMessage
    window = the respective client window
    message_type = WM_PROTOCOLS
    format = 32
    data.l[0] = _NET_WM_SYNC_REQUEST
    data.l[1] = timestamp
    data.l[2] = low 32 bits of a provided frame counter value
    data.l[3] = high 32 bits of a provided frame counter value
    data.l[4] = 1 if the extended frame counter should be updated,
    otherwise 0

  Upon receiving such an event, Emacs constructs and saves a counter
  value from the provided low and high 32 bits.  Then, when the
  display engine tells us that a frame has been completely updated
  (presumably because of a redisplay caused by a ConfigureNotify
  event), we set the counter to the saved value, telling the
  compositing manager that the contents of the window now accurately
  reflect the new size.  The compositing manager will then display the
  contents of the window, and the window manager might also postpone
  updating the window decorations until this moment.

  DRAG AND DROP

  Drag and drop in Emacs is implemented in two ways, depending on
  which side initiated the drag-and-drop operation.  When another X
  client initiates a drag, and the user drops something on Emacs, a
  `drag-n-drop-event' is sent with the contents of the ClientMessage,
  and further processing (i.e. retrieving selection contents and
  replying to the initiating client) is performed from Lisp inside
  `x-dnd.el'.

  However, dragging contents from Emacs is implemented almost entirely
  in C.  X Windows has several competing drag-and-drop protocols, of
  which Emacs supports two on the C level: the XDND protocol (see
  https://freedesktop.org/wiki/Specifications/XDND) and the Motif drag
  and drop protocols.  These protocols are based on the initiator
  owning a special selection, specifying an action the recipient
  should perform, grabbing the mouse, and sending various different
  client messages to the toplevel window underneath the mouse as it
  moves, or when buttons are released.

  The Lisp interface to drag-and-drop is synchronous, and involves
  running a nested event loop with some global state until the drag
  finishes.  When the mouse moves, Emacs looks up the toplevel window
  underneath the pointer (the target window) either using a cache
  provided by window managers that support the
  _NET_WM_CLIENT_LIST_STACKING root window property, or by calling
  XTranslateCoordinates in a loop until a toplevel window is found,
  and sends various entry, exit, or motion events to the window
  containing a list of targets the special selection can be converted
  to, and the chosen action that the recipient should perform.  The
  recipient can then send messages in reply detailing the action it
  has actually chosen to perform.  Finally, when the mouse buttons are
  released over the recipient window, Emacs sends a "drop" message to
  the target window, waits for a reply, and returns the action
  selected by the recipient to the Lisp code that initiated the
  drag-and-drop operation.

  When a drop happens on a window not supporting any protocol
  implemented on the C level, the function inside
  `x-dnd-unsupported-drop-function' is called with some parameters of
  the drop.  If it returns non-nil, then Emacs tries to simulate a
  drop happening with the primary selection and synthetic button
  events (see `x_dnd_do_unsupported_drop').  That function implements
  the OffiX drag-and-drop protocol by default.  See
  `x-dnd-handle-unsupported-drop' in `x-dnd.el' for more details.

  DISPLAY ERROR HANDLING

  While error handling under X was originally designed solely as a
  mechanism for the X server to report fatal errors to clients, most
  clients (including Emacs) have adopted a system of "error traps" to
  handle or discard these errors as they arrive.  Discarding errors is
  usually necessary when Emacs performs an X request that might fail:
  for example, sending a message to a window that may no longer exist,
  or might not exist at all.  Handling errors is then necessary when
  the detailed error must be reported to another piece of code: for
  example, as a Lisp error.

  It is not acceptable for Emacs to crash when it is sent invalid data
  by another client, or by Lisp.  As a result, errors must be caught
  around Xlib functions generating requests containing resource
  identifiers that could potentially be invalid, such as window or
  atom identifiers provided in a client message from another program,
  or a child window ID obtained through XTranslateCoordinates that may
  refer to a window that has been deleted in the meantime.

  There are two sets of functions used to perform this "error
  trapping".  Which one should be used depends on what kind of
  processing must be done on the error.  The first consists of the
  functions `x_ignore_errors_for_next_request' and
  `x_stop_ignoring_errors', which ignore errors generated by requests
  made in between a call to the first function and a corresponding
  call to the second.  They should be used for simple asynchronous
  requests that do not require a reply from the X server: using them
  instead of the second set improves performance, as they simply
  record a range of request serials to ignore errors from, instead of
  synchronizing with the X server to handle errors.

  The second set consists of the following functions:

    - x_catch_errors_with_handler
    - x_catch_errors
    - x_uncatch_errors_after_check
    - x_uncatch_errors
    - x_check_errors
    - x_had_errors_p
    - x_clear_errors

  Callers using this set should consult the comment(s) on top of the
  aforementioned functions.  They should not be used when the requests
  being made do not require roundtrips to the X server, and obtaining
  the details of any error generated is unnecessary, as
  `x_uncatch_errors' will always synchronize with the X server, which
  is a potentially slow operation.  */

#include <config.h>
#include <stdlib.h>
#include <math.h>
#include <signal.h>

#include "lisp.h"
#include "blockinput.h"
#include "sysstdio.h"

/* This may include sys/types.h, and that somehow loses
   if this is not done before the other system files.  */
#include "xterm.h"
#include <X11/cursorfont.h>

#ifdef HAVE_X_I18N
#include "textconv.h"
#endif

#ifdef USE_XCB
#include <xcb/xproto.h>
#include <xcb/xcb.h>
#endif

/* If we have Xfixes extension, use it for pointer blanking.  */
#ifdef HAVE_XFIXES
#include <X11/extensions/Xfixes.h>
#endif

#ifdef HAVE_XDBE
#include <X11/extensions/Xdbe.h>
#endif

#ifdef HAVE_XINPUT2
#include <X11/extensions/XInput2.h>
#endif

#ifdef HAVE_XRANDR
#include <X11/extensions/Xrandr.h>
#endif

#ifdef HAVE_XSYNC
#include <X11/extensions/sync.h>
#endif

#ifdef HAVE_XINERAMA
#include <X11/extensions/Xinerama.h>
#endif

#ifdef HAVE_XCOMPOSITE
#include <X11/extensions/Xcomposite.h>
#endif

#ifdef HAVE_XSHAPE
#include <X11/extensions/shape.h>
#endif

#ifdef HAVE_XCB_SHAPE
#include <xcb/shape.h>
#endif

/* Load sys/types.h if not already loaded.
   In some systems loading it twice is suicidal.  */
#ifndef makedev
#include <sys/types.h>
#endif /* makedev */

#include <sys/ioctl.h>

#include "systime.h"

#include <fcntl.h>
#include <errno.h>
#include <sys/stat.h>
#include <flexmember.h>
#include <c-ctype.h>
#include <byteswap.h>

#include "character.h"
#include "coding.h"
#include "composite.h"
#include "frame.h"
#include "dispextern.h"
#include "xwidget.h"
#include "fontset.h"
#include "termhooks.h"
#include "termopts.h"
#include "termchar.h"
#include "emacs-icon.h"
#include "buffer.h"
#include "window.h"
#include "keyboard.h"
#include "atimer.h"
#include "font.h"
#include "xsettings.h"
#include "sysselect.h"
#include "menu.h"
#include "pdumper.h"

#ifdef USE_X_TOOLKIT
#include <X11/Shell.h>
#include <X11/ShellP.h>
#endif

#include <unistd.h>

#ifdef USE_GTK
#include "gtkutil.h"
#ifdef HAVE_GTK3
#include <X11/Xproto.h>
#endif
#endif

#if defined (USE_LUCID) || defined (USE_MOTIF)
#include "../lwlib/xlwmenu.h"
#endif

#ifdef HAVE_XWIDGETS
#include <cairo-xlib.h>
#endif

#ifdef USE_MOTIF
#include <Xm/Xm.h>
#include <Xm/CascadeB.h>
#endif

#ifdef USE_X_TOOLKIT

/* Include toolkit specific headers for the scroll bar widget.  */
#ifdef USE_TOOLKIT_SCROLL_BARS
#if defined USE_MOTIF
#include <Xm/ScrollBar.h>
#else /* !USE_MOTIF i.e. use Xaw */

#ifdef HAVE_XAW3D
#include <X11/Xaw3d/Simple.h>
#include <X11/Xaw3d/Scrollbar.h>
#include <X11/Xaw3d/ThreeD.h>
#else /* !HAVE_XAW3D */
#include <X11/Xaw/Simple.h>
#include <X11/Xaw/Scrollbar.h>
#endif /* !HAVE_XAW3D */
#ifndef XtNpickTop
#define XtNpickTop "pickTop"
#endif /* !XtNpickTop */
#endif /* !USE_MOTIF */
#endif /* USE_TOOLKIT_SCROLL_BARS */

#endif /* USE_X_TOOLKIT */

#ifdef USE_X_TOOLKIT
#include "widget.h"
#ifndef XtNinitialState
#define XtNinitialState "initialState"
#endif
#endif

#ifdef USE_GTK
#include <xgselect.h>
#endif

#include "bitmaps/gray.xbm"

#ifdef HAVE_XKB
#include <X11/XKBlib.h>
#endif

/* Although X11/Xlib.h commonly defines the types XErrorHandler and
   XIOErrorHandler, they are not in the Xlib spec, so for portability
   define and use names with an Emacs_ prefix instead.  */
typedef int (*Emacs_XErrorHandler) (Display *, XErrorEvent *);
typedef int (*Emacs_XIOErrorHandler) (Display *);

#if defined USE_XCB && defined USE_CAIRO_XCB
#define USE_CAIRO_XCB_SURFACE
#endif

#if XCB_SHAPE_MAJOR_VERSION > 1	      \
  || (XCB_SHAPE_MAJOR_VERSION == 1 && \
      XCB_SHAPE_MINOR_VERSION >= 1)
#define HAVE_XCB_SHAPE_INPUT_RECTS
#endif

#ifdef USE_GTK
/* GTK can't tolerate a call to `handle_interrupt' inside an event
   signal handler, but we have to store input events inside the
   handler for native input to work.

   This acts as a `hold_quit', and it is stored in the keyboard buffer
   (thereby causing the call to `handle_interrupt') after the GTK
   signal handler exits and control returns to XTread_socket.  */
struct input_event xg_pending_quit_event = { .kind = NO_EVENT };
#endif

/* Non-zero means that a HELP_EVENT has been generated since Emacs
   start.  */

static bool any_help_event_p;

/* This is a chain of structures for all the X displays currently in
   use.  */

struct x_display_info *x_display_list;

#ifdef USE_X_TOOLKIT

/* The application context for Xt use.  */
XtAppContext Xt_app_con;
static String Xt_default_resources[] = {0};

/* Non-zero means user is interacting with a toolkit scroll bar.  */
static bool toolkit_scroll_bar_interaction;

#endif /* USE_X_TOOLKIT */

/* Non-zero timeout value means ignore next mouse click if it arrives
   before that timeout elapses (i.e. as part of the same sequence of
   events resulting from clicking on a frame to select it).  */

static Time ignore_next_mouse_click_timeout;

/* The display that ignore_next_mouse_click_timeout applies to.  */

static struct x_display_info *mouse_click_timeout_display;

/* Used locally within XTread_socket.  */

static int x_noop_count;

#ifdef USE_GTK
/* The name of the Emacs icon file.  */
static Lisp_Object xg_default_icon_file;
#endif

#ifdef HAVE_X_I18N
/* Some functions take this as char *, not const char *.  */
static char emacs_class[] = EMACS_CLASS;
#endif

#ifdef USE_GTK
static int current_count;
static int current_finish;
static struct input_event *current_hold_quit;
#endif

#ifdef HAVE_XINPUT2
#ifndef X_XIGrabDevice
#define X_XIGrabDevice 51
#endif

#ifndef X_XIUngrabDevice
#define X_XIUngrabDevice 52
#endif

#ifndef X_XIAllowEvents
#define X_XIAllowEvents 53
#endif
#endif

/* Queue selection requests in `pending_selection_requests' if more
   than 0.  */
static int x_use_pending_selection_requests;

/* Like `next_kbd_event', but for use in X code.  */
#define X_NEXT_KBD_EVENT(ptr) \
  ((ptr) == kbd_buffer + KBD_BUFFER_SIZE - 1 ? kbd_buffer : (ptr) + 1)

static void x_push_selection_request (struct selection_input_event *);

/* Defer selection requests.  Between this and
   x_release_selection_requests, any selection requests can be
   processed by calling `x_handle_pending_selection_requests'.

   Also run through and queue all the selection events already in the
   keyboard buffer.  */
void
x_defer_selection_requests (void)
{
  union buffered_input_event *event;
  bool between;

  between = false;

  block_input ();
  if (!x_use_pending_selection_requests)
    {
      event = kbd_fetch_ptr;

      while (event != kbd_store_ptr)
	{
	  if (event->ie.kind == SELECTION_REQUEST_EVENT
	      || event->ie.kind == SELECTION_CLEAR_EVENT)
	    {
	      x_push_selection_request (&event->sie);

	      /* Mark this selection event as invalid.   */
	      SELECTION_EVENT_DPYINFO (&event->sie) = NULL;

	      /* Move the kbd_fetch_ptr along if doing so would not
		 result in any other events being skipped.  This
		 avoids exhausting the keyboard buffer with some
		 over-enthusiastic clipboard managers.  */
	      if (!between)
		{
		  kbd_fetch_ptr = X_NEXT_KBD_EVENT (event);

		  /* `detect_input_pending' will then recompute
		     whether or not pending input events exist.  */
		  input_pending = false;
		}
	    }
	  else
	    between = true;

	  event = X_NEXT_KBD_EVENT (event);
	}
    }

  x_use_pending_selection_requests++;
  unblock_input ();
}

static void
x_release_selection_requests (void)
{
  x_use_pending_selection_requests--;
}

void
x_release_selection_requests_and_flush (void)
{
  x_release_selection_requests ();

  if (!x_use_pending_selection_requests)
    x_handle_pending_selection_requests ();
}

struct x_selection_request_event
{
  /* The selection request event.  */
  struct selection_input_event se;

  /* The next unprocessed selection request event.  */
  struct x_selection_request_event *next;
};

/* Chain of unprocessed selection request events.  Used to handle
   selection requests inside long-lasting modal event loops, such as
   the drag-and-drop loop.  */

struct x_selection_request_event *pending_selection_requests;

struct x_atom_ref
{
  /* Atom name.  */
  const char *name;

  /* Offset of atom in the display info structure.  */
  int offset;
};

/* List of all atoms that should be interned when connecting to a
   display.  */
static const struct x_atom_ref x_atom_refs[] =
  {
#define ATOM_REFS_INIT(string, member)				\
    { string, offsetof (struct x_display_info, member) },
    ATOM_REFS_INIT ("WM_PROTOCOLS", Xatom_wm_protocols)
    ATOM_REFS_INIT ("WM_TAKE_FOCUS", Xatom_wm_take_focus)
    ATOM_REFS_INIT ("WM_SAVE_YOURSELF", Xatom_wm_save_yourself)
    ATOM_REFS_INIT ("WM_DELETE_WINDOW", Xatom_wm_delete_window)
    ATOM_REFS_INIT ("WM_CHANGE_STATE", Xatom_wm_change_state)
    ATOM_REFS_INIT ("WM_STATE", Xatom_wm_state)
    ATOM_REFS_INIT ("WM_CONFIGURE_DENIED", Xatom_wm_configure_denied)
    ATOM_REFS_INIT ("WM_MOVED", Xatom_wm_window_moved)
    ATOM_REFS_INIT ("WM_CLIENT_LEADER", Xatom_wm_client_leader)
    ATOM_REFS_INIT ("WM_TRANSIENT_FOR", Xatom_wm_transient_for)
    ATOM_REFS_INIT ("Editres", Xatom_editres)
    ATOM_REFS_INIT ("CLIPBOARD", Xatom_CLIPBOARD)
    ATOM_REFS_INIT ("TIMESTAMP", Xatom_TIMESTAMP)
    ATOM_REFS_INIT ("TEXT", Xatom_TEXT)
    ATOM_REFS_INIT ("COMPOUND_TEXT", Xatom_COMPOUND_TEXT)
    ATOM_REFS_INIT ("UTF8_STRING", Xatom_UTF8_STRING)
    ATOM_REFS_INIT ("DELETE", Xatom_DELETE)
    ATOM_REFS_INIT ("MULTIPLE", Xatom_MULTIPLE)
    ATOM_REFS_INIT ("INCR", Xatom_INCR)
    ATOM_REFS_INIT ("_EMACS_TMP_",  Xatom_EMACS_TMP)
    ATOM_REFS_INIT ("_EMACS_SERVER_TIME_PROP", Xatom_EMACS_SERVER_TIME_PROP)
    ATOM_REFS_INIT ("TARGETS", Xatom_TARGETS)
    ATOM_REFS_INIT ("NULL", Xatom_NULL)
    ATOM_REFS_INIT ("ATOM", Xatom_ATOM)
    ATOM_REFS_INIT ("ATOM_PAIR", Xatom_ATOM_PAIR)
    ATOM_REFS_INIT ("CLIPBOARD_MANAGER", Xatom_CLIPBOARD_MANAGER)
    ATOM_REFS_INIT ("_XEMBED_INFO", Xatom_XEMBED_INFO)
    ATOM_REFS_INIT ("_MOTIF_WM_HINTS", Xatom_MOTIF_WM_HINTS)
    ATOM_REFS_INIT ("_EMACS_DRAG_ATOM", Xatom_EMACS_DRAG_ATOM)
    /* For properties of font.  */
    ATOM_REFS_INIT ("PIXEL_SIZE", Xatom_PIXEL_SIZE)
    ATOM_REFS_INIT ("AVERAGE_WIDTH", Xatom_AVERAGE_WIDTH)
    ATOM_REFS_INIT ("_MULE_BASELINE_OFFSET", Xatom_MULE_BASELINE_OFFSET)
    ATOM_REFS_INIT ("_MULE_RELATIVE_COMPOSE", Xatom_MULE_RELATIVE_COMPOSE)
    ATOM_REFS_INIT ("_MULE_DEFAULT_ASCENT", Xatom_MULE_DEFAULT_ASCENT)
    /* Ghostscript support.  */
    ATOM_REFS_INIT ("DONE", Xatom_DONE)
    ATOM_REFS_INIT ("PAGE", Xatom_PAGE)
    ATOM_REFS_INIT ("_EMACS_SCROLLBAR", Xatom_Scrollbar)
    ATOM_REFS_INIT ("_EMACS_HORIZONTAL_SCROLLBAR", Xatom_Horizontal_Scrollbar)
    ATOM_REFS_INIT ("_XEMBED", Xatom_XEMBED)
    /* EWMH */
    ATOM_REFS_INIT ("_NET_WM_STATE", Xatom_net_wm_state)
    ATOM_REFS_INIT ("_NET_WM_STATE_FULLSCREEN", Xatom_net_wm_state_fullscreen)
    ATOM_REFS_INIT ("_NET_WM_STATE_MAXIMIZED_HORZ",
		    Xatom_net_wm_state_maximized_horz)
    ATOM_REFS_INIT ("_NET_WM_STATE_MAXIMIZED_VERT",
		    Xatom_net_wm_state_maximized_vert)
    ATOM_REFS_INIT ("_NET_WM_STATE_STICKY", Xatom_net_wm_state_sticky)
    ATOM_REFS_INIT ("_NET_WM_STATE_SHADED", Xatom_net_wm_state_shaded)
    ATOM_REFS_INIT ("_NET_WM_STATE_HIDDEN", Xatom_net_wm_state_hidden)
    ATOM_REFS_INIT ("_NET_WM_WINDOW_TYPE", Xatom_net_window_type)
    ATOM_REFS_INIT ("_NET_WM_WINDOW_TYPE_TOOLTIP",
		    Xatom_net_window_type_tooltip)
    ATOM_REFS_INIT ("_NET_WM_ICON_NAME", Xatom_net_wm_icon_name)
    ATOM_REFS_INIT ("_NET_WM_NAME", Xatom_net_wm_name)
    ATOM_REFS_INIT ("_NET_SUPPORTED",  Xatom_net_supported)
    ATOM_REFS_INIT ("_NET_SUPPORTING_WM_CHECK", Xatom_net_supporting_wm_check)
    ATOM_REFS_INIT ("_NET_WM_WINDOW_OPACITY", Xatom_net_wm_window_opacity)
    ATOM_REFS_INIT ("_NET_ACTIVE_WINDOW", Xatom_net_active_window)
    ATOM_REFS_INIT ("_NET_FRAME_EXTENTS", Xatom_net_frame_extents)
    ATOM_REFS_INIT ("_NET_CURRENT_DESKTOP", Xatom_net_current_desktop)
    ATOM_REFS_INIT ("_NET_WORKAREA", Xatom_net_workarea)
    ATOM_REFS_INIT ("_NET_WM_SYNC_REQUEST", Xatom_net_wm_sync_request)
    ATOM_REFS_INIT ("_NET_WM_SYNC_REQUEST_COUNTER", Xatom_net_wm_sync_request_counter)
    ATOM_REFS_INIT ("_NET_WM_SYNC_FENCES", Xatom_net_wm_sync_fences)
    ATOM_REFS_INIT ("_NET_WM_BYPASS_COMPOSITOR", Xatom_net_wm_bypass_compositor)
    ATOM_REFS_INIT ("_NET_WM_FRAME_DRAWN", Xatom_net_wm_frame_drawn)
    ATOM_REFS_INIT ("_NET_WM_FRAME_TIMINGS", Xatom_net_wm_frame_timings)
    ATOM_REFS_INIT ("_NET_WM_USER_TIME", Xatom_net_wm_user_time)
    ATOM_REFS_INIT ("_NET_WM_USER_TIME_WINDOW", Xatom_net_wm_user_time_window)
    ATOM_REFS_INIT ("_NET_CLIENT_LIST_STACKING", Xatom_net_client_list_stacking)
    /* Session management */
    ATOM_REFS_INIT ("SM_CLIENT_ID", Xatom_SM_CLIENT_ID)
    ATOM_REFS_INIT ("_XSETTINGS_SETTINGS", Xatom_xsettings_prop)
    ATOM_REFS_INIT ("MANAGER", Xatom_xsettings_mgr)
    ATOM_REFS_INIT ("_NET_WM_STATE_SKIP_TASKBAR", Xatom_net_wm_state_skip_taskbar)
    ATOM_REFS_INIT ("_NET_WM_STATE_ABOVE", Xatom_net_wm_state_above)
    ATOM_REFS_INIT ("_NET_WM_STATE_BELOW", Xatom_net_wm_state_below)
    ATOM_REFS_INIT ("_NET_WM_OPAQUE_REGION", Xatom_net_wm_opaque_region)
    ATOM_REFS_INIT ("_NET_WM_PING", Xatom_net_wm_ping)
    ATOM_REFS_INIT ("_NET_WM_PID", Xatom_net_wm_pid)
#ifdef HAVE_XKB
    ATOM_REFS_INIT ("Meta", Xatom_Meta)
    ATOM_REFS_INIT ("Super", Xatom_Super)
    ATOM_REFS_INIT ("Hyper", Xatom_Hyper)
    ATOM_REFS_INIT ("ShiftLock", Xatom_ShiftLock)
    ATOM_REFS_INIT ("Alt", Xatom_Alt)
#endif
    /* DND source.  */
    ATOM_REFS_INIT ("XdndAware", Xatom_XdndAware)
    ATOM_REFS_INIT ("XdndSelection", Xatom_XdndSelection)
    ATOM_REFS_INIT ("XdndTypeList", Xatom_XdndTypeList)
    ATOM_REFS_INIT ("XdndActionCopy", Xatom_XdndActionCopy)
    ATOM_REFS_INIT ("XdndActionMove", Xatom_XdndActionMove)
    ATOM_REFS_INIT ("XdndActionLink", Xatom_XdndActionLink)
    ATOM_REFS_INIT ("XdndActionAsk", Xatom_XdndActionAsk)
    ATOM_REFS_INIT ("XdndActionPrivate", Xatom_XdndActionPrivate)
    ATOM_REFS_INIT ("XdndActionList", Xatom_XdndActionList)
    ATOM_REFS_INIT ("XdndActionDescription", Xatom_XdndActionDescription)
    ATOM_REFS_INIT ("XdndProxy", Xatom_XdndProxy)
    ATOM_REFS_INIT ("XdndEnter", Xatom_XdndEnter)
    ATOM_REFS_INIT ("XdndPosition", Xatom_XdndPosition)
    ATOM_REFS_INIT ("XdndStatus", Xatom_XdndStatus)
    ATOM_REFS_INIT ("XdndLeave", Xatom_XdndLeave)
    ATOM_REFS_INIT ("XdndDrop", Xatom_XdndDrop)
    ATOM_REFS_INIT ("XdndFinished", Xatom_XdndFinished)
    /* XDS source and target.  */
    ATOM_REFS_INIT ("XdndDirectSave0", Xatom_XdndDirectSave0)
    ATOM_REFS_INIT ("XdndActionDirectSave", Xatom_XdndActionDirectSave)
    ATOM_REFS_INIT ("text/plain", Xatom_text_plain)
    /* Motif drop protocol support.  */
    ATOM_REFS_INIT ("_MOTIF_DRAG_WINDOW", Xatom_MOTIF_DRAG_WINDOW)
    ATOM_REFS_INIT ("_MOTIF_DRAG_TARGETS", Xatom_MOTIF_DRAG_TARGETS)
    ATOM_REFS_INIT ("_MOTIF_DRAG_AND_DROP_MESSAGE",
		    Xatom_MOTIF_DRAG_AND_DROP_MESSAGE)
    ATOM_REFS_INIT ("_MOTIF_DRAG_INITIATOR_INFO",
		    Xatom_MOTIF_DRAG_INITIATOR_INFO)
    ATOM_REFS_INIT ("_MOTIF_DRAG_RECEIVER_INFO",
		    Xatom_MOTIF_DRAG_RECEIVER_INFO)
    ATOM_REFS_INIT ("XmTRANSFER_SUCCESS", Xatom_XmTRANSFER_SUCCESS)
    ATOM_REFS_INIT ("XmTRANSFER_FAILURE", Xatom_XmTRANSFER_FAILURE)
    /* Old OffiX (a.k.a. old KDE) drop protocol support.  */
    ATOM_REFS_INIT ("DndProtocol", Xatom_DndProtocol)
    ATOM_REFS_INIT ("_DND_PROTOCOL", Xatom_DND_PROTOCOL)
    /* Here are some atoms that are not actually used from C, just
       defined to make replying to selection requests fast.  */
    ATOM_REFS_INIT ("text/plain;charset=utf-8", Xatom_text_plain_charset_utf_8)
    ATOM_REFS_INIT ("LENGTH", Xatom_LENGTH)
    ATOM_REFS_INIT ("FILE_NAME", Xatom_FILE_NAME)
    ATOM_REFS_INIT ("CHARACTER_POSITION", Xatom_CHARACTER_POSITION)
    ATOM_REFS_INIT ("LINE_NUMBER", Xatom_LINE_NUMBER)
    ATOM_REFS_INIT ("COLUMN_NUMBER", Xatom_COLUMN_NUMBER)
    ATOM_REFS_INIT ("OWNER_OS", Xatom_OWNER_OS)
    ATOM_REFS_INIT ("HOST_NAME", Xatom_HOST_NAME)
    ATOM_REFS_INIT ("USER", Xatom_USER)
    ATOM_REFS_INIT ("CLASS", Xatom_CLASS)
    ATOM_REFS_INIT ("NAME", Xatom_NAME)
    ATOM_REFS_INIT ("SAVE_TARGETS", Xatom_SAVE_TARGETS)
  };

enum
{
  X_EVENT_NORMAL,
  X_EVENT_GOTO_OUT,
  X_EVENT_DROP
};

enum xembed_info
  {
    XEMBED_MAPPED = 1 << 0
  };

enum xembed_message
  {
    XEMBED_EMBEDDED_NOTIFY        = 0,
    XEMBED_WINDOW_ACTIVATE        = 1,
    XEMBED_WINDOW_DEACTIVATE      = 2,
    XEMBED_REQUEST_FOCUS          = 3,
    XEMBED_FOCUS_IN               = 4,
    XEMBED_FOCUS_OUT              = 5,
    XEMBED_FOCUS_NEXT             = 6,
    XEMBED_FOCUS_PREV             = 7,

    XEMBED_MODALITY_ON            = 10,
    XEMBED_MODALITY_OFF           = 11,
    XEMBED_REGISTER_ACCELERATOR   = 12,
    XEMBED_UNREGISTER_ACCELERATOR = 13,
    XEMBED_ACTIVATE_ACCELERATOR   = 14
  };

static bool x_alloc_nearest_color_1 (Display *, Colormap, XColor *);
static void x_raise_frame (struct frame *);
static void x_lower_frame (struct frame *);
static int x_io_error_quitter (Display *);
static struct terminal *x_create_terminal (struct x_display_info *);
static void x_frame_rehighlight (struct x_display_info *);

static void x_clip_to_row (struct window *, struct glyph_row *,
			   enum glyph_row_area, GC, XRectangle *);
static struct scroll_bar *x_window_to_scroll_bar (Display *, Window, int);
static struct frame *x_window_to_frame (struct x_display_info *, int);
static void x_scroll_bar_report_motion (struct frame **, Lisp_Object *,
                                        enum scroll_bar_part *,
                                        Lisp_Object *, Lisp_Object *,
                                        Time *);
static void x_horizontal_scroll_bar_report_motion (struct frame **, Lisp_Object *,
						   enum scroll_bar_part *,
						   Lisp_Object *, Lisp_Object *,
						   Time *);
static bool x_handle_net_wm_state (struct frame *, const XPropertyEvent *);
static void x_check_fullscreen (struct frame *);
static void x_check_expected_move (struct frame *, int, int);
static void x_sync_with_move (struct frame *, int, int, bool);
#ifndef HAVE_XINPUT2
static int handle_one_xevent (struct x_display_info *,
			      const XEvent *, int *,
			      struct input_event *);
#else
static int handle_one_xevent (struct x_display_info *,
			      XEvent *, int *,
			      struct input_event *);
#endif
#if ! (defined USE_X_TOOLKIT || defined USE_MOTIF) && defined USE_GTK
static int x_dispatch_event (XEvent *, Display *);
#endif
static void x_wm_set_window_state (struct frame *, int);
static void x_wm_set_icon_pixmap (struct frame *, ptrdiff_t);
static void x_initialize (void);

static bool x_get_current_wm_state (struct frame *, Window, int *, bool *, bool *);
static void x_update_opaque_region (struct frame *, XEvent *);

#ifdef HAVE_X_I18N
static int x_filter_event (struct x_display_info *, XEvent *);
#endif
static void x_clean_failable_requests (struct x_display_info *);

static struct frame *x_tooltip_window_to_frame (struct x_display_info *,
						Window, bool *);
static Window x_get_window_below (Display *, Window, int, int, int *, int *);
static void x_set_input_focus (struct x_display_info *, Window, Time);

#ifndef USE_TOOLKIT_SCROLL_BARS
static void x_scroll_bar_redraw (struct scroll_bar *);
#endif

\f

/* Global state maintained during a drag-and-drop operation.  */

/* Flag that indicates if a drag-and-drop operation is in progress.  */
bool x_dnd_in_progress;

/* The frame where the drag-and-drop operation originated.  */
struct frame *x_dnd_frame;

/* That frame, but set when x_dnd_waiting_for_finish is true.  Used to
   prevent the frame from being deleted inside selection handlers and
   other callbacks.  */
struct frame *x_dnd_finish_frame;

/* Flag that indicates if a drag-and-drop operation is no longer in
   progress, but the nested event loop should continue to run, because
   handle_one_xevent is waiting for the drop target to return some
   important information.  */
bool x_dnd_waiting_for_finish;

/* Flag that means (when set in addition to
   `x_dnd_waiting_for_finish') to run the unsupported drop function
   with the given arguments.  */
static bool x_dnd_run_unsupported_drop_function;

/* The "before"-time of the unsupported drop.  */
static Time x_dnd_unsupported_drop_time;

/* The target window of the unsupported drop.  */
static Window x_dnd_unsupported_drop_window;

/* The Lisp data associated with the unsupported drop function.  */
static Lisp_Object x_dnd_unsupported_drop_data;

/* Whether or not to move the tooltip along with the mouse pointer
   during drag-and-drop.  */
static bool x_dnd_update_tooltip;

/* Monitor attribute list used for updating the tooltip position.  */
static Lisp_Object x_dnd_monitors;

/* The display the drop target that is supposed to send information is
   on.  */
static Display *x_dnd_finish_display;

/* State of the Motif drop operation.

   0 means nothing has happened, i.e. the event loop should not wait
   for the receiver to send any data.  1 means an XmDROP_START message
   was sent to the target, but no response has yet been received.  2
   means a response to our XmDROP_START message was received and the
   target accepted the drop, so Emacs should start waiting for the
   drop target to convert one of the special selections
   XmTRANSFER_SUCCESS or XmTRANSFER_FAILURE.  */
static int x_dnd_waiting_for_motif_finish;

/* The display the Motif drag receiver will send response data
   from.  */
struct x_display_info *x_dnd_waiting_for_motif_finish_display;

/* Whether or not F1 was pressed during the drag-and-drop operation.

   Motif programs rely on this to decide whether or not help
   information about the drop site should be displayed.  */
static bool x_dnd_xm_use_help;

/* Whether or not Motif drag initiator info was set up.  */
static bool x_dnd_motif_setup_p;

/* The Motif drag atom used during the drag-and-drop operation.  */
static Atom x_dnd_motif_atom;

/* The target window we are waiting for an XdndFinished message
   from.  */
static Window x_dnd_pending_finish_target;

/* The protocol version of that target window.  */
static int x_dnd_waiting_for_finish_proto;

/* Whether or not it is OK for something to be dropped on the frame
   where the drag-and-drop operation originated.  */
static bool x_dnd_allow_current_frame;

/* Whether or not the `XdndTypeList' property has already been set on
   the drag frame.  */
static bool x_dnd_init_type_lists;

/* Whether or not to return a frame from `x_dnd_begin_drag_and_drop'.

   0 means to do nothing.  1 means to wait for the mouse to first exit
   `x_dnd_frame'.  2 means to wait for the mouse to move onto a frame,
   and 3 means to return `x_dnd_return_frame_object'.  */
static int x_dnd_return_frame;

/* The frame that should be returned by
   `x_dnd_begin_drag_and_drop'.  */
static struct frame *x_dnd_return_frame_object;

/* The last drop target window the mouse pointer moved over.  This can
   be different from `x_dnd_last_seen_toplevel' if that window had an
   XdndProxy.  */
static Window x_dnd_last_seen_window;

/* The last toplevel the mouse pointer moved over.  */
static Window x_dnd_last_seen_toplevel;

/* The window where the drop happened.  Normally None, but it is set
   when something is actually dropped.  */
static Window x_dnd_end_window;

/* The XDND protocol version of `x_dnd_last_seen_window'.  -1 means it
   did not support XDND.  */
static int x_dnd_last_protocol_version;

/* Whether or not the last seen window is actually one of our
   frames.  */
static bool x_dnd_last_window_is_frame;

/* The Motif drag and drop protocol style of `x_dnd_last_seen_window'.
   XM_DRAG_STYLE_NONE means the window does not support the Motif drag
   or drop protocol.  XM_DRAG_STYLE_DROP_ONLY means the window does
   not respond to any drag protocol messages, so only drops should be
   sent.  Any other value means that the window supports both the drag
   and drop protocols.  */
static int x_dnd_last_motif_style;

/* The timestamp where Emacs last acquired ownership of the
   `XdndSelection' selection.  */
static Time x_dnd_selection_timestamp;

/* The drop target window to which the rectangle below applies.  */
static Window x_dnd_mouse_rect_target;

/* A rectangle where XDND position messages should not be sent to the
   drop target if the mouse pointer lies within.  */
static XRectangle x_dnd_mouse_rect;

/* If not None, Emacs is waiting for an XdndStatus event from this
   window.  */
static Window x_dnd_waiting_for_status_window;

/* If .type != 0, an event that should be sent to .xclient.window
   upon receiving an XdndStatus event from said window.  */
static XEvent x_dnd_pending_send_position;

/* Whether or not that event corresponds to a button press.  */
static bool x_dnd_pending_send_position_button;

/* The root-window position of that event.  */
static int x_dnd_pending_send_position_root_x;

/* Likewise.  */
static int x_dnd_pending_send_position_root_y;

/* If true, send a drop from `x_dnd_finish_frame' to the pending
   status window after receiving all pending XdndStatus events.  */
static bool x_dnd_need_send_drop;

/* The protocol version of any such drop.  */
static int x_dnd_send_drop_proto;

/* The action the drop target actually chose to perform.

   Under XDND, this is set upon receiving the XdndFinished or
   XdndStatus messages from the drop target.

   Under Motif, this is changed upon receiving a XmDROP_START message
   in reply to our own.

   When dropping on a target that doesn't support any drag-and-drop
   protocol, this is set to the atom XdndActionPrivate.  */
static Atom x_dnd_action;

/* The symbol to return from `x-begin-drag' if non-nil.  Takes
   precedence over `x_dnd_action`.  */
static Lisp_Object x_dnd_action_symbol;

/* The action we want the drop target to perform.  The drop target may
   elect to perform some different action, which is guaranteed to be
   in `x_dnd_action' upon completion of a drop.  */
static Atom x_dnd_wanted_action;

/* The set of optional actions available to a Motif drop target
   computed at the start of the drag-and-drop operation.  */
static uint8_t x_dnd_motif_operations;

/* The preferred optional action out of that set.  Only takes effect
   if `x_dnd_action' is XdndAsk.  */
static uint8_t x_dnd_first_motif_operation;

/* Array of selection targets available to the drop target.  */
static Atom *x_dnd_targets;

/* The number of elements in that array.  */
static int x_dnd_n_targets;

/* The old window attributes of the root window before the
   drag-and-drop operation started.  It is used to keep the old event
   mask around, since that should be restored after the operation
   finishes.  */
static XWindowAttributes x_dnd_old_window_attrs;

/* Whether or not `x_dnd_cleaup_drag_and_drop' should actually clean
   up the drag and drop operation.  */
static bool x_dnd_unwind_flag;

/* The frame for which `x-dnd-movement-function' should be called.  */
static struct frame *x_dnd_movement_frame;

/* The coordinates which the movement function should be called
   with.  */
static int x_dnd_movement_x, x_dnd_movement_y;

/* The frame for which `x-dnd-wheel-function' should be called.  */
static struct frame *x_dnd_wheel_frame;

/* The coordinates which the wheel function should be called with.  */
static int x_dnd_wheel_x, x_dnd_wheel_y;

/* The button that was pressed.  */
static int x_dnd_wheel_button;

/* The modifier state when the button was pressed.  */
static int x_dnd_wheel_state;

/* When the button was pressed.  */
static Time x_dnd_wheel_time;

#ifdef HAVE_XKB
/* The keyboard state during the drag-and-drop operation.  */
static unsigned int x_dnd_keyboard_state;
#endif

/* jmp_buf that gets us out of the IO error handler if an error occurs
   terminating DND as part of the display disconnect handler.  */
static sigjmp_buf x_dnd_disconnect_handler;

/* Whether or not the current invocation of handle_one_xevent
   happened inside the drag_and_drop event loop.  */
static bool x_dnd_inside_handle_one_xevent;

/* The recursive edit depth when the drag-and-drop operation was
   started.  */
static int x_dnd_recursion_depth;

/* The cons cell containing the selection alias between the Motif drag
   selection and `XdndSelection'.  The car and cdr are only set when
   initiating Motif drag-and-drop for the first time.  */
static Lisp_Object x_dnd_selection_alias_cell;

/* The last known position of the tooltip window.  */
static int x_dnd_last_tooltip_x, x_dnd_last_tooltip_y;

/* Whether or not those values are actually known yet.  */
static bool x_dnd_last_tooltip_valid;

#ifdef HAVE_XINPUT2
/* The master pointer device being used for the drag-and-drop
   operation.  */
static int x_dnd_pointer_device;

/* The keyboard device attached to that pointer device.  */
static int x_dnd_keyboard_device;
#endif

/* Structure describing a single window that can be the target of
   drag-and-drop operations.  */
struct x_client_list_window
{
  /* The window itself.  */
  Window window;

  /* The display that window is on.  */
  Display *dpy;

  /* Its X and Y coordinates from the root window.  */
  int x, y;

  /* The width and height of the window.  */
  int width, height;

  /* A bitmask describing events Emacs was listening for from the
     window before some extra events were added in
     `x_dnd_compute_toplevels'.  */
  long previous_event_mask;

  /* The window manager state of the window.  */
  unsigned long wm_state;

  /* The next window in this list.  */
  struct x_client_list_window *next;

  /* The extents of the frame window in each direction.  */
  int frame_extents_left;
  int frame_extents_right;
  int frame_extents_top;
  int frame_extents_bottom;

#ifdef HAVE_XSHAPE
  /* The border width of this window.  */
  int border_width;

  /* The number of rectangles composing the input shape.  */
  int n_input_rects;

  /* The rectangles making up the input shape.  */
  XRectangle *input_rects;

  /* The rectangles making up the bounding shape.  */
  XRectangle *bounding_rects;

  /* The number of rectangles composing the bounding shape.  */
  int n_bounding_rects;
#endif

  /* The Motif protocol style of this window, if any.  */
  uint8_t xm_protocol_style;

  /* Whether or not the window is mapped.  */
  bool mapped_p;
};

/* List of all toplevels in stacking order, from top to bottom.  */
static struct x_client_list_window *x_dnd_toplevels;

/* Whether or not the window manager supports the required features
   for `x_dnd_toplevels' to work.  */
static bool x_dnd_use_toplevels;

\f

/* Motif drag-and-drop protocol support.  */

/* Pointer to a variable which stores whether or not an X error
   occurred while trying to create the Motif drag window.  */
static volatile bool *xm_drag_window_error;

typedef enum xm_byte_order
  {
    XM_BYTE_ORDER_LSB_FIRST = 'l',
    XM_BYTE_ORDER_MSB_FIRST = 'B',
#ifndef WORDS_BIGENDIAN
    XM_BYTE_ORDER_CUR_FIRST = 'l',
#else
    XM_BYTE_ORDER_CUR_FIRST = 'B',
#endif
  } xm_byte_order;

#ifdef ENABLE_CHECKING

#define SWAPCARD32(l)				\
  {						\
    struct { unsigned t : 32; } bit32;		\
    char n, *tp = (char *) &bit32;		\
    bit32.t = l;				\
    n = tp[0]; tp[0] = tp[3]; tp[3] = n;	\
    n = tp[1]; tp[1] = tp[2]; tp[2] = n;	\
    l = bit32.t;				\
  }

#define SWAPCARD16(s)				\
  {						\
    struct { unsigned t : 16; } bit16;		\
    char n, *tp = (char *) &bit16;		\
    bit16.t = s;				\
    n = tp[0]; tp[0] = tp[1]; tp[1] = n;	\
    s = bit16.t;				\
  }

#else
#define SWAPCARD32(l)	((l) = bswap_32 (l))
#define SWAPCARD16(l)	((l) = bswap_16 (l))
#endif

typedef struct xm_targets_table_header
{
  /* BYTE   */ uint8_t byte_order;
  /* BYTE   */ uint8_t protocol;

  /* CARD16 */ uint16_t target_list_count;
  /* CARD32 */ uint32_t total_data_size;
} xm_targets_table_header;

typedef struct xm_targets_table_rec
{
  /* CARD16 */ uint16_t n_targets;
  /* CARD32 */ uint32_t targets[FLEXIBLE_ARRAY_MEMBER];
} xm_targets_table_rec;

typedef struct xm_drop_start_message
{
  /* BYTE   */ uint8_t reason;
  /* BYTE   */ uint8_t byte_order;

  /* CARD16 */ uint16_t side_effects;
  /* CARD32 */ uint32_t timestamp;
  /* CARD16 */ uint16_t x, y;
  /* CARD32 */ uint32_t index_atom;
  /* CARD32 */ uint32_t source_window;
} xm_drop_start_message;

typedef struct xm_drop_start_reply
{
  /* BYTE   */ uint8_t reason;
  /* BYTE   */ uint8_t byte_order;

  /* CARD16 */ uint16_t side_effects;
  /* CARD16 */ uint16_t better_x;
  /* CARD16 */ uint16_t better_y;
} xm_drop_start_reply;

typedef struct xm_drag_initiator_info
{
  /* BYTE   */ uint8_t byteorder;
  /* BYTE   */ uint8_t protocol;

  /* CARD16 */ uint16_t table_index;
  /* CARD32 */ uint32_t selection;
} xm_drag_initiator_info;

typedef struct xm_drag_receiver_info
{
  /* BYTE   */ uint8_t byteorder;
  /* BYTE   */ uint8_t protocol;

  /* BYTE   */ uint8_t protocol_style;
  /* BYTE   */ uint8_t unspecified0;
  /* CARD32 */ uint32_t unspecified1;
  /* CARD32 */ uint32_t unspecified2;
  /* CARD32 */ uint32_t unspecified3;
} xm_drag_receiver_info;

typedef struct xm_top_level_enter_message
{
  /* BYTE   */ uint8_t reason;
  /* BYTE   */ uint8_t byteorder;

  /* CARD16 */ uint16_t zero;
  /* CARD32 */ uint32_t timestamp;
  /* CARD32 */ uint32_t source_window;
  /* CARD32 */ uint32_t index_atom;
} xm_top_level_enter_message;

typedef struct xm_drag_motion_message
{
  /* BYTE   */ uint8_t reason;
  /* BYTE   */ uint8_t byteorder;

  /* CARD16 */ uint16_t side_effects;
  /* CARD32 */ uint32_t timestamp;
  /* CARD16 */ uint16_t x, y;
} xm_drag_motion_message;

typedef struct xm_drag_motion_reply
{
  /* BYTE   */ uint8_t reason;
  /* BYTE   */ uint8_t byte_order;

  /* CARD16 */ uint16_t side_effects;
  /* CARD32 */ uint32_t timestamp;
  /* CARD16 */ uint16_t better_x;
  /* CARD16 */ uint16_t better_y;
} xm_drag_motion_reply;

typedef struct xm_top_level_leave_message
{
  /* BYTE   */ uint8_t reason;
  /* BYTE   */ uint8_t byteorder;

  /* CARD16 */ uint16_t zero;
  /* CARD32 */ uint32_t timestamp;
  /* CARD32 */ uint32_t source_window;
} xm_top_level_leave_message;

#define XM_DRAG_SIDE_EFFECT(op, site, ops, act)		\
  ((op) | ((site) << 4) | ((ops) << 8) | ((act) << 12))

/* Some of the macros below are temporarily unused.  */

#define XM_DRAG_SIDE_EFFECT_OPERATION(effect)	((effect) & 0xf)
#define XM_DRAG_SIDE_EFFECT_SITE_STATUS(effect)	(((effect) & 0xf0) >> 4)
/* #define XM_DRAG_SIDE_EFFECT_OPERATIONS(effect)	(((effect) & 0xf00) >> 8) */
#define XM_DRAG_SIDE_EFFECT_DROP_ACTION(effect)	(((effect) & 0xf000) >> 12)

enum xm_drag_operation
  {
    XM_DRAG_NOOP     = 0,
    XM_DRAG_MOVE     = (1L << 0),
    XM_DRAG_COPY     = (1L << 1),
    XM_DRAG_LINK     = (1L << 2),
    XM_DRAG_LINK_REC = 3,
  };

#define XM_DRAG_OPERATION_IS_LINK(op)	((op) == XM_DRAG_LINK		\
					 || (op) == XM_DRAG_LINK_REC)

enum xm_drag_action
  {
    XM_DROP_ACTION_DROP	       = 0,
    XM_DROP_ACTION_DROP_HELP   = 1,
    XM_DROP_ACTION_DROP_CANCEL = 2,
  };

#define XM_DRAG_REASON(originator, code)	((code) | ((originator) << 7))
#define XM_DRAG_REASON_ORIGINATOR(reason)	(((reason) & 0x80) ? 1 : 0)
#define XM_DRAG_REASON_CODE(reason)		((reason) & 0x7f)

enum xm_drag_reason
  {
    XM_DRAG_REASON_DROP_START	   = 5,
    XM_DRAG_REASON_TOP_LEVEL_ENTER = 0,
    XM_DRAG_REASON_TOP_LEVEL_LEAVE = 1,
    XM_DRAG_REASON_DRAG_MOTION	   = 2,
  };

enum xm_drag_originator
  {
    XM_DRAG_ORIGINATOR_INITIATOR = 0,
    XM_DRAG_ORIGINATOR_RECEIVER	 = 1,
  };

enum xm_drag_style
  {
    /* The values ending with _REC should be treated as equivalent to
       the ones without in messages from the receiver.  */
    XM_DRAG_STYLE_NONE		= 0,
    XM_DRAG_STYLE_DROP_ONLY	= 1,
    XM_DRAG_STYLE_DROP_ONLY_REC = 3,
    XM_DRAG_STYLE_DYNAMIC	= 5,
    XM_DRAG_STYLE_DYNAMIC_REC	= 2,
    XM_DRAG_STYLE_DYNAMIC_REC1	= 4,
  };

#define XM_DRAG_STYLE_IS_DROP_ONLY(n)	((n) == XM_DRAG_STYLE_DROP_ONLY	\
					 || (n) == XM_DRAG_STYLE_DROP_ONLY_REC)
#define XM_DRAG_STYLE_IS_DYNAMIC(n)	((n) == XM_DRAG_STYLE_DYNAMIC	\
					 || (n) == XM_DRAG_STYLE_DYNAMIC_REC \
					 || (n) == XM_DRAG_STYLE_DYNAMIC_REC1)

enum xm_drop_site_status
  {
    XM_DROP_SITE_VALID	 = 3,
    XM_DROP_SITE_INVALID = 2,
    XM_DROP_SITE_NONE	 = 1,
  };

/* The version of the Motif drag-and-drop protocols that Emacs
   supports.  */
#define XM_DRAG_PROTOCOL_VERSION	0

static uint8_t
xm_side_effect_from_action (struct x_display_info *dpyinfo, Atom action)
{
  if (action == dpyinfo->Xatom_XdndActionCopy)
    return XM_DRAG_COPY;
  else if (action == dpyinfo->Xatom_XdndActionMove)
    return XM_DRAG_MOVE;
  else if (action == dpyinfo->Xatom_XdndActionLink)
    return XM_DRAG_LINK;
  else if (action == dpyinfo->Xatom_XdndActionAsk)
    return x_dnd_first_motif_operation;

  return XM_DRAG_NOOP;
}

static uint8_t
xm_operations_from_actions (struct x_display_info *dpyinfo,
			    Atom *ask_actions, int n_ask_actions)
{
  int i;
  uint8_t flags;

  flags = 0;

  for (i = 0; i < n_ask_actions; ++i)
    {
      if (ask_actions[i] == dpyinfo->Xatom_XdndActionCopy)
	flags |= XM_DRAG_COPY;
      else if (ask_actions[i] == dpyinfo->Xatom_XdndActionMove)
	flags |= XM_DRAG_MOVE;
      else if (ask_actions[i] == dpyinfo->Xatom_XdndActionLink)
	flags |= XM_DRAG_LINK;
    }

  return flags;
}

static int
xm_read_targets_table_header (uint8_t *bytes, ptrdiff_t length,
			      xm_targets_table_header *header_return,
			      xm_byte_order *byteorder_return)
{
  if (length < 8)
    return -1;

  header_return->byte_order = *byteorder_return = *(bytes++);
  header_return->protocol = *(bytes++);

  header_return->target_list_count = *(uint16_t *) bytes;
  header_return->total_data_size = *(uint32_t *) (bytes + 2);

  if (header_return->byte_order != XM_BYTE_ORDER_CUR_FIRST)
    {
      SWAPCARD16 (header_return->target_list_count);
      SWAPCARD32 (header_return->total_data_size);
    }

  header_return->byte_order = XM_BYTE_ORDER_CUR_FIRST;

  return 8;
}

static xm_targets_table_rec *
xm_read_targets_table_rec (uint8_t *bytes, ptrdiff_t length,
			   xm_byte_order byteorder)
{
  uint16_t nitems, i;
  xm_targets_table_rec *rec;

  if (length < 2)
    return NULL;

  nitems = *(uint16_t *) bytes;

  if (byteorder != XM_BYTE_ORDER_CUR_FIRST)
    SWAPCARD16 (nitems);

  if (length < 2 + nitems * 4)
    return NULL;

  rec = xmalloc (FLEXSIZEOF (struct xm_targets_table_rec,
			     targets, nitems * 4));
  rec->n_targets = nitems;

  for (i = 0; i < nitems; ++i)
    {
      rec->targets[i] = ((uint32_t *) (bytes + 2))[i];

      if (byteorder != XM_BYTE_ORDER_CUR_FIRST)
	SWAPCARD32 (rec->targets[i]);
    }

  return rec;
}

static int
xm_find_targets_table_idx (xm_targets_table_header *header,
			   xm_targets_table_rec **recs,
			   Atom *sorted_targets, int ntargets)
{
  int j;
  uint16_t i;
  uint32_t *targets;

  targets = alloca (sizeof *targets * ntargets);

  for (j = 0; j < ntargets; ++j)
    targets[j] = sorted_targets[j];

  for (i = 0; i < header->target_list_count; ++i)
    {
      if (recs[i]->n_targets == ntargets
	  && !memcmp (&recs[i]->targets, targets,
		      sizeof *targets * ntargets))
	return i;
    }

  return -1;
}

static int
x_atoms_compare (const void *a, const void *b)
{
  return *(Atom *) a - *(Atom *) b;
}

static void
xm_write_targets_table (Display *dpy, Window wdesc,
			Atom targets_table_atom,
			xm_targets_table_header *header,
			xm_targets_table_rec **recs)
{
  uint8_t *header_buffer, *ptr, *rec_buffer;
  ptrdiff_t rec_buffer_size;
  uint16_t i, j;

  header_buffer = alloca (8);
  ptr = header_buffer;

  *(header_buffer++) = header->byte_order;
  *(header_buffer++) = header->protocol;
  *((uint16_t *) header_buffer) = header->target_list_count;
  *((uint32_t *) (header_buffer + 2)) = header->total_data_size;

  rec_buffer = xmalloc (600);
  rec_buffer_size = 600;

  XChangeProperty (dpy, wdesc, targets_table_atom,
		   targets_table_atom, 8, PropModeReplace,
		   (unsigned char *) ptr, 8);

  for (i = 0; i < header->target_list_count; ++i)
    {
      if (rec_buffer_size < 2 + recs[i]->n_targets * 4)
	{
	  rec_buffer_size = 2 + recs[i]->n_targets * 4;
	  rec_buffer = xrealloc (rec_buffer, rec_buffer_size);
	}

      *((uint16_t *) rec_buffer) = recs[i]->n_targets;

      for (j = 0; j < recs[i]->n_targets; ++j)
	((uint32_t *) (rec_buffer + 2))[j] = recs[i]->targets[j];

      XChangeProperty (dpy, wdesc, targets_table_atom,
		       targets_table_atom, 8, PropModeAppend,
		       (unsigned char *) rec_buffer,
		       2 + recs[i]->n_targets * 4);
    }

  xfree (rec_buffer);
}

static void
xm_write_drag_initiator_info (Display *dpy, Window wdesc,
			      Atom prop_name, Atom type_name,
			      xm_drag_initiator_info *info)
{
  uint8_t *buf;

  buf = alloca (8);
  buf[0] = info->byteorder;
  buf[1] = info->protocol;

  if (info->byteorder != XM_BYTE_ORDER_CUR_FIRST)
    {
      SWAPCARD16 (info->table_index);
      SWAPCARD16 (info->selection);
    }

  *((uint16_t *) (buf + 2)) = info->table_index;
  *((uint32_t *) (buf + 4)) = info->selection;

  XChangeProperty (dpy, wdesc, prop_name, type_name, 8,
		   PropModeReplace, (unsigned char *) buf, 8);
}

static int
xm_drag_window_error_handler (Display *display, XErrorEvent *event)
{
  if (xm_drag_window_error)
    *xm_drag_window_error = true;

  return 0;
}

static _Noreturn int
xm_drag_window_io_error_handler (Display *dpy)
{
  /* DPY isn't created through GDK, so it doesn't matter if we don't
     crash here.  */
  siglongjmp (x_dnd_disconnect_handler, 1);
}

/* Determine whether or not WINDOW exists on DPYINFO by selecting for
   input from it.  */
static bool
x_special_window_exists_p (struct x_display_info *dpyinfo,
			   Window window)
{
  bool rc;

  x_catch_errors (dpyinfo->display);
  XSelectInput (dpyinfo->display, window,
		StructureNotifyMask);
  rc = !x_had_errors_p (dpyinfo->display);
  x_uncatch_errors_after_check ();

  return rc;
}

/* Drag window creation strategy (very tricky, but race-free):

   First look for _MOTIF_DRAG_WINDOW.  If it is already present,
   return it immediately to avoid the overhead of new display
   connections.

   Otherwise, create a new connection to the display. In that
   connection, create a window, which will be the new drag window. Set
   the client disconnect mode of the new connection to
   RetainPermanent, and close it.

   Grab the current display.  Look up _MOTIF_DRAG_WINDOW, the current
   drag window.  If it exists (which means _MOTIF_DRAG_WINDOW was
   created between the first step and now), kill the client that
   created the new drag window to free the client slot on the X
   server.  Otherwise, set _MOTIF_DRAG_WINDOW to the new drag window.

   Ungrab the display and return whichever window is currently in
   _MOTIF_DRAG_WINDOW.  */

static Window
xm_get_drag_window_1 (struct x_display_info *dpyinfo)
{
  Atom actual_type;
  int rc, actual_format;
  unsigned long nitems, bytes_remaining;
  unsigned char *tmp_data = NULL;
  Window drag_window;
  XSetWindowAttributes attrs;
  Display *temp_display;
  Emacs_XErrorHandler old_handler;
  Emacs_XIOErrorHandler old_io_handler;

  /* This is volatile because GCC mistakenly warns about them being
     clobbered by longjmp.  */
  volatile bool error;

  drag_window = None;
  rc = XGetWindowProperty (dpyinfo->display, dpyinfo->root_window,
			   dpyinfo->Xatom_MOTIF_DRAG_WINDOW,
			   0, 1, False, XA_WINDOW, &actual_type,
			   &actual_format, &nitems, &bytes_remaining,
			   &tmp_data) == Success;

  if (rc && actual_type == XA_WINDOW
      && actual_format == 32 && nitems == 1
      && tmp_data)
    {
      drag_window = *(Window *) tmp_data;

      /* This has the side effect of selecting for
	 StructureNotifyMask, meaning that we will get notifications
	 once it is deleted.  */
      rc = x_special_window_exists_p (dpyinfo, drag_window);

      if (!rc)
	drag_window = None;
    }

  if (tmp_data)
    XFree (tmp_data);

  if (drag_window == None)
    {
      block_input ();
      old_io_handler = XSetIOErrorHandler (xm_drag_window_io_error_handler);

      if (sigsetjmp (x_dnd_disconnect_handler, 1))
	{
	  XSetIOErrorHandler (old_io_handler);
	  unblock_input ();

	  return None;
	}

      unrequest_sigio ();
      temp_display = XOpenDisplay (XDisplayString (dpyinfo->display));
      request_sigio ();

      if (!temp_display)
	{
	  XSetIOErrorHandler (old_io_handler);
	  unblock_input ();

	  return None;
	}

      error = false;
      xm_drag_window_error = &error;

      XSetCloseDownMode (temp_display, RetainPermanent);
      old_handler = XSetErrorHandler (xm_drag_window_error_handler);

      attrs.override_redirect = True;
      drag_window = XCreateWindow (temp_display, DefaultRootWindow (temp_display),
				   -1, -1, 1, 1, 0, CopyFromParent, InputOnly,
				   CopyFromParent, CWOverrideRedirect, &attrs);

      /* Handle all errors now.   */
      XSync (temp_display, False);

      /* Some part of the drag window creation process failed, so
	 punt.  Release all resources too.  */
      if (error)
	{
	  XSetCloseDownMode (temp_display, DestroyAll);
	  drag_window = None;
	}

      xm_drag_window_error = NULL;

      /* FIXME: why does XCloseDisplay hang if SIGIO arrives and there
	 are multiple displays? */
      unrequest_sigio ();
      XCloseDisplay (temp_display);
      request_sigio ();

      XSetErrorHandler (old_handler);
      XSetIOErrorHandler (old_io_handler);

      /* Make sure the drag window created is actually valid for the
	 current display, and the XOpenDisplay above didn't
	 accidentally connect to some other display.  */
      if (!x_special_window_exists_p (dpyinfo, drag_window))
	drag_window = None;
      unblock_input ();

      if (drag_window != None)
	{
	  XGrabServer (dpyinfo->display);

	  x_catch_errors (dpyinfo->display);
	  tmp_data = NULL;

	  rc = XGetWindowProperty (dpyinfo->display, dpyinfo->root_window,
				   dpyinfo->Xatom_MOTIF_DRAG_WINDOW,
				   0, 1, False, XA_WINDOW, &actual_type,
				   &actual_format, &nitems, &bytes_remaining,
				   &tmp_data) == Success;

	  if (rc && actual_type == XA_WINDOW
	      && actual_format == 32 && nitems == 1
	      && tmp_data
	      && x_special_window_exists_p (dpyinfo,
					    *(Window *) tmp_data))
	    {
	      /* Kill the client now to avoid leaking a client slot,
		 which is a limited resource.  */
	      XKillClient (dpyinfo->display, drag_window);
	      drag_window = *(Window *) tmp_data;
	    }
	  else
	    XChangeProperty (dpyinfo->display, dpyinfo->root_window,
			     dpyinfo->Xatom_MOTIF_DRAG_WINDOW,
			     XA_WINDOW, 32, PropModeReplace,
			     (unsigned char *) &drag_window, 1);

	  if (tmp_data)
	    XFree (tmp_data);

	  if (x_had_errors_p (dpyinfo->display))
	    drag_window = None;
	  x_uncatch_errors ();

	  XUngrabServer (dpyinfo->display);
	}
    }

  return drag_window;
}

static Window
xm_get_drag_window (struct x_display_info *dpyinfo)
{
  if (dpyinfo->motif_drag_window != None)
    return dpyinfo->motif_drag_window;

  dpyinfo->motif_drag_window = xm_get_drag_window_1 (dpyinfo);
  return dpyinfo->motif_drag_window;
}

static int
xm_setup_dnd_targets (struct x_display_info *dpyinfo,
		      Atom *targets, int ntargets)
{
  Window drag_window;
  Atom *targets_sorted, actual_type;
  unsigned char *tmp_data = NULL;
  unsigned long nitems, bytes_remaining;
  int rc, actual_format, idx;
  bool had_errors;
  xm_targets_table_header header;
  xm_targets_table_rec **recs UNINIT;
  xm_byte_order byteorder;
  uint8_t *data;
  ptrdiff_t total_bytes, total_items, i;
  uint32_t size, target_count;

 retry_drag_window:

  drag_window = xm_get_drag_window (dpyinfo);

  if (drag_window == None || ntargets > 64)
    return -1;

  targets_sorted = xmalloc (sizeof *targets * ntargets);
  memcpy (targets_sorted, targets,
	  sizeof *targets * ntargets);
  qsort (targets_sorted, ntargets,
	 sizeof (Atom), x_atoms_compare);

  XGrabServer (dpyinfo->display);

  x_catch_errors (dpyinfo->display);
  rc = XGetWindowProperty (dpyinfo->display, drag_window,
			   dpyinfo->Xatom_MOTIF_DRAG_TARGETS,
			   0L, LONG_MAX, False,
			   dpyinfo->Xatom_MOTIF_DRAG_TARGETS,
			   &actual_type, &actual_format, &nitems,
			   &bytes_remaining, &tmp_data) == Success;
  had_errors = x_had_errors_p (dpyinfo->display);
  x_uncatch_errors_after_check ();

  /* The drag window is probably invalid, so remove our record of
     it.  */
  if (had_errors)
    {
      dpyinfo->motif_drag_window = None;
      XUngrabServer (dpyinfo->display);

      goto retry_drag_window;
    }

  if (rc && tmp_data && !bytes_remaining
      && actual_type == dpyinfo->Xatom_MOTIF_DRAG_TARGETS
      && actual_format == 8)
    {
      data = (uint8_t *) tmp_data;
      if (xm_read_targets_table_header ((uint8_t *) tmp_data,
					nitems, &header,
					&byteorder) == 8)
	{
	  data += 8;
	  nitems -= 8;
	  total_bytes = 0;
	  total_items = 0;

	  /* The extra rec is used to store a new target list if a
	     preexisting one doesn't already exist.  */
	  recs = xmalloc ((header.target_list_count + 1)
			  * sizeof *recs);

	  while (total_items < header.target_list_count)
	    {
	      recs[total_items] = xm_read_targets_table_rec (data + total_bytes,
							     nitems, byteorder);

	      if (!recs[total_items])
		break;

	      total_bytes += 2 + recs[total_items]->n_targets * 4;
	      nitems -= 2 + recs[total_items]->n_targets * 4;
	      total_items++;
	    }

	  if (header.target_list_count != total_items
	      || header.total_data_size != 8 + total_bytes)
	    {
	      for (i = 0; i < total_items; ++i)
		{
		  if (recs[i])
		      xfree (recs[i]);
		  else
		    break;
		}

	      xfree (recs);

	      rc = false;
	    }
	}
      else
	rc = false;
    }
  else
    rc = false;

  if (tmp_data)
    XFree (tmp_data);

  /* Now rc means whether or not the target lists weren't updated and
     shouldn't be written to the drag window.  */

  if (!rc)
    {
      header.byte_order = XM_BYTE_ORDER_CUR_FIRST;
      header.protocol = XM_DRAG_PROTOCOL_VERSION;
      header.target_list_count = 1;
      header.total_data_size = 8 + 2 + ntargets * 4;

      recs = xmalloc (sizeof *recs);
      recs[0] = xmalloc (FLEXSIZEOF (struct xm_targets_table_rec,
				     targets, ntargets * 4));

      recs[0]->n_targets = ntargets;

      for (i = 0; i < ntargets; ++i)
	recs[0]->targets[i] = targets_sorted[i];

      idx = 0;
    }
  else
    {
      idx = xm_find_targets_table_idx (&header, recs,
				       targets_sorted,
				       ntargets);

      if (idx == -1)
	{
	  target_count = header.target_list_count;
	  rc = false;

	  if (ckd_add (&header.target_list_count, header.target_list_count, 1)
	      || ckd_mul (&size, ntargets, 4)
	      || ckd_add (&header.total_data_size, header.total_data_size, size)
	      || ckd_add (&header.total_data_size, header.total_data_size, 2))
	    {
	      /* Overflow, remove every entry from the targets table
		 and add one for our current targets list.  This
		 confuses real Motif but not GTK 2.x, and there is no
		 other choice.  */

	      for (i = 0; i < target_count; ++i)
		xfree (recs[i]);

	      xfree (recs);

	      header.byte_order = XM_BYTE_ORDER_CUR_FIRST;
	      header.protocol = XM_DRAG_PROTOCOL_VERSION;
	      header.target_list_count = 1;
	      header.total_data_size = 8 + 2 + ntargets * 4;

	      recs = xmalloc (sizeof *recs);
	      recs[0] = xmalloc (FLEXSIZEOF (struct xm_targets_table_rec,
					     targets, ntargets * 4));

	      recs[0]->n_targets = ntargets;

	      for (i = 0; i < ntargets; ++i)
		recs[0]->targets[i] = targets_sorted[i];

	      idx = 0;
	    }
	  else
	    {
	      recs[header.target_list_count - 1]
		= xmalloc (FLEXSIZEOF (struct xm_targets_table_rec,
				       targets, ntargets * 4));
	      recs[header.target_list_count - 1]->n_targets = ntargets;

	      for (i = 0; i < ntargets; ++i)
		recs[header.target_list_count - 1]->targets[i] = targets_sorted[i];

	      idx = header.target_list_count - 1;
	    }
	}
    }

  if (!rc)
    {
      /* Some implementations of Motif DND set the protocol version of
	 just the targets table to 1 without actually changing the
	 data format.  To avoid confusing Motif when that happens, set
	 it back to 0.  There will probably be no more updates to the
	 protocol either.  */
      header.protocol = XM_DRAG_PROTOCOL_VERSION;

      x_catch_errors (dpyinfo->display);
      xm_write_targets_table (dpyinfo->display, drag_window,
			      dpyinfo->Xatom_MOTIF_DRAG_TARGETS,
			      &header, recs);
      /* Presumably we got a BadAlloc upon writing the targets
	 table.  */
      if (x_had_errors_p (dpyinfo->display))
	idx = -1;
      x_uncatch_errors_after_check ();
    }

  XUngrabServer (dpyinfo->display);

  for (i = 0; i < header.target_list_count; ++i)
    xfree (recs[i]);

  xfree (recs);
  xfree (targets_sorted);

  return idx;
}

/* Allocate an atom that will be used for the Motif selection during
   the drag-and-drop operation.

   Grab the server, and then retrieve a list of atoms named
   _EMACS_DRAG_ATOM from the root window.  Find the first atom that
   has no selection owner, own it and return it.  If there is no such
   atom, add a unique atom to the end of the list and return that
   instead.  */

static Atom
xm_get_drag_atom_1 (struct x_display_info *dpyinfo,
		    struct frame *source_frame)
{
  Atom actual_type, *atoms, atom;
  unsigned long nitems, bytes_remaining;
  unsigned char *tmp_data;
  int rc, actual_format;
  unsigned long i;
  char *buffer;
  Window owner;

  /* Make sure this operation is done atomically.  */
  XGrabServer (dpyinfo->display);

  rc = XGetWindowProperty (dpyinfo->display, dpyinfo->root_window,
			   dpyinfo->Xatom_EMACS_DRAG_ATOM,
			   0, LONG_MAX, False, XA_ATOM, &actual_type,
			   &actual_format, &nitems, &bytes_remaining,
			   &tmp_data);
  atom = None;
  /* GCC thinks i is used uninitialized, but it's always initialized if
     `atoms' exists at that particular spot.  */
  i = 0;

  if (rc == Success
      && actual_format == 32 && nitems
      && actual_type == XA_ATOM)
    {
      atoms = (Atom *) tmp_data;

      x_catch_errors (dpyinfo->display);

      for (i = 0; i < nitems; ++i)
	{
	  owner = XGetSelectionOwner (dpyinfo->display, atoms[i]);

	  if (!x_had_errors_p (dpyinfo->display)
	      && (owner == None
		  /* If we already own this selection (even if another
		     frame owns it), use it.  There is no way of
		     knowing when ownership was asserted, so it still
		     has to be owned again.  */
		  || x_window_to_frame (dpyinfo, owner)))
	    {
	      atom = atoms[i];

	      break;
	    }
	}

      x_uncatch_errors ();
    }

  if (tmp_data)
    XFree (tmp_data);

  buffer = dpyinfo->motif_drag_atom_name;

  if (atom)
    {
      sprintf (buffer, "_EMACS_ATOM_%lu", i + 1);
      XSetSelectionOwner (dpyinfo->display, atom,
			  FRAME_X_WINDOW (source_frame),
			  dpyinfo->last_user_time);

      /* The selection's last-change time is newer than our
	 last_user_time, so create a new selection instead.  */
      if (XGetSelectionOwner (dpyinfo->display, atom)
	  != FRAME_X_WINDOW (source_frame))
	atom = None;
    }

  while (!atom)
    {
      sprintf (buffer, "_EMACS_ATOM_%lu", nitems + 1);
      atom = XInternAtom (dpyinfo->display, buffer, False);

      XSetSelectionOwner (dpyinfo->display, atom,
			  FRAME_X_WINDOW (source_frame),
			  dpyinfo->last_user_time);

      XChangeProperty (dpyinfo->display, dpyinfo->root_window,
		       dpyinfo->Xatom_EMACS_DRAG_ATOM, XA_ATOM, 32,
		       (rc != Success
			|| (actual_format != 32
			    || actual_type != XA_ATOM)
			? PropModeReplace : PropModeAppend),
		       (unsigned char *) &atom, 1);

      actual_format = 32;
      actual_type = XA_ATOM;
      rc = Success;
      nitems += 1;

      /* The selection's last-change time is newer than our
	 last_user_time, so create a new selection (again).  */
      if (XGetSelectionOwner (dpyinfo->display, atom)
	  != FRAME_X_WINDOW (source_frame))
	atom = None;
    }

  dpyinfo->motif_drag_atom_time = dpyinfo->last_user_time;
  dpyinfo->motif_drag_atom_owner = source_frame;

  XUngrabServer (dpyinfo->display);
  return atom;
}

static Atom
xm_get_drag_atom (struct x_display_info *dpyinfo)
{
  Atom atom;

  if (dpyinfo->motif_drag_atom != None)
    atom = dpyinfo->motif_drag_atom;
  else
    atom = xm_get_drag_atom_1 (dpyinfo, x_dnd_frame);

  dpyinfo->motif_drag_atom = atom;
  return atom;
}

static void
xm_setup_drag_info (struct x_display_info *dpyinfo,
		    struct frame *source_frame)
{
  Atom atom;
  xm_drag_initiator_info drag_initiator_info;
  int idx;

  atom = xm_get_drag_atom (dpyinfo);

  if (atom == None)
    return;

  XSETCAR (x_dnd_selection_alias_cell,
	   x_atom_to_symbol (dpyinfo, atom));
  XSETCDR (x_dnd_selection_alias_cell, QXdndSelection);

  idx = xm_setup_dnd_targets (dpyinfo, x_dnd_targets,
			      x_dnd_n_targets);

  if (idx != -1)
    {
      drag_initiator_info.byteorder = XM_BYTE_ORDER_CUR_FIRST;
      drag_initiator_info.protocol = XM_DRAG_PROTOCOL_VERSION;
      drag_initiator_info.table_index = idx;
      drag_initiator_info.selection = atom;

      xm_write_drag_initiator_info (dpyinfo->display,
				    FRAME_X_WINDOW (source_frame), atom,
				    dpyinfo->Xatom_MOTIF_DRAG_INITIATOR_INFO,
				    &drag_initiator_info);

      x_dnd_motif_setup_p = true;
      x_dnd_motif_atom = atom;
    }
}

static void
xm_send_drop_message (struct x_display_info *dpyinfo, Window source,
		      Window target, xm_drop_start_message *dmsg)
{
  XEvent msg;

  msg.xclient.type = ClientMessage;
  msg.xclient.message_type
    = dpyinfo->Xatom_MOTIF_DRAG_AND_DROP_MESSAGE;
  msg.xclient.format = 8;
  msg.xclient.window = target;
  msg.xclient.data.b[0] = dmsg->reason;
  msg.xclient.data.b[1] = dmsg->byte_order;
  *((uint16_t *) &msg.xclient.data.b[2]) = dmsg->side_effects;
  *((uint32_t *) &msg.xclient.data.b[4]) = dmsg->timestamp;
  *((uint16_t *) &msg.xclient.data.b[8]) = dmsg->x;
  *((uint16_t *) &msg.xclient.data.b[10]) = dmsg->y;
  *((uint32_t *) &msg.xclient.data.b[12]) = dmsg->index_atom;
  *((uint32_t *) &msg.xclient.data.b[16]) = dmsg->source_window;

  x_ignore_errors_for_next_request (dpyinfo, 0);
  XSendEvent (dpyinfo->display, target, False, NoEventMask, &msg);
  x_stop_ignoring_errors (dpyinfo);
}

static void
xm_send_top_level_enter_message (struct x_display_info *dpyinfo, Window source,
				 Window target, xm_top_level_enter_message *dmsg)
{
  XEvent msg;

  msg.xclient.type = ClientMessage;
  msg.xclient.message_type
    = dpyinfo->Xatom_MOTIF_DRAG_AND_DROP_MESSAGE;
  msg.xclient.format = 8;
  msg.xclient.window = target;
  msg.xclient.data.b[0] = dmsg->reason;
  msg.xclient.data.b[1] = dmsg->byteorder;
  *((uint16_t *) &msg.xclient.data.b[2]) = dmsg->zero;
  *((uint32_t *) &msg.xclient.data.b[4]) = dmsg->timestamp;
  *((uint32_t *) &msg.xclient.data.b[8]) = dmsg->source_window;
  *((uint32_t *) &msg.xclient.data.b[12]) = dmsg->index_atom;
  msg.xclient.data.b[16] = 0;
  msg.xclient.data.b[17] = 0;
  msg.xclient.data.b[18] = 0;
  msg.xclient.data.b[19] = 0;

  x_ignore_errors_for_next_request (dpyinfo, 0);
  XSendEvent (dpyinfo->display, target, False, NoEventMask, &msg);
  x_stop_ignoring_errors (dpyinfo);
}

static void
xm_send_drag_motion_message (struct x_display_info *dpyinfo, Window source,
			     Window target, xm_drag_motion_message *dmsg)
{
  XEvent msg;

  msg.xclient.type = ClientMessage;
  msg.xclient.message_type
    = dpyinfo->Xatom_MOTIF_DRAG_AND_DROP_MESSAGE;
  msg.xclient.format = 8;
  msg.xclient.window = target;
  msg.xclient.data.b[0] = dmsg->reason;
  msg.xclient.data.b[1] = dmsg->byteorder;
  *((uint16_t *) &msg.xclient.data.b[2]) = dmsg->side_effects;
  *((uint32_t *) &msg.xclient.data.b[4]) = dmsg->timestamp;
  *((uint16_t *) &msg.xclient.data.b[8]) = dmsg->x;
  *((uint16_t *) &msg.xclient.data.b[10]) = dmsg->y;
  msg.xclient.data.b[12] = 0;
  msg.xclient.data.b[13] = 0;
  msg.xclient.data.b[14] = 0;
  msg.xclient.data.b[15] = 0;
  msg.xclient.data.b[16] = 0;
  msg.xclient.data.b[17] = 0;
  msg.xclient.data.b[18] = 0;
  msg.xclient.data.b[19] = 0;

  x_ignore_errors_for_next_request (dpyinfo, 0);
  XSendEvent (dpyinfo->display, target, False, NoEventMask, &msg);
  x_stop_ignoring_errors (dpyinfo);
}

static void
xm_send_top_level_leave_message (struct x_display_info *dpyinfo, Window source,
				 Window target, xm_top_level_leave_message *dmsg)
{
  XEvent msg;
  xm_drag_motion_message mmsg;

  /* Motif support for TOP_LEVEL_LEAVE has bitrotted, since these days
     it assumes every client supports the preregister protocol style,
     but we only support drop-only and dynamic.  (Interestingly enough
     LessTif works fine.)  Sending an event with impossible
     coordinates serves to get rid of any active drop site that might
     still be around in the target drag context.  */

  if (x_dnd_fix_motif_leave)
    {
      mmsg.reason = XM_DRAG_REASON (XM_DRAG_ORIGINATOR_INITIATOR,
				    XM_DRAG_REASON_DRAG_MOTION);
      mmsg.byteorder = XM_BYTE_ORDER_CUR_FIRST;
      mmsg.side_effects = XM_DRAG_SIDE_EFFECT (xm_side_effect_from_action (dpyinfo,
									   x_dnd_wanted_action),
					       XM_DROP_SITE_NONE, x_dnd_motif_operations,
					       XM_DROP_ACTION_DROP_CANCEL);
      mmsg.timestamp = dmsg->timestamp;

      /* Use X_SHRT_MAX instead of the max value of uint16_t since
	 that will be interpreted as a plausible position by Motif,
	 and as such breaks if the drop target is beneath that
	 position.  */
      mmsg.x = X_SHRT_MAX;
      mmsg.y = X_SHRT_MAX;

      xm_send_drag_motion_message (dpyinfo, source, target, &mmsg);
    }

  msg.xclient.type = ClientMessage;
  msg.xclient.message_type
    = dpyinfo->Xatom_MOTIF_DRAG_AND_DROP_MESSAGE;
  msg.xclient.format = 8;
  msg.xclient.window = target;
  msg.xclient.data.b[0] = dmsg->reason;
  msg.xclient.data.b[1] = dmsg->byteorder;
  *((uint16_t *) &msg.xclient.data.b[2]) = dmsg->zero;
  *((uint32_t *) &msg.xclient.data.b[4]) = dmsg->timestamp;
  *((uint32_t *) &msg.xclient.data.b[8]) = dmsg->source_window;
  msg.xclient.data.b[12] = 0;
  msg.xclient.data.b[13] = 0;
  msg.xclient.data.b[14] = 0;
  msg.xclient.data.b[15] = 0;
  msg.xclient.data.b[16] = 0;
  msg.xclient.data.b[17] = 0;
  msg.xclient.data.b[18] = 0;
  msg.xclient.data.b[19] = 0;

  x_ignore_errors_for_next_request (dpyinfo, 0);
  XSendEvent (dpyinfo->display, target, False, NoEventMask, &msg);
  x_stop_ignoring_errors (dpyinfo);
}

static int
xm_read_drop_start_reply (const XEvent *msg, xm_drop_start_reply *reply)
{
  const uint8_t *data;

  data = (const uint8_t *) &msg->xclient.data.b[0];

  if ((XM_DRAG_REASON_ORIGINATOR (data[0])
       != XM_DRAG_ORIGINATOR_RECEIVER)
      || (XM_DRAG_REASON_CODE (data[0])
	  != XM_DRAG_REASON_DROP_START))
    return 1;

  reply->reason = *(data++);
  reply->byte_order = *(data++);
  reply->side_effects = *(uint16_t *) data;
  reply->better_x = *(uint16_t *) (data + 2);
  reply->better_y = *(uint16_t *) (data + 4);

  if (reply->byte_order != XM_BYTE_ORDER_CUR_FIRST)
    {
      SWAPCARD16 (reply->side_effects);
      SWAPCARD16 (reply->better_x);
      SWAPCARD16 (reply->better_y);
    }

  reply->byte_order = XM_BYTE_ORDER_CUR_FIRST;

  return 0;
}

static int
xm_read_drop_start_message (const XEvent *msg,
			    xm_drop_start_message *dmsg)
{
  const uint8_t *data;

  data = (const uint8_t *) &msg->xclient.data.b[0];

  if ((XM_DRAG_REASON_ORIGINATOR (data[0])
       != XM_DRAG_ORIGINATOR_INITIATOR)
      || (XM_DRAG_REASON_CODE (data[0])
	  != XM_DRAG_REASON_DROP_START))
    return 1;

  dmsg->reason = *(data++);
  dmsg->byte_order = *(data++);
  dmsg->side_effects = *(uint16_t *) data;
  dmsg->timestamp = *(uint32_t *) (data + 2);
  dmsg->x = *(uint16_t *) (data + 6);
  dmsg->y = *(uint16_t *) (data + 8);
  dmsg->index_atom = *(uint32_t *) (data + 10);
  dmsg->source_window = *(uint32_t *) (data + 14);

  if (dmsg->byte_order != XM_BYTE_ORDER_CUR_FIRST)
    {
      SWAPCARD16 (dmsg->side_effects);
      SWAPCARD32 (dmsg->timestamp);
      SWAPCARD16 (dmsg->x);
      SWAPCARD16 (dmsg->y);
      SWAPCARD32 (dmsg->index_atom);
      SWAPCARD32 (dmsg->source_window);
    }

  dmsg->byte_order = XM_BYTE_ORDER_CUR_FIRST;

  return 0;
}

static int
xm_read_drag_receiver_info (struct x_display_info *dpyinfo,
			    Window wdesc, xm_drag_receiver_info *rec)
{
  Atom actual_type;
  int rc, actual_format;
  unsigned long nitems, bytes_remaining;
  unsigned char *tmp_data = NULL;
  uint8_t *data;

  x_catch_errors (dpyinfo->display);
  rc = XGetWindowProperty (dpyinfo->display, wdesc,
			   dpyinfo->Xatom_MOTIF_DRAG_RECEIVER_INFO,
			   0, 4, False,
			   dpyinfo->Xatom_MOTIF_DRAG_RECEIVER_INFO,
			   &actual_type, &actual_format, &nitems,
			   &bytes_remaining,
			   &tmp_data) == Success;

  if (x_had_errors_p (dpyinfo->display)
      || actual_format != 8 || nitems < 16 || !tmp_data
      || actual_type != dpyinfo->Xatom_MOTIF_DRAG_RECEIVER_INFO)
    rc = 0;
  x_uncatch_errors_after_check ();

  if (rc)
    {
      data = (uint8_t *) tmp_data;

      if (data[1] > XM_DRAG_PROTOCOL_VERSION)
	return 1;

      rec->byteorder = data[0];
      rec->protocol = data[1];
      rec->protocol_style = data[2];
      rec->unspecified0 = data[3];
      rec->unspecified1 = *(uint32_t *) &data[4];
      rec->unspecified2 = *(uint32_t *) &data[8];
      rec->unspecified3 = *(uint32_t *) &data[12];

      if (rec->byteorder != XM_BYTE_ORDER_CUR_FIRST)
	{
	  SWAPCARD32 (rec->unspecified1);
	  SWAPCARD32 (rec->unspecified2);
	  SWAPCARD32 (rec->unspecified3);
	}

      rec->byteorder = XM_BYTE_ORDER_CUR_FIRST;
    }

  if (tmp_data)
    XFree (tmp_data);

  return !rc;
}

static int
xm_read_drag_motion_message (const XEvent *msg,
			     xm_drag_motion_message *dmsg)
{
  const uint8_t *data;

  data = (const uint8_t *) &msg->xclient.data.b[0];

  if ((XM_DRAG_REASON_CODE (data[0])
       != XM_DRAG_REASON_DRAG_MOTION)
      || (XM_DRAG_REASON_ORIGINATOR (data[0])
	  != XM_DRAG_ORIGINATOR_INITIATOR))
    return 1;

  dmsg->reason = *(data++);
  dmsg->byteorder = *(data++);
  dmsg->side_effects = *(uint16_t *) data;
  dmsg->timestamp = *(uint32_t *) (data + 2);
  dmsg->x = *(uint16_t *) (data + 6);
  dmsg->y = *(uint16_t *) (data + 8);

  if (dmsg->byteorder != XM_BYTE_ORDER_CUR_FIRST)
    {
      SWAPCARD16 (dmsg->side_effects);
      SWAPCARD32 (dmsg->timestamp);
      SWAPCARD16 (dmsg->x);
      SWAPCARD16 (dmsg->y);
    }

  dmsg->byteorder = XM_BYTE_ORDER_CUR_FIRST;

  return 0;
}

static int
xm_read_drag_motion_reply (const XEvent *msg, xm_drag_motion_reply *reply)
{
  const uint8_t *data;

  data = (const uint8_t *) &msg->xclient.data.b[0];

  if ((XM_DRAG_REASON_CODE (data[0])
       != XM_DRAG_REASON_DRAG_MOTION)
      || (XM_DRAG_REASON_ORIGINATOR (data[0])
	  != XM_DRAG_ORIGINATOR_RECEIVER))
    return 1;

  reply->reason = *(data++);
  reply->byte_order = *(data++);
  reply->side_effects = *(uint16_t *) data;
  reply->timestamp = *(uint32_t *) (data + 2);
  reply->better_x = *(uint16_t *) (data + 6);
  reply->better_y = *(uint16_t *) (data + 8);

  if (reply->byte_order != XM_BYTE_ORDER_CUR_FIRST)
    {
      SWAPCARD16 (reply->side_effects);
      SWAPCARD32 (reply->timestamp);
      SWAPCARD16 (reply->better_x);
      SWAPCARD16 (reply->better_y);
    }

  reply->byte_order = XM_BYTE_ORDER_CUR_FIRST;

  return 0;
}

static void
x_dnd_send_xm_leave_for_drop (struct x_display_info *dpyinfo,
			      struct frame *f, Window wdesc,
			      Time timestamp)
{
  xm_top_level_leave_message lmsg;

  lmsg.reason = XM_DRAG_REASON (XM_DRAG_ORIGINATOR_INITIATOR,
				XM_DRAG_REASON_TOP_LEVEL_LEAVE);
  lmsg.byteorder = XM_BYTE_ORDER_CUR_FIRST;
  lmsg.zero = 0;
  lmsg.timestamp = timestamp;
  lmsg.source_window = FRAME_X_WINDOW (f);

  if (x_dnd_motif_setup_p)
    xm_send_top_level_leave_message (dpyinfo, FRAME_X_WINDOW (f),
				     wdesc, &lmsg);
}

\f

/* Drag-and-drop and XDND protocol primitives employed by the event
   loop.  */

static void
x_dnd_free_toplevels (bool display_alive)
{
  struct x_client_list_window *last;
  struct x_client_list_window *tem = x_dnd_toplevels;
  ptrdiff_t n_windows, i, buffer_size;
  Window *destroy_windows UNINIT;
  unsigned long *prev_masks UNINIT;
  specpdl_ref count;
  Display *dpy UNINIT;
  struct x_display_info *dpyinfo;

  if (!x_dnd_toplevels)
    /* Probably called inside an IO error handler.  */
    return;

  if (display_alive)
    {
      buffer_size = 1024;
      destroy_windows = xmalloc (sizeof *destroy_windows
				 * buffer_size);
      prev_masks = xmalloc (sizeof *prev_masks *
			    buffer_size);
      n_windows = 0;
    }

  block_input ();
  while (tem)
    {
      last = tem;
      tem = tem->next;

      if (display_alive)
	{
	  if (++n_windows >= buffer_size)
	    {
	      buffer_size += 1024;
	      destroy_windows
		= xrealloc (destroy_windows, (sizeof *destroy_windows
					      * buffer_size));
	      prev_masks
		= xrealloc (prev_masks, (sizeof *prev_masks
					 * buffer_size));
	    }

	  dpy = last->dpy;
	  prev_masks[n_windows - 1] = last->previous_event_mask;
	  destroy_windows[n_windows - 1] = last->window;
	}

#ifdef HAVE_XSHAPE
      if (last->n_input_rects != -1)
	xfree (last->input_rects);
      if (last->n_bounding_rects != -1)
	xfree (last->bounding_rects);
#endif

      xfree (last);
    }

  x_dnd_toplevels = NULL;

  if (!display_alive)
    {
      unblock_input ();
      return;
    }

  count = SPECPDL_INDEX ();
  record_unwind_protect_ptr (xfree, destroy_windows);
  record_unwind_protect_ptr (xfree, prev_masks);

  if (display_alive)
    {
      dpyinfo = x_display_info_for_display (dpy);

      if (n_windows)
	{
	  eassume (dpyinfo);
	  x_ignore_errors_for_next_request (dpyinfo, 0);

	  for (i = 0; i < n_windows; ++i)
	    {
	      XSelectInput (dpy, destroy_windows[i], prev_masks[i]);
#ifdef HAVE_XSHAPE
	      XShapeSelectInput (dpy, destroy_windows[i], None);
#endif
	    }

	  x_stop_ignoring_errors (dpyinfo);
	}
    }

  unbind_to (count, Qnil);
  unblock_input ();
}

static int
x_dnd_compute_toplevels (struct x_display_info *dpyinfo)
{
  Atom type;
  Window *toplevels;
  int format, rc;
  unsigned long nitems, bytes_after;
  unsigned long i, real_nitems;
  unsigned char *data = NULL;
  int frame_extents[4];

#ifndef USE_XCB
  int dest_x, dest_y;
  unsigned long *wmstate;
  unsigned long wmstate_items, extent_items;
  unsigned char *wmstate_data = NULL, *extent_data = NULL;
  XWindowAttributes attrs;
  Window child;
  xm_drag_receiver_info xm_info;
#else
  uint32_t *wmstate, *fextents;
  uint8_t *xmdata;
  xcb_get_window_attributes_cookie_t *window_attribute_cookies;
  xcb_translate_coordinates_cookie_t *translate_coordinate_cookies;
  xcb_get_property_cookie_t *get_property_cookies;
  xcb_get_property_cookie_t *xm_property_cookies;
  xcb_get_property_cookie_t *extent_property_cookies;
  xcb_get_geometry_cookie_t *get_geometry_cookies;
  xcb_get_window_attributes_reply_t attrs, *attrs_reply;
  xcb_translate_coordinates_reply_t *coordinates_reply;
  xcb_get_property_reply_t *property_reply;
  xcb_get_property_reply_t *xm_property_reply;
  xcb_get_property_reply_t *extent_property_reply;
  xcb_get_geometry_reply_t *geometry_reply;
  xcb_generic_error_t *error;
#endif

#ifdef HAVE_XCB_SHAPE
  xcb_shape_get_rectangles_cookie_t *bounding_rect_cookies;
  xcb_shape_get_rectangles_reply_t *bounding_rect_reply;
  xcb_rectangle_iterator_t bounding_rect_iterator;
#endif

#ifdef HAVE_XCB_SHAPE_INPUT_RECTS
  xcb_shape_get_rectangles_cookie_t *input_rect_cookies;
  xcb_shape_get_rectangles_reply_t *input_rect_reply;
  xcb_rectangle_iterator_t input_rect_iterator;
#endif

  struct x_client_list_window *tem;
#if defined HAVE_XSHAPE && !defined HAVE_XCB_SHAPE_INPUT_RECTS
  int count, ordering;
  XRectangle *rects;
#endif

  rc = XGetWindowProperty (dpyinfo->display, dpyinfo->root_window,
			   dpyinfo->Xatom_net_client_list_stacking,
			   0, LONG_MAX, False, XA_WINDOW, &type,
			   &format, &nitems, &bytes_after, &data);

  if (rc != Success)
    return 1;

  if (format != 32 || type != XA_WINDOW)
    {
      XFree (data);
      return 1;
    }

  toplevels = (Window *) data;

  for (i = 0, real_nitems = 0; i < nitems; ++i)
    {
      /* Some window managers with built in compositors end up putting
	 tooltips in the client list, which is silly.  */
      if (!x_tooltip_window_to_frame (dpyinfo, toplevels[i], NULL))
	toplevels[real_nitems++] = toplevels[i];
    }

  nitems = real_nitems;

#ifdef USE_XCB
  USE_SAFE_ALLOCA;

  window_attribute_cookies
    = SAFE_ALLOCA (sizeof *window_attribute_cookies * nitems);
  translate_coordinate_cookies
    = SAFE_ALLOCA (sizeof *translate_coordinate_cookies * nitems);
  get_property_cookies
    = SAFE_ALLOCA (sizeof *get_property_cookies * nitems);
  xm_property_cookies
    = SAFE_ALLOCA (sizeof *xm_property_cookies * nitems);
  extent_property_cookies
    = SAFE_ALLOCA (sizeof *extent_property_cookies * nitems);
  get_geometry_cookies
    = SAFE_ALLOCA (sizeof *get_geometry_cookies * nitems);

#ifdef HAVE_XCB_SHAPE
  bounding_rect_cookies
    = SAFE_ALLOCA (sizeof *bounding_rect_cookies * nitems);
#endif

#ifdef HAVE_XCB_SHAPE_INPUT_RECTS
  input_rect_cookies
    = SAFE_ALLOCA (sizeof *input_rect_cookies * nitems);
#endif

  for (i = 0; i < nitems; ++i)
    {
      window_attribute_cookies[i]
	= xcb_get_window_attributes (dpyinfo->xcb_connection,
				     (xcb_window_t) toplevels[i]);
      translate_coordinate_cookies[i]
	= xcb_translate_coordinates (dpyinfo->xcb_connection,
				     (xcb_window_t) toplevels[i],
				     (xcb_window_t) dpyinfo->root_window,
				     0, 0);
      get_property_cookies[i]
	= xcb_get_property (dpyinfo->xcb_connection, 0, (xcb_window_t) toplevels[i],
			    (xcb_atom_t) dpyinfo->Xatom_wm_state, 0,
			    0, 2);
      xm_property_cookies[i]
	= xcb_get_property (dpyinfo->xcb_connection, 0, (xcb_window_t) toplevels[i],
			    (xcb_atom_t) dpyinfo->Xatom_MOTIF_DRAG_RECEIVER_INFO,
			    (xcb_atom_t) dpyinfo->Xatom_MOTIF_DRAG_RECEIVER_INFO,
			    0, 4);
      extent_property_cookies[i]
	= xcb_get_property (dpyinfo->xcb_connection, 0,
			    (xcb_window_t) toplevels[i],
			    (xcb_atom_t) dpyinfo->Xatom_net_frame_extents,
			    XA_CARDINAL, 0, 4);
      get_geometry_cookies[i]
	= xcb_get_geometry (dpyinfo->xcb_connection, (xcb_window_t) toplevels[i]);

#ifdef HAVE_XCB_SHAPE
      bounding_rect_cookies[i]
	= xcb_shape_get_rectangles (dpyinfo->xcb_connection,
				    (xcb_window_t) toplevels[i],
				    XCB_SHAPE_SK_BOUNDING);
#endif

#ifdef HAVE_XCB_SHAPE_INPUT_RECTS
      if (dpyinfo->xshape_major > 1
	  || (dpyinfo->xshape_major == 1
	      && dpyinfo->xshape_minor >= 1))
	input_rect_cookies[i]
	  = xcb_shape_get_rectangles (dpyinfo->xcb_connection,
				      (xcb_window_t) toplevels[i],
				      XCB_SHAPE_SK_INPUT);
#endif
    }
#endif

  /* Actually right because _NET_CLIENT_LIST_STACKING has bottom-up
     order.  */
  for (i = 0; i < nitems; ++i)
    {
      frame_extents[0] = 0;
      frame_extents[1] = 0;
      frame_extents[2] = 0;
      frame_extents[3] = 0;

#ifndef USE_XCB
      x_catch_errors (dpyinfo->display);
      rc = (XGetWindowAttributes (dpyinfo->display,
				  toplevels[i], &attrs)
	    && !x_had_errors_p (dpyinfo->display));

      if (rc)
	rc = (XTranslateCoordinates (dpyinfo->display, toplevels[i],
				     attrs.root, -attrs.border_width,
				     -attrs.border_width, &dest_x,
				     &dest_y, &child)
	      && !x_had_errors_p (dpyinfo->display));
      if (rc)
	rc = ((XGetWindowProperty (dpyinfo->display,
				   toplevels[i],
				   dpyinfo->Xatom_wm_state,
				   0, 2, False, AnyPropertyType,
				   &type, &format, &wmstate_items,
				   &bytes_after, &wmstate_data)
	       == Success)
	      && !x_had_errors_p (dpyinfo->display)
	      && wmstate_data && wmstate_items == 2 && format == 32);

      if (XGetWindowProperty (dpyinfo->display, toplevels[i],
			      dpyinfo->Xatom_net_frame_extents,
			      0, 4, False, XA_CARDINAL, &type,
			      &format, &extent_items, &bytes_after,
			      &extent_data) == Success
	  && !x_had_errors_p (dpyinfo->display)
	  && extent_data && extent_items >= 4 && format == 32)
	{
	  frame_extents[0] = ((unsigned long *) extent_data)[0];
	  frame_extents[1] = ((unsigned long *) extent_data)[1];
	  frame_extents[2] = ((unsigned long *) extent_data)[2];
	  frame_extents[3] = ((unsigned long *) extent_data)[3];
	}

      if (extent_data)
	XFree (extent_data);

      x_uncatch_errors ();
#else
      rc = true;

      attrs_reply
	= xcb_get_window_attributes_reply (dpyinfo->xcb_connection,
					   window_attribute_cookies[i],
					   &error);

      if (!attrs_reply)
	{
	  rc = false;
	  free (error);
	}

      coordinates_reply
	= xcb_translate_coordinates_reply (dpyinfo->xcb_connection,
					   translate_coordinate_cookies[i],
					   &error);

      if (!coordinates_reply)
	{
	  rc = false;
	  free (error);
	}

      property_reply = xcb_get_property_reply (dpyinfo->xcb_connection,
					       get_property_cookies[i],
					       &error);

      if (!property_reply)
	{
	  rc = false;
	  free (error);
	}

      /* These requests don't set rc on failure because they aren't
	 required.  */

      xm_property_reply = xcb_get_property_reply (dpyinfo->xcb_connection,
						  xm_property_cookies[i],
						  &error);

      if (!xm_property_reply)
	free (error);

      extent_property_reply
	= xcb_get_property_reply (dpyinfo->xcb_connection,
				  extent_property_cookies[i],
				  &error);

      if (!extent_property_reply)
	free (error);
      else
	{
	  if (xcb_get_property_value_length (extent_property_reply) == 16
	      && extent_property_reply->format == 32
	      && extent_property_reply->type == XA_CARDINAL)
	    {
	      fextents = xcb_get_property_value (extent_property_reply);
	      frame_extents[0] = fextents[0];
	      frame_extents[1] = fextents[1];
	      frame_extents[2] = fextents[2];
	      frame_extents[3] = fextents[3];
	    }

	  free (extent_property_reply);
	}

      if (property_reply
	  && (xcb_get_property_value_length (property_reply) != 8
	      || property_reply->format != 32))
	rc = false;

      geometry_reply = xcb_get_geometry_reply (dpyinfo->xcb_connection,
					       get_geometry_cookies[i],
					       &error);

      if (!geometry_reply)
	{
	  rc = false;
	  free (error);
	}
#endif

      if (rc)
	{
#ifdef USE_XCB
	  wmstate = (uint32_t *) xcb_get_property_value (property_reply);
	  attrs = *attrs_reply;
#else
	  wmstate = (unsigned long *) wmstate_data;
#endif

	  tem = xmalloc (sizeof *tem);
	  tem->window = toplevels[i];
	  tem->dpy = dpyinfo->display;
	  tem->frame_extents_left = frame_extents[0];
	  tem->frame_extents_right = frame_extents[1];
	  tem->frame_extents_top = frame_extents[2];
	  tem->frame_extents_bottom = frame_extents[3];

#ifndef USE_XCB
	  tem->x = dest_x;
	  tem->y = dest_y;
	  tem->width = attrs.width + attrs.border_width;
	  tem->height = attrs.height + attrs.border_width;
	  tem->mapped_p = (attrs.map_state != IsUnmapped);
#else
	  tem->x = (coordinates_reply->dst_x
		    - geometry_reply->border_width);
	  tem->y = (coordinates_reply->dst_y
		    - geometry_reply->border_width);
	  tem->width = (geometry_reply->width
			+ geometry_reply->border_width);
	  tem->height = (geometry_reply->height
			 + geometry_reply->border_width);
	  tem->mapped_p = (attrs.map_state != XCB_MAP_STATE_UNMAPPED);
#endif
	  tem->next = x_dnd_toplevels;
	  tem->previous_event_mask = attrs.your_event_mask;
	  tem->wm_state = wmstate[0];
	  tem->xm_protocol_style = XM_DRAG_STYLE_NONE;

#ifndef USE_XCB
	  if (!xm_read_drag_receiver_info (dpyinfo, toplevels[i], &xm_info))
	    tem->xm_protocol_style = xm_info.protocol_style;
#else
	  if (xm_property_reply
	      && xm_property_reply->format == 8
	      && (xm_property_reply->type
		  == dpyinfo->Xatom_MOTIF_DRAG_RECEIVER_INFO)
	      && xcb_get_property_value_length (xm_property_reply) >= 4)
	    {
	      xmdata = xcb_get_property_value (xm_property_reply);

	      if (xmdata[1] <= XM_DRAG_PROTOCOL_VERSION)
		tem->xm_protocol_style = xmdata[2];
	    }
#endif

#ifdef HAVE_XSHAPE
#ifndef USE_XCB
	  tem->border_width = attrs.border_width;
#else
	  tem->border_width = geometry_reply->border_width;
#endif
	  tem->n_bounding_rects = -1;
	  tem->n_input_rects = -1;

	  if (dpyinfo->xshape_supported_p)
	    {
	      x_ignore_errors_for_next_request (dpyinfo, 0);
	      XShapeSelectInput (dpyinfo->display,
				 toplevels[i],
				 ShapeNotifyMask);
	      x_stop_ignoring_errors (dpyinfo);

#ifndef HAVE_XCB_SHAPE
	      x_catch_errors (dpyinfo->display);
	      rects = XShapeGetRectangles (dpyinfo->display,
					   toplevels[i],
					   ShapeBounding,
					   &count, &ordering);
	      rc = x_had_errors_p (dpyinfo->display);
	      x_uncatch_errors_after_check ();

	      /* Does XShapeGetRectangles allocate anything upon an
		 error?  */
	      if (!rc)
		{
		  tem->n_bounding_rects = count;
		  tem->bounding_rects
		    = xmalloc (sizeof *tem->bounding_rects * count);
		  memcpy (tem->bounding_rects, rects,
			  sizeof *tem->bounding_rects * count);

		  XFree (rects);
		}
#else
	      bounding_rect_reply
		= xcb_shape_get_rectangles_reply (dpyinfo->xcb_connection,
						  bounding_rect_cookies[i],
						  &error);

	      if (bounding_rect_reply)
		{
		  bounding_rect_iterator
		    = xcb_shape_get_rectangles_rectangles_iterator (bounding_rect_reply);
		  tem->n_bounding_rects = bounding_rect_iterator.rem + 1;
		  tem->bounding_rects = xmalloc (tem->n_bounding_rects
						 * sizeof *tem->bounding_rects);
		  tem->n_bounding_rects = 0;

		  for (; bounding_rect_iterator.rem;
		       xcb_rectangle_next (&bounding_rect_iterator))
		    {
		      tem->bounding_rects[tem->n_bounding_rects].x
			= bounding_rect_iterator.data->x;
		      tem->bounding_rects[tem->n_bounding_rects].y
			= bounding_rect_iterator.data->y;
		      tem->bounding_rects[tem->n_bounding_rects].width
			= bounding_rect_iterator.data->width;
		      tem->bounding_rects[tem->n_bounding_rects].height
			= bounding_rect_iterator.data->height;

		      tem->n_bounding_rects++;
		    }

		  free (bounding_rect_reply);
		}
	      else
		free (error);
#endif

#ifdef HAVE_XCB_SHAPE_INPUT_RECTS
	      if (dpyinfo->xshape_major > 1
		  || (dpyinfo->xshape_major == 1
		      && dpyinfo->xshape_minor >= 1))
		{
		  input_rect_reply
		    = xcb_shape_get_rectangles_reply (dpyinfo->xcb_connection,
						      input_rect_cookies[i],
						      &error);

		  if (input_rect_reply)
		    {
		      input_rect_iterator
			= xcb_shape_get_rectangles_rectangles_iterator (input_rect_reply);
		      tem->n_input_rects = input_rect_iterator.rem + 1;
		      tem->input_rects = xmalloc (tem->n_input_rects
						  * sizeof *tem->input_rects);
		      tem->n_input_rects = 0;

		      for (; input_rect_iterator.rem;
			   xcb_rectangle_next (&input_rect_iterator))
			{
			  tem->input_rects[tem->n_input_rects].x
			    = input_rect_iterator.data->x;
			  tem->input_rects[tem->n_input_rects].y
			    = input_rect_iterator.data->y;
			  tem->input_rects[tem->n_input_rects].width
			    = input_rect_iterator.data->width;
			  tem->input_rects[tem->n_input_rects].height
			    = input_rect_iterator.data->height;

			  tem->n_input_rects++;
			}

		      free (input_rect_reply);
		    }
		  else
		    free (error);
		}
#else
#ifdef ShapeInput
	      if (dpyinfo->xshape_major > 1
		  || (dpyinfo->xshape_major == 1
		      && dpyinfo->xshape_minor >= 1))
		{
		  x_catch_errors (dpyinfo->display);
		  rects = XShapeGetRectangles (dpyinfo->display,
					       toplevels[i], ShapeInput,
					       &count, &ordering);
		  rc = x_had_errors_p (dpyinfo->display);
		  x_uncatch_errors_after_check ();

		  /* Does XShapeGetRectangles allocate anything upon
		     an error?  */
		  if (!rc)
		    {
		      tem->n_input_rects = count;
		      tem->input_rects
			= xmalloc (sizeof *tem->input_rects * count);
		      memcpy (tem->input_rects, rects,
			      sizeof *tem->input_rects * count);

		      XFree (rects);
		    }
		}
#endif
#endif
	    }

	  /* Handle the common case where the input shape equals the
	     bounding shape.  */

	  if (tem->n_input_rects != -1
	      && tem->n_bounding_rects == tem->n_input_rects
	      && !memcmp (tem->bounding_rects, tem->input_rects,
			  tem->n_input_rects * sizeof *tem->input_rects))
	    {
	      xfree (tem->input_rects);
	      tem->n_input_rects = -1;
	    }

	  /* And the common case where there is no input rect and the
	     bounding rect equals the window dimensions.  */

	  if (tem->n_input_rects == -1
	      && tem->n_bounding_rects == 1
#ifdef USE_XCB
	      && (tem->bounding_rects[0].width
		  == (geometry_reply->width
		      + geometry_reply->border_width))
	      && (tem->bounding_rects[0].height
		  == (geometry_reply->height
		      + geometry_reply->border_width))
	      && (tem->bounding_rects[0].x
		  == -geometry_reply->border_width)
	      && (tem->bounding_rects[0].y
		  == -geometry_reply->border_width)
#else
	      && (tem->bounding_rects[0].width
		  == attrs.width + attrs.border_width)
	      && (tem->bounding_rects[0].height
		  == attrs.height + attrs.border_width)
	      && (tem->bounding_rects[0].x
		  == -attrs.border_width)
	      && (tem->bounding_rects[0].y
		  == -attrs.border_width)
#endif
	      )
	    {
	      xfree (tem->bounding_rects);
	      tem->n_bounding_rects = -1;
	    }
#endif

	  x_ignore_errors_for_next_request (dpyinfo, 0);
	  XSelectInput (dpyinfo->display, toplevels[i],
			(attrs.your_event_mask
			 | StructureNotifyMask
			 | PropertyChangeMask));
	  x_stop_ignoring_errors (dpyinfo);

	  x_dnd_toplevels = tem;
	}
      else
	{
#ifdef HAVE_XCB_SHAPE
	  if (dpyinfo->xshape_supported_p)
	    {
	      bounding_rect_reply
		= xcb_shape_get_rectangles_reply (dpyinfo->xcb_connection,
						  bounding_rect_cookies[i],
						  &error);

	      if (bounding_rect_reply)
		free (bounding_rect_reply);
	      else
		free (error);
	    }
#endif

#ifdef HAVE_XCB_SHAPE_INPUT_RECTS
	  if (dpyinfo->xshape_supported_p
	      && (dpyinfo->xshape_major > 1
		  || (dpyinfo->xshape_major == 1
		      && dpyinfo->xshape_minor >= 1)))
	    {
	      input_rect_reply
		= xcb_shape_get_rectangles_reply (dpyinfo->xcb_connection,
						  input_rect_cookies[i],
						  &error);

	      if (input_rect_reply)
		free (input_rect_reply);
	      else
		free (error);
	    }
#endif
	}

#ifdef USE_XCB
      if (attrs_reply)
	free (attrs_reply);

      if (coordinates_reply)
	free (coordinates_reply);

      if (property_reply)
	free (property_reply);

      if (xm_property_reply)
	free (xm_property_reply);

      if (geometry_reply)
	free (geometry_reply);
#endif

#ifndef USE_XCB
      if (wmstate_data)
	{
	  XFree (wmstate_data);
	  wmstate_data = NULL;
	}
#endif
    }

#ifdef USE_XCB
  SAFE_FREE ();
#endif

  if (data)
    XFree (data);

  return 0;
}

static _Noreturn int
x_dnd_io_error_handler (Display *display)
{
#ifdef USE_GTK
  emacs_abort ();
#else
  siglongjmp (x_dnd_disconnect_handler, 1);
#endif
}

#define X_DND_SUPPORTED_VERSION 5

static int x_dnd_get_window_proto (struct x_display_info *, Window);
static Window x_dnd_get_window_proxy (struct x_display_info *, Window);
static void x_dnd_update_state (struct x_display_info *, Time);

#ifdef USE_XCB
static void
x_dnd_get_proxy_proto (struct x_display_info *dpyinfo, Window wdesc,
		       Window *proxy_out, int *proto_out)
{
  xcb_get_property_cookie_t xdnd_proto_cookie;
  xcb_get_property_cookie_t xdnd_proxy_cookie;
  xcb_get_property_reply_t *reply;
  xcb_generic_error_t *error;

  if (proxy_out)
    *proxy_out = None;

  if (proto_out)
    *proto_out = -1;

  if (proxy_out)
    xdnd_proxy_cookie = xcb_get_property (dpyinfo->xcb_connection, 0,
					  (xcb_window_t) wdesc,
					  (xcb_atom_t) dpyinfo->Xatom_XdndProxy,
					  XA_WINDOW, 0, 1);

  if (proto_out)
    xdnd_proto_cookie = xcb_get_property (dpyinfo->xcb_connection, 0,
					  (xcb_window_t) wdesc,
					  (xcb_atom_t) dpyinfo->Xatom_XdndAware,
					  XA_ATOM, 0, 1);

  if (proxy_out)
    {
      reply = xcb_get_property_reply (dpyinfo->xcb_connection,
				      xdnd_proxy_cookie, &error);

      if (!reply)
	free (error);
      else
	{
	  if (reply->format == 32
	      && reply->type == XA_WINDOW
	      && (xcb_get_property_value_length (reply) >= 4))
	    *proxy_out = *(xcb_window_t *) xcb_get_property_value (reply);

	  free (reply);
	}
    }

  if (proto_out)
    {
      reply = xcb_get_property_reply (dpyinfo->xcb_connection,
				      xdnd_proto_cookie, &error);

      if (!reply)
	free (error);
      else
	{
	  if (reply->format == 32
	      && reply->type == XA_ATOM
	      && (xcb_get_property_value_length (reply) >= 4))
	    *proto_out = (int) *(xcb_atom_t *) xcb_get_property_value (reply);

	  free (reply);
	}
    }
}
#endif

#ifdef HAVE_XSHAPE
static bool
x_dnd_get_target_window_2 (XRectangle *rects, int nrects,
			   int x, int y)
{
  int i;
  XRectangle *tem;

  for (i = 0; i < nrects; ++i)
    {
      tem = &rects[i];

      if (x >= tem->x && y >= tem->y
	  && x < tem->x + tem->width
	  && y < tem->y + tem->height)
	return true;
    }

  return false;
}
#endif

static Window
x_dnd_get_target_window_1 (struct x_display_info *dpyinfo,
			   int root_x, int root_y, int *motif_out,
			   bool *extents_p)
{
  struct x_client_list_window *tem, *chosen = NULL;

  /* Loop through x_dnd_toplevels until we find the toplevel where
     root_x and root_y are.  */

  *motif_out = XM_DRAG_STYLE_NONE;

  for (tem = x_dnd_toplevels; tem; tem = tem->next)
    {
      if (!tem->mapped_p || tem->wm_state != NormalState)
	continue;

      /* Test if the coordinates are inside the window's frame
	 extents, and return None in that case.  */

      *extents_p = true;
      if (root_x > tem->x - tem->frame_extents_left
	  && root_x < tem->x
	  && root_y > tem->y - tem->frame_extents_top
	  && root_y < (tem->y + tem->height - 1
		       + tem->frame_extents_bottom))
	return None;

      if (root_x > tem->x + tem->width
	  && root_x < (tem->x + tem->width - 1
		       + tem->frame_extents_right)
	  && root_y > tem->y - tem->frame_extents_top
	  && root_y < (tem->y + tem->height - 1
		       + tem->frame_extents_bottom))
	return None;

      if (root_y > tem->y - tem->frame_extents_top
	  && root_y < tem->y
	  && root_x > tem->x - tem->frame_extents_left
	  && root_x < (tem->x + tem->width - 1
		       + tem->frame_extents_right))
	return None;

      if (root_y > tem->y + tem->height
	  && root_y < (tem->y + tem->height - 1
		       + tem->frame_extents_bottom)
	  && root_x >= tem->x - tem->frame_extents_left
	  && root_x < (tem->x + tem->width - 1
		       + tem->frame_extents_right))
	return None;
      *extents_p = false;

      if (root_x >= tem->x && root_y >= tem->y
	  && root_x < tem->x + tem->width
	  && root_y < tem->y + tem->height)
	{
#ifdef HAVE_XSHAPE
	  if (tem->n_bounding_rects == -1)
#endif
	    {
	      chosen = tem;
	      break;
	    }

#ifdef HAVE_XSHAPE
	  if (x_dnd_get_target_window_2 (tem->bounding_rects,
					 tem->n_bounding_rects,
					 tem->border_width + root_x - tem->x,
					 tem->border_width + root_y - tem->y))
	    {
	      if (tem->n_input_rects == -1
		  || x_dnd_get_target_window_2 (tem->input_rects,
						tem->n_input_rects,
						(tem->border_width
						 + root_x - tem->x),
						(tem->border_width
						 + root_y - tem->y)))
		{
		  chosen = tem;
		  break;
		}
	    }
#endif
	}
    }

  if (chosen)
    {
      *motif_out = (x_dnd_disable_motif_protocol
		    ? XM_DRAG_STYLE_NONE
		    : chosen->xm_protocol_style);
      return chosen->window;
    }
  else
    *motif_out = XM_DRAG_STYLE_NONE;

  return None;
}

static int
x_dnd_get_wm_state_and_proto (struct x_display_info *dpyinfo,
			      Window window, int *wmstate_out,
			      int *proto_out, int *motif_out,
			      Window *proxy_out)
{
#ifndef USE_XCB
  Atom type;
  int format;
  unsigned long nitems, bytes_after;
  unsigned char *data = NULL;
  xm_drag_receiver_info xm_info;
#else
  xcb_get_property_cookie_t wmstate_cookie;
  xcb_get_property_cookie_t xdnd_proto_cookie;
  xcb_get_property_cookie_t xdnd_proxy_cookie;
  xcb_get_property_cookie_t xm_style_cookie;
  xcb_get_property_reply_t *reply;
  xcb_generic_error_t *error;
  uint8_t *xmdata;
#endif
  int rc;

#ifndef USE_XCB
  x_catch_errors (dpyinfo->display);
  rc = ((XGetWindowProperty (dpyinfo->display, window,
			     dpyinfo->Xatom_wm_state,
			     0, 2, False, AnyPropertyType,
			     &type, &format, &nitems,
			     &bytes_after, &data)
	 == Success)
	&& !x_had_errors_p (dpyinfo->display)
	&& data && nitems == 2 && format == 32);
  x_uncatch_errors ();

  if (rc)
    *wmstate_out = *(unsigned long *) data;

  *proto_out = x_dnd_get_window_proto (dpyinfo, window);

  if (!xm_read_drag_receiver_info (dpyinfo, window, &xm_info))
    *motif_out = xm_info.protocol_style;
  else
    *motif_out = XM_DRAG_STYLE_NONE;

  *proxy_out = x_dnd_get_window_proxy (dpyinfo, window);

  if (data)
    XFree (data);
#else
  rc = true;

  wmstate_cookie = xcb_get_property (dpyinfo->xcb_connection, 0,
				     (xcb_window_t) window,
				     (xcb_atom_t) dpyinfo->Xatom_wm_state,
				     0, 0, 2);
  xdnd_proto_cookie = xcb_get_property (dpyinfo->xcb_connection, 0,
					(xcb_window_t) window,
					(xcb_atom_t) dpyinfo->Xatom_XdndAware,
					XA_ATOM, 0, 1);
  xdnd_proxy_cookie = xcb_get_property (dpyinfo->xcb_connection, 0,
					(xcb_window_t) window,
					(xcb_atom_t) dpyinfo->Xatom_XdndProxy,
					XA_WINDOW, 0, 1);
  xm_style_cookie
    = xcb_get_property (dpyinfo->xcb_connection, 0,
			(xcb_window_t) window,
			(xcb_atom_t) dpyinfo->Xatom_MOTIF_DRAG_RECEIVER_INFO,
			(xcb_atom_t) dpyinfo->Xatom_MOTIF_DRAG_RECEIVER_INFO,
			0, 4);

  reply = xcb_get_property_reply (dpyinfo->xcb_connection,
				  wmstate_cookie, &error);

  if (!reply)
    free (error), rc = false;
  else
    {
      if (reply->format != 32
	  || xcb_get_property_value_length (reply) != 8)
	rc = false;
      else
	*wmstate_out = *(uint32_t *) xcb_get_property_value (reply);

      free (reply);
    }

  reply = xcb_get_property_reply (dpyinfo->xcb_connection,
				  xdnd_proto_cookie, &error);

  *proto_out = -1;
  if (!reply)
    free (error);
  else
    {
      if (reply->format == 32
	  && xcb_get_property_value_length (reply) >= 4)
	*proto_out = *(uint32_t *) xcb_get_property_value (reply);

      free (reply);
    }

  *proxy_out = None;
  reply = xcb_get_property_reply (dpyinfo->xcb_connection,
				  xdnd_proxy_cookie, &error);

  if (!reply)
    free (error);
  else
    {
      if (reply->format == 32
	  && reply->type == XA_WINDOW
	  && (xcb_get_property_value_length (reply) >= 4))
	*proxy_out = *(xcb_window_t *) xcb_get_property_value (reply);

      free (reply);
    }

  *motif_out = XM_DRAG_STYLE_NONE;

  reply = xcb_get_property_reply (dpyinfo->xcb_connection,
				  xm_style_cookie, &error);

  if (!reply)
    free (error);
 else
   {
     if (reply->format == 8
	 && reply->type == dpyinfo->Xatom_MOTIF_DRAG_RECEIVER_INFO
	 && xcb_get_property_value_length (reply) >= 4)
       {
	 xmdata = xcb_get_property_value (reply);
	 *motif_out = xmdata[2];
       }

     free (reply);
   }
#endif

  return rc;
}

/* From the XDND protocol specification:

   Dropping on windows that do not support XDND

   Since middle clicking is the universal shortcut for pasting
   in X, one can drop data into a window that does not support
   XDND by:

   1. After the mouse has been released to trigger the drop,
   obtain ownership of XA_PRIMARY.

   2. Send a ButtonPress event and then a ButtonRelease event to
   the deepest subwindow containing the mouse to simulate a
   middle click.  The times for these events should be the time
   of the actual button release +1 and +2, respectively.  These
   values will not be used by anybody else, so one can
   unambiguously recognize the resulting `XConvertSelection'
   request.

   3. If a request for XA_PRIMARY arrives bearing the timestamp
   of either the ButtonPress or the ButtonRelease event, treat
   it as a request for XdndSelection.  Note that you must use
   the X data types instead of the MIME types in this case.
   (e.g. XA_STRING instead of text/plain).  */
void
x_dnd_do_unsupported_drop (struct x_display_info *dpyinfo,
			   Lisp_Object frame, Lisp_Object value,
			   Lisp_Object targets, Window target_window,
			   int root_x, int root_y, Time before)
{
  XEvent event;
  int dest_x, dest_y;
  Window child_return, child, owner;
  Lisp_Object current_value;
  struct frame *f;

  f = decode_window_system_frame (frame);

  if (NILP (value))
    return;

  if (!x_dnd_use_unsupported_drop)
    return;

  event.xbutton.serial = 0;
  event.xbutton.send_event = True;
  event.xbutton.display = dpyinfo->display;
  event.xbutton.root = dpyinfo->root_window;
  event.xbutton.x_root = root_x;
  event.xbutton.y_root = root_y;

  x_catch_errors (dpyinfo->display);

  child = dpyinfo->root_window;
  dest_x = root_x;
  dest_y = root_y;

  while (XTranslateCoordinates (dpyinfo->display, dpyinfo->root_window,
				child, root_x, root_y, &dest_x, &dest_y,
				&child_return)
	 && child_return != None)
    child = child_return;

  x_uncatch_errors ();

  if (!CONSP (value))
    return;

  current_value = assq_no_quit (QPRIMARY,
				dpyinfo->terminal->Vselection_alist);

  if (!NILP (current_value))
    current_value = XCAR (XCDR (current_value));

  x_own_selection (QPRIMARY, current_value, frame,
		   XCAR (XCDR (value)), before);

  owner = XGetSelectionOwner (dpyinfo->display, XA_PRIMARY);

  /* If we didn't successfully obtain selection ownership, refrain
     from generating events that will insert something else.  */

  if (owner != FRAME_X_WINDOW (f))
    return;

  /* mouse-drag-and-drop-region will immediately deactivate the mark
     after this is set.  Make sure the primary selection is not
     clobbered in that case by setting `deactivate-mark' to
     Qdont_save.  */
  Vdeactivate_mark = Qdont_save;

  event.xbutton.window = child;
  event.xbutton.subwindow = None;
  event.xbutton.x = dest_x;
  event.xbutton.y = dest_y;
  event.xbutton.state = 0;
  event.xbutton.button = 2;
  event.xbutton.same_screen = True;

  dpyinfo->pending_dnd_time = before;

  event.xbutton.type = ButtonPress;
  event.xbutton.time = before + 1;

  x_ignore_errors_for_next_request (dpyinfo, 0);
  XSendEvent (dpyinfo->display, child,
	      True, ButtonPressMask, &event);

  event.xbutton.type = ButtonRelease;
  event.xbutton.time = before + 2;

  XSendEvent (dpyinfo->display, child,
	      True, ButtonReleaseMask, &event);
  x_stop_ignoring_errors (dpyinfo);

  x_dnd_action_symbol = QXdndActionPrivate;

  return;
}

static void
x_dnd_send_unsupported_drop (struct x_display_info *dpyinfo, Window target_window,
			     int root_x, int root_y, Time before)
{
  Lisp_Object targets, arg;
  int i;
  char **atom_names, *name;

  targets = Qnil;
  atom_names = alloca (sizeof *atom_names * x_dnd_n_targets);

  if (!XGetAtomNames (dpyinfo->display, x_dnd_targets,
		      x_dnd_n_targets, atom_names))
      return;

  for (i = x_dnd_n_targets; i > 0; --i)
    {
      targets = Fcons (build_string (atom_names[i - 1]),
		       targets);
      XFree (atom_names[i - 1]);
    }

  name = x_get_atom_name (dpyinfo, x_dnd_wanted_action,
			  NULL);

  if (name)
    {
      arg = intern (name);
      xfree (name);
    }
  else
    arg = Qnil;

  x_dnd_run_unsupported_drop_function = true;
  x_dnd_unsupported_drop_time = before;
  x_dnd_unsupported_drop_window = target_window;
  x_dnd_unsupported_drop_data
    = listn (5, assq_no_quit (QXdndSelection,
			      dpyinfo->terminal->Vselection_alist),
	     targets, arg, make_fixnum (root_x),
	     make_fixnum (root_y));

  x_dnd_waiting_for_finish = true;
  x_dnd_finish_display = dpyinfo->display;
}

static Window
x_dnd_fill_empty_target (int *proto_out, int *motif_out,
			 Window *toplevel_out, bool *was_frame)
{
  *proto_out = -1;
  *motif_out = XM_DRAG_STYLE_NONE;
  *toplevel_out = None;
  *was_frame = false;

  return None;
}

static Window
x_dnd_get_target_window (struct x_display_info *dpyinfo,
			 int root_x, int root_y, int *proto_out,
			 int *motif_out, Window *toplevel_out,
			 bool *was_frame)
{
  Window child_return, child, proxy;
  int dest_x_return, dest_y_return, rc, proto, motif;
  int parent_x, parent_y;
  bool extents_p;
#if defined HAVE_XCOMPOSITE && (XCOMPOSITE_MAJOR > 0 || XCOMPOSITE_MINOR > 2)
  Window overlay_window;
  XWindowAttributes attrs;
#endif
  int wmstate;
  struct frame *tooltip, *f;
  bool unrelated;

  child_return = dpyinfo->root_window;
  dest_x_return = root_x;
  dest_y_return = root_y;

  proto = -1;
  *motif_out = XM_DRAG_STYLE_NONE;
  *toplevel_out = None;
  *was_frame = false;

  if (x_dnd_use_toplevels)
    {
      extents_p = false;
      child = x_dnd_get_target_window_1 (dpyinfo, root_x,
					 root_y, motif_out,
					 &extents_p);

      if (!x_dnd_allow_current_frame
	  && FRAME_X_WINDOW (x_dnd_frame) == child)
	*motif_out = XM_DRAG_STYLE_NONE;

      f = x_top_window_to_frame (dpyinfo, child);

      *toplevel_out = child;

      if (child != None)
	{
	  if (f)
	    {
	      *was_frame = true;
	      *proto_out = -1;
	      *motif_out = XM_DRAG_STYLE_NONE;

	      return child;
	    }

#ifndef USE_XCB
	  proxy = x_dnd_get_window_proxy (dpyinfo, child);
#else
	  x_dnd_get_proxy_proto (dpyinfo, child, &proxy, proto_out);
#endif

	  if (proxy != None)
	    {
	      proto = x_dnd_get_window_proto (dpyinfo, proxy);

	      if (proto != -1)
		{
		  *proto_out = proto;
		  return proxy;
		}
	    }

#ifndef USE_XCB
	  *proto_out = x_dnd_get_window_proto (dpyinfo, child);
#endif
	  return child;
	}

      if (extents_p)
	{
	  *proto_out = -1;
	  *motif_out = XM_DRAG_STYLE_NONE;
	  *toplevel_out = None;

	  return None;
	}

      /* Then look at the composite overlay window.  */
#if defined HAVE_XCOMPOSITE && (XCOMPOSITE_MAJOR > 0 || XCOMPOSITE_MINOR > 2)
      if (dpyinfo->composite_supported_p
	  && (dpyinfo->composite_major > 0
	      || dpyinfo->composite_minor > 2))
	{
	  if (XGetSelectionOwner (dpyinfo->display,
				  dpyinfo->Xatom_NET_WM_CM_Sn) != None)
	    {
	      x_catch_errors (dpyinfo->display);
	      XGrabServer (dpyinfo->display);
	      overlay_window = XCompositeGetOverlayWindow (dpyinfo->display,
							   dpyinfo->root_window);
	      XCompositeReleaseOverlayWindow (dpyinfo->display,
					      dpyinfo->root_window);
	      XUngrabServer (dpyinfo->display);

	      if (!x_had_errors_p (dpyinfo->display))
		{
		  XGetWindowAttributes (dpyinfo->display, overlay_window, &attrs);

		  if (attrs.map_state == IsViewable)
		    {
		      proxy = x_dnd_get_window_proxy (dpyinfo, overlay_window);

		      if (proxy != None)
			{
			  proto = x_dnd_get_window_proto (dpyinfo, proxy);

			  if (proto != -1)
			    {
			      *proto_out = proto;
			      *toplevel_out = overlay_window;
			      x_uncatch_errors_after_check ();

			      return proxy;
			    }
			}
		    }
		}
	      x_uncatch_errors_after_check ();
	    }
	}
#endif

      /* Now look for an XdndProxy on the root window.  */

      proxy = x_dnd_get_window_proxy (dpyinfo, dpyinfo->root_window);

      if (proxy != None)
	{
	  proto = x_dnd_get_window_proto (dpyinfo, dpyinfo->root_window);

	  if (proto != -1)
	    {
	      *toplevel_out = dpyinfo->root_window;
	      *proto_out = proto;
	      return proxy;
	    }
	}

      /* No toplevel was found and the overlay and root windows were
	 not proxies, so return None.  */
      *proto_out = -1;
      *toplevel_out = dpyinfo->root_window;
      return None;
    }

  /* Not strictly necessary, but satisfies GCC.  */
  child = dpyinfo->root_window;

  while (child_return != None)
    {
      child = child_return;
      parent_x = dest_x_return;
      parent_y = dest_y_return;

      x_catch_errors (dpyinfo->display);
      rc = XTranslateCoordinates (dpyinfo->display, dpyinfo->root_window,
				  child_return, root_x, root_y, &dest_x_return,
				  &dest_y_return, &child_return);

      if (x_had_errors_p (dpyinfo->display) || !rc)
	{
	  x_uncatch_errors_after_check ();
	  break;
	}

      if (child_return)
	{
	  /* If child_return is a tooltip frame, look beneath it.  We
	     never want to drop anything onto a tooltip frame.  */

	  tooltip = x_tooltip_window_to_frame (dpyinfo, child_return,
					       &unrelated);

	  if (tooltip || unrelated)
	    child_return = x_get_window_below (dpyinfo->display, child_return,
					       parent_x, parent_y, &dest_x_return,
					       &dest_y_return);

	  if (!child_return)
	    {
	      x_uncatch_errors ();
	      break;
	    }

	  f = x_top_window_to_frame (dpyinfo, child_return);

	  if (f)
	    {
	      *proto_out = -1;
	      *motif_out = XM_DRAG_STYLE_NONE;
	      *toplevel_out = child_return;
	      *was_frame = true;

	      return child_return;
	    }

	  if (x_dnd_get_wm_state_and_proto (dpyinfo, child_return,
					    &wmstate, &proto, &motif,
					    &proxy)
	      /* `proto' and `motif' are set by x_dnd_get_wm_state
		 even if getting the wm state failed.  */
	      || proto != -1 || motif != XM_DRAG_STYLE_NONE)
	    {
	      *proto_out = proto;
	      *motif_out = (x_dnd_disable_motif_protocol
			    ? XM_DRAG_STYLE_NONE : motif);
	      *toplevel_out = child_return;
	      x_uncatch_errors ();

	      return child_return;
	    }

	  if (proxy != None)
	    {
	      proto = x_dnd_get_window_proto (dpyinfo, proxy);

	      if (proto != -1)
		{
		  *proto_out = proto;
		  *toplevel_out = child_return;

		  x_uncatch_errors ();
		  return proxy;
		}
	    }
	}

      x_uncatch_errors ();
    }

#if defined HAVE_XCOMPOSITE && (XCOMPOSITE_MAJOR > 0 || XCOMPOSITE_MINOR > 2)
  if (child != dpyinfo->root_window)
    {
#endif
      if (child != None)
	{
	  proxy = x_dnd_get_window_proxy (dpyinfo, child);

	  if (proxy)
	    {
	      proto = x_dnd_get_window_proto (dpyinfo, proxy);

	      if (proto != -1)
		{
		  *proto_out = proto;
		  *toplevel_out = child;
		  return proxy;
		}
	    }
	}

      *proto_out = x_dnd_get_window_proto (dpyinfo, child);
      return child;
#if defined HAVE_XCOMPOSITE && (XCOMPOSITE_MAJOR > 0 || XCOMPOSITE_MINOR > 2)
    }
  else if (dpyinfo->composite_supported_p
	   && (dpyinfo->composite_major > 0
	       || dpyinfo->composite_minor > 2))
    {
      /* Only do this if a compositing manager is present.  */
      if (XGetSelectionOwner (dpyinfo->display,
			      dpyinfo->Xatom_NET_WM_CM_Sn) != None)
	{
	  x_catch_errors (dpyinfo->display);
	  XGrabServer (dpyinfo->display);
	  overlay_window = XCompositeGetOverlayWindow (dpyinfo->display,
						       dpyinfo->root_window);
	  XCompositeReleaseOverlayWindow (dpyinfo->display,
					  dpyinfo->root_window);
	  XUngrabServer (dpyinfo->display);

	  if (!x_had_errors_p (dpyinfo->display))
	    {
	      XGetWindowAttributes (dpyinfo->display, overlay_window, &attrs);

	      if (attrs.map_state == IsViewable)
		{
		  proxy = x_dnd_get_window_proxy (dpyinfo, overlay_window);

		  if (proxy != None)
		    {
		      proto = x_dnd_get_window_proto (dpyinfo, proxy);

		      if (proto != -1)
			{
			  *proto_out = proto;
			  *toplevel_out = overlay_window;
			  x_uncatch_errors_after_check ();

			  return proxy;
			}
		    }
		}
	    }
	  x_uncatch_errors_after_check ();
	}
    }

  if (child != None)
    {
      proxy = x_dnd_get_window_proxy (dpyinfo, child);

      if (proxy)
	{
	  proto = x_dnd_get_window_proto (dpyinfo, proxy);

	  if (proto != -1)
	    {
	      *toplevel_out = child;
	      *proto_out = proto;
	      return proxy;
	    }
	}
    }

  *proto_out = x_dnd_get_window_proto (dpyinfo, child);
  *toplevel_out = child;
  return child;
#endif
}

static Window
x_dnd_get_window_proxy (struct x_display_info *dpyinfo, Window wdesc)
{
  int rc, actual_format;
  unsigned long actual_size, bytes_remaining;
  unsigned char *tmp_data = NULL;
  XWindowAttributes attrs;
  Atom actual_type;
  Window proxy;

  proxy = None;
  x_catch_errors (dpyinfo->display);
  rc = XGetWindowProperty (dpyinfo->display, wdesc,
			   dpyinfo->Xatom_XdndProxy,
			   0, 1, False, XA_WINDOW,
			   &actual_type, &actual_format,
			   &actual_size, &bytes_remaining,
			   &tmp_data);

  if (!x_had_errors_p (dpyinfo->display)
      && rc == Success
      && tmp_data
      && actual_type == XA_WINDOW
      && actual_format == 32
      && actual_size == 1)
    {
      proxy = *(Window *) tmp_data;

      /* Verify the proxy window exists.  */
      XGetWindowAttributes (dpyinfo->display, proxy, &attrs);

      if (x_had_errors_p (dpyinfo->display))
	proxy = None;
    }

  if (tmp_data)
    XFree (tmp_data);
  x_uncatch_errors_after_check ();

  return proxy;
}

static int
x_dnd_get_window_proto (struct x_display_info *dpyinfo, Window wdesc)
{
  Atom actual, value;
  unsigned char *tmp_data = NULL;
  int rc, format;
  unsigned long n, left;
  bool had_errors;

  if (wdesc == None || (!x_dnd_allow_current_frame
			&& wdesc == FRAME_OUTER_WINDOW (x_dnd_frame)))
    return -1;

  x_catch_errors (dpyinfo->display);
  rc = XGetWindowProperty (dpyinfo->display, wdesc, dpyinfo->Xatom_XdndAware,
			   0, 1, False, XA_ATOM, &actual, &format, &n, &left,
			   &tmp_data);
  had_errors = x_had_errors_p (dpyinfo->display);
  x_uncatch_errors_after_check ();

  if (had_errors || rc != Success || actual != XA_ATOM || format != 32 || n < 1
      || !tmp_data)
    {
      if (tmp_data)
	XFree (tmp_data);
      return -1;
    }

  value = (int) *(Atom *) tmp_data;
  XFree (tmp_data);

  return min (X_DND_SUPPORTED_VERSION, (int) value);
}

static void
x_dnd_send_enter (struct frame *f, Window target, Window toplevel,
		  int supported)
{
  struct x_display_info *dpyinfo = FRAME_DISPLAY_INFO (f);
  int i;
  XEvent msg;

  msg.xclient.type = ClientMessage;
  msg.xclient.message_type = dpyinfo->Xatom_XdndEnter;
  msg.xclient.format = 32;
  msg.xclient.window = toplevel;
  msg.xclient.data.l[0] = FRAME_X_WINDOW (f);
  msg.xclient.data.l[1] = (((unsigned int) min (X_DND_SUPPORTED_VERSION,
						supported) << 24)
			   | (x_dnd_n_targets > 3 ? 1 : 0));
  msg.xclient.data.l[2] = 0;
  msg.xclient.data.l[3] = 0;
  msg.xclient.data.l[4] = 0;

  for (i = 0; i < min (3, x_dnd_n_targets); ++i)
    msg.xclient.data.l[i + 2] = x_dnd_targets[i];

  if (x_dnd_n_targets > 3 && !x_dnd_init_type_lists)
    XChangeProperty (FRAME_X_DISPLAY (f), FRAME_X_WINDOW (f),
		     dpyinfo->Xatom_XdndTypeList, XA_ATOM, 32,
		     PropModeReplace, (unsigned char *) x_dnd_targets,
		     x_dnd_n_targets);

  /* Now record that the type list has already been set (if required),
     so we don't have to set it again.  */
  x_dnd_init_type_lists = true;

  x_ignore_errors_for_next_request (dpyinfo, 0);
  XSendEvent (FRAME_X_DISPLAY (f), target, False, NoEventMask, &msg);
  x_stop_ignoring_errors (dpyinfo);
}

static void
x_dnd_send_position (struct frame *f, Window target, Window toplevel,
		     int supported, unsigned short root_x,
		     unsigned short root_y, Time timestamp, Atom action,
		     int button, unsigned state)
{
  struct x_display_info *dpyinfo = FRAME_DISPLAY_INFO (f);
  XEvent msg;

  msg.xclient.type = ClientMessage;
  msg.xclient.message_type = dpyinfo->Xatom_XdndPosition;
  msg.xclient.format = 32;
  msg.xclient.window = toplevel;
  msg.xclient.data.l[0] = FRAME_X_WINDOW (f);
  msg.xclient.data.l[1] = 0;

  /* This is problematic because it's not specified in the
     freedesktop.org copy of the protocol specification, but the copy
     maintained by the original author of the protocol specifies it
     for all versions.  Since at least one program supports these
     flags, but uses protocol v4 (and not v5), set them for all
     protocol versions.  */
  if (button >= 4 && button <= 7)
    {
      msg.xclient.data.l[1] |= (1 << 10);
      msg.xclient.data.l[1] |= (button - 4) << 8;
    }
  else if (button)
    return;

  msg.xclient.data.l[1] |= state & 0xff;

  msg.xclient.data.l[2] = (root_x << 16) | root_y;
  msg.xclient.data.l[3] = 0;
  msg.xclient.data.l[4] = 0;

  if (supported >= 3)
    msg.xclient.data.l[3] = timestamp;

  if (supported >= 4)
    msg.xclient.data.l[4] = action;

  if (x_dnd_waiting_for_status_window == target)
    {
      x_dnd_pending_send_position = msg;
      x_dnd_pending_send_position_button = button;
      x_dnd_pending_send_position_root_x = root_x;
      x_dnd_pending_send_position_root_y = root_y;
    }
  else
    {
      if (target == x_dnd_mouse_rect_target
	  && x_dnd_mouse_rect.width
	  && x_dnd_mouse_rect.height
	  /* Ignore the mouse rectangle if we're supposed to be sending a
	     button press instead.  */
	  && !button)
	{
	  if (root_x >= x_dnd_mouse_rect.x
	      && root_x < (x_dnd_mouse_rect.x
			   + x_dnd_mouse_rect.width)
	      && root_y >= x_dnd_mouse_rect.y
	      && root_y < (x_dnd_mouse_rect.y
			   + x_dnd_mouse_rect.height))
	    return;
	}

      x_ignore_errors_for_next_request (dpyinfo, 0);
      XSendEvent (FRAME_X_DISPLAY (f), target, False, NoEventMask, &msg);
      x_stop_ignoring_errors (dpyinfo);

      x_dnd_waiting_for_status_window = target;
    }
}

static void
x_dnd_send_leave (struct frame *f, Window target, Window toplevel)
{
  struct x_display_info *dpyinfo = FRAME_DISPLAY_INFO (f);
  XEvent msg;

  msg.xclient.type = ClientMessage;
  msg.xclient.message_type = dpyinfo->Xatom_XdndLeave;
  msg.xclient.format = 32;
  msg.xclient.window = toplevel;
  msg.xclient.data.l[0] = FRAME_X_WINDOW (f);
  msg.xclient.data.l[1] = 0;
  msg.xclient.data.l[2] = 0;
  msg.xclient.data.l[3] = 0;
  msg.xclient.data.l[4] = 0;

  x_dnd_waiting_for_status_window = None;
  x_dnd_pending_send_position.type = 0;

  x_ignore_errors_for_next_request (dpyinfo, 0);
  XSendEvent (FRAME_X_DISPLAY (f), target, False, NoEventMask, &msg);
  x_stop_ignoring_errors (dpyinfo);
}

static bool
x_dnd_send_drop (struct frame *f, Window target, Window toplevel,
		 Time timestamp, int supported)
{
  struct x_display_info *dpyinfo;
  XEvent msg;

  if (x_dnd_action == None)
    {
      x_dnd_send_leave (f, target, toplevel);
      return false;
    }

  dpyinfo = FRAME_DISPLAY_INFO (f);

  msg.xclient.type = ClientMessage;
  msg.xclient.message_type = dpyinfo->Xatom_XdndDrop;
  msg.xclient.format = 32;
  msg.xclient.window = toplevel;
  msg.xclient.data.l[0] = FRAME_X_WINDOW (f);
  msg.xclient.data.l[1] = 0;
  msg.xclient.data.l[2] = 0;
  msg.xclient.data.l[3] = 0;
  msg.xclient.data.l[4] = 0;

  if (supported >= 1)
    msg.xclient.data.l[2] = timestamp;

  x_ignore_errors_for_next_request (dpyinfo, 0);
  XSendEvent (FRAME_X_DISPLAY (f), target, False, NoEventMask, &msg);
  x_stop_ignoring_errors (dpyinfo);
  return true;
}

static bool
x_dnd_do_drop (Window target, Window toplevel, int supported)
{
  if (x_dnd_waiting_for_status_window != target)
    return x_dnd_send_drop (x_dnd_frame, target, toplevel,
			    x_dnd_selection_timestamp, supported);

  x_dnd_need_send_drop = true;
  x_dnd_send_drop_proto = supported;

  return true;
}

static void
x_set_dnd_targets (Atom *targets, int ntargets)
{
  if (x_dnd_targets)
    xfree (x_dnd_targets);

  block_input ();
  x_dnd_targets = xmalloc (sizeof *targets * ntargets);
  x_dnd_n_targets = ntargets;

  memcpy (x_dnd_targets, targets,
	  sizeof *targets * ntargets);
  unblock_input ();
}

static void
x_free_dnd_targets (void)
{
  if (!x_dnd_targets)
    return;

  xfree (x_dnd_targets);
  x_dnd_targets = NULL;
  x_dnd_n_targets = 0;
}

/* Clear some Lisp variables after the drop finishes, so they are
   freed by the GC.  */

static void
x_clear_dnd_variables (void)
{
  x_dnd_monitors = Qnil;
  x_dnd_unsupported_drop_data = Qnil;
}

static void
x_free_dnd_toplevels (void)
{
  if (!x_dnd_use_toplevels || !x_dnd_toplevels)
    return;

  /* If the display is deleted, x_dnd_toplevels will already be
     NULL, so we can always assume the display is alive here.  */

  x_dnd_free_toplevels (true);
}

/* Restore event masks and window properties changed during a
   drag-and-drop operation, after it finishes.  */
static void
x_restore_events_after_dnd (struct frame *f, XWindowAttributes *wa)
{
  struct x_display_info *dpyinfo;

  dpyinfo = FRAME_DISPLAY_INFO (f);

  /* Restore the old event mask.  */
  XSelectInput (dpyinfo->display, dpyinfo->root_window,
		wa->your_event_mask);
#ifdef HAVE_XKB
  if (dpyinfo->supports_xkb)
    XkbSelectEvents (dpyinfo->display, XkbUseCoreKbd,
		     XkbStateNotifyMask, 0);
#endif
  /* Delete the Motif drag initiator info if it was set up.  */
  if (x_dnd_motif_setup_p)
    XDeleteProperty (dpyinfo->display, FRAME_X_WINDOW (f),
		     x_dnd_motif_atom);

  /* Remove any type list set as well.  */
  if (x_dnd_init_type_lists && x_dnd_n_targets > 3)
    XDeleteProperty (dpyinfo->display, FRAME_X_WINDOW (f),
		     dpyinfo->Xatom_XdndTypeList);
}

#ifdef HAVE_XINPUT2

/* Cancel the current drag-and-drop operation, sending leave messages
   to any relevant toplevels.  This is called from the event loop when
   an event is received telling Emacs to gracefully cancel the
   drag-and-drop operation.  */

static void
x_dnd_cancel_dnd_early (void)
{
  struct frame *f;
  xm_drop_start_message dmsg;

  eassert (x_dnd_frame && x_dnd_in_progress);

  f = x_dnd_frame;

  if (x_dnd_last_seen_window != None
      && x_dnd_last_protocol_version != -1)
    x_dnd_send_leave (x_dnd_frame,
		      x_dnd_last_seen_window,
		      x_dnd_last_seen_toplevel);
  else if (x_dnd_last_seen_window != None
	   && !XM_DRAG_STYLE_IS_DROP_ONLY (x_dnd_last_motif_style)
	   && x_dnd_last_motif_style != XM_DRAG_STYLE_NONE
	   && x_dnd_motif_setup_p)
    {
      dmsg.reason = XM_DRAG_REASON (XM_DRAG_ORIGINATOR_INITIATOR,
				    XM_DRAG_REASON_DROP_START);
      dmsg.byte_order = XM_BYTE_ORDER_CUR_FIRST;
      dmsg.timestamp = FRAME_DISPLAY_INFO (f)->last_user_time;
      dmsg.side_effects
	= XM_DRAG_SIDE_EFFECT (xm_side_effect_from_action (FRAME_DISPLAY_INFO (f),
							   x_dnd_wanted_action),
			       XM_DROP_SITE_VALID, x_dnd_motif_operations,
			       XM_DROP_ACTION_DROP_CANCEL);
      dmsg.x = 0;
      dmsg.y = 0;
      dmsg.index_atom = x_dnd_motif_atom;
      dmsg.source_window = FRAME_X_WINDOW (f);

      x_dnd_send_xm_leave_for_drop (FRAME_DISPLAY_INFO (f), f,
				    x_dnd_last_seen_window,
				    FRAME_DISPLAY_INFO (f)->last_user_time);
      xm_send_drop_message (FRAME_DISPLAY_INFO (f), FRAME_X_WINDOW (f),
			    x_dnd_last_seen_window, &dmsg);
    }

  x_dnd_last_seen_window = None;
  x_dnd_last_seen_toplevel = None;
  x_dnd_in_progress = false;
  x_dnd_waiting_for_finish = false;
  x_dnd_return_frame_object = NULL;
  x_dnd_movement_frame = NULL;
  x_dnd_wheel_frame = NULL;
  x_dnd_frame = NULL;
  x_dnd_action = None;
  x_dnd_action_symbol = Qnil;
}

#endif

static void
x_dnd_cleanup_drag_and_drop (void *frame)
{
  struct frame *f = frame;
  xm_drop_start_message dmsg;

  if (!x_dnd_unwind_flag)
    return;

  if (x_dnd_in_progress)
    {
      eassert (x_dnd_frame);

      block_input ();
      if (x_dnd_last_seen_window != None
	  && x_dnd_last_protocol_version != -1)
	x_dnd_send_leave (x_dnd_frame,
			  x_dnd_last_seen_window,
			  x_dnd_last_seen_toplevel);
      else if (x_dnd_last_seen_window != None
	       && !XM_DRAG_STYLE_IS_DROP_ONLY (x_dnd_last_motif_style)
	       && x_dnd_last_motif_style != XM_DRAG_STYLE_NONE
	       && x_dnd_motif_setup_p)
	{
	  dmsg.reason = XM_DRAG_REASON (XM_DRAG_ORIGINATOR_INITIATOR,
					XM_DRAG_REASON_DROP_START);
	  dmsg.byte_order = XM_BYTE_ORDER_CUR_FIRST;
	  dmsg.timestamp = FRAME_DISPLAY_INFO (f)->last_user_time;
	  dmsg.side_effects
	    = XM_DRAG_SIDE_EFFECT (xm_side_effect_from_action (FRAME_DISPLAY_INFO (f),
							       x_dnd_wanted_action),
				   XM_DROP_SITE_VALID, x_dnd_motif_operations,
				   XM_DROP_ACTION_DROP_CANCEL);
	  dmsg.x = 0;
	  dmsg.y = 0;
	  dmsg.index_atom = x_dnd_motif_atom;
	  dmsg.source_window = FRAME_X_WINDOW (f);

	  x_dnd_send_xm_leave_for_drop (FRAME_DISPLAY_INFO (f), f,
					x_dnd_last_seen_window,
					FRAME_DISPLAY_INFO (f)->last_user_time);
	  xm_send_drop_message (FRAME_DISPLAY_INFO (f), FRAME_X_WINDOW (f),
				x_dnd_last_seen_window, &dmsg);
	}
      unblock_input ();

      x_dnd_end_window = x_dnd_last_seen_window;
      x_dnd_last_seen_window = None;
      x_dnd_last_seen_toplevel = None;
      x_dnd_in_progress = false;
    }

  x_dnd_waiting_for_finish = false;

  FRAME_DISPLAY_INFO (f)->grabbed = 0;
#ifdef USE_GTK
  current_hold_quit = NULL;
#endif
  x_dnd_return_frame_object = NULL;
  x_dnd_movement_frame = NULL;
  x_dnd_wheel_frame = NULL;
  x_dnd_frame = NULL;

  x_restore_events_after_dnd (f, &x_dnd_old_window_attrs);
}

\f

/* Primitives for simplified drag-and-drop tracking when items are
   being dragged between frames comprising the same Emacs session.  */

static void
x_dnd_note_self_position (struct x_display_info *dpyinfo, Window target,
			  unsigned short root_x, unsigned short root_y)
{
  struct frame *f;
  int dest_x, dest_y;

  f = x_top_window_to_frame (dpyinfo, target);

  if (f)
    {
      x_translate_coordinates (f, root_x, root_y, &dest_x, &dest_y);

      x_dnd_movement_frame = f;
      x_dnd_movement_x = dest_x;
      x_dnd_movement_y = dest_y;

      return;
    }
}

static void
x_dnd_note_self_wheel (struct x_display_info *dpyinfo, Window target,
		       unsigned short root_x, unsigned short root_y,
		       int button, unsigned int state, Time time)
{
  struct frame *f;
  int dest_x, dest_y;

  if (button < 4 || button > 7)
    return;

  f = x_top_window_to_frame (dpyinfo, target);

  if (f)
    {
      x_translate_coordinates (f, root_x, root_y, &dest_x, &dest_y);

      x_dnd_wheel_frame = f;
      x_dnd_wheel_x = dest_x;
      x_dnd_wheel_y = dest_y;
      x_dnd_wheel_button = button;
      x_dnd_wheel_state = state;
      x_dnd_wheel_time = time;

      return;
    }
}

static void
x_dnd_note_self_drop (struct x_display_info *dpyinfo, Window target,
		      unsigned short root_x, unsigned short root_y,
		      Time timestamp)
{
  struct input_event ie;
  struct frame *f;
  Lisp_Object lval;
  char **atom_names;
  char *name;
  int win_x, win_y, i;

  if (!x_dnd_allow_current_frame
      && (FRAME_OUTER_WINDOW (x_dnd_frame)
	  == target))
    return;

  f = x_top_window_to_frame (dpyinfo, target);

  if (!f)
    return;

  if (NILP (Vx_dnd_native_test_function))
    return;

  x_translate_coordinates (f, root_x, root_y, &win_x, &win_y);

  /* Emacs can't respond to DND events inside the nested event loop,
     so when dragging items to itself, call the test function
     manually.  */

  XSETFRAME (lval, f);
  x_dnd_action = None;
  x_dnd_action_symbol
    = safe_calln (Vx_dnd_native_test_function,
		  Fposn_at_x_y (make_fixnum (win_x),
				make_fixnum (win_y),
				lval, Qnil),
		  x_atom_to_symbol (dpyinfo,
				    x_dnd_wanted_action));

  if (!SYMBOLP (x_dnd_action_symbol))
    return;

  EVENT_INIT (ie);

  ie.kind = DRAG_N_DROP_EVENT;
  XSETFRAME (ie.frame_or_window, f);

  lval = Qnil;
  atom_names = alloca (x_dnd_n_targets * sizeof *atom_names);
  name = x_get_atom_name (dpyinfo, x_dnd_wanted_action, NULL);

  if (!XGetAtomNames (dpyinfo->display, x_dnd_targets,
		      x_dnd_n_targets, atom_names))
    {
      xfree (name);
      return;
    }

  for (i = x_dnd_n_targets; i != 0; --i)
    {
      lval = Fcons (intern (atom_names[i - 1]), lval);
      XFree (atom_names[i - 1]);
    }

  lval = Fcons (assq_no_quit (QXdndSelection,
			      FRAME_TERMINAL (f)->Vselection_alist),
		lval);
  lval = Fcons (intern (name), lval);
  lval = Fcons (QXdndSelection, lval);
  ie.arg = lval;
  ie.timestamp = timestamp;

  XSETINT (ie.x, win_x);
  XSETINT (ie.y, win_y);

  xfree (name);
  kbd_buffer_store_event (&ie);
}

\f

/* Miscellaneous X event and graphics extension functions.  */

/* Flush display of frame F.  */

static void
x_flush (struct frame *f)
{
  eassert (f && FRAME_X_P (f));
  /* Don't call XFlush when it is not safe to redisplay; the X
     connection may be broken.  */
  if (!NILP (Vinhibit_redisplay))
    return;

  block_input ();
  XFlush (FRAME_X_DISPLAY (f));
  unblock_input ();
}

#ifdef HAVE_XDBE
static void
x_drop_xrender_surfaces (struct frame *f)
{
  font_drop_xrender_surfaces (f);

#ifdef HAVE_XRENDER
  if (f && FRAME_X_DOUBLE_BUFFERED_P (f)
      && FRAME_X_PICTURE (f) != None)
    {
      XRenderFreePicture (FRAME_X_DISPLAY (f),
			  FRAME_X_PICTURE (f));
      FRAME_X_PICTURE (f) = None;
    }
#endif
}
#endif

#ifdef HAVE_XRENDER
void
x_xr_ensure_picture (struct frame *f)
{
  if (FRAME_X_PICTURE (f) == None && FRAME_X_PICTURE_FORMAT (f))
    {
      XRenderPictureAttributes attrs;
      attrs.clip_mask = None;
      XRenderPictFormat *fmt = FRAME_X_PICTURE_FORMAT (f);

      FRAME_X_PICTURE (f) = XRenderCreatePicture (FRAME_X_DISPLAY (f),
						  FRAME_X_RAW_DRAWABLE (f),
						  fmt, CPClipMask, &attrs);
    }
}
#endif

\f
/***********************************************************************
			      Debugging
 ***********************************************************************/

#if false

/* This is a function useful for recording debugging information about
   the sequence of occurrences in this file.  */

struct record
{
  char *locus;
  int type;
};

struct record event_record[100];

int event_record_index;

void
record_event (char *locus, int type)
{
  if (event_record_index == ARRAYELTS (event_record))
    event_record_index = 0;

  event_record[event_record_index].locus = locus;
  event_record[event_record_index].type = type;
  event_record_index++;
}

#endif

\f

/* Miscellaneous event handling functions.  */

static void
x_toolkit_position (struct frame *f, int x, int y,
		    bool *menu_bar_p, bool *tool_bar_p)
{
#ifdef USE_GTK
  GdkRectangle test_rect;
  int scale;

  y += (FRAME_MENUBAR_HEIGHT (f)
	+ FRAME_TOOLBAR_TOP_HEIGHT (f));
  x += FRAME_TOOLBAR_LEFT_WIDTH (f);

  if (FRAME_EXTERNAL_MENU_BAR (f))
    *menu_bar_p = (x >= 0 && x < FRAME_PIXEL_WIDTH (f)
		   && y >= 0 && y < FRAME_MENUBAR_HEIGHT (f));

  if (FRAME_X_OUTPUT (f)->toolbar_widget)
    {
      scale = xg_get_scale (f);
      test_rect.x = x / scale;
      test_rect.y = y / scale;
      test_rect.width = 1;
      test_rect.height = 1;

      *tool_bar_p = gtk_widget_intersect (FRAME_X_OUTPUT (f)->toolbar_widget,
					  &test_rect, NULL);
    }
#elif defined USE_X_TOOLKIT
  *menu_bar_p = (x > 0 && x < FRAME_PIXEL_WIDTH (f)
		 && (y < 0 && y >= -FRAME_MENUBAR_HEIGHT (f)));
#else
  *menu_bar_p = (WINDOWP (f->menu_bar_window)
		 && (x > 0 && x < FRAME_PIXEL_WIDTH (f)
		     && (y > 0 && y < FRAME_MENU_BAR_HEIGHT (f))));
#endif
}

static void
x_update_opaque_region (struct frame *f, XEvent *configure)
{
  unsigned long opaque_region[] = {0, 0,
				   (configure
				    ? configure->xconfigure.width
				    : FRAME_PIXEL_WIDTH (f)),
				   (configure
				    ? configure->xconfigure.height
				    : FRAME_PIXEL_HEIGHT (f))};
#ifdef HAVE_GTK3
  GObjectClass *object_class;
  GtkWidgetClass *class;
#endif

  if (!FRAME_DISPLAY_INFO (f)->alpha_bits)
    return;

  if (f->alpha_background < 1.0)
    XChangeProperty (FRAME_X_DISPLAY (f), FRAME_X_WINDOW (f),
		     FRAME_DISPLAY_INFO (f)->Xatom_net_wm_opaque_region,
		     XA_CARDINAL, 32, PropModeReplace,
		     NULL, 0);
#ifndef HAVE_GTK3
  else
    XChangeProperty (FRAME_X_DISPLAY (f), FRAME_X_WINDOW (f),
		     FRAME_DISPLAY_INFO (f)->Xatom_net_wm_opaque_region,
		     XA_CARDINAL, 32, PropModeReplace,
		     (unsigned char *) &opaque_region, 4);
#else
  else if (FRAME_TOOLTIP_P (f))
    XChangeProperty (FRAME_X_DISPLAY (f), FRAME_X_WINDOW (f),
		     FRAME_DISPLAY_INFO (f)->Xatom_net_wm_opaque_region,
		     XA_CARDINAL, 32, PropModeReplace,
		     (unsigned char *) &opaque_region, 4);
  else
    {
      /* This causes child frames to not update correctly for an
	 unknown reason.  (bug#55779) */
      if (!FRAME_PARENT_FRAME (f))
	{
	  object_class = G_OBJECT_GET_CLASS (FRAME_GTK_OUTER_WIDGET (f));
	  class = GTK_WIDGET_CLASS (object_class);

	  if (class->style_updated)
	    class->style_updated (FRAME_GTK_OUTER_WIDGET (f));
	}
    }
#endif
}


#if defined USE_CAIRO || defined HAVE_XRENDER
static int
x_gc_free_ext_data_private (XExtData *extension)
{
  xfree (extension->private_data);

  return 0;
}

static struct x_gc_ext_data *
x_gc_get_ext_data (struct frame *f, GC gc, int create_if_not_found_p)
{
  struct x_display_info *dpyinfo = FRAME_DISPLAY_INFO (f);
  XEDataObject object;
  XExtData **head, *ext_data;

  object.gc = gc;
  head = XEHeadOfExtensionList (object);
  ext_data = XFindOnExtensionList (head, dpyinfo->ext_codes->extension);
  if (ext_data == NULL)
    {
      if (!create_if_not_found_p)
	return NULL;
      else
	{
	  ext_data = xzalloc (sizeof (*ext_data));
	  ext_data->number = dpyinfo->ext_codes->extension;
	  ext_data->private_data = xzalloc (sizeof (struct x_gc_ext_data));
	  ext_data->free_private = x_gc_free_ext_data_private;
	  XAddToExtensionList (head, ext_data);
	}
    }
  return (struct x_gc_ext_data *) ext_data->private_data;
}

static void
x_extension_initialize (struct x_display_info *dpyinfo)
{
  XExtCodes *ext_codes = XAddExtension (dpyinfo->display);

  dpyinfo->ext_codes = ext_codes;
}
#endif

#ifdef USE_CAIRO

#define FRAME_CR_CONTEXT(f)	((f)->output_data.x->cr_context)
#define FRAME_CR_SURFACE_DESIRED_WIDTH(f) \
  ((f)->output_data.x->cr_surface_desired_width)
#define FRAME_CR_SURFACE_DESIRED_HEIGHT(f) \
  ((f)->output_data.x->cr_surface_desired_height)

#endif /* HAVE_CAIRO */

\f

/* X input extension device and event mask management functions.  */

#ifdef HAVE_XINPUT2

bool
xi_frame_selected_for (struct frame *f, unsigned long event)
{
  XIEventMask *masks;
  int i;

  masks = FRAME_X_OUTPUT (f)->xi_masks;

  if (!masks)
    return false;

  for (i = 0; i < FRAME_X_OUTPUT (f)->num_xi_masks; ++i)
    {
      if (masks[i].mask_len >= XIMaskLen (event)
	  && XIMaskIsSet (masks[i].mask, event))
	return true;
    }

  return false;
}

/* Convert XI2 button state IN to a standard X button modifier
   mask, and place it in OUT.  */

static void
xi_convert_button_state (XIButtonState *in, unsigned int *out)
{
  int i;

  if (in->mask_len)
    {
      for (i = 1; i <= 8; ++i)
	{
	  if (XIMaskIsSet (in->mask, i))
	    *out |= (Button1Mask << (i - 1));
	}
    }
}

/* Return the modifier state in XEV as a standard X modifier mask.
   This should be used for non-keyboard events, where the group does
   not matter.  */

#ifdef USE_GTK
static
#endif /* USE_GTK */
unsigned int
xi_convert_event_state (XIDeviceEvent *xev)
{
  unsigned int mods, buttons;

  mods = xev->mods.effective;
  buttons = 0;

  xi_convert_button_state (&xev->buttons, &buttons);

  return mods | buttons;
}

/* Like the above.  However, buttons are not converted, while the
   group is.  This should be used for key events being passed to the
   likes of input methods and Xt.  */

static unsigned int
xi_convert_event_keyboard_state (XIDeviceEvent *xev)
{
  return ((xev->mods.effective & ~(1 << 13 | 1 << 14))
	  | (xev->group.effective << 13));
}

/* Free all XI2 devices on DPYINFO.  */

static void
x_free_xi_devices (struct x_display_info *dpyinfo)
{
#ifdef HAVE_XINPUT2_2
  struct xi_touch_point_t *tem, *last;
#endif /* HAVE_XINPUT2_2 */

  block_input ();

  if (dpyinfo->num_devices)
    {
      for (int i = 0; i < dpyinfo->num_devices; ++i)
	{
#ifdef HAVE_XINPUT2_1
	  xfree (dpyinfo->devices[i].valuators);
#endif /* HAVE_XINPUT2_1 */

#ifdef HAVE_XINPUT2_2
	  tem = dpyinfo->devices[i].touchpoints;
	  while (tem)
	    {
	      last = tem;
	      tem = tem->next;
	      xfree (last);
	    }
#endif /* HAVE_XINPUT2_2 */
	}

      xfree (dpyinfo->devices);
      dpyinfo->devices = NULL;
      dpyinfo->num_devices = 0;
    }

  unblock_input ();
}

#ifdef HAVE_XINPUT2_1

struct xi_known_valuator
{
  /* The current value of this valuator.  */
  double current_value;

  /* The number of the valuator.  */
  int number;

  /* The next valuator whose value we already know.  */
  struct xi_known_valuator *next;
};

/* Populate the scroll valuator at INDEX in DEVICE with the scroll
   valuator information provided in INFO.

   The information consists of:

     - whether or not the valuator is horizontal.

     - whether or not the valuator's value is currently unknown,
       until the next XI_Motion event is received or the valuator's
       value is restored by the caller upon encountering valuator
       class data.

     - what the current value of the valuator is.  This is set to
       DBL_MIN for debugging purposes, but can be any value, as
       invalid_p is currently true.

     - the increment, which defines the amount of movement equal to a
       single unit of scrolling.  For example, if the increment is
       2.0, then a WHEEL_DOWN or WHEEL_UP event will be sent every
       time the valuator value changes by 2.0, unless
       mwheel-coalesce-scroll-events is nil.

     - the number used in XI_Motion events and elsewhere to identify
       the valuator.  */

static void
xi_populate_scroll_valuator (struct xi_device_t *device,
			     int index, XIScrollClassInfo *info)
{
  struct xi_scroll_valuator_t *valuator;

  valuator = &device->valuators[index];
  valuator->horizontal
    = (info->scroll_type == XIScrollTypeHorizontal);
  valuator->invalid_p = true;
  valuator->emacs_value = DBL_MIN;
  valuator->increment = info->increment;
  valuator->number = info->number;
}

#endif /* HAVE_XINPUT2_1 */

static void
xi_populate_device_from_info (struct x_display_info *dpyinfo,
			      struct xi_device_t *xi_device,
			      XIDeviceInfo *device)
{
#ifdef HAVE_XINPUT2_1
  struct xi_known_valuator *values, *tem;
  int actual_valuator_count, c;
  XIScrollClassInfo *info;
  XIValuatorClassInfo *valuator_info;
#endif /* HAVE_XINPUT2_1 */
#ifdef HAVE_XINPUT2_2
  XITouchClassInfo *touch_info;
#endif /* HAVE_XINPUT2_2 */

#ifdef HAVE_XINPUT2_1
  USE_SAFE_ALLOCA;
#endif /* HAVE_XINPUT2_1 */

  /* Initialize generic information about the device: its ID, which
     buttons are currently pressed and thus presumably actively
     grabbing the device, what kind of device it is (master pointer,
     master keyboard, slave pointer, slave keyboard, or floating
     slave), and its attachment.

     Here is a brief description of what device uses and attachments
     are.  Under XInput 2, user input from individual input devices is
     multiplexed into specific seats before being delivered, with each
     seat corresponding to a single on-screen mouse pointer and having
     its own keyboard focus.  Each seat consists of two virtual
     devices: the master keyboard and the master pointer, the first of
     which is used to report all keyboard input, with the other used
     to report all other input.

     Input from each physical device (mouse, trackpad or keyboard) is
     then associated with that slave device's paired master device.
     For example, moving the device "Logitech USB Optical Mouse",
     enslaved by the master pointer device "Virtual core pointer",
     will result in movement of the mouse pointer associated with that
     master device's seat.  If the pointer moves over an Emacs frame,
     then the frame will receive XI_Enter and XI_Motion events from
     that master pointer.

     Likewise, keyboard input from the device "AT Translated Set 2
     keyboard", enslaved by the master keyboard device "Virtual core
     keyboard", will be reported to its seat's input focus window.

     The device use describes what the device is.  The meanings of
     MasterPointer, MasterKeyboard, SlavePointer and SlaveKeyboard
     should be obvious.  FloatingSlave means the device is a slave
     device that is not associated with any seat, and thus generates
     no input.

     The device attachment is a device ID whose meaning varies
     depending on the device's use.  If a device is a master device,
     then its attachment is the device ID of the other device in its
     seat (the master keyboard for master pointer devices and vice
     versa.)  Otherwise, it is the ID of the master device the slave
     device is attached to.  For slave devices not attached to any
     seat, its value is undefined.

     Emacs receives ordinary pointer and keyboard events from the
     master devices associated with each seat, discarding events from
     slave devices.  However, multiplexing events from touch devices
     onto a master device poses problems: if both dependent and direct
     touch devices are attached to the same master pointer device, the
     coordinate space of touch events sent from that seat becomes
     ambiguous.  In addition, the X server does not send TouchEnd
     events to cancel ongoing touch sequences if the slave device that
     is their source is detached.  As a result of these ambiguities,
     touch events are processed from and recorded onto their slave
     devices instead.  */

  xi_device->device_id = device->deviceid;
  xi_device->grab = 0;
  xi_device->use = device->use;
  xi_device->name = build_string (device->name);
  xi_device->attachment = device->attachment;

  /* Clear the list of active touch points on the device, which are
     individual touches tracked by a touchscreen.  */

#ifdef HAVE_XINPUT2_2
  xi_device->touchpoints = NULL;
  xi_device->direct_p = false;
#endif /* HAVE_XINPUT2_1 */

#ifdef HAVE_XINPUT2_1
  if (!dpyinfo->xi2_version)
    {
      /* Skip everything below as there are no classes of interest on
	 XI 2.0 servers.  */
      xi_device->valuators = NULL;
      xi_device->scroll_valuator_count = 0;

      SAFE_FREE ();
      return;
    }

  actual_valuator_count = 0;
  xi_device->valuators = xnmalloc (device->num_classes,
				   sizeof *xi_device->valuators);
  values = NULL;

  /* Initialize device info based on a list of "device classes".
     Device classes are little pieces of information associated with a
     device.  Emacs is interested in scroll valuator information and
     touch handling information, which respectively describe the axes
     (if any) along which the device's scroll wheel rotates, and how
     the device reports touch input.  */

  for (c = 0; c < device->num_classes; ++c)
    {
      switch (device->classes[c]->type)
	{
	case XIScrollClass:
	  {
	    info = (XIScrollClassInfo *) device->classes[c];
	    xi_populate_scroll_valuator (xi_device, actual_valuator_count++,
					 info);
	    break;
	  }

	case XIValuatorClass:
	  {
	    valuator_info = (XIValuatorClassInfo *) device->classes[c];
	    tem = SAFE_ALLOCA (sizeof *tem);

	    /* Avoid restoring bogus values if some driver
	       accidentally specifies relative values in scroll
	       valuator classes how the input extension spec says they
	       should be, but allow restoring values when a value is
	       set, which is how the input extension actually
	       behaves.  */

	    if (valuator_info->value == 0.0
		&& valuator_info->mode != XIModeAbsolute)
	      continue;

	    tem->next = values;
	    tem->number = valuator_info->number;
	    tem->current_value = valuator_info->value;

	    values = tem;
	    break;
	  }

#ifdef HAVE_XINPUT2_2
	case XITouchClass:
	  {
	    touch_info = (XITouchClassInfo *) device->classes[c];

	    /* touch_info->mode indicates the coordinate space that
	       this device reports in its touch events.

	       DirectTouch means that the device uses a coordinate
	       space that corresponds to locations on the screen.  It
	       is set by touch screen devices which are overlaid
	       over the raster itself.

	       The other value (DependentTouch) means that the device
	       uses a separate abstract coordinate space corresponding
	       to its own surface.  Emacs ignores events from these
	       devices because it does not support recognizing touch
	       gestures from surfaces other than the screen.

	       Master devices may report multiple touch classes for
	       attached slave devices, leaving the nature of touch
	       events they send ambiguous.  The problem of
	       discriminating between these events is bypassed
	       entirely through only processing touch events from the
	       slave devices where they originate.  */

	    if (touch_info->mode == XIDirectTouch)
	      xi_device->direct_p = true;
	    else
	      xi_device->direct_p = false;
	  }
#endif /* HAVE_XINPUT2_2 */
	default:
	  break;
	}
    }

  xi_device->scroll_valuator_count = actual_valuator_count;

  /* Now look through all the valuators whose values are already known
     and populate our client-side records with their current
     values.  */

  for (tem = values; values; values = values->next)
    {
      for (c = 0; c < xi_device->scroll_valuator_count; ++c)
	{
	  if (xi_device->valuators[c].number == tem->number)
	    {
	      xi_device->valuators[c].invalid_p = false;
	      xi_device->valuators[c].current_value
		= tem->current_value;
	      xi_device->valuators[c].emacs_value = 0.0;
	    }
	}
    }

  SAFE_FREE ();
#endif /* HAVE_XINPUT2_1 */
}

/* Populate our client-side record of all devices, which includes
   basic information about the device and also touchscreen tracking
   information and scroll valuators.

   Keeping track of scroll valuators is required in order to support
   scroll wheels that report information in a fashion more detailed
   than a single turn of a "step" in the wheel.

   When the input extension is being utilized, the states of the mouse
   wheels on each axis are stored as absolute values inside
   "valuators" attached to each mouse device.  To obtain the delta of
   the scroll wheel from a motion event (which is used to report that
   some valuator has changed), it is necessary to iterate over every
   valuator that changed, and compare its previous value to the
   current value of the valuator.

   Each individual valuator also has an "interval", which is the
   amount you must divide that delta by in order to obtain a delta in
   the terms of scroll units.

   This delta however is still intermediate, to make driver
   implementations easier.  The XInput developers recommend (and most
   programs use) the following algorithm to convert from scroll unit
   deltas to pixel deltas by which the display must actually be
   scrolled:

     pixels_scrolled = pow (window_height, 2.0 / 3.0) * delta;  */

static void
x_cache_xi_devices (struct x_display_info *dpyinfo)
{
  int ndevices, actual_devices, i;
  XIDeviceInfo *infos;

  actual_devices = 0;
  block_input ();
  x_free_xi_devices (dpyinfo);
  infos = XIQueryDevice (dpyinfo->display,
			 XIAllDevices,
			 &ndevices);

  if (!ndevices)
    {
      XIFreeDeviceInfo (infos);
      unblock_input ();
      return;
    }

  dpyinfo->devices = xzalloc (sizeof *dpyinfo->devices * ndevices);

  for (i = 0; i < ndevices; ++i)
    {
      if (infos[i].enabled)
	xi_populate_device_from_info (dpyinfo,
				      &dpyinfo->devices[actual_devices++],
				      &infos[i]);
    }

  dpyinfo->num_devices = actual_devices;
  XIFreeDeviceInfo (infos);
  unblock_input ();
}

#ifdef HAVE_XINPUT2_1
/* Return the delta of the scroll valuator VALUATOR_NUMBER under
   DEVICE in the display DPYINFO with VALUE.  The valuator's valuator
   will be set to VALUE afterwards.  In case no scroll valuator is
   found, or if the valuator state is invalid (see the comment under
   XI_Enter in handle_one_xevent).  Otherwise, the valuator is
   returned in VALUATOR_RETURN.  */
static double
x_get_scroll_valuator_delta (struct x_display_info *dpyinfo,
			     struct xi_device_t *device,
			     int valuator_number, double value,
			     struct xi_scroll_valuator_t **valuator_return)
{
  struct xi_scroll_valuator_t *sv;
  double delta;
  int i;

  for (i = 0; i < device->scroll_valuator_count; ++i)
    {
      sv = &device->valuators[i];

      if (sv->number == valuator_number)
	{
	  *valuator_return = sv;

	  if (sv->increment == 0)
	    return DBL_MAX;

	  if (sv->invalid_p)
	    {
	      sv->current_value = value;
	      sv->invalid_p = false;

	      return DBL_MAX;
	    }
	  else
	    {
	      delta = (sv->current_value - value) / sv->increment;
	      sv->current_value = value;

	      return delta;
	    }
	}
    }

  *valuator_return = NULL;
  return DBL_MAX;
}

#endif

struct xi_device_t *
xi_device_from_id (struct x_display_info *dpyinfo, int deviceid)
{
  for (int i = 0; i < dpyinfo->num_devices; ++i)
    {
      if (dpyinfo->devices[i].device_id == deviceid)
	return &dpyinfo->devices[i];
    }

  return NULL;
}

#ifdef HAVE_XINPUT2_2

/* Record a touch sequence with the identifier DETAIL from the given
   FRAME on the specified DEVICE.  Round X and Y and record them as
   its current position.  */

static void
xi_link_touch_point (struct xi_device_t *device,
		     int detail, double x, double y,
		     struct frame *frame)
{
  struct xi_touch_point_t *touchpoint;

  touchpoint = xmalloc (sizeof *touchpoint);
  touchpoint->next = device->touchpoints;
  touchpoint->x = lrint (x);
  touchpoint->y = lrint (y);
  touchpoint->number = detail;
  touchpoint->frame = frame;
  touchpoint->ownership = TOUCH_OWNERSHIP_NONE;

  device->touchpoints = touchpoint;
}

/* Free and remove the touch sequence with the identifier DETAIL.
   DEVICE is the device in which the touch sequence should be
   recorded.

   Value is 0 if no touch sequence by that identifier exists inside
   DEVICE, 1 if a touch sequence has been found but is not owned by
   Emacs, and 2 otherwise.  */

static int
xi_unlink_touch_point (int detail, struct xi_device_t *device)
{
  struct xi_touch_point_t *last, *tem;
  enum xi_touch_ownership ownership;

  for (last = NULL, tem = device->touchpoints; tem;
       last = tem, tem = tem->next)
    {
      if (tem->number == detail)
	{
	  if (!last)
	    device->touchpoints = tem->next;
	  else
	    last->next = tem->next;

	  ownership = tem->ownership;
	  xfree (tem);

	  if (ownership == TOUCH_OWNERSHIP_SELF)
	    return 2;

	  return 1;
	}
    }

  return 0;
}

/* Unlink all touch points associated with the frame F.
   This is done upon unmapping or destroying F's window, because
   touch point delivery after that point is undefined.  */

static void
xi_unlink_touch_points (struct frame *f)
{
  struct xi_device_t *device;
  struct xi_touch_point_t **next, *last;
  int i;

  for (i = 0; i < FRAME_DISPLAY_INFO (f)->num_devices; ++i)
    {
      device = &FRAME_DISPLAY_INFO (f)->devices[i];

      /* Now unlink all touch points on DEVICE matching F.  */

      for (next = &device->touchpoints; (last = *next);)
	{
	  if (last->frame == f)
	    {
	      *next = last->next;
	      xfree (last);
	    }
	  else
	    next = &last->next;
	}
    }
}

/* Return the data associated with a touch sequence DETAIL recorded by
   `xi_link_touch_point' from DEVICE, or NULL if it can't be
   found.  */

static struct xi_touch_point_t *
xi_find_touch_point (struct xi_device_t *device, int detail)
{
  struct xi_touch_point_t *point;

  for (point = device->touchpoints; point; point = point->next)
    {
      if (point->number == detail)
	return point;
    }

  return NULL;
}

#endif /* HAVE_XINPUT2_2 */

#ifdef HAVE_XINPUT2_1

static void
xi_reset_scroll_valuators_for_device_id (struct x_display_info *dpyinfo,
					 int id)
{
  struct xi_device_t *device;
  struct xi_scroll_valuator_t *valuator;
  int i;

  device = xi_device_from_id (dpyinfo, id);

  if (!device)
    return;

  if (!device->scroll_valuator_count)
    return;

  for (i = 0; i < device->scroll_valuator_count; ++i)
    {
      valuator = &device->valuators[i];
      valuator->invalid_p = true;
      valuator->emacs_value = 0.0;
    }

  return;
}

#endif /* HAVE_XINPUT2_1 */
#endif /* HAVE_XINPUT2 */

\f

/* Cairo context, X rendering extension, and GC auxiliary data
   management functions.  */

#ifdef USE_CAIRO

void
x_cr_destroy_frame_context (struct frame *f)
{
  if (FRAME_CR_CONTEXT (f))
    {
      cairo_destroy (FRAME_CR_CONTEXT (f));
      FRAME_CR_CONTEXT (f) = NULL;
    }
}

void
x_cr_update_surface_desired_size (struct frame *f, int width, int height)
{
  if (FRAME_CR_SURFACE_DESIRED_WIDTH (f) != width
      || FRAME_CR_SURFACE_DESIRED_HEIGHT (f) != height)
    {
      x_cr_destroy_frame_context (f);
      FRAME_CR_SURFACE_DESIRED_WIDTH (f) = width;
      FRAME_CR_SURFACE_DESIRED_HEIGHT (f) = height;
    }
}

static void
x_cr_gc_clip (cairo_t *cr, struct frame *f, GC gc)
{
  if (gc)
    {
      struct x_gc_ext_data *gc_ext = x_gc_get_ext_data (f, gc, 0);

      if (gc_ext && gc_ext->n_clip_rects)
	{
	  for (int i = 0; i < gc_ext->n_clip_rects; i++)
	    cairo_rectangle (cr, gc_ext->clip_rects[i].x,
			     gc_ext->clip_rects[i].y,
			     gc_ext->clip_rects[i].width,
			     gc_ext->clip_rects[i].height);
	  cairo_clip (cr);
	}
    }
}

cairo_t *
x_begin_cr_clip (struct frame *f, GC gc)
{
  cairo_t *cr = FRAME_CR_CONTEXT (f);

  if (!cr)
    {
      int width = FRAME_CR_SURFACE_DESIRED_WIDTH (f);
      int height = FRAME_CR_SURFACE_DESIRED_HEIGHT (f);
      cairo_surface_t *surface;
#ifdef USE_CAIRO_XCB_SURFACE
      if (FRAME_DISPLAY_INFO (f)->xcb_visual)
	surface = cairo_xcb_surface_create (FRAME_DISPLAY_INFO (f)->xcb_connection,
					    (xcb_drawable_t) FRAME_X_RAW_DRAWABLE (f),
					    FRAME_DISPLAY_INFO (f)->xcb_visual,
					    width, height);
      else
#endif
	surface = cairo_xlib_surface_create (FRAME_X_DISPLAY (f),
					     FRAME_X_RAW_DRAWABLE (f),
					     FRAME_X_VISUAL (f),
					     width, height);

      cr = FRAME_CR_CONTEXT (f) = cairo_create (surface);
      cairo_surface_destroy (surface);
    }
  cairo_save (cr);
  x_cr_gc_clip (cr, f, gc);

  return cr;
}

void
x_end_cr_clip (struct frame *f)
{
  cairo_restore (FRAME_CR_CONTEXT (f));
#ifdef HAVE_XDBE
  if (FRAME_X_DOUBLE_BUFFERED_P (f))
    x_mark_frame_dirty (f);
#endif
}

void
x_set_cr_source_with_gc_foreground (struct frame *f, GC gc,
				    bool respect_alpha_background)
{
  XGCValues xgcv;
  XColor color;
  unsigned int depth;

  XGetGCValues (FRAME_X_DISPLAY (f), gc, GCForeground, &xgcv);
  color.pixel = xgcv.foreground;
  x_query_colors (f, &color, 1);
  depth = FRAME_DISPLAY_INFO (f)->n_planes;

  if (f->alpha_background < 1.0 && depth == 32
      && respect_alpha_background)
    {
      cairo_set_source_rgba (FRAME_CR_CONTEXT (f), color.red / 65535.0,
			     color.green / 65535.0, color.blue / 65535.0,
			     f->alpha_background);

      cairo_set_operator (FRAME_CR_CONTEXT (f), CAIRO_OPERATOR_SOURCE);
    }
  else
    {
      cairo_set_source_rgb (FRAME_CR_CONTEXT (f), color.red / 65535.0,
			    color.green / 65535.0, color.blue / 65535.0);
      cairo_set_operator (FRAME_CR_CONTEXT (f), CAIRO_OPERATOR_OVER);
    }
}

void
x_set_cr_source_with_gc_background (struct frame *f, GC gc,
				    bool respect_alpha_background)
{
  XGCValues xgcv;
  XColor color;
  unsigned int depth;

  XGetGCValues (FRAME_X_DISPLAY (f), gc, GCBackground, &xgcv);
  color.pixel = xgcv.background;

  x_query_colors (f, &color, 1);

  depth = FRAME_DISPLAY_INFO (f)->n_planes;

  if (f->alpha_background < 1.0 && depth == 32
      && respect_alpha_background)
    {
      cairo_set_source_rgba (FRAME_CR_CONTEXT (f), color.red / 65535.0,
			     color.green / 65535.0, color.blue / 65535.0,
			     f->alpha_background);

      cairo_set_operator (FRAME_CR_CONTEXT (f), CAIRO_OPERATOR_SOURCE);
    }
  else
    {
      cairo_set_source_rgb (FRAME_CR_CONTEXT (f), color.red / 65535.0,
			    color.green / 65535.0, color.blue / 65535.0);
      cairo_set_operator (FRAME_CR_CONTEXT (f), CAIRO_OPERATOR_OVER);
    }
}

static const cairo_user_data_key_t xlib_surface_key, saved_drawable_key;

static void
x_cr_destroy_xlib_surface (cairo_surface_t *xlib_surface)
{
  if (xlib_surface)
    {
      XFreePixmap (cairo_xlib_surface_get_display (xlib_surface),
		   cairo_xlib_surface_get_drawable (xlib_surface));
      cairo_surface_destroy (xlib_surface);
    }
}

static bool
x_try_cr_xlib_drawable (struct frame *f, GC gc)
{
  cairo_t *cr = FRAME_CR_CONTEXT (f);
  if (!cr)
    return true;

  cairo_surface_t *surface = cairo_get_target (cr);
  switch (cairo_surface_get_type (surface))
    {
    case CAIRO_SURFACE_TYPE_XLIB:
#ifdef USE_CAIRO_XCB_SURFACE
    case CAIRO_SURFACE_TYPE_XCB:
#endif
      cairo_surface_flush (surface);
      return true;

    case CAIRO_SURFACE_TYPE_IMAGE:
      break;

    default:
      return false;
    }

  /* FRAME_CR_CONTEXT (f) is an image surface we can not draw into
     directly with Xlib.  Set up a Pixmap so we can copy back the
     result later in x_end_cr_xlib_drawable.  */
  cairo_surface_t *xlib_surface = cairo_get_user_data (cr, &xlib_surface_key);
  int width = FRAME_CR_SURFACE_DESIRED_WIDTH (f);
  int height = FRAME_CR_SURFACE_DESIRED_HEIGHT (f);
  Pixmap pixmap;
  if (xlib_surface
      && cairo_xlib_surface_get_width (xlib_surface) == width
      && cairo_xlib_surface_get_height (xlib_surface) == height)
    pixmap = cairo_xlib_surface_get_drawable (xlib_surface);
  else
    {
      pixmap = XCreatePixmap (FRAME_X_DISPLAY (f), FRAME_X_RAW_DRAWABLE (f),
			      width, height,
			      DefaultDepthOfScreen (FRAME_X_SCREEN (f)));
      xlib_surface = cairo_xlib_surface_create (FRAME_X_DISPLAY (f),
						pixmap, FRAME_X_VISUAL (f),
						width, height);
      cairo_set_user_data (cr, &xlib_surface_key, xlib_surface,
			   (cairo_destroy_func_t) x_cr_destroy_xlib_surface);
    }

  cairo_t *buf = cairo_create (xlib_surface);
  cairo_set_source_surface (buf, surface, 0, 0);
  cairo_matrix_t matrix;
  cairo_get_matrix (cr, &matrix);
  cairo_pattern_set_matrix (cairo_get_source (cr), &matrix);
  cairo_set_operator (buf, CAIRO_OPERATOR_SOURCE);
  x_cr_gc_clip (buf, f, gc);
  cairo_paint (buf);
  cairo_destroy (buf);

  cairo_set_user_data (cr, &saved_drawable_key,
		       (void *) (uintptr_t) FRAME_X_RAW_DRAWABLE (f), NULL);
  FRAME_X_RAW_DRAWABLE (f) = pixmap;
  cairo_surface_flush (xlib_surface);

  return true;
}

static void
x_end_cr_xlib_drawable (struct frame *f, GC gc)
{
  cairo_t *cr = FRAME_CR_CONTEXT (f);
  if (!cr)
    return;

  Drawable saved_drawable
    = (uintptr_t) cairo_get_user_data (cr, &saved_drawable_key);
  cairo_surface_t *surface = (saved_drawable
			      ? cairo_get_user_data (cr, &xlib_surface_key)
			      : cairo_get_target (cr));
  struct x_gc_ext_data *gc_ext = x_gc_get_ext_data (f, gc, 0);
  if (gc_ext && gc_ext->n_clip_rects)
    for (int i = 0; i < gc_ext->n_clip_rects; i++)
      cairo_surface_mark_dirty_rectangle (surface, gc_ext->clip_rects[i].x,
					  gc_ext->clip_rects[i].y,
					  gc_ext->clip_rects[i].width,
					  gc_ext->clip_rects[i].height);
  else
    cairo_surface_mark_dirty (surface);
  if (!saved_drawable)
    return;

  cairo_save (cr);
  cairo_set_source_surface (cr, surface, 0, 0);
  cairo_set_operator (cr, CAIRO_OPERATOR_SOURCE);
  x_cr_gc_clip (cr, f, gc);
  cairo_paint (cr);
  cairo_restore (cr);

  FRAME_X_RAW_DRAWABLE (f) = saved_drawable;
  cairo_set_user_data (cr, &saved_drawable_key, NULL, NULL);
}

/* Fringe bitmaps.  */

static int max_fringe_bmp = 0;
static cairo_pattern_t **fringe_bmp = 0;

static void
x_cr_define_fringe_bitmap (int which, unsigned short *bits, int h, int wd)
{
  int i, stride;
  cairo_surface_t *surface;
  cairo_pattern_t *pattern;
  unsigned char *data;

  if (which >= max_fringe_bmp)
    {
      i = max_fringe_bmp;
      max_fringe_bmp = which + 20;
      fringe_bmp = xrealloc (fringe_bmp, max_fringe_bmp * sizeof (*fringe_bmp));
      while (i < max_fringe_bmp)
	fringe_bmp[i++] = 0;
    }

  block_input ();

  surface = cairo_image_surface_create (CAIRO_FORMAT_A1, wd, h);
  stride = cairo_image_surface_get_stride (surface);
  data = cairo_image_surface_get_data (surface);

  for (i = 0; i < h; i++)
    {
      *((unsigned short *) data) = bits[i];
      data += stride;
    }

  cairo_surface_mark_dirty (surface);
  pattern = cairo_pattern_create_for_surface (surface);
  cairo_surface_destroy (surface);

  unblock_input ();

  fringe_bmp[which] = pattern;
}

static void
x_cr_destroy_fringe_bitmap (int which)
{
  if (which >= max_fringe_bmp)
    return;

  if (fringe_bmp[which])
    {
      block_input ();
      cairo_pattern_destroy (fringe_bmp[which]);
      unblock_input ();
    }
  fringe_bmp[which] = 0;
}

static void
x_cr_draw_image (struct frame *f, GC gc, cairo_pattern_t *image,
		 int src_x, int src_y, int width, int height,
		 int dest_x, int dest_y, bool overlay_p)
{
  cairo_t *cr = x_begin_cr_clip (f, gc);

  if (overlay_p)
    cairo_rectangle (cr, dest_x, dest_y, width, height);
  else
    {
      x_set_cr_source_with_gc_background (f, gc, false);
      cairo_rectangle (cr, dest_x, dest_y, width, height);
      cairo_fill_preserve (cr);
    }

  cairo_translate (cr, dest_x - src_x, dest_y - src_y);

  cairo_surface_t *surface;
  cairo_pattern_get_surface (image, &surface);
  cairo_format_t format = cairo_image_surface_get_format (surface);
  if (format != CAIRO_FORMAT_A8 && format != CAIRO_FORMAT_A1)
    {
      cairo_set_source (cr, image);
      cairo_fill (cr);
    }
  else
    {
      x_set_cr_source_with_gc_foreground (f, gc, false);
      cairo_clip (cr);
      cairo_mask (cr, image);
    }

  x_end_cr_clip (f);
}

void
x_cr_draw_frame (cairo_t *cr, struct frame *f)
{
  int width, height;

  width = FRAME_PIXEL_WIDTH (f);
  height = FRAME_PIXEL_HEIGHT (f);

  cairo_t *saved_cr = FRAME_CR_CONTEXT (f);
  FRAME_CR_CONTEXT (f) = cr;
  x_clear_area (f, 0, 0, width, height);
  expose_frame (f, 0, 0, width, height);
  FRAME_CR_CONTEXT (f) = saved_cr;
}

static cairo_status_t
x_cr_accumulate_data (void *closure, const unsigned char *data,
		      unsigned int length)
{
  Lisp_Object *acc = (Lisp_Object *) closure;

  *acc = Fcons (make_unibyte_string ((char const *) data, length), *acc);

  return CAIRO_STATUS_SUCCESS;
}

static void
x_cr_destroy (void *cr)
{
  block_input ();
  cairo_destroy (cr);
  unblock_input ();
}

Lisp_Object
x_cr_export_frames (Lisp_Object frames, cairo_surface_type_t surface_type)
{
  struct frame *f;
  cairo_surface_t *surface;
  cairo_t *cr;
  int width, height;
  void (*surface_set_size_func) (cairo_surface_t *, double, double) = NULL;
  Lisp_Object acc = Qnil;
  specpdl_ref count = SPECPDL_INDEX ();

  specbind (Qredisplay_dont_pause, Qt);
  redisplay_preserve_echo_area (31);

  f = XFRAME (XCAR (frames));
  frames = XCDR (frames);
  width = FRAME_PIXEL_WIDTH (f);
  height = FRAME_PIXEL_HEIGHT (f);

  block_input ();
#ifdef CAIRO_HAS_PDF_SURFACE
  if (surface_type == CAIRO_SURFACE_TYPE_PDF)
    {
      surface = cairo_pdf_surface_create_for_stream (x_cr_accumulate_data, &acc,
						     width, height);
      surface_set_size_func = cairo_pdf_surface_set_size;
    }
  else
#endif
#ifdef CAIRO_HAS_PNG_FUNCTIONS
  if (surface_type == CAIRO_SURFACE_TYPE_IMAGE)
    surface = cairo_image_surface_create (CAIRO_FORMAT_RGB24, width, height);
  else
#endif
#ifdef CAIRO_HAS_PS_SURFACE
  if (surface_type == CAIRO_SURFACE_TYPE_PS)
    {
      surface = cairo_ps_surface_create_for_stream (x_cr_accumulate_data, &acc,
						    width, height);
      surface_set_size_func = cairo_ps_surface_set_size;
    }
  else
#endif
#ifdef CAIRO_HAS_SVG_SURFACE
  if (surface_type == CAIRO_SURFACE_TYPE_SVG)
    surface = cairo_svg_surface_create_for_stream (x_cr_accumulate_data, &acc,
						   width, height);
  else
#endif
    abort ();

  cr = cairo_create (surface);
  cairo_surface_destroy (surface);
  record_unwind_protect_ptr (x_cr_destroy, cr);

  while (1)
    {
      cairo_t *saved_cr = FRAME_CR_CONTEXT (f);
      FRAME_CR_CONTEXT (f) = cr;
      x_clear_area (f, 0, 0, width, height);
      expose_frame (f, 0, 0, width, height);
      FRAME_CR_CONTEXT (f) = saved_cr;

      if (NILP (frames))
	break;

      cairo_surface_show_page (surface);
      f = XFRAME (XCAR (frames));
      frames = XCDR (frames);
      width = FRAME_PIXEL_WIDTH (f);
      height = FRAME_PIXEL_HEIGHT (f);
      if (surface_set_size_func)
	(*surface_set_size_func) (surface, width, height);

      unblock_input ();
      maybe_quit ();
      block_input ();
    }

#ifdef CAIRO_HAS_PNG_FUNCTIONS
  if (surface_type == CAIRO_SURFACE_TYPE_IMAGE)
    {
      cairo_surface_flush (surface);
      cairo_surface_write_to_png_stream (surface, x_cr_accumulate_data, &acc);
    }
#endif
  unblock_input ();

  unbind_to (count, Qnil);

  return CALLN (Fapply, Qconcat, Fnreverse (acc));
}

#endif	/* USE_CAIRO */

#if defined HAVE_XRENDER

void
x_xr_apply_ext_clip (struct frame *f, GC gc)
{
  eassert (FRAME_X_PICTURE (f) != None);

  struct x_gc_ext_data *data = x_gc_get_ext_data (f, gc, 1);

  if (data->n_clip_rects)
    XRenderSetPictureClipRectangles (FRAME_X_DISPLAY (f),
				     FRAME_X_PICTURE (f),
				     0, 0, data->clip_rects,
				     data->n_clip_rects);
}

void
x_xr_reset_ext_clip (struct frame *f)
{
  XRenderPictureAttributes attrs = { .clip_mask = None };

  XRenderChangePicture (FRAME_X_DISPLAY (f),
			FRAME_X_PICTURE (f),
			CPClipMask, &attrs);
}

#endif /* HAVE_XRENDER */

static void
x_set_clip_rectangles (struct frame *f, GC gc, XRectangle *rectangles, int n)
{
  XSetClipRectangles (FRAME_X_DISPLAY (f), gc, 0, 0, rectangles, n, Unsorted);
#if defined USE_CAIRO || defined HAVE_XRENDER
  eassert (n >= 0 && n <= MAX_CLIP_RECTS);

  {
    struct x_gc_ext_data *gc_ext = x_gc_get_ext_data (f, gc, 1);

    gc_ext->n_clip_rects = n;
    memcpy (gc_ext->clip_rects, rectangles, sizeof (XRectangle) * n);
  }
#endif
}

static void
x_reset_clip_rectangles (struct frame *f, GC gc)
{
  XSetClipMask (FRAME_X_DISPLAY (f), gc, None);
#if defined USE_CAIRO || defined HAVE_XRENDER
  {
    struct x_gc_ext_data *gc_ext = x_gc_get_ext_data (f, gc, 0);

    if (gc_ext)
      gc_ext->n_clip_rects = 0;
  }
#endif
}

#ifdef HAVE_XRENDER
# if !defined USE_CAIRO && (RENDER_MAJOR > 0 || RENDER_MINOR >= 2)
static void
x_xrender_color_from_gc_foreground (struct frame *f, GC gc, XRenderColor *color,
				    bool apply_alpha_background)
{
  XGCValues xgcv;
  XColor xc;

  XGetGCValues (FRAME_X_DISPLAY (f), gc, GCForeground, &xgcv);
  xc.pixel = xgcv.foreground;
  x_query_colors (f, &xc, 1);

  color->alpha = (apply_alpha_background
		  ? 65535 * f->alpha_background
		  : 65535);

  if (color->alpha == 65535)
    {
      color->red = xc.red;
      color->blue = xc.blue;
      color->green = xc.green;
    }
  else
    {
      color->red = (xc.red * color->alpha) / 65535;
      color->blue = (xc.blue * color->alpha) / 65535;
      color->green = (xc.green * color->alpha) / 65535;
    }
}
# endif

void
x_xrender_color_from_gc_background (struct frame *f, GC gc, XRenderColor *color,
				    bool apply_alpha_background)
{
  XGCValues xgcv;
  XColor xc;

  XGetGCValues (FRAME_X_DISPLAY (f), gc, GCBackground, &xgcv);
  xc.pixel = xgcv.background;
  x_query_colors (f, &xc, 1);

  color->alpha = (apply_alpha_background
		  ? 65535 * f->alpha_background
		  : 65535);

  if (color->alpha == 65535)
    {
      color->red = xc.red;
      color->blue = xc.blue;
      color->green = xc.green;
    }
  else
    {
      color->red = (xc.red * color->alpha) / 65535;
      color->blue = (xc.blue * color->alpha) / 65535;
      color->green = (xc.green * color->alpha) / 65535;
    }
}
#endif

static void
x_fill_rectangle (struct frame *f, GC gc, int x, int y, int width, int height,
		  bool respect_alpha_background)
{
#ifdef USE_CAIRO
  Display *dpy = FRAME_X_DISPLAY (f);
  cairo_t *cr;
  XGCValues xgcv;

  cr = x_begin_cr_clip (f, gc);
  XGetGCValues (dpy, gc, GCFillStyle | GCStipple, &xgcv);
  if (xgcv.fill_style == FillSolid
      /* Invalid resource ID (one or more of the three most
	 significant bits set to 1) is obtained if the GCStipple
	 component has never been explicitly set.  It should be
	 regarded as Pixmap of unspecified size filled with ones.  */
      || (xgcv.stipple & ((Pixmap) 7 << (sizeof (Pixmap) * CHAR_BIT - 3))))
    {
      x_set_cr_source_with_gc_foreground (f, gc, respect_alpha_background);
      cairo_rectangle (cr, x, y, width, height);
      cairo_fill (cr);
    }
  else
    {
      eassert (xgcv.fill_style == FillOpaqueStippled);
      eassert (xgcv.stipple != None);
      x_set_cr_source_with_gc_background (f, gc, respect_alpha_background);
      cairo_rectangle (cr, x, y, width, height);
      cairo_fill_preserve (cr);

      cairo_pattern_t *pattern = x_bitmap_stipple (f, xgcv.stipple);
      if (pattern)
	{
	  x_set_cr_source_with_gc_foreground (f, gc, respect_alpha_background);
	  cairo_clip (cr);
	  cairo_mask (cr, pattern);
	}
    }
  x_end_cr_clip (f);
#else
#if defined HAVE_XRENDER && (RENDER_MAJOR > 0 || (RENDER_MINOR >= 2))
  if (respect_alpha_background
      && f->alpha_background != 1.0
      && FRAME_DISPLAY_INFO (f)->alpha_bits
      && FRAME_CHECK_XR_VERSION (f, 0, 2))
    {
      x_xr_ensure_picture (f);

      if (FRAME_X_PICTURE (f) != None)
	{
	  XRenderColor xc;

#if RENDER_MAJOR > 0 || (RENDER_MINOR >= 10)
	  XGCValues xgcv;
	  XRenderPictureAttributes attrs;
	  XRenderColor alpha;
	  Picture stipple, fill;
#endif

	  x_xr_apply_ext_clip (f, gc);

#if RENDER_MAJOR > 0 || (RENDER_MINOR >= 10)
	  XGetGCValues (FRAME_X_DISPLAY (f),
			gc, GCFillStyle | GCStipple, &xgcv);

	  if (xgcv.fill_style == FillOpaqueStippled
	      && FRAME_CHECK_XR_VERSION (f, 0, 10))
	    {
	      x_xrender_color_from_gc_background (f, gc, &alpha, true);
	      x_xrender_color_from_gc_foreground (f, gc, &xc, true);
	      attrs.repeat = RepeatNormal;

	      stipple = XRenderCreatePicture (FRAME_X_DISPLAY (f),
					      xgcv.stipple,
					      XRenderFindStandardFormat (FRAME_X_DISPLAY (f),
									 PictStandardA1),
					      CPRepeat, &attrs);

	      XRenderFillRectangle (FRAME_X_DISPLAY (f), PictOpSrc,
				    FRAME_X_PICTURE (f),
				    &alpha, x, y, width, height);

	      fill = XRenderCreateSolidFill (FRAME_X_DISPLAY (f), &xc);

	      XRenderComposite (FRAME_X_DISPLAY (f), PictOpOver, fill, stipple,
				FRAME_X_PICTURE (f), 0, 0, x, y, x, y, width, height);

	      XRenderFreePicture (FRAME_X_DISPLAY (f), stipple);
	      XRenderFreePicture (FRAME_X_DISPLAY (f), fill);
	    }
	  else
#endif
	    {
	      x_xrender_color_from_gc_foreground (f, gc, &xc, true);
	      XRenderFillRectangle (FRAME_X_DISPLAY (f),
				    PictOpSrc, FRAME_X_PICTURE (f),
				    &xc, x, y, width, height);
	    }
	  x_xr_reset_ext_clip (f);
	  x_mark_frame_dirty (f);

	  return;
	}
    }
#endif
  XFillRectangle (FRAME_X_DISPLAY (f), FRAME_X_DRAWABLE (f),
		  gc, x, y, width, height);
#endif
}

\f

/* Graphics primitives.  */

static void
x_clear_rectangle (struct frame *f, GC gc, int x, int y, int width, int height,
		   bool respect_alpha_background)
{
#ifdef USE_CAIRO
  cairo_t *cr;

  cr = x_begin_cr_clip (f, gc);
  x_set_cr_source_with_gc_background (f, gc, respect_alpha_background);
  cairo_rectangle (cr, x, y, width, height);
  cairo_fill (cr);
  x_end_cr_clip (f);
#else
#if defined HAVE_XRENDER && (RENDER_MAJOR > 0 || (RENDER_MINOR >= 2))
  if (respect_alpha_background
      && f->alpha_background != 1.0
      && FRAME_DISPLAY_INFO (f)->alpha_bits
      && FRAME_CHECK_XR_VERSION (f, 0, 2))
    {
      x_xr_ensure_picture (f);

      if (FRAME_X_PICTURE (f) != None)
	{
	  XRenderColor xc;

	  x_xr_apply_ext_clip (f, gc);
	  x_xrender_color_from_gc_background (f, gc, &xc, true);
	  XRenderFillRectangle (FRAME_X_DISPLAY (f),
				PictOpSrc, FRAME_X_PICTURE (f),
				&xc, x, y, width, height);
	  x_xr_reset_ext_clip (f);
	  x_mark_frame_dirty (f);

	  return;
	}
    }
#endif

  XGCValues xgcv;
  Display *dpy = FRAME_X_DISPLAY (f);
  XGetGCValues (dpy, gc, GCBackground | GCForeground, &xgcv);
  XSetForeground (dpy, gc, xgcv.background);
  XFillRectangle (dpy, FRAME_X_DRAWABLE (f),
		  gc, x, y, width, height);
  XSetForeground (dpy, gc, xgcv.foreground);
#endif
}

static void
x_draw_rectangle (struct frame *f, GC gc, int x, int y, int width, int height)
{
#ifdef USE_CAIRO
  cairo_t *cr;

  cr = x_begin_cr_clip (f, gc);
  x_set_cr_source_with_gc_foreground (f, gc, false);
  cairo_rectangle (cr, x + 0.5, y + 0.5, width, height);
  cairo_set_line_width (cr, 1);
  cairo_stroke (cr);
  x_end_cr_clip (f);
#else
  XDrawRectangle (FRAME_X_DISPLAY (f), FRAME_X_DRAWABLE (f),
		  gc, x, y, width, height);
#endif
}

static void
x_clear_window (struct frame *f)
{
#ifdef USE_CAIRO
  cairo_t *cr;

  cr = x_begin_cr_clip (f, NULL);
  x_set_cr_source_with_gc_background (f, f->output_data.x->normal_gc, true);
  cairo_paint (cr);
  x_end_cr_clip (f);
#else
#ifndef USE_GTK
  if (f->alpha_background != 1.0
#ifdef HAVE_XDBE
      || FRAME_X_DOUBLE_BUFFERED_P (f)
#endif
      )
#endif
    x_clear_area (f, 0, 0, FRAME_PIXEL_WIDTH (f),
		  FRAME_PIXEL_HEIGHT (f));
#ifndef USE_GTK
  else
    XClearWindow (FRAME_X_DISPLAY (f), FRAME_X_WINDOW (f));
#endif
#endif
}

#ifdef USE_CAIRO
static void
x_fill_trapezoid_for_relief (struct frame *f, GC gc, int x, int y,
			     int width, int height, int top_p)
{
  cairo_t *cr;

  cr = x_begin_cr_clip (f, gc);
  x_set_cr_source_with_gc_foreground (f, gc, false);
  cairo_move_to (cr, top_p ? x : x + height, y);
  cairo_line_to (cr, x, y + height);
  cairo_line_to (cr, top_p ? x + width - height : x + width, y + height);
  cairo_line_to (cr, x + width, y);
  cairo_fill (cr);
  x_end_cr_clip (f);
}

enum corners
  {
    CORNER_BOTTOM_RIGHT,	/* 0 -> pi/2 */
    CORNER_BOTTOM_LEFT,		/* pi/2 -> pi */
    CORNER_TOP_LEFT,		/* pi -> 3pi/2 */
    CORNER_TOP_RIGHT,		/* 3pi/2 -> 2pi */
    CORNER_LAST
  };

static void
x_erase_corners_for_relief (struct frame *f, GC gc, int x, int y,
			    int width, int height,
			    double radius, double margin, int corners)
{
  cairo_t *cr;
  int i;

  cr = x_begin_cr_clip (f, gc);
  x_set_cr_source_with_gc_background (f, gc, false);
  for (i = 0; i < CORNER_LAST; i++)
    if (corners & (1 << i))
      {
	double xm, ym, xc, yc;

	if (i == CORNER_TOP_LEFT || i == CORNER_BOTTOM_LEFT)
	  xm = x - margin, xc = xm + radius;
	else
	  xm = x + width + margin, xc = xm - radius;
	if (i == CORNER_TOP_LEFT || i == CORNER_TOP_RIGHT)
	  ym = y - margin, yc = ym + radius;
	else
	  ym = y + height + margin, yc = ym - radius;

	cairo_move_to (cr, xm, ym);
	cairo_arc (cr, xc, yc, radius, i * M_PI_2, (i + 1) * M_PI_2);
      }
  cairo_clip (cr);
  cairo_rectangle (cr, x, y, width, height);
  cairo_fill (cr);
  x_end_cr_clip (f);
}

static void
x_draw_horizontal_wave (struct frame *f, GC gc, int x, int y,
			int width, int height, int wave_length)
{
  cairo_t *cr;
  double dx = wave_length, dy = height - 1;
  int xoffset, n;

  cr = x_begin_cr_clip (f, gc);
  x_set_cr_source_with_gc_foreground (f, gc, false);
  cairo_rectangle (cr, x, y, width, height);
  cairo_clip (cr);

  if (x >= 0)
    {
      xoffset = x % (wave_length * 2);
      if (xoffset == 0)
	xoffset = wave_length * 2;
    }
  else
    xoffset = x % (wave_length * 2) + wave_length * 2;
  n = (width + xoffset) / wave_length + 1;
  if (xoffset > wave_length)
    {
      xoffset -= wave_length;
      --n;
      y += height - 1;
      dy = -dy;
    }

  cairo_move_to (cr, x - xoffset + 0.5, y + 0.5);
  while (--n >= 0)
    {
      cairo_rel_line_to (cr, dx, dy);
      dy = -dy;
    }
  cairo_set_line_width (cr, 1);
  cairo_stroke (cr);
  x_end_cr_clip (f);
}
#endif

\f
/* Return the struct x_display_info corresponding to DPY.  */

struct x_display_info *
x_display_info_for_display (Display *dpy)
{
  struct x_display_info *dpyinfo;

  for (dpyinfo = x_display_list; dpyinfo; dpyinfo = dpyinfo->next)
    if (dpyinfo->display == dpy)
      return dpyinfo;

  return 0;
}

static Window
x_find_topmost_parent (struct frame *f)
{
  struct x_output *x = f->output_data.x;
  Window win = None, wi = x->parent_desc;
  Display *dpy = FRAME_X_DISPLAY (f);

  while (wi != FRAME_DISPLAY_INFO (f)->root_window)
    {
      Window root;
      Window *children;
      unsigned int nchildren;

      win = wi;
      if (XQueryTree (dpy, win, &root, &wi, &children, &nchildren))
	XFree (children);
      else
	break;
    }

  return win;
}

#define OPAQUE  0xffffffff

static void
x_set_frame_alpha (struct frame *f)
{
  struct x_display_info *dpyinfo = FRAME_DISPLAY_INFO (f);
  Display *dpy = FRAME_X_DISPLAY (f);
  Window win = FRAME_OUTER_WINDOW (f);
  double alpha = 1.0;
  double alpha_min = 1.0;
  unsigned long opac;
  Window parent;

  if (dpyinfo->highlight_frame == f)
    alpha = f->alpha[0];
  else
    alpha = f->alpha[1];

  if (alpha < 0.0)
    return;

  if (FLOATP (Vframe_alpha_lower_limit))
    alpha_min = XFLOAT_DATA (Vframe_alpha_lower_limit);
  else if (FIXNUMP (Vframe_alpha_lower_limit))
    alpha_min = (XFIXNUM (Vframe_alpha_lower_limit)) / 100.0;

  if (alpha > 1.0)
    alpha = 1.0;
  else if (alpha < alpha_min && alpha_min <= 1.0)
    alpha = alpha_min;

  opac = alpha * OPAQUE;

  /* If there is a parent from the window manager, put the property there
     also, to work around broken window managers that fail to do that.
     Do this unconditionally as this function is called on reparent when
     alpha has not changed on the frame.  */

  x_ignore_errors_for_next_request (dpyinfo, 0);

  if (!FRAME_PARENT_FRAME (f))
    {
      parent = x_find_topmost_parent (f);

      if (parent != None)
	{
	  XChangeProperty (dpy, parent,
			   dpyinfo->Xatom_net_wm_window_opacity,
			   XA_CARDINAL, 32, PropModeReplace,
			   (unsigned char *) &opac, 1);
	}
    }

  XChangeProperty (dpy, win, dpyinfo->Xatom_net_wm_window_opacity,
		   XA_CARDINAL, 32, PropModeReplace,
		   (unsigned char *) &opac, 1);
  x_stop_ignoring_errors (dpyinfo);
}

\f

/***********************************************************************
		    Starting and ending an update
 ***********************************************************************/

#if defined HAVE_XSYNC && !defined USE_GTK && defined HAVE_CLOCK_GETTIME

/* Wait for an event matching PREDICATE to show up in the event
   queue, or TIMEOUT to elapse.

   If TIMEOUT passes without an event being found, return 1.
   Otherwise, return 0 and behave as XIfEvent would.  */

static int
x_if_event (Display *dpy, XEvent *event_return,
	    Bool (*predicate) (Display *, XEvent *, XPointer),
	    XPointer arg, struct timespec timeout)
{
  struct timespec current_time, target;
  int fd;
  fd_set fds;

  fd = ConnectionNumber (dpy);
  current_time = current_timespec ();
  target = timespec_add (current_time, timeout);

  /* Check if an event is already in the queue.  If it is, avoid
     syncing.  */
  if (XCheckIfEvent (dpy, event_return, predicate, arg))
    return 0;

  while (true)
    {
      /* Get events into the queue.  */
      XSync (dpy, False);

      /* Look for an event again.  */
      if (XCheckIfEvent (dpy, event_return, predicate, arg))
	return 0;

      /* Calculate the timeout.  */
      current_time = current_timespec ();
      timeout = timespec_sub (target, current_time);

      /* If not, wait for some input to show up on the X connection,
	 or for the timeout to elapse.  */
      FD_ZERO (&fds);
      FD_SET (fd, &fds);

      /* If this fails due to an IO error, XSync will call the IO
	 error handler.  */
      pselect (fd + 1, &fds, NULL, NULL, &timeout, NULL);

      /* Timeout elapsed.  */
      current_time = current_timespec ();
      if (timespec_cmp (target, current_time) < 0)
	return 1;
    }
}

/* Return the monotonic time corresponding to the high-resolution
   server timestamp TIMESTAMP.  Return 0 if the necessary information
   is not available.  */

static uint_fast64_t
x_sync_get_monotonic_time (struct x_display_info *dpyinfo,
			   uint_fast64_t timestamp)
{
  if (dpyinfo->server_time_monotonic_p)
    return timestamp;

  /* This means we haven't yet initialized the server time offset.  */
  if (!dpyinfo->server_time_offset)
    return 0;

  uint_fast64_t t;
  return ckd_sub (&t, timestamp, dpyinfo->server_time_offset) ? 0 : t;
}

# ifndef CLOCK_MONOTONIC
#  define CLOCK_MONOTONIC CLOCK_REALTIME
# endif

/* Return the current monotonic time in the same format as a
   high-resolution server timestamp, or 0 if not available.  */

static uint_fast64_t
x_sync_current_monotonic_time (void)
{
  struct timespec time;
  uint_fast64_t t;
  return (((clock_gettime (CLOCK_MONOTONIC, &time) != 0
	    && (CLOCK_MONOTONIC == CLOCK_REALTIME
		|| clock_gettime (CLOCK_REALTIME, &time) != 0))
	   || ckd_mul (&t, time.tv_sec, 1000000)
	   || ckd_add (&t, t, time.tv_nsec / 1000))
	  ? 0 : t);
}

/* Decode a _NET_WM_FRAME_DRAWN message and calculate the time it took
   to draw the last frame.  */

static void
x_sync_note_frame_times (struct x_display_info *dpyinfo,
			 struct frame *f, XEvent *event)
{
  uint_fast64_t low, high, time;
  struct x_output *output;

  low = event->xclient.data.l[2];
  high = event->xclient.data.l[3];
  output = FRAME_X_OUTPUT (f);

  time = x_sync_get_monotonic_time (dpyinfo, low | (high << 32));

  if (!time || !output->temp_frame_time
      || ckd_sub (&output->last_frame_time, time, output->temp_frame_time))
    output->last_frame_time = 0;

#ifdef FRAME_DEBUG
  uint_fast64_t last_frame_ms = output->last_frame_time / 1000;
  fprintf (stderr,
	   "Drawing the last frame took: %"PRIuFAST64" ms (%"PRIuFAST64")\n",
	   last_frame_ms, time);
#endif
}

static Bool
x_sync_is_frame_drawn_event (Display *dpy, XEvent *event,
			     XPointer user_data)
{
  struct frame *f;
  struct x_display_info *dpyinfo;

  f = (struct frame *) user_data;
  dpyinfo = FRAME_DISPLAY_INFO (f);

  if (event->type == ClientMessage
      && (event->xclient.message_type
	  == dpyinfo->Xatom_net_wm_frame_drawn)
      && event->xclient.window == FRAME_OUTER_WINDOW (f))
    return True;

  return False;
}

/* Wait for the compositing manager to finish drawing the last frame.
   If the compositing manager has already drawn everything, do
   nothing.  */

static void
x_sync_wait_for_frame_drawn_event (struct frame *f)
{
  XEvent event;
  struct x_display_info *dpyinfo;

  if (!FRAME_X_WAITING_FOR_DRAW (f)
      /* The compositing manager can't draw a frame if it is
	 unmapped.  */
      || !FRAME_VISIBLE_P (f))
    return;

  dpyinfo = FRAME_DISPLAY_INFO (f);

  /* Wait for the frame drawn message to arrive.  */
  if (x_if_event (FRAME_X_DISPLAY (f), &event,
		  x_sync_is_frame_drawn_event, (XPointer) f,
		  make_timespec (1, 0)))
    {
      /* The first time a draw hangs, treat it as a random fluctuation
	 on the part of the compositor.  If the next draw continues to
	 hang, disable frame synchronization.  */
      if (FRAME_X_DRAW_JUST_HUNG (f))
	{
	  fprintf (stderr, "Warning: compositing manager spent more than 1 "
		   "second drawing a frame.  Frame synchronization has "
		   "been disabled\n");
	  FRAME_X_OUTPUT (f)->use_vsync_p = false;

	  /* Remove the compositor bypass property from the outer
	     window.  */
	  XDeleteProperty (dpyinfo->display, FRAME_OUTER_WINDOW (f),
			   dpyinfo->Xatom_net_wm_bypass_compositor);

	  /* Also change the frame parameter to reflect the new
	     state.  */
	  store_frame_param (f, Quse_frame_synchronization, Qnil);
	}
      else
	{
	  fprintf (stderr, "Warning: compositing manager spent more than 1 "
		   "second drawing a frame.  Frame synchronization will be "
		   "disabled if this happens again\n");
	  FRAME_X_DRAW_JUST_HUNG (f) = true;
	}
    }
  else
    x_sync_note_frame_times (dpyinfo, f, &event);

  FRAME_X_WAITING_FOR_DRAW (f) = false;
}

/* Tell the compositing manager to postpone updates of F until a frame
   has finished drawing.  */

static void
x_sync_update_begin (struct frame *f)
{
  XSyncValue value, add;
  Bool overflow;

  if (FRAME_X_EXTENDED_COUNTER (f) == None)
    return;

  value = FRAME_X_COUNTER_VALUE (f);

  if (FRAME_X_OUTPUT (f)->ext_sync_end_pending_p)
    {
      FRAME_X_COUNTER_VALUE (f)
	= FRAME_X_OUTPUT (f)->resize_counter_value;

      value = FRAME_X_COUNTER_VALUE (f);

      if (XSyncValueLow32 (value) % 2)
	{
	  XSyncIntToValue (&add, 1);
	  XSyncValueAdd (&value, value, add, &overflow);

	  if (overflow)
	    XSyncIntToValue (&value, 0);
	}

      FRAME_X_OUTPUT (f)->ext_sync_end_pending_p = false;
    }

  /* Since a frame is already in progress, there is no point in
     continuing.  */
  if (XSyncValueLow32 (value) % 2)
    return;

  /* Wait for the last frame to be drawn before drawing this one.  */
  x_sync_wait_for_frame_drawn_event (f);

  /* Make a note of the time at which we started to draw this
     frame.  */
  FRAME_X_OUTPUT (f)->temp_frame_time = x_sync_current_monotonic_time ();

  /* Since Emacs needs a non-urgent redraw, ensure that value % 4 ==
     1.  Later, add 3 to create the even counter value.  */
  if (XSyncValueLow32 (value) % 4 == 2)
    XSyncIntToValue (&add, 3);
  else
    XSyncIntToValue (&add, 1);

  XSyncValueAdd (&FRAME_X_COUNTER_VALUE (f),
		 value, add, &overflow);

  if (overflow)
    XSyncIntToValue (&FRAME_X_COUNTER_VALUE (f), 3);

  eassert (XSyncValueLow32 (FRAME_X_COUNTER_VALUE (f)) % 4 == 1);

  XSyncSetCounter (FRAME_X_DISPLAY (f),
		   FRAME_X_EXTENDED_COUNTER (f),
		   FRAME_X_COUNTER_VALUE (f));
}

#ifdef HAVE_XSYNCTRIGGERFENCE

/* Trigger the sync fence for counter VALUE immediately before a frame
   finishes.  */

static void
x_sync_trigger_fence (struct frame *f, XSyncValue value)
{
  uint_fast64_t n, low, high, idx;

  /* Sync fences aren't supported by the X server.  */
  if (FRAME_DISPLAY_INFO (f)->xsync_major < 3
      || (FRAME_DISPLAY_INFO (f)->xsync_major == 3
	  && FRAME_DISPLAY_INFO (f)->xsync_minor < 1))
    return;

  low = XSyncValueLow32 (value);
  high = XSyncValueHigh32 (value);

  n = low | (high << 32);
  idx = (n / 4) % 2;

#ifdef FRAME_DEBUG
  fprintf (stderr, "Triggering synchronization fence: %lu\n", idx);
#endif

  XSyncTriggerFence (FRAME_X_DISPLAY (f),
		     FRAME_X_OUTPUT (f)->sync_fences[idx]);
}

/* Initialize the sync fences on F.  */

void
x_sync_init_fences (struct frame *f)
{
  struct x_output *output;
  struct x_display_info *dpyinfo;

  output = FRAME_X_OUTPUT (f);
  dpyinfo = FRAME_DISPLAY_INFO (f);

  /* Sync fences aren't supported by the X server.  */
  if (dpyinfo->xsync_major < 3
      || (dpyinfo->xsync_major == 3
	  && dpyinfo->xsync_minor < 1))
    return;

  /* Suppress errors around XSyncCreateFence requests, since its
     implementations on certain X servers erroneously reject valid
     drawables, such as the frame's inner window.  (bug#69762) */

  x_catch_errors (dpyinfo->display);
  output->sync_fences[0]
    = XSyncCreateFence (FRAME_X_DISPLAY (f),
			/* The drawable given below is only used to
			   determine the screen on which the fence is
			   created.  */
			FRAME_X_WINDOW (f),
			False);
  output->sync_fences[1]
    = XSyncCreateFence (FRAME_X_DISPLAY (f),
			FRAME_X_WINDOW (f),
			False);
  if (x_had_errors_p (dpyinfo->display))
    output->sync_fences[1] = output->sync_fences[0] = None;
  x_uncatch_errors_after_check ();

  XChangeProperty (FRAME_X_DISPLAY (f), FRAME_OUTER_WINDOW (f),
		   dpyinfo->Xatom_net_wm_sync_fences, XA_CARDINAL,
		   32, PropModeReplace,
		   (unsigned char *) &output->sync_fences, 2);
}

static void
x_sync_free_fences (struct frame *f)
{
  if (FRAME_X_OUTPUT (f)->sync_fences[0] != None)
    XSyncDestroyFence (FRAME_X_DISPLAY (f),
		       FRAME_X_OUTPUT (f)->sync_fences[0]);

  if (FRAME_X_OUTPUT (f)->sync_fences[1] != None)
    XSyncDestroyFence (FRAME_X_DISPLAY (f),
		       FRAME_X_OUTPUT (f)->sync_fences[1]);
}

#endif

/* Tell the compositing manager that FRAME has been drawn and can be
   updated.  */

static void
x_sync_update_finish (struct frame *f)
{
  XSyncValue value, add;
  Bool overflow;

  if (FRAME_X_EXTENDED_COUNTER (f) == None)
    return;

  value = FRAME_X_COUNTER_VALUE (f);

  if (!(XSyncValueLow32 (value) % 2))
    return;

  if ((XSyncValueLow32 (value) % 4) == 1)
    /* This means the frame is non-urgent and should be drawn at the
       next redraw point.  */
    XSyncIntToValue (&add, 3);
  else
    /* Otherwise, the frame is urgent and should be drawn as soon as
       possible.  */
    XSyncIntToValue (&add, 1);

  XSyncValueAdd (&FRAME_X_COUNTER_VALUE (f),
		 value, add, &overflow);

  if (overflow)
    XSyncIntToValue (&FRAME_X_COUNTER_VALUE (f), 0);

  /* Trigger any sync fences if necessary.  */
#ifdef HAVE_XSYNCTRIGGERFENCE
  x_sync_trigger_fence (f, FRAME_X_COUNTER_VALUE (f));
#endif

  XSyncSetCounter (FRAME_X_DISPLAY (f),
		   FRAME_X_EXTENDED_COUNTER (f),
		   FRAME_X_COUNTER_VALUE (f));

  if (FRAME_OUTPUT_DATA (f)->use_vsync_p)
    FRAME_X_WAITING_FOR_DRAW (f) = true;
}

/* Handle a _NET_WM_FRAME_DRAWN message from the compositor.  */

static void
x_sync_handle_frame_drawn (struct x_display_info *dpyinfo,
			   XEvent *message, struct frame *f)
{
  XSyncValue value, counter;

  if (FRAME_OUTER_WINDOW (f) == message->xclient.window)
    {
      counter = FRAME_X_COUNTER_VALUE (f);

      /* Check that the counter in the message is the same as the
	 counter in the frame.  */
      XSyncIntsToValue (&value,
			message->xclient.data.l[0] & 0xffffffff,
			message->xclient.data.l[1] & 0xffffffff);

      if (XSyncValueEqual (value, counter))
	FRAME_X_WAITING_FOR_DRAW (f) = false;

      /* As long as a _NET_WM_FRAME_DRAWN message arrives, we know
	 that the compositor is still sending events, so avoid timing
	 out.  */
      FRAME_X_DRAW_JUST_HUNG (f) = false;
    }

  x_sync_note_frame_times (dpyinfo, f, message);
}
#endif

/* Start an update of frame F.  This function is installed as a hook
   for update_begin, i.e. it is called when update_begin is called.
   This function is called prior to calls to gui_update_window_begin for
   each window being updated.  Currently, there is nothing to do here
   because all interesting stuff is done on a window basis.  */

static void
x_update_begin (struct frame *f)
{
#if defined HAVE_XSYNC && !defined USE_GTK && defined HAVE_CLOCK_GETTIME
  /* If F is double-buffered, we can make the entire frame center
     around XdbeSwapBuffers.  */
#ifdef HAVE_XDBE
  if (!FRAME_X_DOUBLE_BUFFERED_P (f))
#endif
    x_sync_update_begin (f);
#else
  /* Nothing to do.  */
#endif

#ifdef HAVE_XDBE
  if (FRAME_X_DOUBLE_BUFFERED_P (f))
    /* The frame is no longer complete, as it is in the midst of an
       update.  */
    FRAME_X_COMPLETE_P (f) = false;
#endif
}

/* Draw a vertical window border from (x,y0) to (x,y1)  */

static void
x_draw_vertical_window_border (struct window *w, int x, int y0, int y1)
{
  struct frame *f = XFRAME (WINDOW_FRAME (w));
  struct face *face;

  face = FACE_FROM_ID_OR_NULL (f, VERTICAL_BORDER_FACE_ID);
  if (face)
    XSetForeground (FRAME_X_DISPLAY (f), f->output_data.x->normal_gc,
		    face->foreground);

#ifdef USE_CAIRO
  x_fill_rectangle (f, f->output_data.x->normal_gc, x, y0, 1, y1 - y0, false);
#else
  XDrawLine (FRAME_X_DISPLAY (f), FRAME_X_DRAWABLE (f),
	     f->output_data.x->normal_gc, x, y0, x, y1);
#endif
}

/* Draw a window divider from (x0,y0) to (x1,y1)  */

static void
x_draw_window_divider (struct window *w, int x0, int x1, int y0, int y1)
{
  struct frame *f = XFRAME (WINDOW_FRAME (w));
  struct face *face = FACE_FROM_ID_OR_NULL (f, WINDOW_DIVIDER_FACE_ID);
  struct face *face_first
    = FACE_FROM_ID_OR_NULL (f, WINDOW_DIVIDER_FIRST_PIXEL_FACE_ID);
  struct face *face_last
    = FACE_FROM_ID_OR_NULL (f, WINDOW_DIVIDER_LAST_PIXEL_FACE_ID);
  unsigned long color = face ? face->foreground : FRAME_FOREGROUND_PIXEL (f);
  unsigned long color_first = (face_first
			       ? face_first->foreground
			       : FRAME_FOREGROUND_PIXEL (f));
  unsigned long color_last = (face_last
			      ? face_last->foreground
			      : FRAME_FOREGROUND_PIXEL (f));
  Display *display = FRAME_X_DISPLAY (f);

  if ((y1 - y0 > x1 - x0) && (x1 - x0 >= 3))
    /* A vertical divider, at least three pixels wide: Draw first and
       last pixels differently.  */
    {
      XSetForeground (display, f->output_data.x->normal_gc, color_first);
      x_fill_rectangle (f, f->output_data.x->normal_gc,
			x0, y0, 1, y1 - y0, false);
      XSetForeground (display, f->output_data.x->normal_gc, color);
      x_fill_rectangle (f, f->output_data.x->normal_gc,
			x0 + 1, y0, x1 - x0 - 2, y1 - y0, false);
      XSetForeground (display, f->output_data.x->normal_gc, color_last);
      x_fill_rectangle (f, f->output_data.x->normal_gc,
			x1 - 1, y0, 1, y1 - y0, false);
    }
  else if ((x1 - x0 > y1 - y0) && (y1 - y0 >= 3))
    /* A horizontal divider, at least three pixels high: Draw first and
       last pixels differently.  */
    {
      XSetForeground (display, f->output_data.x->normal_gc, color_first);
      x_fill_rectangle (f, f->output_data.x->normal_gc,
			x0, y0, x1 - x0, 1, false);
      XSetForeground (display, f->output_data.x->normal_gc, color);
      x_fill_rectangle (f, f->output_data.x->normal_gc,
			x0, y0 + 1, x1 - x0, y1 - y0 - 2, false);
      XSetForeground (display, f->output_data.x->normal_gc, color_last);
      x_fill_rectangle (f, f->output_data.x->normal_gc,
			x0, y1 - 1, x1 - x0, 1, false);
    }
  else
    {
    /* In any other case do not draw the first and last pixels
       differently.  */
      XSetForeground (display, f->output_data.x->normal_gc, color);
      x_fill_rectangle (f, f->output_data.x->normal_gc,
			x0, y0, x1 - x0, y1 - y0, false);
    }
}

#ifdef HAVE_XDBE

/* Show the frame back buffer.  If frame is double-buffered,
   atomically publish to the user's screen graphics updates made since
   the last call to show_back_buffer.  */

static void
show_back_buffer (struct frame *f)
{
  XdbeSwapInfo swap_info;
#ifdef USE_CAIRO
  cairo_t *cr;
#endif

  if (FRAME_X_DOUBLE_BUFFERED_P (f))
    {
#if defined HAVE_XSYNC && !defined USE_GTK && defined HAVE_CLOCK_GETTIME
      /* Wait for drawing of the previous frame to complete before
	 displaying this new frame.  */
      x_sync_wait_for_frame_drawn_event (f);

      /* Begin a new frame.  */
      x_sync_update_begin (f);
#endif

#ifdef USE_CAIRO
      cr = FRAME_CR_CONTEXT (f);
      if (cr)
	cairo_surface_flush (cairo_get_target (cr));
#endif
      memset (&swap_info, 0, sizeof (swap_info));
      swap_info.swap_window = FRAME_X_WINDOW (f);
      swap_info.swap_action = XdbeCopied;
      XdbeSwapBuffers (FRAME_X_DISPLAY (f), &swap_info, 1);

#if defined HAVE_XSYNC && !defined USE_GTK && defined HAVE_CLOCK_GETTIME
      /* Finish the frame here.  */
      x_sync_update_finish (f);
#endif
    }

  FRAME_X_NEED_BUFFER_FLIP (f) = false;
}

#endif

/* Updates back buffer and flushes changes to display.  Called from
   minibuf read code.  Note that we display the back buffer even if
   buffer flipping is blocked.  */
static void
x_flip_and_flush (struct frame *f)
{
  /* Flipping buffers requires a working connection to the X server,
     which isn't always present if `inhibit-redisplay' is t, since
     this can be called from the IO error handler.  */
  if (!NILP (Vinhibit_redisplay)
      /* This has to work for tooltip frames, however, and redisplay
	 cannot happen when they are being flushed anyway.  (bug#55519) */
      && !FRAME_TOOLTIP_P (f))
    return;

  block_input ();
#ifdef HAVE_XDBE
  if (FRAME_X_NEED_BUFFER_FLIP (f))
    show_back_buffer (f);

  /* The frame is complete again as its contents were just
     flushed.  */
  FRAME_X_COMPLETE_P (f) = true;
#endif
  x_flush (f);
  unblock_input ();
}

/* End update of frame F.  This function is installed as a hook in
   update_end.  */

static void
x_update_end (struct frame *f)
{
  /* Mouse highlight may be displayed again.  */
  MOUSE_HL_INFO (f)->mouse_face_defer = false;

#ifdef USE_CAIRO
# ifdef HAVE_XDBE
  if (!FRAME_X_DOUBLE_BUFFERED_P (f) && FRAME_CR_CONTEXT (f))
    cairo_surface_flush (cairo_get_target (FRAME_CR_CONTEXT (f)));
# endif
#endif

  /* If double buffering is disabled, finish the update here.
     Otherwise, finish the update when the back buffer is next
     displayed.  */
#if defined HAVE_XSYNC && !defined USE_GTK && defined HAVE_CLOCK_GETTIME
#ifdef HAVE_XDBE
  if (!FRAME_X_DOUBLE_BUFFERED_P (f))
#endif
    x_sync_update_finish (f);
#endif
}

/* This function is called from various places in xdisp.c
   whenever a complete update has been performed.  */

static void
XTframe_up_to_date (struct frame *f)
{
#if defined HAVE_XSYNC && defined HAVE_GTK3
  GtkWidget *widget;
  GdkWindow *window;
  GdkFrameClock *clock;
#endif

  eassert (FRAME_X_P (f));
  block_input ();
  FRAME_MOUSE_UPDATE (f);

#ifdef HAVE_XDBE
  if (!buffer_flipping_blocked_p ()
      && FRAME_X_NEED_BUFFER_FLIP (f))
    show_back_buffer (f);

  /* The frame is now complete, as its contents have been drawn.  */
  FRAME_X_COMPLETE_P (f) = true;
#endif

#ifdef HAVE_XSYNC
#ifndef HAVE_GTK3
  if (FRAME_X_OUTPUT (f)->sync_end_pending_p
      && FRAME_X_BASIC_COUNTER (f) != None)
    {
      XSyncSetCounter (FRAME_X_DISPLAY (f),
		       FRAME_X_BASIC_COUNTER (f),
		       FRAME_X_OUTPUT (f)->pending_basic_counter_value);
      FRAME_X_OUTPUT (f)->sync_end_pending_p = false;
    }
#else
  if (FRAME_X_OUTPUT (f)->xg_sync_end_pending_p)
    {
      widget = FRAME_GTK_OUTER_WIDGET (f);
      window = gtk_widget_get_window (widget);
      eassert (window);
      clock = gdk_window_get_frame_clock (window);
      eassert (clock);

      gdk_frame_clock_request_phase (clock,
				     GDK_FRAME_CLOCK_PHASE_AFTER_PAINT);
      FRAME_X_OUTPUT (f)->xg_sync_end_pending_p = false;
    }
#endif
#endif
  unblock_input ();
}

#ifdef HAVE_XDBE
static void
XTbuffer_flipping_unblocked_hook (struct frame *f)
{
  block_input ();

  if (FRAME_X_NEED_BUFFER_FLIP (f))
    show_back_buffer (f);

  unblock_input ();
}
#endif

\f

/**
 * x_clear_under_internal_border:
 *
 * Clear area of frame F's internal border.  If the internal border face
 * of F has been specified (is not null), fill the area with that face.
 */
void
x_clear_under_internal_border (struct frame *f)
{
  if (FRAME_INTERNAL_BORDER_WIDTH (f) > 0)
    {
      int border = FRAME_INTERNAL_BORDER_WIDTH (f);
      int width = FRAME_PIXEL_WIDTH (f);
      int height = FRAME_PIXEL_HEIGHT (f);
      int margin = FRAME_TOP_MARGIN_HEIGHT (f);
      int bottom_margin = FRAME_BOTTOM_MARGIN_HEIGHT (f);
      int face_id = (FRAME_PARENT_FRAME (f)
		     ? (!NILP (Vface_remapping_alist)
			? lookup_basic_face (NULL, f,
					     CHILD_FRAME_BORDER_FACE_ID)
			: CHILD_FRAME_BORDER_FACE_ID)
		     : (!NILP (Vface_remapping_alist)
			? lookup_basic_face (NULL, f,
					     INTERNAL_BORDER_FACE_ID)
			: INTERNAL_BORDER_FACE_ID));
      struct face *face = FACE_FROM_ID_OR_NULL (f, face_id);

      if (face)
	{
	  unsigned long color = face->background;
	  Display *display = FRAME_X_DISPLAY (f);
	  GC gc = f->output_data.x->normal_gc;

	  XSetForeground (display, gc, color);
	  x_fill_rectangle (f, gc, 0, margin, width, border, false);
	  x_fill_rectangle (f, gc, 0, 0, border, height, false);
	  x_fill_rectangle (f, gc, width - border, 0, border, height, false);
	  x_fill_rectangle (f, gc, 0, height - bottom_margin - border,
			    width, border, false);
	  XSetForeground (display, gc, FRAME_FOREGROUND_PIXEL (f));
	}
      else
	{
	  x_clear_area (f, 0, 0, border, height);
	  x_clear_area (f, 0, margin, width, border);
	  x_clear_area (f, width - border, 0, border, height);
	  x_clear_area (f, 0, height - bottom_margin - border,
			width, border);
	}
    }
}

/* Draw truncation mark bitmaps, continuation mark bitmaps, overlay
   arrow bitmaps, or clear the fringes if no bitmaps are required
   before DESIRED_ROW is made current.  This function is called from
   update_window_line only if it is known that there are differences
   between bitmaps to be drawn between current row and DESIRED_ROW.  */

static void
x_after_update_window_line (struct window *w, struct glyph_row *desired_row)
{
  eassert (w);

  if (!desired_row->mode_line_p && !w->pseudo_window_p)
    desired_row->redraw_fringe_bitmaps_p = true;

#ifdef USE_X_TOOLKIT
  /* When a window has disappeared, make sure that no rest of
     full-width rows stays visible in the internal border.  Could
     check here if updated window is the leftmost/rightmost window,
     but I guess it's not worth doing since vertically split windows
     are almost never used, internal border is rarely set, and the
     overhead is very small.  */
  {
    struct frame *f;
    int width, height;

    if (windows_or_buffers_changed
	&& desired_row->full_width_p
	&& (f = XFRAME (w->frame),
	    width = FRAME_INTERNAL_BORDER_WIDTH (f),
	    width != 0)
	&& (height = desired_row->visible_height,
	    height > 0))
      {
	int y = WINDOW_TO_FRAME_PIXEL_Y (w, max (0, desired_row->y));
	int face_id =
	  (FRAME_PARENT_FRAME (f)
	   ? (!NILP (Vface_remapping_alist)
	      ? lookup_basic_face (NULL, f, CHILD_FRAME_BORDER_FACE_ID)
	      : CHILD_FRAME_BORDER_FACE_ID)
	   : (!NILP (Vface_remapping_alist)
	      ? lookup_basic_face (NULL, f, INTERNAL_BORDER_FACE_ID)
	      : INTERNAL_BORDER_FACE_ID));
	struct face *face = FACE_FROM_ID_OR_NULL (f, face_id);

	if (face)
	  {
	    unsigned long color = face->background;
	    Display *display = FRAME_X_DISPLAY (f);
	    GC gc = f->output_data.x->normal_gc;

	    XSetForeground (display, gc, color);
	    x_fill_rectangle (f, gc, 0, y, width, height, true);
	    x_fill_rectangle (f, gc, FRAME_PIXEL_WIDTH (f) - width, y,
			      width, height, true);
	    XSetForeground (display, gc, FRAME_FOREGROUND_PIXEL (f));
	  }
	else
	  {
	    x_clear_area (f, 0, y, width, height);
	    x_clear_area (f, FRAME_PIXEL_WIDTH (f) - width, y, width, height);
	  }
      }
  }
#endif
}

/* Generate a premultiplied pixel value for COLOR with ALPHA applied
   on the given display.  COLOR will be modified.  The display must
   use a visual that supports an alpha channel.

   This is possibly dead code on builds which do not support
   XRender.  */

#ifndef USE_CAIRO

static unsigned long
x_premultiply_pixel (struct x_display_info *dpyinfo,
		     XColor *color, double alpha)
{
  unsigned long pixel;

  eassert (dpyinfo->alpha_bits);

  /* Multiply the RGB channels.  */
  color->red *= alpha;
  color->green *= alpha;
  color->blue *= alpha;

  /* First, allocate a fully opaque pixel.  */
  pixel = x_make_truecolor_pixel (dpyinfo, color->red,
				  color->green,
				  color->blue);

  /* Next, erase the alpha component.  */
  pixel &= ~dpyinfo->alpha_mask;

  /* And add an alpha channel.  */
  pixel |= (((unsigned long) (alpha * 65535)
	     >> (16 - dpyinfo->alpha_bits))
	    << dpyinfo->alpha_offset);

  return pixel;
}

#endif

static void
x_draw_fringe_bitmap (struct window *w, struct glyph_row *row,
		      struct draw_fringe_bitmap_params *p)
{
  struct frame *f = XFRAME (WINDOW_FRAME (w));
  Display *display = FRAME_X_DISPLAY (f);
  GC gc = f->output_data.x->normal_gc;
  struct face *face = p->face;
  XRectangle clip_rect;

  /* Must clip because of partially visible lines.  */
  x_clip_to_row (w, row, ANY_AREA, gc, &clip_rect);

  if (p->bx >= 0 && !p->overlay_p)
    {
      /* In case the same realized face is used for fringes and
	 for something displayed in the text (e.g. face `region' on
	 mono-displays, the fill style may have been changed to
	 FillSolid in x_draw_glyph_string_background.  */
      if (face->stipple)
	{
	  XSetFillStyle (display, face->gc, FillOpaqueStippled);
	  x_fill_rectangle (f, face->gc, p->bx, p->by, p->nx, p->ny,
			    true);
	  XSetFillStyle (display, face->gc, FillSolid);

	  row->stipple_p = true;
	}
      else
	{
	  XSetBackground (display, face->gc, face->background);
	  x_clear_rectangle (f, face->gc, p->bx, p->by, p->nx, p->ny,
			   true);
	  XSetForeground (display, face->gc, face->foreground);
	}
    }

#ifdef USE_CAIRO
  if (p->which
      && p->which < max_fringe_bmp
      && p->which < max_used_fringe_bitmap)
    {
      XGCValues gcv;

      XGetGCValues (display, gc, GCForeground | GCBackground, &gcv);
      XSetForeground (display, gc, (p->cursor_p
				    ? (p->overlay_p ? face->background
				       : f->output_data.x->cursor_pixel)
				    : face->foreground));
      XSetBackground (display, gc, face->background);
      if (!fringe_bmp[p->which])
	{
	  /* This fringe bitmap is known to fringe.c, but lacks the
	     cairo_pattern_t pattern which shadows that bitmap.  This
	     is typical to define-fringe-bitmap being called when the
	     selected frame was not a GUI frame, for example, when
	     packages that define fringe bitmaps are loaded by a
	     daemon Emacs.  Create the missing pattern now.  */
	  gui_define_fringe_bitmap (f, p->which);
	}
      x_cr_draw_image (f, gc, fringe_bmp[p->which], 0, p->dh,
		       p->wd, p->h, p->x, p->y, p->overlay_p);
      XSetForeground (display, gc, gcv.foreground);
      XSetBackground (display, gc, gcv.background);
    }
#else  /* not USE_CAIRO */
  if (p->which)
    {
      Drawable drawable = FRAME_X_DRAWABLE (f);
      char *bits;
      Pixmap pixmap, clipmask = None;
      int depth = FRAME_DISPLAY_INFO (f)->n_planes;
      XGCValues gcv;
      unsigned long background = face->background;
      XColor bg;
#ifdef HAVE_XRENDER
      Picture picture = None;
      XRenderPictureAttributes attrs;

      memset (&attrs, 0, sizeof attrs);
#endif
      XRectangle image_rect, dest;
      int px, py, pwidth, pheight;

      /* Intersect the destination rectangle with that of the row.
	 Setting a clip mask overrides the clip rectangles provided by
	 x_clip_to_row, so clipping must be performed by hand.  */

      image_rect.x = p->x;
      image_rect.y = p->y;
      image_rect.width = p->wd;
      image_rect.height = p->h;

      if (!gui_intersect_rectangles (&clip_rect, &image_rect, &dest))
	/* The entire destination rectangle falls outside the row.  */
	goto undo_clip;

      /* Extrapolate the source rectangle from the difference between
	 the destination and image rectangles.  */

      px = dest.x - image_rect.x;
      py = dest.y - image_rect.y;
      pwidth = dest.width;
      pheight = dest.height;

      if (p->wd > 8)
	bits = (char *) (p->bits + p->dh);
      else
	bits = (char *) p->bits + p->dh;

      if (FRAME_DISPLAY_INFO (f)->alpha_bits
	  && f->alpha_background < 1.0)
	{
	  /* Extend the background color with an alpha channel
	     according to f->alpha_background.  */
	  bg.pixel = background;
	  x_query_colors (f, &bg, 1);

	  background
	    = x_premultiply_pixel (FRAME_DISPLAY_INFO (f),
				   &bg,
				   f->alpha_background);
	}

      /* Draw the bitmap.  I believe these small pixmaps can be cached
	 by the server.  */
      pixmap = XCreatePixmapFromBitmapData (display, drawable, bits, p->wd, p->h,
					    (p->cursor_p
					     ? (p->overlay_p ? face->background
						: f->output_data.x->cursor_pixel)
					     : face->foreground),
					    background, depth);

#ifdef HAVE_XRENDER
      if (FRAME_X_PICTURE_FORMAT (f)
	  && (x_xr_ensure_picture (f), FRAME_X_PICTURE (f)))
	picture = XRenderCreatePicture (display, pixmap,
					FRAME_X_PICTURE_FORMAT (f),
					0, &attrs);
#endif

      if (p->overlay_p)
	{
	  clipmask = XCreatePixmapFromBitmapData (display,
						  FRAME_DISPLAY_INFO (f)->root_window,
						  bits, p->wd, p->h,
						  1, 0, 1);

#ifdef HAVE_XRENDER
	  if (picture != None)
	    {
	      attrs.clip_mask = clipmask;
	      attrs.clip_x_origin = p->x;
	      attrs.clip_y_origin = p->y;

	      XRenderChangePicture (display, FRAME_X_PICTURE (f),
				    CPClipMask | CPClipXOrigin | CPClipYOrigin,
				    &attrs);
	    }
	  else
#endif
	    {
	      gcv.clip_mask = clipmask;
	      gcv.clip_x_origin = p->x;
	      gcv.clip_y_origin = p->y;
	      XChangeGC (display, gc, GCClipMask | GCClipXOrigin | GCClipYOrigin, &gcv);
	    }
	}

#ifdef HAVE_XRENDER
      if (picture != None)
	{
	  x_xr_apply_ext_clip (f, gc);
	  XRenderComposite (display, PictOpSrc, picture,
			    None, FRAME_X_PICTURE (f),
			    px, py, px, py, dest.x, dest.y,
			    pwidth, pheight);
	  x_xr_reset_ext_clip (f);

	  XRenderFreePicture (display, picture);
	}
      else
#endif
	XCopyArea (display, pixmap, drawable, gc, px, py,
		   pwidth, pheight, dest.x, dest.y);
      XFreePixmap (display, pixmap);

      if (p->overlay_p)
	{
	  gcv.clip_mask = (Pixmap) 0;
	  XChangeGC (display, gc, GCClipMask, &gcv);
	  XFreePixmap (display, clipmask);
	}
    }

  undo_clip:
#endif  /* not USE_CAIRO */

  x_reset_clip_rectangles (f, gc);
}

/***********************************************************************
			    Glyph display
 ***********************************************************************/

static bool x_alloc_lighter_color (struct frame *, Display *, Colormap,
				   unsigned long *, double, int);
static void x_scroll_bar_clear (struct frame *);

#ifdef GLYPH_DEBUG
static void x_check_font (struct frame *, struct font *);
#endif

/* If SEND_EVENT, make sure that TIME is larger than the current last
   user time.  We don't sanitize timestamps from events sent by the X
   server itself because some Lisp might have set the user time to a
   ridiculously large value, and this way a more reasonable timestamp
   can be obtained upon the next event.

   Alternatively, the server time could've overflowed.

   SET_PROPERTY specifies whether or not to change the user time
   property for the active frame.  The important thing is to not set
   the last user time upon leave events; on Metacity and GNOME Shell,
   mapping a new frame on top of the old frame potentially causes
   crossing events to be sent to the old frame if it contains the
   pointer, as the new frame will initially stack above the old frame.
   If _NET_WM_USER_TIME is changed at that point, then GNOME may get
   notified about the user time change on the old frame before it
   tries to focus the new frame, which will make it consider the new
   frame (whose user time property will not have been updated at that
   point, due to not being focused) as having been mapped
   out-of-order, and lower the new frame, which is typically not what
   users want.  */

static void
x_display_set_last_user_time (struct x_display_info *dpyinfo, Time time,
			      bool send_event, bool set_property)
{
#if defined HAVE_XSYNC && !defined USE_GTK && defined HAVE_CLOCK_GETTIME
  uint_fast64_t monotonic_time;
  uint_fast64_t monotonic_ms;
  int_fast64_t diff_ms;
#endif
#ifndef USE_GTK
  struct frame *focus_frame;
  Time old_time;

  focus_frame = dpyinfo->x_focus_frame;
  old_time = dpyinfo->last_user_time;
#endif

#ifdef ENABLE_CHECKING
  eassert (time <= X_ULONG_MAX);
#endif

  if (!send_event || time > dpyinfo->last_user_time)
    dpyinfo->last_user_time = time;

#if defined HAVE_XSYNC && !defined USE_GTK && defined HAVE_CLOCK_GETTIME
  if (!send_event)
    {
      /* See if the current CLOCK_MONOTONIC time is reasonably close
	 to the X server time.  */
      monotonic_time = x_sync_current_monotonic_time ();
      monotonic_ms = monotonic_time / 1000;

      dpyinfo->server_time_monotonic_p
	= (monotonic_time != 0
	   && !ckd_sub (&diff_ms, time, monotonic_ms)
	   && -500 < diff_ms && diff_ms < 500);

      if (!dpyinfo->server_time_monotonic_p)
	{
	  /* Compute an offset that can be subtracted from the server
	     time to estimate the monotonic time on the X server.  */

	  if (!monotonic_time
	      || ckd_mul (&dpyinfo->server_time_offset, time, 1000)
	      || ckd_sub (&dpyinfo->server_time_offset,
			  dpyinfo->server_time_offset, monotonic_time))
	    dpyinfo->server_time_offset = 0;

	  /* If the server time is reasonably close to the monotonic
	     time after the latter is truncated to CARD32, simply make
	     the offset that between the server time in ms and the
	     actual time in ms.  */

	  monotonic_ms = monotonic_ms & 0xffffffff;
	  if (!ckd_sub (&diff_ms, time, monotonic_ms)
	      && -500 < diff_ms && diff_ms < 500)
	    {
	      /* The server timestamp overflowed.  Make the time
		 offset exactly how much it overflowed by.  */

	      if (ckd_sub (&dpyinfo->server_time_offset,
			   monotonic_time / 1000, monotonic_ms)
		  || ckd_mul (&dpyinfo->server_time_offset,
			      dpyinfo->server_time_offset, 1000)
		  || ckd_sub (&dpyinfo->server_time_offset,
			      0, dpyinfo->server_time_offset))
		dpyinfo->server_time_offset = 0;
	    }
	}
    }
#endif

#ifndef USE_GTK
  /* Don't waste bandwidth if the time hasn't actually changed.  */
  if (focus_frame && old_time != dpyinfo->last_user_time
      && set_property)
    {
      time = dpyinfo->last_user_time;

      while (FRAME_PARENT_FRAME (focus_frame))
	focus_frame = FRAME_PARENT_FRAME (focus_frame);

      if (FRAME_X_OUTPUT (focus_frame)->user_time_window != None)
	XChangeProperty (dpyinfo->display,
			 FRAME_X_OUTPUT (focus_frame)->user_time_window,
			 dpyinfo->Xatom_net_wm_user_time,
			 XA_CARDINAL, 32, PropModeReplace,
			 (unsigned char *) &time, 1);
    }
#endif
}

#ifdef USE_GTK

static void
x_set_gtk_user_time (struct frame *f, Time time)
{
  GtkWidget *widget;
  GdkWindow *window;

  widget = FRAME_GTK_OUTER_WIDGET (f);
  window = gtk_widget_get_window (widget);

  /* This widget isn't realized yet.  */
  if (!window)
    return;

  gdk_x11_window_set_user_time (window, time);
}

#endif

#if !defined USE_GTK || defined HAVE_XFIXES

/* Create and return a special window for receiving events such as
   selection notify events, and reporting user time.  The window is an
   1x1 unmapped override-redirect InputOnly window at -1, -1 relative
   to the parent, which should prevent it from doing anything.  */

static Window
x_create_special_window (struct x_display_info *dpyinfo,
			 Window parent_window)
{
  XSetWindowAttributes attrs;

  attrs.override_redirect = True;

  return XCreateWindow (dpyinfo->display, parent_window,
			-1, -1, 1, 1, 0, CopyFromParent, InputOnly,
			CopyFromParent, CWOverrideRedirect, &attrs);
}

#endif

/* Not needed on GTK because GTK handles reporting the user time
   itself.  */

#ifndef USE_GTK

static void
x_update_frame_user_time_window (struct frame *f)
{
  struct x_output *output;
  struct x_display_info *dpyinfo;

  output = FRAME_X_OUTPUT (f);
  dpyinfo = FRAME_DISPLAY_INFO (f);

  if (!NILP (Vx_no_window_manager)
      || !x_wm_supports (f, dpyinfo->Xatom_net_wm_user_time))
    {
      if (output->user_time_window != None
	  && output->user_time_window != FRAME_OUTER_WINDOW (f))
	{
	  XDestroyWindow (dpyinfo->display, output->user_time_window);
	  XDeleteProperty (dpyinfo->display, FRAME_OUTER_WINDOW (f),
			   dpyinfo->Xatom_net_wm_user_time_window);
	}
      else
	XDeleteProperty (dpyinfo->display, FRAME_OUTER_WINDOW (f),
			 dpyinfo->Xatom_net_wm_user_time);

      output->user_time_window = None;
      return;
    }

  if (!x_wm_supports (f, dpyinfo->Xatom_net_wm_user_time_window))
    {
      if (output->user_time_window == None)
	output->user_time_window = FRAME_OUTER_WINDOW (f);
      else if (output->user_time_window != FRAME_OUTER_WINDOW (f))
	{
	  XDestroyWindow (dpyinfo->display,
			  output->user_time_window);
	  XDeleteProperty (dpyinfo->display,
			   FRAME_OUTER_WINDOW (f),
			   dpyinfo->Xatom_net_wm_user_time_window);
	  output->user_time_window = FRAME_OUTER_WINDOW (f);
	}
    }
  else
    {
      if (output->user_time_window == FRAME_OUTER_WINDOW (f)
	  || output->user_time_window == None)
	{
	  /* Create a "user time" window that is used to report user
	     activity on a given frame.  This is used in preference to
	     _NET_WM_USER_TIME, as using a separate window allows the
	     window manager to express interest in other properties
	     while only reading the user time when necessary, thereby
	     improving battery life by not involving the window
	     manager in each key press.  */

	  output->user_time_window
	    = x_create_special_window (dpyinfo, FRAME_X_WINDOW (f));

	  XDeleteProperty (dpyinfo->display, FRAME_OUTER_WINDOW (f),
			   dpyinfo->Xatom_net_wm_user_time);
	  XChangeProperty (dpyinfo->display, FRAME_OUTER_WINDOW (f),
			   dpyinfo->Xatom_net_wm_user_time_window,
			   XA_WINDOW, 32, PropModeReplace,
			   (unsigned char *) &output->user_time_window, 1);
	}
    }
}

#endif

void
x_set_last_user_time_from_lisp (struct x_display_info *dpyinfo,
				Time time)
{
  x_display_set_last_user_time (dpyinfo, time, true, true);
}


/* Set S->gc to a suitable GC for drawing glyph string S in cursor
   face.  */

static void
x_set_cursor_gc (struct glyph_string *s)
{
  if (s->font == FRAME_FONT (s->f)
      && s->face->background == FRAME_BACKGROUND_PIXEL (s->f)
      && s->face->foreground == FRAME_FOREGROUND_PIXEL (s->f)
      && !s->cmp)
    s->gc = s->f->output_data.x->cursor_gc;
  else
    {
      /* Cursor on non-default face: must merge.  */
      XGCValues xgcv;
      unsigned long mask;
      Display *display = FRAME_X_DISPLAY (s->f);

      xgcv.background = s->f->output_data.x->cursor_pixel;
      xgcv.foreground = s->face->background;

      /* If the glyph would be invisible, try a different foreground.  */
      if (xgcv.foreground == xgcv.background)
	xgcv.foreground = s->face->foreground;
      if (xgcv.foreground == xgcv.background)
	xgcv.foreground = s->f->output_data.x->cursor_foreground_pixel;
      if (xgcv.foreground == xgcv.background)
	xgcv.foreground = s->face->foreground;

      /* Make sure the cursor is distinct from text in this face.  */
      if (xgcv.background == s->face->background
	  && xgcv.foreground == s->face->foreground)
	{
	  xgcv.background = s->face->foreground;
	  xgcv.foreground = s->face->background;
	}

      IF_DEBUG (x_check_font (s->f, s->font));
      xgcv.graphics_exposures = False;
      xgcv.line_width = 1;
      mask = (GCForeground | GCBackground
	      | GCGraphicsExposures
	      | GCLineWidth);

      if (FRAME_DISPLAY_INFO (s->f)->scratch_cursor_gc)
	XChangeGC (display, FRAME_DISPLAY_INFO (s->f)->scratch_cursor_gc,
		   mask, &xgcv);
      else
	FRAME_DISPLAY_INFO (s->f)->scratch_cursor_gc
          = XCreateGC (display, FRAME_X_DRAWABLE (s->f), mask, &xgcv);

      s->gc = FRAME_DISPLAY_INFO (s->f)->scratch_cursor_gc;
    }
}


/* Set up S->gc of glyph string S for drawing text in mouse face.  */

static void
x_set_mouse_face_gc (struct glyph_string *s)
{
  if (s->font == s->face->font)
    s->gc = s->face->gc;
  else
    {
      /* Otherwise construct scratch_cursor_gc with values from FACE
	 except for FONT.  */
      XGCValues xgcv;
      unsigned long mask;
      Display *display = FRAME_X_DISPLAY (s->f);

      xgcv.background = s->face->background;
      xgcv.foreground = s->face->foreground;
      xgcv.graphics_exposures = False;
      xgcv.line_width = 1;

      mask = (GCForeground | GCBackground
	      | GCGraphicsExposures
	      | GCLineWidth);

      if (FRAME_DISPLAY_INFO (s->f)->scratch_cursor_gc)
	XChangeGC (display, FRAME_DISPLAY_INFO (s->f)->scratch_cursor_gc,
		   mask, &xgcv);
      else
	FRAME_DISPLAY_INFO (s->f)->scratch_cursor_gc
          = XCreateGC (display, FRAME_X_DRAWABLE (s->f), mask, &xgcv);

      s->gc = FRAME_DISPLAY_INFO (s->f)->scratch_cursor_gc;

    }
  eassert (s->gc != 0);
}


/* Set S->gc of glyph string S to a GC suitable for drawing a mode line.
   Faces to use in the mode line have already been computed when the
   matrix was built, so there isn't much to do, here.  */

static void
x_set_mode_line_face_gc (struct glyph_string *s)
{
  s->gc = s->face->gc;
}


/* Set S->gc of glyph string S for drawing that glyph string.  Set
   S->stippled_p to a non-zero value if the face of S has a stipple
   pattern.  */

static void
x_set_glyph_string_gc (struct glyph_string *s)
{
  prepare_face_for_display (s->f, s->face);

  if (s->hl == DRAW_NORMAL_TEXT)
    {
      s->gc = s->face->gc;
      s->stippled_p = s->face->stipple != 0;
    }
  else if (s->hl == DRAW_INVERSE_VIDEO)
    {
      x_set_mode_line_face_gc (s);
      s->stippled_p = s->face->stipple != 0;
    }
  else if (s->hl == DRAW_CURSOR)
    {
      x_set_cursor_gc (s);
      s->stippled_p = false;
    }
  else if (s->hl == DRAW_MOUSE_FACE)
    {
      x_set_mouse_face_gc (s);
      s->stippled_p = s->face->stipple != 0;
    }
  else if (s->hl == DRAW_IMAGE_RAISED
	   || s->hl == DRAW_IMAGE_SUNKEN)
    {
      s->gc = s->face->gc;
      s->stippled_p = s->face->stipple != 0;
    }
  else
    emacs_abort ();

  /* GC must have been set.  */
  eassert (s->gc != 0);
}


/* Set clipping for output of glyph string S.  S may be part of a mode
   line or menu if we don't have X toolkit support.  */

static void
x_set_glyph_string_clipping (struct glyph_string *s)
{
  XRectangle *r = s->clip;
  int n = get_glyph_string_clip_rects (s, r, 2);

  if (n > 0)
    x_set_clip_rectangles (s->f, s->gc, r, n);
  s->num_clips = n;
}


/* Set SRC's clipping for output of glyph string DST.  This is called
   when we are drawing DST's left_overhang or right_overhang only in
   the area of SRC.  */

static void
x_set_glyph_string_clipping_exactly (struct glyph_string *src, struct glyph_string *dst)
{
  XRectangle r;

  r.x = src->x;
  r.width = src->width;
  r.y = src->y;
  r.height = src->height;
  dst->clip[0] = r;
  dst->num_clips = 1;
  x_set_clip_rectangles (dst->f, dst->gc, &r, 1);
}


/* RIF:
   Compute left and right overhang of glyph string S.  */

static void
x_compute_glyph_string_overhangs (struct glyph_string *s)
{
  if (s->cmp == NULL
      && (s->first_glyph->type == CHAR_GLYPH
	  || s->first_glyph->type == COMPOSITE_GLYPH))
    {
      struct font_metrics metrics;

      if (s->first_glyph->type == CHAR_GLYPH)
	{
	  struct font *font = s->font;
	  font->driver->text_extents (font, s->char2b, s->nchars, &metrics);
	}
      else
	{
	  Lisp_Object gstring = composition_gstring_from_id (s->cmp_id);

	  composition_gstring_width (gstring, s->cmp_from, s->cmp_to, &metrics);
	}
      s->right_overhang = (metrics.rbearing > metrics.width
			   ? metrics.rbearing - metrics.width : 0);
      s->left_overhang = metrics.lbearing < 0 ? - metrics.lbearing : 0;
    }
  else if (s->cmp)
    {
      s->right_overhang = s->cmp->rbearing - s->cmp->pixel_width;
      s->left_overhang = - s->cmp->lbearing;
    }
}


/* Fill rectangle X, Y, W, H with background color of glyph string S.  */

static void
x_clear_glyph_string_rect (struct glyph_string *s, int x, int y, int w, int h)
{
  x_clear_rectangle (s->f, s->gc, x, y, w, h, s->hl != DRAW_CURSOR);
}

#ifndef USE_CAIRO

static void
x_clear_point (struct frame *f, GC gc, int x, int y,
	       bool respect_alpha_background)
{
  XGCValues xgcv;
  Display *dpy;

  dpy = FRAME_X_DISPLAY (f);

  if (f->alpha_background != 1.0
      && respect_alpha_background)
    {
      x_clear_rectangle (f, gc, x, y, 1, 1, true);
      return;
    }

  XGetGCValues (dpy, gc, GCBackground | GCForeground, &xgcv);
  XSetForeground (dpy, gc, xgcv.background);
  XDrawPoint (dpy, FRAME_X_DRAWABLE (f), gc, x, y);
  XSetForeground (dpy, gc, xgcv.foreground);
}

#endif

/* Draw the background of glyph_string S.  If S->background_filled_p
   is non-zero don't draw it.  FORCE_P non-zero means draw the
   background even if it wouldn't be drawn normally.  This is used
   when a string preceding S draws into the background of S, or S
   contains the first component of a composition.  */

static void
x_draw_glyph_string_background (struct glyph_string *s, bool force_p)
{
  /* Nothing to do if background has already been drawn or if it
     shouldn't be drawn in the first place.  */
  if (!s->background_filled_p)
    {
      int box_line_width = max (s->face->box_horizontal_line_width, 0);

      if (s->stippled_p)
	{
          Display *display = FRAME_X_DISPLAY (s->f);

	  /* Fill background with a stipple pattern.  */
	  XSetFillStyle (display, s->gc, FillOpaqueStippled);
	  x_fill_rectangle (s->f, s->gc, s->x,
			    s->y + box_line_width,
			    s->background_width,
			    s->height - 2 * box_line_width,
			    s->hl != DRAW_CURSOR);
	  XSetFillStyle (display, s->gc, FillSolid);
	  s->background_filled_p = true;
	}
      else if (FONT_HEIGHT (s->font) < s->height - 2 * box_line_width
	       /* When xdisp.c ignores FONT_HEIGHT, we cannot trust
		  font dimensions, since the actual glyphs might be
		  much smaller.  So in that case we always clear the
		  rectangle with background color.  */
	       || FONT_TOO_HIGH (s->font)
	       || s->font_not_found_p
	       || s->extends_to_end_of_line_p
	       || force_p)
	{
	  x_clear_glyph_string_rect (s, s->x, s->y + box_line_width,
				     s->background_width,
				     s->height - 2 * box_line_width);
	  s->background_filled_p = true;
	}
    }
}


/* Draw the foreground of glyph string S.  */

static void
x_draw_glyph_string_foreground (struct glyph_string *s)
{
  int i, x;

  /* If first glyph of S has a left box line, start drawing the text
     of S to the right of that box line.  */
  if (s->face->box != FACE_NO_BOX
      && s->first_glyph->left_box_line_p)
    x = s->x + max (s->face->box_vertical_line_width, 0);
  else
    x = s->x;

  /* Draw characters of S as rectangles if S's font could not be
     loaded.  */
  if (s->font_not_found_p)
    {
      for (i = 0; i < s->nchars; ++i)
	{
	  struct glyph *g = s->first_glyph + i;
	  x_draw_rectangle (s->f,
			  s->gc, x, s->y, g->pixel_width - 1,
			  s->height - 1);
	  x += g->pixel_width;
	}
    }
  else
    {
      struct font *font = s->font;
#ifdef USE_CAIRO
      if (!EQ (font->driver->type, Qx)
	  || x_try_cr_xlib_drawable (s->f, s->gc))
	{
#endif	/* USE_CAIRO */
	  int boff = font->baseline_offset;
	  int y;

	  if (font->vertical_centering)
	    boff = VCENTER_BASELINE_OFFSET (font, s->f) - boff;

	  y = s->ybase - boff;
	  if (s->for_overlaps
	      || (s->background_filled_p && s->hl != DRAW_CURSOR))
	    font->driver->draw (s, 0, s->nchars, x, y, false);
	  else
	    font->driver->draw (s, 0, s->nchars, x, y, true);
	  if (s->face->overstrike)
	    font->driver->draw (s, 0, s->nchars, x + 1, y, false);
#ifdef USE_CAIRO
	  if (EQ (font->driver->type, Qx))
	    x_end_cr_xlib_drawable (s->f, s->gc);
	}
      else
	{
	  /* Fallback for the case that no Xlib Drawable is available
	     for drawing text with X core fonts.  */
	  if (!(s->for_overlaps
		|| (s->background_filled_p && s->hl != DRAW_CURSOR)))
	    {
	      int box_line_width = max (s->face->box_horizontal_line_width, 0);

	      if (s->stippled_p)
		{
		  Display *display = FRAME_X_DISPLAY (s->f);

		  /* Fill background with a stipple pattern.  */
		  XSetFillStyle (display, s->gc, FillOpaqueStippled);
		  x_fill_rectangle (s->f, s->gc, s->x,
				    s->y + box_line_width,
				    s->background_width,
				    s->height - 2 * box_line_width,
				    false);
		  XSetFillStyle (display, s->gc, FillSolid);
		}
	      else
		x_clear_glyph_string_rect (s, s->x, s->y + box_line_width,
					   s->background_width,
					   s->height - 2 * box_line_width);
	    }
	  for (i = 0; i < s->nchars; ++i)
	    {
	      struct glyph *g = s->first_glyph + i;
	      x_draw_rectangle (s->f,
				s->gc, x, s->y, g->pixel_width - 1,
				s->height - 1);
	      x += g->pixel_width;
	    }
	}
#endif	/* USE_CAIRO */
    }
}

/* Draw the foreground of composite glyph string S.  */

static void
x_draw_composite_glyph_string_foreground (struct glyph_string *s)
{
  int i, j, x;
  struct font *font = s->font;

  /* If first glyph of S has a left box line, start drawing the text
     of S to the right of that box line.  */
  if (s->face && s->face->box != FACE_NO_BOX
      && s->first_glyph->left_box_line_p)
    x = s->x + max (s->face->box_vertical_line_width, 0);
  else
    x = s->x;

  /* S is a glyph string for a composition.  S->cmp_from is the index
     of the first character drawn for glyphs of this composition.
     S->cmp_from == 0 means we are drawing the very first character of
     this composition.  */

  /* Draw a rectangle for the composition if the font for the very
     first character of the composition could not be loaded.  */
  if (s->font_not_found_p)
    {
      if (s->cmp_from == 0)
	x_draw_rectangle (s->f, s->gc, x, s->y,
			s->width - 1, s->height - 1);
    }
  else
#ifdef USE_CAIRO
    if (!EQ (font->driver->type, Qx)
	|| x_try_cr_xlib_drawable (s->f, s->gc))
      {
#endif	/* USE_CAIRO */
	if (! s->first_glyph->u.cmp.automatic)
	  {
	    int y = s->ybase;

	    for (i = 0, j = s->cmp_from; i < s->nchars; i++, j++)
	      /* TAB in a composition means display glyphs with
		 padding space on the left or right.  */
	      if (COMPOSITION_GLYPH (s->cmp, j) != '\t')
		{
		  int xx = x + s->cmp->offsets[j * 2];
		  int yy = y - s->cmp->offsets[j * 2 + 1];

		  font->driver->draw (s, j, j + 1, xx, yy, false);
		  if (s->face->overstrike)
		    font->driver->draw (s, j, j + 1, xx + 1, yy, false);
		}
	  }
	else
	  {
	    Lisp_Object gstring = composition_gstring_from_id (s->cmp_id);
	    Lisp_Object glyph;
	    int y = s->ybase;
	    int width = 0;

	    for (i = j = s->cmp_from; i < s->cmp_to; i++)
	      {
		glyph = LGSTRING_GLYPH (gstring, i);
		if (NILP (LGLYPH_ADJUSTMENT (glyph)))
		  width += LGLYPH_WIDTH (glyph);
		else
		  {
		    int xoff, yoff, wadjust;

		    if (j < i)
		      {
			font->driver->draw (s, j, i, x, y, false);
			if (s->face->overstrike)
			  font->driver->draw (s, j, i, x + 1, y, false);
			x += width;
		      }
		    xoff = LGLYPH_XOFF (glyph);
		    yoff = LGLYPH_YOFF (glyph);
		    wadjust = LGLYPH_WADJUST (glyph);
		    font->driver->draw (s, i, i + 1, x + xoff, y + yoff, false);
		    if (s->face->overstrike)
		      font->driver->draw (s, i, i + 1, x + xoff + 1, y + yoff,
					  false);
		    x += wadjust;
		    j = i + 1;
		    width = 0;
		  }
	      }
	    if (j < i)
	      {
		font->driver->draw (s, j, i, x, y, false);
		if (s->face->overstrike)
		  font->driver->draw (s, j, i, x + 1, y, false);
	      }
	  }
#ifdef USE_CAIRO
	if (EQ (font->driver->type, Qx))
	  x_end_cr_xlib_drawable (s->f, s->gc);
      }
    else
      {
	/* Fallback for the case that no Xlib Drawable is available
	   for drawing text with X core fonts.  */
	if (s->cmp_from == 0)
	  x_draw_rectangle (s->f, s->gc, x, s->y,
			    s->width - 1, s->height - 1);
      }
#endif	/* USE_CAIRO */
}


/* Draw the foreground of glyph string S for glyphless characters.  */

static void
x_draw_glyphless_glyph_string_foreground (struct glyph_string *s)
{
  struct glyph *glyph = s->first_glyph;
  unsigned char2b[8];
  int x, i, j;

  /* If first glyph of S has a left box line, start drawing the text
     of S to the right of that box line.  */
  if (s->face && s->face->box != FACE_NO_BOX
      && s->first_glyph->left_box_line_p)
    x = s->x + max (s->face->box_vertical_line_width, 0);
  else
    x = s->x;

  s->char2b = char2b;

  for (i = 0; i < s->nchars; i++, glyph++)
    {
#ifdef GCC_LINT
      enum { PACIFY_GCC_BUG_81401 = 1 };
#else
      enum { PACIFY_GCC_BUG_81401 = 0 };
#endif
      char buf[7 + PACIFY_GCC_BUG_81401];
      char *str = NULL;
      int len = glyph->u.glyphless.len;

      if (glyph->u.glyphless.method == GLYPHLESS_DISPLAY_ACRONYM)
	{
	  if (len > 0
	      && CHAR_TABLE_P (Vglyphless_char_display)
	      && (CHAR_TABLE_EXTRA_SLOTS (XCHAR_TABLE (Vglyphless_char_display))
		  >= 1))
	    {
	      Lisp_Object acronym
		= (! glyph->u.glyphless.for_no_font
		   ? CHAR_TABLE_REF (Vglyphless_char_display,
				     glyph->u.glyphless.ch)
		   : XCHAR_TABLE (Vglyphless_char_display)->extras[0]);
	      if (CONSP (acronym))
		acronym = XCAR (acronym);
	      if (STRINGP (acronym))
		str = SSDATA (acronym);
	    }
	}
      else if (glyph->u.glyphless.method == GLYPHLESS_DISPLAY_HEX_CODE)
	{
	  unsigned int ch = glyph->u.glyphless.ch;
	  eassume (ch <= MAX_CHAR);
	  sprintf (buf, "%0*X", ch < 0x10000 ? 4 : 6, ch);
	  str = buf;
	}

      if (str)
	{
	  int upper_len = (len + 1) / 2;

	  /* It is assured that all LEN characters in STR is ASCII.  */
	  for (j = 0; j < len; j++)
            char2b[j] = s->font->driver->encode_char (s->font, str[j]) & 0xFFFF;
	  s->font->driver->draw (s, 0, upper_len,
				 x + glyph->slice.glyphless.upper_xoff,
				 s->ybase + glyph->slice.glyphless.upper_yoff,
				 false);
	  s->font->driver->draw (s, upper_len, len,
				 x + glyph->slice.glyphless.lower_xoff,
				 s->ybase + glyph->slice.glyphless.lower_yoff,
				 false);
	}
      if (glyph->u.glyphless.method != GLYPHLESS_DISPLAY_THIN_SPACE)
	x_draw_rectangle (s->f, s->gc,
			x, s->ybase - glyph->ascent,
			glyph->pixel_width - 1,
			glyph->ascent + glyph->descent - 1);
      x += glyph->pixel_width;
   }

  /* Defend against hypothetical bad code elsewhere that uses
     s->char2b after this function returns.  */
  s->char2b = NULL;
}

#ifdef USE_X_TOOLKIT

#ifdef USE_LUCID

/* Return the frame on which widget WIDGET is used.. Abort if frame
   cannot be determined.  */

static struct frame *
x_frame_of_widget (Widget widget)
{
  struct x_display_info *dpyinfo;
  Lisp_Object tail, frame;
  struct frame *f;

  dpyinfo = x_display_info_for_display (XtDisplay (widget));

  /* Find the top-level shell of the widget.  Note that this function
     can be called when the widget is not yet realized, so XtWindow
     (widget) == 0.  That's the reason we can't simply use
     x_any_window_to_frame.  */
  while (!XtIsTopLevelShell (widget))
    widget = XtParent (widget);

  /* Look for a frame with that top-level widget.  Allocate the color
     on that frame to get the right gamma correction value.  */
  FOR_EACH_FRAME (tail, frame)
    {
      f = XFRAME (frame);
      if (FRAME_X_P (f)
	  && FRAME_DISPLAY_INFO (f) == dpyinfo
	  && f->output_data.x->widget == widget)
	return f;
    }
  emacs_abort ();
}

/* Allocate a color which is lighter or darker than *PIXEL by FACTOR
   or DELTA.  Try a color with RGB values multiplied by FACTOR first.
   If this produces the same color as PIXEL, try a color where all RGB
   values have DELTA added.  Return the allocated color in *PIXEL.
   DISPLAY is the X display, CMAP is the colormap to operate on.
   Value is true if successful.  */

bool
x_alloc_lighter_color_for_widget (Widget widget, Display *display, Colormap cmap,
				  unsigned long *pixel, double factor, int delta)
{
  struct frame *f = x_frame_of_widget (widget);
  return x_alloc_lighter_color (f, display, cmap, pixel, factor, delta);
}

#endif /* USE_LUCID */


/* Structure specifying which arguments should be passed by Xt to
   cvt_string_to_pixel.  We want the widget's screen and colormap.  */

static XtConvertArgRec cvt_string_to_pixel_args[] =
  {
    {XtWidgetBaseOffset, (XtPointer) offsetof (WidgetRec, core.screen),
     sizeof (Screen *)},
    {XtWidgetBaseOffset, (XtPointer) offsetof (WidgetRec, core.colormap),
     sizeof (Colormap)}
  };


/* The address of this variable is returned by
   cvt_string_to_pixel.  */

static Pixel cvt_string_to_pixel_value;


/* Convert a color name to a pixel color.

   DPY is the display we are working on.

   ARGS is an array of *NARGS XrmValue structures holding additional
   information about the widget for which the conversion takes place.
   The contents of this array are determined by the specification
   in cvt_string_to_pixel_args.

   FROM is a pointer to an XrmValue which points to the color name to
   convert.  TO is an XrmValue in which to return the pixel color.

   CLOSURE_RET is a pointer to user-data, in which we record if
   we allocated the color or not.

   Value is True if successful, False otherwise.  */

static Boolean
cvt_string_to_pixel (Display *dpy, XrmValue *args, Cardinal *nargs,
		     XrmValue *from, XrmValue *to,
		     XtPointer *closure_ret)
{
  Screen *screen;
  Colormap cmap;
  Pixel pixel;
  String color_name;
  XColor color;

  if (*nargs != 2)
    {
      XtAppWarningMsg (XtDisplayToApplicationContext (dpy),
		       "wrongParameters", "cvt_string_to_pixel",
		       "XtToolkitError",
		       "Screen and colormap args required", NULL, NULL);
      return False;
    }

  screen = *(Screen **) args[0].addr;
  cmap = *(Colormap *) args[1].addr;
  color_name = (String) from->addr;

  if (strcmp (color_name, XtDefaultBackground) == 0)
    {
      *closure_ret = (XtPointer) False;
      pixel = WhitePixelOfScreen (screen);
    }
  else if (strcmp (color_name, XtDefaultForeground) == 0)
    {
      *closure_ret = (XtPointer) False;
      pixel = BlackPixelOfScreen (screen);
    }
  else if (XParseColor (dpy, cmap, color_name, &color)
	   && x_alloc_nearest_color_1 (dpy, cmap, &color))
    {
      pixel = color.pixel;
      *closure_ret = (XtPointer) True;
    }
  else
    {
      String params[1];
      Cardinal nparams = 1;

      params[0] = color_name;
      XtAppWarningMsg (XtDisplayToApplicationContext (dpy),
		       "badValue", "cvt_string_to_pixel",
		       "XtToolkitError", "Invalid color '%s'",
		       params, &nparams);
      return False;
    }

  if (to->addr != NULL)
    {
      if (to->size < sizeof (Pixel))
	{
	  to->size = sizeof (Pixel);
	  return False;
	}

      *(Pixel *) to->addr = pixel;
    }
  else
    {
      cvt_string_to_pixel_value = pixel;
      to->addr = (XtPointer) &cvt_string_to_pixel_value;
    }

  to->size = sizeof (Pixel);
  return True;
}


/* Free a pixel color which was previously allocated via
   cvt_string_to_pixel.  This is registered as the destructor
   for this type of resource via XtSetTypeConverter.

   APP is the application context in which we work.

   TO is a pointer to an XrmValue holding the color to free.
   CLOSURE is the value we stored in CLOSURE_RET for this color
   in cvt_string_to_pixel.

   ARGS and NARGS are like for cvt_string_to_pixel.  */

static void
cvt_pixel_dtor (XtAppContext app, XrmValuePtr to, XtPointer closure, XrmValuePtr args,
		Cardinal *nargs)
{
  if (*nargs != 2)
    {
      XtAppWarningMsg (app, "wrongParameters", "cvt_pixel_dtor",
		       "XtToolkitError",
		       "Screen and colormap arguments required",
		       NULL, NULL);
    }
  else if (closure != NULL)
    {
      /* We did allocate the pixel, so free it.  */
      Screen *screen = *(Screen **) args[0].addr;
      Colormap cmap = *(Colormap *) args[1].addr;
      x_free_dpy_colors (DisplayOfScreen (screen), screen, cmap,
			 (Pixel *) to->addr, 1);
    }
}


#endif /* USE_X_TOOLKIT */


/* Value is an array of XColor structures for the contents of the
   color map of display DPY.  Set *NCELLS to the size of the array.
   Note that this probably shouldn't be called for large color maps,
   say a 24-bit TrueColor map.  */

static const XColor *
x_color_cells (Display *dpy, int *ncells)
{
  struct x_display_info *dpyinfo = x_display_info_for_display (dpy);
  eassume (dpyinfo);

  if (dpyinfo->color_cells == NULL)
    {
      int ncolor_cells = dpyinfo->visual_info.colormap_size;
      int i;

      dpyinfo->color_cells = xnmalloc (ncolor_cells,
				       sizeof *dpyinfo->color_cells);
      dpyinfo->ncolor_cells = ncolor_cells;

      for (i = 0; i < ncolor_cells; ++i)
	dpyinfo->color_cells[i].pixel = i;

      XQueryColors (dpy, dpyinfo->cmap,
		    dpyinfo->color_cells, ncolor_cells);
    }

  *ncells = dpyinfo->ncolor_cells;
  return dpyinfo->color_cells;
}


/* On frame F, translate pixel colors to RGB values for the NCOLORS
   colors in COLORS.  Use cached information, if available.

   Pixel values are in unsigned normalized format, meaning that
   extending missing bits is done straightforwardly without any
   complex colorspace conversions.  */

void
x_query_colors (struct frame *f, XColor *colors, int ncolors)
{
  struct x_display_info *dpyinfo = FRAME_DISPLAY_INFO (f);
  int i;

  if (dpyinfo->red_bits > 0)
    {
      /* For TrueColor displays, we can decompose the RGB value
	 directly.  */
      unsigned int rmult, gmult, bmult;
      unsigned int rmask, gmask, bmask;

      rmask = (1 << dpyinfo->red_bits) - 1;
      gmask = (1 << dpyinfo->green_bits) - 1;
      bmask = (1 << dpyinfo->blue_bits) - 1;
      /* If we're widening, for example, 8 bits in the pixel value to
	 16 bits for the separate-color representation, we want to
	 extrapolate the lower bits based on those bits available --
	 in other words, we'd like 0xff to become 0xffff instead of
	 the 0xff00 we'd get by just zero-filling the lower bits.

         We generate a 32-bit scaled-up value and shift it, in case
         the bit count doesn't divide 16 evenly (e.g., when dealing
         with a 3-3-2 bit RGB display), to get more of the lower bits
         correct.

         Should we cache the multipliers in dpyinfo?  Maybe
         special-case the 8-8-8 common case?  */
      rmult = 0xffffffff / rmask;
      gmult = 0xffffffff / gmask;
      bmult = 0xffffffff / bmask;

      for (i = 0; i < ncolors; ++i)
	{
	  unsigned int r, g, b;
	  unsigned long pixel = colors[i].pixel;

	  r = (pixel >> dpyinfo->red_offset) & rmask;
	  g = (pixel >> dpyinfo->green_offset) & gmask;
	  b = (pixel >> dpyinfo->blue_offset) & bmask;

	  colors[i].red = (r * rmult) >> 16;
	  colors[i].green = (g * gmult) >> 16;
	  colors[i].blue = (b * bmult) >> 16;
	}

      return;
    }

  if (dpyinfo->color_cells)
    {
      int i;
      for (i = 0; i < ncolors; ++i)
	{
	  unsigned long pixel = colors[i].pixel;
	  eassert (pixel < dpyinfo->ncolor_cells);
	  eassert (dpyinfo->color_cells[pixel].pixel == pixel);
	  colors[i] = dpyinfo->color_cells[pixel];
	}
      return;
    }

  XQueryColors (FRAME_X_DISPLAY (f), FRAME_X_COLORMAP (f), colors, ncolors);
}

/* Store F's real background color into *BGCOLOR.  */

static void
x_query_frame_background_color (struct frame *f, XColor *bgcolor)
{
  unsigned long background = FRAME_BACKGROUND_PIXEL (f);
#ifndef USE_CAIRO
  XColor bg;
#endif

  if (FRAME_DISPLAY_INFO (f)->alpha_bits)
    {
#ifdef USE_CAIRO
      background = (background & ~FRAME_DISPLAY_INFO (f)->alpha_mask);
      background |= (((unsigned long) (f->alpha_background * 0xffff)
		      >> (16 - FRAME_DISPLAY_INFO (f)->alpha_bits))
		     << FRAME_DISPLAY_INFO (f)->alpha_offset);
#else
      if (FRAME_DISPLAY_INFO (f)->alpha_bits
	  && f->alpha_background < 1.0)
	{
	  bg.pixel = background;
	  x_query_colors (f, &bg, 1);

	  background
	    = x_premultiply_pixel (FRAME_DISPLAY_INFO (f),
				   &bg, f->alpha_background);
	}
#endif
    }

  bgcolor->pixel = background;

  x_query_colors (f, bgcolor, 1);
}

static unsigned int
x_hash_string_ignore_case (const char *string)
{
  unsigned int i;

  i = 3323198485ul;
  for (; *string; ++string)
    {
      i ^= c_tolower (*string);
      i *= 0x5bd1e995;
      i ^= i >> 15;
    }
  return i;
}

/* On frame F, translate the color name to RGB values.  Use cached
   information, if possible.

   If too many entries are placed in the cache, the least recently
   used entries are removed.  */

Status
x_parse_color (struct frame *f, const char *color_name,
	       XColor *color)
{
  unsigned short r, g, b;
  Display *dpy;
  Colormap cmap;
  struct x_display_info *dpyinfo;
  struct color_name_cache_entry *cache_entry, *last;
  struct color_name_cache_entry *next, *color_entry;
  unsigned int hash, idx;
  int rc, i;

  /* Don't pass #RGB strings directly to XParseColor, because that
     follows the X convention of zero-extending each channel
     value: #f00 means #f00000.  We want the convention of scaling
     channel values, so #f00 means #ff0000, just as it does for
     HTML, SVG, and CSS.  */
  if (parse_color_spec (color_name, &r, &g, &b))
    {
      color->red = r;
      color->green = g;
      color->blue = b;

      return 1;
    }

  /* Some X servers send BadValue on empty color names.  */
  if (!strlen (color_name))
    return 0;

  cmap = FRAME_X_COLORMAP (f);
  dpy = FRAME_X_DISPLAY (f);
  dpyinfo = FRAME_DISPLAY_INFO (f);

  hash = x_hash_string_ignore_case (color_name);
  idx = hash % dpyinfo->color_names_size;

  last = NULL;

  for (cache_entry = dpyinfo->color_names[idx];
       cache_entry; cache_entry = cache_entry->next)
    {
      if (!xstrcasecmp (cache_entry->name, color_name))
	{
	  /* Move recently used entries to the start of the color
	     cache.  */

	  if (last)
	    {
	      last->next = cache_entry->next;
	      cache_entry->next = dpyinfo->color_names[idx];

	      dpyinfo->color_names[idx] = cache_entry;
	    }

	  if (cache_entry->valid)
	    *color = cache_entry->rgb;

	  return cache_entry->valid;
	}

      last = cache_entry;
    }

  block_input ();
  rc = XParseColor (dpy, cmap, color_name, color);
  unblock_input ();

  cache_entry = xzalloc (sizeof *cache_entry);
  dpyinfo->color_names_length[idx] += 1;

  if (rc)
    cache_entry->rgb = *color;

  cache_entry->valid = rc;
  cache_entry->name = xstrdup (color_name);
  cache_entry->next = dpyinfo->color_names[idx];

  dpyinfo->color_names[idx] = cache_entry;

  /* Don't let the color cache become too big.  */
  if (dpyinfo->color_names_length[idx] > (x_color_cache_bucket_size > 0
					  ? x_color_cache_bucket_size : 128))
    {
      i = 0;

      for (last = dpyinfo->color_names[idx]; last; last = last->next)
	{
	  if (++i == (x_color_cache_bucket_size > 0
		      ? x_color_cache_bucket_size : 128))
	    {
	      next = last->next;
	      last->next = NULL;

	      for (color_entry = next; color_entry; color_entry = last)
		{
		  last = color_entry->next;

		  xfree (color_entry->name);
		  xfree (color_entry);

		  dpyinfo->color_names_length[idx] -= 1;
		}

	      return rc;
	    }
	}
    }

  return rc;
}


/* Allocate the color COLOR->pixel on DISPLAY, colormap CMAP.  If an
   exact match can't be allocated, try the nearest color available.
   Value is true if successful.  Set *COLOR to the color
   allocated.  */

static bool
x_alloc_nearest_color_1 (Display *dpy, Colormap cmap, XColor *color)
{
  struct x_display_info *dpyinfo = x_display_info_for_display (dpy);
  bool rc;

  eassume (dpyinfo);
  rc = XAllocColor (dpy, cmap, color) != 0;

  if (dpyinfo->visual_info.class == DirectColor)
    return rc;

  if (rc == 0)
    {
      /* If we got to this point, the colormap is full, so we're going
	 to try and get the next closest color.  The algorithm used is
	 a least-squares matching, which is what X uses for closest
	 color matching with StaticColor visuals.  */

      const XColor *cells;
      int no_cells;
      int nearest;
      long nearest_delta, trial_delta;
      int x;
      Status status;
      bool retry = false;
      int ncolor_cells, i;
      bool temp_allocated;
      XColor temp;

    start:
      cells = x_color_cells (dpy, &no_cells);
      temp_allocated = false;

      nearest = 0;
      /* I'm assuming CSE so I'm not going to condense this. */
      nearest_delta = ((((color->red >> 8) - (cells[0].red >> 8))
			* ((color->red >> 8) - (cells[0].red >> 8)))
		       + (((color->green >> 8) - (cells[0].green >> 8))
			  * ((color->green >> 8) - (cells[0].green >> 8)))
		       + (((color->blue >> 8) - (cells[0].blue >> 8))
			  * ((color->blue >> 8) - (cells[0].blue >> 8))));
      for (x = 1; x < no_cells; x++)
	{
	  trial_delta = ((((color->red >> 8) - (cells[x].red >> 8))
			  * ((color->red >> 8) - (cells[x].red >> 8)))
			 + (((color->green >> 8) - (cells[x].green >> 8))
			    * ((color->green >> 8) - (cells[x].green >> 8)))
			 + (((color->blue >> 8) - (cells[x].blue >> 8))
			    * ((color->blue >> 8) - (cells[x].blue >> 8))));
	  if (trial_delta < nearest_delta)
	    {
	      /* We didn't decide to use this color, so free it.  */
	      if (temp_allocated)
		{
		  XFreeColors (dpy, cmap, &temp.pixel, 1, 0);
		  temp_allocated = false;
		}

	      temp.red = cells[x].red;
	      temp.green = cells[x].green;
	      temp.blue = cells[x].blue;
	      status = XAllocColor (dpy, cmap, &temp);

	      if (status)
		{
		  temp_allocated = true;
		  nearest = x;
		  nearest_delta = trial_delta;
		}
	    }
	}
      color->red = cells[nearest].red;
      color->green = cells[nearest].green;
      color->blue = cells[nearest].blue;

      if (!temp_allocated)
	status = XAllocColor (dpy, cmap, color);
      else
	{
	  *color = temp;
	  status = 1;
	}

      if (status == 0 && !retry)
	{
	  /* Our private cache of color cells is probably out of date.
	     Refresh it here, and try to allocate the nearest color
	     from the new colormap.  */

	  retry = true;
	  xfree (dpyinfo->color_cells);

	  ncolor_cells = dpyinfo->visual_info.colormap_size;

	  dpyinfo->color_cells = xnmalloc (ncolor_cells,
					   sizeof *dpyinfo->color_cells);
	  dpyinfo->ncolor_cells = ncolor_cells;

	  for (i = 0; i < ncolor_cells; ++i)
	    dpyinfo->color_cells[i].pixel = i;

	  XQueryColors (dpy, dpyinfo->cmap,
			dpyinfo->color_cells, ncolor_cells);

	  goto start;
	}

      rc = status != 0;
    }
  else
    {
      /* If allocation succeeded, and the allocated pixel color is not
         equal to a cached pixel color recorded earlier, there was a
         change in the colormap, so clear the color cache.  */
      struct x_display_info *dpyinfo = x_display_info_for_display (dpy);
      eassume (dpyinfo);

      if (dpyinfo->color_cells)
	{
	  XColor *cached_color = &dpyinfo->color_cells[color->pixel];
	  if (cached_color->red != color->red
	      || cached_color->blue != color->blue
	      || cached_color->green != color->green)
	    {
	      xfree (dpyinfo->color_cells);
	      dpyinfo->color_cells = NULL;
	      dpyinfo->ncolor_cells = 0;
	    }
	}
    }

#ifdef DEBUG_X_COLORS
  if (rc)
    register_color (color->pixel);
#endif /* DEBUG_X_COLORS */

  return rc;
}


/* Allocate the color COLOR->pixel on frame F, colormap CMAP, after
   gamma correction.  If an exact match can't be allocated, try the
   nearest color available.  Value is true if successful.  Set *COLOR
   to the color allocated.  */

bool
x_alloc_nearest_color (struct frame *f, Colormap cmap, XColor *color)
{
  struct x_display_info *dpyinfo = FRAME_DISPLAY_INFO (f);

  gamma_correct (f, color);

  if (dpyinfo->red_bits > 0)
    {
      color->pixel = x_make_truecolor_pixel (dpyinfo,
					     color->red,
					     color->green,
					     color->blue);
      return true;
    }

  return x_alloc_nearest_color_1 (FRAME_X_DISPLAY (f), cmap, color);
}


/* Allocate color PIXEL on frame F.  PIXEL must already be allocated.
   It's necessary to do this instead of just using PIXEL directly to
   get color reference counts right.  */

unsigned long
x_copy_color (struct frame *f, unsigned long pixel)
{
  XColor color;

  /* If display has an immutable color map, freeing colors is not
     necessary and some servers don't allow it.  Since we won't free a
     color once we've allocated it, we don't need to re-allocate it to
     maintain the server's reference count.  */
  if (!x_mutable_colormap (FRAME_X_VISUAL_INFO (f)))
    return pixel;

  color.pixel = pixel;
  block_input ();
  /* The color could still be found in the color_cells array.  */
  x_query_colors (f, &color, 1);
  XAllocColor (FRAME_X_DISPLAY (f), FRAME_X_COLORMAP (f), &color);
  unblock_input ();
#ifdef DEBUG_X_COLORS
  register_color (pixel);
#endif
  return color.pixel;
}


/* Brightness beyond which a color won't have its highlight brightness
   boosted.

   Nominally, highlight colors for `3d' faces are calculated by
   brightening an object's color by a constant scale factor, but this
   doesn't yield good results for dark colors, so for colors who's
   brightness is less than this value (on a scale of 0-65535) have an
   use an additional additive factor.

   The value here is set so that the default menu-bar/mode-line color
   (grey75) will not have its highlights changed at all.  */
#define HIGHLIGHT_COLOR_DARK_BOOST_LIMIT 48000


/* Allocate a color which is lighter or darker than *PIXEL by FACTOR
   or DELTA.  Try a color with RGB values multiplied by FACTOR first.
   If this produces the same color as PIXEL, try a color where all RGB
   values have DELTA added.  Return the allocated color in *PIXEL.
   DISPLAY is the X display, CMAP is the colormap to operate on.
   Value is non-zero if successful.  */

static bool
x_alloc_lighter_color (struct frame *f, Display *display, Colormap cmap,
		       unsigned long *pixel, double factor, int delta)
{
  XColor color, new;
  long bright;
  bool success_p;

  /* Get RGB color values.  */
  color.pixel = *pixel;
  x_query_colors (f, &color, 1);

  /* Change RGB values by specified FACTOR.  Avoid overflow!  */
  eassert (factor >= 0);
  new.red = min (0xffff, factor * color.red);
  new.green = min (0xffff, factor * color.green);
  new.blue = min (0xffff, factor * color.blue);

  /* Calculate brightness of COLOR.  */
  bright = (2 * color.red + 3 * color.green + color.blue) / 6;

  /* We only boost colors that are darker than
     HIGHLIGHT_COLOR_DARK_BOOST_LIMIT.  */
  if (bright < HIGHLIGHT_COLOR_DARK_BOOST_LIMIT)
    /* Make an additive adjustment to NEW, because it's dark enough so
       that scaling by FACTOR alone isn't enough.  */
    {
      /* How far below the limit this color is (0 - 1, 1 being darker).  */
      double dimness = 1 - (double) bright / HIGHLIGHT_COLOR_DARK_BOOST_LIMIT;
      /* The additive adjustment.  */
      int min_delta = delta * dimness * factor / 2;

      if (factor < 1)
	{
	  new.red =   max (0, new.red -   min_delta);
	  new.green = max (0, new.green - min_delta);
	  new.blue =  max (0, new.blue -  min_delta);
	}
      else
	{
	  new.red =   min (0xffff, min_delta + new.red);
	  new.green = min (0xffff, min_delta + new.green);
	  new.blue =  min (0xffff, min_delta + new.blue);
	}
    }

  /* Try to allocate the color.  */
  success_p = x_alloc_nearest_color (f, cmap, &new);
  if (success_p)
    {
      if (new.pixel == *pixel)
	{
	  /* If we end up with the same color as before, try adding
	     delta to the RGB values.  */
	  x_free_colors (f, &new.pixel, 1);

	  new.red = min (0xffff, delta + color.red);
	  new.green = min (0xffff, delta + color.green);
	  new.blue = min (0xffff, delta + color.blue);
	  success_p = x_alloc_nearest_color (f, cmap, &new);
	}
      else
	success_p = true;
      *pixel = new.pixel;
    }

  return success_p;
}


/* Set up the foreground color for drawing relief lines of glyph
   string S.  RELIEF is a pointer to a struct relief containing the GC
   with which lines will be drawn.  Use a color that is FACTOR or
   DELTA lighter or darker than the relief's background which is found
   in S->f->output_data.x->relief_background.  If such a color cannot
   be allocated, use DEFAULT_PIXEL, instead.  */

static void
x_setup_relief_color (struct frame *f, struct relief *relief, double factor,
		      int delta, unsigned long default_pixel)
{
  XGCValues xgcv;
  struct x_output *di = f->output_data.x;
  unsigned long mask = GCForeground | GCLineWidth | GCGraphicsExposures;
  unsigned long pixel;
  unsigned long background = di->relief_background;
  Colormap cmap = FRAME_X_COLORMAP (f);
  struct x_display_info *dpyinfo = FRAME_DISPLAY_INFO (f);
  Display *dpy = FRAME_X_DISPLAY (f);

  xgcv.graphics_exposures = False;
  xgcv.line_width = 1;

  /* Free previously allocated color.  The color cell will be reused
     when it has been freed as many times as it was allocated, so this
     doesn't affect faces using the same colors.  */
  if (relief->gc && relief->pixel != -1)
    {
      x_free_colors (f, &relief->pixel, 1);
      relief->pixel = -1;
    }

  /* Allocate new color.  */
  xgcv.foreground = default_pixel;
  pixel = background;
  if (dpyinfo->n_planes != 1
      && x_alloc_lighter_color (f, dpy, cmap, &pixel, factor, delta))
    xgcv.foreground = relief->pixel = pixel;

  if (relief->gc == 0)
    {
      xgcv.stipple = dpyinfo->gray;
      mask |= GCStipple;
      relief->gc = XCreateGC (dpy, FRAME_X_DRAWABLE (f), mask, &xgcv);
    }
  else
    XChangeGC (dpy, relief->gc, mask, &xgcv);
}


/* Set up colors for the relief lines around glyph string S.  */

static void
x_setup_relief_colors (struct glyph_string *s)
{
  struct x_output *di = s->f->output_data.x;
  unsigned long color;

  if (s->face->use_box_color_for_shadows_p)
    color = s->face->box_color;
  else if (s->first_glyph->type == IMAGE_GLYPH
	   && s->img->pixmap
	   && !IMAGE_BACKGROUND_TRANSPARENT (s->img, s->f, 0))
    color = IMAGE_BACKGROUND (s->img, s->f, 0);
  else
    {
      XGCValues xgcv;

      /* Get the background color of the face.  */
      XGetGCValues (FRAME_X_DISPLAY (s->f), s->gc, GCBackground, &xgcv);
      color = xgcv.background;
    }

  if (di->white_relief.gc == 0
      || color != di->relief_background)
    {
      di->relief_background = color;
      x_setup_relief_color (s->f, &di->white_relief, 1.2, 0x8000,
			    WHITE_PIX_DEFAULT (s->f));
      x_setup_relief_color (s->f, &di->black_relief, 0.6, 0x4000,
			    BLACK_PIX_DEFAULT (s->f));
    }
}

#ifndef USE_CAIRO
static void
x_fill_triangle (struct frame *f, GC gc, XPoint point1,
		 XPoint point2, XPoint point3)
{
  XPoint abc[3];

  abc[0] = point1;
  abc[1] = point2;
  abc[2] = point3;

  XFillPolygon (FRAME_X_DISPLAY (f), FRAME_X_DRAWABLE (f),
		gc, abc, 3, Convex, CoordModeOrigin);
}

static XPoint
x_make_point (int x, int y)
{
  XPoint pt;

  pt.x = x;
  pt.y = y;

  return pt;
}

static bool
x_inside_rect_p (XRectangle *rects, int nrects, int x, int y)
{
  int i;

  for (i = 0; i < nrects; ++i)
    {
      if (x >= rects[i].x && y >= rects[i].y
	  && x < rects[i].x + rects[i].width
	  && y < rects[i].y + rects[i].height)
	return true;
    }

  return false;
}
#endif

/* Draw a relief on frame F inside the rectangle given by LEFT_X,
   TOP_Y, RIGHT_X, and BOTTOM_Y.  VWIDTH and HWIDTH are respectively
   the thickness of the vertical relief (left and right) and
   horizontal relief (top and bottom) to draw, it must be >= 0.
   RAISED_P means draw a raised relief.  LEFT_P means draw a relief on
   the left side of the rectangle.  RIGHT_P means draw a relief on the
   right side of the rectangle.  CLIP_RECT is the clipping rectangle
   to use when drawing.  */

static void
x_draw_relief_rect (struct frame *f, int left_x, int top_y, int right_x,
		    int bottom_y, int hwidth, int vwidth, bool raised_p,
		    bool top_p, bool bot_p, bool left_p, bool right_p,
		    XRectangle *clip_rect)
{
#ifdef USE_CAIRO
  GC top_left_gc, bottom_right_gc;
  int corners = 0;

  if (raised_p)
    {
      top_left_gc = f->output_data.x->white_relief.gc;
      bottom_right_gc = f->output_data.x->black_relief.gc;
    }
  else
    {
      top_left_gc = f->output_data.x->black_relief.gc;
      bottom_right_gc = f->output_data.x->white_relief.gc;
    }

  x_set_clip_rectangles (f, top_left_gc, clip_rect, 1);
  x_set_clip_rectangles (f, bottom_right_gc, clip_rect, 1);

  if (left_p)
    {
      x_fill_rectangle (f, top_left_gc, left_x, top_y,
			vwidth, bottom_y + 1 - top_y, false);
      if (top_p)
	corners |= 1 << CORNER_TOP_LEFT;
      if (bot_p)
	corners |= 1 << CORNER_BOTTOM_LEFT;
    }
  if (right_p)
    {
      x_fill_rectangle (f, bottom_right_gc, right_x + 1 - vwidth, top_y,
			vwidth, bottom_y + 1 - top_y, false);
      if (top_p)
	corners |= 1 << CORNER_TOP_RIGHT;
      if (bot_p)
	corners |= 1 << CORNER_BOTTOM_RIGHT;
    }
  if (top_p)
    {
      if (!right_p)
	x_fill_rectangle (f, top_left_gc, left_x, top_y,
			  right_x + 1 - left_x, hwidth, false);
      else
	x_fill_trapezoid_for_relief (f, top_left_gc, left_x, top_y,
				     right_x + 1 - left_x, hwidth, 1);
    }
  if (bot_p)
    {
      if (!left_p)
	x_fill_rectangle (f, bottom_right_gc, left_x, bottom_y + 1 - hwidth,
			  right_x + 1 - left_x, hwidth, false);
      else
	x_fill_trapezoid_for_relief (f, bottom_right_gc,
				     left_x, bottom_y + 1 - hwidth,
				     right_x + 1 - left_x, hwidth, 0);
    }
  if (left_p && vwidth > 1)
    x_fill_rectangle (f, bottom_right_gc, left_x, top_y,
		      1, bottom_y + 1 - top_y, false);
  if (top_p && hwidth > 1)
    x_fill_rectangle (f, bottom_right_gc, left_x, top_y,
		      right_x + 1 - left_x, 1, false);
  if (corners)
    {
      XSetBackground (FRAME_X_DISPLAY (f), top_left_gc,
		      FRAME_BACKGROUND_PIXEL (f));
      x_erase_corners_for_relief (f, top_left_gc, left_x, top_y,
				  right_x - left_x + 1, bottom_y - top_y + 1,
				  6, 1, corners);
    }

  x_reset_clip_rectangles (f, top_left_gc);
  x_reset_clip_rectangles (f, bottom_right_gc);
#else
  GC gc, white_gc, black_gc, normal_gc;
  Drawable drawable;
  Display *dpy;

  /* This code is more complicated than it has to be, because of two
     minor hacks to make the boxes look nicer: (i) if width > 1, draw
     the outermost line using the black relief.  (ii) Omit the four
     corner pixels.  */

  white_gc = f->output_data.x->white_relief.gc;
  black_gc = f->output_data.x->black_relief.gc;
  normal_gc = f->output_data.x->normal_gc;

  drawable = FRAME_X_DRAWABLE (f);
  dpy = FRAME_X_DISPLAY (f);

  x_set_clip_rectangles (f, white_gc, clip_rect, 1);
  x_set_clip_rectangles (f, black_gc, clip_rect, 1);

  if (raised_p)
    gc = white_gc;
  else
    gc = black_gc;

  /* Draw lines.  */

  if (top_p)
    x_fill_rectangle (f, gc, left_x, top_y,
		      right_x - left_x + 1, hwidth,
		      false);

  if (left_p)
    x_fill_rectangle (f, gc, left_x, top_y, vwidth,
		      bottom_y - top_y + 1, false);

  if (raised_p)
    gc = black_gc;
  else
    gc = white_gc;

  if (bot_p)
    x_fill_rectangle (f, gc, left_x, bottom_y - hwidth + 1,
		      right_x - left_x + 1, hwidth, false);

  if (right_p)
    x_fill_rectangle (f, gc, right_x - vwidth + 1, top_y,
		      vwidth, bottom_y - top_y + 1, false);

  /* Draw corners.  */

  if (bot_p && left_p)
    x_fill_triangle (f, raised_p ? white_gc : black_gc,
		     x_make_point (left_x, bottom_y - hwidth),
		     x_make_point (left_x + vwidth, bottom_y - hwidth),
		     x_make_point (left_x, bottom_y));

  if (top_p && right_p)
    x_fill_triangle (f, raised_p ? white_gc : black_gc,
		     x_make_point (right_x - vwidth, top_y),
		     x_make_point (right_x, top_y),
		     x_make_point (right_x - vwidth, top_y + hwidth));

  /* Draw outer line.  */

  if (top_p && left_p && bot_p && right_p
      && hwidth > 1 && vwidth > 1)
    x_draw_rectangle (f, black_gc, left_x, top_y,
		      right_x - left_x, bottom_y - top_y);
  else
    {
      if (top_p && hwidth > 1)
	XDrawLine (dpy, drawable, black_gc, left_x, top_y,
		   right_x + 1, top_y);

      if (bot_p && hwidth > 1)
	XDrawLine (dpy, drawable, black_gc, left_x, bottom_y,
		   right_x + 1, bottom_y);

      if (left_p && vwidth > 1)
	XDrawLine (dpy, drawable, black_gc, left_x, top_y,
		   left_x, bottom_y + 1);

      if (right_p && vwidth > 1)
	XDrawLine (dpy, drawable, black_gc, right_x, top_y,
		   right_x, bottom_y + 1);
    }

  /* Erase corners.  */

  if (hwidth > 1 && vwidth > 1)
    {
      if (left_p && top_p && x_inside_rect_p (clip_rect, 1,
					      left_x, top_y))
	/* This should respect `alpha-background' since it's being
	   cleared with the background color of the frame.  */
	x_clear_point (f, normal_gc, left_x, top_y, true);

      if (left_p && bot_p && x_inside_rect_p (clip_rect, 1,
					      left_x, bottom_y))
	x_clear_point (f, normal_gc, left_x, bottom_y, true);

      if (right_p && top_p && x_inside_rect_p (clip_rect, 1,
					       right_x, top_y))
	x_clear_point (f, normal_gc, right_x, top_y, true);

      if (right_p && bot_p && x_inside_rect_p (clip_rect, 1,
					       right_x, bottom_y))
	x_clear_point (f, normal_gc, right_x, bottom_y, true);
    }

  x_reset_clip_rectangles (f, white_gc);
  x_reset_clip_rectangles (f, black_gc);
#endif
}


/* Draw a box on frame F inside the rectangle given by LEFT_X, TOP_Y,
   RIGHT_X, and BOTTOM_Y.  WIDTH is the thickness of the lines to
   draw, it must be >= 0.  LEFT_P means draw a line on the
   left side of the rectangle.  RIGHT_P means draw a line
   on the right side of the rectangle.  CLIP_RECT is the clipping
   rectangle to use when drawing.  */

static void
x_draw_box_rect (struct glyph_string *s,
		 int left_x, int top_y, int right_x, int bottom_y, int hwidth,
		 int vwidth, bool left_p, bool right_p, XRectangle *clip_rect)
{
  Display *display = FRAME_X_DISPLAY (s->f);
  XGCValues xgcv;

  XGetGCValues (display, s->gc, GCForeground, &xgcv);
  XSetForeground (display, s->gc, s->face->box_color);
  x_set_clip_rectangles (s->f, s->gc, clip_rect, 1);

  /* Top.  */
  x_fill_rectangle (s->f, s->gc,
		    left_x, top_y, right_x - left_x + 1, hwidth,
		    false);

  /* Left.  */
  if (left_p)
    x_fill_rectangle (s->f, s->gc,
		      left_x, top_y, vwidth, bottom_y - top_y + 1,
		      false);

  /* Bottom.  */
  x_fill_rectangle (s->f, s->gc,
		    left_x, bottom_y - hwidth + 1, right_x - left_x + 1, hwidth,
		    false);

  /* Right.  */
  if (right_p)
    x_fill_rectangle (s->f, s->gc,
		      right_x - vwidth + 1, top_y, vwidth, bottom_y - top_y + 1,
		      false);

  XSetForeground (display, s->gc, xgcv.foreground);
  x_reset_clip_rectangles (s->f, s->gc);
}


/* Draw a box around glyph string S.  */

static void
x_draw_glyph_string_box (struct glyph_string *s)
{
  int hwidth, vwidth, left_x, right_x, top_y, bottom_y, last_x;
  bool raised_p, left_p, right_p;
  struct glyph *last_glyph;
  XRectangle clip_rect;

  last_x = ((s->row->full_width_p && !s->w->pseudo_window_p)
	    ? WINDOW_RIGHT_EDGE_X (s->w)
	    : window_box_right (s->w, s->area));

  /* The glyph that may have a right box line.  For static
     compositions and images, the right-box flag is on the first glyph
     of the glyph string; for other types it's on the last glyph.  */
  if (s->cmp || s->img)
    last_glyph = s->first_glyph;
  else if (s->first_glyph->type == COMPOSITE_GLYPH
	   && s->first_glyph->u.cmp.automatic)
    {
      /* For automatic compositions, we need to look up the last glyph
	 in the composition.  */
        struct glyph *end = s->row->glyphs[s->area] + s->row->used[s->area];
	struct glyph *g = s->first_glyph;
	for (last_glyph = g++;
	     g < end && g->u.cmp.automatic && g->u.cmp.id == s->cmp_id
	       && g->slice.cmp.to < s->cmp_to;
	     last_glyph = g++)
	  ;
    }
  else
    last_glyph = s->first_glyph + s->nchars - 1;

  vwidth = eabs (s->face->box_vertical_line_width);
  hwidth = eabs (s->face->box_horizontal_line_width);
  raised_p = s->face->box == FACE_RAISED_BOX;
  left_x = s->x;
  right_x = (s->row->full_width_p && s->extends_to_end_of_line_p
	     ? last_x - 1
	     : min (last_x, s->x + s->background_width) - 1);
  top_y = s->y;
  bottom_y = top_y + s->height - 1;

  left_p = (s->first_glyph->left_box_line_p
	    || (s->hl == DRAW_MOUSE_FACE
		&& (s->prev == NULL
		    || s->prev->hl != s->hl)));
  right_p = (last_glyph->right_box_line_p
	     || (s->hl == DRAW_MOUSE_FACE
		 && (s->next == NULL
		     || s->next->hl != s->hl)));

  get_glyph_string_clip_rect (s, &clip_rect);

  if (s->face->box == FACE_SIMPLE_BOX)
    x_draw_box_rect (s, left_x, top_y, right_x, bottom_y, hwidth,
		     vwidth, left_p, right_p, &clip_rect);
  else
    {
      x_setup_relief_colors (s);
      x_draw_relief_rect (s->f, left_x, top_y, right_x, bottom_y, hwidth,
			  vwidth, raised_p, true, true, left_p, right_p,
			  &clip_rect);
    }
}


#ifndef USE_CAIRO

static void
x_composite_image (struct glyph_string *s, Pixmap dest,
#ifdef HAVE_XRENDER
		   Picture destination,
#endif
                   int srcX, int srcY, int dstX, int dstY,
                   int width, int height)
{
  Display *display;
#ifdef HAVE_XRENDER
  XRenderPictFormat *default_format;
  XRenderPictureAttributes attr UNINIT;
#endif

  display = FRAME_X_DISPLAY (s->f);

#ifdef HAVE_XRENDER
  if (s->img->picture && FRAME_X_PICTURE_FORMAT (s->f))
    {
      if (destination == None)
	{
	  /* The destination picture was not specified.  This means we
	     have to create a picture representing the */
	  default_format = FRAME_X_PICTURE_FORMAT (s->f);
	  destination = XRenderCreatePicture (display, dest,
					      default_format, 0, &attr);

	  XRenderComposite (display, (s->img->mask_picture
				      ? PictOpOver : PictOpSrc),
			    s->img->picture, s->img->mask_picture,
			    destination, srcX, srcY, srcX, srcY,
			    dstX, dstY, width, height);

	  XRenderFreePicture (display, destination);
	}
      else
	XRenderComposite (display, (s->img->mask_picture
				    ? PictOpOver : PictOpSrc),
			  s->img->picture, s->img->mask_picture,
			  destination, srcX, srcY, srcX, srcY,
			  dstX, dstY, width, height);

      return;
    }
#endif

  XCopyArea (display, s->img->pixmap,
	     dest, s->gc,
	     srcX, srcY,
	     width, height, dstX, dstY);
}

#endif	/* !USE_CAIRO */


/* Draw foreground of image glyph string S.  */

static void
x_draw_image_foreground (struct glyph_string *s)
{
  int x = s->x;
  int y = s->ybase - image_ascent (s->img, s->face, &s->slice);

  /* If first glyph of S has a left box line, start drawing it to the
     right of that line.  */
  if (s->face->box != FACE_NO_BOX
      && s->first_glyph->left_box_line_p
      && s->slice.x == 0)
    x += max (s->face->box_vertical_line_width, 0);

  /* If there is a margin around the image, adjust x- and y-position
     by that margin.  */
  if (s->slice.x == 0)
    x += s->img->hmargin;
  if (s->slice.y == 0)
    y += s->img->vmargin;

#ifdef USE_CAIRO
  if (s->img->cr_data)
    {
      x_set_glyph_string_clipping (s);
      x_cr_draw_image (s->f, s->gc, s->img->cr_data,
		       s->slice.x, s->slice.y, s->slice.width, s->slice.height,
		       x, y, true);
      if (!s->img->mask)
	{
	  /* When the image has a mask, we can expect that at
	     least part of a mouse highlight or a block cursor will
	     be visible.  If the image doesn't have a mask, make
	     a block cursor visible by drawing a rectangle around
	     the image.  I believe it's looking better if we do
	     nothing here for mouse-face.  */
	  if (s->hl == DRAW_CURSOR)
	    {
	      int relief = eabs (s->img->relief);
	      x_draw_rectangle (s->f, s->gc, x - relief, y - relief,
				s->slice.width + relief*2 - 1,
				s->slice.height + relief*2 - 1);
	    }
	}
    }
#else  /* ! USE_CAIRO */
  if (s->img->pixmap)
    {
      if (s->img->mask)
	{
	  /* We can't set both a clip mask and use XSetClipRectangles
	     because the latter also sets a clip mask.  We also can't
	     trust on the shape extension to be available
	     (XShapeCombineRegion).  So, compute the rectangle to draw
	     manually.  */
          /* FIXME: Do we need to do this when using XRender compositing?  */
	  unsigned long mask = (GCClipMask | GCClipXOrigin | GCClipYOrigin
				| GCFunction);
	  XGCValues xgcv;
	  XRectangle clip_rect, image_rect, r;

	  xgcv.clip_mask = s->img->mask;
	  xgcv.clip_x_origin = x;
	  xgcv.clip_y_origin = y;
	  xgcv.function = GXcopy;
	  XChangeGC (FRAME_X_DISPLAY (s->f), s->gc, mask, &xgcv);

	  get_glyph_string_clip_rect (s, &clip_rect);
	  image_rect.x = x;
	  image_rect.y = y;
	  image_rect.width = s->slice.width;
	  image_rect.height = s->slice.height;
	  if (gui_intersect_rectangles (&clip_rect, &image_rect, &r))
            x_composite_image (s, FRAME_X_DRAWABLE (s->f),
#ifdef HAVE_XRENDER
			       FRAME_X_PICTURE (s->f),
#endif
			       s->slice.x + r.x - x, s->slice.y + r.y - y,
                               r.x, r.y, r.width, r.height);
	}
      else
	{
	  XRectangle clip_rect, image_rect, r;

	  get_glyph_string_clip_rect (s, &clip_rect);
	  image_rect.x = x;
	  image_rect.y = y;
	  image_rect.width = s->slice.width;
	  image_rect.height = s->slice.height;
	  if (gui_intersect_rectangles (&clip_rect, &image_rect, &r))
            x_composite_image (s, FRAME_X_DRAWABLE (s->f),
#ifdef HAVE_XRENDER
			       FRAME_X_PICTURE (s->f),
#endif
			       s->slice.x + r.x - x,
			       s->slice.y + r.y - y,
                               r.x, r.y, r.width, r.height);

	  /* When the image has a mask, we can expect that at
	     least part of a mouse highlight or a block cursor will
	     be visible.  If the image doesn't have a mask, make
	     a block cursor visible by drawing a rectangle around
	     the image.  I believe it's looking better if we do
	     nothing here for mouse-face.  */
	  if (s->hl == DRAW_CURSOR)
	    {
	      int relief = eabs (s->img->relief);
	      x_draw_rectangle (s->f, s->gc,
			      x - relief, y - relief,
			      s->slice.width + relief*2 - 1,
			      s->slice.height + relief*2 - 1);
	    }
	}
    }
#endif	/* ! USE_CAIRO */
  else
    /* Draw a rectangle if image could not be loaded.  */
    x_draw_rectangle (s->f, s->gc, x, y,
		    s->slice.width - 1, s->slice.height - 1);
}


/* Draw a relief around the image glyph string S.  */

static void
x_draw_image_relief (struct glyph_string *s)
{
  int x1, y1, thick;
  bool raised_p, top_p, bot_p, left_p, right_p;
  int extra_x, extra_y;
  XRectangle r;
  int x = s->x;
  int y = s->ybase - image_ascent (s->img, s->face, &s->slice);

  /* If first glyph of S has a left box line, start drawing it to the
     right of that line.  */
  if (s->face->box != FACE_NO_BOX
      && s->first_glyph->left_box_line_p
      && s->slice.x == 0)
    x += max (s->face->box_vertical_line_width, 0);

  /* If there is a margin around the image, adjust x- and y-position
     by that margin.  */
  if (s->slice.x == 0)
    x += s->img->hmargin;
  if (s->slice.y == 0)
    y += s->img->vmargin;

  if (s->hl == DRAW_IMAGE_SUNKEN
      || s->hl == DRAW_IMAGE_RAISED)
    {
      if (s->face->id == TAB_BAR_FACE_ID)
	thick = (tab_bar_button_relief < 0
		 ? DEFAULT_TAB_BAR_BUTTON_RELIEF
		 : min (tab_bar_button_relief, 1000000));
      else
	thick = (tool_bar_button_relief < 0
		 ? DEFAULT_TOOL_BAR_BUTTON_RELIEF
		 : min (tool_bar_button_relief, 1000000));
      raised_p = s->hl == DRAW_IMAGE_RAISED;
    }
  else
    {
      thick = eabs (s->img->relief);
      raised_p = s->img->relief > 0;
    }

  x1 = x + s->slice.width - 1;
  y1 = y + s->slice.height - 1;

  extra_x = extra_y = 0;
  if (s->face->id == TAB_BAR_FACE_ID)
    {
      if (CONSP (Vtab_bar_button_margin)
	  && FIXNUMP (XCAR (Vtab_bar_button_margin))
	  && FIXNUMP (XCDR (Vtab_bar_button_margin)))
	{
	  extra_x = XFIXNUM (XCAR (Vtab_bar_button_margin)) - thick;
	  extra_y = XFIXNUM (XCDR (Vtab_bar_button_margin)) - thick;
	}
      else if (FIXNUMP (Vtab_bar_button_margin))
	extra_x = extra_y = XFIXNUM (Vtab_bar_button_margin) - thick;
    }

  if (s->face->id == TOOL_BAR_FACE_ID)
    {
      if (CONSP (Vtool_bar_button_margin)
	  && FIXNUMP (XCAR (Vtool_bar_button_margin))
	  && FIXNUMP (XCDR (Vtool_bar_button_margin)))
	{
	  extra_x = XFIXNUM (XCAR (Vtool_bar_button_margin));
	  extra_y = XFIXNUM (XCDR (Vtool_bar_button_margin));
	}
      else if (FIXNUMP (Vtool_bar_button_margin))
	extra_x = extra_y = XFIXNUM (Vtool_bar_button_margin);
    }

  top_p = bot_p = left_p = right_p = false;

  if (s->slice.x == 0)
    x -= thick + extra_x, left_p = true;
  if (s->slice.y == 0)
    y -= thick + extra_y, top_p = true;
  if (s->slice.x + s->slice.width == s->img->width)
    x1 += thick + extra_x, right_p = true;
  if (s->slice.y + s->slice.height == s->img->height)
    y1 += thick + extra_y, bot_p = true;

  x_setup_relief_colors (s);
  get_glyph_string_clip_rect (s, &r);
  x_draw_relief_rect (s->f, x, y, x1, y1, thick, thick, raised_p,
		      top_p, bot_p, left_p, right_p, &r);
}


#ifndef USE_CAIRO
/* Draw the foreground of image glyph string S to PIXMAP.  */

static void
x_draw_image_foreground_1 (struct glyph_string *s, Pixmap pixmap)
{
  int x = 0;
  int y = s->ybase - s->y - image_ascent (s->img, s->face, &s->slice);

  /* If first glyph of S has a left box line, start drawing it to the
     right of that line.  */
  if (s->face->box != FACE_NO_BOX
      && s->first_glyph->left_box_line_p
      && s->slice.x == 0)
    x += max (s->face->box_vertical_line_width, 0);

  /* If there is a margin around the image, adjust x- and y-position
     by that margin.  */
  if (s->slice.x == 0)
    x += s->img->hmargin;
  if (s->slice.y == 0)
    y += s->img->vmargin;

  if (s->img->pixmap)
    {
      Display *display = FRAME_X_DISPLAY (s->f);

      if (s->img->mask)
	{
	  /* We can't set both a clip mask and use XSetClipRectangles
	     because the latter also sets a clip mask.  We also can't
	     trust on the shape extension to be available
	     (XShapeCombineRegion).  So, compute the rectangle to draw
	     manually.  */
          /* FIXME: Do we need to do this when using XRender compositing?  */
	  unsigned long mask = (GCClipMask | GCClipXOrigin | GCClipYOrigin
				| GCFunction);
	  XGCValues xgcv;

	  xgcv.clip_mask = s->img->mask;
	  xgcv.clip_x_origin = x - s->slice.x;
	  xgcv.clip_y_origin = y - s->slice.y;
	  xgcv.function = GXcopy;
	  XChangeGC (display, s->gc, mask, &xgcv);

	  x_composite_image (s, pixmap,
#ifdef HAVE_XRENDER
			     None,
#endif
                             s->slice.x, s->slice.y, x, y,
			     s->slice.width, s->slice.height);
	  XSetClipMask (display, s->gc, None);
	}
      else
	{
	  XCopyArea (display, s->img->pixmap, pixmap, s->gc,
		     s->slice.x, s->slice.y,
		     s->slice.width, s->slice.height, x, y);

	  /* When the image has a mask, we can expect that at
	     least part of a mouse highlight or a block cursor will
	     be visible.  If the image doesn't have a mask, make
	     a block cursor visible by drawing a rectangle around
	     the image.  I believe it's looking better if we do
	     nothing here for mouse-face.  */
	  if (s->hl == DRAW_CURSOR)
	    {
	      int r = eabs (s->img->relief);
	      x_draw_rectangle (s->f, s->gc, x - r, y - r,
			      s->slice.width + r*2 - 1,
			      s->slice.height + r*2 - 1);
	    }
	}
    }
  else
    /* Draw a rectangle if image could not be loaded.  */
    x_draw_rectangle (s->f, s->gc, x, y,
		    s->slice.width - 1, s->slice.height - 1);
}
#endif	/* ! USE_CAIRO */


/* Draw part of the background of glyph string S.  X, Y, W, and H
   give the rectangle to draw.  */

static void
x_draw_glyph_string_bg_rect (struct glyph_string *s, int x, int y, int w, int h)
{
  if (s->stippled_p)
    {
      Display *display = FRAME_X_DISPLAY (s->f);

      /* Fill background with a stipple pattern.  */
      XSetFillStyle (display, s->gc, FillOpaqueStippled);
      x_fill_rectangle (s->f, s->gc, x, y, w, h, true);
      XSetFillStyle (display, s->gc, FillSolid);
    }
  else
    x_clear_glyph_string_rect (s, x, y, w, h);
}


/* Draw image glyph string S.

            s->y
   s->x      +-------------------------
	     |   s->face->box
	     |
	     |     +-------------------------
	     |     |  s->img->margin
	     |     |
	     |     |       +-------------------
	     |     |       |  the image

 */

static void
x_draw_image_glyph_string (struct glyph_string *s)
{
  int box_line_hwidth = max (s->face->box_vertical_line_width, 0);
  int box_line_vwidth = max (s->face->box_horizontal_line_width, 0);
  int height;
#ifndef USE_CAIRO
  Display *display = FRAME_X_DISPLAY (s->f);
  Pixmap pixmap = None;
#endif

  height = s->height;
  if (s->slice.y == 0)
    height -= box_line_vwidth;
  if (s->slice.y + s->slice.height >= s->img->height)
    height -= box_line_vwidth;

  /* Fill background with face under the image.  Do it only if row is
     taller than image or if image has a clip mask to reduce
     flickering.  */
  s->stippled_p = s->face->stipple != 0;
  if (height > s->slice.height
      || s->img->hmargin
      || s->img->vmargin
      || s->img->mask
      || s->img->pixmap == 0
      || s->width != s->background_width)
    {
      if (s->stippled_p)
	s->row->stipple_p = true;

#ifndef USE_CAIRO
      if (s->img->mask)
	{
	  /* Create a pixmap as large as the glyph string.  Fill it
	     with the background color.  Copy the image to it, using
	     its mask.  Copy the temporary pixmap to the display.  */
	  int depth = FRAME_DISPLAY_INFO (s->f)->n_planes;

	  /* Create a pixmap as large as the glyph string.  */
          pixmap = XCreatePixmap (display, FRAME_X_DRAWABLE (s->f),
				  s->background_width,
				  s->height, depth);

	  /* Don't clip in the following because we're working on the
	     pixmap.  */
	  XSetClipMask (display, s->gc, None);

	  /* Fill the pixmap with the background color/stipple.  */
	  if (s->stippled_p)
	    {
	      /* Fill background with a stipple pattern.  */
	      XSetFillStyle (display, s->gc, FillOpaqueStippled);
	      XSetTSOrigin (display, s->gc, - s->x, - s->y);
	      XFillRectangle (display, pixmap, s->gc,
			      0, 0, s->background_width, s->height);
	      XSetFillStyle (display, s->gc, FillSolid);
	      XSetTSOrigin (display, s->gc, 0, 0);
	    }
	  else
	    {
	      XGCValues xgcv;
#if defined HAVE_XRENDER && (RENDER_MAJOR > 0 || (RENDER_MINOR >= 2))
	      if (FRAME_DISPLAY_INFO (s->f)->alpha_bits
		  && s->f->alpha_background != 1.0
		  && FRAME_CHECK_XR_VERSION (s->f, 0, 2)
		  && FRAME_X_PICTURE_FORMAT (s->f))
		{
		  XRenderColor xc;
		  XRenderPictureAttributes attrs;
		  Picture pict;
		  memset (&attrs, 0, sizeof attrs);

		  pict = XRenderCreatePicture (display, pixmap,
					       FRAME_X_PICTURE_FORMAT (s->f),
					       0, &attrs);
		  x_xrender_color_from_gc_background (s->f, s->gc, &xc, true);
		  XRenderFillRectangle (FRAME_X_DISPLAY (s->f), PictOpSrc, pict,
					&xc, 0, 0, s->background_width, s->height);
		  XRenderFreePicture (display, pict);
		}
	      else
#endif
		{
		  XGetGCValues (display, s->gc, GCForeground | GCBackground,
				&xgcv);
		  XSetForeground (display, s->gc, xgcv.background);
		  XFillRectangle (display, pixmap, s->gc,
				  0, 0, s->background_width, s->height);
		  XSetForeground (display, s->gc, xgcv.foreground);
		}
	    }
	}
      else
#endif	/* ! USE_CAIRO */
	{
	  int x = s->x;
	  int y = s->y;
	  int width = s->background_width;

	  if (s->first_glyph->left_box_line_p
	      && s->slice.x == 0)
	    {
	      x += box_line_hwidth;
	      width -= box_line_hwidth;
	    }

	  if (s->slice.y == 0)
	    y += box_line_vwidth;

	  x_draw_glyph_string_bg_rect (s, x, y, width, height);
	}

      s->background_filled_p = true;
    }

  /* Draw the foreground.  */
#ifndef USE_CAIRO
  if (pixmap != None)
    {
      x_draw_image_foreground_1 (s, pixmap);
      x_set_glyph_string_clipping (s);
      XCopyArea (display, pixmap, FRAME_X_DRAWABLE (s->f), s->gc,
		 0, 0, s->background_width, s->height, s->x, s->y);
      XFreePixmap (display, pixmap);
    }
  else
#endif	/* ! USE_CAIRO */
    x_draw_image_foreground (s);

  /* If we must draw a relief around the image, do it.  */
  if (s->img->relief
      || s->hl == DRAW_IMAGE_RAISED
      || s->hl == DRAW_IMAGE_SUNKEN)
    x_draw_image_relief (s);
}


/* Draw stretch glyph string S.  */

static void
x_draw_stretch_glyph_string (struct glyph_string *s)
{
  eassert (s->first_glyph->type == STRETCH_GLYPH);

  if (s->hl == DRAW_CURSOR
      && !x_stretch_cursor_p)
    {
      /* If `x-stretch-cursor' is nil, don't draw a block cursor as
	 wide as the stretch glyph.  */
      int width, background_width = s->background_width;
      int x = s->x;

      if (!s->row->reversed_p)
	{
	  int left_x = window_box_left_offset (s->w, TEXT_AREA);

	  if (x < left_x)
	    {
	      background_width -= left_x - x;
	      x = left_x;
	    }
	}
      else
	{
	  /* In R2L rows, draw the cursor on the right edge of the
	     stretch glyph.  */
	  int right_x = window_box_right (s->w, TEXT_AREA);

	  if (x + background_width > right_x)
	    background_width -= x - right_x;
	  x += background_width;
	}
      width = min (FRAME_COLUMN_WIDTH (s->f), background_width);
      if (s->row->reversed_p)
	x -= width;

      /* Draw cursor.  */
      x_draw_glyph_string_bg_rect (s, x, s->y, width, s->height);

      /* Clear rest using the GC of the original non-cursor face.  */
      if (width < background_width)
	{
	  int y = s->y;
	  int w = background_width - width, h = s->height;
          Display *display = FRAME_X_DISPLAY (s->f);
	  XRectangle r;
	  GC gc;

	  if (!s->row->reversed_p)
	    x += width;
	  else
	    x = s->x;
	  if (s->row->mouse_face_p
	      && cursor_in_mouse_face_p (s->w))
	    {
	      x_set_mouse_face_gc (s);
	      gc = s->gc;
	    }
	  else
	    gc = s->face->gc;

	  get_glyph_string_clip_rect (s, &r);
	  x_set_clip_rectangles (s->f, gc, &r, 1);

	  if (s->face->stipple)
	    {
	      /* Fill background with a stipple pattern.  */
	      XSetFillStyle (display, gc, FillOpaqueStippled);
	      x_fill_rectangle (s->f, gc, x, y, w, h, true);
	      XSetFillStyle (display, gc, FillSolid);

	      s->row->stipple_p = true;
	    }
	  else
	    {
	      XGCValues xgcv;
	      XGetGCValues (display, gc, GCForeground | GCBackground, &xgcv);
	      XSetForeground (display, gc, xgcv.background);
	      x_fill_rectangle (s->f, gc, x, y, w, h, true);
	      XSetForeground (display, gc, xgcv.foreground);
	    }

	  x_reset_clip_rectangles (s->f, gc);
	}
    }
  else if (!s->background_filled_p)
    {
      int background_width = s->background_width;
      int x = s->x, text_left_x = window_box_left (s->w, TEXT_AREA);

      /* Don't draw into left fringe or scrollbar area except for
         header line and mode line.  */
      if (s->area == TEXT_AREA
	  && x < text_left_x && !s->row->mode_line_p)
	{
	  background_width -= text_left_x - x;
	  x = text_left_x;
	}

      if (!s->row->stipple_p)
	s->row->stipple_p = s->stippled_p;

      if (background_width > 0)
	x_draw_glyph_string_bg_rect (s, x, s->y,
				     background_width, s->height);
    }

  s->background_filled_p = true;
}

static void
x_get_scale_factor (Display *disp, int *scale_x, int *scale_y)
{
  const int base_res = 96;
  struct x_display_info * dpyinfo = x_display_info_for_display (disp);

  *scale_x = *scale_y = 1;

  if (dpyinfo)
    {
      if (dpyinfo->resx > base_res)
	*scale_x = floor (dpyinfo->resx / base_res);
      if (dpyinfo->resy > base_res)
	*scale_y = floor (dpyinfo->resy / base_res);
    }
}

/*
   Draw a wavy line under S. The wave fills wave_height pixels from y0.

                    x0         wave_length = 2
                                 --
                y0   *   *   *   *   *
                     |* * * * * * * * *
    wave_height = 3  | *   *   *   *

*/
static void
x_draw_underwave (struct glyph_string *s, int decoration_width)
{
  Display *display = FRAME_X_DISPLAY (s->f);

  /* Adjust for scale/HiDPI.  */
  int scale_x, scale_y;

  x_get_scale_factor (display, &scale_x, &scale_y);

  int wave_height = 3 * scale_y, wave_length = 2 * scale_x;

#ifdef USE_CAIRO
  x_draw_horizontal_wave (s->f, s->gc, s->x, s->ybase - wave_height + 3,
			  decoration_width, wave_height, wave_length);
#else  /* not USE_CAIRO */
  int dx, dy, x0, y0, width, x1, y1, x2, y2, xmax, thickness = scale_y;;
  bool odd;
  XRectangle wave_clip, string_clip, final_clip;

  dx = wave_length;
  dy = wave_height - 1;
  x0 = s->x;
  y0 = s->ybase + wave_height / 2 - scale_y;
  width = decoration_width;
  xmax = x0 + width;

  /* Find and set clipping rectangle */

  wave_clip.x = x0;
  wave_clip.y = y0;
  wave_clip.width = width;
  wave_clip.height = wave_height;
  get_glyph_string_clip_rect (s, &string_clip);

  if (!gui_intersect_rectangles (&wave_clip, &string_clip, &final_clip))
    return;

  XSetClipRectangles (display, s->gc, 0, 0, &final_clip, 1, Unsorted);

  /* Draw the waves */

  x1 = x0 - (x0 % dx);
  x2 = x1 + dx;
  odd = (x1 / dx) & 1;
  y1 = y2 = y0;

  if (odd)
    y1 += dy;
  else
    y2 += dy;

  if (INT_MAX - dx < xmax)
    emacs_abort ();

  while (x1 <= xmax)
    {
      XSetLineAttributes (display, s->gc, thickness, LineSolid, CapButt,
                          JoinRound);
      XDrawLine (display, FRAME_X_DRAWABLE (s->f), s->gc, x1, y1, x2, y2);
      x1  = x2, y1 = y2;
      x2 += dx, y2 = y0 + odd*dy;
      odd = !odd;
    }

  /* Restore previous clipping rectangle(s) */
  XSetClipRectangles (display, s->gc, 0, 0, s->clip, s->num_clips, Unsorted);
#endif	/* not USE_CAIRO */
}


/* Draw glyph string S.  */

static void
x_draw_glyph_string (struct glyph_string *s)
{
  bool relief_drawn_p = false;

  /* If S draws into the background of its successors, draw the
     background of the successors first so that S can draw into it.
     This makes S->next use XDrawString instead of XDrawImageString.  */
  if (s->next && s->right_overhang && !s->for_overlaps)
    {
      int width;
      struct glyph_string *next;

      for (width = 0, next = s->next;
	   next && width < s->right_overhang;
	   width += next->width, next = next->next)
	if (next->first_glyph->type != IMAGE_GLYPH)
	  {
	    x_set_glyph_string_gc (next);
	    x_set_glyph_string_clipping (next);
	    if (next->first_glyph->type == STRETCH_GLYPH)
	      x_draw_stretch_glyph_string (next);
	    else
	      x_draw_glyph_string_background (next, true);
	    next->num_clips = 0;
	  }
    }

  /* Set up S->gc, set clipping and draw S.  */
  x_set_glyph_string_gc (s);

  /* Draw relief (if any) in advance for char/composition so that the
     glyph string can be drawn over it.  */
  if (!s->for_overlaps
      && s->face->box != FACE_NO_BOX
      && (s->first_glyph->type == CHAR_GLYPH
	  || s->first_glyph->type == COMPOSITE_GLYPH))

    {
      x_set_glyph_string_clipping (s);
      x_draw_glyph_string_background (s, true);
      x_draw_glyph_string_box (s);
      x_set_glyph_string_clipping (s);
      relief_drawn_p = true;
    }
  else if (!s->clip_head /* draw_glyphs didn't specify a clip mask. */
	   && !s->clip_tail
	   && ((s->prev && s->prev->hl != s->hl && s->left_overhang)
	       || (s->next && s->next->hl != s->hl && s->right_overhang)))
    /* We must clip just this glyph.  left_overhang part has already
       drawn when s->prev was drawn, and right_overhang part will be
       drawn later when s->next is drawn. */
    x_set_glyph_string_clipping_exactly (s, s);
  else
    x_set_glyph_string_clipping (s);

  switch (s->first_glyph->type)
    {
    case IMAGE_GLYPH:
      x_draw_image_glyph_string (s);
      break;

    case XWIDGET_GLYPH:
      x_draw_xwidget_glyph_string (s);
      break;

    case STRETCH_GLYPH:
      x_draw_stretch_glyph_string (s);
      break;

    case CHAR_GLYPH:
      if (s->for_overlaps)
	s->background_filled_p = true;
      else
	x_draw_glyph_string_background (s, false);
      x_draw_glyph_string_foreground (s);
      break;

    case COMPOSITE_GLYPH:
      if (s->for_overlaps || (s->cmp_from > 0
			      && ! s->first_glyph->u.cmp.automatic))
	s->background_filled_p = true;
      else
	x_draw_glyph_string_background (s, true);
      x_draw_composite_glyph_string_foreground (s);
      break;

    case GLYPHLESS_GLYPH:
      if (s->for_overlaps)
	s->background_filled_p = true;
      else
	x_draw_glyph_string_background (s, true);
      x_draw_glyphless_glyph_string_foreground (s);
      break;

    default:
      emacs_abort ();
    }

  if (!s->for_overlaps)
    {
      int area_x, area_y, area_width, area_height;
      int area_max_x, decoration_width;

      /* Prevent the underline from overwriting surrounding areas
	 and the fringe.  */
      window_box (s->w, s->area, &area_x, &area_y,
		  &area_width, &area_height);
      area_max_x = area_x + area_width - 1;

      decoration_width = s->width;
      if (!s->row->mode_line_p
	  && !s->row->tab_line_p
	  && area_max_x < (s->x + decoration_width - 1))
	decoration_width -= (s->x + decoration_width - 1) - area_max_x;

      /* Draw relief if not yet drawn.  */
      if (!relief_drawn_p && s->face->box != FACE_NO_BOX)
	x_draw_glyph_string_box (s);

      /* Draw underline.  */
      if (s->face->underline)
        {
          if (s->face->underline == FACE_UNDERLINE_WAVE)
            {
              if (s->face->underline_defaulted_p)
                x_draw_underwave (s, decoration_width);
              else
                {
                  Display *display = FRAME_X_DISPLAY (s->f);
                  XGCValues xgcv;
                  XGetGCValues (display, s->gc, GCForeground, &xgcv);
                  XSetForeground (display, s->gc, s->face->underline_color);
                  x_draw_underwave (s, decoration_width);
                  XSetForeground (display, s->gc, xgcv.foreground);
                }
            }
          else if (s->face->underline == FACE_UNDERLINE_SINGLE)
            {
              unsigned long thickness, position;
              int y;

              if (s->prev
		  && s->prev->face->underline == FACE_UNDERLINE_SINGLE
		  && (s->prev->face->underline_at_descent_line_p
		      == s->face->underline_at_descent_line_p)
		  && (s->prev->face->underline_pixels_above_descent_line
		      == s->face->underline_pixels_above_descent_line))
                {
                  /* We use the same underline style as the previous one.  */
                  thickness = s->prev->underline_thickness;
                  position = s->prev->underline_position;
                }
              else
                {
		  struct font *font = font_for_underline_metrics (s);
		  unsigned long minimum_offset;
		  bool underline_at_descent_line;
		  bool use_underline_position_properties;
		  Lisp_Object val = (WINDOW_BUFFER_LOCAL_VALUE
				     (Qunderline_minimum_offset, s->w));

		  if (FIXNUMP (val))
		    minimum_offset = max (0, XFIXNUM (val));
		  else
		    minimum_offset = 1;

		  val = (WINDOW_BUFFER_LOCAL_VALUE
			 (Qx_underline_at_descent_line, s->w));
		  underline_at_descent_line
		    = (!(NILP (val) || BASE_EQ (val, Qunbound))
		       || s->face->underline_at_descent_line_p);

		  val = (WINDOW_BUFFER_LOCAL_VALUE
			 (Qx_use_underline_position_properties, s->w));
		  use_underline_position_properties
		    = !(NILP (val) || BASE_EQ (val, Qunbound));

                  /* Get the underline thickness.  Default is 1 pixel.  */
                  if (font && font->underline_thickness > 0)
                    thickness = font->underline_thickness;
                  else
                    thickness = 1;
                  if (underline_at_descent_line)
		    position = ((s->height - thickness)
				- (s->ybase - s->y)
				- s->face->underline_pixels_above_descent_line);
                  else
                    {
                      /* Get the underline position.  This is the
                         recommended vertical offset in pixels from
                         the baseline to the top of the underline.
                         This is a signed value according to the
                         specs, and its default is

                         ROUND ((maximum descent) / 2), with
                         ROUND(x) = floor (x + 0.5)  */

                      if (use_underline_position_properties
                          && font && font->underline_position >= 0)
                        position = font->underline_position;
                      else if (font)
                        position = (font->descent + 1) / 2;
                      else
                        position = minimum_offset;
                    }

		  /* Ignore minimum_offset if the amount of pixels was
		     explicitly specified.  */
		  if (!s->face->underline_pixels_above_descent_line)
		    position = max (position, minimum_offset);
                }
              /* Check the sanity of thickness and position.  We should
                 avoid drawing underline out of the current line area.  */
	      if (s->y + s->height <= s->ybase + position)
		position = (s->height - 1) - (s->ybase - s->y);
              if (s->y + s->height < s->ybase + position + thickness)
                thickness = (s->y + s->height) - (s->ybase + position);
              s->underline_thickness = thickness;
              s->underline_position = position;
              y = s->ybase + position;
              if (s->face->underline_defaulted_p)
                x_fill_rectangle (s->f, s->gc,
				  s->x, y, decoration_width, thickness,
				  false);
              else
                {
                  Display *display = FRAME_X_DISPLAY (s->f);
                  XGCValues xgcv;
                  XGetGCValues (display, s->gc, GCForeground, &xgcv);
                  XSetForeground (display, s->gc, s->face->underline_color);
                  x_fill_rectangle (s->f, s->gc,
				    s->x, y, decoration_width, thickness,
				    false);
                  XSetForeground (display, s->gc, xgcv.foreground);
                }
            }
        }
      /* Draw overline.  */
      if (s->face->overline_p)
	{
	  unsigned long dy = 0, h = 1;

	  if (s->face->overline_color_defaulted_p)
	    x_fill_rectangle (s->f, s->gc, s->x, s->y + dy,
			      decoration_width, h, false);
	  else
	    {
              Display *display = FRAME_X_DISPLAY (s->f);
	      XGCValues xgcv;
	      XGetGCValues (display, s->gc, GCForeground, &xgcv);
	      XSetForeground (display, s->gc, s->face->overline_color);
	      x_fill_rectangle (s->f, s->gc, s->x, s->y + dy,
				decoration_width, h, false);
	      XSetForeground (display, s->gc, xgcv.foreground);
	    }
	}

      /* Draw strike-through.  */
      if (s->face->strike_through_p)
	{
	  /* Y-coordinate and height of the glyph string's first
	     glyph.  We cannot use s->y and s->height because those
	     could be larger if there are taller display elements
	     (e.g., characters displayed with a larger font) in the
	     same glyph row.  */
	  int glyph_y = s->ybase - s->first_glyph->ascent;
	  int glyph_height = s->first_glyph->ascent + s->first_glyph->descent;
	  /* Strike-through width and offset from the glyph string's
	     top edge.  */
          unsigned long h = 1;
          unsigned long dy = (glyph_height - h) / 2;

	  if (s->face->strike_through_color_defaulted_p)
	    x_fill_rectangle (s->f, s->gc, s->x, glyph_y + dy,
			      s->width, h, false);
	  else
	    {
              Display *display = FRAME_X_DISPLAY (s->f);
	      XGCValues xgcv;
	      XGetGCValues (display, s->gc, GCForeground, &xgcv);
	      XSetForeground (display, s->gc, s->face->strike_through_color);
	      x_fill_rectangle (s->f, s->gc, s->x, glyph_y + dy,
				decoration_width, h, false);
	      XSetForeground (display, s->gc, xgcv.foreground);
	    }
	}

      if (s->prev)
	{
	  struct glyph_string *prev;

	  for (prev = s->prev; prev; prev = prev->prev)
	    if (prev->hl != s->hl
		&& prev->x + prev->width + prev->right_overhang > s->x)
	      {
		/* As prev was drawn while clipped to its own area, we
		   must draw the right_overhang part using s->hl now.  */
		enum draw_glyphs_face save = prev->hl;

		prev->hl = s->hl;
		x_set_glyph_string_gc (prev);
		x_set_glyph_string_clipping_exactly (s, prev);
		if (prev->first_glyph->type == CHAR_GLYPH)
		  x_draw_glyph_string_foreground (prev);
		else
		  x_draw_composite_glyph_string_foreground (prev);
		x_reset_clip_rectangles (prev->f, prev->gc);
		prev->hl = save;
		prev->num_clips = 0;
	      }
	}

      if (s->next)
	{
	  struct glyph_string *next;

	  for (next = s->next; next; next = next->next)
	    if (next->hl != s->hl
		&& next->x - next->left_overhang < s->x + s->width)
	      {
		/* As next will be drawn while clipped to its own area,
		   we must draw the left_overhang part using s->hl now.  */
		enum draw_glyphs_face save = next->hl;

		next->hl = s->hl;
		x_set_glyph_string_gc (next);
		x_set_glyph_string_clipping_exactly (s, next);
		if (next->first_glyph->type == CHAR_GLYPH)
		  x_draw_glyph_string_foreground (next);
		else
		  x_draw_composite_glyph_string_foreground (next);
		x_reset_clip_rectangles (next->f, next->gc);
		next->hl = save;
		next->num_clips = 0;
		next->clip_head = s->next;
	      }
	}
    }

  /* Reset clipping.  */
  x_reset_clip_rectangles (s->f, s->gc);
  s->num_clips = 0;

  /* Set the stippled flag that tells redisplay whether or not a
     stipple was actually draw.  */

  if (s->first_glyph->type != STRETCH_GLYPH
      && s->first_glyph->type != IMAGE_GLYPH
      && !s->row->stipple_p)
    s->row->stipple_p = s->stippled_p;
}

/* Shift display to make room for inserted glyphs.   */

static void
x_shift_glyphs_for_insert (struct frame *f, int x, int y, int width, int height, int shift_by)
{
/* Never called on a GUI frame, see
   https://lists.gnu.org/r/emacs-devel/2015-05/msg00456.html
*/
  XCopyArea (FRAME_X_DISPLAY (f), FRAME_X_DRAWABLE (f), FRAME_X_DRAWABLE (f),
	     f->output_data.x->normal_gc,
	     x, y, width, height,
	     x + shift_by, y);
}

/* Delete N glyphs at the nominal cursor position.  Not implemented
   for X frames.  */

static void
x_delete_glyphs (struct frame *f, int n)
{
  emacs_abort ();
}


/* Like XClearArea, but check that WIDTH and HEIGHT are reasonable.
   If they are <= 0, this is probably an error.  */

#if defined USE_GTK || !defined USE_CAIRO
static void
x_clear_area1 (Display *dpy, Window window,
               int x, int y, int width, int height, int exposures)
{
  eassert (width > 0 && height > 0);
  XClearArea (dpy, window, x, y, width, height, exposures);
}
#endif

void
x_clear_area (struct frame *f, int x, int y, int width, int height)
{
#ifdef USE_CAIRO
  cairo_t *cr;

  eassert (width > 0 && height > 0);

  cr = x_begin_cr_clip (f, NULL);
  x_set_cr_source_with_gc_background (f, f->output_data.x->normal_gc,
				      true);
  cairo_rectangle (cr, x, y, width, height);
  cairo_fill (cr);
  x_end_cr_clip (f);
#else
#ifndef USE_GTK
  if (f->alpha_background != 1.0
#ifdef HAVE_XDBE
      || FRAME_X_DOUBLE_BUFFERED_P (f)
#endif
      )
#endif
    {
#if defined HAVE_XRENDER && \
  (RENDER_MAJOR > 0 || (RENDER_MINOR >= 2))
      x_xr_ensure_picture (f);
      if (FRAME_DISPLAY_INFO (f)->alpha_bits
	  && FRAME_X_PICTURE (f) != None
	  && f->alpha_background != 1.0
	  && FRAME_CHECK_XR_VERSION (f, 0, 2))
	{
	  XRenderColor xc;
	  GC gc = f->output_data.x->normal_gc;

	  x_xr_apply_ext_clip (f, gc);
	  x_xrender_color_from_gc_background (f, gc, &xc, true);
	  XRenderFillRectangle (FRAME_X_DISPLAY (f),
				PictOpSrc, FRAME_X_PICTURE (f),
				&xc, x, y, width, height);
	  x_xr_reset_ext_clip (f);
	  x_mark_frame_dirty (f);
	}
      else
#endif
	XFillRectangle (FRAME_X_DISPLAY (f),
			FRAME_X_DRAWABLE (f),
			f->output_data.x->reverse_gc,
			x, y, width, height);
    }
#ifndef USE_GTK
  else
    x_clear_area1 (FRAME_X_DISPLAY (f), FRAME_X_WINDOW (f),
                   x, y, width, height, False);
#endif
#endif
}


/* Clear an entire frame.  */

static void
x_clear_frame (struct frame *f)
{
  /* Clearing the frame will erase any cursor, so mark them all as no
     longer visible.  */
  mark_window_cursors_off (XWINDOW (FRAME_ROOT_WINDOW (f)));

  block_input ();
  font_drop_xrender_surfaces (f);
  x_clear_window (f);

  /* We have to clear the scroll bars.  If we have changed colors or
     something like that, then they should be notified.  */
  x_scroll_bar_clear (f);

  unblock_input ();
}

/* Send a message to frame F telling the event loop to track whether
   or not an hourglass is being displayed.  This is required to ignore
   the right events when the hourglass is mapped without calling XSync
   after displaying or hiding the hourglass.  */

static void
x_send_hourglass_message (struct frame *f, bool hourglass_enabled)
{
  struct x_display_info *dpyinfo;
  XEvent msg;

  dpyinfo = FRAME_DISPLAY_INFO (f);
  memset (&msg, 0, sizeof msg);

  msg.xclient.type = ClientMessage;
  msg.xclient.message_type
    = dpyinfo->Xatom_EMACS_TMP;
  msg.xclient.format = 8;
  msg.xclient.window = FRAME_X_WINDOW (f);
  msg.xclient.data.b[0] = hourglass_enabled ? 1 : 0;

  XSendEvent (dpyinfo->display, FRAME_X_WINDOW (f),
	      False, NoEventMask, &msg);
}

/* RIF: Show hourglass cursor on frame F.  */

static void
x_show_hourglass (struct frame *f)
{
  Display *dpy = FRAME_X_DISPLAY (f);

  if (dpy)
    {
      struct x_output *x = FRAME_X_OUTPUT (f);

      /* If the hourglass window is mapped inside a popup menu, input
	 could be lost if the menu is popped down and the grab is
	 relinquished, but the hourglass window is still up.  Just
	 avoid displaying the hourglass at all while popups are
	 active.  */

      if (popup_activated ())
	return;

      x_send_hourglass_message (f, true);

#ifdef USE_X_TOOLKIT
      if (x->widget)
#else
      if (FRAME_OUTER_WINDOW (f))
#endif
       {
         if (!x->hourglass_window)
           {
#ifndef USE_XCB
	     unsigned long mask = CWCursor;
	     XSetWindowAttributes attrs;
#ifdef USE_GTK
             Window parent = FRAME_X_WINDOW (f);
#else
             Window parent = FRAME_OUTER_WINDOW (f);
#endif
	     attrs.cursor = x->hourglass_cursor;

             x->hourglass_window = XCreateWindow
               (dpy, parent, 0, 0, 32000, 32000, 0, 0,
                InputOnly, CopyFromParent, mask, &attrs);
#else
	     uint32_t cursor = (uint32_t) x->hourglass_cursor;
#ifdef USE_GTK
             xcb_window_t parent = (xcb_window_t) FRAME_X_WINDOW (f);
#else
             xcb_window_t parent = (xcb_window_t) FRAME_OUTER_WINDOW (f);
#endif
	     x->hourglass_window
	       = (Window) xcb_generate_id (FRAME_DISPLAY_INFO (f)->xcb_connection);

	     xcb_create_window (FRAME_DISPLAY_INFO (f)->xcb_connection,
				XCB_COPY_FROM_PARENT,
				(xcb_window_t) x->hourglass_window,
				parent, 0, 0, FRAME_PIXEL_WIDTH (f),
				FRAME_PIXEL_HEIGHT (f), 0,
				XCB_WINDOW_CLASS_INPUT_ONLY,
				XCB_COPY_FROM_PARENT, XCB_CW_CURSOR,
				&cursor);
#endif
           }

#ifndef USE_XCB
         XMapRaised (dpy, x->hourglass_window);
	 /* Ensure that the spinning hourglass is shown.  */
	 flush_frame (f);
#else
	 uint32_t value = XCB_STACK_MODE_ABOVE;

	 xcb_configure_window (FRAME_DISPLAY_INFO (f)->xcb_connection,
			       (xcb_window_t) x->hourglass_window,
			       XCB_CONFIG_WINDOW_STACK_MODE, &value);
	 xcb_map_window (FRAME_DISPLAY_INFO (f)->xcb_connection,
			 (xcb_window_t) x->hourglass_window);
	 xcb_flush (FRAME_DISPLAY_INFO (f)->xcb_connection);
#endif
       }
    }
}

/* RIF: Cancel hourglass cursor on frame F.  */

static void
x_hide_hourglass (struct frame *f)
{
  struct x_output *x = FRAME_X_OUTPUT (f);

  /* Watch out for newly created frames.  */
  if (x->hourglass_window)
    {
#ifndef USE_XCB
      XUnmapWindow (FRAME_X_DISPLAY (f), x->hourglass_window);
#else
      xcb_unmap_window (FRAME_DISPLAY_INFO (f)->xcb_connection,
			(xcb_window_t) x->hourglass_window);
#endif
      x_send_hourglass_message (f, false);
    }
}

/* Invert the middle quarter of the frame for .15 sec.  */

static void
XTflash (struct frame *f)
{
  GC gc;
  XGCValues values;
  fd_set fds;
  int fd, rc;

  block_input ();

  if (FRAME_X_VISUAL_INFO (f)->class == TrueColor)
    {
      values.function = GXxor;
      values.foreground = (FRAME_FOREGROUND_PIXEL (f)
			   ^ FRAME_BACKGROUND_PIXEL (f));

      gc = XCreateGC (FRAME_X_DISPLAY (f), FRAME_X_WINDOW (f),
		      GCFunction | GCForeground, &values);
    }
  else
    gc = FRAME_X_OUTPUT (f)->normal_gc;


  /* Get the height not including a menu bar widget.  */
  int height = FRAME_PIXEL_HEIGHT (f);
  /* Height of each line to flash.  */
  int flash_height = FRAME_LINE_HEIGHT (f);
  /* These will be the left and right margins of the rectangles.  */
  int flash_left = FRAME_INTERNAL_BORDER_WIDTH (f);
  int flash_right = FRAME_PIXEL_WIDTH (f) - FRAME_INTERNAL_BORDER_WIDTH (f);
  int width = flash_right - flash_left;

  /* If window is tall, flash top and bottom line.  */
  if (height > 3 * FRAME_LINE_HEIGHT (f))
    {
      XFillRectangle (FRAME_X_DISPLAY (f), FRAME_X_WINDOW (f), gc,
		      flash_left,
		      (FRAME_INTERNAL_BORDER_WIDTH (f)
		       + FRAME_TOP_MARGIN_HEIGHT (f)),
		      width, flash_height);
      XFillRectangle (FRAME_X_DISPLAY (f), FRAME_X_WINDOW (f), gc,
		      flash_left,
		      (height - flash_height
		       - FRAME_INTERNAL_BORDER_WIDTH (f)
		       - FRAME_BOTTOM_MARGIN_HEIGHT (f)),
		      width, flash_height);

    }
  else
    /* If it is short, flash it all.  */
    XFillRectangle (FRAME_X_DISPLAY (f), FRAME_X_WINDOW (f), gc,
		    flash_left, FRAME_INTERNAL_BORDER_WIDTH (f),
		    width, height - 2 * FRAME_INTERNAL_BORDER_WIDTH (f));

  x_flush (f);

  struct timespec delay = make_timespec (0, 150 * 1000 * 1000);
  struct timespec wakeup = timespec_add (current_timespec (), delay);
  fd = ConnectionNumber (FRAME_X_DISPLAY (f));

  /* Keep waiting until past the time wakeup or any input gets
     available.  */
  while (! detect_input_pending ())
    {
      struct timespec current = current_timespec ();
      struct timespec timeout;

      /* Break if result would not be positive.  */
      if (timespec_cmp (wakeup, current) <= 0)
	break;

      /* How long `select' should wait.  */
      timeout = make_timespec (0, 10 * 1000 * 1000);

      /* Wait for some input to become available on the X
	 connection.  */
      FD_ZERO (&fds);
      FD_SET (fd, &fds);

      /* Try to wait that long--but we might wake up sooner.  */
      rc = pselect (fd + 1, &fds, NULL, NULL, &timeout, NULL);

      /* Some input is available, exit the visible bell.  */
      if (rc >= 0 && FD_ISSET (fd, &fds))
	break;
    }

  /* If window is tall, flash top and bottom line.  */
  if (height > 3 * FRAME_LINE_HEIGHT (f))
    {
      XFillRectangle (FRAME_X_DISPLAY (f), FRAME_X_WINDOW (f), gc,
		      flash_left,
		      (FRAME_INTERNAL_BORDER_WIDTH (f)
		       + FRAME_TOP_MARGIN_HEIGHT (f)),
		      width, flash_height);
      XFillRectangle (FRAME_X_DISPLAY (f), FRAME_X_WINDOW (f), gc,
		      flash_left,
		      (height - flash_height
		       - FRAME_INTERNAL_BORDER_WIDTH (f)
		       - FRAME_BOTTOM_MARGIN_HEIGHT (f)),
		      width, flash_height);
    }
  else
    /* If it is short, flash it all.  */
    XFillRectangle (FRAME_X_DISPLAY (f), FRAME_X_WINDOW (f), gc,
		    flash_left, FRAME_INTERNAL_BORDER_WIDTH (f),
		    width, height - 2 * FRAME_INTERNAL_BORDER_WIDTH (f));

  if (FRAME_X_VISUAL_INFO (f)->class == TrueColor)
    XFreeGC (FRAME_X_DISPLAY (f), gc);
  x_flush (f);

  unblock_input ();
}

/* Make audible bell.  */

static void
XTring_bell (struct frame *f)
{
  struct x_display_info *dpyinfo;

  if (!FRAME_X_DISPLAY (f))
    return;

  dpyinfo = FRAME_DISPLAY_INFO (f);

  if (visible_bell)
    XTflash (f);
  else
    {
      /* When Emacs is untrusted, Bell requests sometimes generate
	 Access errors.  This is not in the security extension
	 specification but seems to be a bug in the X consortium XKB
	 implementation.  */

      block_input ();
      x_ignore_errors_for_next_request (dpyinfo, 0);
#ifdef HAVE_XKB
      XkbBell (FRAME_X_DISPLAY (f), FRAME_X_WINDOW (f), 0, None);
#else
      XBell (FRAME_X_DISPLAY (f), 0);
#endif
      XFlush (FRAME_X_DISPLAY (f));
      x_stop_ignoring_errors (dpyinfo);
      unblock_input ();
    }
}

/***********************************************************************
			      Line Dance
 ***********************************************************************/

/* Perform an insert-lines or delete-lines operation, inserting N
   lines or deleting -N lines at vertical position VPOS.  */

static void
x_ins_del_lines (struct frame *f, int vpos, int n)
{
  emacs_abort ();
}


/* Scroll part of the display as described by RUN.  */

static void
x_scroll_run (struct window *w, struct run *run)
{
  struct frame *f = XFRAME (w->frame);
  int x, y, width, height, from_y, to_y, bottom_y;

  /* Get frame-relative bounding box of the text display area of W,
     without mode lines.  Include in this box the left and right
     fringe of W.  */
  window_box (w, ANY_AREA, &x, &y, &width, &height);

  from_y = WINDOW_TO_FRAME_PIXEL_Y (w, run->current_y);
  to_y = WINDOW_TO_FRAME_PIXEL_Y (w, run->desired_y);
  bottom_y = y + height;

  if (to_y < from_y)
    {
      /* Scrolling up.  Make sure we don't copy part of the mode
	 line at the bottom.  */
      if (from_y + run->height > bottom_y)
	height = bottom_y - from_y;
      else
	height = run->height;
    }
  else
    {
      /* Scrolling down.  Make sure we don't copy over the mode line.
	 at the bottom.  */
      if (to_y + run->height > bottom_y)
	height = bottom_y - to_y;
      else
	height = run->height;
    }

  block_input ();

  /* Cursor off.  Will be switched on again in gui_update_window_end.  */
  gui_clear_cursor (w);

#ifdef HAVE_XWIDGETS
  /* "Copy" xwidget windows in the area that will be scrolled.  */
  Display *dpy = FRAME_X_DISPLAY (f);
  Window window = FRAME_X_WINDOW (f);

  Window root, parent, *children;
  unsigned int nchildren;

  if (XQueryTree (dpy, window, &root, &parent, &children, &nchildren))
    {
      /* Now find xwidget views situated between from_y and to_y, and
	 attached to w.  */
      for (unsigned int i = 0; i < nchildren; ++i)
	{
	  Window child = children[i];
	  struct xwidget_view *view = xwidget_view_from_window (child);

	  if (view && !view->hidden)
	    {
	      int window_y = view->y + view->clip_top;
	      int window_height = view->clip_bottom - view->clip_top;

	      Emacs_Rectangle r1, r2, result;
	      r1.x = w->pixel_left;
	      r1.y = from_y;
	      r1.width = w->pixel_width;
	      r1.height = height;
	      r2 = r1;
	      r2.y = window_y;
	      r2.height = window_height;

	      /* The window is offscreen, just unmap it.  */
	      if (window_height == 0)
		{
		  view->hidden = true;
		  XUnmapWindow (dpy, child);
		  continue;
		}

	      bool intersects_p =
		gui_intersect_rectangles (&r1, &r2, &result);

	      if (XWINDOW (view->w) == w && intersects_p)
		{
		  int y = view->y + (to_y - from_y);
		  int text_area_x, text_area_y, text_area_width, text_area_height;
		  int clip_top, clip_bottom;

		  window_box (w, view->area, &text_area_x, &text_area_y,
			      &text_area_width, &text_area_height);

		  view->y = y;

		  clip_top = 0;
		  clip_bottom = XXWIDGET (view->model)->height;

		  if (y < text_area_y)
		    clip_top = text_area_y - y;

		  if ((y + clip_bottom) > (text_area_y + text_area_height))
		    {
		      clip_bottom -= (y + clip_bottom) - (text_area_y + text_area_height);
		    }

		  view->clip_top = clip_top;
		  view->clip_bottom = clip_bottom;

		  /* This means the view has moved offscreen.  Unmap
		     it and hide it here.  */
		  if ((view->clip_bottom - view->clip_top) <= 0)
		    {
		      view->hidden = true;
		      XUnmapWindow (dpy, child);
		    }
		  else
		    {
		      XMoveResizeWindow (dpy, child, view->x + view->clip_left,
					 view->y + view->clip_top,
					 view->clip_right - view->clip_left,
					 view->clip_bottom - view->clip_top);
		      cairo_xlib_surface_set_size (view->cr_surface,
						   view->clip_right - view->clip_left,
						   view->clip_bottom - view->clip_top);
		    }
		  xwidget_expose (view);
		}
            }
	}
      XFree (children);
    }
#endif

#ifdef USE_CAIRO_XCB_SURFACE
  /* Some of the following code depends on `normal_gc' being
     up-to-date on the X server, but doesn't call a routine that will
     flush it first.  So do this ourselves instead.  */
  XFlushGC (FRAME_X_DISPLAY (f),
	    f->output_data.x->normal_gc);
#endif

#ifdef USE_CAIRO
  if (FRAME_CR_CONTEXT (f))
    {
      cairo_surface_t *surface = cairo_get_target (FRAME_CR_CONTEXT (f));
      if (cairo_surface_get_type (surface) == CAIRO_SURFACE_TYPE_XLIB)
	{
	  eassert (cairo_xlib_surface_get_display (surface)
		   == FRAME_X_DISPLAY (f));
	  eassert (cairo_xlib_surface_get_drawable (surface)
		   == FRAME_X_RAW_DRAWABLE (f));
	  cairo_surface_flush (surface);
	  XCopyArea (FRAME_X_DISPLAY (f),
		     FRAME_X_DRAWABLE (f), FRAME_X_DRAWABLE (f),
		     f->output_data.x->normal_gc,
		     x, from_y,
		     width, height,
		     x, to_y);
	  cairo_surface_mark_dirty_rectangle (surface, x, to_y, width, height);
	}
#ifdef USE_CAIRO_XCB_SURFACE
      else if (cairo_surface_get_type (surface) == CAIRO_SURFACE_TYPE_XCB)
	{
	  cairo_surface_flush (surface);
	  xcb_copy_area (FRAME_DISPLAY_INFO (f)->xcb_connection,
			 (xcb_drawable_t) FRAME_X_DRAWABLE (f),
			 (xcb_drawable_t) FRAME_X_DRAWABLE (f),
			 (xcb_gcontext_t) XGContextFromGC (f->output_data.x->normal_gc),
			 x, from_y, x, to_y, width, height);
	  cairo_surface_mark_dirty_rectangle (surface, x, to_y, width, height);
	}
#endif
      else
	{
	  cairo_surface_t *s
	    = cairo_surface_create_similar (surface,
					    cairo_surface_get_content (surface),
					    width, height);
	  cairo_t *cr = cairo_create (s);
	  cairo_set_source_surface (cr, surface, -x, -from_y);
	  cairo_paint (cr);
	  cairo_destroy (cr);

	  cr = FRAME_CR_CONTEXT (f);
	  cairo_save (cr);
	  cairo_set_source_surface (cr, s, x, to_y);
	  cairo_set_operator (cr, CAIRO_OPERATOR_SOURCE);
	  cairo_rectangle (cr, x, to_y, width, height);
	  cairo_fill (cr);
	  cairo_restore (cr);
	  cairo_surface_destroy (s);
	}
    }
  else
#endif	/* USE_CAIRO */
    XCopyArea (FRAME_X_DISPLAY (f),
	       FRAME_X_DRAWABLE (f), FRAME_X_DRAWABLE (f),
	       f->output_data.x->normal_gc,
	       x, from_y,
	       width, height,
	       x, to_y);

  unblock_input ();
}


\f
/***********************************************************************
			   Exposure Events
 ***********************************************************************/

\f
static void
x_frame_highlight (struct frame *f)
{
  struct x_display_info *dpyinfo;

  dpyinfo = FRAME_DISPLAY_INFO (f);

  /* We used to only do this if Vx_no_window_manager was non-nil, but
     the ICCCM (section 4.1.6) says that the window's border pixmap
     and border pixel are window attributes which are "private to the
     client", so we can always change it to whatever we want.  */
  block_input ();
  /* I recently started to get errors in this XSetWindowBorder, depending on
     the window-manager in use, tho something more is at play since I've been
     using that same window-manager binary for ever.  Let's not crash just
     because of this (bug#9310).  */
  x_ignore_errors_for_next_request (dpyinfo, 0);
  XSetWindowBorder (FRAME_X_DISPLAY (f), FRAME_X_WINDOW (f),
		    f->output_data.x->border_pixel);
  x_stop_ignoring_errors (dpyinfo);
  unblock_input ();
  gui_update_cursor (f, true);

  if (!FRAME_X_OUTPUT (f)->alpha_identical_p)
    x_set_frame_alpha (f);
}

static void
x_frame_unhighlight (struct frame *f)
{
  struct x_display_info *dpyinfo;

  dpyinfo = FRAME_DISPLAY_INFO (f);

  /* We used to only do this if Vx_no_window_manager was non-nil, but
     the ICCCM (section 4.1.6) says that the window's border pixmap
     and border pixel are window attributes which are "private to the
     client", so we can always change it to whatever we want.  */

  block_input ();
  /* Same as above for XSetWindowBorder (bug#9310).  */
  x_ignore_errors_for_next_request (dpyinfo, 0);
  XSetWindowBorderPixmap (FRAME_X_DISPLAY (f), FRAME_X_WINDOW (f),
			  f->output_data.x->border_tile);
  x_stop_ignoring_errors (dpyinfo);
  unblock_input ();

  gui_update_cursor (f, true);

  /* Eschew modifying the frame alpha when the alpha values for
     focused and background frames are identical; otherwise, this will
     upset the order in which changes to the alpha property
     immediately subsequent to a focus change are propagated into a
     frame's alpha property.  (bug#66398) */

  if (!FRAME_X_OUTPUT (f)->alpha_identical_p)
    x_set_frame_alpha (f);
}

/* The focus has changed.  Update the frames as necessary to reflect
   the new situation.  Note that we can't change the selected frame
   here, because the Lisp code we are interrupting might become confused.
   Each event gets marked with the frame in which it occurred, so the
   Lisp code can tell when the switch took place by examining the events.  */

static void
x_new_focus_frame (struct x_display_info *dpyinfo, struct frame *frame)
{
  struct frame *old_focus = dpyinfo->x_focus_frame;
#if defined USE_GTK && !defined HAVE_GTK3 && defined HAVE_XINPUT2
  XIEventMask mask;
  ptrdiff_t l;

  if (dpyinfo->supports_xi2)
    {
      l = XIMaskLen (XI_LASTEVENT);
      mask.mask = alloca (l);
      mask.mask_len = l;
      memset (mask.mask, 0, l);

      mask.deviceid = XIAllDevices;
    }
#endif

  if (frame != dpyinfo->x_focus_frame)
    {
      /* Set this before calling other routines, so that they see
	 the correct value of x_focus_frame.  */
      dpyinfo->x_focus_frame = frame;

      /* Once none of our frames are focused anymore, stop selecting
	 for raw input events from the root window.  */

#if defined USE_GTK && !defined HAVE_GTK3 && defined HAVE_XINPUT2
      if (frame && dpyinfo->supports_xi2)
	XISetMask (mask.mask, XI_RawKeyPress);

      if (dpyinfo->supports_xi2)
	XISelectEvents (dpyinfo->display, dpyinfo->root_window, &mask, 1);
#endif

      if (old_focus && old_focus->auto_lower)
	x_lower_frame (old_focus);

      if (dpyinfo->x_focus_frame && dpyinfo->x_focus_frame->auto_raise)
	dpyinfo->x_pending_autoraise_frame = dpyinfo->x_focus_frame;
      else
	dpyinfo->x_pending_autoraise_frame = NULL;
    }

  x_frame_rehighlight (dpyinfo);
}

#if defined HAVE_XFIXES && XFIXES_VERSION >= 40000

/* True if the display in DPYINFO supports a version of Xfixes
   sufficient for pointer blanking.  */

static bool
x_fixes_pointer_blanking_supported (struct x_display_info *dpyinfo)
{
  return (dpyinfo->xfixes_supported_p
	  && dpyinfo->xfixes_major >= 4);
}

#endif /* HAVE_XFIXES && XFIXES_VERSION >= 40000 */

/* Toggle mouse pointer visibility on frame F using the XFixes
   extension.  */
#if defined HAVE_XFIXES && XFIXES_VERSION >= 40000

static void
xfixes_toggle_visible_pointer (struct frame *f, bool invisible)

{
  if (invisible)
    XFixesHideCursor (FRAME_X_DISPLAY (f), FRAME_X_WINDOW (f));
  else
    XFixesShowCursor (FRAME_X_DISPLAY (f), FRAME_X_WINDOW (f));
  f->pointer_invisible = invisible;
}

#endif /* HAVE_XFIXES */

/* Create invisible cursor on the X display referred by DPYINFO.  */
static Cursor
make_invisible_cursor (struct x_display_info *dpyinfo)
{
  Display *dpy = dpyinfo->display;
  static char const no_data[] = { 0 };
  Pixmap pix;
  XColor col;
  Cursor c;

  c = None;

  x_catch_errors (dpy);
  pix = XCreateBitmapFromData (dpy, dpyinfo->root_window, no_data, 1, 1);
  if (!x_had_errors_p (dpy) && pix != None)
    {
      Cursor pixc;
      col.pixel = 0;
      col.red = col.green = col.blue = 0;
      col.flags = DoRed | DoGreen | DoBlue;
      pixc = XCreatePixmapCursor (dpy, pix, pix, &col, &col, 0, 0);
      if (! x_had_errors_p (dpy) && pixc != None)
        c = pixc;
      XFreePixmap (dpy, pix);
    }

  x_uncatch_errors ();

  return c;
}

/* Toggle mouse pointer visibility on frame F by using an invisible
   cursor.  */
static void
x_toggle_visible_pointer (struct frame *f, bool invisible)
{
  struct x_display_info *dpyinfo;

  dpyinfo = FRAME_DISPLAY_INFO (f);

  /* We could have gotten a BadAlloc error while creating the
     invisible cursor.  Try to create it again, but if that fails,
     just give up.  */
  if (dpyinfo->invisible_cursor == None)
    dpyinfo->invisible_cursor = make_invisible_cursor (dpyinfo);

#if !defined HAVE_XFIXES || XFIXES_VERSION < 40000
  if (dpyinfo->invisible_cursor == None)
    invisible = false;
#else
  /* But if Xfixes is available, try using it instead.  */
  if (dpyinfo->invisible_cursor == None)
    {
      if (x_fixes_pointer_blanking_supported (dpyinfo))
	{
	  dpyinfo->fixes_pointer_blanking = true;
	  xfixes_toggle_visible_pointer (f, invisible);

	  return;
	}
      else
	invisible = false;
    }
#endif

  if (invisible)
    XDefineCursor (dpyinfo->display, FRAME_X_WINDOW (f),
		   dpyinfo->invisible_cursor);
  else
    XDefineCursor (dpyinfo->display, FRAME_X_WINDOW (f),
		   f->output_data.x->current_cursor);

  f->pointer_invisible = invisible;
}

static void
XTtoggle_invisible_pointer (struct frame *f, bool invisible)
{
  block_input ();
#if defined HAVE_XFIXES && XFIXES_VERSION >= 40000
  if (FRAME_DISPLAY_INFO (f)->fixes_pointer_blanking
      && x_fixes_pointer_blanking_supported (FRAME_DISPLAY_INFO (f)))
    xfixes_toggle_visible_pointer (f, invisible);
  else
#endif
    x_toggle_visible_pointer (f, invisible);
  unblock_input ();
}

/* Handle FocusIn and FocusOut state changes for FRAME.  If FRAME has
   focus and there exists more than one frame, puts a FOCUS_IN_EVENT
   into *BUFP.  Note that this code is not used to handle focus
   changes on builds that can use the X Input extension for handling
   input focus when it is available (currently the no toolkit and GTK
   3 toolkits).  */

static void
x_focus_changed (int type, int state, struct x_display_info *dpyinfo,
		 struct frame *frame, struct input_event *bufp)
{
  if (type == FocusIn)
    {
      if (dpyinfo->x_focus_event_frame != frame)
        {
          x_new_focus_frame (dpyinfo, frame);
          dpyinfo->x_focus_event_frame = frame;
          bufp->kind = FOCUS_IN_EVENT;
          XSETFRAME (bufp->frame_or_window, frame);
        }

      frame->output_data.x->focus_state |= state;

#ifdef HAVE_X_I18N
      if (FRAME_XIC (frame))
	XSetICFocus (FRAME_XIC (frame));
#ifdef USE_GTK
      GtkWidget *widget;

      if (x_gtk_use_native_input)
	{
	  gtk_im_context_focus_in (FRAME_X_OUTPUT (frame)->im_context);
	  widget = FRAME_GTK_OUTER_WIDGET (frame);
	  gtk_im_context_set_client_window (FRAME_X_OUTPUT (frame)->im_context,
					    gtk_widget_get_window (widget));
	}
#endif
#endif
    }
  else if (type == FocusOut)
    {
      frame->output_data.x->focus_state &= ~state;

      if (dpyinfo->x_focus_event_frame == frame)
        {
          dpyinfo->x_focus_event_frame = 0;
          x_new_focus_frame (dpyinfo, 0);

          bufp->kind = FOCUS_OUT_EVENT;
          XSETFRAME (bufp->frame_or_window, frame);
        }

      if (!frame->output_data.x->focus_state)
	{
#ifdef HAVE_X_I18N
	  if (FRAME_XIC (frame))
	    XUnsetICFocus (FRAME_XIC (frame));
#ifdef USE_GTK
	  if (x_gtk_use_native_input)
	    {
	      gtk_im_context_focus_out (FRAME_X_OUTPUT (frame)->im_context);
	      gtk_im_context_set_client_window (FRAME_X_OUTPUT (frame)->im_context, NULL);
	    }
#endif
#endif
	}

      if (frame->pointer_invisible)
        XTtoggle_invisible_pointer (frame, false);
    }
}

/* Return the Emacs frame-object corresponding to an X window.  It
   could be the frame's main window, an icon window, or an xwidget
   window.  */

static struct frame *
x_window_to_frame (struct x_display_info *dpyinfo, int wdesc)
{
  Lisp_Object tail, frame;
  struct frame *f;

  if (wdesc == None)
    return NULL;

#ifdef HAVE_XWIDGETS
  struct xwidget_view *xvw = xwidget_view_from_window (wdesc);

  if (xvw && xvw->frame)
    return xvw->frame;
#endif

  FOR_EACH_FRAME (tail, frame)
    {
      f = XFRAME (frame);
      if (!FRAME_X_P (f) || FRAME_DISPLAY_INFO (f) != dpyinfo)
	continue;
      if (f->output_data.x->hourglass_window == wdesc)
	return f;
#ifdef USE_X_TOOLKIT
      if ((f->output_data.x->edit_widget
	   && XtWindow (f->output_data.x->edit_widget) == wdesc)
	  /* A tooltip frame?  */
	  || (!f->output_data.x->edit_widget
	      && FRAME_X_WINDOW (f) == wdesc)
          || f->output_data.x->icon_desc == wdesc)
        return f;
#else /* not USE_X_TOOLKIT */
#ifdef USE_GTK
      if (f->output_data.x->edit_widget)
      {
        GtkWidget *gwdesc = xg_win_to_widget (dpyinfo->display, wdesc);
        struct x_output *x = f->output_data.x;
        if (gwdesc != 0 && gwdesc == x->edit_widget)
          return f;
      }
#endif /* USE_GTK */
      if (FRAME_X_WINDOW (f) == wdesc
          || f->output_data.x->icon_desc == wdesc)
        return f;
#endif /* not USE_X_TOOLKIT */
    }
  return 0;
}

/* Like x_any_window_to_frame but only try to find tooltip frames.

   If wdesc is a toolkit tooltip without an associated frame, set
   UNRELATED_TOOLTIP_P to true.  Otherwise, set it to false.  */
static struct frame *
x_tooltip_window_to_frame (struct x_display_info *dpyinfo,
			   Window wdesc, bool *unrelated_tooltip_p)
{
  Lisp_Object tail, frame;
  struct frame *f;
#ifdef USE_GTK
  GtkWidget *widget;
  GdkWindow *tooltip_window;
#endif

  if (unrelated_tooltip_p)
    *unrelated_tooltip_p = false;

  FOR_EACH_FRAME (tail, frame)
    {
      f = XFRAME (frame);

      if (FRAME_X_P (f) && FRAME_TOOLTIP_P (f)
	  && FRAME_DISPLAY_INFO (f) == dpyinfo
	  && FRAME_X_WINDOW (f) == wdesc)
	return f;

#ifdef USE_GTK
      if (!FRAME_X_P (f))
	continue;

      if (FRAME_X_OUTPUT (f)->ttip_window)
	widget = GTK_WIDGET (FRAME_X_OUTPUT (f)->ttip_window);
      else
	widget = NULL;

      if (widget)
	tooltip_window = gtk_widget_get_window (widget);
      else
	tooltip_window = NULL;

#ifdef HAVE_GTK3
      if (tooltip_window
	  && (gdk_x11_window_get_xid (tooltip_window) == wdesc))
	{
	  if (unrelated_tooltip_p)
	    *unrelated_tooltip_p = true;
	  break;
	}
#else
      if (tooltip_window
	  && (GDK_WINDOW_XID (tooltip_window) == wdesc))
	{
	  if (unrelated_tooltip_p)
	    *unrelated_tooltip_p = true;
	  break;
	}
#endif
#endif
    }

  return NULL;
}

#if defined (USE_X_TOOLKIT) || defined (USE_GTK)

/* Like x_window_to_frame but also compares the window with the widget's
   windows.  */

static struct frame *
x_any_window_to_frame (struct x_display_info *dpyinfo, int wdesc)
{
  Lisp_Object tail, frame;
  struct frame *f, *found = NULL;
  struct x_output *x;

  if (wdesc == None)
    return NULL;

#ifdef HAVE_XWIDGETS
  struct xwidget_view *xv = xwidget_view_from_window (wdesc);

  if (xv)
    return xv->frame;
#endif

  FOR_EACH_FRAME (tail, frame)
    {
      if (found)
        break;
      f = XFRAME (frame);
      if (FRAME_X_P (f) && FRAME_DISPLAY_INFO (f) == dpyinfo)
	{
	  /* This frame matches if the window is any of its widgets.  */
	  x = f->output_data.x;
	  if (x->hourglass_window == wdesc)
	    found = f;
	  else if (x->widget)
	    {
#ifdef USE_GTK
              GtkWidget *gwdesc = xg_win_to_widget (dpyinfo->display, wdesc);
              if (gwdesc != 0
                  && gtk_widget_get_toplevel (gwdesc) == x->widget)
                found = f;
#else
	      if (wdesc == XtWindow (x->widget)
		  || wdesc == XtWindow (x->column_widget)
		  || wdesc == XtWindow (x->edit_widget))
		found = f;
	      /* Match if the window is this frame's menubar.  */
	      else if (lw_window_is_in_menubar (wdesc, x->menubar_widget))
		found = f;
#endif
	    }
	  else if (FRAME_X_WINDOW (f) == wdesc)
	    /* A tooltip frame.  */
	    found = f;
	}
    }

  return found;
}

/* Likewise, but consider only the menu bar widget.  */

static struct frame *
x_menubar_window_to_frame (struct x_display_info *dpyinfo,
			   const XEvent *event)
{
  Window wdesc;
#ifdef HAVE_XINPUT2
  if (event->type == GenericEvent
      && dpyinfo->supports_xi2
      && (event->xcookie.evtype == XI_ButtonPress
	  || event->xcookie.evtype == XI_ButtonRelease))
    wdesc = ((XIDeviceEvent *) event->xcookie.data)->event;
  else
#endif
    wdesc = event->xany.window;
  Lisp_Object tail, frame;
  struct frame *f;
  struct x_output *x;

  if (wdesc == None)
    return NULL;

  FOR_EACH_FRAME (tail, frame)
    {
      f = XFRAME (frame);
      if (!FRAME_X_P (f) || FRAME_DISPLAY_INFO (f) != dpyinfo)
	continue;
      x = f->output_data.x;
#ifdef USE_GTK
      if (x->menubar_widget && xg_event_is_for_menubar (f, event))
        return f;
#else
      /* Match if the window is this frame's menubar.  */
      if (x->menubar_widget
	  && lw_window_is_in_menubar (wdesc, x->menubar_widget))
	return f;
#endif
    }
  return 0;
}

/* Return the frame whose principal (outermost) window is WDESC.
   If WDESC is some other (smaller) window, we return 0.  */

struct frame *
x_top_window_to_frame (struct x_display_info *dpyinfo, int wdesc)
{
  Lisp_Object tail, frame;
  struct frame *f;
  struct x_output *x;

  if (wdesc == None)
    return NULL;

  FOR_EACH_FRAME (tail, frame)
    {
      f = XFRAME (frame);
      if (!FRAME_X_P (f) || FRAME_DISPLAY_INFO (f) != dpyinfo)
	continue;
      x = f->output_data.x;

      if (x->widget)
	{
	  /* This frame matches if the window is its topmost widget.  */
#ifdef USE_GTK
          GtkWidget *gwdesc = xg_win_to_widget (dpyinfo->display, wdesc);
          if (gwdesc == x->widget)
            return f;
#else
	  if (wdesc == XtWindow (x->widget))
	    return f;
#endif
	}
      else if (FRAME_X_WINDOW (f) == wdesc)
	/* Tooltip frame.  */
	return f;
    }
  return 0;
}

#else /* !USE_X_TOOLKIT && !USE_GTK */

#define x_any_window_to_frame(d, i) x_window_to_frame (d, i)

struct frame *
x_top_window_to_frame (struct x_display_info *dpyinfo, int wdesc)
{
  return x_window_to_frame (dpyinfo, wdesc);
}

static void
x_next_event_from_any_display (XEvent *event)
{
  struct x_display_info *dpyinfo;
  fd_set fds, rfds;
  int fd, maxfd, rc;

  rc = -1;
  FD_ZERO (&rfds);

  while (true)
    {
      FD_ZERO (&fds);
      maxfd = -1;

      for (dpyinfo = x_display_list; dpyinfo;
	   dpyinfo = dpyinfo->next)
	{
	  fd = ConnectionNumber (dpyinfo->display);

	  if ((rc < 0 || FD_ISSET (fd, &rfds))
	      && XPending (dpyinfo->display))
	    {
	      XNextEvent (dpyinfo->display, event);
	      return;
	    }

	  if (fd > maxfd)
	    maxfd = fd;

	  eassert (fd < FD_SETSIZE);
	  FD_SET (fd, &fds);
	}

      eassert (maxfd >= 0);

      /* Continue to read input even if pselect fails, because if an
	 error occurs XPending will call the IO error handler, which
	 then brings us out of this loop.  */
      rc = pselect (maxfd + 1, &fds, NULL, NULL, NULL, NULL);

      if (rc >= 0)
	rfds = fds;
    }
}

#endif /* USE_X_TOOLKIT || USE_GTK */

static void
x_handle_pending_selection_requests_1 (struct x_selection_request_event *tem)
{
  specpdl_ref count;
  struct selection_input_event se;

  count = SPECPDL_INDEX ();
  se = tem->se;

  record_unwind_protect_ptr (xfree, tem);
  x_handle_selection_event (&se);
  unbind_to (count, Qnil);
}

/* Handle all pending selection request events from modal event
   loops.  */
void
x_handle_pending_selection_requests (void)
{
  struct x_selection_request_event *tem;

  while (pending_selection_requests)
    {
      tem = pending_selection_requests;
      pending_selection_requests = tem->next;

      x_handle_pending_selection_requests_1 (tem);
    }
}

static void
x_push_selection_request (struct selection_input_event *se)
{
  struct x_selection_request_event *tem;

  tem = xmalloc (sizeof *tem);
  tem->next = pending_selection_requests;
  tem->se = *se;
  pending_selection_requests = tem;
}

bool
x_detect_pending_selection_requests (void)
{
  return !!pending_selection_requests;
}

static void
x_clear_dnd_action (void)
{
  x_dnd_action_symbol = Qnil;
}

/* Delete action descriptions from F after drag-and-drop.  */
static void
x_dnd_delete_action_list (Lisp_Object frame)
{
  struct frame *f;

  /* Delete those two properties, since some clients look at them and
     not the action to decide whether or not the user should be
     prompted to select an action.  This can be called with FRAME no
     longer alive (or its display dead).  */

  f = XFRAME (frame);

  if (!FRAME_LIVE_P (f) || !FRAME_DISPLAY_INFO (f)->display)
    return;

  block_input ();
  XDeleteProperty (FRAME_X_DISPLAY (f), FRAME_X_WINDOW (f),
		   FRAME_DISPLAY_INFO (f)->Xatom_XdndActionList);
  XDeleteProperty (FRAME_X_DISPLAY (f), FRAME_X_WINDOW (f),
		   FRAME_DISPLAY_INFO (f)->Xatom_XdndActionDescription);
  unblock_input ();
}

static void
x_dnd_lose_ownership (Lisp_Object timestamp_and_frame)
{
  struct frame *f;

  f = XFRAME (XCDR (timestamp_and_frame));

  if (FRAME_LIVE_P (f))
    Fx_disown_selection_internal (QXdndSelection,
				  XCAR (timestamp_and_frame),
				  XCDR (timestamp_and_frame));
}

/* Clean up an existing drag-and-drop operation in preparation for its
   sudden termination.  */

static void
x_dnd_process_quit (struct frame *f, Time timestamp)
{
  xm_drop_start_message dmsg;

  if (x_dnd_in_progress)
    {
      if (x_dnd_last_seen_window != None
	  && x_dnd_last_protocol_version != -1)
	x_dnd_send_leave (f, x_dnd_last_seen_window,
			  x_dnd_last_seen_toplevel);
      else if (x_dnd_last_seen_window != None
	       && !XM_DRAG_STYLE_IS_DROP_ONLY (x_dnd_last_motif_style)
	       && x_dnd_last_motif_style != XM_DRAG_STYLE_NONE
	       && x_dnd_motif_setup_p)
	{
	  dmsg.reason = XM_DRAG_REASON (XM_DRAG_ORIGINATOR_INITIATOR,
					XM_DRAG_REASON_DROP_START);
	  dmsg.byte_order = XM_BYTE_ORDER_CUR_FIRST;
	  dmsg.timestamp = timestamp;
	  dmsg.side_effects
	    = XM_DRAG_SIDE_EFFECT (xm_side_effect_from_action (FRAME_DISPLAY_INFO (f),
							       x_dnd_wanted_action),
				   XM_DROP_SITE_VALID, x_dnd_motif_operations,
				   XM_DROP_ACTION_DROP_CANCEL);
	  dmsg.x = 0;
	  dmsg.y = 0;
	  dmsg.index_atom = x_dnd_motif_atom;
	  dmsg.source_window = FRAME_X_WINDOW (f);

	  x_dnd_send_xm_leave_for_drop (FRAME_DISPLAY_INFO (f), f,
					x_dnd_last_seen_window,
					timestamp);
	  xm_send_drop_message (FRAME_DISPLAY_INFO (f), FRAME_X_WINDOW (f),
				x_dnd_last_seen_window, &dmsg);
	}

      x_dnd_end_window = x_dnd_last_seen_window;
      x_dnd_last_seen_window = None;
      x_dnd_last_seen_toplevel = None;
      x_dnd_in_progress = false;
      x_dnd_frame = NULL;
    }

  x_dnd_waiting_for_finish = false;
  x_dnd_return_frame_object = NULL;
  x_dnd_movement_frame = NULL;
  x_dnd_wheel_frame = NULL;
}

/* This function is defined far away from the rest of the XDND code so
   it can utilize `x_any_window_to_frame'.  */

/* Implementers beware!  On most other platforms (where drag-and-drop
   data is not provided via selections, but some kind of serialization
   mechanism), it is usually much easier to implement a suitable
   primitive instead of copying the C code here, and then to build
   `x-begin-drag' on top of that, by making it a wrapper function in
   Lisp that converts the list of targets and value of `XdndSelection'
   to serialized data.  Also be sure to update the data types used in
   dnd.el.

   For examples of how to do this, see `haiku-drag-message' and
   `x-begin-drag' in haikuselect.c and lisp/term/haiku-win.el, and
   `ns-begin-drag' and `x-begin-drag' in nsselect.m and
   lisp/term/ns-win.el.  */

Lisp_Object
x_dnd_begin_drag_and_drop (struct frame *f, Time time, Atom xaction,
			   Lisp_Object return_frame, Atom *ask_action_list,
			   const char **ask_action_names, size_t n_ask_actions,
			   bool allow_current_frame, Atom *target_atoms,
			   int ntargets, Lisp_Object selection_target_list,
			   bool follow_tooltip)
{
#ifndef USE_GTK
  XEvent next_event;
  int finish;
#endif
  XWindowAttributes root_window_attrs;
  struct input_event hold_quit;
  char *atom_name, *ask_actions;
  Lisp_Object action, ltimestamp, val;
  specpdl_ref ref, count, base;
  ptrdiff_t i, end, fill;
  XTextProperty prop;
  Lisp_Object frame_object, x, y, frame, local_value;
  bool signals_were_pending, need_sync;
#ifdef HAVE_XKB
  XkbStateRec keyboard_state;
#endif
#ifndef USE_GTK
  struct x_display_info *event_display;
#endif
  unsigned int additional_mask;
#ifdef HAVE_XINPUT2
  struct xi_device_t *device;
#endif

  if (FRAME_DISPLAY_INFO (f)->untrusted)
    /* Untrusted clients cannot send messages to trusted clients or
       read the window tree, so drag and drop will likely not work at
       all.  */
    error ("Drag-and-drop is not possible when the client is"
	   " not trusted by the X server.");

  base = SPECPDL_INDEX ();

  /* Bind this here to avoid juggling bindings and SAFE_FREE in
     Fx_begin_drag.  */
  specbind (Qx_dnd_targets_list, selection_target_list);

  if (!FRAME_VISIBLE_P (f))
    error ("Frame must be visible");

  XSETFRAME (frame, f);
  local_value = assq_no_quit (QXdndSelection,
			      FRAME_TERMINAL (f)->Vselection_alist);

  if (x_dnd_in_progress || x_dnd_waiting_for_finish)
    error ("A drag-and-drop session is already in progress");

  DEFER_SELECTIONS;

  /* If local_value is nil, then we lost ownership of XdndSelection.
     Signal a more informative error than args-out-of-range.  */
  if (NILP (local_value))
    error ("No local value for XdndSelection");

  if (popup_activated ())
    error ("Trying to drag-and-drop from within a menu-entry");

  x_set_dnd_targets (target_atoms, ntargets);
  record_unwind_protect_void (x_free_dnd_targets);
  record_unwind_protect_void (x_clear_dnd_action);

  ltimestamp = x_timestamp_for_selection (FRAME_DISPLAY_INFO (f),
					  QXdndSelection);

  if (NILP (ltimestamp))
    error ("No local value for XdndSelection");

  if (BIGNUMP (ltimestamp))
    x_dnd_selection_timestamp = bignum_to_intmax (ltimestamp);
  else
    x_dnd_selection_timestamp = XFIXNUM (ltimestamp);

  /* Release ownership of XdndSelection after this function returns.
     VirtualBox uses the owner of XdndSelection to determine whether
     or not mouse motion is part of a drag-and-drop operation.  */

  if (!x_dnd_preserve_selection_data)
    record_unwind_protect (x_dnd_lose_ownership,
			   Fcons (ltimestamp, frame));

  x_dnd_motif_operations
    = xm_side_effect_from_action (FRAME_DISPLAY_INFO (f), xaction);

  x_dnd_first_motif_operation = XM_DRAG_NOOP;

  if (n_ask_actions)
    {
      x_dnd_motif_operations
	= xm_operations_from_actions (FRAME_DISPLAY_INFO (f),
				      ask_action_list,
				      n_ask_actions);
      x_dnd_first_motif_operation
	= xm_side_effect_from_action (FRAME_DISPLAY_INFO (f),
				      ask_action_list[0]);

      record_unwind_protect (x_dnd_delete_action_list, frame);

      ask_actions = NULL;
      end = 0;
      count = SPECPDL_INDEX ();

      for (i = 0; i < n_ask_actions; ++i)
	{
	  fill = end;
	  end += strlen (ask_action_names[i]) + 1;

	  if (ask_actions)
	    ask_actions = xrealloc (ask_actions, end);
	  else
	    ask_actions = xmalloc (end);

	  strncpy (ask_actions + fill,
		   ask_action_names[i],
		   end - fill);
	}

      prop.value = (unsigned char *) ask_actions;
      prop.encoding = XA_STRING;
      prop.format = 8;
      prop.nitems = end;

      record_unwind_protect_ptr (xfree, ask_actions);

      /* This can potentially store a lot of data in window
	 properties, so check for allocation errors.  */
      block_input ();
      x_catch_errors (FRAME_X_DISPLAY (f));
      XSetTextProperty (FRAME_X_DISPLAY (f), FRAME_X_WINDOW (f),
			&prop, FRAME_DISPLAY_INFO (f)->Xatom_XdndActionDescription);

      XChangeProperty (FRAME_X_DISPLAY (f), FRAME_X_WINDOW (f),
		       FRAME_DISPLAY_INFO (f)->Xatom_XdndActionList, XA_ATOM, 32,
		       PropModeReplace, (unsigned char *) ask_action_list,
		       n_ask_actions);
      x_check_errors (FRAME_X_DISPLAY (f),
		      "Can't set action descriptions: %s");
      x_uncatch_errors_after_check ();
      unblock_input ();

      unbind_to (count, Qnil);
    }

  record_unwind_protect_void (x_clear_dnd_variables);

  if (follow_tooltip)
    {
#if defined HAVE_XRANDR || defined USE_GTK
      x_dnd_monitors
	= FRAME_DISPLAY_INFO (f)->last_monitor_attributes_list;

      if (NILP (x_dnd_monitors))
#endif
	x_dnd_monitors
	  = Fx_display_monitor_attributes_list (frame);
    }

  x_dnd_update_tooltip = follow_tooltip;

  /* This shouldn't happen.  */
  if (x_dnd_toplevels)
    x_dnd_free_toplevels (true);

#ifdef USE_GTK
  /* Prevent GTK+ timeouts from being run, since they can call
     handle_one_xevent behind our back.  */
  suppress_xg_select ();
  record_unwind_protect_void (release_xg_select);
#endif

  /* Set up a meaningless alias.  */
  XSETCAR (x_dnd_selection_alias_cell, QSECONDARY);
  XSETCDR (x_dnd_selection_alias_cell, QSECONDARY);

  /* Bind this here.  The cell doesn't actually alias between
     anything until `xm_setup_dnd_targets' is called.  */
  specbind (Qx_selection_alias_alist,
	    Fcons (x_dnd_selection_alias_cell,
		   Vx_selection_alias_alist));

  /* Initialize most of the state for the drag-and-drop operation.  */
  x_dnd_in_progress = true;
  x_dnd_recursion_depth = command_loop_level + minibuf_level;
  x_dnd_frame = f;
  x_dnd_last_seen_window = None;
  x_dnd_last_seen_toplevel = None;
  x_dnd_last_protocol_version = -1;
  x_dnd_last_window_is_frame = false;
  x_dnd_last_motif_style = XM_DRAG_STYLE_NONE;
  x_dnd_mouse_rect_target = None;
  x_dnd_action = None;
  x_dnd_action_symbol = Qnil;
  x_dnd_wanted_action = xaction;
  x_dnd_return_frame = 0;
  x_dnd_waiting_for_finish = false;
  x_dnd_waiting_for_motif_finish = 0;
  x_dnd_waiting_for_status_window = None;
  x_dnd_pending_send_position.type = 0;
  x_dnd_xm_use_help = false;
  x_dnd_motif_setup_p = false;
  x_dnd_end_window = None;
  x_dnd_run_unsupported_drop_function = false;
  x_dnd_use_toplevels
    = x_wm_supports (f, FRAME_DISPLAY_INFO (f)->Xatom_net_client_list_stacking);
  x_dnd_last_tooltip_valid = false;
  x_dnd_toplevels = NULL;
  x_dnd_allow_current_frame = allow_current_frame;
  x_dnd_movement_frame = NULL;
  x_dnd_wheel_frame = NULL;
  x_dnd_init_type_lists = false;
  x_dnd_need_send_drop = false;

#ifdef HAVE_XINPUT2

  if (FRAME_DISPLAY_INFO (f)->supports_xi2)
    {
      /* Only accept input from the last master pointer to have interacted
	 with Emacs.  This prevents another pointer device getting our
	 idea of the button state messed up.  */
      if (FRAME_DISPLAY_INFO (f)->client_pointer_device != -1)
	x_dnd_pointer_device
	  = FRAME_DISPLAY_INFO (f)->client_pointer_device;
      else
	/* This returns Bool but cannot actually fail.  */
	XIGetClientPointer (FRAME_X_DISPLAY (f), None,
			    &x_dnd_pointer_device);

      x_dnd_keyboard_device = -1;

      device = xi_device_from_id (FRAME_DISPLAY_INFO (f),
				  x_dnd_pointer_device);

      if (device)
	x_dnd_keyboard_device = device->attachment;
    }
  else
    {
      x_dnd_pointer_device = -1;
      x_dnd_keyboard_device = -1;
    }

#endif

#ifdef HAVE_XKB
  x_dnd_keyboard_state = 0;

  if (FRAME_DISPLAY_INFO (f)->supports_xkb)
    {
      XkbSelectEvents (FRAME_X_DISPLAY (f), XkbUseCoreKbd,
		       XkbStateNotifyMask, XkbStateNotifyMask);
      XkbGetState (FRAME_X_DISPLAY (f), XkbUseCoreKbd,
		   &keyboard_state);

      x_dnd_keyboard_state = (keyboard_state.mods
			      | keyboard_state.ptr_buttons);
    }
#endif

  if (x_dnd_use_toplevels)
    {
      if (x_dnd_compute_toplevels (FRAME_DISPLAY_INFO (f)))
	{
	  x_dnd_free_toplevels (true);
	  x_dnd_use_toplevels = false;
	}
      else
	record_unwind_protect_void (x_free_dnd_toplevels);
    }

  if (!NILP (return_frame))
    x_dnd_return_frame = 1;

  if (EQ (return_frame, Qnow))
    x_dnd_return_frame = 2;

  /* Now select for SubstructureNotifyMask and PropertyChangeMask on
     the root window, so we can get notified when window stacking
     changes, a common operation during drag-and-drop.  */

  XGetWindowAttributes (FRAME_X_DISPLAY (f),
			FRAME_DISPLAY_INFO (f)->root_window,
			&root_window_attrs);

  additional_mask = SubstructureNotifyMask;

  if (x_dnd_use_toplevels)
    additional_mask |= PropertyChangeMask;

  XSelectInput (FRAME_X_DISPLAY (f),
		FRAME_DISPLAY_INFO (f)->root_window,
		root_window_attrs.your_event_mask
		| additional_mask);

  if (EQ (return_frame, Qnow))
    x_dnd_update_state (FRAME_DISPLAY_INFO (f), CurrentTime);

  while (x_dnd_in_progress || x_dnd_waiting_for_finish)
    {
      EVENT_INIT (hold_quit);

#ifdef USE_GTK
      current_finish = X_EVENT_NORMAL;
      current_hold_quit = &hold_quit;
      current_count = 0;
      xg_pending_quit_event.kind = NO_EVENT;
#endif

      block_input ();
      x_dnd_inside_handle_one_xevent = true;
#ifdef USE_GTK
      gtk_main_iteration ();
#elif defined USE_X_TOOLKIT
      XtAppNextEvent (Xt_app_con, &next_event);
#else
      x_next_event_from_any_display (&next_event);
#endif

#ifndef USE_GTK
      event_display
	= x_display_info_for_display (next_event.xany.display);

      if (event_display)
	{
#ifdef HAVE_X_I18N
#ifdef HAVE_XINPUT2
	  if (next_event.type != GenericEvent
	      || !event_display->supports_xi2
	      || (next_event.xgeneric.extension
		  != event_display->xi2_opcode))
	    {
#endif
	      if (!x_filter_event (event_display, &next_event))
		handle_one_xevent (event_display,
				   &next_event, &finish, &hold_quit);
#ifdef HAVE_XINPUT2
	    }
	  else
	    handle_one_xevent (event_display,
			       &next_event, &finish, &hold_quit);
#endif
#else
	  handle_one_xevent (event_display,
			     &next_event, &finish, &hold_quit);
#endif
	}
#else
      /* Clear these before the read_socket_hook can be called.  */
      current_count = -1;
      current_hold_quit = NULL;
#endif
      x_dnd_inside_handle_one_xevent = false;

      /* Clean up any event handlers that are now out of date.  */
      x_clean_failable_requests (FRAME_DISPLAY_INFO (f));

      /* The unblock_input below might try to read input, but
	 XTread_socket does nothing inside a drag-and-drop event
	 loop, so don't let it clear the pending_signals flag.  */
      signals_were_pending = pending_signals;
      unblock_input ();
      pending_signals = signals_were_pending;

      /* Ignore mouse movement from displays that aren't the DND
	 display.  */
#ifndef USE_GTK
      if (event_display == FRAME_DISPLAY_INFO (f))
	{
#endif
	  if (x_dnd_movement_frame
	      /* FIXME: how come this can end up with movement frames
		 from other displays on GTK builds?  */
	      && (FRAME_X_DISPLAY (x_dnd_movement_frame)
		  == FRAME_X_DISPLAY (f))
	      /* If both those variables are false, then F is no
		 longer protected from deletion by Lisp code.  This
		 can only happen during the final iteration of the DND
		 event loop.  */
	      && (x_dnd_in_progress || x_dnd_waiting_for_finish))
	    {
	      XSETFRAME (frame_object, x_dnd_movement_frame);
	      XSETINT (x, x_dnd_movement_x);
	      XSETINT (y, x_dnd_movement_y);
	      x_dnd_movement_frame = NULL;

	      if (!NILP (Vx_dnd_movement_function)
		  && FRAME_LIVE_P (XFRAME (frame_object))
		  && !FRAME_TOOLTIP_P (XFRAME (frame_object))
		  && x_dnd_movement_x >= 0
		  && x_dnd_movement_y >= 0
		  && x_dnd_frame
		  && (XFRAME (frame_object) != x_dnd_frame
		      || x_dnd_allow_current_frame))
		{
		  x_dnd_old_window_attrs = root_window_attrs;
		  x_dnd_unwind_flag = true;

		  ref = SPECPDL_INDEX ();
		  record_unwind_protect_ptr (x_dnd_cleanup_drag_and_drop, f);
		  call2 (Vx_dnd_movement_function, frame_object,
			 Fposn_at_x_y (x, y, frame_object, Qnil));
		  x_dnd_unwind_flag = false;
		  unbind_to (ref, Qnil);

		  /* Redisplay this way to preserve the echo area.
		     Otherwise, the contents will abruptly disappear
		     when the mouse moves over a frame.  */
		  redisplay_preserve_echo_area (33);
		}
	    }

	  if (x_dnd_wheel_frame
	      && (x_dnd_in_progress || x_dnd_waiting_for_finish))
	    {
	      XSETFRAME (frame_object, x_dnd_wheel_frame);
	      XSETINT (x, x_dnd_wheel_x);
	      XSETINT (y, x_dnd_wheel_y);
	      x_dnd_wheel_frame = NULL;

	      if (!NILP (Vx_dnd_wheel_function)
		  && FRAME_LIVE_P (XFRAME (frame_object))
		  && !FRAME_TOOLTIP_P (XFRAME (frame_object))
		  && x_dnd_movement_x >= 0
		  && x_dnd_movement_y >= 0
		  && x_dnd_frame
		  && (XFRAME (frame_object) != x_dnd_frame
		      || x_dnd_allow_current_frame))
		{
		  x_dnd_old_window_attrs = root_window_attrs;
		  x_dnd_unwind_flag = true;

		  ref = SPECPDL_INDEX ();
		  record_unwind_protect_ptr (x_dnd_cleanup_drag_and_drop, f);
		  call4 (Vx_dnd_wheel_function,
			 Fposn_at_x_y (x, y, frame_object, Qnil),
			 make_fixnum (x_dnd_wheel_button),
			 make_uint (x_dnd_wheel_state),
			 make_uint (x_dnd_wheel_time));
		  x_dnd_unwind_flag = false;
		  unbind_to (ref, Qnil);

		  /* Redisplay this way to preserve the echo area.
		     Otherwise, the contents will abruptly disappear
		     when the mouse moves over a frame.  */
		  redisplay_preserve_echo_area (33);
		}
	    }

	  if (hold_quit.kind != NO_EVENT)
	    {
	      x_dnd_process_quit (f, hold_quit.timestamp);
#ifdef USE_GTK
	      current_hold_quit = NULL;
#endif
	      /* Restore the old event mask.  */
	      x_restore_events_after_dnd (f, &root_window_attrs);

	      /* Call kbd_buffer_store event, which calls
		 handle_interrupt and sets `last-event-frame' along
		 with various other things.  */
	      kbd_buffer_store_event (&hold_quit);
	      /* Now quit anyway.  */
	      quit ();
	    }

	  if (pending_selection_requests
	      && (x_dnd_in_progress || x_dnd_waiting_for_finish))
	    {
	      x_dnd_old_window_attrs = root_window_attrs;
	      x_dnd_unwind_flag = true;

	      ref = SPECPDL_INDEX ();
	      record_unwind_protect_ptr (x_dnd_cleanup_drag_and_drop, f);
	      x_handle_pending_selection_requests ();
	      x_dnd_unwind_flag = false;
	      unbind_to (ref, Qnil);
	    }

	  /* Sometimes C-g can be pressed inside a selection
	     converter, where quitting is inhibited.  We want
	     to quit after the converter exits.  */
	  if (!NILP (Vquit_flag) && !NILP (Vinhibit_quit))
	    {
	      x_dnd_process_quit (f, FRAME_DISPLAY_INFO (f)->last_user_time);
#ifdef USE_GTK
	      current_hold_quit = NULL;
#endif
	      x_restore_events_after_dnd (f, &root_window_attrs);
	      quit ();
	    }

	  if (x_dnd_run_unsupported_drop_function
	      && x_dnd_waiting_for_finish)
	    {
	      x_dnd_run_unsupported_drop_function = false;
	      x_dnd_waiting_for_finish = false;
	      x_dnd_unwind_flag = true;

	      ref = SPECPDL_INDEX ();
	      record_unwind_protect_ptr (x_dnd_cleanup_drag_and_drop, f);

	      if (!NILP (Vx_dnd_unsupported_drop_function))
		val = call8 (Vx_dnd_unsupported_drop_function,
			     XCAR (XCDR (x_dnd_unsupported_drop_data)),
			     Fnth (make_fixnum (3), x_dnd_unsupported_drop_data),
			     Fnth (make_fixnum (4), x_dnd_unsupported_drop_data),
			     Fnth (make_fixnum (2), x_dnd_unsupported_drop_data),
			     make_uint (x_dnd_unsupported_drop_window),
			     frame, make_uint (x_dnd_unsupported_drop_time),
			     Fcopy_sequence (XCAR (x_dnd_unsupported_drop_data)));
	      else
		val = Qnil;

	      if (NILP (val))
		x_dnd_do_unsupported_drop (FRAME_DISPLAY_INFO (f),
					   frame, XCAR (x_dnd_unsupported_drop_data),
					   XCAR (XCDR (x_dnd_unsupported_drop_data)),
					   x_dnd_unsupported_drop_window,
					   XFIXNUM (Fnth (make_fixnum (3),
							  x_dnd_unsupported_drop_data)),
					   XFIXNUM (Fnth (make_fixnum (4),
							  x_dnd_unsupported_drop_data)),
					   x_dnd_unsupported_drop_time);
	      else if (SYMBOLP (val))
		x_dnd_action_symbol = val;

	      x_dnd_unwind_flag = false;
	      unbind_to (ref, Qnil);

	      /* Break out of the loop now, since DND has
		 completed.  */
	      break;
	    }

#ifdef USE_GTK
	  if (xg_pending_quit_event.kind != NO_EVENT)
	    {
	      xg_pending_quit_event.kind = NO_EVENT;
	      current_hold_quit = NULL;

	      x_dnd_process_quit (f, FRAME_DISPLAY_INFO (f)->last_user_time);
	      x_restore_events_after_dnd (f, &root_window_attrs);
	      quit ();
	    }
#else
	}
      else
	{
	  if (x_dnd_movement_frame)
	    x_dnd_movement_frame = NULL;

	  if (x_dnd_wheel_frame)
	    x_dnd_wheel_frame = NULL;

	  if (hold_quit.kind != NO_EVENT)
	    EVENT_INIT (hold_quit);
	}
#endif
    }

  x_dnd_waiting_for_finish = false;

#ifdef USE_GTK
  current_hold_quit = NULL;
#endif
  x_dnd_movement_frame = NULL;
  x_dnd_wheel_frame = NULL;
  x_restore_events_after_dnd (f, &root_window_attrs);

  if (x_dnd_return_frame == 3
      && FRAME_LIVE_P (x_dnd_return_frame_object))
    {
      /* Deliberately preserve the last device if
	 x_dnd_return_frame_object is the drag source.  */

      if (x_dnd_return_frame_object != x_dnd_frame)
	x_dnd_return_frame_object->last_mouse_device = Qnil;

      x_dnd_return_frame_object->mouse_moved = true;

      XSETFRAME (action, x_dnd_return_frame_object);
      x_dnd_return_frame_object = NULL;

      return unbind_to (base, action);
    }

  x_dnd_return_frame_object = NULL;
  FRAME_DISPLAY_INFO (f)->grabbed = 0;

  if (!NILP (x_dnd_action_symbol))
    return unbind_to (base, x_dnd_action_symbol);

  if (x_dnd_action != None)
    {
      block_input ();
      x_catch_errors (FRAME_X_DISPLAY (f));
      atom_name = x_get_atom_name (FRAME_DISPLAY_INFO (f),
				   x_dnd_action, &need_sync);

      if (need_sync)
	x_uncatch_errors ();
      else
	/* No protocol request actually happened, so avoid the extra
	   sync by calling x_uncatch_errors_after_check instead.  */
	x_uncatch_errors_after_check ();

      if (atom_name)
	{
	  action = intern (atom_name);
	  xfree (atom_name);
	}
      else
	action = Qnil;
      unblock_input ();

      return unbind_to (base, action);
    }

  return unbind_to (base, Qnil);
}

#ifdef HAVE_XINPUT2

/* Disable per-device keyboard focus tracking within X toolkit and GTK
   2.x builds, given that these builds receive updates to the keyboard
   input focus as core events.  */

#if !defined USE_X_TOOLKIT && (!defined USE_GTK || defined HAVE_GTK3)

/* Since the input extension assigns a keyboard focus to each master
   device, there is no longer a 1:1 correspondence between the
   selected frame and the focus frame immediately after the keyboard
   focus is switched to a given frame.  This situation is handled by
   keeping track of each master device's focus frame, the time of the
   last interaction with that frame, and always keeping the focus on
   the most recently selected frame.  We also use the pointer of the
   device that is keeping the current frame focused in functions like
   `mouse-position'.  */

static void
xi_handle_focus_change (struct x_display_info *dpyinfo)
{
  struct input_event ie;
  struct frame *focus, *new;
  struct xi_device_t *device, *source = NULL;
  ptrdiff_t i;
  Time time;
#ifdef USE_GTK
  struct x_output *output;
  GtkWidget *widget;
#endif

  focus = dpyinfo->x_focus_frame;
  new = NULL;
  time = 0;

  dpyinfo->client_pointer_device = -1;

  for (i = 0; i < dpyinfo->num_devices; ++i)
    {
      device = &dpyinfo->devices[i];

      if (device->focus_frame
	  && device->focus_frame_time > time)
	{
	  new = device->focus_frame;
	  time = device->focus_frame_time;
	  source = device;

	  /* Use this device for future calls to `mouse-position' etc.
	     If it is a keyboard, use its attached pointer.  */

	  if (device->use == XIMasterKeyboard)
	    dpyinfo->client_pointer_device = device->attachment;
	  else
	    dpyinfo->client_pointer_device = device->device_id;
	}
      /* Even if the implicit focus was set after the explicit focus
	 on this specific device, the explicit focus is what really
	 matters.  So use it instead.  */
      else if (device->focus_implicit_frame
	       && device->focus_implicit_time > time)
	{
	  new = device->focus_implicit_frame;
	  time = device->focus_implicit_time;
	  source = device;

	  /* Use this device for future calls to `mouse-position' etc.
	     If it is a keyboard, use its attached pointer.  */

	  if (device->use == XIMasterKeyboard)
	    dpyinfo->client_pointer_device = device->attachment;
	  else
	    dpyinfo->client_pointer_device = device->device_id;
	}
    }

  if (new != focus && focus)
    {
#ifdef HAVE_X_I18N
      if (FRAME_XIC (focus))
	XUnsetICFocus (FRAME_XIC (focus));
#endif

#ifdef USE_GTK
      output = FRAME_X_OUTPUT (focus);

      if (x_gtk_use_native_input)
	{
	  gtk_im_context_focus_out (output->im_context);
	  gtk_im_context_set_client_window (output->im_context,
					    NULL);
	}
#endif

      EVENT_INIT (ie);
      ie.kind = FOCUS_OUT_EVENT;
      XSETFRAME (ie.frame_or_window, focus);

      kbd_buffer_store_event (&ie);
    }

  if (new != focus && new)
    {
#ifdef HAVE_X_I18N
      if (FRAME_XIC (new))
	XSetICFocus (FRAME_XIC (new));
#endif

#ifdef USE_GTK
      output = FRAME_X_OUTPUT (new);

      if (x_gtk_use_native_input)
	{
	  widget = FRAME_GTK_OUTER_WIDGET (new);

	  gtk_im_context_focus_in (output->im_context);
	  gtk_im_context_set_client_window (output->im_context,
					    gtk_widget_get_window (widget));
	}
#endif

      EVENT_INIT (ie);
      ie.kind = FOCUS_IN_EVENT;
      ie.device = source->name;
      XSETFRAME (ie.frame_or_window, new);

      kbd_buffer_store_event (&ie);
    }

  x_new_focus_frame (dpyinfo, new);
}

static void
xi_focus_handle_for_device (struct x_display_info *dpyinfo,
			    struct frame *mentioned_frame,
			    XIEvent *base_event)
{
  struct xi_device_t *device;
  XIEnterEvent *event;

  /* XILeaveEvent, XIFocusInEvent, etc are just synonyms for
     XIEnterEvent.  */
  event = (XIEnterEvent *) base_event;
  device = xi_device_from_id (dpyinfo, event->deviceid);

  if (!device)
    return;

  switch (event->evtype)
    {
    case XI_FocusIn:
      /* The last-focus-change time of the device changed, so update the
	 frame's user time.  */
      x_display_set_last_user_time (dpyinfo, event->time,
				    event->send_event, true);

      device->focus_frame = mentioned_frame;
      device->focus_frame_time = event->time;
      break;

    case XI_FocusOut:
      /* The last-focus-change time of the device changed, so update the
	 frame's user time.  */
      x_display_set_last_user_time (dpyinfo, event->time,
				    event->send_event, false);
      device->focus_frame = NULL;

      /* So, unfortunately, the X Input Extension is implemented such
	 that XI_Leave events will not have their focus field set if
	 the core focus is transferred to another window after an
	 entry event that pretends to (or really does) set the
	 implicit focus.  In addition, if the core focus is set, but
	 the extension focus on the client pointer is not, all
	 XI_Enter events will have their focus fields set, despite not
	 actually changing the effective focus window.  Combined with
	 almost all window managers not setting the focus on input
	 extension devices, this means that Emacs will continue to
	 think the implicit focus is set on one of its frames if the
	 actual (core) focus is transferred to another window while
	 the pointer remains inside a frame.  The only workaround in
	 this case is to clear the implicit focus along with
	 XI_FocusOut events, which is not correct at all, but better
	 than leaving frames in an incorrectly-focused state.
	 (bug#57468) */
      device->focus_implicit_frame = NULL;
      break;

    case XI_Enter:
      if (!event->focus)
	break;

      if (device->use == XIMasterPointer)
	device = xi_device_from_id (dpyinfo, device->attachment);

      if (!device)
	break;

      device->focus_implicit_frame = mentioned_frame;
      device->focus_implicit_time = event->time;
      break;

    case XI_Leave:
      if (!event->focus)
	break;

      if (device->use == XIMasterPointer)
	device = xi_device_from_id (dpyinfo, device->attachment);

      if (!device)
	break;

      device->focus_implicit_frame = NULL;
      break;
    }

  xi_handle_focus_change (dpyinfo);
}

#endif /* !USE_X_TOOLKIT && (!USE_GTK || HAVE_GTK3) */

static void
xi_handle_delete_frame (struct x_display_info *dpyinfo,
			struct frame *f)
{
  struct xi_device_t *device;
  ptrdiff_t i;

  for (i = 0; i < dpyinfo->num_devices; ++i)
    {
      device = &dpyinfo->devices[i];

      if (device->focus_frame == f)
	device->focus_frame = NULL;

      if (device->focus_implicit_frame == f)
	device->focus_implicit_frame = NULL;
    }
}

/* Handle an interaction by DEVICE on frame F.  TIME is the time of
   the interaction; if F isn't currently the global focus frame, but
   is the focus of DEVICE, make it the focus frame.  */

static void
xi_handle_interaction (struct x_display_info *dpyinfo,
		       struct frame *f, struct xi_device_t *device,
		       Time time)
{
#if !defined USE_X_TOOLKIT && (!defined USE_GTK || defined HAVE_GTK3)
  bool change;

  /* If DEVICE is a pointer, use its attached keyboard device.  */
  if (device->use == XIMasterPointer)
    device = xi_device_from_id (dpyinfo, device->attachment);

  if (!device)
    return;

  change = false;

  if (device->focus_frame == f)
    {
      device->focus_frame_time = time;
      change = true;
    }

  if (device->focus_implicit_frame == f)
    {
      device->focus_implicit_time = time;
      change = true;
    }

  /* If F isn't currently focused, update the focus state.  */
  if (change && f != dpyinfo->x_focus_frame)
    xi_handle_focus_change (dpyinfo);
#endif /* !USE_X_TOOLKIT && (!USE_GTK || HAVE_GTK3) */
}

/* Return whether or not XEV actually represents a change in the
   position of the pointer on DEVICE, with respect to the last event
   received.  This is necessary because the input extension reports
   motion events in very high resolution, while Emacs is only fast
   enough to process motion events aligned to the pixel grid.  */

static bool
xi_position_changed (struct xi_device_t *device, XIDeviceEvent *xev)
{
  bool changed;

  changed = true;

  if (xev->event != device->last_motion_window)
    goto out;

  if (lrint (xev->event_x) == device->last_motion_x
      && lrint (xev->event_y) == device->last_motion_y)
    {
      changed = false;
      goto out;
    }

 out:
  device->last_motion_x = lrint (xev->event_x);
  device->last_motion_y = lrint (xev->event_y);
  device->last_motion_window = xev->event;

  return changed;
}

static void
xi_report_motion_window_clear (struct xi_device_t *device)
{
  device->last_motion_window = None;
}

#ifdef HAVE_XINPUT2_1

/* Look up a scroll valuator in DEVICE by NUMBER.  */

static struct xi_scroll_valuator_t *
xi_get_scroll_valuator (struct xi_device_t *device, int number)
{
  int i;

  for (i = 0; i < device->scroll_valuator_count; ++i)
    {
      if (device->valuators[i].number == number)
	return &device->valuators[i];
    }

  return NULL;
}

/* Check if EVENT, a DeviceChanged event, contains any scroll
   valuators.  */

static bool
xi_has_scroll_valuators (XIDeviceChangedEvent *event)
{
  int i;

  for (i = 0; i < event->num_classes; ++i)
    {
      if (event->classes[i]->type == XIScrollClass)
	return true;
    }

  return false;
}

/* Repopulate the information (touchpoint tracking information, scroll
   valuators, etc) in DEVICE with the device classes provided in
   CLASSES.  This is called upon receiving a DeviceChanged event.

   This function is not present on XI 2.0 as there are no worthwhile
   classes there.  */

static void
xi_handle_new_classes (struct x_display_info *dpyinfo, struct xi_device_t *device,
		       XIAnyClassInfo **classes, int num_classes)
{
  XIScrollClassInfo *scroll;
  struct xi_scroll_valuator_t *valuator;
  XIValuatorClassInfo *valuator_info;
  int i;
#ifdef HAVE_XINPUT2_2
  XITouchClassInfo *touch;
#endif

  if (dpyinfo->xi2_version < 1)
    /* Emacs is connected to an XI 2.0 server, which reports no
       classes of interest.  */
    return;

  device->valuators = xnmalloc (num_classes,
				sizeof *device->valuators);
  device->scroll_valuator_count = 0;
#ifdef HAVE_XINPUT2_2
  device->direct_p = false;
#endif /* HAVE_XINPUT2_2 */

  for (i = 0; i < num_classes; ++i)
    {
      switch (classes[i]->type)
	{
	case XIScrollClass:
	  scroll = (XIScrollClassInfo *) classes[i];

	  xi_populate_scroll_valuator (device,
				       device->scroll_valuator_count++,
				       scroll);
	  break;

#ifdef HAVE_XINPUT2_2
	case XITouchClass:
	  touch = (XITouchClassInfo *) classes[i];

	  /* touch_info->mode indicates the coordinate space that this
	     device reports in its touch events.

	     DirectTouch means that the device uses a coordinate space
	     that corresponds to locations on the screen.  It is set
	     by touch screen devices which are overlaid over the
	     raster itself.

	     The other value (DependentTouch) means that the device
	     uses a separate abstract coordinate space corresponding
	     to its own surface.  Emacs ignores events from these
	     devices because it does not support recognizing touch
	     gestures from surfaces other than the screen.

	     Master devices may report multiple touch classes for
	     attached slave devices, leaving the nature of touch
	     events they send ambiguous.  The problem of
	     discriminating between these events is bypassed entirely
	     through only processing touch events from the slave
	     devices where they originate.  */

	  if (touch->mode == XIDirectTouch)
	    device->direct_p = true;
	  else
	    device->direct_p = false;

	  break;
#endif /* HAVE_XINPUT2_2 */
	}
    }

  /* Restore the values of any scroll valuators that we already
     know about.  */

  for (i = 0; i < num_classes; ++i)
    {
      if (classes[i]->type != XIValuatorClass)
	continue;

      valuator_info = (XIValuatorClassInfo *) classes[i];

      /* Avoid restoring bogus values if some driver accidentally
	 specifies relative values in scroll valuator classes how the
	 input extension spec says they should be, but allow restoring
	 values when a value is set, which is how the input extension
	 actually behaves.  */

      if (valuator_info->value == 0.0
	  && valuator_info->mode != XIModeAbsolute)
	continue;

      valuator = xi_get_scroll_valuator (device,
					 valuator_info->number);

      if (!valuator)
	continue;

      valuator->invalid_p = false;
      valuator->current_value = valuator_info->value;
      valuator->emacs_value = 0;

      break;
    }
}

#endif /* HAVE_XINPUT2_1 */

/* Handle EVENT, a DeviceChanged event.  Look up the device that
   changed, and update its information with the data in EVENT.  */

static void
xi_handle_device_changed (struct x_display_info *dpyinfo,
			  struct xi_device_t *device,
			  XIDeviceChangedEvent *event)
{
#ifdef HAVE_XINPUT2_1
  int ndevices;
  XIDeviceInfo *info;
#endif
#ifdef HAVE_XINPUT2_2
  struct xi_touch_point_t *tem, *last;
#endif

#ifdef HAVE_XINPUT2_1
  if (xi_has_scroll_valuators (event))
    /* Scroll valuators are provided by this event.  Use the values
       provided in this event to populate the device's new scroll
       valuator list: if this event is a SlaveSwitch event caused by
       wheel movement, then querying for the device info will probably
       return the value after the wheel movement, leading to a delta
       of 0 being computed upon handling the subsequent XI_Motion
       event.  (bug#58980) */
    xi_handle_new_classes (dpyinfo, device, event->classes,
			   event->num_classes);
  else
    {
      /* When a DeviceChange event is received for a master device,
	 the X server sometimes does not send any scroll valuators
	 along with it.  This is possibly an X server bug but I really
	 don't want to dig any further, so fetch the scroll valuators
	 manually.  (bug#57020) */

      x_catch_errors (dpyinfo->display);
      info = XIQueryDevice (dpyinfo->display, event->deviceid,
			    /* ndevices is always 1 if a deviceid is
			       specified.  If the request fails, NULL will
			       be returned.  */
			    &ndevices);
      x_uncatch_errors ();

      if (!info)
	return;

      /* info contains the classes currently associated with the
	 event.  Apply them.  */
      xi_handle_new_classes (dpyinfo, device, info->classes,
			     info->num_classes);
    }
#endif

#ifdef HAVE_XINPUT2_2
  /* The device is no longer a DirectTouch device, so remove any
     touchpoints that we might have recorded.  */
  if (!device->direct_p)
    {
      tem = device->touchpoints;

      while (tem)
	{
	  last = tem;
	  tem = tem->next;
	  xfree (last);
	}

      device->touchpoints = NULL;
    }
#endif
}

/* Remove the client-side record of every device in TO_DISABLE.
   Called while processing XI_HierarchyChanged events.  We batch up
   multiple disabled devices because it is more efficient to disable
   them at once.  */

static void
xi_disable_devices (struct x_display_info *dpyinfo,
		    int *to_disable, int n_disabled)
{
  struct xi_device_t *devices;
  int ndevices, i, j;
#ifdef HAVE_XINPUT2_2
  struct xi_touch_point_t *tem, *last;
#endif
#if defined HAVE_XINPUT2_2 && !defined HAVE_EXT_TOOL_BAR
  struct x_output *output;
  Lisp_Object tail, frame;
#endif

  /* Don't pointlessly copy dpyinfo->devices if there are no devices
     to disable.  */
  if (!n_disabled)
    return;

  ndevices = 0;
  devices = xzalloc (sizeof *devices * dpyinfo->num_devices);

  /* Loop through every device currently in DPYINFO, and copy it to
     DEVICES if it is not in TO_DISABLE.  Note that this function
     should be called with input blocked, since xfree can otherwise
     call GC, which will call mark_xterm with invalid state.  */
  for (i = 0; i < dpyinfo->num_devices; ++i)
    {
      for (j = 0; j < n_disabled; ++j)
	{
	  if (to_disable[j] == dpyinfo->devices[i].device_id)
	    {
	      if (x_dnd_in_progress
		  /* If the drag-and-drop pointer device is being
		     disabled, then cancel the drag and drop
		     operation.  */
		  && to_disable[j] == x_dnd_pointer_device)
		x_dnd_cancel_dnd_early ();

	      /* Free any scroll valuators that might be on this
		 device.  */
#ifdef HAVE_XINPUT2_1
	      xfree (dpyinfo->devices[i].valuators);
#endif

	      /* Free any currently active touch points on this
		 device.  */
#ifdef HAVE_XINPUT2_2
	      tem = dpyinfo->devices[i].touchpoints;
	      while (tem)
		{
		  last = tem;
		  tem = tem->next;
		  xfree (last);
		}

#ifndef HAVE_EXT_TOOL_BAR

	      /* Now look through each frame on DPYINFO.  If it has an
		 outstanding tool bar press for this device, release
		 the tool bar.  */

	      FOR_EACH_FRAME (tail, frame)
		{
		  if (!FRAME_X_P (XFRAME (frame))
		      || (FRAME_DISPLAY_INFO (XFRAME (frame))
			  != dpyinfo))
		    continue;

		  output = FRAME_OUTPUT_DATA (XFRAME (frame));

		  if (output->tool_bar_touch_device
		      == dpyinfo->devices[i].device_id)
		    {
		      if (XFRAME (frame)->last_tool_bar_item != -1
			  && WINDOWP (XFRAME (frame)->tool_bar_window))
			handle_tool_bar_click (XFRAME (frame), 0, 0,
					       false, 0);

		      output->tool_bar_touch_device = 0;
		    }
		}
#endif
#endif

	      goto out;
	    }

	  devices[ndevices++] = dpyinfo->devices[i];

	out:
	  continue;
	}
    }

  /* Free the old devices array and replace it with ndevices.  */
  xfree (dpyinfo->devices);

  dpyinfo->devices = devices;
  dpyinfo->num_devices = ndevices;
}

#endif

/* The focus may have changed.  Figure out if it is a real focus change,
   by checking both FocusIn/Out and Enter/LeaveNotify events.

   Returns FOCUS_IN_EVENT event in *BUFP. */

static void
x_detect_focus_change (struct x_display_info *dpyinfo, struct frame *frame,
		       const XEvent *event, struct input_event *bufp)
{
  if (!frame)
    return;

  switch (event->type)
    {
    case EnterNotify:
    case LeaveNotify:
      {
        struct frame *focus_frame = dpyinfo->x_focus_event_frame;
        int focus_state
          = focus_frame ? focus_frame->output_data.x->focus_state : 0;

        if (event->xcrossing.detail != NotifyInferior
            && event->xcrossing.focus
            && ! (focus_state & FOCUS_EXPLICIT))
          x_focus_changed ((event->type == EnterNotify ? FocusIn : FocusOut),
			   FOCUS_IMPLICIT,
			   dpyinfo, frame, bufp);
      }
      break;

    case FocusIn:
    case FocusOut:
      /* Ignore transient focus events from hotkeys, window manager
         gadgets, and other odd sources.  Some buggy window managers
         (e.g., Muffin 4.2.4) send FocusIn events of this type without
         corresponding FocusOut events even when some other window
         really has focus, and these kinds of focus event don't
         correspond to real user input changes.  GTK+ uses the same
         filtering. */
      if (event->xfocus.mode == NotifyGrab
          || event->xfocus.mode == NotifyUngrab)
        return;
      x_focus_changed (event->type,
		       (event->xfocus.detail == NotifyPointer ?
			FOCUS_IMPLICIT : FOCUS_EXPLICIT),
		       dpyinfo, frame, bufp);
      break;

    case ClientMessage:
      if (event->xclient.message_type == dpyinfo->Xatom_XEMBED)
	{
	  enum xembed_message msg = event->xclient.data.l[1];
	  x_focus_changed ((msg == XEMBED_FOCUS_IN ? FocusIn : FocusOut),
			   FOCUS_EXPLICIT, dpyinfo, frame, bufp);
	}
      break;
    }
}


#if (defined USE_LUCID && defined HAVE_XINPUT2) \
  || (!defined USE_X_TOOLKIT && !defined USE_GTK)
/* Handle an event saying the mouse has moved out of an Emacs frame.  */

void
x_mouse_leave (struct x_display_info *dpyinfo)
{
#if defined HAVE_XINPUT2 && !defined USE_X_TOOLKIT
  struct xi_device_t *device;
#endif
  Mouse_HLInfo *hlinfo;

  hlinfo = &dpyinfo->mouse_highlight;

  if (hlinfo->mouse_face_mouse_frame)
    {
      clear_mouse_face (hlinfo);
      hlinfo->mouse_face_mouse_frame = NULL;
    }

#if defined HAVE_XINPUT2 && !defined USE_X_TOOLKIT
  if (!dpyinfo->supports_xi2)
    /* The call below is supposed to reset the implicit focus and
       revert the focus back to the last explicitly focused frame.  It
       doesn't work on input extension builds because focus tracking
       does not set x_focus_event_frame, and proceeds on a per-device
       basis.  On such builds, clear the implicit focus of the client
       pointer instead.  */
#endif
    x_new_focus_frame (dpyinfo, dpyinfo->x_focus_event_frame);
#if defined HAVE_XINPUT2 && !defined USE_X_TOOLKIT
  else
    {
      if (dpyinfo->client_pointer_device == -1)
	/* If there's no client pointer device, then no implicit focus
	   is currently set.  */
	return;

      device = xi_device_from_id (dpyinfo, dpyinfo->client_pointer_device);

      if (device && device->focus_implicit_frame)
	{
	  device->focus_implicit_frame = NULL;

	  /* The focus might have changed; compute the new focus.  */
	  xi_handle_focus_change (dpyinfo);
	}
    }
#endif
}
#endif

/* The focus has changed, or we have redirected a frame's focus to
   another frame (this happens when a frame uses a surrogate
   mini-buffer frame).  Shift the highlight as appropriate.

   The FRAME argument doesn't necessarily have anything to do with which
   frame is being highlighted or un-highlighted; we only use it to find
   the appropriate X display info.  */

static void
XTframe_rehighlight (struct frame *frame)
{
  x_frame_rehighlight (FRAME_DISPLAY_INFO (frame));
}

static void
x_frame_rehighlight (struct x_display_info *dpyinfo)
{
  struct frame *old_highlight = dpyinfo->highlight_frame;

  if (dpyinfo->x_focus_frame)
    {
      dpyinfo->highlight_frame
	= ((FRAMEP (FRAME_FOCUS_FRAME (dpyinfo->x_focus_frame)))
	   ? XFRAME (FRAME_FOCUS_FRAME (dpyinfo->x_focus_frame))
	   : dpyinfo->x_focus_frame);
      if (! FRAME_LIVE_P (dpyinfo->highlight_frame))
	{
	  fset_focus_frame (dpyinfo->x_focus_frame, Qnil);
	  dpyinfo->highlight_frame = dpyinfo->x_focus_frame;
	}
    }
  else
    dpyinfo->highlight_frame = 0;

  if (dpyinfo->highlight_frame != old_highlight)
    {
      if (old_highlight)
	x_frame_unhighlight (old_highlight);
      if (dpyinfo->highlight_frame)
	x_frame_highlight (dpyinfo->highlight_frame);
    }
}


\f
/* Keyboard processing - modifier keys, vendor-specific keysyms, etc.  */

/* Initialize mode_switch_bit and modifier_meaning.  */
static void
x_find_modifier_meanings (struct x_display_info *dpyinfo)
{
  int min_code, max_code;
  KeySym *syms;
  int syms_per_code;
  XModifierKeymap *mods;
#ifdef HAVE_XKB
  int i;
  int found_meta_p = false;
  unsigned int vmodmask;
#endif

  dpyinfo->meta_mod_mask = 0;
  dpyinfo->shift_lock_mask = 0;
  dpyinfo->alt_mod_mask = 0;
  dpyinfo->super_mod_mask = 0;
  dpyinfo->hyper_mod_mask = 0;

#ifdef HAVE_XKB
  if (dpyinfo->xkb_desc
      && dpyinfo->xkb_desc->server)
    {
      for (i = 0; i < XkbNumVirtualMods; i++)
	{
	  vmodmask = dpyinfo->xkb_desc->server->vmods[i];

	  if (dpyinfo->xkb_desc->names->vmods[i] == dpyinfo->Xatom_Meta)
	    {
	      dpyinfo->meta_mod_mask |= vmodmask;

	      if (vmodmask)
		found_meta_p = true;
	    }
	  else if (dpyinfo->xkb_desc->names->vmods[i] == dpyinfo->Xatom_Alt)
	    dpyinfo->alt_mod_mask |= vmodmask;
	  else if (dpyinfo->xkb_desc->names->vmods[i] == dpyinfo->Xatom_Super)
	    dpyinfo->super_mod_mask |= vmodmask;
	  else if (dpyinfo->xkb_desc->names->vmods[i] == dpyinfo->Xatom_Hyper)
	    dpyinfo->hyper_mod_mask |= vmodmask;
	  else if (dpyinfo->xkb_desc->names->vmods[i] == dpyinfo->Xatom_ShiftLock)
	    dpyinfo->shift_lock_mask |= vmodmask;
	}

      if (!found_meta_p)
	{
	  dpyinfo->meta_mod_mask = dpyinfo->alt_mod_mask;
	  dpyinfo->alt_mod_mask = 0;
	}

      if (dpyinfo->alt_mod_mask & dpyinfo->meta_mod_mask)
	dpyinfo->alt_mod_mask &= ~dpyinfo->meta_mod_mask;

      if (dpyinfo->hyper_mod_mask & dpyinfo->super_mod_mask)
	dpyinfo->hyper_mod_mask &= ~dpyinfo->super_mod_mask;

      return;
    }
#endif

  XDisplayKeycodes (dpyinfo->display, &min_code, &max_code);

  syms = XGetKeyboardMapping (dpyinfo->display,
			      min_code, max_code - min_code + 1,
			      &syms_per_code);

  if (!syms)
    {
      dpyinfo->meta_mod_mask = Mod1Mask;
      dpyinfo->super_mod_mask = Mod2Mask;
      return;
    }

  mods = XGetModifierMapping (dpyinfo->display);

  /* Scan the modifier table to see which modifier bits the Meta and
     Alt keysyms are on.  */
  {
    int row, col;	/* The row and column in the modifier table.  */
    bool found_alt_or_meta;

    for (row = 3; row < 8; row++)
      {
	found_alt_or_meta = false;
	for (col = 0; col < mods->max_keypermod; col++)
	  {
	    KeyCode code = mods->modifiermap[(row * mods->max_keypermod) + col];

	    /* Zeroes are used for filler.  Skip them.  */
	    if (code == 0)
	      continue;

	    /* Are any of this keycode's keysyms a meta key?  */
	    {
	      int code_col;

	      for (code_col = 0; code_col < syms_per_code; code_col++)
		{
		  int sym = syms[((code - min_code) * syms_per_code) + code_col];

		  switch (sym)
		    {
		    case XK_Meta_L:
		    case XK_Meta_R:
		      found_alt_or_meta = true;
		      dpyinfo->meta_mod_mask |= (1 << row);
		      break;

		    case XK_Alt_L:
		    case XK_Alt_R:
		      found_alt_or_meta = true;
		      dpyinfo->alt_mod_mask |= (1 << row);
		      break;

		    case XK_Hyper_L:
		    case XK_Hyper_R:
		      if (!found_alt_or_meta)
			dpyinfo->hyper_mod_mask |= (1 << row);
		      code_col = syms_per_code;
		      col = mods->max_keypermod;
		      break;

		    case XK_Super_L:
		    case XK_Super_R:
		      if (!found_alt_or_meta)
			dpyinfo->super_mod_mask |= (1 << row);
		      code_col = syms_per_code;
		      col = mods->max_keypermod;
		      break;

		    case XK_Shift_Lock:
		      /* Ignore this if it's not on the lock modifier.  */
		      if (!found_alt_or_meta && ((1 << row) == LockMask))
			dpyinfo->shift_lock_mask = LockMask;
		      code_col = syms_per_code;
		      col = mods->max_keypermod;
		      break;
		    }
		}
	    }
	  }
      }
  }

  /* If we couldn't find any meta keys, accept any alt keys as meta keys.  */
  if (! dpyinfo->meta_mod_mask)
    {
      dpyinfo->meta_mod_mask = dpyinfo->alt_mod_mask;
      dpyinfo->alt_mod_mask = 0;
    }

  /* If some keys are both alt and meta,
     make them just meta, not alt.  */
  if (dpyinfo->alt_mod_mask & dpyinfo->meta_mod_mask)
    {
      dpyinfo->alt_mod_mask &= ~dpyinfo->meta_mod_mask;
    }

  /* If some keys are both super and hyper, make them just super.
     Many X servers are misconfigured so that super and hyper are both
     Mod4, but most users have no hyper key.  */
  if (dpyinfo->hyper_mod_mask & dpyinfo->super_mod_mask)
    dpyinfo->hyper_mod_mask &= ~dpyinfo->super_mod_mask;

  XFree (syms);

  if (dpyinfo->modmap)
    XFreeModifiermap (dpyinfo->modmap);
  dpyinfo->modmap = mods;
}

/* Convert between the modifier bits X uses and the modifier bits
   Emacs uses.  */

int
x_x_to_emacs_modifiers (struct x_display_info *dpyinfo, int state)
{
  int mod_ctrl = ctrl_modifier;
  int mod_meta = meta_modifier;
  int mod_alt  = alt_modifier;
  int mod_hyper = hyper_modifier;
  int mod_super = super_modifier;
  Lisp_Object tem;

  tem = Fget (Vx_ctrl_keysym, Qmodifier_value);
  if (FIXNUMP (tem)) mod_ctrl = XFIXNUM (tem) & INT_MAX;
  tem = Fget (Vx_alt_keysym, Qmodifier_value);
  if (FIXNUMP (tem)) mod_alt = XFIXNUM (tem) & INT_MAX;
  tem = Fget (Vx_meta_keysym, Qmodifier_value);
  if (FIXNUMP (tem)) mod_meta = XFIXNUM (tem) & INT_MAX;
  tem = Fget (Vx_hyper_keysym, Qmodifier_value);
  if (FIXNUMP (tem)) mod_hyper = XFIXNUM (tem) & INT_MAX;
  tem = Fget (Vx_super_keysym, Qmodifier_value);
  if (FIXNUMP (tem)) mod_super = XFIXNUM (tem) & INT_MAX;

  return (  ((state & (ShiftMask | dpyinfo->shift_lock_mask)) ? shift_modifier : 0)
            | ((state & ControlMask)			? mod_ctrl	: 0)
            | ((state & dpyinfo->meta_mod_mask)		? mod_meta	: 0)
            | ((state & dpyinfo->alt_mod_mask)		? mod_alt	: 0)
            | ((state & dpyinfo->super_mod_mask)	? mod_super	: 0)
            | ((state & dpyinfo->hyper_mod_mask)	? mod_hyper	: 0));
}

int
x_emacs_to_x_modifiers (struct x_display_info *dpyinfo, intmax_t state)
{
  EMACS_INT mod_ctrl = ctrl_modifier;
  EMACS_INT mod_meta = meta_modifier;
  EMACS_INT mod_alt  = alt_modifier;
  EMACS_INT mod_hyper = hyper_modifier;
  EMACS_INT mod_super = super_modifier;

  Lisp_Object tem;

  tem = Fget (Vx_ctrl_keysym, Qmodifier_value);
  if (FIXNUMP (tem)) mod_ctrl = XFIXNUM (tem);
  tem = Fget (Vx_alt_keysym, Qmodifier_value);
  if (FIXNUMP (tem)) mod_alt = XFIXNUM (tem);
  tem = Fget (Vx_meta_keysym, Qmodifier_value);
  if (FIXNUMP (tem)) mod_meta = XFIXNUM (tem);
  tem = Fget (Vx_hyper_keysym, Qmodifier_value);
  if (FIXNUMP (tem)) mod_hyper = XFIXNUM (tem);
  tem = Fget (Vx_super_keysym, Qmodifier_value);
  if (FIXNUMP (tem)) mod_super = XFIXNUM (tem);


  return (  ((state & mod_alt)		? dpyinfo->alt_mod_mask   : 0)
            | ((state & mod_super)	? dpyinfo->super_mod_mask : 0)
            | ((state & mod_hyper)	? dpyinfo->hyper_mod_mask : 0)
            | ((state & shift_modifier)	? ShiftMask        : 0)
            | ((state & mod_ctrl)	? ControlMask      : 0)
            | ((state & mod_meta)	? dpyinfo->meta_mod_mask  : 0));
}

/* Convert a keysym to its name.  */

char *
get_keysym_name (int keysym)
{
  char *value;

  block_input ();
  value = XKeysymToString (keysym);
  unblock_input ();

  return value;
}

/* Given the root and event coordinates of an X event destined for F's
   edit window, compute the offset between that window and F's root
   window.  This information is then used as an optimization to avoid
   synchronizing when converting coordinates from some other event to
   F's edit window.  */

static void
x_compute_root_window_offset (struct frame *f, int root_x, int root_y,
			      int event_x, int event_y)
{
  FRAME_X_OUTPUT (f)->window_offset_certain_p = true;
  FRAME_X_OUTPUT (f)->root_x = root_x - event_x;
  FRAME_X_OUTPUT (f)->root_y = root_y - event_y;
}

/* Translate the given coordinates from the root window to the edit
   window of FRAME, taking into account any cached root window
   offsets.  This allows Emacs to avoid excessive calls to _XReply in
   many cases while handling events, which would otherwise result in
   slowdowns over slow network connections.  */

void
x_translate_coordinates (struct frame *f, int root_x, int root_y,
			 int *x_out, int *y_out)
{
  struct x_output *output;
  Window dummy;

  output = FRAME_X_OUTPUT (f);

  if (output->window_offset_certain_p)
    {
      /* Use the cached root window offset.  */
      *x_out = root_x - output->root_x;
      *y_out = root_y - output->root_y;

      return;
    }

  /* Otherwise, do the transformation manually.  Then, cache the root
     window position.  */
  if (!XTranslateCoordinates (FRAME_X_DISPLAY (f),
			      FRAME_DISPLAY_INFO (f)->root_window,
			      FRAME_X_WINDOW (f), root_x, root_y,
			      x_out, y_out, &dummy))
    /* Use some dummy values.  This is not supposed to be called with
       coordinates out of the screen.  */
    *x_out = 0, *y_out = 0;
  else
    {
      /* Cache the root window offset of the edit window.  */
      output->window_offset_certain_p = true;
      output->root_x = root_x - *x_out;
      output->root_y = root_y - *y_out;
    }
}

/* Translate the given coordinates from the edit window of FRAME,
   taking into account any cached root window offsets.  This is mainly
   used from the popup menu code.  */

void
x_translate_coordinates_to_root (struct frame *f, int x, int y,
				 int *x_out, int *y_out)
{
  struct x_output *output;
  Window dummy;

  output = FRAME_X_OUTPUT (f);

  if (output->window_offset_certain_p)
    {
      /* Use the cached root window offset.  */
      *x_out = x + output->root_x;
      *y_out = y + output->root_y;

      return;
    }

  /* Otherwise, do the transform manually and compute and cache the
     root window position.  */
  if (!XTranslateCoordinates (FRAME_X_DISPLAY (f), FRAME_X_WINDOW (f),
			      FRAME_DISPLAY_INFO (f)->root_window,
			      x, y, x_out, y_out, &dummy))
    *x_out = 0, *y_out = 0;
  else
    {
      /* Cache the root window offset of the edit window.  */
      output->window_offset_certain_p = true;
      output->root_x = *x_out - x;
      output->root_y = *y_out - y;
    }
}

/* Do x-translate-coordinates, but try to avoid a roundtrip to the X
   server at the cost of not returning `child', which most callers
   have no reason to use.  */

Lisp_Object
x_handle_translate_coordinates (struct frame *f, Lisp_Object dest_window,
				int source_x, int source_y)
{
  if (NILP (dest_window))
    {
      /* We are translating coordinates from a frame to the root
	 window.  Avoid a roundtrip if possible by using cached
	 coordinates.  */

      if (!FRAME_X_OUTPUT (f)->window_offset_certain_p)
	return Qnil;

      return list3 (make_fixnum (source_x + FRAME_X_OUTPUT (f)->root_x),
		    make_fixnum (source_y + FRAME_X_OUTPUT (f)->root_y),
		    Qnil);
    }

  return Qnil;
}

/* The same, but for an XIDeviceEvent.  */

#ifdef HAVE_XINPUT2

static void
xi_compute_root_window_offset (struct frame *f, XIDeviceEvent *xev)
{
  /* Truncate coordinates instead of rounding them, because that is
     how the X server handles window hierarchy.  */
  x_compute_root_window_offset (f, xev->root_x, xev->root_y,
				xev->event_x, xev->event_y);
}

static void
xi_compute_root_window_offset_enter (struct frame *f, XIEnterEvent *enter)
{
  x_compute_root_window_offset (f, enter->root_x, enter->root_y,
				enter->event_x, enter->event_y);
}

#ifdef HAVE_XINPUT2_4

static void
xi_compute_root_window_offset_pinch (struct frame *f, XIGesturePinchEvent *pev)
{
  /* Truncate coordinates instead of rounding them, because that is
     how the X server handles window hierarchy.  */
  x_compute_root_window_offset (f, pev->root_x, pev->root_y,
				pev->event_x, pev->event_y);
}

#endif

#endif

static Bool
x_query_pointer_1 (struct x_display_info *dpyinfo,
		   int client_pointer_device, Window w,
		   Window *root_return, Window *child_return,
		   int *root_x_return, int *root_y_return,
		   int *win_x_return, int *win_y_return,
		   unsigned int *mask_return)
{
  Bool rc;
  Display *dpy;
#ifdef HAVE_XINPUT2
  bool had_errors;
  XIModifierState modifiers;
  XIButtonState buttons;
  XIGroupState group; /* Unused.  */
  double root_x, root_y, win_x, win_y;
  unsigned int state;
#endif

  dpy = dpyinfo->display;

#ifdef HAVE_XINPUT2
  if (client_pointer_device != -1)
    {
      /* Catch errors caused by the device going away.  This is not
	 very expensive, since XIQueryPointer will sync anyway.  */
      x_catch_errors (dpy);
      rc = XIQueryPointer (dpyinfo->display,
			   dpyinfo->client_pointer_device,
			   w, root_return, child_return,
			   &root_x, &root_y, &win_x, &win_y,
			   &buttons, &modifiers, &group);
      had_errors = x_had_errors_p (dpy);
      x_uncatch_errors_after_check ();

      if (had_errors)
	{
	  /* If the specified client pointer is the display's client
	     pointer, clear it now.  A new client pointer might not be
	     found before the next call to x_query_pointer_1 and
	     waiting for the error leads to excessive syncing.  */

	  if (client_pointer_device == dpyinfo->client_pointer_device)
	    dpyinfo->client_pointer_device = -1;

	  rc = XQueryPointer (dpyinfo->display, w, root_return,
			      child_return, root_x_return,
			      root_y_return, win_x_return,
			      win_y_return, mask_return);
	}
      else
	{
	  state = 0;

	  xi_convert_button_state (&buttons, &state);
	  *mask_return = state | modifiers.effective;

	  XFree (buttons.mask);

	  *root_x_return = lrint (root_x);
	  *root_y_return = lrint (root_y);
	  *win_x_return = lrint (win_x);
	  *win_y_return = lrint (win_y);
	}
    }
  else
#endif
    rc = XQueryPointer (dpy, w, root_return, child_return,
			root_x_return, root_y_return, win_x_return,
			win_y_return, mask_return);

  return rc;
}

Bool
x_query_pointer (Display *dpy, Window w, Window *root_return,
		 Window *child_return, int *root_x_return,
		 int *root_y_return, int *win_x_return,
		 int *win_y_return, unsigned int *mask_return)
{
  struct x_display_info *dpyinfo;

  dpyinfo = x_display_info_for_display (dpy);

  if (!dpyinfo)
    emacs_abort ();

#ifdef HAVE_XINPUT2
  return x_query_pointer_1 (dpyinfo, dpyinfo->client_pointer_device,
			    w, root_return, child_return, root_x_return,
			    root_y_return, win_x_return, win_y_return,
			    mask_return);
#else
  return x_query_pointer_1 (dpyinfo, -1, w, root_return, child_return,
			    root_x_return, root_y_return, win_x_return,
			    win_y_return, mask_return);
#endif
}

/* Mouse clicks and mouse movement.  Rah.

   Formerly, we used PointerMotionHintMask (in standard_event_mask)
   so that we would have to call XQueryPointer after each MotionNotify
   event to ask for another such event.  However, this made mouse tracking
   slow, and there was a bug that made it eventually stop.

   Simply asking for MotionNotify all the time seems to work better.

   In order to avoid asking for motion events and then throwing most
   of them away or busy-polling the server for mouse positions, we ask
   the server for pointer motion hints.  This means that we get only
   one event per group of mouse movements.  "Groups" are delimited by
   other kinds of events (focus changes and button clicks, for
   example), or by XQueryPointer calls; when one of these happens, we
   get another MotionNotify event the next time the mouse moves.  This
   is at least as efficient as getting motion events when mouse
   tracking is on, and I suspect only negligibly worse when tracking
   is off.  */

/* Prepare a mouse-event in *RESULT for placement in the input queue.

   If the event is a button press, then note that we have grabbed
   the mouse.

   The XButtonEvent structure passed as EVENT might not come from the
   X server, and instead be artificially constructed from input
   extension events.  In these special events, the only fields that
   are initialized are `time', `button', `state', `type', `window' and
   `x', `y', `x_root' and `y_root'.  This function should not access
   any other fields in EVENT without also initializing the
   corresponding fields in `bv' under the XI_ButtonPress and
   XI_ButtonRelease labels inside `handle_one_xevent'.

   XI2 indicates that this click comes from XInput2 rather than core
   event.   */

static Lisp_Object
x_construct_mouse_click (struct input_event *result,
                         const XButtonEvent *event,
                         struct frame *f, bool xi2)
{
  int x = event->x;
  int y = event->y;

  result->kind = MOUSE_CLICK_EVENT;
  result->code = event->button - Button1;
  result->timestamp = event->time;
  result->modifiers = (x_x_to_emacs_modifiers (FRAME_DISPLAY_INFO (f),
					       event->state)
		       | (event->type == ButtonRelease
			  ? up_modifier
			  : down_modifier));

  /* Convert pre-XInput2 wheel events represented as mouse-clicks.  */
  if (!xi2)
    {
      Lisp_Object base
        = Fcdr_safe (Fassq (make_fixnum (result->code + 1),
                            Fsymbol_value (Qmouse_wheel_buttons)));
      int wheel
        = (NILP (base) ? -1
           : BASE_EQ (base, Qwheel_down)  ? 0
           : BASE_EQ (base, Qwheel_up)    ? 1
           : BASE_EQ (base, Qwheel_left)  ? 2
           : BASE_EQ (base, Qwheel_right) ? 3
           : -1);
      if (wheel >= 0)
        {
          result->kind = (event->type != ButtonRelease ? NO_EVENT
		          : wheel & 2 ? HORIZ_WHEEL_EVENT : WHEEL_EVENT);
          result->code = 0;         /* Not used.  */
          result->modifiers &= ~(up_modifier || down_modifier);
          result->modifiers |= wheel & 1 ? up_modifier : down_modifier;
        }
    }

  /* If result->window is not the frame's edit widget (which can
     happen with GTK+ scroll bars, for example), translate the
     coordinates so they appear at the correct position.  */
  if (event->window != FRAME_X_WINDOW (f))
    x_translate_coordinates (f, event->x_root, event->y_root,
			     &x, &y);

  XSETINT (result->x, x);
  XSETINT (result->y, y);
  XSETFRAME (result->frame_or_window, f);
  result->arg = Qnil;
  return Qnil;
}

/* Function to report a mouse movement to the mainstream Emacs code.
   The input handler calls this.

   We have received a mouse movement event, which is given in *event.
   If the mouse is over a different glyph than it was last time, tell
   the mainstream emacs code by setting mouse_moved.  If not, ask for
   another motion event, so we can check again the next time it moves.

   The XMotionEvent structure passed as EVENT might not come from the
   X server, and instead be artificially constructed from input
   extension events.  In these special events, the only fields that
   are initialized are `time', `window', `send_event', `x' and `y'.
   This function should not access any other fields in EVENT without
   also initializing the corresponding fields in `ev' under the
   XI_Motion, XI_Enter and XI_Leave labels inside
   `handle_one_xevent'.  */

static bool
x_note_mouse_movement (struct frame *frame, const XMotionEvent *event,
		       Lisp_Object device)
{
  XRectangle *r;
  struct x_display_info *dpyinfo;

  if (!FRAME_X_OUTPUT (frame))
    return false;

  dpyinfo = FRAME_DISPLAY_INFO (frame);
  dpyinfo->last_mouse_movement_time = event->time;
  dpyinfo->last_mouse_movement_time_send_event = event->send_event;
  dpyinfo->last_mouse_motion_frame = frame;
  dpyinfo->last_mouse_motion_x = event->x;
  dpyinfo->last_mouse_motion_y = event->y;

  if (event->window != FRAME_X_WINDOW (frame))
    {
      frame->mouse_moved = true;
      frame->last_mouse_device = device;
      dpyinfo->last_mouse_scroll_bar = NULL;
      note_mouse_highlight (frame, -1, -1);
      dpyinfo->last_mouse_glyph_frame = NULL;
      return true;
    }


  /* Has the mouse moved off the glyph it was on at the last sighting?  */
  r = &dpyinfo->last_mouse_glyph;
  if (frame != dpyinfo->last_mouse_glyph_frame
      || event->x < r->x || event->x >= r->x + r->width
      || event->y < r->y || event->y >= r->y + r->height)
    {
      frame->mouse_moved = true;
      frame->last_mouse_device = device;
      dpyinfo->last_mouse_scroll_bar = NULL;
      note_mouse_highlight (frame, event->x, event->y);
      /* Remember which glyph we're now on.  */
      remember_mouse_glyph (frame, event->x, event->y, r);
      dpyinfo->last_mouse_glyph_frame = frame;
      return true;
    }

  return false;
}

/* Get a sibling below WINDOW on DPY at PARENT_X and PARENT_Y.  */
static Window
x_get_window_below (Display *dpy, Window window,
		    int parent_x, int parent_y,
		    int *inner_x, int *inner_y)
{
  int rc, i, cx, cy;
  XWindowAttributes attrs;
  unsigned int nchildren;
  Window root, parent, *children, value;
  bool window_seen;

  /* TODO: rewrite to have less dependencies.  */

  children = NULL;
  window_seen = false;
  value = None;

  rc = XQueryTree (dpy, window, &root, &parent,
		   &children, &nchildren);

  if (rc)
    {
      if (children)
	XFree (children);

      rc = XQueryTree (dpy, parent, &root,
		       &parent, &children, &nchildren);
    }

  if (rc)
    {
      for (i = nchildren - 1; i >= 0; --i)
	{
	  if (children[i] == window)
	    {
	      window_seen = true;
	      continue;
	    }

	  if (!window_seen)
	    continue;

	  rc = XGetWindowAttributes (dpy, children[i], &attrs);

	  if (rc && attrs.map_state != IsViewable)
	    continue;

	  if (rc && parent_x >= attrs.x
	      && parent_y >= attrs.y
	      && parent_x < attrs.x + attrs.width
	      && parent_y < attrs.y + attrs.height)
	    {
	      value = children[i];
	      cx = parent_x - attrs.x;
	      cy = parent_y - attrs.y;

	      break;
	    }
	}
    }

  if (children)
    XFree (children);

  if (value)
    {
      *inner_x = cx;
      *inner_y = cy;
    }

  return value;
}

/* Like XTmouse_position, but much faster.  */

static void
x_fast_mouse_position (struct frame **fp, int insist, Lisp_Object *bar_window,
		       enum scroll_bar_part *part, Lisp_Object *x, Lisp_Object *y,
		       Time *timestamp)
{
  int root_x, root_y, win_x, win_y;
  unsigned int mask;
  Window dummy;
  struct scroll_bar *bar;
  struct x_display_info *dpyinfo;
  Lisp_Object tail, frame;
  struct frame *f1;

  dpyinfo = FRAME_DISPLAY_INFO (*fp);

  if (dpyinfo->last_mouse_scroll_bar && !insist)
    {
      bar = dpyinfo->last_mouse_scroll_bar;

      if (bar->horizontal)
	x_horizontal_scroll_bar_report_motion (fp, bar_window, part,
					       x, y, timestamp);
      else
	x_scroll_bar_report_motion (fp, bar_window, part,
				    x, y, timestamp);

      return;
    }

  if (!EQ (Vx_use_fast_mouse_position, Qreally_fast))
    {
      /* This means that Emacs should select a frame and report the
	 mouse position relative to it.  The approach used here avoids
	 making multiple roundtrips to the X server querying for the
	 window beneath the pointer, and was borrowed from
	 haiku_mouse_position in haikuterm.c.  */

      FOR_EACH_FRAME (tail, frame)
	{
	  if (FRAME_X_P (XFRAME (frame))
	      && (FRAME_DISPLAY_INFO (XFRAME (frame))
		  == dpyinfo))
	    XFRAME (frame)->mouse_moved = false;
	}

      if (gui_mouse_grabbed (dpyinfo)
	  && !EQ (track_mouse, Qdropping)
	  && !EQ (track_mouse, Qdrag_source))
	/* Pick the last mouse frame if dropping.  */
	f1 = dpyinfo->last_mouse_frame;
      else
	/* Otherwise, pick the last mouse motion frame.  */
	f1 = dpyinfo->last_mouse_motion_frame;

      if (!f1 && (FRAME_X_P (SELECTED_FRAME ())
		  && (FRAME_DISPLAY_INFO (SELECTED_FRAME ())
		      == dpyinfo)))
	f1 = SELECTED_FRAME ();

      if (!f1 || (!FRAME_X_P (f1) && (insist > 0)))
	FOR_EACH_FRAME (tail, frame)
	  if (FRAME_X_P (XFRAME (frame))
	      && (FRAME_DISPLAY_INFO (XFRAME (frame))
		  == dpyinfo)
	      && !FRAME_TOOLTIP_P (XFRAME (frame)))
	    f1 = XFRAME (frame);

      if (f1 && FRAME_TOOLTIP_P (f1))
	f1 = NULL;

      if (f1 && FRAME_X_P (f1) && FRAME_X_WINDOW (f1))
	{
	  if (!x_query_pointer (dpyinfo->display, FRAME_X_WINDOW (f1),
				&dummy, &dummy, &root_x, &root_y,
				&win_x, &win_y, &mask))
	    /* The pointer is out of the screen.  */
	    return;

	  remember_mouse_glyph (f1, win_x, win_y,
				&dpyinfo->last_mouse_glyph);
	  dpyinfo->last_mouse_glyph_frame = f1;

	  *bar_window = Qnil;
	  *part = scroll_bar_nowhere;

	  /* If track-mouse is `drag-source' and the mouse pointer is
	     certain to not be actually under the chosen frame, return
	     NULL in FP.  */
	  if (EQ (track_mouse, Qdrag_source)
	      && (win_x < 0 || win_y < 0
		  || win_x >= FRAME_PIXEL_WIDTH (f1)
		  || win_y >= FRAME_PIXEL_HEIGHT (f1)))
	    *fp = NULL;
	  else
	    *fp = f1;

	  *timestamp = dpyinfo->last_mouse_movement_time;
	  XSETINT (*x, win_x);
	  XSETINT (*y, win_y);
	}
    }
  else
    {
      /* This means Emacs should only report the coordinates of the
	 last mouse motion.  */

      if (dpyinfo->last_mouse_motion_frame)
	{
	  *fp = dpyinfo->last_mouse_motion_frame;
	  *timestamp = dpyinfo->last_mouse_movement_time;
	  *x = make_fixnum (dpyinfo->last_mouse_motion_x);
	  *y = make_fixnum (dpyinfo->last_mouse_motion_y);
	  *bar_window = Qnil;
	  *part = scroll_bar_nowhere;

	  FOR_EACH_FRAME (tail, frame)
	    {
	      if (FRAME_X_P (XFRAME (frame))
		  && (FRAME_DISPLAY_INFO (XFRAME (frame))
		      == dpyinfo))
		XFRAME (frame)->mouse_moved = false;
	    }

	  dpyinfo->last_mouse_motion_frame->mouse_moved = false;
	}
    }
}

/* Return the current position of the mouse.
   *FP should be a frame which indicates which display to ask about.

   If the mouse movement started in a scroll bar, set *FP, *BAR_WINDOW,
   and *PART to the frame, window, and scroll bar part that the mouse
   is over.  Set *X and *Y to the portion and whole of the mouse's
   position on the scroll bar.

   If the mouse movement started elsewhere, set *FP to the frame the
   mouse is on, *BAR_WINDOW to nil, and *X and *Y to the character cell
   the mouse is over.

   Set *TIMESTAMP to the server time-stamp for the time at which the mouse
   was at this position.

   Don't store anything if we don't have a valid set of values to report.

   This clears the mouse_moved flag, so we can wait for the next mouse
   movement.  */

static void
XTmouse_position (struct frame **fp, int insist, Lisp_Object *bar_window,
		  enum scroll_bar_part *part, Lisp_Object *x, Lisp_Object *y,
		  Time *timestamp)
{
  struct frame *f1, *maybe_tooltip;
  struct x_display_info *dpyinfo;
  bool unrelated_tooltip;

  dpyinfo = FRAME_DISPLAY_INFO (*fp);

  if (!NILP (Vx_use_fast_mouse_position))
    {
      /* The user says that Emacs is running over the network, and a
	 fast approximation of `mouse-position' should be used.

	 Depending on what the value of `x-use-fast-mouse-position'
	 is, do one of two things: only perform the XQueryPointer to
	 obtain the coordinates from the last mouse frame, or only
	 return the last mouse motion frame and the
	 last_mouse_motion_x and Y.  */

      x_fast_mouse_position (fp, insist, bar_window, part, x,
			     y, timestamp);
      return;
    }

  block_input ();

  if (dpyinfo->last_mouse_scroll_bar && insist == 0)
    {
      struct scroll_bar *bar = dpyinfo->last_mouse_scroll_bar;

      if (bar->horizontal)
	x_horizontal_scroll_bar_report_motion (fp, bar_window, part, x, y, timestamp);
      else
	x_scroll_bar_report_motion (fp, bar_window, part, x, y, timestamp);
    }
  else
    {
      Window root;
      int root_x, root_y;

      Window dummy_window;
      int dummy;

      Lisp_Object frame, tail;

      /* Clear the mouse-moved flag for every frame on this display.  */
      FOR_EACH_FRAME (tail, frame)
	if (FRAME_X_P (XFRAME (frame))
            && FRAME_X_DISPLAY (XFRAME (frame)) == FRAME_X_DISPLAY (*fp))
	  XFRAME (frame)->mouse_moved = false;

      dpyinfo->last_mouse_scroll_bar = NULL;

      /* Figure out which root window we're on.  */
      x_query_pointer (FRAME_X_DISPLAY (*fp),
		       DefaultRootWindow (FRAME_X_DISPLAY (*fp)),
		       /* The root window which contains the pointer.  */
		       &root,
		       /* Trash which we can't trust if the pointer is on
			  a different screen.  */
		       &dummy_window,
		       /* The position on that root window.  */
		       &root_x, &root_y,
		       /* More trash we can't trust.  */
		       &dummy, &dummy,
		       /* Modifier keys and pointer buttons, about which
			  we don't care.  */
		       (unsigned int *) &dummy);

      /* Now we have a position on the root; find the innermost window
	 containing the pointer.  */
      {
	Window win, child;
#ifdef USE_GTK
	Window first_win = 0;
#endif
	int win_x, win_y;
	int parent_x, parent_y;

	win = root;
	parent_x = root_x;
	parent_y = root_y;

	/* XTranslateCoordinates can get errors if the window
	   structure is changing at the same time this function
	   is running.  So at least we must not crash from them.  */

	x_catch_errors (FRAME_X_DISPLAY (*fp));

	if (gui_mouse_grabbed (dpyinfo) && !EQ (track_mouse, Qdropping)
	    && !EQ (track_mouse, Qdrag_source))
	  {
	    /* If mouse was grabbed on a frame, give coords for that frame
	       even if the mouse is now outside it.  */
	    XTranslateCoordinates (FRAME_X_DISPLAY (*fp),
				   /* From-window.  */
				   root,
				   /* To-window.  */
				   FRAME_X_WINDOW (dpyinfo->last_mouse_frame),
				   /* From-position, to-position.  */
				   root_x, root_y, &win_x, &win_y,
				   /* Child of win.  */
				   &child);
	    f1 = dpyinfo->last_mouse_frame;
	  }
	else
	  {
	    while (true)
	      {
		XTranslateCoordinates (FRAME_X_DISPLAY (*fp),
				       /* From-window, to-window.  */
				       root, win,
				       /* From-position, to-position.  */
				       root_x, root_y, &win_x, &win_y,
				       /* Child of win.  */
				       &child);

		/* If CHILD is a tooltip frame, look below it if
		   track-mouse is drag-source.  */
		if (child != None
		    && (EQ (track_mouse, Qdrag_source)
			|| EQ (track_mouse, Qdropping)))
		  {
		    maybe_tooltip = x_tooltip_window_to_frame (dpyinfo, child,
							       &unrelated_tooltip);

		    if (maybe_tooltip || unrelated_tooltip)
		      child = x_get_window_below (dpyinfo->display, child,
						  parent_x, parent_y, &win_x,
						  &win_y);
		  }

		if (child == None || child == win)
		  {
#ifdef USE_GTK
		    /* On GTK we have not inspected WIN yet.  If it has
		       a frame and that frame has a parent, use it.  */
		    struct frame *f = x_window_to_frame (dpyinfo, win);

		    if (f && FRAME_PARENT_FRAME (f))
		      first_win = win;
#endif
		    break;
		  }
#ifdef USE_GTK
		/* We don't want to know the innermost window.  We
		   want the edit window.  For non-Gtk+ the innermost
		   window is the edit window.  For Gtk+ it might not
		   be.  It might be the tool bar for example.  */
		if (x_window_to_frame (dpyinfo, win))
		  /* But don't hurry.  We might find a child frame
		     beneath.  */
		  first_win = win;
#endif
		win = child;
		parent_x = win_x;
		parent_y = win_y;
	      }

#ifdef USE_GTK
	    if (first_win)
	      win = first_win;
#endif

	    /* Now we know that:
	       win is the innermost window containing the pointer
	       (XTC says it has no child containing the pointer),
	       win_x and win_y are the pointer's position in it
	       (XTC did this the last time through), and
	       parent_x and parent_y are the pointer's position in win's parent.
	       (They are what win_x and win_y were when win was child.
	       If win is the root window, it has no parent, and
	       parent_{x,y} are invalid, but that's okay, because we'll
	       never use them in that case.)  */

#ifdef USE_GTK
	    /* We don't want to know the innermost window.  We
	       want the edit window.  */
	    f1 = x_window_to_frame (dpyinfo, win);
#else
	    /* Is win one of our frames?  */
	    f1 = x_any_window_to_frame (dpyinfo, win);
#endif

#ifdef USE_X_TOOLKIT
	    /* If we end up with the menu bar window, say it's not
	       on the frame.  */
	    if (f1 != NULL
		&& f1->output_data.x->menubar_widget
		&& win == XtWindow (f1->output_data.x->menubar_widget))
	      f1 = NULL;
#endif /* USE_X_TOOLKIT */
	  }

	/* Set last user time to avoid confusing some window managers
	   about the tooltip displayed during drag-and-drop.  */

	if ((EQ (track_mouse, Qdrag_source)
	     || EQ (track_mouse, Qdropping))
	    && (dpyinfo->last_user_time
		< dpyinfo->last_mouse_movement_time))
	  x_display_set_last_user_time (dpyinfo,
					dpyinfo->last_mouse_movement_time,
					dpyinfo->last_mouse_movement_time_send_event,
					true);

	if ((!f1 || FRAME_TOOLTIP_P (f1))
	    && (EQ (track_mouse, Qdropping)
		|| EQ (track_mouse, Qdrag_source))
	    && gui_mouse_grabbed (dpyinfo))
	  {
	    /* When dropping then if we didn't get a frame or only a
	       tooltip frame and the mouse was grabbed on a frame,
	       give coords for that frame even if the mouse is now
	       outside it.  */
	    XTranslateCoordinates (FRAME_X_DISPLAY (*fp),
				   /* From-window.  */
				   root,
				   /* To-window.  */
				   FRAME_X_WINDOW (dpyinfo->last_mouse_frame),
				   /* From-position, to-position.  */
				   root_x, root_y, &win_x, &win_y,
				   /* Child of win.  */
				   &child);

	    if (!EQ (track_mouse, Qdrag_source)
		/* Don't let tooltips interfere.  */
		|| (f1 && FRAME_TOOLTIP_P (f1)))
	      f1 = dpyinfo->last_mouse_frame;
	    else
	      {
		/* Don't set FP but do set WIN_X and WIN_Y in this
		   case, so make_lispy_movement knows which
		   coordinates to report.  */
		*bar_window = Qnil;
		*part = 0;
		*fp = NULL;
		XSETINT (*x, win_x);
		XSETINT (*y, win_y);
		*timestamp = dpyinfo->last_mouse_movement_time;
	      }
	  }
	else if (f1 && FRAME_TOOLTIP_P (f1))
	  f1 = NULL;

	if (x_had_errors_p (dpyinfo->display))
	  f1 = NULL;

	x_uncatch_errors_after_check ();

	/* If not, is it one of our scroll bars?  */
	if (!f1)
	  {
	    struct scroll_bar *bar;

            bar = x_window_to_scroll_bar (dpyinfo->display, win, 2);

	    if (bar)
	      {
		f1 = XFRAME (WINDOW_FRAME (XWINDOW (bar->window)));
		win_x = parent_x;
		win_y = parent_y;
	      }
	  }

	if (!f1 && insist > 0)
	  f1 = SELECTED_FRAME ();

	if (f1 && FRAME_X_P (f1))
	  {
	    /* Ok, we found a frame.  Store all the values.
	       last_mouse_glyph is a rectangle used to reduce the
	       generation of mouse events.  To not miss any motion
	       events, we must divide the frame into rectangles of the
	       size of the smallest character that could be displayed
	       on it, i.e. into the same rectangles that matrices on
	       the frame are divided into.  */

	    dpyinfo = FRAME_DISPLAY_INFO (f1);
	    remember_mouse_glyph (f1, win_x, win_y, &dpyinfo->last_mouse_glyph);
	    dpyinfo->last_mouse_glyph_frame = f1;

	    *bar_window = Qnil;
	    *part = 0;
	    *fp = f1;
	    XSETINT (*x, win_x);
	    XSETINT (*y, win_y);
	    *timestamp = dpyinfo->last_mouse_movement_time;
	  }
      }
    }

  unblock_input ();
}


\f
/***********************************************************************
			       Scroll bars
 ***********************************************************************/

/* Scroll bar support.  */

#if defined HAVE_XINPUT2

/* Select for input extension events used by scroll bars.  This will
   result in the corresponding core events not being generated for
   SCROLL_BAR.  */

MAYBE_UNUSED static void
xi_select_scroll_bar_events (struct x_display_info *dpyinfo,
			     Window scroll_bar)
{
  XIEventMask mask;
  unsigned char *m;
  ptrdiff_t length;

  length = XIMaskLen (XI_LASTEVENT);
  mask.mask = m = alloca (length);
  memset (m, 0, length);
  mask.mask_len = length;

  mask.deviceid = XIAllMasterDevices;
  XISetMask (m, XI_ButtonPress);
  XISetMask (m, XI_ButtonRelease);
  XISetMask (m, XI_Motion);
  XISetMask (m, XI_Enter);
  XISetMask (m, XI_Leave);

  XISelectEvents (dpyinfo->display, scroll_bar, &mask, 1);
}

#endif

/* Given an X window ID and a DISPLAY, find the struct scroll_bar which
   manages it.
   This can be called in GC, so we have to make sure to strip off mark
   bits.  */

static struct scroll_bar *
x_window_to_scroll_bar (Display *display, Window window_id, int type)
{
  Lisp_Object tail, frame;

#if defined (USE_GTK) && !defined (HAVE_GTK3) && defined (USE_TOOLKIT_SCROLL_BARS)
  window_id = (Window) xg_get_scroll_id_for_window (display, window_id);
#endif /* USE_GTK && !HAVE_GTK3  && USE_TOOLKIT_SCROLL_BARS */

  FOR_EACH_FRAME (tail, frame)
    {
      Lisp_Object bar, condemned;

      if (! FRAME_X_P (XFRAME (frame)))
        continue;

      /* Scan this frame's scroll bar list for a scroll bar with the
         right window ID.  */
      condemned = FRAME_CONDEMNED_SCROLL_BARS (XFRAME (frame));
      for (bar = FRAME_SCROLL_BARS (XFRAME (frame));
	   /* This trick allows us to search both the ordinary and
              condemned scroll bar lists with one loop.  */
	   ! NILP (bar) || (bar = condemned,
			       condemned = Qnil,
			       ! NILP (bar));
	   bar = XSCROLL_BAR (bar)->next)
	if (XSCROLL_BAR (bar)->x_window == window_id
            && FRAME_X_DISPLAY (XFRAME (frame)) == display
	    && (type == 2
		|| (type == 1 && XSCROLL_BAR (bar)->horizontal)
		|| (type == 0 && !XSCROLL_BAR (bar)->horizontal)))
	  return XSCROLL_BAR (bar);
    }

  return NULL;
}


#if defined USE_LUCID

/* Return the Lucid menu bar WINDOW is part of.  Return null
   if WINDOW is not part of a menu bar.  */

static Widget
x_window_to_menu_bar (Window window)
{
  Lisp_Object tail, frame;

  FOR_EACH_FRAME (tail, frame)
    if (FRAME_X_P (XFRAME (frame)))
      {
	Widget menu_bar = XFRAME (frame)->output_data.x->menubar_widget;

	if (menu_bar && xlwmenu_window_p (menu_bar, window))
	  return menu_bar;
      }
  return NULL;
}

#endif /* USE_LUCID */

\f
/************************************************************************
			 Toolkit scroll bars
 ************************************************************************/

#ifdef USE_TOOLKIT_SCROLL_BARS

static void x_send_scroll_bar_event (Lisp_Object, enum scroll_bar_part,
                                     int, int, bool);

/* Lisp window being scrolled.  Set when starting to interact with
   a toolkit scroll bar, reset to nil when ending the interaction.  */

static Lisp_Object window_being_scrolled;

static Time
x_get_last_toolkit_time (struct x_display_info *dpyinfo)
{
#ifdef USE_X_TOOLKIT
  return XtLastTimestampProcessed (dpyinfo->display);
#else
  return dpyinfo->last_user_time;
#endif
}

#ifndef USE_GTK
/* Id of action hook installed for scroll bars and horizontal scroll
   bars.  */

static XtActionHookId action_hook_id;
static XtActionHookId horizontal_action_hook_id;

/* Whether this is an Xaw with arrow-scrollbars.  This should imply
   that movements of 1/20 of the screen size are mapped to up/down.  */

static Boolean xaw3d_arrow_scroll;

/* Whether the drag scrolling maintains the mouse at the top of the
   thumb.  If not, resizing the thumb needs to be done more carefully
   to avoid jerkiness.  */

static Boolean xaw3d_pick_top;

/* Action hook installed via XtAppAddActionHook when toolkit scroll
   bars are used..  The hook is responsible for detecting when
   the user ends an interaction with the scroll bar, and generates
   a `end-scroll' SCROLL_BAR_CLICK_EVENT' event if so.  */

static void
xt_action_hook (Widget widget, XtPointer client_data, String action_name,
		XEvent *event, String *params, Cardinal *num_params)
{
  bool scroll_bar_p;
  const char *end_action;

#ifdef USE_MOTIF
  scroll_bar_p = XmIsScrollBar (widget);
  end_action = "Release";
#else /* !USE_MOTIF i.e. use Xaw */
  scroll_bar_p = XtIsSubclass (widget, scrollbarWidgetClass);
  end_action = "EndScroll";
#endif /* USE_MOTIF */

  if (scroll_bar_p
      && strcmp (action_name, end_action) == 0
      && WINDOWP (window_being_scrolled))
    {
      struct window *w;
      struct scroll_bar *bar;

      x_send_scroll_bar_event (window_being_scrolled,
			       scroll_bar_end_scroll, 0, 0, false);
      w = XWINDOW (window_being_scrolled);
      bar = XSCROLL_BAR (w->vertical_scroll_bar);

      if (bar->dragging != -1)
	{
	  bar->dragging = -1;
	  /* The thumb size is incorrect while dragging: fix it.  */
	  set_vertical_scroll_bar (w);
	}
      window_being_scrolled = Qnil;
#if defined (USE_LUCID)
      bar->last_seen_part = scroll_bar_nowhere;
#endif
      /* Xt timeouts no longer needed.  */
      toolkit_scroll_bar_interaction = false;
    }
}


static void
xt_horizontal_action_hook (Widget widget, XtPointer client_data, String action_name,
			   XEvent *event, String *params, Cardinal *num_params)
{
  bool scroll_bar_p;
  const char *end_action;

#ifdef USE_MOTIF
  scroll_bar_p = XmIsScrollBar (widget);
  end_action = "Release";
#else /* !USE_MOTIF i.e. use Xaw */
  scroll_bar_p = XtIsSubclass (widget, scrollbarWidgetClass);
  end_action = "EndScroll";
#endif /* USE_MOTIF */

  if (scroll_bar_p
      && strcmp (action_name, end_action) == 0
      && WINDOWP (window_being_scrolled))
    {
      struct window *w;
      struct scroll_bar *bar;

      x_send_scroll_bar_event (window_being_scrolled,
			       scroll_bar_end_scroll, 0, 0, true);
      w = XWINDOW (window_being_scrolled);
      if (!NILP (w->horizontal_scroll_bar))
	{
	  bar = XSCROLL_BAR (w->horizontal_scroll_bar);
	  if (bar->dragging != -1)
	    {
	      bar->dragging = -1;
	      /* The thumb size is incorrect while dragging: fix it.  */
	      set_horizontal_scroll_bar (w);
	    }
	  window_being_scrolled = Qnil;
#if defined (USE_LUCID)
	  bar->last_seen_part = scroll_bar_nowhere;
#endif
	  /* Xt timeouts no longer needed.  */
	  toolkit_scroll_bar_interaction = false;
	}
    }
}
#endif /* not USE_GTK */

/* Protect WINDOW from garbage collection until a matching scroll bar
   message is received.  Return whether or not protection
   succeeded.  */
static bool
x_protect_window_for_callback (struct x_display_info *dpyinfo,
			       Lisp_Object window)
{
  if (dpyinfo->n_protected_windows + 1
      >= dpyinfo->protected_windows_max)
    return false;

  dpyinfo->protected_windows[dpyinfo->n_protected_windows++]
    = window;
  return true;
}

static Lisp_Object
x_unprotect_window_for_callback (struct x_display_info *dpyinfo)
{
  Lisp_Object window;

  if (!dpyinfo->n_protected_windows)
    return Qnil;

  window = dpyinfo->protected_windows[0];

  dpyinfo->n_protected_windows--;

  if (dpyinfo->n_protected_windows)
    memmove (dpyinfo->protected_windows, &dpyinfo->protected_windows[1],
	     sizeof (Lisp_Object) * dpyinfo->n_protected_windows);

  return window;
}

/* Send a client message with message type Xatom_Scrollbar for a
   scroll action to the frame of WINDOW.  PART is a value identifying
   the part of the scroll bar that was clicked on.  PORTION is the
   amount to scroll of a whole of WHOLE.  */

static void
x_send_scroll_bar_event (Lisp_Object window, enum scroll_bar_part part,
			 int portion, int whole, bool horizontal)
{
  XEvent event;
  XClientMessageEvent *ev = &event.xclient;
  struct window *w = XWINDOW (window);
  struct frame *f = XFRAME (w->frame);
  verify (INTPTR_WIDTH <= 64);

  /* Don't do anything if too many scroll bar events have been
     sent but not received.  */
  if (!x_protect_window_for_callback (FRAME_DISPLAY_INFO (f), window))
    return;

  block_input ();
  /* Construct a ClientMessage event to send to the frame.  */
  ev->type = ClientMessage;
  ev->message_type = (horizontal
		      ? FRAME_DISPLAY_INFO (f)->Xatom_Horizontal_Scrollbar
		      : FRAME_DISPLAY_INFO (f)->Xatom_Scrollbar);
  ev->display = FRAME_X_DISPLAY (f);
  ev->window = FRAME_X_WINDOW (f);
  ev->format = 32;

  /* These messages formerly contained a pointer to the window, but
     now that information is kept internally.  The following two
     fields are thus zero.  */
  ev->data.l[0] = 0;
  ev->data.l[1] = 0;
  ev->data.l[2] = part;
  ev->data.l[3] = portion;
  ev->data.l[4] = whole;

  /* Make Xt timeouts work while the scroll bar is active.  */
#ifdef USE_X_TOOLKIT
  toolkit_scroll_bar_interaction = true;
  x_activate_timeout_atimer ();
#endif

  /* Setting the event mask to zero means that the message will
     be sent to the client that created the window, and if that
     window no longer exists, no event will be sent.  */
  XSendEvent (FRAME_X_DISPLAY (f), FRAME_X_WINDOW (f), False,
	      NoEventMask, &event);
  unblock_input ();
}


/* Transform a scroll bar ClientMessage EVENT to an Emacs input event
   in *IEVENT.  */

static void
x_scroll_bar_to_input_event (struct x_display_info *dpyinfo,
			     const XEvent *event,
			     struct input_event *ievent)
{
  Lisp_Object window;

  /* Every time a scroll bar ClientMessage event is sent, the window
     is pushed onto a queue that is traced for garbage collection.
     Every time we need a window for a read scroll bar event, we
     simply read from the other side of the queue.  */
  window = x_unprotect_window_for_callback (dpyinfo);

  if (NILP (window))
    {
      /* This means we are getting extra scroll bar events for some
	 reason, and shouldn't be possible in practice.  */
      EVENT_INIT (*ievent);
      return;
    }

  ievent->kind = SCROLL_BAR_CLICK_EVENT;
  ievent->frame_or_window = window;
  ievent->arg = Qnil;
  ievent->timestamp = x_get_last_toolkit_time (dpyinfo);
  ievent->code = 0;
  ievent->part = event->xclient.data.l[2];
  ievent->x = make_fixnum (event->xclient.data.l[3]);
  ievent->y = make_fixnum (event->xclient.data.l[4]);
  ievent->modifiers = 0;
}

/* Transform a horizontal scroll bar ClientMessage EVENT to an Emacs
   input event in *IEVENT.  */

static void
x_horizontal_scroll_bar_to_input_event (struct x_display_info *dpyinfo,
					const XEvent *event,
					struct input_event *ievent)
{
  Lisp_Object window;

  /* Every time a scroll bar ClientMessage event is sent, the window
     is pushed onto a queue that is traced for garbage collection.
     Every time we need a window for a read scroll bar event, we
     simply read from the other side of the queue.  */
  window = x_unprotect_window_for_callback (dpyinfo);

  if (NILP (window))
    {
      /* This means we are getting extra scroll bar events for some
	 reason, and shouldn't be possible in practice.  */
      EVENT_INIT (*ievent);
      return;
    }

  ievent->kind = HORIZONTAL_SCROLL_BAR_CLICK_EVENT;
  ievent->frame_or_window = window;
  ievent->arg = Qnil;
  ievent->timestamp = x_get_last_toolkit_time (dpyinfo);
  ievent->code = 0;
  ievent->part = event->xclient.data.l[2];
  ievent->x = make_fixnum (event->xclient.data.l[3]);
  ievent->y = make_fixnum (event->xclient.data.l[4]);
  ievent->modifiers = 0;
}


#ifdef USE_MOTIF

/* Minimum and maximum values used for Motif scroll bars.  */

#define XM_SB_MAX 10000000

/* Scroll bar callback for Motif scroll bars.  WIDGET is the scroll
   bar widget.  CLIENT_DATA is a pointer to the scroll_bar structure.
   CALL_DATA is a pointer to a XmScrollBarCallbackStruct.  */

static void
xm_scroll_callback (Widget widget, XtPointer client_data, XtPointer call_data)
{
  struct scroll_bar *bar = client_data;
  XmScrollBarCallbackStruct *cs = call_data;
  enum scroll_bar_part part = scroll_bar_nowhere;
  bool horizontal = bar->horizontal;
  int whole = 0, portion = 0;

  switch (cs->reason)
    {
    case XmCR_DECREMENT:
      bar->dragging = -1;
      part = horizontal ? scroll_bar_left_arrow : scroll_bar_up_arrow;
      break;

    case XmCR_INCREMENT:
      bar->dragging = -1;
      part = horizontal ? scroll_bar_right_arrow : scroll_bar_down_arrow;
      break;

    case XmCR_PAGE_DECREMENT:
      bar->dragging = -1;
      part = horizontal ? scroll_bar_before_handle : scroll_bar_above_handle;
      break;

    case XmCR_PAGE_INCREMENT:
      bar->dragging = -1;
      part = horizontal ? scroll_bar_after_handle : scroll_bar_below_handle;
      break;

    case XmCR_TO_TOP:
      bar->dragging = -1;
      part = horizontal ? scroll_bar_to_leftmost : scroll_bar_to_top;
      break;

    case XmCR_TO_BOTTOM:
      bar->dragging = -1;
      part = horizontal ? scroll_bar_to_rightmost : scroll_bar_to_bottom;
      break;

    case XmCR_DRAG:
      {
	int slider_size;

	block_input ();
	XtVaGetValues (widget, XmNsliderSize, &slider_size, NULL);
	unblock_input ();

	if (horizontal)
	  {
	    portion = bar->whole * ((float)cs->value / XM_SB_MAX);
	    whole = bar->whole * ((float)(XM_SB_MAX - slider_size) / XM_SB_MAX);
	    portion = min (portion, whole);
	    part = scroll_bar_horizontal_handle;
	  }
	else
	  {
	    whole = XM_SB_MAX - slider_size;
	    portion = min (cs->value, whole);
	    part = scroll_bar_handle;
	  }

	bar->dragging = cs->value;
      }
      break;

    case XmCR_VALUE_CHANGED:
      break;
    };

  if (part != scroll_bar_nowhere)
    {
      window_being_scrolled = bar->window;
      x_send_scroll_bar_event (bar->window, part, portion, whole,
			       bar->horizontal);
    }
}

#elif defined USE_GTK

/* Scroll bar callback for GTK scroll bars.  WIDGET is the scroll
   bar widget.  DATA is a pointer to the scroll_bar structure. */

static gboolean
xg_scroll_callback (GtkRange *range, GtkScrollType scroll,
                    gdouble value, gpointer user_data)
{
  int whole, portion;
  struct scroll_bar *bar;
  enum scroll_bar_part part;
  GtkAdjustment *adj;
  struct frame *f;
  guint32 time;
  struct x_display_info *dpyinfo;

  if (xg_ignore_gtk_scrollbar) return false;

  whole = 0;
  portion = 0;
  bar = user_data;
  part = scroll_bar_nowhere;
  adj = GTK_ADJUSTMENT (gtk_range_get_adjustment (range));
  f = g_object_get_data (G_OBJECT (range), XG_FRAME_DATA);
  time = gtk_get_current_event_time ();
  dpyinfo = FRAME_DISPLAY_INFO (f);

  if (time != GDK_CURRENT_TIME)
    x_display_set_last_user_time (dpyinfo, time, true,
				  true);

  switch (scroll)
    {
    case GTK_SCROLL_JUMP:
      /* Buttons 1 2 or 3 must be grabbed.  */
      if (FRAME_DISPLAY_INFO (f)->grabbed != 0
          && FRAME_DISPLAY_INFO (f)->grabbed < (1 << 4))
        {
	  if (bar->horizontal)
	    {
	      part = scroll_bar_horizontal_handle;
	      whole = (int)(gtk_adjustment_get_upper (adj) -
			    gtk_adjustment_get_page_size (adj));
	      portion = min ((int)value, whole);
	      bar->dragging = portion;
	    }
	  else
	    {
	      part = scroll_bar_handle;
	      whole = gtk_adjustment_get_upper (adj) -
		gtk_adjustment_get_page_size (adj);
	      portion = min ((int)value, whole);
	      bar->dragging = portion;
	    }
	}
      break;
    case GTK_SCROLL_STEP_BACKWARD:
      part = (bar->horizontal
	      ? scroll_bar_left_arrow : scroll_bar_up_arrow);
      bar->dragging = -1;
      break;
    case GTK_SCROLL_STEP_FORWARD:
      part = (bar->horizontal
	      ? scroll_bar_right_arrow : scroll_bar_down_arrow);
      bar->dragging = -1;
      break;
    case GTK_SCROLL_PAGE_BACKWARD:
      part = (bar->horizontal
	      ? scroll_bar_before_handle : scroll_bar_above_handle);
      bar->dragging = -1;
      break;
    case GTK_SCROLL_PAGE_FORWARD:
      part = (bar->horizontal
	      ? scroll_bar_after_handle : scroll_bar_below_handle);
      bar->dragging = -1;
      break;
    default:
      break;
    }

  if (part != scroll_bar_nowhere)
    {
      window_being_scrolled = bar->window;
      x_send_scroll_bar_event (bar->window, part, portion, whole,
			       bar->horizontal);
    }

  return false;
}

/* Callback for button release. Sets dragging to -1 when dragging is done.  */

static gboolean
xg_end_scroll_callback (GtkWidget *widget,
                        GdkEventButton *event,
                        gpointer user_data)
{
  struct scroll_bar *bar;

  bar = user_data;
  bar->dragging = -1;

  if (WINDOWP (window_being_scrolled))
    {
      x_send_scroll_bar_event (window_being_scrolled,
                               scroll_bar_end_scroll, 0, 0, bar->horizontal);
      window_being_scrolled = Qnil;
    }

  return false;
}


#else /* not USE_GTK and not USE_MOTIF */

/* Xaw scroll bar callback.  Invoked when the thumb is dragged.
   WIDGET is the scroll bar widget.  CLIENT_DATA is a pointer to the
   scroll bar struct.  CALL_DATA is a pointer to a float saying where
   the thumb is.  */

static void
xaw_jump_callback (Widget widget, XtPointer client_data, XtPointer call_data)
{
  struct scroll_bar *bar = client_data;
  float *top_addr = call_data;
  float top = *top_addr;
  float shown;
  int whole, portion, height, width;
  enum scroll_bar_part part;
  bool horizontal = bar->horizontal;

  if (horizontal)
    {
      /* Get the size of the thumb, a value between 0 and 1.  */
      block_input ();
      XtVaGetValues (widget, XtNshown, &shown, XtNwidth, &width, NULL);
      unblock_input ();

      if (shown < 1)
	{
	  whole = bar->whole - (shown * bar->whole);
	  portion = min (top * bar->whole, whole);
	}
      else
	{
	  whole = bar->whole;
	  portion = 0;
	}

      part = scroll_bar_horizontal_handle;
    }
  else
    {
      /* Get the size of the thumb, a value between 0 and 1.  */
      block_input ();
      XtVaGetValues (widget, XtNshown, &shown, XtNheight, &height, NULL);
      unblock_input ();

      whole = 10000000;
      portion = shown < 1 ? top * whole : 0;

      if (shown < 1 && (eabs (top + shown - 1) < 1.0f / height))
	/* Some derivatives of Xaw refuse to shrink the thumb when you reach
	   the bottom, so we force the scrolling whenever we see that we're
	   too close to the bottom (in x_set_toolkit_scroll_bar_thumb
	   we try to ensure that we always stay two pixels away from the
	   bottom).  */
	part = scroll_bar_down_arrow;
      else
	part = scroll_bar_handle;
    }

  window_being_scrolled = bar->window;
  bar->dragging = portion;
  bar->last_seen_part = part;
  x_send_scroll_bar_event (bar->window, part, portion, whole, bar->horizontal);
}


/* Xaw scroll bar callback.  Invoked for incremental scrolling.,
   i.e. line or page up or down.  WIDGET is the Xaw scroll bar
   widget.  CLIENT_DATA is a pointer to the scroll_bar structure for
   the scroll bar.  CALL_DATA is an integer specifying the action that
   has taken place.  Its magnitude is in the range 0..height of the
   scroll bar.  Negative values mean scroll towards buffer start.
   Values < height of scroll bar mean line-wise movement.  */

static void
xaw_scroll_callback (Widget widget, XtPointer client_data, XtPointer call_data)
{
  struct scroll_bar *bar = client_data;
  /* The position really is stored cast to a pointer.  */
  int position = (intptr_t) call_data;
  Dimension height, width;
  enum scroll_bar_part part;

  if (bar->horizontal)
    {
      /* Get the width of the scroll bar.  */
      block_input ();
      XtVaGetValues (widget, XtNwidth, &width, NULL);
      unblock_input ();

      if (eabs (position) >= width)
	part = (position < 0) ? scroll_bar_before_handle : scroll_bar_after_handle;

      /* If Xaw3d was compiled with ARROW_SCROLLBAR,
	 it maps line-movement to call_data = max(5, height/20).  */
      else if (xaw3d_arrow_scroll && eabs (position) <= max (5, width / 20))
	part = (position < 0) ? scroll_bar_left_arrow : scroll_bar_right_arrow;
      else
	part = scroll_bar_move_ratio;

      window_being_scrolled = bar->window;
      bar->dragging = -1;
      bar->last_seen_part = part;
      x_send_scroll_bar_event (bar->window, part, position, width,
			       bar->horizontal);
    }
  else
    {

      /* Get the height of the scroll bar.  */
      block_input ();
      XtVaGetValues (widget, XtNheight, &height, NULL);
      unblock_input ();

      if (eabs (position) >= height)
	part = (position < 0) ? scroll_bar_above_handle : scroll_bar_below_handle;

      /* If Xaw3d was compiled with ARROW_SCROLLBAR,
	 it maps line-movement to call_data = max(5, height/20).  */
      else if (xaw3d_arrow_scroll && eabs (position) <= max (5, height / 20))
	part = (position < 0) ? scroll_bar_up_arrow : scroll_bar_down_arrow;
      else
	part = scroll_bar_move_ratio;

      window_being_scrolled = bar->window;
      bar->dragging = -1;
      bar->last_seen_part = part;
      x_send_scroll_bar_event (bar->window, part, position, height,
			       bar->horizontal);
    }
}

#endif /* not USE_GTK and not USE_MOTIF */

#define SCROLL_BAR_NAME "verticalScrollBar"
#define SCROLL_BAR_HORIZONTAL_NAME "horizontalScrollBar"

/* Create the widget for scroll bar BAR on frame F.  Record the widget
   and X window of the scroll bar in BAR.  */

#ifdef USE_GTK
static void
x_create_toolkit_scroll_bar (struct frame *f, struct scroll_bar *bar)
{
  const char *scroll_bar_name = SCROLL_BAR_NAME;

  block_input ();
  xg_create_scroll_bar (f, bar, G_CALLBACK (xg_scroll_callback),
                        G_CALLBACK (xg_end_scroll_callback),
                        scroll_bar_name);
  unblock_input ();
}

static void
x_create_horizontal_toolkit_scroll_bar (struct frame *f, struct scroll_bar *bar)
{
  const char *scroll_bar_name = SCROLL_BAR_HORIZONTAL_NAME;

  block_input ();
  xg_create_horizontal_scroll_bar (f, bar, G_CALLBACK (xg_scroll_callback),
				   G_CALLBACK (xg_end_scroll_callback),
				   scroll_bar_name);
  unblock_input ();
}

#else /* not USE_GTK */

static void
x_create_toolkit_scroll_bar (struct frame *f, struct scroll_bar *bar)
{
  Window xwindow;
  Widget widget;
  Arg av[20];
  int ac = 0;
  const char *scroll_bar_name = SCROLL_BAR_NAME;
  unsigned long pixel;

  block_input ();

#ifdef USE_MOTIF
  /* Set resources.  Create the widget.  */
  XtSetArg (av[ac], XtNmappedWhenManaged, False); ++ac;
  XtSetArg (av[ac], XmNminimum, 0); ++ac;
  XtSetArg (av[ac], XmNmaximum, XM_SB_MAX); ++ac;
  XtSetArg (av[ac], XmNorientation, XmVERTICAL); ++ac;
  XtSetArg (av[ac], XmNprocessingDirection, XmMAX_ON_BOTTOM), ++ac;
  XtSetArg (av[ac], XmNincrement, 1); ++ac;
  XtSetArg (av[ac], XmNpageIncrement, 1); ++ac;

  /* Note: "background" is the thumb color, and "trough" is the color behind
     everything. */
  pixel = f->output_data.x->scroll_bar_foreground_pixel;
  if (pixel != -1)
    {
      XtSetArg (av[ac], XmNbackground, pixel);
      ++ac;
    }

  pixel = f->output_data.x->scroll_bar_background_pixel;
  if (pixel != -1)
    {
      XtSetArg (av[ac], XmNtroughColor, pixel);
      ++ac;
    }

  widget = XmCreateScrollBar (f->output_data.x->edit_widget,
			      (char *) scroll_bar_name, av, ac);

  /* Add one callback for everything that can happen.  */
  XtAddCallback (widget, XmNdecrementCallback, xm_scroll_callback,
		 (XtPointer) bar);
  XtAddCallback (widget, XmNdragCallback, xm_scroll_callback,
		 (XtPointer) bar);
  XtAddCallback (widget, XmNincrementCallback, xm_scroll_callback,
		 (XtPointer) bar);
  XtAddCallback (widget, XmNpageDecrementCallback, xm_scroll_callback,
		 (XtPointer) bar);
  XtAddCallback (widget, XmNpageIncrementCallback, xm_scroll_callback,
		 (XtPointer) bar);
  XtAddCallback (widget, XmNtoBottomCallback, xm_scroll_callback,
		 (XtPointer) bar);
  XtAddCallback (widget, XmNtoTopCallback, xm_scroll_callback,
		 (XtPointer) bar);

  /* Realize the widget.  Only after that is the X window created.  */
  XtRealizeWidget (widget);

  /* Set the cursor to an arrow.  I didn't find a resource to do that.
     And I'm wondering why it hasn't an arrow cursor by default.  */
  XDefineCursor (XtDisplay (widget), XtWindow (widget),
                 f->output_data.x->nontext_cursor);

#ifdef HAVE_XINPUT2
  /* Ask for input extension button and motion events.  This lets us
     send the proper `wheel-up' or `wheel-down' events to Emacs.  */
  if (FRAME_DISPLAY_INFO (f)->supports_xi2)
    xi_select_scroll_bar_events (FRAME_DISPLAY_INFO (f),
				 XtWindow (widget));
#endif
#else /* !USE_MOTIF i.e. use Xaw */

  /* Set resources.  Create the widget.  The background of the
     Xaw3d scroll bar widget is a little bit light for my taste.
     We don't alter it here to let users change it according
     to their taste with `emacs*verticalScrollBar.background: xxx'.  */
  XtSetArg (av[ac], XtNmappedWhenManaged, False); ++ac;
  XtSetArg (av[ac], XtNorientation, XtorientVertical); ++ac;
  /* For smoother scrolling with Xaw3d   -sm */
  /* XtSetArg (av[ac], XtNpickTop, True); ++ac; */

  pixel = f->output_data.x->scroll_bar_foreground_pixel;
  if (pixel != -1)
    {
      XtSetArg (av[ac], XtNforeground, pixel);
      ++ac;
    }

  pixel = f->output_data.x->scroll_bar_background_pixel;
  if (pixel != -1)
    {
      XtSetArg (av[ac], XtNbackground, pixel);
      ++ac;
    }

  /* Top/bottom shadow colors.  */

  /* Allocate them, if necessary.  */
  if (f->output_data.x->scroll_bar_top_shadow_pixel == -1)
    {
      pixel = f->output_data.x->scroll_bar_background_pixel;
      if (pixel != -1)
        {
          if (!x_alloc_lighter_color (f, FRAME_X_DISPLAY (f),
                                      FRAME_X_COLORMAP (f),
                                      &pixel, 1.2, 0x8000))
            pixel = -1;
          f->output_data.x->scroll_bar_top_shadow_pixel = pixel;
        }
    }
  if (f->output_data.x->scroll_bar_bottom_shadow_pixel == -1)
    {
      pixel = f->output_data.x->scroll_bar_background_pixel;
      if (pixel != -1)
        {
          if (!x_alloc_lighter_color (f, FRAME_X_DISPLAY (f),
                                      FRAME_X_COLORMAP (f),
                                      &pixel, 0.6, 0x4000))
            pixel = -1;
          f->output_data.x->scroll_bar_bottom_shadow_pixel = pixel;
        }
    }

#ifdef XtNbeNiceToColormap
  /* Tell the toolkit about them.  */
  if (f->output_data.x->scroll_bar_top_shadow_pixel == -1
      || f->output_data.x->scroll_bar_bottom_shadow_pixel == -1)
    /* We tried to allocate a color for the top/bottom shadow, and
       failed, so tell Xaw3d to use dithering instead.   */
    /* But only if we have a small colormap.  Xaw3d can allocate nice
       colors itself.  */
    {
      XtSetArg (av[ac], (String) XtNbeNiceToColormap,
                DefaultDepthOfScreen (FRAME_X_SCREEN (f)) < 16);
      ++ac;
    }
  else
    /* Tell what colors Xaw3d should use for the top/bottom shadow, to
       be more consistent with other emacs 3d colors, and since Xaw3d is
       not good at dealing with allocation failure.  */
    {
      /* This tells Xaw3d to use real colors instead of dithering for
	 the shadows.  */
      XtSetArg (av[ac], (String) XtNbeNiceToColormap, False);
      ++ac;

      /* Specify the colors.  */
      pixel = f->output_data.x->scroll_bar_top_shadow_pixel;
      if (pixel != -1)
	{
	  XtSetArg (av[ac], (String) XtNtopShadowPixel, pixel);
	  ++ac;
	}
      pixel = f->output_data.x->scroll_bar_bottom_shadow_pixel;
      if (pixel != -1)
	{
	  XtSetArg (av[ac], (String) XtNbottomShadowPixel, pixel);
	  ++ac;
	}
    }
#endif

  widget = XtCreateWidget (scroll_bar_name, scrollbarWidgetClass,
			   f->output_data.x->edit_widget, av, ac);

  {
    char const *initial = "";
    char const *val = initial;
    XtVaGetValues (widget, XtNscrollVCursor, (XtPointer) &val,
#ifdef XtNarrowScrollbars
		   XtNarrowScrollbars, (XtPointer) &xaw3d_arrow_scroll,
#endif
		   XtNpickTop, (XtPointer) &xaw3d_pick_top, NULL);
    if (xaw3d_arrow_scroll || val == initial)
      {	/* ARROW_SCROLL */
	xaw3d_arrow_scroll = True;
	/* Isn't that just a personal preference ?   --Stef */
	XtVaSetValues (widget, XtNcursorName, "top_left_arrow", NULL);
      }
  }

  /* Define callbacks.  */
  XtAddCallback (widget, XtNjumpProc, xaw_jump_callback, (XtPointer) bar);
  XtAddCallback (widget, XtNscrollProc, xaw_scroll_callback,
		 (XtPointer) bar);

  /* Realize the widget.  Only after that is the X window created.  */
  XtRealizeWidget (widget);

#endif /* !USE_MOTIF */

  /* Install an action hook that lets us detect when the user
     finishes interacting with a scroll bar.  */
  if (action_hook_id == 0)
    action_hook_id = XtAppAddActionHook (Xt_app_con, xt_action_hook, 0);

  /* Remember X window and widget in the scroll bar vector.  */
  SET_SCROLL_BAR_X_WIDGET (bar, widget);
  xwindow = XtWindow (widget);
  bar->x_window = xwindow;
  bar->whole = 1;
  bar->horizontal = false;

  unblock_input ();
}

static void
x_create_horizontal_toolkit_scroll_bar (struct frame *f, struct scroll_bar *bar)
{
  Window xwindow;
  Widget widget;
  Arg av[20];
  int ac = 0;
  const char *scroll_bar_name = SCROLL_BAR_HORIZONTAL_NAME;
  unsigned long pixel;

  block_input ();

#ifdef USE_MOTIF
  /* Set resources.  Create the widget.  */
  XtSetArg (av[ac], XtNmappedWhenManaged, False); ++ac;
  XtSetArg (av[ac], XmNminimum, 0); ++ac;
  XtSetArg (av[ac], XmNmaximum, XM_SB_MAX); ++ac;
  XtSetArg (av[ac], XmNorientation, XmHORIZONTAL); ++ac;
  XtSetArg (av[ac], XmNprocessingDirection, XmMAX_ON_RIGHT), ++ac;
  XtSetArg (av[ac], XmNincrement, 1); ++ac;
  XtSetArg (av[ac], XmNpageIncrement, 1); ++ac;

  /* Note: "background" is the thumb color, and "trough" is the color behind
     everything. */
  pixel = f->output_data.x->scroll_bar_foreground_pixel;
  if (pixel != -1)
    {
      XtSetArg (av[ac], XmNbackground, pixel);
      ++ac;
    }

  pixel = f->output_data.x->scroll_bar_background_pixel;
  if (pixel != -1)
    {
      XtSetArg (av[ac], XmNtroughColor, pixel);
      ++ac;
    }

  widget = XmCreateScrollBar (f->output_data.x->edit_widget,
			      (char *) scroll_bar_name, av, ac);

  /* Add one callback for everything that can happen.  */
  XtAddCallback (widget, XmNdecrementCallback, xm_scroll_callback,
		 (XtPointer) bar);
  XtAddCallback (widget, XmNdragCallback, xm_scroll_callback,
		 (XtPointer) bar);
  XtAddCallback (widget, XmNincrementCallback, xm_scroll_callback,
		 (XtPointer) bar);
  XtAddCallback (widget, XmNpageDecrementCallback, xm_scroll_callback,
		 (XtPointer) bar);
  XtAddCallback (widget, XmNpageIncrementCallback, xm_scroll_callback,
		 (XtPointer) bar);
  XtAddCallback (widget, XmNtoBottomCallback, xm_scroll_callback,
		 (XtPointer) bar);
  XtAddCallback (widget, XmNtoTopCallback, xm_scroll_callback,
		 (XtPointer) bar);

  /* Realize the widget.  Only after that is the X window created.  */
  XtRealizeWidget (widget);

  /* Set the cursor to an arrow.  I didn't find a resource to do that.
     And I'm wondering why it hasn't an arrow cursor by default.  */
  XDefineCursor (XtDisplay (widget), XtWindow (widget),
                 f->output_data.x->nontext_cursor);

#ifdef HAVE_XINPUT2
  /* Ask for input extension button and motion events.  This lets us
     send the proper `wheel-up' or `wheel-down' events to Emacs.  */
  if (FRAME_DISPLAY_INFO (f)->supports_xi2)
    xi_select_scroll_bar_events (FRAME_DISPLAY_INFO (f),
				 XtWindow (widget));
#endif
#else /* !USE_MOTIF i.e. use Xaw */

  /* Set resources.  Create the widget.  The background of the
     Xaw3d scroll bar widget is a little bit light for my taste.
     We don't alter it here to let users change it according
     to their taste with `emacs*verticalScrollBar.background: xxx'.  */
  XtSetArg (av[ac], XtNmappedWhenManaged, False); ++ac;
  XtSetArg (av[ac], XtNorientation, XtorientHorizontal); ++ac;
  /* For smoother scrolling with Xaw3d   -sm */
  /* XtSetArg (av[ac], XtNpickTop, True); ++ac; */

  pixel = f->output_data.x->scroll_bar_foreground_pixel;
  if (pixel != -1)
    {
      XtSetArg (av[ac], XtNforeground, pixel);
      ++ac;
    }

  pixel = f->output_data.x->scroll_bar_background_pixel;
  if (pixel != -1)
    {
      XtSetArg (av[ac], XtNbackground, pixel);
      ++ac;
    }

  /* Top/bottom shadow colors.  */

  /* Allocate them, if necessary.  */
  if (f->output_data.x->scroll_bar_top_shadow_pixel == -1)
    {
      pixel = f->output_data.x->scroll_bar_background_pixel;
      if (pixel != -1)
        {
          if (!x_alloc_lighter_color (f, FRAME_X_DISPLAY (f),
                                      FRAME_X_COLORMAP (f),
                                      &pixel, 1.2, 0x8000))
            pixel = -1;
          f->output_data.x->scroll_bar_top_shadow_pixel = pixel;
        }
    }
  if (f->output_data.x->scroll_bar_bottom_shadow_pixel == -1)
    {
      pixel = f->output_data.x->scroll_bar_background_pixel;
      if (pixel != -1)
        {
          if (!x_alloc_lighter_color (f, FRAME_X_DISPLAY (f),
                                      FRAME_X_COLORMAP (f),
                                      &pixel, 0.6, 0x4000))
            pixel = -1;
          f->output_data.x->scroll_bar_bottom_shadow_pixel = pixel;
        }
    }

#ifdef XtNbeNiceToColormap
  /* Tell the toolkit about them.  */
  if (f->output_data.x->scroll_bar_top_shadow_pixel == -1
      || f->output_data.x->scroll_bar_bottom_shadow_pixel == -1)
    /* We tried to allocate a color for the top/bottom shadow, and
       failed, so tell Xaw3d to use dithering instead.   */
    /* But only if we have a small colormap.  Xaw3d can allocate nice
       colors itself.  */
    {
      XtSetArg (av[ac], (String) XtNbeNiceToColormap,
                DefaultDepthOfScreen (FRAME_X_SCREEN (f)) < 16);
      ++ac;
    }
  else
    /* Tell what colors Xaw3d should use for the top/bottom shadow, to
       be more consistent with other emacs 3d colors, and since Xaw3d is
       not good at dealing with allocation failure.  */
    {
      /* This tells Xaw3d to use real colors instead of dithering for
	 the shadows.  */
      XtSetArg (av[ac], (String) XtNbeNiceToColormap, False);
      ++ac;

      /* Specify the colors.  */
      pixel = f->output_data.x->scroll_bar_top_shadow_pixel;
      if (pixel != -1)
	{
	  XtSetArg (av[ac], (String) XtNtopShadowPixel, pixel);
	  ++ac;
	}
      pixel = f->output_data.x->scroll_bar_bottom_shadow_pixel;
      if (pixel != -1)
	{
	  XtSetArg (av[ac], (String) XtNbottomShadowPixel, pixel);
	  ++ac;
	}
    }
#endif

  widget = XtCreateWidget (scroll_bar_name, scrollbarWidgetClass,
			   f->output_data.x->edit_widget, av, ac);

  {
    char const *initial = "";
    char const *val = initial;
    XtVaGetValues (widget, XtNscrollVCursor, (XtPointer) &val,
#ifdef XtNarrowScrollbars
		   XtNarrowScrollbars, (XtPointer) &xaw3d_arrow_scroll,
#endif
		   XtNpickTop, (XtPointer) &xaw3d_pick_top, NULL);
    if (xaw3d_arrow_scroll || val == initial)
      {	/* ARROW_SCROLL */
	xaw3d_arrow_scroll = True;
	/* Isn't that just a personal preference ?   --Stef */
	XtVaSetValues (widget, XtNcursorName, "top_left_arrow", NULL);
      }
  }

  /* Define callbacks.  */
  XtAddCallback (widget, XtNjumpProc, xaw_jump_callback, (XtPointer) bar);
  XtAddCallback (widget, XtNscrollProc, xaw_scroll_callback,
		 (XtPointer) bar);

  /* Realize the widget.  Only after that is the X window created.  */
  XtRealizeWidget (widget);

#endif /* !USE_MOTIF */

  /* Install an action hook that lets us detect when the user
     finishes interacting with a scroll bar.  */
  if (horizontal_action_hook_id == 0)
   horizontal_action_hook_id
     = XtAppAddActionHook (Xt_app_con, xt_horizontal_action_hook, 0);

  /* Remember X window and widget in the scroll bar vector.  */
  SET_SCROLL_BAR_X_WIDGET (bar, widget);
  xwindow = XtWindow (widget);
  bar->x_window = xwindow;
  bar->whole = 1;
  bar->horizontal = true;

  unblock_input ();
}
#endif /* not USE_GTK */


/* Set the thumb size and position of scroll bar BAR.  We are currently
   displaying PORTION out of a whole WHOLE, and our position POSITION.  */

#ifdef USE_GTK
static void
x_set_toolkit_scroll_bar_thumb (struct scroll_bar *bar, int portion, int position, int whole)
{
  xg_set_toolkit_scroll_bar_thumb (bar, portion, position, whole);
}

static void
x_set_toolkit_horizontal_scroll_bar_thumb (struct scroll_bar *bar, int portion, int position, int whole)
{
  xg_set_toolkit_horizontal_scroll_bar_thumb (bar, portion, position, whole);
}

#else /* not USE_GTK */
static void
x_set_toolkit_scroll_bar_thumb (struct scroll_bar *bar, int portion, int position,
				int whole)
{
  struct frame *f = XFRAME (WINDOW_FRAME (XWINDOW (bar->window)));
  Widget widget = SCROLL_BAR_X_WIDGET (FRAME_X_DISPLAY (f), bar);
  float top, shown;

  block_input ();

#ifdef USE_MOTIF

  if (scroll_bar_adjust_thumb_portion_p)
    {
      /* We use an estimate of 30 chars per line rather than the real
         `portion' value.  This has the disadvantage that the thumb size
         is not very representative, but it makes our life a lot easier.
         Otherwise, we have to constantly adjust the thumb size, which
         we can't always do quickly enough: while dragging, the size of
         the thumb might prevent the user from dragging the thumb all the
         way to the end.  but Motif and some versions of Xaw3d don't allow
         updating the thumb size while dragging.  Also, even if we can update
         its size, the update will often happen too late.
         If you don't believe it, check out revision 1.650 of xterm.c to see
         what hoops we were going through and the still poor behavior we got.  */
      portion = WINDOW_TOTAL_LINES (XWINDOW (bar->window)) * 30;
      /* When the thumb is at the bottom, position == whole.
         So we need to increase `whole' to make space for the thumb.  */
      whole += portion;
    }

  if (whole <= 0)
    top = 0, shown = 1;
  else
    {
      top = (float) position / whole;
      shown = (float) portion / whole;
    }

  if (bar->dragging == -1)
    {
      int size, value;

      /* Slider size.  Must be in the range [1 .. MAX - MIN] where MAX
         is the scroll bar's maximum and MIN is the scroll bar's minimum
	 value.  */
      size = clip_to_bounds (1, shown * XM_SB_MAX, XM_SB_MAX);

      /* Position.  Must be in the range [MIN .. MAX - SLIDER_SIZE].  */
      value = top * XM_SB_MAX;
      value = min (value, XM_SB_MAX - size);

      XmScrollBarSetValues (widget, value, size, 0, 0, False);
    }
#else /* !USE_MOTIF i.e. use Xaw */

  if (whole == 0)
    top = 0, shown = 1;
  else
    {
      top = (float) position / whole;
      shown = (float) portion / whole;
    }

  {
    float old_top, old_shown;
    Dimension height;
    XtVaGetValues (widget,
		   XtNtopOfThumb, &old_top,
		   XtNshown, &old_shown,
		   XtNheight, &height,
		   NULL);

    /* Massage the top+shown values.  */
    if (bar->dragging == -1 || bar->last_seen_part == scroll_bar_down_arrow)
      top = max (0, min (1, top));
    else
      top = old_top;
#if ! defined (HAVE_XAW3D)
    /* With Xaw, 'top' values too closer to 1.0 may
       cause the thumb to disappear.  Fix that.  */
    top = min (top, 0.99f);
#endif
    /* Keep two pixels available for moving the thumb down.  */
    shown = max (0, min (1 - top - (2.0f / height), shown));
#if ! defined (HAVE_XAW3D)
    /* Likewise with too small 'shown'.  */
    shown = max (shown, 0.01f);
#endif

    /* If the call to XawScrollbarSetThumb below doesn't seem to
       work, check that 'NARROWPROTO' is defined in src/config.h.
       If this is not so, most likely you need to fix configure.  */
    if (top != old_top || shown != old_shown)
      {
	if (bar->dragging == -1)
	  XawScrollbarSetThumb (widget, top, shown);
	else
	  {
	    /* Try to make the scrolling a tad smoother.  */
	    if (!xaw3d_pick_top)
	      shown = min (shown, old_shown);

	    XawScrollbarSetThumb (widget, top, shown);
	  }
      }
  }
#endif /* !USE_MOTIF */

  unblock_input ();
}

static void
x_set_toolkit_horizontal_scroll_bar_thumb (struct scroll_bar *bar, int portion, int position,
				int whole)
{
  struct frame *f = XFRAME (WINDOW_FRAME (XWINDOW (bar->window)));
  Widget widget = SCROLL_BAR_X_WIDGET (FRAME_X_DISPLAY (f), bar);
  float top, shown;

  block_input ();

#ifdef USE_MOTIF
  bar->whole = whole;
  shown = (float) portion / whole;
  top = (float) position / (whole - portion);
  {
    int size = clip_to_bounds (1, shown * XM_SB_MAX, XM_SB_MAX);
    int value = clip_to_bounds (0, top * (XM_SB_MAX - size), XM_SB_MAX - size);

    XmScrollBarSetValues (widget, value, size, 0, 0, False);
  }
#else /* !USE_MOTIF i.e. use Xaw */
  bar->whole = whole;
  if (whole == 0)
    top = 0, shown = 1;
  else
    {
      top = (float) position / whole;
      shown = (float) portion / whole;
    }

  {
    float old_top, old_shown;
    Dimension height;
    XtVaGetValues (widget,
		   XtNtopOfThumb, &old_top,
		   XtNshown, &old_shown,
		   XtNheight, &height,
		   NULL);

#if false
    /* Massage the top+shown values.  */
    if (bar->dragging == -1 || bar->last_seen_part == scroll_bar_down_arrow)
      top = max (0, min (1, top));
    else
      top = old_top;
#if ! defined (HAVE_XAW3D)
    /* With Xaw, 'top' values too closer to 1.0 may
       cause the thumb to disappear.  Fix that.  */
    top = min (top, 0.99f);
#endif
    /* Keep two pixels available for moving the thumb down.  */
    shown = max (0, min (1 - top - (2.0f / height), shown));
#if ! defined (HAVE_XAW3D)
    /* Likewise with too small 'shown'.  */
    shown = max (shown, 0.01f);
#endif
#endif

    /* If the call to XawScrollbarSetThumb below doesn't seem to
       work, check that 'NARROWPROTO' is defined in src/config.h.
       If this is not so, most likely you need to fix configure.  */
    XawScrollbarSetThumb (widget, top, shown);
#if false
    if (top != old_top || shown != old_shown)
      {
	if (bar->dragging == -1)
	  XawScrollbarSetThumb (widget, top, shown);
	else
	  {
	    /* Try to make the scrolling a tad smoother.  */
	    if (!xaw3d_pick_top)
	      shown = min (shown, old_shown);

	    XawScrollbarSetThumb (widget, top, shown);
	  }
      }
#endif
  }
#endif /* !USE_MOTIF */

  unblock_input ();
}
#endif /* not USE_GTK */

#endif /* USE_TOOLKIT_SCROLL_BARS */


\f
/************************************************************************
			 Scroll bars, general
 ************************************************************************/

/* Create a scroll bar and return the scroll bar vector for it.  W is
   the Emacs window on which to create the scroll bar. TOP, LEFT,
   WIDTH and HEIGHT are the pixel coordinates and dimensions of the
   scroll bar. */

static struct scroll_bar *
x_scroll_bar_create (struct window *w, int top, int left,
		     int width, int height, bool horizontal)
{
  struct frame *f = XFRAME (w->frame);
  struct scroll_bar *bar = ALLOCATE_PSEUDOVECTOR (struct scroll_bar, prev,
						  PVEC_OTHER);
  Lisp_Object barobj;

  block_input ();

#ifdef USE_TOOLKIT_SCROLL_BARS
  if (horizontal)
    x_create_horizontal_toolkit_scroll_bar (f, bar);
  else
    x_create_toolkit_scroll_bar (f, bar);
#else /* not USE_TOOLKIT_SCROLL_BARS */
  {
    XSetWindowAttributes a;
    unsigned long mask;
    Window window;

    a.event_mask = (ButtonPressMask | ButtonReleaseMask
		    | ButtonMotionMask | PointerMotionHintMask);
    a.cursor = FRAME_DISPLAY_INFO (f)->vertical_scroll_bar_cursor;

    mask = (CWEventMask | CWCursor);

    /* Clear the area of W that will serve as a scroll bar.  This is
       for the case that a window has been split horizontally.  In
       this case, no clear_frame is generated to reduce flickering.  */
    if (width > 0 && window_box_height (w) > 0)
      x_clear_area (f, left, top, width, window_box_height (w));

    /* Create an input only window.  Scroll bar contents are drawn to
       the frame window itself, so they can be double buffered and
       synchronized using the same mechanism as the frame.  */
    window = XCreateWindow (FRAME_X_DISPLAY (f), FRAME_X_WINDOW (f),
			    /* Position and size of scroll bar.  */
			    left, top, width, height,
			    /* Border width.  */
			    0,
			    /* Depth.  */
			    CopyFromParent,
			    /* Class.  */
			    InputOnly,
			    /* Visual class.  */
			    CopyFromParent,
			     /* Attributes.  */
			    mask, &a);

#ifdef HAVE_XINPUT2
  /* Ask for input extension button and motion events.  This lets us
     send the proper `wheel-up' or `wheel-down' events to Emacs.  */
  if (FRAME_DISPLAY_INFO (f)->supports_xi2)
    xi_select_scroll_bar_events (FRAME_DISPLAY_INFO (f),
				 window);
#endif

    bar->x_window = window;
  }
#endif /* not USE_TOOLKIT_SCROLL_BARS */

  XSETWINDOW (bar->window, w);
  bar->top = top;
  bar->left = left;
  bar->width = width;
  bar->height = height;
  bar->start = 0;
  bar->end = 0;
  bar->dragging = -1;
  bar->horizontal = horizontal;
#if defined (USE_TOOLKIT_SCROLL_BARS) && defined (USE_LUCID)
  bar->last_seen_part = scroll_bar_nowhere;
#endif

  /* Add bar to its frame's list of scroll bars.  */
  bar->next = FRAME_SCROLL_BARS (f);
  bar->prev = Qnil;
  XSETVECTOR (barobj, bar);
  fset_scroll_bars (f, barobj);
  if (!NILP (bar->next))
    XSETVECTOR (XSCROLL_BAR (bar->next)->prev, bar);

  /* Map the window/widget.  */
#ifdef USE_TOOLKIT_SCROLL_BARS
  {
#ifdef USE_GTK
    if (horizontal)
      xg_update_horizontal_scrollbar_pos (f, bar->x_window, top,
					  left, width, max (height, 1));
    else
      xg_update_scrollbar_pos (f, bar->x_window, top,
			       left, width, max (height, 1));
#else /* not USE_GTK */
    Widget scroll_bar = SCROLL_BAR_X_WIDGET (FRAME_X_DISPLAY (f), bar);
    XtConfigureWidget (scroll_bar, left, top, width, max (height, 1), 0);
    XtMapWidget (scroll_bar);
    /* Don't obscure any child frames.  */
    XLowerWindow (FRAME_X_DISPLAY (f), bar->x_window);
#endif /* not USE_GTK */
    }
#else /* not USE_TOOLKIT_SCROLL_BARS */
  XMapWindow (FRAME_X_DISPLAY (f), bar->x_window);
  /* Don't obscure any child frames.  */
  XLowerWindow (FRAME_X_DISPLAY (f), bar->x_window);
#endif /* not USE_TOOLKIT_SCROLL_BARS */

  unblock_input ();
  return bar;
}


#ifndef USE_TOOLKIT_SCROLL_BARS

/* Draw BAR's handle in the proper position.

   If the handle is already drawn from START to END, don't bother
   redrawing it, unless REBUILD; in that case, always
   redraw it.  (REBUILD is handy for drawing the handle after expose
   events.)

   Normally, we want to constrain the start and end of the handle to
   fit inside its rectangle, but if the user is dragging the scroll
   bar handle, we want to let them drag it down all the way, so that
   the bar's top is as far down as it goes; otherwise, there's no way
   to move to the very end of the buffer.  */

static void
x_scroll_bar_set_handle (struct scroll_bar *bar, int start, int end,
			 bool rebuild)
{
  bool dragging;
  struct frame *f;
  Drawable w;
  GC gc;
  int inside_width, inside_height, top_range, length;

  /* If the display is already accurate, do nothing.  */
  if (! rebuild
      && start == bar->start
      && end == bar->end)
    return;

  f = XFRAME (WINDOW_FRAME (XWINDOW (bar->window)));
  dragging = bar->dragging != -1;
  gc = f->output_data.x->normal_gc;
  w = FRAME_X_DRAWABLE (f);

  block_input ();

  inside_width = VERTICAL_SCROLL_BAR_INSIDE_WIDTH (f, bar->width);
  inside_height = VERTICAL_SCROLL_BAR_INSIDE_HEIGHT (f, bar->height);
  top_range = VERTICAL_SCROLL_BAR_TOP_RANGE (f, bar->height);

  /* Make sure the values are reasonable, and try to preserve
     the distance between start and end.  */
  length = end - start;

  if (start < 0)
    start = 0;
  else if (start > top_range)
    start = top_range;
  end = start + length;

  if (end < start)
    end = start;
  else if (end > top_range && ! dragging)
    end = top_range;

  /* Store the adjusted setting in the scroll bar.  */
  bar->start = start;
  bar->end = end;

  /* Clip the end position, just for display.  */
  if (end > top_range)
    end = top_range;

  /* Draw bottom positions VERTICAL_SCROLL_BAR_MIN_HANDLE pixels
     below top positions, to make sure the handle is always at least
     that many pixels tall.  */
  end += VERTICAL_SCROLL_BAR_MIN_HANDLE;

  /* Draw the empty space above the handle.  Note that we can't clear
     zero-height areas; that means "clear to end of window."  */
  if ((inside_width > 0) && (start > 0))
    {
      if (f->output_data.x->scroll_bar_background_pixel != -1)
	XSetForeground (FRAME_X_DISPLAY (f), gc,
			f->output_data.x->scroll_bar_background_pixel);
      else
	XSetForeground (FRAME_X_DISPLAY (f), gc,
			FRAME_BACKGROUND_PIXEL (f));

      XFillRectangle (FRAME_X_DISPLAY (f), w, gc,
		      bar->left + VERTICAL_SCROLL_BAR_LEFT_BORDER,
		      bar->top + VERTICAL_SCROLL_BAR_TOP_BORDER,
		      inside_width, start);

      XSetForeground (FRAME_X_DISPLAY (f), gc,
		      FRAME_FOREGROUND_PIXEL (f));
    }

  /* Change to proper foreground color if one is specified.  */
  if (f->output_data.x->scroll_bar_foreground_pixel != -1)
    XSetForeground (FRAME_X_DISPLAY (f), gc,
		    f->output_data.x->scroll_bar_foreground_pixel);

  /* Draw the handle itself.  */
  XFillRectangle (FRAME_X_DISPLAY (f), w, gc,
		  /* x, y, width, height */
		  bar->left + VERTICAL_SCROLL_BAR_LEFT_BORDER,
		  bar->top + VERTICAL_SCROLL_BAR_TOP_BORDER + start,
		  inside_width, end - start);


  /* Draw the empty space below the handle.  Note that we can't
     clear zero-height areas; that means "clear to end of window." */
  if ((inside_width > 0) && (end < inside_height))
    {
      if (f->output_data.x->scroll_bar_background_pixel != -1)
	XSetForeground (FRAME_X_DISPLAY (f), gc,
			f->output_data.x->scroll_bar_background_pixel);
      else
	XSetForeground (FRAME_X_DISPLAY (f), gc,
			FRAME_BACKGROUND_PIXEL (f));

      XFillRectangle (FRAME_X_DISPLAY (f), w, gc,
		      bar->left + VERTICAL_SCROLL_BAR_LEFT_BORDER,
		      bar->top + VERTICAL_SCROLL_BAR_TOP_BORDER + end,
		      inside_width, inside_height - end);

      XSetForeground (FRAME_X_DISPLAY (f), gc,
		      FRAME_FOREGROUND_PIXEL (f));
    }

  /* Restore the foreground color of the GC if we changed it above.  */
  if (f->output_data.x->scroll_bar_foreground_pixel != -1)
    XSetForeground (FRAME_X_DISPLAY (f), gc,
		    FRAME_FOREGROUND_PIXEL (f));

  unblock_input ();
}

#endif /* !USE_TOOLKIT_SCROLL_BARS */

/* Destroy scroll bar BAR, and set its Emacs window's scroll bar to
   nil.  */

static void
x_scroll_bar_remove (struct scroll_bar *bar)
{
  struct frame *f = XFRAME (WINDOW_FRAME (XWINDOW (bar->window)));
  block_input ();

#ifdef USE_TOOLKIT_SCROLL_BARS
#ifdef USE_GTK
  xg_remove_scroll_bar (f, bar->x_window);
#else /* not USE_GTK */
  XtDestroyWidget (SCROLL_BAR_X_WIDGET (FRAME_X_DISPLAY (f), bar));
#endif /* not USE_GTK */
#else
  XDestroyWindow (FRAME_X_DISPLAY (f), bar->x_window);
#endif

  /* Dissociate this scroll bar from its window.  */
  if (bar->horizontal)
    wset_horizontal_scroll_bar (XWINDOW (bar->window), Qnil);
  else
    wset_vertical_scroll_bar (XWINDOW (bar->window), Qnil);

  unblock_input ();
}


/* Set the handle of the vertical scroll bar for WINDOW to indicate
   that we are displaying PORTION characters out of a total of WHOLE
   characters, starting at POSITION.  If WINDOW has no scroll bar,
   create one.  */

static void
XTset_vertical_scroll_bar (struct window *w, int portion, int whole, int position)
{
  struct frame *f = XFRAME (w->frame);
  Lisp_Object barobj;
  struct scroll_bar *bar;
  int top, height, left, width;
  int window_y, window_height;

  /* Get window dimensions.  */
  window_box (w, ANY_AREA, 0, &window_y, 0, &window_height);
  top = window_y;
  height = window_height;
  left = WINDOW_SCROLL_BAR_AREA_X (w);
  width = WINDOW_SCROLL_BAR_AREA_WIDTH (w);

  /* Does the scroll bar exist yet?  */
  if (NILP (w->vertical_scroll_bar))
    {
      if (width > 0 && height > 0)
	{
	  block_input ();
          x_clear_area (f, left, top, width, height);
	  unblock_input ();
	}

      bar = x_scroll_bar_create (w, top, left, width, max (height, 1), false);
#ifndef USE_TOOLKIT_SCROLL_BARS
      /* Since non-toolkit scroll bars don't display their contents to
	 a dedicated window, no expose event will be generated.
	 Redraw the scroll bar manually.  */
      x_scroll_bar_redraw (bar);
#endif
    }
  else
    {
      /* It may just need to be moved and resized.  */
      unsigned int mask = 0;

      bar = XSCROLL_BAR (w->vertical_scroll_bar);

      block_input ();

      if (left != bar->left)
	mask |= CWX;
      if (top != bar->top)
	mask |= CWY;
      if (width != bar->width)
	mask |= CWWidth;
      if (height != bar->height)
	mask |= CWHeight;

#ifdef USE_TOOLKIT_SCROLL_BARS

      /* Move/size the scroll bar widget.  */
      if (mask)
	{
	  /* Since toolkit scroll bars are smaller than the space reserved
	     for them on the frame, we have to clear "under" them.  */
	  if (width > 0 && height > 0)
	    x_clear_area (f, left, top, width, height);
#ifdef USE_GTK
          xg_update_scrollbar_pos (f, bar->x_window, top,
				   left, width, max (height, 1));
#else /* not USE_GTK */
          XtConfigureWidget (SCROLL_BAR_X_WIDGET (FRAME_X_DISPLAY (f), bar),
                             left, top, width, max (height, 1), 0);
#endif /* not USE_GTK */
	}
#else /* not USE_TOOLKIT_SCROLL_BARS */

      /* Move/size the scroll bar window.  */
      if (mask)
	{
	  XWindowChanges wc;

	  wc.x = left;
	  wc.y = top;
	  wc.width = width;
	  wc.height = height;
	  XConfigureWindow (FRAME_X_DISPLAY (f), bar->x_window,
			    mask, &wc);
	}

#endif /* not USE_TOOLKIT_SCROLL_BARS */

      /* Remember new settings.  */
      bar->left = left;
      bar->top = top;
      bar->width = width;
      bar->height = height;

#ifndef USE_TOOLKIT_SCROLL_BARS
      /* Redraw the scroll bar.  */
      x_scroll_bar_redraw (bar);
#endif

      unblock_input ();
    }

#ifdef USE_TOOLKIT_SCROLL_BARS
  x_set_toolkit_scroll_bar_thumb (bar, portion, position, whole);
#else /* not USE_TOOLKIT_SCROLL_BARS */
  /* Set the scroll bar's current state, unless we're currently being
     dragged.  */
  if (bar->dragging == -1)
    {
      int top_range = VERTICAL_SCROLL_BAR_TOP_RANGE (f, height);

      if (whole == 0)
	x_scroll_bar_set_handle (bar, 0, top_range, false);
      else
	{
	  int start = ((double) position * top_range) / whole;
	  int end = ((double) (position + portion) * top_range) / whole;
	  x_scroll_bar_set_handle (bar, start, end, false);
	}
    }
#endif /* not USE_TOOLKIT_SCROLL_BARS */

  XSETVECTOR (barobj, bar);
  wset_vertical_scroll_bar (w, barobj);
}


static void
XTset_horizontal_scroll_bar (struct window *w, int portion, int whole, int position)
{
  struct frame *f = XFRAME (w->frame);
  Lisp_Object barobj;
  struct scroll_bar *bar;
  int top, height, left, width;
  int window_x, window_width;
  int pixel_width = WINDOW_PIXEL_WIDTH (w);

  /* Get window dimensions.  */
  window_box (w, ANY_AREA, &window_x, 0, &window_width, 0);
  left = window_x;
  width = window_width;
  top = WINDOW_SCROLL_BAR_AREA_Y (w);
  height = WINDOW_SCROLL_BAR_AREA_HEIGHT (w);

  /* Does the scroll bar exist yet?  */
  if (NILP (w->horizontal_scroll_bar))
    {
      if (width > 0 && height > 0)
	{
	  block_input ();

	  /* Clear also part between window_width and
	     WINDOW_PIXEL_WIDTH.  */
	  x_clear_area (f, left, top, pixel_width, height);
	  unblock_input ();
	}

      bar = x_scroll_bar_create (w, top, left, width, height, true);
    }
  else
    {
      /* It may just need to be moved and resized.  */
      unsigned int mask = 0;

      bar = XSCROLL_BAR (w->horizontal_scroll_bar);

      block_input ();

      if (left != bar->left)
	mask |= CWX;
      if (top != bar->top)
	mask |= CWY;
      if (width != bar->width)
	mask |= CWWidth;
      if (height != bar->height)
	mask |= CWHeight;

#ifdef USE_TOOLKIT_SCROLL_BARS
      /* Move/size the scroll bar widget.  */
      if (mask)
	{
	  /* Since toolkit scroll bars are smaller than the space reserved
	     for them on the frame, we have to clear "under" them.  */
	  if (width > 0 && height > 0)
	    x_clear_area (f,
			  WINDOW_LEFT_EDGE_X (w), top,
			  pixel_width - WINDOW_RIGHT_DIVIDER_WIDTH (w), height);
#ifdef USE_GTK
          xg_update_horizontal_scrollbar_pos (f, bar->x_window, top, left,
					      width, height);
#else /* not USE_GTK */
          XtConfigureWidget (SCROLL_BAR_X_WIDGET (FRAME_X_DISPLAY (f), bar),
                             left, top, width, height, 0);
#endif /* not USE_GTK */
	}
#else /* not USE_TOOLKIT_SCROLL_BARS */

      /* Clear areas not covered by the scroll bar because it's not as
	 wide as the area reserved for it.  This makes sure a
	 previous mode line display is cleared after C-x 2 C-x 1, for
	 example.  */
      {
	int area_height = WINDOW_CONFIG_SCROLL_BAR_HEIGHT (w);
	int rest = area_height - height;
	if (rest > 0 && width > 0)
	  x_clear_area (f, left, top, width, rest);
      }

      /* Move/size the scroll bar window.  */
      if (mask)
	{
	  XWindowChanges wc;

	  wc.x = left;
	  wc.y = top;
	  wc.width = width;
	  wc.height = height;
	  XConfigureWindow (FRAME_X_DISPLAY (f), bar->x_window,
			    mask, &wc);
	}

#endif /* not USE_TOOLKIT_SCROLL_BARS */

      /* Remember new settings.  */
      bar->left = left;
      bar->top = top;
      bar->width = width;
      bar->height = height;

      unblock_input ();
    }

#ifdef USE_TOOLKIT_SCROLL_BARS
  x_set_toolkit_horizontal_scroll_bar_thumb (bar, portion, position, whole);
#else /* not USE_TOOLKIT_SCROLL_BARS */
  /* Set the scroll bar's current state, unless we're currently being
     dragged.  */
  if (bar->dragging == -1)
    {
      int left_range = HORIZONTAL_SCROLL_BAR_LEFT_RANGE (f, width);

      if (whole == 0)
	x_scroll_bar_set_handle (bar, 0, left_range, false);
      else
	{
	  int start = ((double) position * left_range) / whole;
	  int end = ((double) (position + portion) * left_range) / whole;
	  x_scroll_bar_set_handle (bar, start, end, false);
	}
    }
#endif /* not USE_TOOLKIT_SCROLL_BARS */

  XSETVECTOR (barobj, bar);
  wset_horizontal_scroll_bar (w, barobj);
}


/* The following three hooks are used when we're doing a thorough
   redisplay of the frame.  We don't explicitly know which scroll bars
   are going to be deleted, because keeping track of when windows go
   away is a real pain - "Can you say set-window-configuration, boys
   and girls?"  Instead, we just assert at the beginning of redisplay
   that *all* scroll bars are to be removed, and then save a scroll bar
   from the fiery pit when we actually redisplay its window.  */

/* Arrange for all scroll bars on FRAME to be removed at the next call
   to `*judge_scroll_bars_hook'.  A scroll bar may be spared if
   `*redeem_scroll_bar_hook' is applied to its window before the judgment.  */

static void
XTcondemn_scroll_bars (struct frame *frame)
{
  if (!NILP (FRAME_SCROLL_BARS (frame)))
    {
      if (!NILP (FRAME_CONDEMNED_SCROLL_BARS (frame)))
	{
	  /* Prepend scrollbars to already condemned ones.  */
	  Lisp_Object last = FRAME_SCROLL_BARS (frame);

	  while (!NILP (XSCROLL_BAR (last)->next))
	    last = XSCROLL_BAR (last)->next;

	  XSCROLL_BAR (last)->next = FRAME_CONDEMNED_SCROLL_BARS (frame);
	  XSCROLL_BAR (FRAME_CONDEMNED_SCROLL_BARS (frame))->prev = last;
	}

      fset_condemned_scroll_bars (frame, FRAME_SCROLL_BARS (frame));
      fset_scroll_bars (frame, Qnil);
    }
}


/* Un-mark WINDOW's scroll bar for deletion in this judgment cycle.
   Note that WINDOW isn't necessarily condemned at all.  */

static void
XTredeem_scroll_bar (struct window *w)
{
  struct scroll_bar *bar;
  Lisp_Object barobj;
  struct frame *f;

  /* We can't redeem this window's scroll bar if it doesn't have one.  */
  if (NILP (w->vertical_scroll_bar) && NILP (w->horizontal_scroll_bar))
    emacs_abort ();

  if (!NILP (w->vertical_scroll_bar) && WINDOW_HAS_VERTICAL_SCROLL_BAR (w))
    {
      bar = XSCROLL_BAR (w->vertical_scroll_bar);
      /* Unlink it from the condemned list.  */
      f = XFRAME (WINDOW_FRAME (w));
      if (NILP (bar->prev))
	{
	  /* If the prev pointer is nil, it must be the first in one of
	     the lists.  */
	  if (EQ (FRAME_SCROLL_BARS (f), w->vertical_scroll_bar))
	    /* It's not condemned.  Everything's fine.  */
	    goto horizontal;
	  else if (EQ (FRAME_CONDEMNED_SCROLL_BARS (f),
		       w->vertical_scroll_bar))
	    fset_condemned_scroll_bars (f, bar->next);
	  else
	    /* If its prev pointer is nil, it must be at the front of
	       one or the other!  */
	    emacs_abort ();
	}
      else
	XSCROLL_BAR (bar->prev)->next = bar->next;

      if (! NILP (bar->next))
	XSCROLL_BAR (bar->next)->prev = bar->prev;

      bar->next = FRAME_SCROLL_BARS (f);
      bar->prev = Qnil;
      XSETVECTOR (barobj, bar);
      fset_scroll_bars (f, barobj);
      if (! NILP (bar->next))
	XSETVECTOR (XSCROLL_BAR (bar->next)->prev, bar);
    }

 horizontal:
  if (!NILP (w->horizontal_scroll_bar) && WINDOW_HAS_HORIZONTAL_SCROLL_BAR (w))
    {
      bar = XSCROLL_BAR (w->horizontal_scroll_bar);
      /* Unlink it from the condemned list.  */
      f = XFRAME (WINDOW_FRAME (w));
      if (NILP (bar->prev))
	{
	  /* If the prev pointer is nil, it must be the first in one of
	     the lists.  */
	  if (EQ (FRAME_SCROLL_BARS (f), w->horizontal_scroll_bar))
	    /* It's not condemned.  Everything's fine.  */
	    return;
	  else if (EQ (FRAME_CONDEMNED_SCROLL_BARS (f),
		       w->horizontal_scroll_bar))
	    fset_condemned_scroll_bars (f, bar->next);
	  else
	    /* If its prev pointer is nil, it must be at the front of
	       one or the other!  */
	    emacs_abort ();
	}
      else
	XSCROLL_BAR (bar->prev)->next = bar->next;

      if (! NILP (bar->next))
	XSCROLL_BAR (bar->next)->prev = bar->prev;

      bar->next = FRAME_SCROLL_BARS (f);
      bar->prev = Qnil;
      XSETVECTOR (barobj, bar);
      fset_scroll_bars (f, barobj);
      if (! NILP (bar->next))
	XSETVECTOR (XSCROLL_BAR (bar->next)->prev, bar);
    }
}

/* Remove all scroll bars on FRAME that haven't been saved since the
   last call to `*condemn_scroll_bars_hook'.  */

static void
XTjudge_scroll_bars (struct frame *f)
{
  Lisp_Object bar, next;

  bar = FRAME_CONDEMNED_SCROLL_BARS (f);

  /* Clear out the condemned list now so we won't try to process any
     more events on the hapless scroll bars.  */
  fset_condemned_scroll_bars (f, Qnil);

  for (; ! NILP (bar); bar = next)
    {
      struct scroll_bar *b = XSCROLL_BAR (bar);

      x_scroll_bar_remove (b);

      next = b->next;
      b->next = b->prev = Qnil;
    }

  /* Now there should be no references to the condemned scroll bars,
     and they should get garbage-collected.  */
}


#ifndef USE_TOOLKIT_SCROLL_BARS
/* Handle exposure event EVENT generated for F, by redrawing all
   intersecting scroll bars.  */

static void
x_scroll_bar_handle_exposure (struct frame *f, XEvent *event)
{
  int x, y, width, height;
  XRectangle rect, scroll_bar_rect, intersection;
  Lisp_Object bar, condemned;
  struct scroll_bar *b;

  if (event->type == GraphicsExpose)
    {
      x = event->xgraphicsexpose.x;
      y = event->xgraphicsexpose.y;
      width = event->xgraphicsexpose.width;
      height = event->xgraphicsexpose.height;
    }
  else
    {
      x = event->xexpose.x;
      y = event->xexpose.y;
      width = event->xexpose.width;
      height = event->xexpose.height;
    }

  rect.x = x;
  rect.y = y;
  rect.width = width;
  rect.height = height;

  /* Scan this frame's scroll bar list for intersecting scroll
     bars.  */
  condemned = FRAME_CONDEMNED_SCROLL_BARS (f);
  for (bar = FRAME_SCROLL_BARS (f);
       /* This trick allows us to search both the ordinary and
	  condemned scroll bar lists with one loop.  */
       !NILP (bar) || (bar = condemned,
		       condemned = Qnil,
		       !NILP (bar));
       bar = XSCROLL_BAR (bar)->next)
    {
      b = XSCROLL_BAR (bar);

      scroll_bar_rect.x = b->left;
      scroll_bar_rect.y = b->top;
      scroll_bar_rect.width = b->width;
      scroll_bar_rect.height = b->height;

      if (gui_intersect_rectangles (&rect,
				    &scroll_bar_rect,
				    &intersection))
	x_scroll_bar_redraw (b);
    }
}

/* Redraw the scroll bar BAR.  Draw its border and set its thumb.
   This is usually called from x_clear_frame, but is also used to
   handle exposure events that overlap scroll bars.  */

static void
x_scroll_bar_redraw (struct scroll_bar *bar)
{
  struct frame *f = XFRAME (WINDOW_FRAME (XWINDOW (bar->window)));
  GC gc = f->output_data.x->normal_gc;

  if (f->output_data.x->scroll_bar_background_pixel != -1)
    XSetForeground (FRAME_X_DISPLAY (f), gc,
		    f->output_data.x->scroll_bar_background_pixel);
  else
    XSetForeground (FRAME_X_DISPLAY (f), gc,
		    FRAME_BACKGROUND_PIXEL (f));

  XFillRectangle (FRAME_X_DISPLAY (f), FRAME_X_DRAWABLE (f), gc,
		  bar->left, bar->top, bar->width, bar->height);

  XSetForeground (FRAME_X_DISPLAY (f), gc,
		  FRAME_FOREGROUND_PIXEL (f));

  x_scroll_bar_set_handle (bar, bar->start, bar->end, true);

  /* Switch to scroll bar foreground color.  */
  if (f->output_data.x->scroll_bar_foreground_pixel != -1)
    XSetForeground (FRAME_X_DISPLAY (f), gc,
		    f->output_data.x->scroll_bar_foreground_pixel);

  /* Draw a one-pixel border just inside the edges of the scroll bar.  */
  XDrawRectangle (FRAME_X_DISPLAY (f), FRAME_X_DRAWABLE (f), gc,
		  bar->left, bar->top, bar->width - 1, bar->height - 1);

  /* Restore the foreground color of the GC if we changed it above.  */
  if (f->output_data.x->scroll_bar_foreground_pixel != -1)
    XSetForeground (FRAME_X_DISPLAY (f), gc,
		    FRAME_FOREGROUND_PIXEL (f));
}
#endif /* not USE_TOOLKIT_SCROLL_BARS */

/* Handle a mouse click on the scroll bar BAR.  If *EMACS_EVENT's kind
   is set to something other than NO_EVENT, it is enqueued.

   This may be called from a signal handler, so we have to ignore GC
   mark bits.  */


static void
x_scroll_bar_handle_click (struct scroll_bar *bar,
			   const XEvent *event,
			   struct input_event *emacs_event,
			   Lisp_Object device)
{
  int left_range, x, top_range, y;
#ifndef USE_TOOLKIT_SCROLL_BARS
  int new_start, new_end;
#endif

  if (! WINDOWP (bar->window))
    emacs_abort ();

  emacs_event->kind = (bar->horizontal
		       ? HORIZONTAL_SCROLL_BAR_CLICK_EVENT
		       : SCROLL_BAR_CLICK_EVENT);
  emacs_event->code = event->xbutton.button - Button1;
  emacs_event->modifiers
    = (x_x_to_emacs_modifiers (FRAME_DISPLAY_INFO
			       (XFRAME (WINDOW_FRAME (XWINDOW (bar->window)))),
			       event->xbutton.state)
       | (event->type == ButtonRelease
	  ? up_modifier
	  : down_modifier));
  emacs_event->frame_or_window = bar->window;
  emacs_event->arg = Qnil;
  emacs_event->timestamp = event->xbutton.time;

  if (!NILP (device))
    emacs_event->device = device;

  if (bar->horizontal)
    {

      left_range = HORIZONTAL_SCROLL_BAR_LEFT_RANGE (f, bar->width);
      x = event->xbutton.x - HORIZONTAL_SCROLL_BAR_LEFT_BORDER;

      if (x < 0) x = 0;
      if (x > left_range) x = left_range;

      if (x < bar->start)
	emacs_event->part = scroll_bar_before_handle;
      else if (x < bar->end + HORIZONTAL_SCROLL_BAR_MIN_HANDLE)
	emacs_event->part = scroll_bar_horizontal_handle;
      else
	emacs_event->part = scroll_bar_after_handle;

#ifndef USE_TOOLKIT_SCROLL_BARS
      /* If the user has released the handle, set it to its final position.  */
      if (event->type == ButtonRelease && bar->dragging != -1)
	{
	  new_start = - bar->dragging;
	  new_end = new_start + bar->end - bar->start;

	  x_scroll_bar_set_handle (bar, new_start, new_end, false);
	  bar->dragging = -1;
	}
#endif

      XSETINT (emacs_event->x, left_range);
      XSETINT (emacs_event->y, x);
    }
  else
    {
      top_range
	= VERTICAL_SCROLL_BAR_TOP_RANGE (f, bar->height);
      y = event->xbutton.y - VERTICAL_SCROLL_BAR_TOP_BORDER;

      if (y < 0) y = 0;
      if (y > top_range) y = top_range;

      if (y < bar->start)
	emacs_event->part = scroll_bar_above_handle;
      else if (y < bar->end + VERTICAL_SCROLL_BAR_MIN_HANDLE)
	emacs_event->part = scroll_bar_handle;
      else
	emacs_event->part = scroll_bar_below_handle;

#ifndef USE_TOOLKIT_SCROLL_BARS
      /* If the user has released the handle, set it to its final position.  */
      if (event->type == ButtonRelease && bar->dragging != -1)
	{
	  new_start = y - bar->dragging;
	  new_end = new_start + bar->end - bar->start;

	  x_scroll_bar_set_handle (bar, new_start, new_end, false);
	  bar->dragging = -1;
	}
#endif

      XSETINT (emacs_event->x, y);
      XSETINT (emacs_event->y, top_range);
    }
}

#ifndef USE_TOOLKIT_SCROLL_BARS

/* Handle some mouse motion while someone is dragging the scroll bar.

   This may be called from a signal handler, so we have to ignore GC
   mark bits.  */

static void
x_scroll_bar_note_movement (struct scroll_bar *bar,
			    const XMotionEvent *event)
{
  struct frame *f = XFRAME (XWINDOW (bar->window)->frame);
  struct x_display_info *dpyinfo = FRAME_DISPLAY_INFO (f);

  dpyinfo->last_mouse_movement_time = event->time;
  dpyinfo->last_mouse_movement_time_send_event = event->send_event;
  dpyinfo->last_mouse_scroll_bar = bar;
  f->mouse_moved = true;

  /* If we're dragging the bar, display it.  */
  if (bar->dragging != -1)
    {
      /* Where should the handle be now?  */
      int new_start = event->y - bar->dragging;

      if (new_start != bar->start)
	{
	  int new_end = new_start + bar->end - bar->start;

	  x_scroll_bar_set_handle (bar, new_start, new_end, false);
	}
    }
}

#endif /* !USE_TOOLKIT_SCROLL_BARS */

/* Return information to the user about the current position of the mouse
   on the scroll bar.  */

static void
x_scroll_bar_report_motion (struct frame **fp, Lisp_Object *bar_window,
			    enum scroll_bar_part *part, Lisp_Object *x,
			    Lisp_Object *y, Time *timestamp)
{
  struct x_display_info *dpyinfo = FRAME_DISPLAY_INFO (*fp);
  struct scroll_bar *bar = dpyinfo->last_mouse_scroll_bar;
  Window w = bar->x_window;
  struct frame *f = XFRAME (WINDOW_FRAME (XWINDOW (bar->window)));
  int win_x, win_y;
  Window dummy_window;
  int dummy_coord;
  unsigned int dummy_mask;

  block_input ();

  /* Get the mouse's position relative to the scroll bar window, and
     report that.  */
  if (x_query_pointer (FRAME_X_DISPLAY (f), w,

		       /* Root, child, root x and root y.  */
		       &dummy_window, &dummy_window,
		       &dummy_coord, &dummy_coord,

		       /* Position relative to scroll bar.  */
		       &win_x, &win_y,

		       /* Mouse buttons and modifier keys.  */
		       &dummy_mask))
    {
      int top_range = VERTICAL_SCROLL_BAR_TOP_RANGE (f, bar->height);

      win_y -= VERTICAL_SCROLL_BAR_TOP_BORDER;

      if (bar->dragging != -1)
	win_y -= bar->dragging;

      if (win_y < 0)
	win_y = 0;
      if (win_y > top_range)
	win_y = top_range;

      *fp = f;
      *bar_window = bar->window;

      if (bar->dragging != -1)
	*part = scroll_bar_handle;
      else if (win_y < bar->start)
	*part = scroll_bar_above_handle;
      else if (win_y < bar->end + VERTICAL_SCROLL_BAR_MIN_HANDLE)
	*part = scroll_bar_handle;
      else
	*part = scroll_bar_below_handle;

      XSETINT (*x, win_y);
      XSETINT (*y, top_range);

      f->mouse_moved = false;
      dpyinfo->last_mouse_scroll_bar = NULL;
      *timestamp = dpyinfo->last_mouse_movement_time;
    }

  unblock_input ();
}


/* Return information to the user about the current position of the mouse
   on the scroll bar.  */

static void
x_horizontal_scroll_bar_report_motion (struct frame **fp, Lisp_Object *bar_window,
				       enum scroll_bar_part *part, Lisp_Object *x,
				       Lisp_Object *y, Time *timestamp)
{
  struct x_display_info *dpyinfo = FRAME_DISPLAY_INFO (*fp);
  struct scroll_bar *bar = dpyinfo->last_mouse_scroll_bar;
  Window w = bar->x_window;
  struct frame *f = XFRAME (WINDOW_FRAME (XWINDOW (bar->window)));
  int win_x, win_y;
  Window dummy_window;
  int dummy_coord;
  unsigned int dummy_mask;

  block_input ();

  /* Get the mouse's position relative to the scroll bar window, and
     report that.  */
  if (x_query_pointer (FRAME_X_DISPLAY (f), w,

		       /* Root, child, root x and root y.  */
		       &dummy_window, &dummy_window,
		       &dummy_coord, &dummy_coord,

		       /* Position relative to scroll bar.  */
		       &win_x, &win_y,

		       /* Mouse buttons and modifier keys.  */
		       &dummy_mask))
    {
      int left_range = HORIZONTAL_SCROLL_BAR_LEFT_RANGE (f, bar->width);

      win_x -= HORIZONTAL_SCROLL_BAR_LEFT_BORDER;

      if (bar->dragging != -1)
	win_x -= bar->dragging;

      if (win_x < 0)
	win_x = 0;
      if (win_x > left_range)
	win_x = left_range;

      *fp = f;
      *bar_window = bar->window;

      if (bar->dragging != -1)
	*part = scroll_bar_horizontal_handle;
      else if (win_x < bar->start)
	*part = scroll_bar_before_handle;
      else if (win_x < bar->end + HORIZONTAL_SCROLL_BAR_MIN_HANDLE)
	*part = scroll_bar_handle;
      else
	*part = scroll_bar_after_handle;

      XSETINT (*y, win_x);
      XSETINT (*x, left_range);

      f->mouse_moved = false;
      dpyinfo->last_mouse_scroll_bar = NULL;
      *timestamp = dpyinfo->last_mouse_movement_time;
    }

  unblock_input ();
}


/* The screen has been cleared and foreground or background colors may
   have changed, so the scroll bars need to be redrawn.  Clear the
   scroll bars and redraw them.  */

static void
x_scroll_bar_clear (struct frame *f)
{
#ifndef USE_TOOLKIT_SCROLL_BARS
  Lisp_Object bar, condemned;
  GC gc = f->output_data.x->normal_gc;

  if (f->output_data.x->scroll_bar_background_pixel != -1)
    XSetForeground (FRAME_X_DISPLAY (f), gc,
		    f->output_data.x->scroll_bar_background_pixel);
  else
    XSetForeground (FRAME_X_DISPLAY (f), gc,
		    FRAME_BACKGROUND_PIXEL (f));

  /* We can have scroll bars even if this is 0,
     if we just turned off scroll bar mode.
     But in that case we should not clear them.  */
  if (FRAME_HAS_VERTICAL_SCROLL_BARS (f))
    {
      condemned = FRAME_CONDEMNED_SCROLL_BARS (f);
      for (bar = FRAME_SCROLL_BARS (f);
	   /* This trick allows us to search both the ordinary and
              condemned scroll bar lists with one loop.  */
	   !NILP (bar) || (bar = condemned,
			   condemned = Qnil,
			   !NILP (bar));
	   bar = XSCROLL_BAR (bar)->next)
	x_scroll_bar_redraw (XSCROLL_BAR (bar));
    }

  XSetForeground (FRAME_X_DISPLAY (f), gc,
		  FRAME_FOREGROUND_PIXEL (f));
#endif /* not USE_TOOLKIT_SCROLL_BARS */
}

#ifdef ENABLE_CHECKING

/* Record the last 100 characters stored
   to help debug the loss-of-chars-during-GC problem.  */

static int temp_index;
static short temp_buffer[100];

#define STORE_KEYSYM_FOR_DEBUG(keysym)				\
  if (temp_index == ARRAYELTS (temp_buffer))			\
    temp_index = 0;						\
  temp_buffer[temp_index++] = (keysym)

#else /* not ENABLE_CHECKING */

#define STORE_KEYSYM_FOR_DEBUG(keysym) ((void)0)

#endif /* ENABLE_CHECKING */

/* Set this to nonzero to fake an "X I/O error"
   on a particular display.  */

static struct x_display_info *XTread_socket_fake_io_error;

/* When we find no input here, we occasionally do a no-op command
   to verify that the X server is still running and we can still talk with it.
   We try all the open displays, one by one.
   This variable is used for cycling thru the displays.  */

static struct x_display_info *next_noop_dpyinfo;

/* Filter events for the current X input method.
   DPYINFO is the display this event is for.
   EVENT is the X event to filter.

   Returns non-zero if the event was filtered, caller shall not process
   this event further.
   Returns zero if event is wasn't filtered.  */

#ifdef HAVE_X_I18N
static int
x_filter_event (struct x_display_info *dpyinfo, XEvent *event)
{
  /* XFilterEvent returns non-zero if the input method has
   consumed the event.  We pass the frame's X window to
   XFilterEvent because that's the one for which the IC
   was created.  */

  struct frame *f1;

#if defined HAVE_XINPUT2 && defined USE_GTK
  bool xinput_event = false;
  if (dpyinfo->supports_xi2
      && event->type == GenericEvent
      && (event->xgeneric.extension
	  == dpyinfo->xi2_opcode)
      && ((event->xgeneric.evtype
	   == XI_KeyPress)
	  || (event->xgeneric.evtype
	      == XI_KeyRelease)))
    {
      f1 = x_any_window_to_frame (dpyinfo,
				  ((XIDeviceEvent *)
				   event->xcookie.data)->event);
      xinput_event = true;
    }
  else
#endif
    f1 = x_any_window_to_frame (dpyinfo,
				event->xclient.window);

#ifdef USE_GTK
  if (!x_gtk_use_native_input
      && !dpyinfo->prefer_native_input)
    {
#endif
      return XFilterEvent (event, f1 ? FRAME_X_WINDOW (f1) : None);
#ifdef USE_GTK
    }
  else if (f1 && (event->type == KeyPress
		  || event->type == KeyRelease
#ifdef HAVE_XINPUT2
		  || xinput_event
#endif
		  ))
    {
      bool result;

      block_input ();
      result = xg_filter_key (f1, event);
      unblock_input ();

      /* Clear `xg_pending_quit_event' so we don't end up reacting to quit
	 events sent outside the main event loop (i.e. those sent from
	 inside a popup menu event loop).  */

      if (popup_activated ())
	xg_pending_quit_event.kind = NO_EVENT;

      if (result && f1)
	/* There will probably be a GDK event generated soon, so
	   exercise the wire to make pselect return.  */
	XNoOp (FRAME_X_DISPLAY (f1));

      return result;
    }

  return 0;
#endif
}
#endif

#ifdef USE_GTK
/* This is the filter function invoked by the GTK event loop.
   It is invoked before the XEvent is translated to a GdkEvent,
   so we have a chance to act on the event before GTK.  */
static GdkFilterReturn
event_handler_gdk (GdkXEvent *gxev, GdkEvent *ev, gpointer data)
{
  XEvent *xev = (XEvent *) gxev;

  block_input ();
  if (current_count >= 0)
    {
      struct x_display_info *dpyinfo;

      dpyinfo = x_display_info_for_display (xev->xany.display);

#ifdef HAVE_X_I18N
      /* Filter events for the current X input method.
         GTK calls XFilterEvent but not for key press and release,
         so we do it here.  */
      if ((xev->type == KeyPress || xev->type == KeyRelease)
	  && dpyinfo
	  && x_filter_event (dpyinfo, xev))
	{
	  unblock_input ();
	  return GDK_FILTER_REMOVE;
	}
#elif USE_GTK
      if (dpyinfo && (dpyinfo->prefer_native_input
		      || x_gtk_use_native_input)
	  && (xev->type == KeyPress
#ifdef HAVE_XINPUT2
	      /* GTK claims cookies for us, so we don't have to claim
		 them here.  */
	      || (dpyinfo->supports_xi2
		  && xev->type == GenericEvent
		  && (xev->xgeneric.extension
		      == dpyinfo->xi2_opcode)
		  && ((xev->xgeneric.evtype
		       == XI_KeyPress)
		      || (xev->xgeneric.evtype
			  == XI_KeyRelease)))
#endif
	      ))
	{
	  struct frame *f;

#ifdef HAVE_XINPUT2
	  if (xev->type == GenericEvent)
	    f = x_any_window_to_frame (dpyinfo,
				       ((XIDeviceEvent *) xev->xcookie.data)->event);
	  else
#endif
	    f = x_any_window_to_frame (dpyinfo, xev->xany.window);

	  if (f && xg_filter_key (f, xev))
	    {
	      unblock_input ();
	      return GDK_FILTER_REMOVE;
	    }
	}
#endif

      if (! dpyinfo)
        current_finish = X_EVENT_NORMAL;
      else
	current_count
	  += handle_one_xevent (dpyinfo, xev, &current_finish,
				current_hold_quit);
    }
  else
    current_finish = x_dispatch_event (xev, xev->xany.display);

  unblock_input ();

  if (current_finish == X_EVENT_GOTO_OUT || current_finish == X_EVENT_DROP)
    return GDK_FILTER_REMOVE;

  return GDK_FILTER_CONTINUE;
}
#endif /* USE_GTK */


static void xembed_send_message (struct frame *f, Time,
                                 enum xembed_message,
                                 long detail, long data1, long data2);

static void
x_net_wm_state (struct frame *f, Window window)
{
  int value = FULLSCREEN_NONE;
  Lisp_Object lval = Qnil;
  bool sticky = false, shaded = false;

  x_get_current_wm_state (f, window, &value, &sticky, &shaded);

  switch (value)
    {
    case FULLSCREEN_WIDTH:
      lval = Qfullwidth;
      break;
    case FULLSCREEN_HEIGHT:
      lval = Qfullheight;
      break;
    case FULLSCREEN_BOTH:
      lval = Qfullboth;
      break;
    case FULLSCREEN_MAXIMIZED:
      lval = Qmaximized;
      break;
    }

  store_frame_param (f, Qfullscreen, lval);
  store_frame_param (f, Qsticky, sticky ? Qt : Qnil);
  store_frame_param (f, Qshaded, shaded ? Qt : Qnil);
}

/* Flip back buffers on F if it has undrawn content.  */

static void
x_flush_dirty_back_buffer_on (struct frame *f)
{
#ifdef HAVE_XDBE
  if (FRAME_GARBAGED_P (f)
      || buffer_flipping_blocked_p ()
      /* If the frame is not already up to date, do not flush buffers
	 on input, as that will result in flicker.  */
      || !FRAME_X_COMPLETE_P (f)
      || !FRAME_X_NEED_BUFFER_FLIP (f))
    return;

  show_back_buffer (f);
#endif
}

#ifdef HAVE_GTK3
void
x_scroll_bar_configure (GdkEvent *event)
{
  XEvent configure;
  GdkDisplay *gdpy;
  Display *dpy;

  configure.xconfigure.type = ConfigureNotify;
  configure.xconfigure.serial = 0;
  configure.xconfigure.send_event = event->configure.send_event;
  configure.xconfigure.x = event->configure.x;
  configure.xconfigure.y = event->configure.y;
  configure.xconfigure.width = event->configure.width;
  configure.xconfigure.height = event->configure.height;
  configure.xconfigure.border_width = 0;
  configure.xconfigure.event = GDK_WINDOW_XID (event->configure.window);
  configure.xconfigure.window = GDK_WINDOW_XID (event->configure.window);
  configure.xconfigure.above = None;
  configure.xconfigure.override_redirect = False;

  gdpy = gdk_window_get_display (event->configure.window);
  dpy = gdk_x11_display_get_xdisplay (gdpy);

  x_dispatch_event (&configure, dpy);
}
#endif

/**
  mouse_or_wdesc_frame: When not dropping and the mouse was grabbed
  for DPYINFO, return the frame where the mouse was seen last.  If
  there's no such frame, return the frame according to WDESC.  When
  dropping, return the frame according to WDESC.  If there's no such
  frame and the mouse was grabbed for DPYINFO, return the frame where
  the mouse was seen last.  In either case, never return a tooltip
  frame.  */
static struct frame *
mouse_or_wdesc_frame (struct x_display_info *dpyinfo, int wdesc)
{
  struct frame *lm_f = (gui_mouse_grabbed (dpyinfo)
			? dpyinfo->last_mouse_frame
			: NULL);

  if (lm_f && !EQ (track_mouse, Qdropping)
      && !EQ (track_mouse, Qdrag_source))
    return lm_f;
  else
    {
      struct frame *w_f = x_window_to_frame (dpyinfo, wdesc);

      /* Do not return a tooltip frame.  */
      if (!w_f || FRAME_TOOLTIP_P (w_f))
	return EQ (track_mouse, Qdropping) ? lm_f : NULL;
      else
	/* When dropping it would be probably nice to raise w_f
	   here.  */
	return w_f;
    }
}

static void
x_dnd_compute_tip_xy (int *root_x, int *root_y, Lisp_Object attributes)
{
  Lisp_Object monitor, geometry;
  int min_x, min_y, max_x, max_y;
  int width, height;

  width = FRAME_PIXEL_WIDTH (XFRAME (tip_frame));
  height = FRAME_PIXEL_HEIGHT (XFRAME (tip_frame));

  max_y = -1;

  /* Try to determine the monitor where the mouse pointer is and
     its geometry.  See bug#22549.  */
  while (CONSP (attributes))
    {
      monitor = XCAR (attributes);
      geometry = assq_no_quit (Qgeometry, monitor);

      if (CONSP (geometry))
	{
	  min_x = XFIXNUM (Fnth (make_fixnum (1), geometry));
	  min_y = XFIXNUM (Fnth (make_fixnum (2), geometry));
	  max_x = min_x + XFIXNUM (Fnth (make_fixnum (3), geometry));
	  max_y = min_y + XFIXNUM (Fnth (make_fixnum (4), geometry));

	  if (min_x <= *root_x && *root_x < max_x
	      && min_y <= *root_y && *root_y < max_y)
	    break;

	  max_y = -1;
	}

      attributes = XCDR (attributes);
    }

  /* It was not possible to determine the monitor's geometry, so we
     assign some sane defaults here: */
  if (max_y < 0)
    {
      min_x = 0;
      min_y = 0;
      max_x = x_display_pixel_width (FRAME_DISPLAY_INFO (x_dnd_frame));
      max_y = x_display_pixel_height (FRAME_DISPLAY_INFO (x_dnd_frame));
    }

  if (*root_y + XFIXNUM (tip_dy) <= min_y)
    *root_y = min_y; /* Can happen for negative dy */
  else if (*root_y + XFIXNUM (tip_dy) + height <= max_y)
    /* It fits below the pointer */
    *root_y += XFIXNUM (tip_dy);
  else if (height + XFIXNUM (tip_dy) + min_y <= *root_y)
    /* It fits above the pointer.  */
    *root_y -= height + XFIXNUM (tip_dy);
  else
    /* Put it on the top.  */
    *root_y = min_y;

  if (*root_x + XFIXNUM (tip_dx) <= min_x)
    *root_x = 0; /* Can happen for negative dx */
  else if (*root_x + XFIXNUM (tip_dx) + width <= max_x)
    /* It fits to the right of the pointer.  */
    *root_x += XFIXNUM (tip_dx);
  else if (width + XFIXNUM (tip_dx) + min_x <= *root_x)
    /* It fits to the left of the pointer.  */
    *root_x -= width + XFIXNUM (tip_dx);
  else
    /* Put it left justified on the screen -- it ought to fit that way.  */
    *root_x = min_x;
}

static void
x_dnd_update_tooltip_position (int root_x, int root_y)
{
  struct frame *tip_f;

  if (!x_dnd_in_progress || !x_dnd_update_tooltip)
    return;

  if (!FRAMEP (tip_frame))
    return;

  tip_f = XFRAME (tip_frame);

  if (!FRAME_LIVE_P (tip_f)
      || !FRAME_VISIBLE_P (tip_f)
      || (FRAME_X_DISPLAY (tip_f)
	  != FRAME_X_DISPLAY (x_dnd_frame)))
    return;

  if (tip_window != None
      && FIXNUMP (tip_dx) && FIXNUMP (tip_dy))
    {
      x_dnd_compute_tip_xy (&root_x, &root_y,
			    x_dnd_monitors);

      if (x_dnd_last_tooltip_valid
	  && root_x == x_dnd_last_tooltip_x
	  && root_y == x_dnd_last_tooltip_y)
	return;

      x_dnd_last_tooltip_x = root_x;
      x_dnd_last_tooltip_y = root_y;
      x_dnd_last_tooltip_valid = true;

      XMoveWindow (FRAME_X_DISPLAY (x_dnd_frame),
		   tip_window, root_x, root_y);
    }
}

static void
x_dnd_update_tooltip_now (void)
{
  int root_x, root_y;
  Window root, child;
  int win_x, win_y;
  unsigned int mask;
  Bool rc;
  struct x_display_info *dpyinfo;

  if (!x_dnd_in_progress || !x_dnd_update_tooltip)
    return;

  dpyinfo = FRAME_DISPLAY_INFO (x_dnd_frame);

#ifndef HAVE_XINPUT2
  rc = XQueryPointer (dpyinfo->display,
		      dpyinfo->root_window,
		      &root, &child, &root_x,
		      &root_y, &win_x, &win_y,
		      &mask);
#else
  rc = x_query_pointer_1 (dpyinfo, x_dnd_pointer_device,
			  dpyinfo->root_window,
			  &root, &child, &root_x,
			  &root_y, &win_x, &win_y,
			  &mask);
#endif

  if (rc)
    x_dnd_update_tooltip_position (root_x, root_y);
}

/* Get the window underneath the pointer, see if it moved, and update
   the DND state accordingly.  */
static void
x_dnd_update_state (struct x_display_info *dpyinfo, Time timestamp)
{
  int root_x, root_y, dummy_x, dummy_y, target_proto, motif_style;
  unsigned int dummy_mask;
  Window dummy, dummy_child, target, toplevel;
  xm_top_level_leave_message lmsg;
  xm_top_level_enter_message emsg;
  xm_drag_motion_message dmsg;
  xm_drop_start_message dsmsg;
  bool was_frame;

  if (x_query_pointer_1 (dpyinfo,
#ifdef HAVE_XINPUT2
			 x_dnd_pointer_device,
#else
			 -1,
#endif
			 dpyinfo->root_window,
			 &dummy, &dummy_child,
			 &root_x, &root_y,
			 &dummy_x, &dummy_y,
			 &dummy_mask))
    {
      target = x_dnd_get_target_window (dpyinfo, root_x,
					root_y, &target_proto,
					&motif_style, &toplevel,
					&was_frame);

      if (toplevel != x_dnd_last_seen_toplevel)
	{
	  if (toplevel != FRAME_OUTER_WINDOW (x_dnd_frame)
	      && x_dnd_return_frame == 1)
	    x_dnd_return_frame = 2;

	  if (x_dnd_return_frame == 2
	      && x_any_window_to_frame (dpyinfo, toplevel))
	    {
	      if (x_dnd_last_seen_window != None
		  && x_dnd_last_protocol_version != -1
		  && x_dnd_last_seen_window != FRAME_OUTER_WINDOW (x_dnd_frame))
		x_dnd_send_leave (x_dnd_frame, x_dnd_last_seen_window,
				  x_dnd_last_seen_toplevel);
	      else if (x_dnd_last_seen_window != None
		       && XM_DRAG_STYLE_IS_DYNAMIC (x_dnd_last_motif_style)
		       && !x_dnd_disable_motif_drag
		       && x_dnd_last_seen_window != FRAME_OUTER_WINDOW (x_dnd_frame))
		{
		  if (!x_dnd_motif_setup_p)
		    xm_setup_drag_info (dpyinfo, x_dnd_frame);

		  lmsg.reason = XM_DRAG_REASON (XM_DRAG_ORIGINATOR_INITIATOR,
						XM_DRAG_REASON_TOP_LEVEL_LEAVE);
		  lmsg.byteorder = XM_BYTE_ORDER_CUR_FIRST;
		  lmsg.zero = 0;
		  lmsg.timestamp = timestamp;
		  lmsg.source_window = FRAME_X_WINDOW (x_dnd_frame);

		  if (x_dnd_motif_setup_p)
		    xm_send_top_level_leave_message (dpyinfo, FRAME_X_WINDOW (x_dnd_frame),
						     x_dnd_last_seen_window, &lmsg);
		}

	      x_dnd_end_window = x_dnd_last_seen_window;
	      x_dnd_last_seen_window = None;
	      x_dnd_last_seen_toplevel = None;
	      x_dnd_in_progress = false;
	      x_dnd_return_frame_object
		= x_any_window_to_frame (dpyinfo, toplevel);
	      x_dnd_return_frame = 3;
	      x_dnd_waiting_for_finish = false;
	      target = None;
	    }
	}

      if (target != x_dnd_last_seen_window)
	{
	  if (x_dnd_last_seen_window != None
	      && x_dnd_last_protocol_version != -1
	      && x_dnd_last_seen_window != FRAME_OUTER_WINDOW (x_dnd_frame))
	    x_dnd_send_leave (x_dnd_frame, x_dnd_last_seen_window,
			      x_dnd_last_seen_toplevel);
	  else if (x_dnd_last_seen_window != None
		   && XM_DRAG_STYLE_IS_DYNAMIC (x_dnd_last_motif_style)
		   && !x_dnd_disable_motif_drag
		   && x_dnd_last_seen_window != FRAME_OUTER_WINDOW (x_dnd_frame))
	    {
	      if (!x_dnd_motif_setup_p)
		xm_setup_drag_info (dpyinfo, x_dnd_frame);

	      lmsg.reason = XM_DRAG_REASON (XM_DRAG_ORIGINATOR_INITIATOR,
					    XM_DRAG_REASON_TOP_LEVEL_LEAVE);
	      lmsg.byteorder = XM_BYTE_ORDER_CUR_FIRST;
	      lmsg.zero = 0;
	      lmsg.timestamp = timestamp;
	      lmsg.source_window = FRAME_X_WINDOW (x_dnd_frame);

	      if (x_dnd_motif_setup_p)
		xm_send_top_level_leave_message (dpyinfo, FRAME_X_WINDOW (x_dnd_frame),
						 x_dnd_last_seen_window, &lmsg);
	    }

	  x_dnd_action = None;
	  x_dnd_last_seen_toplevel = toplevel;
	  x_dnd_last_seen_window = target;
	  x_dnd_last_protocol_version = target_proto;
	  x_dnd_last_motif_style = motif_style;
	  x_dnd_last_window_is_frame = was_frame;

	  if (target != None && x_dnd_last_protocol_version != -1)
	    x_dnd_send_enter (x_dnd_frame, target, x_dnd_last_seen_toplevel,
			      x_dnd_last_protocol_version);
	  else if (target != None && XM_DRAG_STYLE_IS_DYNAMIC (x_dnd_last_motif_style)
		   && !x_dnd_disable_motif_drag)
	    {
	      if (!x_dnd_motif_setup_p)
		xm_setup_drag_info (dpyinfo, x_dnd_frame);

	      emsg.reason = XM_DRAG_REASON (XM_DRAG_ORIGINATOR_INITIATOR,
					    XM_DRAG_REASON_TOP_LEVEL_ENTER);
	      emsg.byteorder = XM_BYTE_ORDER_CUR_FIRST;
	      emsg.zero = 0;
	      emsg.timestamp = timestamp;
	      emsg.source_window = FRAME_X_WINDOW (x_dnd_frame);
	      emsg.index_atom = x_dnd_motif_atom;

	      if (x_dnd_motif_setup_p)
		xm_send_top_level_enter_message (dpyinfo, FRAME_X_WINDOW (x_dnd_frame),
						 target, &emsg);
	    }
	}
      else
	x_dnd_last_seen_toplevel = toplevel;

      if (x_dnd_last_window_is_frame && target != None)
	x_dnd_note_self_position (dpyinfo, target, root_x, root_y);
      else if (x_dnd_last_protocol_version != -1 && target != None)
	x_dnd_send_position (x_dnd_frame, target,
			     x_dnd_last_seen_toplevel,
			     x_dnd_last_protocol_version,
			     root_x, root_y,
			     x_dnd_selection_timestamp,
			     x_dnd_wanted_action, 0,
#ifdef HAVE_XKB
			     x_dnd_keyboard_state
#else
			     0
#endif
			     );
      else if (XM_DRAG_STYLE_IS_DYNAMIC (x_dnd_last_motif_style) && target != None
	       && !x_dnd_disable_motif_drag)
	{
	  if (!x_dnd_motif_setup_p)
	    xm_setup_drag_info (dpyinfo, x_dnd_frame);

	  dmsg.reason = XM_DRAG_REASON (XM_DRAG_ORIGINATOR_INITIATOR,
					XM_DRAG_REASON_DRAG_MOTION);
	  dmsg.byteorder = XM_BYTE_ORDER_CUR_FIRST;
	  dmsg.side_effects
	    = XM_DRAG_SIDE_EFFECT (xm_side_effect_from_action (dpyinfo,
							       x_dnd_wanted_action),
				   XM_DROP_SITE_VALID, x_dnd_motif_operations,
				   (!x_dnd_xm_use_help
				    ? XM_DROP_ACTION_DROP
				    : XM_DROP_ACTION_DROP_HELP));
	  dmsg.timestamp = timestamp;
	  dmsg.x = root_x;
	  dmsg.y = root_y;

	  if (x_dnd_motif_setup_p)
	    xm_send_drag_motion_message (dpyinfo, FRAME_X_WINDOW (x_dnd_frame),
					 target, &dmsg);
	}

      x_dnd_update_tooltip_position (root_x, root_y);
    }
  /* The pointer moved out of the screen.  */
  else if (x_dnd_last_protocol_version != -1)
    {
      if (x_dnd_last_seen_window != None
	  && x_dnd_last_protocol_version != -1)
	x_dnd_send_leave (x_dnd_frame,
			  x_dnd_last_seen_window,
			  x_dnd_last_seen_toplevel);
      else if (x_dnd_last_seen_window != None
	       && !XM_DRAG_STYLE_IS_DROP_ONLY (x_dnd_last_motif_style)
	       && x_dnd_last_motif_style != XM_DRAG_STYLE_NONE
	       && x_dnd_motif_setup_p)
	{
	  dsmsg.reason = XM_DRAG_REASON (XM_DRAG_ORIGINATOR_INITIATOR,
					 XM_DRAG_REASON_DROP_START);
	  dmsg.byteorder = XM_BYTE_ORDER_CUR_FIRST;
	  dsmsg.timestamp = timestamp;
	  dsmsg.side_effects
	    = XM_DRAG_SIDE_EFFECT (xm_side_effect_from_action (dpyinfo,
							       x_dnd_wanted_action),
				   XM_DROP_SITE_VALID, x_dnd_motif_operations,
				   XM_DROP_ACTION_DROP_CANCEL);
	  dsmsg.x = 0;
	  dsmsg.y = 0;
	  dsmsg.index_atom = x_dnd_motif_atom;
	  dsmsg.source_window = FRAME_X_WINDOW (x_dnd_frame);

	  x_dnd_send_xm_leave_for_drop (dpyinfo, x_dnd_frame,
					x_dnd_last_seen_window, timestamp);
	  xm_send_drop_message (dpyinfo, FRAME_X_WINDOW (x_dnd_frame),
				x_dnd_last_seen_window, &dsmsg);
	}

      x_dnd_end_window = x_dnd_last_seen_window;
      x_dnd_last_seen_window = None;
      x_dnd_last_seen_toplevel = None;
      x_dnd_in_progress = false;
      x_dnd_waiting_for_finish = false;
      x_dnd_frame = NULL;
    }
}

int
x_display_pixel_height (struct x_display_info *dpyinfo)
{
  if (dpyinfo->screen_height)
    return dpyinfo->screen_height;

  return HeightOfScreen (dpyinfo->screen);
}

int
x_display_pixel_width (struct x_display_info *dpyinfo)
{
  if (dpyinfo->screen_width)
    return dpyinfo->screen_width;

  return WidthOfScreen (dpyinfo->screen);
}

/* Handle events from each display until CELL's car becomes non-nil,
   or TIMEOUT elapses.  */
void
x_wait_for_cell_change (Lisp_Object cell, struct timespec timeout)
{
  struct x_display_info *dpyinfo;
  fd_set fds;
  int fd, maxfd;
#ifndef USE_GTK
  int finish, rc;
  XEvent event;
  fd_set rfds;
#endif
  struct input_event hold_quit;
  struct timespec current, at;

  at = timespec_add (current_timespec (), timeout);

#ifndef USE_GTK
  FD_ZERO (&rfds);
  rc = -1;
#endif

  while (true)
    {
      FD_ZERO (&fds);
      maxfd = -1;

      for (dpyinfo = x_display_list; dpyinfo;
	   dpyinfo = dpyinfo->next)
	{
	  fd = ConnectionNumber (dpyinfo->display);

#ifndef USE_GTK
	  if ((rc < 0 || FD_ISSET (fd, &rfds))
	      /* If pselect failed, the erroring display's IO error
		 handler will eventually be called.  */
	      && XPending (dpyinfo->display))
	    {
	      while (XPending (dpyinfo->display))
		{
		  EVENT_INIT (hold_quit);

		  XNextEvent (dpyinfo->display, &event);
		  handle_one_xevent (dpyinfo, &event,
				     &finish, &hold_quit);

		  if (!NILP (XCAR (cell)))
		    return;

		  if (finish == X_EVENT_GOTO_OUT)
		    break;

		  /* Make us quit now.  */
		  if (hold_quit.kind != NO_EVENT)
		    kbd_buffer_store_event (&hold_quit);
		}
	    }
#endif

	  if (fd > maxfd)
	    maxfd = fd;

	  eassert (fd < FD_SETSIZE);
	  FD_SET (fd, &fds);
	}

      /* Prevent events from being lost (from GTK's point of view) by
	 using GDK to run the event loop.  */
#ifdef USE_GTK
      while (gtk_events_pending ())
	{
	  EVENT_INIT (hold_quit);
	  current_count = 0;
	  current_hold_quit = &hold_quit;
	  current_finish = X_EVENT_NORMAL;

	  gtk_main_iteration ();

	  current_count = -1;
	  current_hold_quit = NULL;

	  /* Make us quit now.  */
	  if (hold_quit.kind != NO_EVENT)
	    kbd_buffer_store_event (&hold_quit);

	  if (!NILP (XCAR (cell)))
	    return;

	  if (current_finish == X_EVENT_GOTO_OUT)
	    break;
	}
#endif

      eassert (maxfd >= 0);

      current = current_timespec ();

      if (timespec_cmp (at, current) < 0
	  || !NILP (XCAR (cell)))
	return;

      timeout = timespec_sub (at, current);

#ifndef USE_GTK
      rc = pselect (maxfd + 1, &fds, NULL, NULL, &timeout, NULL);

      if (rc >= 0)
	rfds = fds;
#else
      pselect (maxfd + 1, &fds, NULL, NULL, &timeout, NULL);
#endif
    }
}

/* Find whether or not an undelivered MONITORS_CHANGED_EVENT is
   already on the event queue.  DPYINFO is the display any such event
   must apply to.  */

static bool
x_find_monitors_changed_event (struct x_display_info *dpyinfo)
{
  union buffered_input_event *event;

  event = kbd_fetch_ptr;

  while (event != kbd_store_ptr)
    {
      if (event->ie.kind == MONITORS_CHANGED_EVENT
	  && XTERMINAL (event->ie.arg) == dpyinfo->terminal)
	return true;

      event = X_NEXT_KBD_EVENT (event);
    }

  return false;
}

#ifdef USE_GTK
static void
x_monitors_changed_cb (GdkScreen *gscr, gpointer user_data)
{
  struct x_display_info *dpyinfo;
  struct input_event ie;
  Lisp_Object current_monitors, terminal;
  GdkDisplay *gdpy;
  Display *dpy;

  gdpy = gdk_screen_get_display (gscr);
  dpy = gdk_x11_display_get_xdisplay (gdpy);
  dpyinfo = x_display_info_for_display (dpy);

  if (!dpyinfo)
    return;

  if (x_find_monitors_changed_event (dpyinfo))
    return;

  XSETTERMINAL (terminal, dpyinfo->terminal);

  current_monitors
    = Fx_display_monitor_attributes_list (terminal);

  if (NILP (Fequal (current_monitors,
		    dpyinfo->last_monitor_attributes_list)))
    {
      EVENT_INIT (ie);
      ie.kind = MONITORS_CHANGED_EVENT;
      ie.arg = terminal;

      kbd_buffer_store_event (&ie);

      if (x_dnd_in_progress && x_dnd_update_tooltip)
	x_dnd_monitors = current_monitors;

      x_dnd_update_tooltip_now ();
    }

  dpyinfo->last_monitor_attributes_list = current_monitors;
}
#endif

/* Extract the root window coordinates from the client message EVENT
   if it is a message that we already understand.  Return false if the
   event was not understood.  */
static bool
x_coords_from_dnd_message (struct x_display_info *dpyinfo,
			   XEvent *event, int *x_out, int *y_out)
{
  xm_drag_motion_message dmsg;
  xm_drag_motion_reply dreply;
  xm_drop_start_message smsg;
  xm_drop_start_reply reply;
  unsigned long kde_data;

  if (event->type != ClientMessage)
    return false;

  if (event->xclient.message_type == dpyinfo->Xatom_XdndPosition)
    {
      if (event->xclient.format != 32)
	return false;

      *x_out = (((unsigned long) event->xclient.data.l[2]) >> 16
		& 0xffff);
      *y_out = (event->xclient.data.l[2] & 0xffff);

      return true;
    }

  if ((event->xclient.message_type
       == dpyinfo->Xatom_MOTIF_DRAG_AND_DROP_MESSAGE)
      && event->xclient.format == 8)
    {
      if (!xm_read_drag_motion_message (event, &dmsg))
	{
	  *x_out = dmsg.x;
	  *y_out = dmsg.y;

	  return true;
	}
      else if (!xm_read_drag_motion_reply (event, &dreply))
	{
	  *x_out = dreply.better_x;
	  *y_out = dreply.better_y;

	  return true;
	}
      else if (!xm_read_drop_start_message (event, &smsg))
	{
	  *x_out = smsg.x;
	  *y_out = smsg.y;

	  return true;
	}
      else if (!xm_read_drop_start_reply (event, &reply))
	{
	  *x_out = reply.better_x;
	  *y_out = reply.better_y;

	  return true;
	}
    }

  if (((event->xclient.message_type
	== dpyinfo->Xatom_DndProtocol)
       || (event->xclient.message_type
	   == dpyinfo->Xatom_DND_PROTOCOL))
      && event->xclient.format == 32
      /* Check that the version of the old KDE protocol is new
	 enough to include coordinates.  */
      && event->xclient.data.l[4])
    {
      kde_data = (unsigned long) event->xclient.data.l[3];

      *x_out = (kde_data & 0xffff);
      *y_out = (kde_data >> 16 & 0xffff);

      return true;
    }

  return false;
}

static void
x_handle_wm_state (struct frame *f, struct input_event *ie)
{
  struct x_display_info *dpyinfo;
  Atom type;
  int format;
  unsigned long nitems, bytes_after;
  unsigned char *data;
  unsigned long *state;

  data = NULL;
  dpyinfo = FRAME_DISPLAY_INFO (f);

  if (XGetWindowProperty (FRAME_X_DISPLAY (f), FRAME_OUTER_WINDOW (f),
			  dpyinfo->Xatom_wm_state, 0, 2, False,
			  AnyPropertyType, &type, &format, &nitems,
			  &bytes_after, &data) != Success)
    return;

  if (!data || nitems != 2 || format != 32)
    {
      if (data)
	XFree (data);

      return;
    }

  state = (unsigned long *) data;

  if (state[0] == NormalState && FRAME_ICONIFIED_P (f))
    {
      /* The frame has been deiconified.  It has not been withdrawn
	 and is now visible.  */
      SET_FRAME_VISIBLE (f, 1);
      SET_FRAME_ICONIFIED (f, false);
      f->output_data.x->has_been_visible = true;

      ie->kind = DEICONIFY_EVENT;
      XSETFRAME (ie->frame_or_window, f);
    }
  else if (state[0] == IconicState
	   /* _NET_WM_STATE_HIDDEN should be used if the window
	      manager supports that.  */
	   && !x_wm_supports (f, dpyinfo->Xatom_net_wm_state_hidden))
    {
      /* The frame is actually iconified right now.  Mark it as
	 such.  */

      SET_FRAME_VISIBLE (f, 0);
      SET_FRAME_ICONIFIED (f, true);

      ie->kind = ICONIFY_EVENT;
      XSETFRAME (ie->frame_or_window, f);
    }

  /* state[0] can also be WithdrawnState, meaning that the window has
     been withdrawn and is no longer iconified.  However, Emacs sets
     the correct flags upon withdrawing the window, so there is no
     need to do anything here.  */

  XFree (data);
}

#ifdef HAVE_XFIXES

static bool
x_handle_selection_monitor_event (struct x_display_info *dpyinfo,
				  const XEvent *event)
{
  XFixesSelectionNotifyEvent *notify;
  int i;

  notify = (XFixesSelectionNotifyEvent *) event;

  if (notify->window != dpyinfo->selection_tracking_window)
    return false;

  for (i = 0; i < dpyinfo->n_monitored_selections; ++i)
    {
      /* We don't have to keep track of timestamps here.  */
      if (notify->selection == dpyinfo->monitored_selections[i].name)
	dpyinfo->monitored_selections[i].owner = notify->owner;
    }

  return true;
}

Window
x_find_selection_owner (struct x_display_info *dpyinfo, Atom selection)
{
  int i;

  for (i = 0; i < dpyinfo->n_monitored_selections; ++i)
    {
      if (selection == dpyinfo->monitored_selections[i].name)
	return dpyinfo->monitored_selections[i].owner;
    }

  return X_INVALID_WINDOW;
}

#endif

/* Handles the XEvent EVENT on display DPYINFO.

   *FINISH is X_EVENT_GOTO_OUT if caller should stop reading events.
   *FINISH is zero if caller should continue reading events.
   *FINISH is X_EVENT_DROP if event should not be passed to the toolkit.
   *EVENT is unchanged unless we're processing KeyPress event.

   We return the number of characters stored into the buffer.  */

static int
handle_one_xevent (struct x_display_info *dpyinfo,
#ifndef HAVE_XINPUT2
		   const XEvent *event,
#else
		   XEvent *event,
#endif
		   int *finish, struct input_event *hold_quit)
{
  union buffered_input_event inev;
  int count = 0;
  int do_help = 0;
#ifdef HAVE_XINPUT2
  struct xi_device_t *gen_help_device;
  Time gen_help_time UNINIT;
#endif
  ptrdiff_t nbytes = 0;
  struct frame *any, *f = NULL, *mouse_frame;
  Mouse_HLInfo *hlinfo = &dpyinfo->mouse_highlight;
  /* This holds the state XLookupString needs to implement dead keys
     and other tricks known as "compose processing".  _X Window System_
     says that a portable program can't use this, but Stephen Gildea assures
     me that letting the compiler initialize it to zeros will work okay.  */
  static XComposeStatus compose_status;
  XEvent configureEvent;
  XEvent next_event;
  Lisp_Object coding;
#if defined USE_X_TOOLKIT && defined HAVE_XINPUT2
  /* Some XInput 2 events are important for Motif and Lucid menu bars
     to work correctly, so they must be translated into core events
     before being passed to XtDispatchEvent.  */
  bool use_copy = false;
  XEvent copy;
#elif defined USE_GTK && !defined HAVE_GTK3 && defined HAVE_XINPUT2
  GdkEvent *copy = NULL;
  GdkDisplay *gdpy = gdk_x11_lookup_xdisplay (dpyinfo->display);
#endif
  int dx, dy;

  /* Avoid warnings when SAFE_ALLOCA is not actually used.  */
#if defined HAVE_XINPUT2 || defined HAVE_XKB || defined HAVE_X_I18N
  USE_SAFE_ALLOCA;
#endif

  /* This function is not reentrant, so input should be blocked before
     it is called.  */

  if (!input_blocked_p ())
    emacs_abort ();

  *finish = X_EVENT_NORMAL;

  EVENT_INIT (inev.ie);
  inev.ie.kind = NO_EVENT;
  inev.ie.arg = Qnil;
#ifdef HAVE_XINPUT2
  gen_help_device = NULL;
#endif

  /* Ignore events coming from various extensions, such as XFIXES and
     XKB.  */
  if (event->type < LASTEvent)
    {
#ifdef HAVE_XINPUT2
      if (event->type != GenericEvent)
#endif
	any = x_any_window_to_frame (dpyinfo, event->xany.window);
#ifdef HAVE_XINPUT2
      else
	any = NULL;
#endif
    }
  else
    any = NULL;

  if (any && any->wait_event_type == event->type)
    any->wait_event_type = 0; /* Indicates we got it.  */

  switch (event->type)
    {
    case ClientMessage:
      {
	int rc;

	if (((x_dnd_in_progress
	      && FRAME_DISPLAY_INFO (x_dnd_frame) == dpyinfo)
	     || (x_dnd_waiting_for_finish
		 && FRAME_DISPLAY_INFO (x_dnd_finish_frame) == dpyinfo))
	    && event->xclient.message_type == dpyinfo->Xatom_XdndStatus)
	  {
	    Window target;
	    unsigned long r1, r2;
	    int root_x, root_y;
	    bool button;

	    target = event->xclient.data.l[0];

	    if (x_dnd_last_protocol_version != -1
		&& x_dnd_in_progress
		&& target == x_dnd_last_seen_toplevel
		/* The XDND documentation is not very clearly worded.
		   But this should be the correct behavior, since
		   "kDNDStatusSendHereFlag" in the reference
		   implementation is 2, and means the mouse rect
		   should be ignored.  */
		&& !(event->xclient.data.l[1] & 2))
	      {
		r1 = event->xclient.data.l[2];
		r2 = event->xclient.data.l[3];

		x_dnd_mouse_rect_target = target;
		x_dnd_mouse_rect.x = (r1 & 0xffff0000) >> 16;
		x_dnd_mouse_rect.y = (r1 & 0xffff);
		x_dnd_mouse_rect.width = (r2 & 0xffff0000) >> 16;
		x_dnd_mouse_rect.height = (r2 & 0xffff);
	      }
	    else
	      x_dnd_mouse_rect_target = None;

	    if (x_dnd_last_protocol_version != -1
		&& (x_dnd_in_progress
		    && target == x_dnd_last_seen_window))
	      {
		if (event->xclient.data.l[1] & 1)
		  {
		    if (x_dnd_last_protocol_version >= 2)
		      x_dnd_action = event->xclient.data.l[4];
		    else
		      x_dnd_action = dpyinfo->Xatom_XdndActionCopy;
		  }
		else
		  x_dnd_action = None;
	      }

	    /* Send any pending XdndPosition message.  */
	    if (x_dnd_waiting_for_status_window == target)
	      {
		if (x_dnd_pending_send_position.type != 0)
		  {
		    /* If the last XdndStatus specified a mouse
		       rectangle and this event falls inside, don't
		       send the event, but clear
		       x_dnd_waiting_for_status_window instead.  */

		    root_x = x_dnd_pending_send_position_root_x;
		    root_y = x_dnd_pending_send_position_root_y;
		    button = x_dnd_pending_send_position_button;

		    if (target == x_dnd_mouse_rect_target
			&& x_dnd_mouse_rect.width
			&& x_dnd_mouse_rect.height
			/* Ignore the mouse rectangle if we're
			   supposed to be sending a button press
			   instead.  */
			&& !button
			&& (root_x >= x_dnd_mouse_rect.x
			    && root_x < (x_dnd_mouse_rect.x
					 + x_dnd_mouse_rect.width)
			    && root_y >= x_dnd_mouse_rect.y
			    && root_y < (x_dnd_mouse_rect.y
					 + x_dnd_mouse_rect.height)))
		      x_dnd_waiting_for_status_window = None;
		    else
		      {
			x_ignore_errors_for_next_request (dpyinfo, 0);
			XSendEvent (dpyinfo->display, target,
				    False, NoEventMask,
				    &x_dnd_pending_send_position);
			x_stop_ignoring_errors (dpyinfo);
			x_dnd_pending_send_position.type = 0;

			/* Since we sent another XdndPosition message, we
			   have to wait for another one in reply, so don't
			   reset `x_dnd_waiting_for_status_window'
			   here.  */
		      }
		  }
		else
		  x_dnd_waiting_for_status_window = None;

		/* Send any pending drop if warranted.  */
		if (x_dnd_waiting_for_finish && x_dnd_need_send_drop
		    && x_dnd_waiting_for_status_window == None)
		  {
		    if (event->xclient.data.l[1] & 1)
		      {
			if (x_dnd_send_drop_proto >= 2)
			  x_dnd_action = event->xclient.data.l[4];
			else
			  x_dnd_action = dpyinfo->Xatom_XdndActionCopy;
		      }
		    else
		      x_dnd_action = None;

		    x_dnd_waiting_for_finish
		      = x_dnd_send_drop (x_dnd_finish_frame,
					 target,
					 x_dnd_last_seen_toplevel,
					 x_dnd_selection_timestamp,
					 x_dnd_send_drop_proto);
		  }
	      }

	    goto done;
	  }

	if (event->xclient.message_type == dpyinfo->Xatom_XdndFinished
	    && (x_dnd_waiting_for_finish && !x_dnd_waiting_for_motif_finish)
	    /* Also check that the display is correct, since
	       `x_dnd_pending_finish_target' could still be valid on
	       another X server.  */
	    && dpyinfo->display == x_dnd_finish_display
	    && event->xclient.data.l[0] == x_dnd_pending_finish_target)
	  {
	    x_dnd_waiting_for_finish = false;

	    if (x_dnd_waiting_for_finish_proto >= 5)
	      x_dnd_action = event->xclient.data.l[2];

	    if (x_dnd_waiting_for_finish_proto >= 5
		&& !(event->xclient.data.l[1] & 1))
	      x_dnd_action = None;

	    goto done;
	  }

	if ((event->xclient.message_type
	     == dpyinfo->Xatom_MOTIF_DRAG_AND_DROP_MESSAGE)
	    && x_dnd_waiting_for_finish
	    && x_dnd_waiting_for_motif_finish == 1
	    && dpyinfo == x_dnd_waiting_for_motif_finish_display)
	  {
	    xm_drop_start_reply reply;
	    uint16_t operation, status, action;

	    if (!xm_read_drop_start_reply (event, &reply))
	      {
		operation = XM_DRAG_SIDE_EFFECT_OPERATION (reply.side_effects);
		status = XM_DRAG_SIDE_EFFECT_SITE_STATUS (reply.side_effects);
		action = XM_DRAG_SIDE_EFFECT_DROP_ACTION (reply.side_effects);

		if (operation != XM_DRAG_MOVE
		    && operation != XM_DRAG_COPY
		    && XM_DRAG_OPERATION_IS_LINK (operation))
		  {
		    x_dnd_waiting_for_finish = false;
		    goto done;
		  }

		if (status != XM_DROP_SITE_VALID
		    || (action == XM_DROP_ACTION_DROP_CANCEL
			|| action == XM_DROP_ACTION_DROP_HELP))
		  {
		    x_dnd_waiting_for_finish = false;
		    goto done;
		  }

		switch (operation)
		  {
		  case XM_DRAG_MOVE:
		    x_dnd_action_symbol = QXdndActionMove;
		    break;

		  case XM_DRAG_COPY:
		    x_dnd_action_symbol = QXdndActionCopy;
		    break;

		    /* This means XM_DRAG_OPERATION_IS_LINK (operation).  */
		  default:
		    x_dnd_action_symbol = QXdndActionLink;
		    break;
		  }

		x_dnd_waiting_for_motif_finish = 2;
		goto done;
	      }
	  }

	if (event->xclient.message_type == dpyinfo->Xatom_EMACS_TMP
	    && event->xclient.format == 8)
	  {
	    /* This is actually an hourglass message.  Set whether or
	       not events from here on have the hourglass enabled.  */

	    if (any)
	      FRAME_X_OUTPUT (any)->hourglass_p = event->xclient.data.b[0];
	  }

        if (event->xclient.message_type == dpyinfo->Xatom_wm_protocols
            && event->xclient.format == 32)
          {
            if (event->xclient.data.l[0] == dpyinfo->Xatom_wm_take_focus)
              {
                /* Use the value returned by x_any_window_to_frame
		   because this could be the shell widget window
		   if the frame has no title bar.  */
                f = any;
#ifdef HAVE_X_I18N
                /* Not quite sure this is needed -pd */
                if (f && FRAME_XIC (f))
                  XSetICFocus (FRAME_XIC (f));
#endif
#if false
      /* Emacs sets WM hints whose `input' field is `true'.  This
	 instructs the WM to set the input focus automatically for
	 Emacs with a call to XSetInputFocus.  Setting WM_TAKE_FOCUS
	 tells the WM to send us a ClientMessage WM_TAKE_FOCUS after
	 it has set the focus.  So, XSetInputFocus below is not
	 needed.

	 The call to XSetInputFocus below has also caused trouble.  In
	 cases where the XSetInputFocus done by the WM and the one
	 below are temporally close (on a fast machine), the call
	 below can generate additional FocusIn events which confuse
	 Emacs.  */

                /* Since we set WM_TAKE_FOCUS, we must call
                   XSetInputFocus explicitly.  But not if f is null,
                   since that might be an event for a deleted frame.  */
                if (f)
                  {
                    Display *d = event->xclient.display;
                    /* Catch and ignore errors, in case window has been
                       iconified by a window manager such as GWM.  */
                    x_catch_errors (d);
                    XSetInputFocus (d, event->xclient.window,
                                    /* The ICCCM says this is
                                       the only valid choice.  */
                                    RevertToParent,
                                    event->xclient.data.l[1]);
                    x_uncatch_errors ();
                  }
                /* Not certain about handling scroll bars here */
#endif
		/* Set the provided time as the user time, which is
		   required for SetInputFocus to work correctly after
		   taking the input focus.  */

		/* Time can be sign extended if retrieved from a client message.
		   Make sure it is always 32 bits, or systems with 64-bit longs
		   will crash after 24 days of X server uptime.  (bug#59480) */
		x_display_set_last_user_time (dpyinfo, (event->xclient.data.l[1]
							& 0xffffffff),
					      true, true);
		goto done;
              }

            if (event->xclient.data.l[0] == dpyinfo->Xatom_wm_save_yourself)
              {
                /* Save state modify the WM_COMMAND property to
                   something which can reinstate us.  This notifies
                   the session manager, who's looking for such a
                   PropertyNotify.  Can restart processing when
                   a keyboard or mouse event arrives.  */
                /* If we have a session manager, don't set this.
                   KDE will then start two Emacsen, one for the
                   session manager and one for this. */
#ifdef HAVE_X_SM
                if (! x_session_have_connection ())
#endif
                  {
                    f = x_top_window_to_frame (dpyinfo,
                                               event->xclient.window);
                    /* This is just so we only give real data once
                       for a single Emacs process.  */
                    if (f == SELECTED_FRAME ())
                      XSetCommand (FRAME_X_DISPLAY (f),
                                   event->xclient.window,
                                   initial_argv, initial_argc);
                    else if (f)
                      XSetCommand (FRAME_X_DISPLAY (f),
                                   event->xclient.window,
                                   0, 0);
                  }
		goto done;
              }

            if (event->xclient.data.l[0] == dpyinfo->Xatom_wm_delete_window)
              {
                f = x_top_window_to_frame (dpyinfo,
					   event->xclient.window);

                if (!f)
		  goto OTHER; /* May be a dialog that is to be removed  */

		inev.ie.kind = DELETE_WINDOW_EVENT;
		inev.ie.timestamp = event->xclient.data.l[1];
		XSETFRAME (inev.ie.frame_or_window, f);
		goto done;
              }


	    if (event->xclient.data.l[0] == dpyinfo->Xatom_net_wm_ping
		/* Handling window stacking changes during
		   drag-and-drop requires Emacs to select for
		   SubstructureNotifyMask, which in turn causes the
		   message to be sent to Emacs itself using the event
		   mask specified by the EWMH.  To avoid an infinite
		   loop, make sure the client message's window is not
		   the root window if DND is in progress.  */
		&& (!(x_dnd_in_progress
		      || x_dnd_waiting_for_finish)
		    || event->xclient.window != dpyinfo->root_window)
		&& event->xclient.format == 32)
	      {
		XEvent send_event = *event;

		send_event.xclient.window = dpyinfo->root_window;
		XSendEvent (dpyinfo->display, dpyinfo->root_window, False,
			    SubstructureRedirectMask | SubstructureNotifyMask,
			    &send_event);

		*finish = X_EVENT_DROP;
		goto done;
	      }

#if defined HAVE_XSYNC
	    if (event->xclient.data.l[0] == dpyinfo->Xatom_net_wm_sync_request
		&& event->xclient.format == 32
		&& dpyinfo->xsync_supported_p)
	      {
		struct frame *f
		  = x_top_window_to_frame (dpyinfo,
					   event->xclient.window);
#if defined HAVE_GTK3
		GtkWidget *widget;
		GdkWindow *window;
		GdkFrameClock *frame_clock;
#endif

		if (f)
		  {
#ifndef HAVE_GTK3
		    if (event->xclient.data.l[4] == 0)
		      {
			XSyncIntsToValue (&FRAME_X_OUTPUT (f)->pending_basic_counter_value,
					  event->xclient.data.l[2], event->xclient.data.l[3]);
			FRAME_X_OUTPUT (f)->sync_end_pending_p = true;
		      }
		    else if (event->xclient.data.l[4] == 1)
		      {
			XSyncIntsToValue (&FRAME_X_OUTPUT (f)->resize_counter_value,
					  event->xclient.data.l[2],
					  event->xclient.data.l[3]);

			FRAME_X_OUTPUT (f)->ext_sync_end_pending_p = true;
		      }

		    *finish = X_EVENT_DROP;
#else
		    widget = FRAME_GTK_OUTER_WIDGET (f);
		    window = gtk_widget_get_window (widget);
		    eassert (window);

		    /* This could be a (former) child frame for which
		       frame synchronization was disabled.  Enable it
		       now.  */
		    gdk_x11_window_set_frame_sync_enabled (window, TRUE);

		    if (widget && !FRAME_X_OUTPUT (f)->xg_sync_end_pending_p)
		      {
			frame_clock = gdk_window_get_frame_clock (window);
			eassert (frame_clock);

			gdk_frame_clock_request_phase (frame_clock,
						       GDK_FRAME_CLOCK_PHASE_BEFORE_PAINT);
			FRAME_X_OUTPUT (f)->xg_sync_end_pending_p = true;
		      }
#endif
		    goto done;
		  }
	      }
#endif

	    goto done;
          }

        if (event->xclient.message_type == dpyinfo->Xatom_wm_configure_denied)
	  goto done;

        if (event->xclient.message_type == dpyinfo->Xatom_wm_window_moved)
          {
            int new_x, new_y;
	    f = x_window_to_frame (dpyinfo, event->xclient.window);

            new_x = event->xclient.data.s[0];
            new_y = event->xclient.data.s[1];

            if (f)
              {
                f->left_pos = new_x;
                f->top_pos = new_y;
              }
	    goto done;
          }

#ifdef X_TOOLKIT_EDITRES
        if (event->xclient.message_type == dpyinfo->Xatom_editres)
          {
	    f = any;
	    if (f)
	      {
		_XEditResCheckMessages (f->output_data.x->widget,
					NULL, (XEvent *) event, NULL);
		goto done;
	      }

	    goto OTHER;
          }
#endif /* X_TOOLKIT_EDITRES */

        if (event->xclient.message_type == dpyinfo->Xatom_DONE
	    || event->xclient.message_type == dpyinfo->Xatom_PAGE)
          {
            /* Ghostview job completed.  Kill it.  We could
               reply with "Next" if we received "Page", but we
               currently never do because we are interested in
               images, only, which should have 1 page.  */
	    f = x_window_to_frame (dpyinfo, event->xclient.window);
	    if (!f)
	      goto OTHER;
#ifndef USE_CAIRO
            Pixmap pixmap = (Pixmap) event->xclient.data.l[1];
	    /* FIXME: why does this sometimes generate a BadMatch
	       error?  */
	    x_catch_errors (dpyinfo->display);
            x_kill_gs_process (pixmap, f);
	    x_uncatch_errors ();
            expose_frame (f, 0, 0, 0, 0);
#endif	/* !USE_CAIRO */
	    goto done;
          }

#ifdef USE_TOOLKIT_SCROLL_BARS
        /* Scroll bar callbacks send a ClientMessage from which
           we construct an input_event.  */
        if (event->xclient.message_type == dpyinfo->Xatom_Scrollbar)
          {
	    /* Convert the scroll bar event to an input event using
	       the first window entered into the scroll bar event
	       queue. */
            x_scroll_bar_to_input_event (dpyinfo, event, &inev.ie);

	    *finish = X_EVENT_GOTO_OUT;
            goto done;
          }
        else if (event->xclient.message_type == dpyinfo->Xatom_Horizontal_Scrollbar)
          {
	    /* Convert the horizontal scroll bar event to an input
	       event using the first window entered into the scroll
	       bar event queue. */
            x_horizontal_scroll_bar_to_input_event (dpyinfo, event,
						    &inev.ie);

	    *finish = X_EVENT_GOTO_OUT;
            goto done;
          }
#endif /* USE_TOOLKIT_SCROLL_BARS */

	/* XEmbed messages from the embedder (if any).  */
        if (event->xclient.message_type == dpyinfo->Xatom_XEMBED)
          {
	    enum xembed_message msg = event->xclient.data.l[1];
	    if (msg == XEMBED_FOCUS_IN || msg == XEMBED_FOCUS_OUT)
	      x_detect_focus_change (dpyinfo, any, event, &inev.ie);

	    *finish = X_EVENT_GOTO_OUT;
            goto done;
          }

#if defined HAVE_XSYNC && !defined USE_GTK && defined HAVE_CLOCK_GETTIME
	/* These messages are sent by the compositing manager after a
	   frame is drawn under extended synchronization.  */
	if (event->xclient.message_type
	    == dpyinfo->Xatom_net_wm_frame_drawn)
	  {
	    if (any)
	      x_sync_handle_frame_drawn (dpyinfo, (XEvent *) event, any);

	    goto done;
	  }

	if (event->xclient.message_type
	    == dpyinfo->Xatom_net_wm_frame_timings)
	  goto done;
#endif

        if (xft_settings_event (dpyinfo, event))
	  goto done;

	f = any;
	/* We don't want to ever leak tooltip frames to Lisp code.  */
	if (!f || FRAME_TOOLTIP_P (f))
	  goto OTHER;

	/* These values are always used initialized, but GCC doesn't
	   know that.  */
	dx = 0;
	dy = 0;

	rc = x_coords_from_dnd_message (dpyinfo, (XEvent *) event,
					&dx, &dy);

	if (x_handle_dnd_message (f, &event->xclient, dpyinfo, &inev.ie,
				  rc, dx, dy))
	  *finish = X_EVENT_DROP;
      }
      break;

    case SelectionNotify:
#if defined USE_X_TOOLKIT || defined USE_GTK
      if (!x_window_to_frame (dpyinfo, event->xselection.requestor))
        goto OTHER;
#endif /* not USE_X_TOOLKIT and not USE_GTK */
#ifdef HAVE_GTK3
      /* GTK 3 apparently chokes on these events since they have no
	 associated device.  (bug#56869, another bug as well that I
	 can't find) */
      *finish = X_EVENT_DROP;
#endif
      x_handle_selection_notify (&event->xselection);
      break;

    case SelectionClear:	/* Someone has grabbed ownership.  */
#if defined USE_X_TOOLKIT || defined USE_GTK
      if (!x_window_to_frame (dpyinfo, event->xselectionclear.window))
        goto OTHER;
#endif /* not USE_X_TOOLKIT and not USE_GTK */
#ifdef HAVE_GTK3
      *finish = X_EVENT_DROP;
#endif
      {
        const XSelectionClearEvent *eventp = &event->xselectionclear;

	if (eventp->selection == dpyinfo->motif_drag_atom
	    && (eventp->time == CurrentTime
		|| dpyinfo->motif_drag_atom_time <= eventp->time))
	  dpyinfo->motif_drag_atom = None;

        inev.sie.kind = SELECTION_CLEAR_EVENT;
        SELECTION_EVENT_DPYINFO (&inev.sie) = dpyinfo;
        SELECTION_EVENT_SELECTION (&inev.sie) = eventp->selection;
        SELECTION_EVENT_TIME (&inev.sie) = eventp->time;

	if (x_use_pending_selection_requests)
	  {
	    x_push_selection_request (&inev.sie);
	    EVENT_INIT (inev.ie);
	  }
      }
      break;

    case SelectionRequest:	/* Someone wants our selection.  */
#ifdef USE_X_TOOLKIT
      if (!x_window_to_frame (dpyinfo, event->xselectionrequest.owner))
        goto OTHER;
#endif /* USE_X_TOOLKIT */
#ifdef HAVE_GTK3
      *finish = X_EVENT_DROP;
#endif
      {
	const XSelectionRequestEvent *eventp = &event->xselectionrequest;

	inev.sie.kind = SELECTION_REQUEST_EVENT;
	SELECTION_EVENT_DPYINFO (&inev.sie) = dpyinfo;
	SELECTION_EVENT_REQUESTOR (&inev.sie) = eventp->requestor;
	SELECTION_EVENT_SELECTION (&inev.sie) = eventp->selection;
	SELECTION_EVENT_TARGET (&inev.sie) = eventp->target;
	SELECTION_EVENT_PROPERTY (&inev.sie) = eventp->property;
	SELECTION_EVENT_TIME (&inev.sie) = eventp->time;

	/* If drag-and-drop or another modal dialog/menu is in
	   progress, handle SelectionRequest events immediately, by
	   pushing it onto the selection queue.  */

	if (x_use_pending_selection_requests)
	  {
	    x_push_selection_request (&inev.sie);
	    EVENT_INIT (inev.ie);
	  }

	if (x_dnd_waiting_for_finish
	    && x_dnd_waiting_for_motif_finish == 2
	    && dpyinfo == x_dnd_waiting_for_motif_finish_display
	    && eventp->selection == x_dnd_motif_atom
	    && (eventp->target == dpyinfo->Xatom_XmTRANSFER_SUCCESS
		|| eventp->target == dpyinfo->Xatom_XmTRANSFER_FAILURE))
	  {
	    x_dnd_waiting_for_finish = false;

	    /* If the transfer failed, then return nil from
	       `x-begin-drag'.  */
	    if (eventp->target == dpyinfo->Xatom_XmTRANSFER_FAILURE)
	      x_dnd_action = None;
	  }
      }
      break;

    case PropertyNotify:
      if (x_dnd_in_progress && x_dnd_use_toplevels
	  && dpyinfo == FRAME_DISPLAY_INFO (x_dnd_frame)
	  && event->xproperty.atom == dpyinfo->Xatom_wm_state)
	{
	  struct x_client_list_window *tem, *last;

	  for (last = NULL, tem = x_dnd_toplevels; tem;
	       last = tem, tem = tem->next)
	    {
	      if (tem->window == event->xproperty.window)
		{
		  Atom actual_type;
		  int actual_format, rc;
		  unsigned long nitems, bytesafter;
		  unsigned char *data = NULL;

		  if (event->xproperty.state == PropertyDelete)
		    {
		      if (!last)
			x_dnd_toplevels = tem->next;
		      else
			last->next = tem->next;

#ifdef HAVE_XSHAPE
		      if (tem->n_input_rects != -1)
			xfree (tem->input_rects);
		      if (tem->n_bounding_rects != -1)
			xfree (tem->bounding_rects);
#endif
		      xfree (tem);
		    }
		  else
		    {
		      x_catch_errors (dpyinfo->display);
		      rc = XGetWindowProperty (dpyinfo->display,
					       event->xproperty.window,
					       dpyinfo->Xatom_wm_state,
					       0, 2, False, AnyPropertyType,
					       &actual_type, &actual_format,
					       &nitems, &bytesafter, &data);

		      if (!x_had_errors_p (dpyinfo->display) && rc == Success && data
			  && nitems == 2 && actual_format == 32)
			tem->wm_state = ((unsigned long *) data)[0];
		      else
			tem->wm_state = WithdrawnState;

		      if (data)
			XFree (data);
		      x_uncatch_errors_after_check ();
		    }

		  x_dnd_update_state (dpyinfo, event->xproperty.time);
		  break;
		}
	    }
	}

      f = x_top_window_to_frame (dpyinfo, event->xproperty.window);
      if (f && event->xproperty.atom == dpyinfo->Xatom_net_wm_state
	  /* This should never happen with embedded windows.  */
	  && !FRAME_X_EMBEDDED_P (f))
	{
          bool not_hidden = x_handle_net_wm_state (f, &event->xproperty);

	  if (not_hidden && FRAME_ICONIFIED_P (f))
	    {
	      if (CONSP (frame_size_history))
		frame_size_history_plain
		  (f, build_string ("PropertyNotify, not hidden & iconified"));

	      /* Gnome shell does not iconify us when C-z is pressed.
		 It hides the frame.  So if our state says we aren't
		 hidden anymore, treat it as deiconified.  */
	      SET_FRAME_VISIBLE (f, 1);
	      SET_FRAME_ICONIFIED (f, false);

	      f->output_data.x->has_been_visible = true;
	      inev.ie.kind = DEICONIFY_EVENT;
#if defined USE_GTK && defined HAVE_GTK3
	      /* If GTK3 wants to impose some old size here (Bug#24526),
		 tell it that the current size is what we want.  */
	      if (f->was_invisible)
		{
		  xg_frame_set_char_size
		    (f, FRAME_PIXEL_WIDTH (f), FRAME_PIXEL_HEIGHT (f));
		  f->was_invisible = false;
		}
#endif
	      XSETFRAME (inev.ie.frame_or_window, f);
	    }
	  else if (!not_hidden && !FRAME_ICONIFIED_P (f))
	    {
	      if (CONSP (frame_size_history))
		frame_size_history_plain
		  (f, build_string ("PropertyNotify, hidden & not iconified"));

	      SET_FRAME_VISIBLE (f, 0);
	      SET_FRAME_ICONIFIED (f, true);
	      inev.ie.kind = ICONIFY_EVENT;
	      XSETFRAME (inev.ie.frame_or_window, f);
	    }
	}

      if (f && event->xproperty.atom == dpyinfo->Xatom_wm_state
	  && !FRAME_X_EMBEDDED_P (f) && !FRAME_PARENT_FRAME (f))
	/* Handle WM_STATE.  We use this to clear the iconified flag
	   on a frame if it is set.

	   GTK builds ignore deiconifying frames on FocusIn or Expose
	   by default, and cannot wait for the window manager to
	   remove _NET_WM_STATE_HIDDEN, as it is ambiguous when not
	   set.  Handling UnmapNotify also checks for
	   _NET_WM_STATE_HIDDEN, and thus suffers from the same
	   problem.  */
	x_handle_wm_state (f, &inev.ie);

      if (f && FRAME_X_OUTPUT (f)->alpha_identical_p
	  && (event->xproperty.atom
	      == dpyinfo->Xatom_net_wm_window_opacity))
	{
#ifndef USE_XCB
	  int rc, actual_format;
	  Atom actual;
	  unsigned char *tmp_data;
	  unsigned long n, left, opacity;

	  tmp_data = NULL;
#else
	  xcb_get_property_cookie_t opacity_cookie;
	  xcb_get_property_reply_t *opacity_reply;
	  xcb_generic_error_t *error;
	  bool rc;
	  uint32_t value;
#endif

	  if (event->xproperty.state == PropertyDelete)
	    {
	      f->alpha[0] = 1.0;
	      f->alpha[1] = 1.0;

	      store_frame_param (f, Qalpha, Qnil);
	    }
	  else
	    {
#ifndef USE_XCB
	      rc = XGetWindowProperty (dpyinfo->display, FRAME_OUTER_WINDOW (f),
				       dpyinfo->Xatom_net_wm_window_opacity,
				       0, 1, False, AnyPropertyType, &actual,
				       &actual_format, &n, &left, &tmp_data);

	      if (rc == Success && actual_format == 32
		  && (actual == XA_CARDINAL
		      /* Some broken programs set the opacity property
			 to those types, but window managers accept
			 them anyway.  */
		      || actual == XA_ATOM
		      || actual == XA_WINDOW) && n)
		{
		  opacity = *(unsigned long *) tmp_data & OPAQUE;
		  f->alpha[0] = (double) opacity / (double) OPAQUE;
		  f->alpha[1] = (double) opacity / (double) OPAQUE;

		  store_frame_param (f, Qalpha, make_float (f->alpha[0]));
		}
	      else
		{
		  f->alpha[0] = 1.0;
		  f->alpha[1] = 1.0;

		  store_frame_param (f, Qalpha, Qnil);
		}
#else
	      opacity_cookie
		= xcb_get_property (dpyinfo->xcb_connection, 0,
				    (xcb_window_t) FRAME_OUTER_WINDOW (f),
				    (xcb_atom_t) dpyinfo->Xatom_net_wm_window_opacity,
				    XA_CARDINAL, 0, 1);
	      opacity_reply
		= xcb_get_property_reply (dpyinfo->xcb_connection,
					  opacity_cookie, &error);

	      if (!opacity_reply)
		free (error), rc = false;
	      else
		rc = (opacity_reply->format == 32
		      && (opacity_reply->type == XA_CARDINAL
			  || opacity_reply->type == XA_ATOM
			  || opacity_reply->type == XA_WINDOW)
		      && (xcb_get_property_value_length (opacity_reply) >= 4));

	      if (rc)
		{
		  value = *(uint32_t *) xcb_get_property_value (opacity_reply);

		  f->alpha[0] = (double) value / (double) OPAQUE;
		  f->alpha[1] = (double) value / (double) OPAQUE;
		  store_frame_param (f, Qalpha, make_float (f->alpha[0]));
		}
	      else
		{
		  f->alpha[0] = 1.0;
		  f->alpha[1] = 1.0;

		  store_frame_param (f, Qalpha, Qnil);
		}

	      if (opacity_reply)
		free (opacity_reply);
#endif
	    }

#ifndef USE_XCB
	  if (tmp_data)
	    XFree (tmp_data);
#endif
	}

      if (event->xproperty.window == dpyinfo->root_window
	  && (event->xproperty.atom == dpyinfo->Xatom_net_client_list_stacking
	      || event->xproperty.atom == dpyinfo->Xatom_net_current_desktop)
	  && x_dnd_in_progress
	  && dpyinfo == FRAME_DISPLAY_INFO (x_dnd_frame))
	{
	  if (x_dnd_use_toplevels)
	    {
	      x_dnd_free_toplevels (true);

	      if (x_dnd_compute_toplevels (dpyinfo))
		{
		  x_dnd_free_toplevels (true);
		  x_dnd_use_toplevels = false;
		}
	    }

	  x_dnd_update_state (dpyinfo, event->xproperty.time);
	}

      x_handle_property_notify (&event->xproperty);
      xft_settings_event (dpyinfo, event);
      goto OTHER;

    case ReparentNotify:
      f = x_top_window_to_frame (dpyinfo, event->xreparent.window);
      if (f)
        {
#ifndef USE_GTK
	  if (FRAME_OUTPUT_DATA (f)->parent_desc
	      && FRAME_X_EMBEDDED_P (f))
	    {
	      /* The frame's embedder was destroyed; mark the frame as
		 no longer embedded, and map the frame.  An
		 UnmapNotify event must have previously been received
		 during the start of save-set processing.  */

	      FRAME_X_OUTPUT (f)->explicit_parent = false;

	      /* Remove the leftover XEMBED_INFO property.  */
	      XDeleteProperty (dpyinfo->display, FRAME_OUTER_WINDOW (f),
			       dpyinfo->Xatom_XEMBED_INFO);
	      x_make_frame_visible (f);
	    }
#endif

	  /* Maybe we shouldn't set this for child frames ??  */
	  f->output_data.x->parent_desc = event->xreparent.parent;

	  if (!FRAME_PARENT_FRAME (f))
	    {
	      x_real_positions (f, &f->left_pos, &f->top_pos);

	      /* Perhaps reparented due to a WM restart.  Reset this.  */
	      dpyinfo->wm_type = X_WMTYPE_UNKNOWN;
	      dpyinfo->net_supported_window = 0;

#ifndef USE_GTK
	      /* The window manager could have restarted and the new
		 window manager might not support user time windows,
		 so update what is used accordingly.

	         Note that this doesn't handle changes between
	         non-reparenting window managers.  */
	      if (FRAME_X_OUTPUT (f)->has_been_visible)
		x_update_frame_user_time_window (f);
#endif
	    }
	  else
	    {
	      Window root;
	      unsigned int dummy_uint;

	      XGetGeometry (FRAME_X_DISPLAY (f), FRAME_OUTER_WINDOW (f),
			    &root, &f->left_pos, &f->top_pos,
			    &dummy_uint, &dummy_uint, &dummy_uint, &dummy_uint);
	    }

          x_set_frame_alpha (f);
        }
      goto OTHER;

    case Expose:

#ifdef HAVE_XWIDGETS
      {
	struct xwidget_view *xv;

	xv = xwidget_view_from_window (event->xexpose.window);

	if (xv)
	  {
	    xwidget_expose (xv);
	    goto OTHER;
	  }
      }
#endif

      f = x_window_to_frame (dpyinfo, event->xexpose.window);
      if (f)
        {
          if (!FRAME_VISIBLE_P (f))
            {
	      /* By default, do not set the frame's visibility here, see
		 https://lists.gnu.org/archive/html/emacs-devel/2017-02/msg00133.html.
		 The default behavior can be overridden by setting
		 'x-set-frame-visibility-more-laxly' (Bug#49955,
		 Bug#53298).  */
	      if (EQ (x_set_frame_visibility_more_laxly, Qexpose)
		  || EQ (x_set_frame_visibility_more_laxly, Qt))
		{
		  SET_FRAME_VISIBLE (f, 1);
		  SET_FRAME_ICONIFIED (f, false);
		}

#ifdef HAVE_XDBE
	      if (FRAME_X_DOUBLE_BUFFERED_P (f))
                x_drop_xrender_surfaces (f);
#endif
              f->output_data.x->has_been_visible = true;
              SET_FRAME_GARBAGED (f);
            }
          else if (FRAME_GARBAGED_P (f))
	    {
#ifdef USE_GTK
	      /* Go around the back buffer and manually clear the
		 window the first time we show it.  This way, we avoid
		 showing users the sanity-defying horror of whatever
		 GtkWindow is rendering beneath us.  We've garbaged
		 the frame, so we'll redraw the whole thing on next
		 redisplay anyway.  Yuck.  */
	      x_clear_area1 (FRAME_X_DISPLAY (f),
			     FRAME_X_WINDOW (f),
			     event->xexpose.x, event->xexpose.y,
			     event->xexpose.width, event->xexpose.height,
			     0);
	      x_clear_under_internal_border (f);
#endif
	    }

          if (!FRAME_GARBAGED_P (f))
            {
#if defined USE_X_TOOLKIT && defined USE_TOOLKIT_SCROLL_BARS
	      if (f->output_data.x->edit_widget)
		/* The widget's expose proc will be run in this
		   case.  */
		goto OTHER;
#endif
#ifdef USE_GTK
              /* This seems to be needed for GTK 2.6 and later, see
                 https://debbugs.gnu.org/cgi/bugreport.cgi?bug=15398.  */
              x_clear_area (f,
                            event->xexpose.x, event->xexpose.y,
                            event->xexpose.width, event->xexpose.height);
#endif
              expose_frame (f, event->xexpose.x, event->xexpose.y,
			    event->xexpose.width, event->xexpose.height);
#ifndef USE_TOOLKIT_SCROLL_BARS
	      x_scroll_bar_handle_exposure (f, (XEvent *) event);
#endif
#ifdef USE_GTK
	      x_clear_under_internal_border (f);
#endif
            }
#ifndef USE_TOOLKIT_SCROLL_BARS
	  else
	    x_scroll_bar_handle_exposure (f, (XEvent *) event);
#endif

#ifdef HAVE_XDBE
          if (!FRAME_GARBAGED_P (f))
            show_back_buffer (f);
#endif
        }
      else
        {
#if defined USE_LUCID
          /* Submenus of the Lucid menu bar aren't widgets
             themselves, so there's no way to dispatch events
             to them.  Recognize this case separately.  */
          {
            Widget widget = x_window_to_menu_bar (event->xexpose.window);
            if (widget)
              xlwmenu_redisplay (widget);
          }
#endif /* USE_LUCID */

          /* Dispatch event to the widget.  */
          goto OTHER;
        }
      break;

    case GraphicsExpose:	/* This occurs when an XCopyArea's
                                   source area was obscured or not
                                   available.  */
      f = x_window_to_frame (dpyinfo, event->xgraphicsexpose.drawable);
      if (f)
        {
          expose_frame (f, event->xgraphicsexpose.x,
                        event->xgraphicsexpose.y,
                        event->xgraphicsexpose.width,
                        event->xgraphicsexpose.height);
#ifndef USE_TOOLKIT_SCROLL_BARS
	  x_scroll_bar_handle_exposure (f, (XEvent *) event);
#endif
#ifdef USE_GTK
	  x_clear_under_internal_border (f);
#endif
#ifdef HAVE_XDBE
	  show_back_buffer (f);
#endif
        }
#ifdef USE_X_TOOLKIT
      else
        goto OTHER;
#endif /* USE_X_TOOLKIT */
      break;

    case NoExpose:		/* This occurs when an XCopyArea's
                                   source area was completely
                                   available.  */
#ifdef USE_X_TOOLKIT
      *finish = X_EVENT_DROP;
#endif
      break;

    case UnmapNotify:
      if (x_dnd_in_progress && x_dnd_use_toplevels
	  && dpyinfo == FRAME_DISPLAY_INFO (x_dnd_frame))
	{
	  for (struct x_client_list_window *tem = x_dnd_toplevels; tem;
	       tem = tem->next)
	    {
	      if (tem->window == event->xunmap.window)
		{
		  tem->mapped_p = false;
		  break;
		}
	    }
	}

      /* Redo the mouse-highlight after the tooltip has gone.  */
      if (event->xunmap.window == tip_window)
        {
          tip_window = None;
          gui_redo_mouse_highlight (dpyinfo);
        }

      f = x_top_window_to_frame (dpyinfo, event->xunmap.window);
      if (f)		/* F may no longer exist if
                           the frame was deleted.  */
        {
	  bool visible = FRAME_VISIBLE_P (f);

#ifdef USE_LUCID
	  /* Bloodcurdling hack alert: The Lucid menu bar widget's
	     redisplay procedure is not called when a tip frame over
	     menu items is unmapped.  Redisplay the menu manually...  */
	  if (FRAME_TOOLTIP_P (f) && popup_activated ())
	    {
	      Widget w;
	      Lisp_Object tail, frame;
	      struct frame *f1;

	      FOR_EACH_FRAME (tail, frame)
		{
		  if (!FRAME_X_P (XFRAME (frame)))
		    continue;

		  f1 = XFRAME (frame);

		  if (FRAME_LIVE_P (f1))
		    {
		      w = FRAME_X_OUTPUT (f1)->menubar_widget;

		      if (w && !DoesSaveUnders (FRAME_DISPLAY_INFO (f1)->screen))
			xlwmenu_redisplay (w);
		    }
		}
	    }
#endif /* USE_LUCID */

	  /* While a frame is unmapped, display generation is
             disabled; you don't want to spend time updating a
             display that won't ever be seen.  */
          SET_FRAME_VISIBLE (f, 0);
          /* We can't distinguish, from the event, whether the window
             has become iconified or invisible.  So assume, if it
             was previously visible, than now it is iconified.
             But x_make_frame_invisible clears both
             the visible flag and the iconified flag;
             and that way, we know the window is not iconified now.  */
          if (visible || FRAME_ICONIFIED_P (f))
            {
	      if (CONSP (frame_size_history))
		frame_size_history_plain
		  (f, build_string ("UnmapNotify, visible | iconified"));

              SET_FRAME_ICONIFIED (f, true);
	      inev.ie.kind = ICONIFY_EVENT;
              XSETFRAME (inev.ie.frame_or_window, f);
            }
	  else if (CONSP (frame_size_history))
	    frame_size_history_plain
	      (f, build_string ("UnmapNotify, not visible & not iconified"));
        }
      goto OTHER;

    case MapNotify:
#if defined HAVE_XINPUT2 && defined HAVE_GTK3
      if (xg_is_menu_window (dpyinfo->display, event->xmap.window))
	popup_activated_flag = 1;
#endif

      if (x_dnd_in_progress
	  /* When _NET_WM_CLIENT_LIST stacking is being used, changes
	     in that property are watched for, and it's not necessary
	     to update the state in response to ordinary window
	     substructure events.  */
	  && !x_dnd_use_toplevels
	  && dpyinfo == FRAME_DISPLAY_INFO (x_dnd_frame))
	x_dnd_update_state (dpyinfo, dpyinfo->last_user_time);

      if (x_dnd_in_progress && x_dnd_use_toplevels
	  && dpyinfo == FRAME_DISPLAY_INFO (x_dnd_frame))
	{
	  for (struct x_client_list_window *tem = x_dnd_toplevels; tem;
	       tem = tem->next)
	    {
	      if (tem->window == event->xmap.window)
		{
		  tem->mapped_p = true;
		  break;
		}
	    }
	}

      /* We use x_top_window_to_frame because map events can
         come for sub-windows and they don't mean that the
         frame is visible.  */
      f = x_top_window_to_frame (dpyinfo, event->xmap.window);
      if (f)
        {
	  bool iconified = FRAME_ICONIFIED_P (f);
	  int value;
	  bool sticky, shaded;
          bool not_hidden = x_get_current_wm_state (f, event->xmap.window, &value, &sticky,
						    &shaded);

	  if (CONSP (frame_size_history))
	    frame_size_history_extra
	      (f,
	       iconified
	       ? (not_hidden
		  ? build_string ("MapNotify, not hidden & iconified")
		  : build_string ("MapNotify, hidden & iconified"))
	       : (not_hidden
		  ? build_string ("MapNotify, not hidden & not iconified")
		  : build_string ("MapNotify, hidden & not iconified")),
	       FRAME_PIXEL_WIDTH (f), FRAME_PIXEL_HEIGHT (f),
	       -1, -1, f->new_width, f->new_height);

	  /* Check if fullscreen was specified before we where mapped the
             first time, i.e. from the command line.  */
          if (!f->output_data.x->has_been_visible)
	    {

	      x_check_fullscreen (f);
#ifndef USE_GTK
	      /* For systems that cannot synthesize `skip_taskbar' for
		 unmapped windows do the following.  */
	      if (FRAME_SKIP_TASKBAR (f))
		x_set_skip_taskbar (f, Qt, Qnil);
#endif /* Not USE_GTK */
	    }

	  if (!iconified)
	    {
	      /* The `z-group' is reset every time a frame becomes
		 invisible.  Handle this here.  */
	      if (FRAME_Z_GROUP (f) == z_group_above)
		x_set_z_group (f, Qabove, Qnil);
	      else if (FRAME_Z_GROUP (f) == z_group_below)
		x_set_z_group (f, Qbelow, Qnil);
	    }

	  /* Embedded frames might have NET_WM_STATE left over, but
	     are always visible once mapped.  */
	  if (not_hidden || FRAME_X_EMBEDDED_P (f))
	    {
	      SET_FRAME_VISIBLE (f, 1);
	      SET_FRAME_ICONIFIED (f, false);
#if defined USE_GTK && defined HAVE_GTK3
	      /* If GTK3 wants to impose some old size here (Bug#24526),
		 tell it that the current size is what we want.  */
	      if (f->was_invisible)
		{
		  xg_frame_set_char_size
		    (f, FRAME_PIXEL_WIDTH (f), FRAME_PIXEL_HEIGHT (f));
		  f->was_invisible = false;
		}
#endif
	      f->output_data.x->has_been_visible = true;
	    }

	  x_update_opaque_region (f, NULL);

          if ((not_hidden || FRAME_X_EMBEDDED_P (f)) && iconified)
            {
              inev.ie.kind = DEICONIFY_EVENT;
              XSETFRAME (inev.ie.frame_or_window, f);
            }
        }
      goto OTHER;

    case KeyPress:
      x_display_set_last_user_time (dpyinfo, event->xkey.time,
				    event->xkey.send_event,
				    true);
      ignore_next_mouse_click_timeout = 0;

      coding = Qlatin_1;

#if defined (USE_X_TOOLKIT) || defined (USE_GTK)
      /* Dispatch KeyPress events when in menu.  */
      if (popup_activated ())
        goto OTHER;
#endif

      f = any;

#ifdef USE_GTK
      if (f)
	x_set_gtk_user_time (f, event->xkey.time);
#endif

      /* If mouse-highlight is an integer, input clears out
	 mouse highlighting.  */
      if (!hlinfo->mouse_face_hidden && FIXNUMP (Vmouse_highlight)
	  && (f == 0
#if ! defined (USE_GTK)
	      || !EQ (f->tool_bar_window, hlinfo->mouse_face_window)
#endif
	      || !EQ (f->tab_bar_window, hlinfo->mouse_face_window))
	  )
        {
	  mouse_frame = hlinfo->mouse_face_mouse_frame;

	  clear_mouse_face (hlinfo);
	  hlinfo->mouse_face_hidden = true;

	  if (mouse_frame)
	    x_flush_dirty_back_buffer_on (mouse_frame);
	}

#if defined USE_MOTIF && defined USE_TOOLKIT_SCROLL_BARS
      if (f == 0)
        {
          /* Scroll bars consume key events, but we want
             the keys to go to the scroll bar's frame.  */
          Widget widget = XtWindowToWidget (dpyinfo->display,
                                            event->xkey.window);
          if (widget && XmIsScrollBar (widget))
            {
              widget = XtParent (widget);
              f = x_any_window_to_frame (dpyinfo, XtWindow (widget));
            }
        }
#endif /* USE_MOTIF and USE_TOOLKIT_SCROLL_BARS */

      if (f != 0)
        {
          KeySym keysym, orig_keysym;
          /* al%imercury@uunet.uu.net says that making this 81
             instead of 80 fixed a bug whereby meta chars made
             his Emacs hang.

             It seems that some version of XmbLookupString has
             a bug of not returning XBufferOverflow in
             status_return even if the input is too long to
             fit in 81 bytes.  So, we must prepare sufficient
             bytes for copy_buffer.  513 bytes (256 chars for
             two-byte character set) seems to be a fairly good
             approximation.  -- 2000.8.10 handa@gnu.org  */
          unsigned char copy_buffer[513];
          unsigned char *copy_bufptr = copy_buffer;
          int copy_bufsiz = sizeof (copy_buffer);
          int modifiers;
	  Lisp_Object c;
	  /* `xkey' will be modified, but it's not important to modify
	     `event' itself.  */
	  XKeyEvent xkey = event->xkey;

	  if (event->xkey.window == FRAME_X_WINDOW (f))
	    /* See the comment above x_compute_root_window_offset for
	       why this optimization is performed.  */
	    x_compute_root_window_offset (f, event->xkey.x_root,
					  event->xkey.y_root,
					  event->xkey.x, event->xkey.y);

#ifdef HAVE_XINPUT2
	  Time pending_keystroke_time;
	  struct xi_device_t *source;

	  pending_keystroke_time = dpyinfo->pending_keystroke_time;

	  if (event->xkey.time >= pending_keystroke_time)
	    {
#if defined USE_GTK && !defined HAVE_GTK3
	      if (!dpyinfo->pending_keystroke_time_special_p)
#endif
		dpyinfo->pending_keystroke_time = 0;
#if defined USE_GTK && !defined HAVE_GTK3
	      else
		dpyinfo->pending_keystroke_time_special_p = false;
#endif
	    }
#endif

#ifdef USE_GTK
          /* Don't pass keys to GTK.  A Tab will shift focus to the
             tool bar in GTK 2.4.  Keys will still go to menus and
             dialogs because in that case popup_activated is nonzero
             (see above).  */
          *finish = X_EVENT_DROP;
#endif

          xkey.state |= x_emacs_to_x_modifiers (dpyinfo,
						extra_keyboard_modifiers);
          modifiers = xkey.state;

          /* This will have to go some day...  */

          /* make_lispy_event turns chars into control chars.
             Don't do it here because XLookupString is too eager.  */
          xkey.state &= ~ControlMask;
          xkey.state &= ~(dpyinfo->meta_mod_mask
			  | dpyinfo->super_mod_mask
			  | dpyinfo->hyper_mod_mask
			  | dpyinfo->alt_mod_mask);

          /* In case Meta is ComposeCharacter,
             clear its status.  According to Markus Ehrnsperger
             Markus.Ehrnsperger@lehrstuhl-bross.physik.uni-muenchen.de
             this enables ComposeCharacter to work whether or
             not it is combined with Meta.  */
          if (modifiers & dpyinfo->meta_mod_mask)
            memset (&compose_status, 0, sizeof (compose_status));

#ifdef HAVE_X_I18N
          if (FRAME_XIC (f))
            {
              Status status_return;

              nbytes = XmbLookupString (FRAME_XIC (f),
                                        &xkey, (char *) copy_bufptr,
                                        copy_bufsiz, &keysym,
                                        &status_return);
	      coding = FRAME_X_XIM_CODING (f);
              if (status_return == XBufferOverflow)
                {
                  copy_bufsiz = nbytes + 1;
                  copy_bufptr = SAFE_ALLOCA (copy_bufsiz);
                  nbytes = XmbLookupString (FRAME_XIC (f),
                                            &xkey, (char *) copy_bufptr,
                                            copy_bufsiz, &keysym,
                                            &status_return);
                }
              /* Xutf8LookupString is a new but already deprecated interface.  -stef  */
              if (status_return == XLookupNone)
                break;
              else if (status_return == XLookupChars)
                {
                  keysym = NoSymbol;
                  modifiers = 0;
                }
              else if (status_return != XLookupKeySym
                       && status_return != XLookupBoth)
                emacs_abort ();
            }
          else
#endif
	    {
#ifdef HAVE_XKB
	      int overflow;
	      unsigned int consumed;
	      KeySym sym;

	      if (dpyinfo->xkb_desc)
		{
		  /* Translate the keycode into the keysym it
		     represents, using STATE.  CONSUMED is set to the
		     modifier bits consumed while undertaking this
		     translation and should be subsequently ignored
		     during keysym translation.  */

		  if (!XkbTranslateKeyCode (dpyinfo->xkb_desc,
					    xkey.keycode, xkey.state,
					    &consumed, &keysym))
		    goto done_keysym;

		  /* Save the original keysym in case
		     XkbTranslateKeysym overflows.  */
		  sym = keysym, overflow = 0;

		  nbytes = XkbTranslateKeySym (dpyinfo->display, &keysym,
					       xkey.state & ~consumed,
					       (char *) copy_bufptr,
					       copy_bufsiz, &overflow);

		  if (overflow)
		    {
		      copy_bufptr = SAFE_ALLOCA ((copy_bufsiz += overflow)
						 * sizeof *copy_bufptr);
		      overflow = 0;

		      /* Use the original keysym derived from the
			 keycode translation in this second call to
			 XkbTranslateKeysym.  */
		      nbytes = XkbTranslateKeySym (dpyinfo->display, &sym,
						   xkey.state & ~consumed,
						   (char *) copy_bufptr,
						   copy_bufsiz, &overflow);

		      if (overflow)
			nbytes = 0;
		    }

		  if (nbytes)
		    coding = Qnil;
		}
	      else
#endif
		nbytes = XLookupString (&xkey, (char *) copy_bufptr,
					copy_bufsiz, &keysym,
					&compose_status);
	    }

#ifdef XK_F1
	  if (x_dnd_in_progress && keysym == XK_F1)
	    {
	      x_dnd_xm_use_help = true;
	      goto done_keysym;
	    }
#endif

	  /* See if keysym should make Emacs quit.  */

	  if (dpyinfo->quit_keysym)
	    {
	      if (keysym == dpyinfo->quit_keysym
		  && (xkey.time - dpyinfo->quit_keysym_time
		      <= 350))
		{
		  Vquit_flag = Qt;
		  goto done_keysym;
		}

	      if (keysym == dpyinfo->quit_keysym)
		{
		  /* Otherwise, set the last time that keysym was
		     pressed.  */
		  dpyinfo->quit_keysym_time = xkey.time;
		  goto done_keysym;
		}
	    }

          /* If not using XIM/XIC, and a compose sequence is in progress,
             we break here.  Otherwise, chars_matched is always 0.  */
          if (compose_status.chars_matched > 0 && nbytes == 0)
            break;

          memset (&compose_status, 0, sizeof (compose_status));
          orig_keysym = keysym;

	  /* Common for all keysym input events.  */
	  XSETFRAME (inev.ie.frame_or_window, f);
	  inev.ie.modifiers
	    = x_x_to_emacs_modifiers (dpyinfo, modifiers);
	  inev.ie.timestamp = xkey.time;

	  /* First deal with keysyms which have defined
	     translations to characters.  */
	  if (keysym >= 32 && keysym < 128)
	    /* Avoid explicitly decoding each ASCII character.  */
	    {
	      inev.ie.kind = ASCII_KEYSTROKE_EVENT;
	      inev.ie.code = keysym;

#ifdef HAVE_XINPUT2
	      if (event->xkey.time == pending_keystroke_time)
		{
		  source = xi_device_from_id (dpyinfo,
					      dpyinfo->pending_keystroke_source);

		  if (source)
		    inev.ie.device = source->name;
		}
#endif

	      goto done_keysym;
	    }

	  /* Keysyms directly mapped to Unicode characters.  */
	  if (keysym >= 0x01000000 && keysym <= 0x0110FFFF)
	    {
	      if (keysym < 0x01000080)
		inev.ie.kind = ASCII_KEYSTROKE_EVENT;
	      else
		inev.ie.kind = MULTIBYTE_CHAR_KEYSTROKE_EVENT;
	      inev.ie.code = keysym & 0xFFFFFF;

#ifdef HAVE_XINPUT2
	      if (event->xkey.time == pending_keystroke_time)
		{
		  source = xi_device_from_id (dpyinfo,
					      dpyinfo->pending_keystroke_source);

		  if (source)
		    inev.ie.device = source->name;
		}
#endif

	      goto done_keysym;
	    }

	  /* Now non-ASCII.  */
	  if (HASH_TABLE_P (Vx_keysym_table)
	      && (c = Fgethash (make_fixnum (keysym),
				Vx_keysym_table,
				Qnil),
		  FIXNATP (c)))
	    {
	      inev.ie.kind = (SINGLE_BYTE_CHAR_P (XFIXNAT (c))
                              ? ASCII_KEYSTROKE_EVENT
                              : MULTIBYTE_CHAR_KEYSTROKE_EVENT);
	      inev.ie.code = XFIXNAT (c);

#ifdef HAVE_XINPUT2
	      if (event->xkey.time == pending_keystroke_time)
		{
		  source = xi_device_from_id (dpyinfo,
					      dpyinfo->pending_keystroke_source);

		  if (source)
		    inev.ie.device = source->name;
		}
#endif

	      goto done_keysym;
	    }

	  /* Random non-modifier sorts of keysyms.  */
	  if (((keysym >= XK_BackSpace && keysym <= XK_Escape)
	       || keysym == XK_Delete
#ifdef XK_ISO_Left_Tab
	       || (keysym >= XK_ISO_Left_Tab
		   && keysym <= XK_ISO_Enter)
#endif
	       || IsCursorKey (keysym) /* 0xff50 <= x < 0xff60 */
	       || IsMiscFunctionKey (keysym) /* 0xff60 <= x < VARIES */
#ifdef HPUX
	       /* This recognizes the "extended function
		  keys".  It seems there's no cleaner way.
		  Test IsModifierKey to avoid handling
		  mode_switch incorrectly.  */
	       || (XK_Select <= keysym && keysym < XK_KP_Space)
#endif
#ifdef XK_dead_circumflex
	       || orig_keysym == XK_dead_circumflex
#endif
#ifdef XK_dead_grave
	       || orig_keysym == XK_dead_grave
#endif
#ifdef XK_dead_tilde
	       || orig_keysym == XK_dead_tilde
#endif
#ifdef XK_dead_diaeresis
	       || orig_keysym == XK_dead_diaeresis
#endif
#ifdef XK_dead_macron
	       || orig_keysym == XK_dead_macron
#endif
#ifdef XK_dead_degree
	       || orig_keysym == XK_dead_degree
#endif
#ifdef XK_dead_acute
	       || orig_keysym == XK_dead_acute
#endif
#ifdef XK_dead_cedilla
	       || orig_keysym == XK_dead_cedilla
#endif
#ifdef XK_dead_breve
	       || orig_keysym == XK_dead_breve
#endif
#ifdef XK_dead_ogonek
	       || orig_keysym == XK_dead_ogonek
#endif
#ifdef XK_dead_caron
	       || orig_keysym == XK_dead_caron
#endif
#ifdef XK_dead_doubleacute
	       || orig_keysym == XK_dead_doubleacute
#endif
#ifdef XK_dead_abovedot
	       || orig_keysym == XK_dead_abovedot
#endif
#ifdef XK_dead_abovering
	       || orig_keysym == XK_dead_abovering
#endif
#ifdef XK_dead_belowdot
	       || orig_keysym == XK_dead_belowdot
#endif
#ifdef XK_dead_voiced_sound
	       || orig_keysym == XK_dead_voiced_sound
#endif
#ifdef XK_dead_semivoiced_sound
	       || orig_keysym == XK_dead_semivoiced_sound
#endif
#ifdef XK_dead_hook
	       || orig_keysym == XK_dead_hook
#endif
#ifdef XK_dead_horn
	       || orig_keysym == XK_dead_horn
#endif
#ifdef XK_dead_stroke
	       || orig_keysym == XK_dead_stroke
#endif
#ifdef XK_dead_abovecomma
	       || orig_keysym == XK_dead_abovecomma
#endif
	       || IsKeypadKey (keysym) /* 0xff80 <= x < 0xffbe */
	       || IsFunctionKey (keysym) /* 0xffbe <= x < 0xffe1 */
	       /* Any "vendor-specific" key is ok.  */
	       || (orig_keysym & (1 << 28))
	       || (keysym != NoSymbol && nbytes == 0))
	      && ! (IsModifierKey (orig_keysym)
		    /* The symbols from XK_ISO_Lock
		       to XK_ISO_Last_Group_Lock
		       don't have real modifiers but
		       should be treated similarly to
		       Mode_switch by Emacs. */
#if defined XK_ISO_Lock && defined XK_ISO_Last_Group_Lock
		    || (XK_ISO_Lock <= orig_keysym
			&& orig_keysym <= XK_ISO_Last_Group_Lock)
#endif
		    ))
	    {
	      STORE_KEYSYM_FOR_DEBUG (keysym);
	      /* make_lispy_event will convert this to a symbolic
		 key.  */
	      inev.ie.kind = NON_ASCII_KEYSTROKE_EVENT;
	      inev.ie.code = keysym;

#ifdef HAVE_XINPUT2
	      if (event->xkey.time == pending_keystroke_time)
		{
		  source = xi_device_from_id (dpyinfo,
					      dpyinfo->pending_keystroke_source);

		  if (source)
		    inev.ie.device = source->name;
		}
#endif

	      goto done_keysym;
	    }

	  {	/* Raw bytes, not keysym.  */
	    ptrdiff_t i;

	    for (i = 0; i < nbytes; i++)
	      {
		STORE_KEYSYM_FOR_DEBUG (copy_bufptr[i]);
	      }

	    if (nbytes)
	      {
		inev.ie.kind = MULTIBYTE_CHAR_KEYSTROKE_EVENT;
		inev.ie.arg = make_unibyte_string ((char *) copy_bufptr, nbytes);

		Fput_text_property (make_fixnum (0), make_fixnum (nbytes),
				    Qcoding, coding, inev.ie.arg);

#ifdef HAVE_XINPUT2
		if (event->xkey.time == pending_keystroke_time
		    /* I-Bus sometimes sends events generated from
		       multiple filtered keystrokes with a time of 0,
		       so just use the recorded source device if it
		       exists.  */
		    || (pending_keystroke_time && !event->xkey.time))
		  {
		    source = xi_device_from_id (dpyinfo,
						dpyinfo->pending_keystroke_source);

		    if (source)
		      inev.ie.device = source->name;
		  }
#endif
	      }

	    if (keysym == NoSymbol)
	      break;
	  }
        }
    done_keysym:
#ifdef HAVE_X_I18N
      if (f)
	{
	  struct window *w = XWINDOW (f->selected_window);
	  xic_set_preeditarea (w, w->cursor.x, w->cursor.y);

	  if (FRAME_XIC (f) && (FRAME_XIC_STYLE (f) & XIMStatusArea))
            xic_set_statusarea (f);
	}

      /* Don't dispatch this event since XtDispatchEvent calls
         XFilterEvent, and two calls in a row may freeze the
         client.  */
      break;
#else
      goto OTHER;
#endif

    case KeyRelease:
#ifdef HAVE_X_I18N
      /* Don't dispatch this event since XtDispatchEvent calls
         XFilterEvent, and two calls in a row may freeze the
         client.  */
      break;
#else
      goto OTHER;
#endif

    case EnterNotify:
      x_display_set_last_user_time (dpyinfo, event->xcrossing.time,
				    event->xcrossing.send_event,
				    false);

#ifdef HAVE_XWIDGETS
      {
	struct xwidget_view *xvw;
	Mouse_HLInfo *hlinfo;

	xvw = xwidget_view_from_window (event->xcrossing.window);

	if (xvw)
	  {
	    xwidget_motion_or_crossing (xvw, event);
	    hlinfo = MOUSE_HL_INFO (xvw->frame);

	    if (xvw->frame == hlinfo->mouse_face_mouse_frame)
	      {
		clear_mouse_face (hlinfo);
		hlinfo->mouse_face_mouse_frame = 0;
		x_flush_dirty_back_buffer_on (xvw->frame);
	      }

	    if (any_help_event_p)
	      do_help = -1;

	    goto OTHER;
	  }
      }
#endif

      /* Apply the fix for bug#57468 on GTK 3.x and no toolkit builds,
	 but not GTK+ 2.x and X toolkit builds, where it is required
	 to treat implicit focus correctly.  (bug#65919) */
#if defined USE_X_TOOLKIT || (defined USE_GTK && !defined HAVE_GTK3)
      if (x_top_window_to_frame (dpyinfo, event->xcrossing.window))
	x_detect_focus_change (dpyinfo, any, event, &inev.ie);
#endif /* defined USE_X_TOOLKIT || (defined USE_GTK && !defined HAVE_GTK3) */

#ifdef HAVE_XINPUT2
      /* For whatever reason, the X server continues to deliver
	 EnterNotify and LeaveNotify events despite us selecting for
	 related XI_Enter and XI_Leave events.  It's not just our
	 problem, since windows created by "xinput test-xi2" suffer
	 from the same defect.  Simply ignore all such events while
	 the input extension is enabled.  (bug#57468) */

      if (dpyinfo->supports_xi2)
	goto OTHER;
#endif /* HAVE_XINPUT2 */

      /* Apply the fix for bug#57468 on GTK 3.x and no toolkit
	 builds.  */
#if !defined USE_X_TOOLKIT || (!defined USE_GTK || defined HAVE_GTK3)
      if (x_top_window_to_frame (dpyinfo, event->xcrossing.window))
	x_detect_focus_change (dpyinfo, any, event, &inev.ie);
#endif /* !defined USE_X_TOOLKIT || (!defined USE_GTK || defined HAVE_GTK3) */

      f = any;

      if (f && event->xcrossing.window == FRAME_X_WINDOW (f))
	x_compute_root_window_offset (f, event->xcrossing.x_root,
				      event->xcrossing.y_root,
				      event->xcrossing.x,
				      event->xcrossing.y);

      /* The code below relies on the first several fields of
	 XCrossingEvent being laid out the same way as
	 XMotionEvent.  */

      if (f && x_mouse_click_focus_ignore_position)
	{
	  ignore_next_mouse_click_timeout = (event->xmotion.time
					     + x_mouse_click_focus_ignore_time);
	  mouse_click_timeout_display = dpyinfo;
	}

      /* EnterNotify counts as mouse movement,
	 so update things that depend on mouse position.  */
      if (f && !f->output_data.x->hourglass_p)
	x_note_mouse_movement (f, &event->xmotion, Qnil);
#ifdef USE_GTK
      /* We may get an EnterNotify on the buttons in the toolbar.  In that
         case we moved out of any highlighted area and need to note this.  */
      if (!f && dpyinfo->last_mouse_glyph_frame)
        x_note_mouse_movement (dpyinfo->last_mouse_glyph_frame, &event->xmotion,
			       Qnil);
#endif
      goto OTHER;

    case FocusIn:
#if defined HAVE_XINPUT2						\
  && (defined HAVE_GTK3 || (!defined USE_GTK && !defined USE_X_TOOLKIT))
      /* If a FocusIn event is received (because the window manager
	 sent us one), don't set the core focus if XInput 2 is
	 enabled, since that would mess up the device-specific focus
	 tracking.

	 The long looking preprocessor conditional only enables this
	 code on GTK 3 and no toolkit builds, since those are the only
	 builds where focus is tracked specific to each master device.
	 Other builds use core events and the client pointer to handle
	 focus, much like on a build without XInput 2.  */
      if (dpyinfo->supports_xi2)
	goto OTHER;
#endif
#ifdef USE_GTK
      /* Some WMs (e.g. Mutter in Gnome Shell), don't unmap
         minimized/iconified windows; thus, for those WMs we won't get
         a MapNotify when unminimizing/deiconifying.  Check here if we
         are deiconizing a window (Bug42655).

	 But don't do that by default on GTK since it may cause a plain
	 invisible frame get reported as iconified, compare
	 https://lists.gnu.org/archive/html/emacs-devel/2017-02/msg00133.html.
	 That is fixed above but bites us here again.

	 The option x_set_frame_visibility_more_laxly enables
	 overriding the default behavior (Bug#49955, Bug#53298).  */
      if (EQ (x_set_frame_visibility_more_laxly, Qfocus_in)
	  || EQ (x_set_frame_visibility_more_laxly, Qt))
#endif /* USE_GTK */
	{
	  f = any;
	  if (f && FRAME_ICONIFIED_P (f))
	    {
	      SET_FRAME_VISIBLE (f, 1);
	      SET_FRAME_ICONIFIED (f, false);
	      f->output_data.x->has_been_visible = true;
	      inev.ie.kind = DEICONIFY_EVENT;
	      XSETFRAME (inev.ie.frame_or_window, f);
	    }
	}

      x_detect_focus_change (dpyinfo, any, event, &inev.ie);
      goto OTHER;

    case LeaveNotify:
      x_display_set_last_user_time (dpyinfo, event->xcrossing.time,
				    event->xcrossing.send_event, false);

      /* Apply the fix for bug#57468 on GTK 3.x and no toolkit builds,
	 but not GTK+ 2.x and X toolkit builds, where it is required
	 to treat implicit focus correctly.  */
#if defined USE_X_TOOLKIT || (defined USE_GTK && !defined HAVE_GTK3)
      if (x_top_window_to_frame (dpyinfo, event->xcrossing.window))
	x_detect_focus_change (dpyinfo, any, event, &inev.ie);
#endif /* defined USE_X_TOOLKIT || (defined USE_GTK && !defined HAVE_GTK3) */

#ifdef HAVE_XINPUT2
      /* For whatever reason, the X server continues to deliver
	 EnterNotify and LeaveNotify events despite us selecting for
	 related XI_Enter and XI_Leave events.  It's not just our
	 problem, since windows created by "xinput test-xi2" suffer
	 from the same defect.  Simply ignore all such events while
	 the input extension is enabled.  (bug#57468) */

      if (dpyinfo->supports_xi2)
	{
#if !defined USE_X_TOOLKIT && (!defined USE_GTK || defined HAVE_GTK3)
	  goto OTHER;
#else /* USE_X_TOOLKIT || (USE_GTK && !HAVE_GTK3) */
	  /* Unfortunately, X toolkit popups generate LeaveNotify
	     events due to the core grabs they acquire (and our
	     releasing of the device grab).  This leads to the mouse
	     face persisting if a popup is activated by clicking on a
	     button, and then dismissed by releasing the mouse button
	     outside the frame, in which case no XI_Enter event is
	     generated for the grab.  */
	  goto just_clear_mouse_face;
#endif /* !USE_X_TOOLKIT && (!USE_GTK || HAVE_GTK3) */
	}
#endif /* HAVE_XINPUT2 */

      /* Apply the fix for bug#57468 on GTK 3.x and no toolkit
	 builds.  */
#if !defined USE_X_TOOLKIT || (!defined USE_GTK || defined HAVE_GTK3)
      if (x_top_window_to_frame (dpyinfo, event->xcrossing.window))
	x_detect_focus_change (dpyinfo, any, event, &inev.ie);
#endif /* !defined USE_X_TOOLKIT || (!defined USE_GTK || defined HAVE_GTK3) */

#ifdef HAVE_XWIDGETS
      {
	struct xwidget_view *xvw;

	xvw = xwidget_view_from_window (event->xcrossing.window);

	if (xvw)
	  {
	    xwidget_motion_or_crossing (xvw, event);
	    goto OTHER;
	  }
      }
#endif

#if defined HAVE_XINPUT2						\
  && (defined USE_X_TOOLKIT || (defined USE_GTK && !defined HAVE_GTK3))
    just_clear_mouse_face:
#endif

#if defined USE_X_TOOLKIT
      /* If the mouse leaves the edit widget, then any mouse highlight
	 should be cleared.  */
      f = x_window_to_frame (dpyinfo, event->xcrossing.window);

      if (!f)
	f = x_top_window_to_frame (dpyinfo, event->xcrossing.window);
#else
      f = x_top_window_to_frame (dpyinfo, event->xcrossing.window);
#endif

      if (f)
        {
	  /* Now clear dpyinfo->last_mouse_motion_frame, or
	     gui_redo_mouse_highlight will end up highlighting the
	     last known position of the mouse if a tooltip frame is
	     later unmapped.  */

	  if (f == dpyinfo->last_mouse_motion_frame)
	    dpyinfo->last_mouse_motion_frame = NULL;

	  /* Something similar applies to
	     dpyinfo->last_mouse_glyph_frame.  */
	  if (f == dpyinfo->last_mouse_glyph_frame)
	    dpyinfo->last_mouse_glyph_frame = NULL;

          if (f == hlinfo->mouse_face_mouse_frame)
            {
              /* If we move outside the frame, then we're
                 certainly no longer on any text in the frame.  */
              clear_mouse_face (hlinfo);
              hlinfo->mouse_face_mouse_frame = 0;
	      x_flush_dirty_back_buffer_on (f);
            }

          /* Generate a nil HELP_EVENT to cancel a help-echo.
             Do it only if there's something to cancel.
             Otherwise, the startup message is cleared when
             the mouse leaves the frame.  */
          if (any_help_event_p
	      /* But never if `mouse-drag-and-drop-region' is in
		 progress, since that results in the tooltip being
		 dismissed when the mouse moves on top.  */
	      && !((EQ (track_mouse, Qdrag_source)
		    || EQ (track_mouse, Qdropping))
		   && gui_mouse_grabbed (dpyinfo)))
	    do_help = -1;

	  if (event->xcrossing.window == FRAME_X_WINDOW (f))
	    x_compute_root_window_offset (f, event->xcrossing.x_root,
					  event->xcrossing.y_root,
					  event->xcrossing.x,
					  event->xcrossing.y);

        }
#ifdef USE_GTK
      /* See comment in EnterNotify above */
      else if (dpyinfo->last_mouse_glyph_frame)
        x_note_mouse_movement (dpyinfo->last_mouse_glyph_frame,
			       &event->xmotion, Qnil);
#endif
      goto OTHER;

    case FocusOut:
#if defined HAVE_XINPUT2						\
  && (defined HAVE_GTK3 || (!defined USE_GTK && !defined USE_X_TOOLKIT))
      /* If a FocusIn event is received (because the window manager
	 sent us one), don't set the core focus if XInput 2 is
	 enabled, since that would mess up the device-specific focus
	 tracking.

	 The long looking preprocessor conditional only enables this
	 code on GTK 3 and no toolkit builds, since those are the only
	 builds where focus is tracked specific to each master device.
	 Other builds use core events and the client pointer to handle
	 focus, much like on a build without XInput 2.  */
      if (dpyinfo->supports_xi2)
	goto OTHER;
#endif
      x_detect_focus_change (dpyinfo, any, event, &inev.ie);
      goto OTHER;

    case MotionNotify:
      {
	XMotionEvent xmotion = event->xmotion;

        previous_help_echo_string = help_echo_string;
        help_echo_string = Qnil;

	if (hlinfo->mouse_face_hidden)
	  {
            hlinfo->mouse_face_hidden = false;
            clear_mouse_face (hlinfo);
          }

	f = mouse_or_wdesc_frame (dpyinfo, event->xmotion.window);

	if (f && event->xmotion.window == FRAME_X_WINDOW (f))
	  /* See the comment above x_compute_root_window_offset for
	     why this optimization is performed.  */
	  x_compute_root_window_offset (f, event->xmotion.x_root,
					event->xmotion.y_root,
					event->xmotion.x,
					event->xmotion.y);

	if (x_dnd_in_progress
	    /* Handle these events normally if the recursion
	       level is higher than when the drag-and-drop
	       operation was initiated.  This is so that mouse
	       input works while we're in the debugger for, say,
	       `x-dnd-movement-function`.  */
	    && (command_loop_level + minibuf_level
		<= x_dnd_recursion_depth)
	    && dpyinfo == FRAME_DISPLAY_INFO (x_dnd_frame))
	  {
	    Window target, toplevel;
	    int target_proto, motif_style;
	    xm_top_level_leave_message lmsg;
	    xm_top_level_enter_message emsg;
	    xm_drag_motion_message dmsg;
	    XRectangle *r;
	    bool was_frame;

	    /* Always clear mouse face.  */
	    clear_mouse_face (hlinfo);
	    hlinfo->mouse_face_hidden = true;

	    /* Sometimes the drag-and-drop operation starts with the
	       pointer of a frame invisible due to input.  Since
	       motion events are ignored during that, make the pointer
	       visible manually.  */

	    if (f)
	      {
		XTtoggle_invisible_pointer (f, false);

		r = &dpyinfo->last_mouse_glyph;

		/* Also remember the mouse glyph and set
		   mouse_moved.  */
		if (f != dpyinfo->last_mouse_glyph_frame
		    || event->xmotion.x < r->x
		    || event->xmotion.x >= r->x + r->width
		    || event->xmotion.y < r->y
		    || event->xmotion.y >= r->y + r->height)
		  {
		    f->mouse_moved = true;
		    f->last_mouse_device = Qnil;
		    dpyinfo->last_mouse_scroll_bar = NULL;

		    remember_mouse_glyph (f, event->xmotion.x,
					  event->xmotion.y, r);
		    dpyinfo->last_mouse_glyph_frame = f;
		  }
	      }

	    if (event->xmotion.same_screen)
	      target = x_dnd_get_target_window (dpyinfo,
						event->xmotion.x_root,
						event->xmotion.y_root,
						&target_proto,
						&motif_style, &toplevel,
						&was_frame);
	    else
	      target = x_dnd_fill_empty_target (&target_proto, &motif_style,
						&toplevel, &was_frame);

	    if (toplevel != x_dnd_last_seen_toplevel)
	      {
		if (toplevel != FRAME_OUTER_WINDOW (x_dnd_frame)
		    && x_dnd_return_frame == 1)
		  x_dnd_return_frame = 2;

		if (x_dnd_return_frame == 2
		    && x_any_window_to_frame (dpyinfo, toplevel))
		  {
		    if (x_dnd_last_seen_window != None
			&& x_dnd_last_protocol_version != -1
			&& x_dnd_last_seen_window != FRAME_OUTER_WINDOW (x_dnd_frame))
		      x_dnd_send_leave (x_dnd_frame, x_dnd_last_seen_window,
					x_dnd_last_seen_toplevel);
		    else if (x_dnd_last_seen_window != None
			     && XM_DRAG_STYLE_IS_DYNAMIC (x_dnd_last_motif_style)
			     && !x_dnd_disable_motif_drag
			     && x_dnd_last_seen_window != FRAME_OUTER_WINDOW (x_dnd_frame))
		      {
			if (!x_dnd_motif_setup_p)
			  xm_setup_drag_info (dpyinfo, x_dnd_frame);

			lmsg.reason = XM_DRAG_REASON (XM_DRAG_ORIGINATOR_INITIATOR,
						      XM_DRAG_REASON_TOP_LEVEL_LEAVE);
			lmsg.byteorder = XM_BYTE_ORDER_CUR_FIRST;
			lmsg.zero = 0;
			lmsg.timestamp = event->xmotion.time;
			lmsg.source_window = FRAME_X_WINDOW (x_dnd_frame);

			if (x_dnd_motif_setup_p)
			  xm_send_top_level_leave_message (dpyinfo, FRAME_X_WINDOW (x_dnd_frame),
							   x_dnd_last_seen_window, &lmsg);
		      }

		    x_dnd_end_window = x_dnd_last_seen_window;
		    x_dnd_last_seen_window = None;
		    x_dnd_last_seen_toplevel = None;
		    x_dnd_in_progress = false;
		    x_dnd_return_frame_object
		      = x_any_window_to_frame (dpyinfo, toplevel);
		    x_dnd_return_frame = 3;
		    x_dnd_waiting_for_finish = false;
		    target = None;
		  }
	      }

	    if (target != x_dnd_last_seen_window)
	      {
		if (x_dnd_last_seen_window != None
		    && x_dnd_last_protocol_version != -1
		    && x_dnd_last_seen_window != FRAME_OUTER_WINDOW (x_dnd_frame))
		  x_dnd_send_leave (x_dnd_frame, x_dnd_last_seen_window,
				    x_dnd_last_seen_toplevel);
		else if (x_dnd_last_seen_window != None
			 && XM_DRAG_STYLE_IS_DYNAMIC (x_dnd_last_motif_style)
			 && x_dnd_disable_motif_drag
			 && x_dnd_last_seen_window != FRAME_OUTER_WINDOW (x_dnd_frame))
		  {
		    if (!x_dnd_motif_setup_p)
		      xm_setup_drag_info (dpyinfo, x_dnd_frame);

		    /* This is apparently required.  If we don't send
		       a motion event with the current root window
		       coordinates of the pointer before the top level
		       leave, then Motif displays an ugly black border
		       around the previous drop site.  */

		    dmsg.reason = XM_DRAG_REASON (XM_DRAG_ORIGINATOR_INITIATOR,
						  XM_DRAG_REASON_DRAG_MOTION);
		    dmsg.byteorder = XM_BYTE_ORDER_CUR_FIRST;
		    dmsg.side_effects = XM_DRAG_SIDE_EFFECT (xm_side_effect_from_action (dpyinfo,
											 x_dnd_wanted_action),
							     XM_DROP_SITE_NONE, x_dnd_motif_operations,
							     XM_DROP_ACTION_DROP_CANCEL);
		    dmsg.timestamp = event->xmotion.time;
		    dmsg.x = event->xmotion.x_root;
		    dmsg.y = event->xmotion.y_root;

		    lmsg.reason = XM_DRAG_REASON (XM_DRAG_ORIGINATOR_INITIATOR,
						  XM_DRAG_REASON_TOP_LEVEL_LEAVE);
		    lmsg.byteorder = XM_BYTE_ORDER_CUR_FIRST;
		    lmsg.zero = 0;
		    lmsg.timestamp = event->xbutton.time;
		    lmsg.source_window = FRAME_X_WINDOW (x_dnd_frame);

		    if (x_dnd_motif_setup_p)
		      {
			xm_send_drag_motion_message (dpyinfo, FRAME_X_WINDOW (x_dnd_frame),
						     x_dnd_last_seen_window, &dmsg);
			xm_send_top_level_leave_message (dpyinfo, FRAME_X_WINDOW (x_dnd_frame),
							 x_dnd_last_seen_window, &lmsg);
		      }
		  }

		x_dnd_action = None;
		x_dnd_last_seen_toplevel = toplevel;
		x_dnd_last_seen_window = target;
		x_dnd_last_protocol_version = target_proto;
		x_dnd_last_motif_style = motif_style;
		x_dnd_last_window_is_frame = was_frame;

		if (target != None && x_dnd_last_protocol_version != -1)
		  x_dnd_send_enter (x_dnd_frame, target,
				    x_dnd_last_seen_toplevel,
				    x_dnd_last_protocol_version);
		else if (target != None && XM_DRAG_STYLE_IS_DYNAMIC (x_dnd_last_motif_style)
			 && !x_dnd_disable_motif_drag)
		  {
		    if (!x_dnd_motif_setup_p)
		      xm_setup_drag_info (dpyinfo, x_dnd_frame);

		    emsg.reason = XM_DRAG_REASON (XM_DRAG_ORIGINATOR_INITIATOR,
						  XM_DRAG_REASON_TOP_LEVEL_ENTER);
		    emsg.byteorder = XM_BYTE_ORDER_CUR_FIRST;
		    emsg.zero = 0;
		    emsg.timestamp = event->xbutton.time;
		    emsg.source_window = FRAME_X_WINDOW (x_dnd_frame);
		    emsg.index_atom = x_dnd_motif_atom;

		    if (x_dnd_motif_setup_p)
		      xm_send_top_level_enter_message (dpyinfo, FRAME_X_WINDOW (x_dnd_frame),
						       target, &emsg);
		  }
	      }
	    else
	      x_dnd_last_seen_toplevel = toplevel;

	    if (x_dnd_last_window_is_frame && target != None)
	      x_dnd_note_self_position (dpyinfo, target,
					event->xbutton.x_root,
					event->xbutton.y_root);
	    else if (x_dnd_last_protocol_version != -1 && target != None)
	      x_dnd_send_position (x_dnd_frame, target,
				   x_dnd_last_seen_toplevel,
				   x_dnd_last_protocol_version,
				   event->xmotion.x_root,
				   event->xmotion.y_root,
				   x_dnd_selection_timestamp,
				   x_dnd_wanted_action, 0,
				   event->xmotion.state);
	    else if (XM_DRAG_STYLE_IS_DYNAMIC (x_dnd_last_motif_style) && target != None
		     && !x_dnd_disable_motif_drag)
	      {
		if (!x_dnd_motif_setup_p)
		  xm_setup_drag_info (dpyinfo, x_dnd_frame);

		dmsg.reason = XM_DRAG_REASON (XM_DRAG_ORIGINATOR_INITIATOR,
					      XM_DRAG_REASON_DRAG_MOTION);
		dmsg.byteorder = XM_BYTE_ORDER_CUR_FIRST;
		dmsg.side_effects = XM_DRAG_SIDE_EFFECT (xm_side_effect_from_action (dpyinfo,
										     x_dnd_wanted_action),
							 XM_DROP_SITE_VALID, x_dnd_motif_operations,
							 (!x_dnd_xm_use_help
							  ? XM_DROP_ACTION_DROP
							  : XM_DROP_ACTION_DROP_HELP));
		dmsg.timestamp = event->xbutton.time;
		dmsg.x = event->xmotion.x_root;
		dmsg.y = event->xmotion.y_root;

		if (x_dnd_motif_setup_p)
		  xm_send_drag_motion_message (dpyinfo, FRAME_X_WINDOW (x_dnd_frame),
					       target, &dmsg);
	      }

	    x_dnd_update_tooltip_position (event->xmotion.x_root,
					   event->xmotion.y_root);

	    goto OTHER;
	  }

#ifdef USE_GTK
        if (f && xg_event_is_for_scrollbar (f, event, false))
          f = 0;
#endif
#ifdef HAVE_XWIDGETS
	struct xwidget_view *xvw;

	xvw = xwidget_view_from_window (event->xmotion.window);

	if (xvw)
	  xwidget_motion_or_crossing (xvw, event);
#endif
        if (f)
          {
	    /* Maybe generate a SELECT_WINDOW_EVENT for
	       `mouse-autoselect-window' but don't let popup menus
	       interfere with this (Bug#1261).  */
            if (!NILP (Vmouse_autoselect_window)
		&& !popup_activated ()
		/* Don't switch if we're currently in the minibuffer.
		   This tries to work around problems where the
		   minibuffer gets unselected unexpectedly, and where
		   you then have to move your mouse all the way down to
		   the minibuffer to select it.  */
		&& !MINI_WINDOW_P (XWINDOW (selected_window))
		/* With `focus-follows-mouse' non-nil create an event
		   also when the target window is on another frame.  */
		&& (f == XFRAME (selected_frame)
		    || !NILP (focus_follows_mouse)))
	      {
		static Lisp_Object last_mouse_window;

		if (xmotion.window != FRAME_X_WINDOW (f))
		  {
		    x_translate_coordinates (f, xmotion.x_root, xmotion.y_root,
					     &xmotion.x, &xmotion.y);
		    xmotion.window = FRAME_X_WINDOW (f);
		  }

		Lisp_Object window = window_from_coordinates
		  (f, xmotion.x, xmotion.y, 0, false, false, false);

		/* A window will be autoselected only when it is not
		   selected now and the last mouse movement event was
		   not in it.  The remainder of the code is a bit vague
		   wrt what a "window" is.  For immediate autoselection,
		   the window is usually the entire window but for GTK
		   where the scroll bars don't count.  For delayed
		   autoselection the window is usually the window's text
		   area including the margins.  */
		if (WINDOWP (window)
		    && !EQ (window, last_mouse_window)
		    && !EQ (window, selected_window))
		  {
		    inev.ie.kind = SELECT_WINDOW_EVENT;
		    inev.ie.frame_or_window = window;
		  }

		/* Remember the last window where we saw the mouse.  */
		last_mouse_window = window;
	      }

            if (!x_note_mouse_movement (f, &xmotion, Qnil))
	      help_echo_string = previous_help_echo_string;
          }
        else
          {
#ifndef USE_TOOLKIT_SCROLL_BARS
            struct scroll_bar *bar
              = x_window_to_scroll_bar (event->xmotion.display,
                                        event->xmotion.window, 2);

            if (bar)
              x_scroll_bar_note_movement (bar, &event->xmotion);
#endif /* USE_TOOLKIT_SCROLL_BARS */

            /* If we move outside the frame, then we're
               certainly no longer on any text in the frame.  */
            clear_mouse_face (hlinfo);
          }

        /* If the contents of the global variable help_echo_string
           has changed, generate a HELP_EVENT.  */
        if (!NILP (help_echo_string)
            || !NILP (previous_help_echo_string))
	  do_help = 1;

	if (f)
	  x_flush_dirty_back_buffer_on (f);
        goto OTHER;
      }

    case ConfigureNotify:
      /* An opaque move can generate a stream of events as the window
         is dragged around.  If the connection round trip time isn't
         really short, they may come faster than we can respond to
         them, given the multiple queries we can do to check window
         manager state, translate coordinates, etc.

         So if this ConfigureNotify is immediately followed by another
         for the same window, use the info from the latest update, and
         consider the events all handled.  */

      /* Opaque resize may be trickier; ConfigureNotify events are
         mixed with Expose events for multiple windows.  */
      configureEvent = *event;
      while (XPending (dpyinfo->display))
        {
          XNextEvent (dpyinfo->display, &next_event);
          if (next_event.type != ConfigureNotify
              || next_event.xconfigure.window != event->xconfigure.window
              /* Skipping events with different sizes can lead to a
                 mispositioned mode line at initial window creation.
                 Only drop window motion events for now.  */
              || next_event.xconfigure.width != event->xconfigure.width
              || next_event.xconfigure.height != event->xconfigure.height)
            {
              XPutBackEvent (dpyinfo->display, &next_event);
              break;
            }
          else
	    configureEvent = next_event;
        }

      /* If we get a ConfigureNotify for the root window, this means
	 the dimensions of the screen it's on changed.  */

      if (configureEvent.xconfigure.window == dpyinfo->root_window)
	{
#ifdef HAVE_XRANDR
	  /* This function is OK to call even if the X server doesn't
	     support RandR.  */
	  XRRUpdateConfiguration (&configureEvent);
#elif !defined USE_GTK
	  /* Catch screen size changes even if RandR is not available
	     on the client.  GTK does this internally.  */

	  if (configureEvent.xconfigure.width != dpyinfo->screen_width
	      || configureEvent.xconfigure.height != dpyinfo->screen_height)
	    {
	      /* Also avoid storing duplicate events here, since
		 Fx_display_monitor_attributes_list will return the
		 same information for both invocations of the
		 hook.  */
	      if (!x_find_monitors_changed_event (dpyinfo))
		{
		  inev.ie.kind = MONITORS_CHANGED_EVENT;
		  XSETTERMINAL (inev.ie.arg, dpyinfo->terminal);

		  /* Store this event now since inev.ie.type could be set to
		     MOVE_FRAME_EVENT later.  */
		  kbd_buffer_store_event (&inev.ie);
		  inev.ie.kind = NO_EVENT;
		}

	      /* Also update the position of the drag-and-drop
		 tooltip.  */
	      x_dnd_update_tooltip_now ();
	    }
#endif

	  dpyinfo->screen_width = configureEvent.xconfigure.width;
	  dpyinfo->screen_height = configureEvent.xconfigure.height;
	}

      if (x_dnd_in_progress && x_dnd_use_toplevels
	  && dpyinfo == FRAME_DISPLAY_INFO (x_dnd_frame))
	{
	  int rc, dest_x, dest_y;
	  Window child;
	  struct x_client_list_window *tem, *last = NULL;

	  for (tem = x_dnd_toplevels; tem; last = tem, tem = tem->next)
	    {
	      /* Not completely right, since the parent could be
		 unmapped, but good enough.  */

	      if (tem->window == configureEvent.xconfigure.window)
		{
		  x_catch_errors (dpyinfo->display);
		  rc = (XTranslateCoordinates (dpyinfo->display,
					       configureEvent.xconfigure.window,
					       dpyinfo->root_window,
					       -configureEvent.xconfigure.border_width,
					       -configureEvent.xconfigure.border_width,
					       &dest_x, &dest_y, &child)
			&& !x_had_errors_p (dpyinfo->display));
		  x_uncatch_errors_after_check ();

		  if (rc)
		    {
		      tem->x = dest_x;
		      tem->y = dest_y;
		      tem->width = (configureEvent.xconfigure.width
				    + configureEvent.xconfigure.border_width);
		      tem->height = (configureEvent.xconfigure.height
				     + configureEvent.xconfigure.border_width);
		    }
		  else
		    {
		      /* The window was probably destroyed, so get rid
			 of it.  */

		      if (!last)
			x_dnd_toplevels = tem->next;
		      else
			last->next = tem->next;

#ifdef HAVE_XSHAPE
		      if (tem->n_input_rects != -1)
			xfree (tem->input_rects);
		      if (tem->n_bounding_rects != -1)
			xfree (tem->bounding_rects);
#endif
		      xfree (tem);
		    }

		  break;
		}
	    }
	}

#if defined HAVE_GTK3 && defined USE_TOOLKIT_SCROLL_BARS
	  struct scroll_bar *bar = x_window_to_scroll_bar (dpyinfo->display,
							   configureEvent.xconfigure.window, 2);

	  /* There is really no other way to make GTK scroll bars fit
	     in the dimensions we want them to.  */
	  if (bar)
	    {
	      /* Skip all the pending configure events, not just the
		 ones where window motion occurred.  */
	      while (XPending (dpyinfo->display))
		{
		  XNextEvent (dpyinfo->display, &next_event);
		  if (next_event.type != ConfigureNotify
		      || next_event.xconfigure.window != event->xconfigure.window)
		    {
		      XPutBackEvent (dpyinfo->display, &next_event);
		      break;
		    }
		  else
		    configureEvent = next_event;
		}

	      if (configureEvent.xconfigure.width != max (bar->width, 1)
		  || configureEvent.xconfigure.height != max (bar->height, 1))
		{
		  XResizeWindow (dpyinfo->display, bar->x_window,
				 max (bar->width, 1), max (bar->height, 1));
		  x_flush (WINDOW_XFRAME (XWINDOW (bar->window)));
		}

#ifdef HAVE_XDBE
	      if (f && FRAME_X_DOUBLE_BUFFERED_P (f))
		x_drop_xrender_surfaces (f);
#endif

	      goto OTHER;
	    }
#endif

      f = x_top_window_to_frame (dpyinfo, configureEvent.xconfigure.window);

      /* This means we can no longer be certain of the root window
	 coordinates of any's edit window.  */
      if (any)
	FRAME_X_OUTPUT (any)->window_offset_certain_p = false;

      /* Unfortunately, we need to call x_drop_xrender_surfaces for
         _all_ ConfigureNotify events, otherwise we miss some and
         flicker.  Don't try to optimize these calls by looking only
         for size changes: that's not sufficient.  We miss some
         surface invalidations and flicker.  */
#ifdef HAVE_XDBE
      if (f && FRAME_X_DOUBLE_BUFFERED_P (f))
        x_drop_xrender_surfaces (f);
#endif
#if defined USE_CAIRO && !defined USE_GTK
      if (f)
	x_cr_update_surface_desired_size (f, configureEvent.xconfigure.width,
					  configureEvent.xconfigure.height);
      else if (any && configureEvent.xconfigure.window == FRAME_X_WINDOW (any))
	x_cr_update_surface_desired_size (any,
					  configureEvent.xconfigure.width,
					  configureEvent.xconfigure.height);
#endif

#if !defined USE_X_TOOLKIT && !defined USE_GTK

      /* Make the new size of the frame its opaque region.  This is a
	 region describing areas of the window which are always
	 guaranteed to be completely opaque and can be treated as such
	 by the compositor.  It is set to the width and height of the
	 only window in no-toolkit builds when `alpha_background' is
	 not set, and is cleared otherwise.  */

      if (f || (any && configureEvent.xconfigure.window
		== FRAME_OUTER_WINDOW (any)))
	x_update_opaque_region (f ? f : any, &configureEvent);

#endif /* !defined USE_X_TOOLKIT && !defined USE_GTK */

#ifdef USE_GTK
      if (!f
	  && (f = any)
	  && configureEvent.xconfigure.window == FRAME_X_WINDOW (f)
	  && (FRAME_VISIBLE_P (f)
	      || !(configureEvent.xconfigure.width <= 1
		   && configureEvent.xconfigure.height <= 1)))
        {

	  if (CONSP (frame_size_history))
	    frame_size_history_extra
	      (f, build_string ("ConfigureNotify"),
	       FRAME_PIXEL_WIDTH (f), FRAME_PIXEL_HEIGHT (f),
	       configureEvent.xconfigure.width,
	       configureEvent.xconfigure.height,
	       f->new_width, f->new_height);

#ifdef HAVE_XDBE
          if (FRAME_X_DOUBLE_BUFFERED_P (f))
            x_drop_xrender_surfaces (f);
#endif
          xg_frame_resized (f, configureEvent.xconfigure.width,
                            configureEvent.xconfigure.height);
#ifdef USE_CAIRO
	  x_cr_update_surface_desired_size (f, configureEvent.xconfigure.width,
					    configureEvent.xconfigure.height);
#endif
	  x_update_opaque_region (f, &configureEvent);
          f = 0;
	}
#endif
      if (f && (FRAME_VISIBLE_P (f)
		|| !(configureEvent.xconfigure.width <= 1
		     && configureEvent.xconfigure.height <= 1)))
	{
#ifdef USE_GTK
	  /* For GTK+ don't call x_net_wm_state for the scroll bar
	     window.  (Bug#24963, Bug#25887) */
	  if (configureEvent.xconfigure.window == FRAME_X_WINDOW (f))
#endif
	    x_net_wm_state (f, configureEvent.xconfigure.window);

#if defined USE_X_TOOLKIT || defined USE_GTK
          /* Tip frames are pure X window, set size for them.  */
          if (FRAME_TOOLTIP_P (f))
            {
              if (FRAME_PIXEL_HEIGHT (f) != configureEvent.xconfigure.height
                  || FRAME_PIXEL_WIDTH (f) != configureEvent.xconfigure.width)
		SET_FRAME_GARBAGED (f);

              FRAME_PIXEL_HEIGHT (f) = configureEvent.xconfigure.height;
              FRAME_PIXEL_WIDTH (f) = configureEvent.xconfigure.width;
            }
#endif

#ifndef USE_X_TOOLKIT
#ifndef USE_GTK
          int width = configureEvent.xconfigure.width;
          int height = configureEvent.xconfigure.height;

	  if (CONSP (frame_size_history))
	    frame_size_history_extra
	      (f, build_string ("ConfigureNotify"),
	       FRAME_PIXEL_WIDTH (f), FRAME_PIXEL_HEIGHT (f),
	       width, height, f->new_width, f->new_height);

	  /* In the toolkit version, change_frame_size
             is called by the code that handles resizing
             of the EmacsFrame widget.  */

          /* Even if the number of character rows and columns has
             not changed, the font size may have changed, so we need
             to check the pixel dimensions as well.  */

          if (width != FRAME_PIXEL_WIDTH (f)
              || height != FRAME_PIXEL_HEIGHT (f)
	      || (f->new_size_p
		  && ((f->new_width >= 0 && width != f->new_width)
		      || (f->new_height >= 0 && height != f->new_height))))
            {
              change_frame_size (f, width, height, false, true, false);
              x_clear_under_internal_border (f);
              SET_FRAME_GARBAGED (f);
              cancel_mouse_face (f);
            }
#endif /* not USE_GTK */
#endif

#ifdef USE_GTK
          /* GTK creates windows but doesn't map them.
             Only get real positions when mapped.  */
          if (FRAME_GTK_OUTER_WIDGET (f)
              && gtk_widget_get_mapped (FRAME_GTK_OUTER_WIDGET (f)))
#endif
	    {
	      int old_left = f->left_pos;
	      int old_top = f->top_pos;
	      Lisp_Object frame;

	      XSETFRAME (frame, f);

	      if (!FRAME_PARENT_FRAME (f))
		x_real_positions (f, &f->left_pos, &f->top_pos);
	      else
		{
		  Window root;
		  unsigned int dummy_uint;

		  XGetGeometry (FRAME_X_DISPLAY (f), FRAME_OUTER_WINDOW (f),
				&root, &f->left_pos, &f->top_pos,
				&dummy_uint, &dummy_uint, &dummy_uint, &dummy_uint);
		}

	      if (!FRAME_TOOLTIP_P (f)
		  && (old_left != f->left_pos || old_top != f->top_pos))
		{
		  inev.ie.kind = MOVE_FRAME_EVENT;
		  XSETFRAME (inev.ie.frame_or_window, f);
		}
	    }


#ifdef HAVE_X_I18N
	  if (f)
	    {
	      if (FRAME_XIC (f) && (FRAME_XIC_STYLE (f) & XIMStatusArea))
		xic_set_statusarea (f);

	      struct window *w = XWINDOW (f->selected_window);
	      xic_set_preeditarea (w, w->cursor.x, w->cursor.y);
	    }
#endif

#ifdef HAVE_XINPUT2
	  if (f && dpyinfo->supports_xi2)
	    {
	      Mouse_HLInfo *hlinfo;

	      /* The input extension doesn't report motion events when
		 the part of the window below the pointer changes.  To
		 avoid outdated information from keeping
		 i.e. mouse-highlight at the wrong position after the
		 frame is moved or resized, reset the mouse highlight
		 and last_mouse_motion_frame.  */

	      if (dpyinfo->last_mouse_motion_frame == f)
		dpyinfo->last_mouse_motion_frame = NULL;

	      hlinfo = MOUSE_HL_INFO (f);

	      if (hlinfo->mouse_face_mouse_frame == f)
		reset_mouse_highlight (hlinfo);
	    }
#endif

	}

      if (x_dnd_in_progress
	  && dpyinfo == FRAME_DISPLAY_INFO (x_dnd_frame))
	x_dnd_update_state (dpyinfo, dpyinfo->last_user_time);
      goto OTHER;

    case ButtonRelease:
    case ButtonPress:
      {
	if (event->xbutton.type == ButtonPress)
	  x_display_set_last_user_time (dpyinfo, event->xbutton.time,
					event->xbutton.send_event, true);

#ifdef HAVE_XWIDGETS
	struct xwidget_view *xvw;

	xvw = xwidget_view_from_window (event->xbutton.window);

	if (xvw)
	  {
	    xwidget_button (xvw, event->type == ButtonPress,
			    event->xbutton.x, event->xbutton.y,
			    event->xbutton.button, event->xbutton.state,
			    event->xbutton.time);

            if (!EQ (selected_window, xvw->w) && (event->xbutton.button < 4))
              {
		inev.ie.kind = SELECT_WINDOW_EVENT;
		inev.ie.frame_or_window = xvw->w;
	      }

	    *finish = X_EVENT_DROP;
	    goto OTHER;
	  }
#endif
        /* If we decide we want to generate an event to be seen
           by the rest of Emacs, we put it here.  */
        Lisp_Object tab_bar_arg = Qnil;
        bool tab_bar_p = false;
        bool tool_bar_p = false;
	bool dnd_grab = false;

	if (x_dnd_in_progress
	    /* Handle these events normally if the recursion
	       level is higher than when the drag-and-drop
	       operation was initiated.  This is so that mouse
	       input works while we're in the debugger for, say,
	       `x-dnd-movement-function`.  */
	    && (command_loop_level + minibuf_level
		<= x_dnd_recursion_depth)
	    && dpyinfo == FRAME_DISPLAY_INFO (x_dnd_frame))
	  {
	    f = mouse_or_wdesc_frame (dpyinfo, event->xbutton.window);

	    if (f && event->xbutton.window == FRAME_X_WINDOW (f))
	      /* See the comment above x_compute_root_window_offset
		 for why this optimization is performed.  */
	      x_compute_root_window_offset (f, event->xbutton.x_root,
					    event->xbutton.y_root,
					    event->xbutton.x,
					    event->xbutton.y);

	    if (event->type == ButtonPress)
	      {
		x_display_set_last_user_time (dpyinfo, event->xbutton.time,
					      event->xbutton.send_event, true);

		dpyinfo->grabbed |= (1 << event->xbutton.button);
		dpyinfo->last_mouse_frame = f;

		if (f)
		  f->last_tab_bar_item = -1;
#if ! defined (USE_GTK)
		if (f)
		  f->last_tool_bar_item = -1;
#endif /* not USE_GTK */
	      }
	    else
	      dpyinfo->grabbed &= ~(1 << event->xbutton.button);

	    if (event->xbutton.type == ButtonPress
		&& x_dnd_last_seen_window != None)
	      {
		if (x_dnd_last_window_is_frame)
		  x_dnd_note_self_wheel (dpyinfo,
					 x_dnd_last_seen_window,
					 event->xbutton.x_root,
					 event->xbutton.y_root,
					 event->xbutton.button,
					 event->xbutton.state,
					 event->xbutton.time);
		else if (x_dnd_last_protocol_version != -1)
		  x_dnd_send_position (x_dnd_frame,
				       x_dnd_last_seen_window,
				       x_dnd_last_seen_toplevel,
				       x_dnd_last_protocol_version,
				       event->xbutton.x_root,
				       event->xbutton.y_root,
				       event->xbutton.time,
				       x_dnd_wanted_action,
				       event->xbutton.button,
				       event->xbutton.state);

		goto OTHER;
	      }

	    if (event->xbutton.type == ButtonRelease)
	      {
		for (int i = 1; i < 8; ++i)
		  {
		    if (i != event->xbutton.button
			&& event->xbutton.state & (Button1Mask << (i - 1)))
		      dnd_grab = true;
		  }

		if (!dnd_grab)
		  {
		    x_dnd_end_window = x_dnd_last_seen_window;
		    x_dnd_in_progress = false;

		    if (x_dnd_update_tooltip
			&& FRAMEP (tip_frame)
			&& FRAME_LIVE_P (XFRAME (tip_frame))
			&& (FRAME_X_DISPLAY (XFRAME (tip_frame))
			    == FRAME_X_DISPLAY (x_dnd_frame)))
		      Fx_hide_tip ();

		    x_dnd_finish_frame = x_dnd_frame;

		    if (x_dnd_last_seen_window != None
			&& x_dnd_last_window_is_frame)
		      {
			x_dnd_waiting_for_finish = false;
			x_dnd_note_self_drop (dpyinfo,
					      x_dnd_last_seen_window,
					      event->xbutton.x_root,
					      event->xbutton.y_root,
					      event->xbutton.time);
		      }
		    else if (x_dnd_last_seen_window != None
			     && x_dnd_last_protocol_version != -1)
		      {
			x_dnd_pending_finish_target = x_dnd_last_seen_toplevel;
			x_dnd_waiting_for_finish_proto = x_dnd_last_protocol_version;

			x_dnd_waiting_for_finish
			  = x_dnd_do_drop (x_dnd_last_seen_window,
					   x_dnd_last_seen_toplevel,
					   x_dnd_last_protocol_version);
			x_dnd_finish_display = dpyinfo->display;
		      }
		    else if (x_dnd_last_seen_window != None)
		      {
			xm_drop_start_message dmsg;
			xm_drag_receiver_info drag_receiver_info;

			if (!xm_read_drag_receiver_info (dpyinfo, x_dnd_last_seen_window,
							 &drag_receiver_info)
			    && !x_dnd_disable_motif_protocol
			    && drag_receiver_info.protocol_style != XM_DRAG_STYLE_NONE
			    && (x_dnd_allow_current_frame
				|| x_dnd_last_seen_window != FRAME_OUTER_WINDOW (x_dnd_frame)))
			  {
			    if (!x_dnd_motif_setup_p)
			      xm_setup_drag_info (dpyinfo, x_dnd_frame);

			    if (x_dnd_motif_setup_p)
			      {
				memset (&dmsg, 0, sizeof dmsg);

				dmsg.reason = XM_DRAG_REASON (XM_DRAG_ORIGINATOR_INITIATOR,
							      XM_DRAG_REASON_DROP_START);
				dmsg.byte_order = XM_BYTE_ORDER_CUR_FIRST;
				dmsg.side_effects
				  = XM_DRAG_SIDE_EFFECT (xm_side_effect_from_action (dpyinfo,
										     x_dnd_wanted_action),
							 XM_DROP_SITE_VALID, x_dnd_motif_operations,
							 (!x_dnd_xm_use_help
							  ? XM_DROP_ACTION_DROP
							  : XM_DROP_ACTION_DROP_HELP));
				dmsg.timestamp = event->xbutton.time;
				dmsg.x = event->xbutton.x_root;
				dmsg.y = event->xbutton.y_root;
				dmsg.index_atom = x_dnd_motif_atom;
				dmsg.source_window = FRAME_X_WINDOW (x_dnd_frame);

				if (!XM_DRAG_STYLE_IS_DROP_ONLY (drag_receiver_info.protocol_style))
				  x_dnd_send_xm_leave_for_drop (FRAME_DISPLAY_INFO (x_dnd_frame),
								x_dnd_frame, x_dnd_last_seen_window,
								event->xbutton.time);

				xm_send_drop_message (dpyinfo, FRAME_X_WINDOW (x_dnd_frame),
						      x_dnd_last_seen_window, &dmsg);

				x_dnd_waiting_for_finish = true;
				x_dnd_waiting_for_motif_finish_display = dpyinfo;
				x_dnd_waiting_for_motif_finish = 1;
				x_dnd_finish_display = dpyinfo->display;
			      }
			  }
			else
			  x_dnd_send_unsupported_drop (dpyinfo, (x_dnd_last_seen_toplevel != None
								 ? x_dnd_last_seen_toplevel
								 : x_dnd_last_seen_window),
						       event->xbutton.x_root, event->xbutton.y_root,
						       event->xbutton.time);
		      }
		    else if (x_dnd_last_seen_toplevel != None)
		      x_dnd_send_unsupported_drop (dpyinfo, x_dnd_last_seen_toplevel,
						   event->xbutton.x_root,
						   event->xbutton.y_root,
						   event->xbutton.time);


		    x_dnd_last_protocol_version = -1;
		    x_dnd_last_motif_style = XM_DRAG_STYLE_NONE;
		    x_dnd_last_seen_window = None;
		    x_dnd_last_seen_toplevel = None;
		    x_dnd_last_window_is_frame = false;
		    x_dnd_frame = NULL;
		  }
	      }

	    goto OTHER;
	  }

	if (x_dnd_in_progress
	    && (command_loop_level + minibuf_level
		<= x_dnd_recursion_depth))
	  goto OTHER;

	memset (&compose_status, 0, sizeof (compose_status));
	dpyinfo->last_mouse_glyph_frame = NULL;

	f = mouse_or_wdesc_frame (dpyinfo, event->xbutton.window);

	if (f && event->xbutton.window == FRAME_X_WINDOW (f))
	  /* See the comment above x_compute_root_window_offset
	     for why this optimization is performed.  */
	  x_compute_root_window_offset (f, event->xbutton.x_root,
					event->xbutton.y_root,
					event->xbutton.x,
					event->xbutton.y);

	if (f && event->xbutton.type == ButtonPress
	    && !popup_activated ()
	    && !x_window_to_scroll_bar (event->xbutton.display,
					event->xbutton.window, 2)
	    && !FRAME_NO_ACCEPT_FOCUS (f))
	  {
	    /* When clicking into a child frame or when clicking
	       into a parent frame with the child frame selected and
	       `no-accept-focus' is not set, select the clicked
	       frame.  */
	    struct frame *hf = dpyinfo->highlight_frame;

	    if (FRAME_PARENT_FRAME (f) || (hf && frame_ancestor_p (f, hf)))
	      {
		x_ignore_errors_for_next_request (dpyinfo, 0);
		XSetInputFocus (FRAME_X_DISPLAY (f), FRAME_OUTER_WINDOW (f),
				RevertToParent, event->xbutton.time);
	        x_stop_ignoring_errors (dpyinfo);

		if (FRAME_PARENT_FRAME (f))
		  XRaiseWindow (FRAME_X_DISPLAY (f), FRAME_OUTER_WINDOW (f));
	      }
	  }

#ifdef USE_GTK
	if (!f)
	  {
	    f = x_any_window_to_frame (dpyinfo, event->xbutton.window);

	    if (event->xbutton.button > 3
		&& event->xbutton.button < 8
		&& f)
	      {
		if (ignore_next_mouse_click_timeout
		    && dpyinfo == mouse_click_timeout_display)
		  {
		    if (event->type == ButtonPress
			&& event->xbutton.time > ignore_next_mouse_click_timeout)
		      {
			ignore_next_mouse_click_timeout = 0;
			x_construct_mouse_click (&inev.ie, &event->xbutton,
			                         f, false);
		      }
		    if (event->type == ButtonRelease)
		      ignore_next_mouse_click_timeout = 0;
		  }
		else
		  x_construct_mouse_click (&inev.ie, &event->xbutton, f, false);

		*finish = X_EVENT_DROP;
		goto OTHER;
	      }
	    else
	      f = NULL;
	  }

        if (f && xg_event_is_for_scrollbar (f, event, false))
          f = 0;
#endif
        if (f)
          {
            /* Is this in the tab-bar?  */
            if (WINDOWP (f->tab_bar_window)
                && WINDOW_TOTAL_LINES (XWINDOW (f->tab_bar_window)))
              {
                Lisp_Object window;
                int x = event->xbutton.x;
                int y = event->xbutton.y;

                window = window_from_coordinates (f, x, y, 0, true, true, true);
                tab_bar_p = EQ (window, f->tab_bar_window);

                if (tab_bar_p)
		  {
		    tab_bar_arg = handle_tab_bar_click
		      (f, x, y, event->xbutton.type == ButtonPress,
		       x_x_to_emacs_modifiers (dpyinfo, event->xbutton.state));
		    x_flush_dirty_back_buffer_on (f);
		  }
              }

#if ! defined (USE_GTK)
            /* Is this in the tool-bar?  */
            if (WINDOWP (f->tool_bar_window)
                && WINDOW_TOTAL_LINES (XWINDOW (f->tool_bar_window)))
              {
                Lisp_Object window;
                int x = event->xbutton.x;
                int y = event->xbutton.y;

                window = window_from_coordinates (f, x, y, 0, true, true, true);
                tool_bar_p = (EQ (window, f->tool_bar_window)
			      && (event->xbutton.type != ButtonRelease
				  || f->last_tool_bar_item != -1));

                if (tool_bar_p && event->xbutton.button < 4)
		  {
		    handle_tool_bar_click
		      (f, x, y, event->xbutton.type == ButtonPress,
		       x_x_to_emacs_modifiers (dpyinfo, event->xbutton.state));
		    x_flush_dirty_back_buffer_on (f);
		  }
              }
#endif /* !USE_GTK */

            if (!(tab_bar_p && NILP (tab_bar_arg)) && !tool_bar_p)
#if defined (USE_X_TOOLKIT) || defined (USE_GTK)
              if (! popup_activated ())
#endif
                {
                  if (ignore_next_mouse_click_timeout
		      && dpyinfo == mouse_click_timeout_display)
                    {
                      if (event->type == ButtonPress
                          && event->xbutton.time > ignore_next_mouse_click_timeout)
                        {
                          ignore_next_mouse_click_timeout = 0;
                          x_construct_mouse_click (&inev.ie, &event->xbutton,
                                                   f, false);
                        }
                      if (event->type == ButtonRelease)
                        ignore_next_mouse_click_timeout = 0;
                    }
                  else
                    x_construct_mouse_click (&inev.ie, &event->xbutton,
                                             f, false);

		  if (!NILP (tab_bar_arg))
		    inev.ie.arg = tab_bar_arg;
                }

            if (FRAME_X_EMBEDDED_P (f)
		&& !FRAME_NO_ACCEPT_FOCUS (f))
              xembed_send_message (f, event->xbutton.time,
                                   XEMBED_REQUEST_FOCUS, 0, 0, 0);
          }
        else
          {
            struct scroll_bar *bar
              = x_window_to_scroll_bar (event->xbutton.display,
                                        event->xbutton.window, 2);

#ifdef USE_TOOLKIT_SCROLL_BARS
            /* Make the "Ctrl-Mouse-2 splits window" work for toolkit
               scroll bars.  */
            if (bar && event->xbutton.state & ControlMask)
              {
                x_scroll_bar_handle_click (bar, event, &inev.ie, Qnil);
                *finish = X_EVENT_DROP;
              }
#else /* not USE_TOOLKIT_SCROLL_BARS */
            if (bar)
              x_scroll_bar_handle_click (bar, event, &inev.ie, Qnil);
#endif /* not USE_TOOLKIT_SCROLL_BARS */
          }

        if (event->type == ButtonPress)
          {
            dpyinfo->grabbed |= (1 << event->xbutton.button);
            dpyinfo->last_mouse_frame = f;
            if (f && !tab_bar_p)
              f->last_tab_bar_item = -1;
#if ! defined (USE_GTK)
            if (f && !tool_bar_p)
              f->last_tool_bar_item = -1;
#endif /* not USE_GTK */
          }
        else
          dpyinfo->grabbed &= ~(1 << event->xbutton.button);

	/* Ignore any mouse motion that happened before this event;
	   any subsequent mouse-movement Emacs events should reflect
	   only motion after the ButtonPress/Release.  */
	if (f != 0)
	  f->mouse_moved = false;

#if defined (USE_X_TOOLKIT) || defined (USE_GTK)
        f = x_menubar_window_to_frame (dpyinfo, event);
        /* For a down-event in the menu bar, don't pass it to Xt or
           GTK right away.  Instead, save it and pass it to Xt or GTK
           from kbd_buffer_get_event.  That way, we can run some Lisp
           code first.  */
        if (! popup_activated ()
#ifdef USE_GTK
            /* Gtk+ menus only react to the first three buttons. */
            && event->xbutton.button < 3
#endif
            && f && event->type == ButtonPress
            /* Verify the event is really within the menu bar
               and not just sent to it due to grabbing.  */
            && event->xbutton.x >= 0
            && event->xbutton.x < FRAME_PIXEL_WIDTH (f)
            && event->xbutton.y >= 0
            && event->xbutton.y < FRAME_MENUBAR_HEIGHT (f)
            && event->xbutton.same_screen)
          {
#ifdef USE_MOTIF
	    Widget widget;

	    widget = XtWindowToWidget (dpyinfo->display,
				       event->xbutton.window);

	    if (widget && XmIsCascadeButton (widget)
		&& XtIsSensitive (widget))
	      {
#endif
		if (!f->output_data.x->saved_menu_event)
		  f->output_data.x->saved_menu_event = xmalloc (sizeof *event);
		*f->output_data.x->saved_menu_event = *event;
		inev.ie.kind = MENU_BAR_ACTIVATE_EVENT;
		XSETFRAME (inev.ie.frame_or_window, f);
		*finish = X_EVENT_DROP;
#ifdef USE_MOTIF
	      }
#endif
          }
        else
          goto OTHER;
#endif /* USE_X_TOOLKIT || USE_GTK */
      }
      break;

    case CirculateNotify:
      if (x_dnd_in_progress
	  /* When _NET_WM_CLIENT_LIST stacking is being used, changes
	     in that property are watched for, and it's not necessary
	     to update the state in response to ordinary window
	     substructure events.  */
	  && !x_dnd_use_toplevels
	  && dpyinfo == FRAME_DISPLAY_INFO (x_dnd_frame))
	x_dnd_update_state (dpyinfo, dpyinfo->last_user_time);
      goto OTHER;

    case CirculateRequest:
      goto OTHER;

    case VisibilityNotify:
      f = x_top_window_to_frame (dpyinfo, event->xvisibility.window);

      if (f)
	FRAME_X_OUTPUT (f)->visibility_state = event->xvisibility.state;

      goto OTHER;

    case MappingNotify:
      /* Someone has changed the keyboard mapping - update the
         local cache.  */
      switch (event->xmapping.request)
        {
        case MappingModifier:
          x_find_modifier_meanings (dpyinfo);
	  FALLTHROUGH;
        case MappingKeyboard:
          XRefreshKeyboardMapping ((XMappingEvent *) &event->xmapping);
        }
      goto OTHER;

    case DestroyNotify:
      if (event->xdestroywindow.window
	  == dpyinfo->net_supported_window)
	dpyinfo->net_supported_window = None;

      if (event->xdestroywindow.window
	  == dpyinfo->motif_drag_window)
	/* We get DestroyNotify events for the drag window because
	   x_special_window_exists_p selects for structure
	   notification.  The drag window is not supposed to go away
	   but not all clients obey that requirement when setting the
	   drag window property.  */
	dpyinfo->motif_drag_window = None;

      xft_settings_event (dpyinfo, event);
      break;

#ifdef HAVE_XINPUT2
    case GenericEvent:
      {
	if (!dpyinfo->supports_xi2)
	  goto OTHER;

	if (event->xgeneric.extension != dpyinfo->xi2_opcode)
	  /* Not an XI2 event. */
	  goto OTHER;

	bool must_free_data = false;
	XIEvent *xi_event = (XIEvent *) event->xcookie.data;

	/* Sometimes the event is already claimed by GTK, which
	   will free its data in due course. */
	if (!xi_event)
	  {
	    if (XGetEventData (dpyinfo->display, &event->xcookie))
	      must_free_data = true;

	    xi_event = (XIEvent *) event->xcookie.data;
	  }

	XIDeviceEvent *xev = (XIDeviceEvent *) xi_event;

	if (!xi_event)
	  {
	    /* It may turn out that the event data has already been
	       implicitly freed for various reasons up to and
	       including XMenuActivate pushing some other event onto
	       the foreign-event queue, or x_menu_wait_for_events
	       calling XNextEvent through a timer that tries to wait
	       for input.

	       In that case, XGetEventData will return True, but
	       cookie->data will be NULL.  Since handling such input
	       events is not really important, we can afford to
	       discard them.

	       The way Xlib is currently implemented makes calling
	       XFreeEventData unnecessary in this case, but call it
	       anyway, since not doing so may lead to a memory leak in
	       the future.  */

	    if (must_free_data)
	      XFreeEventData (dpyinfo->display, &event->xcookie);
	    goto OTHER;
	  }

	switch (event->xcookie.evtype)
	  {
	    /* XI focus events aren't employed under X toolkit or GTK+
	       2.x because windows created by these two toolkits are
	       incompatible with input extension focus events.  */
#if !defined USE_X_TOOLKIT && (!defined USE_GTK || defined HAVE_GTK3)
	  case XI_FocusIn:
	    {
	      XIFocusInEvent *focusin;

	      focusin = (XIFocusInEvent *) xi_event;
	      any = x_any_window_to_frame (dpyinfo, focusin->event);

#ifdef USE_GTK
	      /* Some WMs (e.g. Mutter in Gnome Shell), don't unmap
		 minimized/iconified windows; thus, for those WMs we
		 won't get a MapNotify when unminimizing/deiconifying.
		 Check here if we are deiconizing a window (Bug42655).

		 But don't do that by default on GTK since it may
		 cause a plain invisible frame get reported as
		 iconified, compare
		 https://lists.gnu.org/archive/html/emacs-devel/2017-02/msg00133.html.
		 That is fixed above but bites us here again.

		 The option x_set_frame_visibility_more_laxly enables
		 overriding the default behavior (Bug#49955,
		 Bug#53298).  */
	      if (EQ (x_set_frame_visibility_more_laxly, Qfocus_in)
		  || EQ (x_set_frame_visibility_more_laxly, Qt))
#endif /* USE_GTK */
		{
		  f = any;
		  if (f && FRAME_ICONIFIED_P (f))
		    {
		      SET_FRAME_VISIBLE (f, 1);
		      SET_FRAME_ICONIFIED (f, false);
		      f->output_data.x->has_been_visible = true;
		      inev.ie.kind = DEICONIFY_EVENT;
		      XSETFRAME (inev.ie.frame_or_window, f);
		    }
		}

	      xi_focus_handle_for_device (dpyinfo, any, xi_event);

	      goto XI_OTHER;
	    }

	  case XI_FocusOut:
	    {
	      XIFocusOutEvent *focusout;

	      focusout = (XIFocusOutEvent *) xi_event;
	      any = x_any_window_to_frame (dpyinfo, focusout->event);
	      xi_focus_handle_for_device (dpyinfo, any, xi_event);

	      goto XI_OTHER;
	    }
#endif /* !USE_X_TOOLKIT && (!USE_GTK || HAVE_GTK3) */

	  case XI_Enter:
	    {
	      XIEnterEvent *enter = (XIEnterEvent *) xi_event;
	      XMotionEvent ev;
	      struct xi_device_t *source;

	      any = x_top_window_to_frame (dpyinfo, enter->event);
	      source = xi_device_from_id (dpyinfo, enter->sourceid);

	      ev.x = lrint (enter->event_x);
	      ev.y = lrint (enter->event_y);
	      ev.window = enter->event;
	      ev.time = enter->time;
	      ev.send_event = enter->send_event;

	      x_display_set_last_user_time (dpyinfo, enter->time,
					    enter->send_event, false);

#ifdef USE_MOTIF
	      use_copy = true;

	      copy.xcrossing.type = EnterNotify;
	      copy.xcrossing.serial = enter->serial;
	      copy.xcrossing.send_event = enter->send_event;
	      copy.xcrossing.display = dpyinfo->display;
	      copy.xcrossing.window = enter->event;
	      copy.xcrossing.root = enter->root;
	      copy.xcrossing.subwindow = enter->child;
	      copy.xcrossing.time = enter->time;
	      copy.xcrossing.x = lrint (enter->event_x);
	      copy.xcrossing.y = lrint (enter->event_y);
	      copy.xcrossing.x_root = lrint (enter->root_x);
	      copy.xcrossing.y_root = lrint (enter->root_y);
	      copy.xcrossing.mode = enter->mode;
	      copy.xcrossing.detail = enter->detail;
	      copy.xcrossing.focus = enter->focus;
	      copy.xcrossing.state = 0;
	      copy.xcrossing.same_screen = True;
#endif

	      /* There is no need to handle entry/exit events for
		 passive focus from non-top windows at all, since they
		 are an inferiors of the frame's top window, which will
		 get virtual events.  */

#if !defined USE_X_TOOLKIT && (!defined USE_GTK || defined HAVE_GTK3)
	      if (any)
		xi_focus_handle_for_device (dpyinfo, any, xi_event);
#endif /* !USE_X_TOOLKIT && (!USE_GTK || HAVE_GTK3) */

	      if (!any)
		any = x_any_window_to_frame (dpyinfo, enter->event);

#ifdef HAVE_XINPUT2_1
	      /* xfwm4 selects for button events on the frame window,
		 resulting in passive grabs being generated along with
		 the delivery of emulated button events; this then
		 interferes with scrolling, since device valuators
		 will constantly be reset as the crossing events
		 related to those grabs arrive.  The only way to
		 remedy this is to never reset scroll valuators on a
		 grab-related crossing event.  (bug#57476) */

	      if (enter->mode != XINotifyUngrab
		  && enter->mode != XINotifyGrab
		  && enter->mode != XINotifyPassiveGrab
		  && enter->mode != XINotifyPassiveUngrab)
		xi_reset_scroll_valuators_for_device_id (dpyinfo,
							 enter->deviceid);
#endif

	      {
#ifdef HAVE_XWIDGETS
		struct xwidget_view *xwidget_view;

		xwidget_view = xwidget_view_from_window (enter->event);

		if (xwidget_view)
		  {
		    xwidget_motion_or_crossing (xwidget_view, event);

		    goto XI_OTHER;
		  }
#endif
	      }

	      f = any;

	      if (f && enter->event == FRAME_X_WINDOW (f))
		xi_compute_root_window_offset_enter (f, enter);

	      if (f && x_mouse_click_focus_ignore_position)
		{
		  ignore_next_mouse_click_timeout = (enter->time
						     + x_mouse_click_focus_ignore_time);
		  mouse_click_timeout_display = dpyinfo;
		}

	      /* EnterNotify counts as mouse movement,
		 so update things that depend on mouse position.  */
	      if (f && !f->output_data.x->hourglass_p)
		x_note_mouse_movement (f, &ev, source ? source->name : Qnil);
#ifdef USE_GTK
	      /* We may get an EnterNotify on the buttons in the toolbar.  In that
		 case we moved out of any highlighted area and need to note this.  */
	      if (!f && dpyinfo->last_mouse_glyph_frame)
		x_note_mouse_movement (dpyinfo->last_mouse_glyph_frame, &ev,
				       source ? source->name : Qnil);
#endif
	      goto XI_OTHER;
	    }

	  case XI_Leave:
	    {
	      XILeaveEvent *leave;
	      struct xi_device_t *device;

	      leave = (XILeaveEvent *) xi_event;
#ifdef USE_GTK
	      struct xi_device_t *source;
	      XMotionEvent ev;

	      ev.x = lrint (leave->event_x);
	      ev.y = lrint (leave->event_y);
	      ev.window = leave->event;
	      ev.time = leave->time;
	      ev.send_event = leave->send_event;
#endif

	      any = x_top_window_to_frame (dpyinfo, leave->event);

#ifdef USE_GTK
	      source = xi_device_from_id (dpyinfo, leave->sourceid);
#endif
	      device = xi_device_from_id (dpyinfo, leave->deviceid);

	      if (device)
		xi_report_motion_window_clear (device);

	      /* This allows us to catch LeaveNotify events generated by
		 popup menu grabs.  FIXME: this is right when there is a
		 focus menu, but implicit focus tracking can get screwed
		 up if we get this and no XI_Enter event later.   */

#ifdef USE_X_TOOLKIT
	      if (popup_activated ()
		  && (leave->mode == XINotifyPassiveUngrab
		      || leave->mode == XINotifyUngrab))
		any = x_any_window_to_frame (dpyinfo, leave->event);
#endif

#ifdef USE_MOTIF
	      use_copy = true;

	      copy.xcrossing.type = LeaveNotify;
	      copy.xcrossing.serial = leave->serial;
	      copy.xcrossing.send_event = leave->send_event;
	      copy.xcrossing.display = dpyinfo->display;
	      copy.xcrossing.window = leave->event;
	      copy.xcrossing.root = leave->root;
	      copy.xcrossing.subwindow = leave->child;
	      copy.xcrossing.time = leave->time;
	      copy.xcrossing.x = lrint (leave->event_x);
	      copy.xcrossing.y = lrint (leave->event_y);
	      copy.xcrossing.x_root = lrint (leave->root_x);
	      copy.xcrossing.y_root = lrint (leave->root_y);
	      copy.xcrossing.mode = leave->mode;
	      copy.xcrossing.detail = leave->detail;
	      copy.xcrossing.focus = leave->focus;
	      copy.xcrossing.state = 0;
	      copy.xcrossing.same_screen = True;
#endif

	      /* One problem behind the design of XInput 2 scrolling is
		 that valuators are not unique to each window, but only
		 the window that has grabbed the valuator's device or
		 the window that the device's pointer is on top of can
		 receive motion events.  There is also no way to
		 retrieve the value of a valuator outside of each motion
		 event.

		 As such, to prevent wildly inaccurate results when
		 the valuators have changed outside Emacs, we reset
		 our records of each valuator's value whenever the
		 pointer moves out of a frame.  Ideally, this would
		 ignore events with a detail of XINotifyInferior, as
		 the window the pointer moved to would be one known to
		 Emacs, but the code to keep track of which valuators
		 had to be reset upon the corresponding XI_Enter event
		 was very complicated and kept running into server
		 bugs.  */
#ifdef HAVE_XINPUT2_1
	      /* xfwm4 selects for button events on the frame window,
		 resulting in passive grabs being generated along with
		 the delivery of emulated button events; this then
		 interferes with scrolling, since device valuators
		 will constantly be reset as the crossing events
		 related to those grabs arrive.  The only way to
		 remedy this is to never reset scroll valuators on a
		 grab-related crossing event.  (bug#57476) */

	      if (leave->mode != XINotifyUngrab
		  && leave->mode != XINotifyGrab
		  && leave->mode != XINotifyPassiveUngrab
		  && leave->mode != XINotifyPassiveGrab)
		xi_reset_scroll_valuators_for_device_id (dpyinfo,
							 leave->deviceid);
#endif

	      x_display_set_last_user_time (dpyinfo, leave->time,
					    leave->send_event, false);

#ifdef HAVE_XWIDGETS
	      {
		struct xwidget_view *xvw;

		xvw = xwidget_view_from_window (leave->event);

		if (xvw)
		  {
		    *finish = X_EVENT_DROP;
		    xwidget_motion_or_crossing (xvw, event);

		    goto XI_OTHER;
		  }
	      }
#endif

#if !defined USE_X_TOOLKIT && (!defined USE_GTK || defined HAVE_GTK3)
	      if (any)
		xi_focus_handle_for_device (dpyinfo, any, xi_event);
#endif /* !USE_X_TOOLKIT && (!USE_GTK || HAVE_GTK3) */

#ifndef USE_X_TOOLKIT
	      f = x_top_window_to_frame (dpyinfo, leave->event);
#else
	      /* On Xt builds that have XI2, the enter and leave event
		 masks are set on the frame widget's window.  */
	      f = x_window_to_frame (dpyinfo, leave->event);

	      if (!f)
		f = x_top_window_to_frame (dpyinfo, leave->event);
#endif

	      if (f)
		{
		  /* Now clear dpyinfo->last_mouse_motion_frame, or
		     gui_redo_mouse_highlight will end up highlighting
		     the last known position of the mouse if a
		     tooltip frame is later unmapped.  */

		  if (f == dpyinfo->last_mouse_motion_frame)
		    dpyinfo->last_mouse_motion_frame = NULL;

		  /* Something similar applies to
		     dpyinfo->last_mouse_glyph_frame.  */
		  if (f == dpyinfo->last_mouse_glyph_frame)
		    dpyinfo->last_mouse_glyph_frame = NULL;

		  if (f == hlinfo->mouse_face_mouse_frame)
		    {
		      /* If we move outside the frame, then we're
			 certainly no longer on any text in the frame.  */
		      clear_mouse_face (hlinfo);
		      hlinfo->mouse_face_mouse_frame = 0;
		      x_flush_dirty_back_buffer_on (f);
		    }

		  /* Generate a nil HELP_EVENT to cancel a help-echo.
		     Do it only if there's something to cancel.
		     Otherwise, the startup message is cleared when
		     the mouse leaves the frame.  */
		  if (any_help_event_p
		      /* But never if `mouse-drag-and-drop-region' is
			 in progress, since that results in the
			 tooltip being dismissed when the mouse moves
			 on top.  */
		      && !((EQ (track_mouse, Qdrag_source)
			    || EQ (track_mouse, Qdropping))
			   && gui_mouse_grabbed (dpyinfo)))
		    do_help = -1;

		  if (f && leave->event == FRAME_X_WINDOW (f))
		    xi_compute_root_window_offset_enter (f, leave);
		}
#ifdef USE_GTK
	      /* See comment in EnterNotify above */
	      else if (dpyinfo->last_mouse_glyph_frame)
		x_note_mouse_movement (dpyinfo->last_mouse_glyph_frame, &ev,
				       source ? source->name : Qnil);
#endif
	      goto XI_OTHER;
	    }

	  case XI_Motion:
	    {
	      struct xi_device_t *device, *source;
#ifdef HAVE_XINPUT2_1
	      XIValuatorState *states;
	      double *values;
	      bool found_valuator = false;
	      bool other_valuators_found = false;
#endif
	      /* A fake XMotionEvent for x_note_mouse_movement. */
	      XMotionEvent ev;
	      xm_top_level_leave_message lmsg;
	      xm_top_level_enter_message emsg;
	      xm_drag_motion_message dmsg;
	      unsigned int dnd_state;

	      source = xi_device_from_id (dpyinfo, xev->sourceid);

#ifdef HAVE_XINPUT2_1
	      states = &xev->valuators;
	      values = states->values;
#endif

	      device = xi_device_from_id (dpyinfo, xev->deviceid);

	      if (!device)
		goto XI_OTHER;

#ifdef HAVE_XINPUT2_2
	      if (xev->flags & XIPointerEmulated)
		goto XI_OTHER;
#endif

#ifdef HAVE_XINPUT2_1
#ifdef HAVE_XWIDGETS
	      struct xwidget_view *xv = xwidget_view_from_window (xev->event);
	      double xv_total_x = 0.0;
	      double xv_total_y = 0.0;
#endif
	      double total_x = 0.0;
	      double total_y = 0.0;

	      int real_x, real_y;

	      for (int i = 0; i < states->mask_len * 8; i++)
		{
		  if (XIMaskIsSet (states->mask, i))
		    {
		      struct xi_scroll_valuator_t *val;
		      double delta, scroll_unit;
		      int scroll_height;
		      Lisp_Object window;
		      struct scroll_bar *bar;

		      bar = NULL;

		      /* See the comment on top of x_cache_xi_devices
			 for more details on how scroll wheel movement
			 is reported on XInput 2.  */
		      delta = x_get_scroll_valuator_delta (dpyinfo, device,
							   i, *values, &val);
		      values++;

		      if (!val)
			{
			  other_valuators_found = true;
			  continue;
			}

		      if (delta != DBL_MAX)
			{
			  if (!f)
			    {
			      f = x_any_window_to_frame (dpyinfo, xev->event);

			      if (!f)
				{
#if defined USE_MOTIF || !defined USE_TOOLKIT_SCROLL_BARS
				  bar = x_window_to_scroll_bar (dpyinfo->display,
								xev->event, 2);

				  if (bar)
				    f = WINDOW_XFRAME (XWINDOW (bar->window));

				  if (!f)
#endif
				    goto XI_OTHER;
				}
			    }

#ifdef USE_GTK
			  if (f && xg_event_is_for_scrollbar (f, event, true))
			    *finish = X_EVENT_DROP;
#endif

			  if (FRAME_X_WINDOW (f) != xev->event)
			    {
			      if (!bar)
				bar = x_window_to_scroll_bar (dpyinfo->display, xev->event, 2);

			      /* If this is a scroll bar, compute the
				 actual position directly to avoid an
				 extra roundtrip.  */

			      if (bar)
				{
				  real_x = lrint (xev->event_x + bar->left);
				  real_y = lrint (xev->event_y + bar->top);
				}
			      else
			        x_translate_coordinates (f,
							 lrint (xev->root_x),
							 lrint (xev->root_y),
							 &real_x, &real_y);
			    }
			  else
			    {
			      real_x = lrint (xev->event_x);
			      real_y = lrint (xev->event_y);
			    }

#ifdef HAVE_XWIDGETS
			  if (xv)
			    {
			      if (val->horizontal)
				xv_total_x += delta;
			      else
				xv_total_y += delta;

			      found_valuator = true;
			      continue;
			    }
#endif

			  if (delta == 0.0)
			    found_valuator = true;

			  if (signbit (delta) != signbit (val->emacs_value))
			    val->emacs_value = 0;

			  val->emacs_value += delta;

			  if (mwheel_coalesce_scroll_events
			      && (fabs (val->emacs_value) < 1)
			      && (fabs (delta) > 0))
			    continue;

			  window = window_from_coordinates (f, real_x, real_y, NULL,
							    false, false, false);

			  if (WINDOWP (window))
			    scroll_height = XWINDOW (window)->pixel_height;
			  else
			    /* EVENT_X and EVENT_Y can be outside the
			       frame if F holds the input grab, so fall
			       back to the height of the frame instead.  */
			    scroll_height = FRAME_PIXEL_HEIGHT (f);

			  scroll_unit = pow (scroll_height, 2.0 / 3.0);

			  if (NUMBERP (Vx_scroll_event_delta_factor))
			    scroll_unit *= XFLOATINT (Vx_scroll_event_delta_factor);

			  if (val->horizontal)
			    total_x += val->emacs_value * scroll_unit;
			  else
			    total_y += val->emacs_value * scroll_unit;

			  found_valuator = true;
			  val->emacs_value = 0;
			}
		    }
		}

#ifdef HAVE_XWIDGETS
	      if (xv)
		{
		  unsigned int state;

		  state = xi_convert_event_state (xev);
		  x_display_set_last_user_time (dpyinfo, xev->time,
						xev->send_event, true);

		  if (found_valuator)
		    xwidget_scroll (xv, xev->event_x, xev->event_y,
				    -xv_total_x, -xv_total_y, state,
				    xev->time, (xv_total_x == 0.0
						&& xv_total_y == 0.0));
		  else
		    xwidget_motion_notify (xv, xev->event_x, xev->event_y,
					   xev->root_x, xev->root_y, state,
					   xev->time);

		  goto XI_OTHER;
		}
	      else
		{
#endif
		  if (found_valuator)
		    {
		      x_display_set_last_user_time (dpyinfo, xev->time,
						    xev->send_event, true);


#if defined USE_GTK && !defined HAVE_GTK3
		      /* Unlike on Motif, we can't select for XI
			 events on the scroll bar window under GTK+ 2.
			 So instead of that, just ignore XI wheel
			 events which land on a scroll bar.

			 Here we assume anything which isn't the edit
			 widget window is a scroll bar.  */

		      if (xev->child != None
			  && xev->child != FRAME_X_WINDOW (f))
			goto XI_OTHER;
#endif

		      /* If this happened during a drag-and-drop
			 operation, don't send an event.  We only have
			 to set the user time.  */
		      if (x_dnd_in_progress
			  /* If another master device moved the
			     pointer, we should put a wheel event on
			     the keyboard buffer as usual.  It will be
			     run once the drag-and-drop operation
			     completes.  */
			  && xev->deviceid == x_dnd_pointer_device
			  && (command_loop_level + minibuf_level
			      <= x_dnd_recursion_depth)
			  && dpyinfo == FRAME_DISPLAY_INFO (x_dnd_frame))
			goto XI_OTHER;

		      if (fabs (total_x) > 0 || fabs (total_y) > 0)
			{
			  inev.ie.kind = (fabs (total_y) >= fabs (total_x)
					  ? WHEEL_EVENT : HORIZ_WHEEL_EVENT);
			  inev.ie.timestamp = xev->time;

			  XSETINT (inev.ie.x, lrint (real_x));
			  XSETINT (inev.ie.y, lrint (real_y));
			  XSETFRAME (inev.ie.frame_or_window, f);

			  inev.ie.modifiers = (signbit (fabs (total_y) >= fabs (total_x)
							? total_y : total_x)
					       ? down_modifier : up_modifier);
			  inev.ie.modifiers
			    |= x_x_to_emacs_modifiers (dpyinfo,
						       xev->mods.effective);
			  inev.ie.arg = list3 (Qnil,
					       make_float (total_x),
					       make_float (total_y));
			}
		      else
			{
			  inev.ie.kind = TOUCH_END_EVENT;
			  inev.ie.timestamp = xev->time;

			  XSETINT (inev.ie.x, lrint (real_x));
			  XSETINT (inev.ie.y, lrint (real_y));
			  XSETFRAME (inev.ie.frame_or_window, f);
			}

		      if (source && !NILP (source->name))
			inev.ie.device = source->name;

		      if (!other_valuators_found)
			goto XI_OTHER;
		    }
#ifdef HAVE_XWIDGETS
		}
#endif
#endif /* HAVE_XINPUT2_1 */

	      if (!xi_position_changed (device, xev))
		goto XI_OTHER;

	      ev.x = lrint (xev->event_x);
	      ev.y = lrint (xev->event_y);
	      ev.window = xev->event;
	      ev.time = xev->time;
	      ev.send_event = xev->send_event;

#ifdef USE_MOTIF
	      use_copy = true;

	      copy.xmotion.type = MotionNotify;
	      copy.xmotion.serial = xev->serial;
	      copy.xmotion.send_event = xev->send_event;
	      copy.xmotion.display = dpyinfo->display;
	      copy.xmotion.window = xev->event;
	      copy.xmotion.root = xev->root;
	      copy.xmotion.subwindow = xev->child;
	      copy.xmotion.time = xev->time;
	      copy.xmotion.x = lrint (xev->event_x);
	      copy.xmotion.y = lrint (xev->event_y);
	      copy.xmotion.x_root = lrint (xev->root_x);
	      copy.xmotion.y_root = lrint (xev->root_y);
	      copy.xmotion.state = xi_convert_event_state (xev);

	      copy.xmotion.is_hint = False;
	      copy.xmotion.same_screen = True;
#endif

	      previous_help_echo_string = help_echo_string;
	      help_echo_string = Qnil;

	      if (hlinfo->mouse_face_hidden)
		{
		  hlinfo->mouse_face_hidden = false;
		  clear_mouse_face (hlinfo);
		}

	      f = mouse_or_wdesc_frame (dpyinfo, xev->event);

	      if (f && xev->event == FRAME_X_WINDOW (f))
		/* See the comment above x_compute_root_window_offset
		   for why this optimization is performed.  */
		xi_compute_root_window_offset (f, xev);

	      if (x_dnd_in_progress
		  /* Handle these events normally if the recursion
		     level is higher than when the drag-and-drop
		     operation was initiated.  This is so that mouse
		     input works while we're in the debugger for, say,
		     `x-dnd-movement-function`.  */
		  && (command_loop_level + minibuf_level
		      <= x_dnd_recursion_depth)
		  && xev->deviceid == x_dnd_pointer_device
		  && dpyinfo == FRAME_DISPLAY_INFO (x_dnd_frame))
		{
		  Window target, toplevel;
		  int target_proto, motif_style;
		  XRectangle *r;
		  bool was_frame;

		  /* Always clear mouse face.  */
		  clear_mouse_face (hlinfo);
		  hlinfo->mouse_face_hidden = true;

		  /* Sometimes the drag-and-drop operation starts with the
		     pointer of a frame invisible due to input.  Since
		     motion events are ignored during that, make the pointer
		     visible manually.  */

		  if (f)
		    {
		      XTtoggle_invisible_pointer (f, false);

		      r = &dpyinfo->last_mouse_glyph;

		      /* Also remember the mouse glyph and set
			 mouse_moved.  */
		      if (f != dpyinfo->last_mouse_glyph_frame
			  || lrint (xev->event_x) < r->x
			  || lrint (xev->event_x) >= r->x + r->width
			  || lrint (xev->event_y) < r->y
			  || lrint (xev->event_y) >= r->y + r->height)
			{
			  f->mouse_moved = true;
			  f->last_mouse_device = (source ? source->name
						  : Qnil);
			  dpyinfo->last_mouse_scroll_bar = NULL;

			  remember_mouse_glyph (f, lrint (xev->event_x),
						lrint (xev->event_y), r);
			  dpyinfo->last_mouse_glyph_frame = f;
			}
		    }

		  if (xev->root == dpyinfo->root_window)
		    target = x_dnd_get_target_window (dpyinfo,
						      lrint (xev->root_x),
						      lrint (xev->root_y),
						      &target_proto,
						      &motif_style,
						      &toplevel,
						      &was_frame);
		  else
		    target = x_dnd_fill_empty_target (&target_proto,
						      &motif_style,
						      &toplevel,
						      &was_frame);

		  if (toplevel != x_dnd_last_seen_toplevel)
		    {
		      if (toplevel != FRAME_OUTER_WINDOW (x_dnd_frame)
			  && x_dnd_return_frame == 1)
			x_dnd_return_frame = 2;

		      if (x_dnd_return_frame == 2
			  && x_any_window_to_frame (dpyinfo, toplevel))
			{
			  if (x_dnd_last_seen_window != None
			      && x_dnd_last_protocol_version != -1
			      && x_dnd_last_seen_window != FRAME_OUTER_WINDOW (x_dnd_frame))
			    x_dnd_send_leave (x_dnd_frame, x_dnd_last_seen_window,
					      x_dnd_last_seen_toplevel);
			  else if (x_dnd_last_seen_window != None
				   && XM_DRAG_STYLE_IS_DYNAMIC (x_dnd_last_motif_style)
				   && !x_dnd_disable_motif_drag
				   && x_dnd_last_seen_window != FRAME_OUTER_WINDOW (x_dnd_frame))
			    {
			      if (!x_dnd_motif_setup_p)
				xm_setup_drag_info (dpyinfo, x_dnd_frame);

			      lmsg.reason = XM_DRAG_REASON (XM_DRAG_ORIGINATOR_INITIATOR,
							    XM_DRAG_REASON_TOP_LEVEL_LEAVE);
			      lmsg.byteorder = XM_BYTE_ORDER_CUR_FIRST;
			      lmsg.zero = 0;
			      lmsg.timestamp = xev->time;
			      lmsg.source_window = FRAME_X_WINDOW (x_dnd_frame);

			      if (x_dnd_motif_setup_p)
				xm_send_top_level_leave_message (dpyinfo, FRAME_X_WINDOW (x_dnd_frame),
								 x_dnd_last_seen_window, &lmsg);
			    }

			  x_dnd_end_window = x_dnd_last_seen_window;
			  x_dnd_last_seen_window = None;
			  x_dnd_last_seen_toplevel = None;
			  x_dnd_in_progress = false;
			  x_dnd_return_frame_object
			    = x_any_window_to_frame (dpyinfo, toplevel);
			  x_dnd_return_frame = 3;
			  x_dnd_waiting_for_finish = false;
			  target = None;
			}
		    }

		  if (target != x_dnd_last_seen_window)
		    {
		      if (x_dnd_last_seen_window != None
			  && x_dnd_last_protocol_version != -1
			  && x_dnd_last_seen_window != FRAME_OUTER_WINDOW (x_dnd_frame))
			x_dnd_send_leave (x_dnd_frame, x_dnd_last_seen_window,
					  x_dnd_last_seen_toplevel);
		      else if (x_dnd_last_seen_window != None
			       && XM_DRAG_STYLE_IS_DYNAMIC (x_dnd_last_motif_style)
			       && !x_dnd_disable_motif_drag
			       && x_dnd_last_seen_window != FRAME_OUTER_WINDOW (x_dnd_frame))
			{
			  if (!x_dnd_motif_setup_p)
			    xm_setup_drag_info (dpyinfo, x_dnd_frame);

			  /* This is apparently required.  If we don't
			     send a motion event with the current root
			     window coordinates of the pointer before
			     the top level leave, then Motif displays
			     an ugly black border around the previous
			     drop site.  */

			  dmsg.reason = XM_DRAG_REASON (XM_DRAG_ORIGINATOR_INITIATOR,
							XM_DRAG_REASON_DRAG_MOTION);
			  dmsg.byteorder = XM_BYTE_ORDER_CUR_FIRST;
			  dmsg.side_effects
			    = XM_DRAG_SIDE_EFFECT (xm_side_effect_from_action (dpyinfo,
									       x_dnd_wanted_action),
						   XM_DROP_SITE_NONE, x_dnd_motif_operations,
						   XM_DROP_ACTION_DROP_CANCEL);
			  dmsg.timestamp = xev->time;
			  dmsg.x = lrint (xev->root_x);
			  dmsg.y = lrint (xev->root_y);

			  lmsg.reason = XM_DRAG_REASON (XM_DRAG_ORIGINATOR_INITIATOR,
							XM_DRAG_REASON_TOP_LEVEL_LEAVE);
			  lmsg.byteorder = XM_BYTE_ORDER_CUR_FIRST;
			  lmsg.zero = 0;
			  lmsg.timestamp = xev->time;
			  lmsg.source_window = FRAME_X_WINDOW (x_dnd_frame);

			  if (x_dnd_motif_setup_p)
			    {
			      xm_send_drag_motion_message (dpyinfo, FRAME_X_WINDOW (x_dnd_frame),
							   x_dnd_last_seen_window, &dmsg);
			      xm_send_top_level_leave_message (dpyinfo, FRAME_X_WINDOW (x_dnd_frame),
							       x_dnd_last_seen_window, &lmsg);
			    }
			}

		      x_dnd_action = None;
		      x_dnd_last_seen_toplevel = toplevel;
		      x_dnd_last_seen_window = target;
		      x_dnd_last_protocol_version = target_proto;
		      x_dnd_last_motif_style = motif_style;
		      x_dnd_last_window_is_frame = was_frame;

		      if (target != None && x_dnd_last_protocol_version != -1)
			x_dnd_send_enter (x_dnd_frame, target,
					  x_dnd_last_seen_toplevel,
					  x_dnd_last_protocol_version);
		      else if (target != None && XM_DRAG_STYLE_IS_DYNAMIC (x_dnd_last_motif_style)
			       && !x_dnd_disable_motif_drag)
			{
			  if (!x_dnd_motif_setup_p)
			    xm_setup_drag_info (dpyinfo, x_dnd_frame);

			  emsg.reason = XM_DRAG_REASON (XM_DRAG_ORIGINATOR_INITIATOR,
							XM_DRAG_REASON_TOP_LEVEL_ENTER);
			  emsg.byteorder = XM_BYTE_ORDER_CUR_FIRST;
			  emsg.zero = 0;
			  emsg.timestamp = xev->time;
			  emsg.source_window = FRAME_X_WINDOW (x_dnd_frame);
			  emsg.index_atom = x_dnd_motif_atom;

			  if (x_dnd_motif_setup_p)
			    xm_send_top_level_enter_message (dpyinfo, FRAME_X_WINDOW (x_dnd_frame),
							     target, &emsg);
			}
		    }
		  else
		    x_dnd_last_seen_toplevel = toplevel;

		  if (x_dnd_last_window_is_frame && target != None)
		    x_dnd_note_self_position (dpyinfo, target,
					      lrint (xev->root_x),
					      lrint (xev->root_y));
		  else if (x_dnd_last_protocol_version != -1 && target != None)
		    {
		      dnd_state = xi_convert_event_state (xev);

		      x_dnd_send_position (x_dnd_frame, target,
					   x_dnd_last_seen_toplevel,
					   x_dnd_last_protocol_version,
					   lrint (xev->root_x),
					   lrint (xev->root_y),
					   x_dnd_selection_timestamp,
					   x_dnd_wanted_action, 0,
					   dnd_state);
		    }
		  else if (XM_DRAG_STYLE_IS_DYNAMIC (x_dnd_last_motif_style) && target != None
			   && !x_dnd_disable_motif_drag)
		    {
		      if (!x_dnd_motif_setup_p)
			xm_setup_drag_info (dpyinfo, x_dnd_frame);

		      dmsg.reason = XM_DRAG_REASON (XM_DRAG_ORIGINATOR_INITIATOR,
						    XM_DRAG_REASON_DRAG_MOTION);
		      dmsg.byteorder = XM_BYTE_ORDER_CUR_FIRST;
		      dmsg.side_effects
			= XM_DRAG_SIDE_EFFECT (xm_side_effect_from_action (dpyinfo,
									   x_dnd_wanted_action),
					       XM_DROP_SITE_VALID, x_dnd_motif_operations,
					       (!x_dnd_xm_use_help
						? XM_DROP_ACTION_DROP
						: XM_DROP_ACTION_DROP_HELP));
		      dmsg.timestamp = xev->time;
		      dmsg.x = lrint (xev->root_x);
		      dmsg.y = lrint (xev->root_y);

		      if (x_dnd_motif_setup_p)
			xm_send_drag_motion_message (dpyinfo, FRAME_X_WINDOW (x_dnd_frame),
						     target, &dmsg);
		    }

		  x_dnd_update_tooltip_position (xev->root_x, xev->root_y);

		  goto XI_OTHER;
		}

#ifdef USE_GTK
	      if (f && xg_event_is_for_scrollbar (f, event, false))
		f = 0;
#endif
	      if (f)
		{
		  if (xev->event != FRAME_X_WINDOW (f))
		    {
		      x_translate_coordinates (f, lrint (xev->root_x),
					       lrint (xev->root_y),
					       &ev.x, &ev.y);
		      ev.window = FRAME_X_WINDOW (f);
		    }

		  /* Maybe generate a SELECT_WINDOW_EVENT for
		     `mouse-autoselect-window' but don't let popup menus
		     interfere with this (Bug#1261).  */
		  if (!NILP (Vmouse_autoselect_window)
		      && !popup_activated ()
		      /* Don't switch if we're currently in the minibuffer.
			 This tries to work around problems where the
			 minibuffer gets unselected unexpectedly, and where
			 you then have to move your mouse all the way down to
			 the minibuffer to select it.  */
		      && !MINI_WINDOW_P (XWINDOW (selected_window))
		      /* With `focus-follows-mouse' non-nil create an event
			 also when the target window is on another frame.  */
		      && (f == XFRAME (selected_frame)
			  || !NILP (focus_follows_mouse)))
		    {
		      static Lisp_Object last_mouse_window;
		      Lisp_Object window = window_from_coordinates (f, ev.x, ev.y, 0, false, false,
								    false);

		      /* A window will be autoselected only when it is not
			 selected now and the last mouse movement event was
			 not in it.  The remainder of the code is a bit vague
			 wrt what a "window" is.  For immediate autoselection,
			 the window is usually the entire window but for GTK
			 where the scroll bars don't count.  For delayed
			 autoselection the window is usually the window's text
			 area including the margins.  */
		      if (WINDOWP (window)
			  && !EQ (window, last_mouse_window)
			  && !EQ (window, selected_window))
			{
			  inev.ie.kind = SELECT_WINDOW_EVENT;
			  inev.ie.frame_or_window = window;

			  if (source)
			    inev.ie.device = source->name;
			}

		      /* Remember the last window where we saw the mouse.  */
		      last_mouse_window = window;
		    }

		  if (!x_note_mouse_movement (f, &ev, source ? source->name : Qnil))
		    help_echo_string = previous_help_echo_string;
		}
	      else
		{
#ifndef USE_TOOLKIT_SCROLL_BARS
		  struct scroll_bar *bar
		    = x_window_to_scroll_bar (dpyinfo->display, xev->event, 2);

		  if (bar)
		    x_scroll_bar_note_movement (bar, &ev);
#endif /* USE_TOOLKIT_SCROLL_BARS */

		  /* If we move outside the frame, then we're
		     certainly no longer on any text in the frame.  */
		  clear_mouse_face (hlinfo);
		}

	      /* If the contents of the global variable help_echo_string
		 has changed, generate a HELP_EVENT.  */
	      if (!NILP (help_echo_string)
		  || !NILP (previous_help_echo_string))
		{
		  /* Also allow the focus and client pointer to be
		     adjusted accordingly, in case a help tooltip is
		     shown.  */
		  gen_help_device = device;
		  gen_help_time = xev->time;

		  do_help = 1;
		}

	      if (f)
		x_flush_dirty_back_buffer_on (f);
	      goto XI_OTHER;
	    }

	  case XI_ButtonRelease:
	  case XI_ButtonPress:
	    {
	      /* If we decide we want to generate an event to be seen
		 by the rest of Emacs, we put it here.  */
	      Lisp_Object tab_bar_arg = Qnil;
	      bool tab_bar_p = false;
	      bool tool_bar_p = false;
	      struct xi_device_t *device, *source;
#ifdef HAVE_XWIDGETS
	      struct xwidget_view *xvw;
#endif
	      /* A fake XButtonEvent for x_construct_mouse_click. */
	      XButtonEvent bv;
	      bool dnd_grab = false;
	      int dnd_state;

	      if (x_dnd_in_progress
		  && (command_loop_level + minibuf_level
		      <= x_dnd_recursion_depth)
		  && xev->deviceid == x_dnd_pointer_device
		  && dpyinfo == FRAME_DISPLAY_INFO (x_dnd_frame))
		{
		  f = mouse_or_wdesc_frame (dpyinfo, xev->event);
		  device = xi_device_from_id (dpyinfo, xev->deviceid);

		  if (f && xev->event == FRAME_X_WINDOW (f))
		    /* See the comment above
		       x_compute_root_window_offset for why this
		       optimization is performed.  */
		    xi_compute_root_window_offset (f, xev);

		  /* Don't track grab status for emulated pointer
		     events, because they are ignored by the regular
		     mouse click processing code.  */
#ifdef XIPointerEmulated
		  if (!(xev->flags & XIPointerEmulated))
		    {
#endif
		      if (xev->evtype == XI_ButtonPress)
			{
			  x_display_set_last_user_time (dpyinfo, xev->time,
							xev->send_event, true);

			  dpyinfo->grabbed |= (1 << xev->detail);
			  dpyinfo->last_mouse_frame = f;

			  if (device)
			    device->grab |= (1 << xev->detail);

			  if (f)
			    f->last_tab_bar_item = -1;
#if ! defined (USE_GTK)
			  if (f)
			    f->last_tool_bar_item = -1;
#endif /* not USE_GTK */
			}
		      else
			{
			  dpyinfo->grabbed &= ~(1 << xev->detail);
			  if (device)
			    device->grab &= ~(1 << xev->detail);
			}
#ifdef XIPointerEmulated
		    }
#endif

		  if (f && device)
		    xi_handle_interaction (dpyinfo, f, device,
					   xev->time);

		  if (xev->evtype == XI_ButtonPress
		      && x_dnd_last_seen_window != None)
		    {
		      dnd_state = xi_convert_event_state (xev);

		      if (x_dnd_last_window_is_frame)
			{
#ifdef XI_PointerEmulated
			  /* Set the last user time here even if this
			     is an emulated button event, since
			     something happened in response.  */

			  if (xev->flags & XIPointerEmulated)
			    x_display_set_last_user_time (dpyinfo, xev->time,
							  xev->send_event, true);
#endif
			  x_dnd_note_self_wheel (dpyinfo,
						 x_dnd_last_seen_window,
						 lrint (xev->root_x),
						 lrint (xev->root_y),
						 xev->detail, dnd_state,
						 xev->time);
			}
		      else
			x_dnd_send_position (x_dnd_frame,
					     x_dnd_last_seen_window,
					     x_dnd_last_seen_toplevel,
					     x_dnd_last_protocol_version,
					     lrint (xev->root_x),
					     lrint (xev->root_y),
					     xev->time, x_dnd_wanted_action,
					     xev->detail, dnd_state);

		      goto OTHER;
		    }

		  if (xev->evtype == XI_ButtonRelease)
		    {
		      for (int i = 0; i < xev->buttons.mask_len * 8; ++i)
			{
			  if (i != xev->detail && XIMaskIsSet (xev->buttons.mask, i))
			    dnd_grab = true;
			}

		      if (!dnd_grab)
			{
			  x_dnd_end_window = x_dnd_last_seen_window;
			  x_dnd_in_progress = false;

			  /* If a tooltip that we're following is
			     displayed, hide it now.  */

			  if (x_dnd_update_tooltip
			      && FRAMEP (tip_frame)
			      && FRAME_LIVE_P (XFRAME (tip_frame))
			      && (FRAME_X_DISPLAY (XFRAME (tip_frame))
				  == FRAME_X_DISPLAY (x_dnd_frame)))
			    Fx_hide_tip ();

			  /* This doesn't have to be marked since it
			     is only accessed if
			     x_dnd_waiting_for_finish is true, which
			     is only possible inside the DND event
			     loop where that frame is on the
			     stack.  */
			  x_dnd_finish_frame = x_dnd_frame;

			  if (x_dnd_last_seen_window != None
			      && x_dnd_last_window_is_frame)
			    {
			      x_dnd_waiting_for_finish = false;
			      x_dnd_note_self_drop (dpyinfo, x_dnd_last_seen_window,
						    lrint (xev->root_x),
						    lrint (xev->root_y), xev->time);
			    }
			  else if (x_dnd_last_seen_window != None
				   && x_dnd_last_protocol_version != -1)
			    {
			      x_dnd_pending_finish_target = x_dnd_last_seen_toplevel;
			      x_dnd_waiting_for_finish_proto = x_dnd_last_protocol_version;

			      x_dnd_waiting_for_finish
				= x_dnd_do_drop (x_dnd_last_seen_window,
						 x_dnd_last_seen_toplevel,
						 x_dnd_last_protocol_version);
			      x_dnd_finish_display = dpyinfo->display;
			    }
			  else if (x_dnd_last_seen_window != None)
			    {
			      xm_drop_start_message dmsg;
			      xm_drag_receiver_info drag_receiver_info;

			      if (!xm_read_drag_receiver_info (dpyinfo, x_dnd_last_seen_window,
							       &drag_receiver_info)
				  && !x_dnd_disable_motif_protocol
				  && drag_receiver_info.protocol_style != XM_DRAG_STYLE_NONE
				  && (x_dnd_allow_current_frame
				      || x_dnd_last_seen_window != FRAME_OUTER_WINDOW (x_dnd_frame)))
				{
				  if (!x_dnd_motif_setup_p)
				    xm_setup_drag_info (dpyinfo, x_dnd_frame);

				  if (x_dnd_motif_setup_p)
				    {
				      memset (&dmsg, 0, sizeof dmsg);

				      dmsg.reason = XM_DRAG_REASON (XM_DRAG_ORIGINATOR_INITIATOR,
								    XM_DRAG_REASON_DROP_START);
				      dmsg.byte_order = XM_BYTE_ORDER_CUR_FIRST;
				      dmsg.side_effects
					= XM_DRAG_SIDE_EFFECT (xm_side_effect_from_action (dpyinfo,
											   x_dnd_wanted_action),
							       XM_DROP_SITE_VALID, x_dnd_motif_operations,
							       (!x_dnd_xm_use_help
								? XM_DROP_ACTION_DROP
								: XM_DROP_ACTION_DROP_HELP));
				      dmsg.timestamp = xev->time;
				      dmsg.x = lrint (xev->root_x);
				      dmsg.y = lrint (xev->root_y);
				      /* This atom technically has to be
					 unique to each drag-and-drop
					 operation, but that isn't easy to
					 accomplish, since we cannot
					 randomly move data around between
					 selections.  Let's hope no two
					 instances of Emacs try to drag
					 into the same window at the same
					 time.  */
				      dmsg.index_atom = x_dnd_motif_atom;
				      dmsg.source_window = FRAME_X_WINDOW (x_dnd_frame);

				      if (!XM_DRAG_STYLE_IS_DROP_ONLY (drag_receiver_info.protocol_style))
					x_dnd_send_xm_leave_for_drop (FRAME_DISPLAY_INFO (x_dnd_frame),
								      x_dnd_frame, x_dnd_last_seen_window,
								      xev->time);

				      xm_send_drop_message (dpyinfo, FRAME_X_WINDOW (x_dnd_frame),
							    x_dnd_last_seen_window, &dmsg);

				      x_dnd_waiting_for_finish = true;
				      x_dnd_waiting_for_motif_finish_display = dpyinfo;
				      x_dnd_waiting_for_motif_finish = 1;
				      x_dnd_finish_display = dpyinfo->display;
				    }
				}
			      else
				x_dnd_send_unsupported_drop (dpyinfo, (x_dnd_last_seen_toplevel != None
								       ? x_dnd_last_seen_toplevel
								       : x_dnd_last_seen_window),
							     lrint (xev->root_x),
							     lrint (xev->root_y), xev->time);
			    }
			  else if (x_dnd_last_seen_toplevel != None)
			    x_dnd_send_unsupported_drop (dpyinfo,
							 x_dnd_last_seen_toplevel,
							 lrint (xev->root_x),
							 lrint (xev->root_y),
							 xev->time);

			  x_dnd_last_protocol_version = -1;
			  x_dnd_last_motif_style = XM_DRAG_STYLE_NONE;
			  x_dnd_last_seen_window = None;
			  x_dnd_last_seen_toplevel = None;
			  x_dnd_last_window_is_frame = false;
			  x_dnd_frame = NULL;

			  goto XI_OTHER;
			}
		    }
		}

	      if (x_dnd_in_progress
		  && (command_loop_level + minibuf_level
		      <= x_dnd_recursion_depth))
		goto XI_OTHER;

#ifdef USE_MOTIF
#ifdef USE_TOOLKIT_SCROLL_BARS
	      struct scroll_bar *bar
		= x_window_to_scroll_bar (dpyinfo->display,
					  xev->event, 2);
#endif

	      use_copy = true;
	      copy.xbutton.type = (xev->evtype == XI_ButtonPress
				   ? ButtonPress : ButtonRelease);
	      copy.xbutton.serial = xev->serial;
	      copy.xbutton.send_event = xev->send_event;
	      copy.xbutton.display = dpyinfo->display;
	      copy.xbutton.window = xev->event;
	      copy.xbutton.root = xev->root;
	      copy.xbutton.subwindow = xev->child;
	      copy.xbutton.time = xev->time;
	      copy.xbutton.x = lrint (xev->event_x);
	      copy.xbutton.y = lrint (xev->event_y);
	      copy.xbutton.x_root = lrint (xev->root_x);
	      copy.xbutton.y_root = lrint (xev->root_y);
	      copy.xbutton.state = xi_convert_event_state (xev);
	      copy.xbutton.button = xev->detail;
	      copy.xbutton.same_screen = True;

#elif defined USE_GTK && !defined HAVE_GTK3
	      copy = gdk_event_new (xev->evtype == XI_ButtonPress
				    ? GDK_BUTTON_PRESS : GDK_BUTTON_RELEASE);

	      copy->button.window = gdk_x11_window_lookup_for_display (gdpy, xev->event);
	      copy->button.send_event = xev->send_event;
	      copy->button.time = xev->time;
	      copy->button.x = xev->event_x;
	      copy->button.y = xev->event_y;
	      copy->button.x_root = xev->root_x;
	      copy->button.y_root = xev->root_y;
	      copy->button.state = xi_convert_event_state (xev);
	      copy->button.button = xev->detail;

	      if (!copy->button.window)
		emacs_abort ();

	      g_object_ref (copy->button.window);

	      if (popup_activated ())
		{
		  /* GTK+ popup menus don't respond to core buttons
		     after Button3, so don't dismiss popup menus upon
		     wheel movement here either.  */
		  if (xev->detail > 3)
		    *finish = X_EVENT_DROP;

		  if (xev->evtype == XI_ButtonRelease)
		    goto XI_OTHER;
		}
#endif

#ifdef HAVE_XINPUT2_1
	      /* Ignore emulated scroll events when XI2 native
		 scroll events are present.  */
	      if (xev->flags & XIPointerEmulated)
		{
#if !defined USE_MOTIF || !defined USE_TOOLKIT_SCROLL_BARS
		  *finish = X_EVENT_DROP;
#else
		  if (bar)
		    *finish = X_EVENT_DROP;
#endif
		  goto XI_OTHER;
		}
#endif

	      if (xev->evtype == XI_ButtonPress)
		x_display_set_last_user_time (dpyinfo, xev->time,
					      xev->send_event, true);

	      source = xi_device_from_id (dpyinfo, xev->sourceid);
	      device = xi_device_from_id (dpyinfo, xev->deviceid);

#ifdef HAVE_XWIDGETS
	      xvw = xwidget_view_from_window (xev->event);
	      if (xvw)
		{
		  /* If the user interacts with a frame that's focused
		     on another device, but not the current focus
		     frame, make it the focus frame.  */
		  if (device)
		    xi_handle_interaction (dpyinfo, xvw->frame,
					   device, xev->time);

		  xwidget_button (xvw, xev->evtype == XI_ButtonPress,
				  lrint (xev->event_x), lrint (xev->event_y),
				  xev->detail, xi_convert_event_state (xev),
				  xev->time);

		  if (!EQ (selected_window, xvw->w) && (xev->detail < 4))
		    {
		      inev.ie.kind = SELECT_WINDOW_EVENT;
		      inev.ie.frame_or_window = xvw->w;

		      if (source)
			inev.ie.device = source->name;
		    }

		  *finish = X_EVENT_DROP;
		  goto XI_OTHER;
		}
#endif

	      if (!device)
		goto XI_OTHER;

	      bv.button = xev->detail;
	      bv.type = xev->evtype == XI_ButtonPress ? ButtonPress : ButtonRelease;
	      bv.x = lrint (xev->event_x);
	      bv.y = lrint (xev->event_y);
	      bv.x_root = lrint (xev->root_x);
	      bv.y_root = lrint (xev->root_y);
	      bv.window = xev->event;
	      bv.state = xi_convert_event_state (xev);
	      bv.time = xev->time;

	      dpyinfo->last_mouse_glyph_frame = NULL;

	      f = mouse_or_wdesc_frame (dpyinfo, xev->event);

	      if (f && xev->event == FRAME_X_WINDOW (f))
		/* See the comment above x_compute_root_window_offset
		   for why this optimization is performed.  */
		xi_compute_root_window_offset (f, xev);

	      if (f && xev->evtype == XI_ButtonPress
		  && !popup_activated ()
		  && !x_window_to_scroll_bar (dpyinfo->display, xev->event, 2)
		  && !FRAME_NO_ACCEPT_FOCUS (f))
		{
		  /* When clicking into a child frame or when clicking
		     into a parent frame with the child frame selected and
		     `no-accept-focus' is not set, select the clicked
		     frame.  */
		  struct frame *hf = dpyinfo->highlight_frame;

		  if (FRAME_PARENT_FRAME (f) || (hf && frame_ancestor_p (f, hf)))
		    {
#if defined HAVE_GTK3 || (!defined USE_GTK && !defined USE_X_TOOLKIT)
		      if (device)
			{
			  /* This can generate XI_BadDevice if the
			     device's attachment was destroyed
			     server-side.  */
			  x_ignore_errors_for_next_request (dpyinfo, 0);
			  XISetFocus (dpyinfo->display, device->attachment,
				      /* Note that the input extension
					 only supports RevertToParent-type
					 behavior.  */
				      FRAME_OUTER_WINDOW (f), xev->time);
			  x_stop_ignoring_errors (dpyinfo);
			}
#else
		      /* Non-no toolkit builds without GTK 3 use core
			 events to handle focus.  Errors are still
			 caught here in case the window is not
			 viewable.  */
		      x_ignore_errors_for_next_request (dpyinfo, 0);
		      XSetInputFocus (FRAME_X_DISPLAY (f), FRAME_OUTER_WINDOW (f),
				      RevertToParent, xev->time);
		      x_stop_ignoring_errors (dpyinfo);
#endif
		      if (FRAME_PARENT_FRAME (f))
			XRaiseWindow (FRAME_X_DISPLAY (f), FRAME_OUTER_WINDOW (f));
		    }
		}

	      if (f)
		{
		  /* If the user interacts with a frame that's focused
		     on another device, but not the current focus
		     frame, make it the focus frame.  */
		  if (device)
		    xi_handle_interaction (dpyinfo, f, device,
					   xev->time);
		}

#ifdef USE_GTK
	      if (!f)
		{
		  int real_x = lrint (xev->root_x);
		  int real_y = lrint (xev->root_y);

		  f = x_any_window_to_frame (dpyinfo, xev->event);

		  if (xev->detail > 3 && xev->detail < 8 && f)
		    {
		      if (xev->evtype == XI_ButtonRelease)
			{
			  if (FRAME_X_WINDOW (f) != xev->event)
			    x_translate_coordinates (f, real_x, real_y,
						     &real_x, &real_y);

			  if (xev->detail <= 5)
			    inev.ie.kind = WHEEL_EVENT;
			  else
			    inev.ie.kind = HORIZ_WHEEL_EVENT;

			  if (source)
			    inev.ie.device = source->name;

			  inev.ie.timestamp = xev->time;

			  XSETINT (inev.ie.x, real_x);
			  XSETINT (inev.ie.y, real_y);
			  XSETFRAME (inev.ie.frame_or_window, f);

			  inev.ie.modifiers
			    |= x_x_to_emacs_modifiers (dpyinfo,
						       xev->mods.effective);

			  inev.ie.modifiers |= xev->detail % 2 ? down_modifier : up_modifier;
			}

		      *finish = X_EVENT_DROP;
		      goto XI_OTHER;
		    }
		  else
		    f = NULL;
		}

	      if (f && xg_event_is_for_scrollbar (f, event, false))
		f = 0;
#endif

	      if (f)
		{
		  if (xev->detail >= 4 && xev->detail < 8)
		    {
		      if (xev->evtype == XI_ButtonRelease)
			{
			  if (xev->detail <= 5)
			    inev.ie.kind = WHEEL_EVENT;
			  else
			    inev.ie.kind = HORIZ_WHEEL_EVENT;

			  if (source)
			    inev.ie.device = source->name;

			  inev.ie.timestamp = xev->time;

			  XSETINT (inev.ie.x, lrint (xev->event_x));
			  XSETINT (inev.ie.y, lrint (xev->event_y));
			  XSETFRAME (inev.ie.frame_or_window, f);

			  inev.ie.modifiers
			    |= x_x_to_emacs_modifiers (dpyinfo,
						       xev->mods.effective);

			  inev.ie.modifiers |= xev->detail % 2 ? down_modifier : up_modifier;
			}

		      goto XI_OTHER;
		    }

		  /* Is this in the tab-bar?  */
		  if (WINDOWP (f->tab_bar_window)
		      && WINDOW_TOTAL_LINES (XWINDOW (f->tab_bar_window)))
		    {
		      Lisp_Object window;
		      int x = bv.x;
		      int y = bv.y;

		      window = window_from_coordinates (f, x, y, 0, true, true, true);
		      tab_bar_p = EQ (window, f->tab_bar_window);

		      if (tab_bar_p)
			{
			  tab_bar_arg = handle_tab_bar_click
			    (f, x, y, xev->evtype == XI_ButtonPress,
			     x_x_to_emacs_modifiers (dpyinfo, bv.state));
			  x_flush_dirty_back_buffer_on (f);
			}
		    }

#if ! defined (USE_GTK)
		  /* Is this in the tool-bar?  */
		  if (WINDOWP (f->tool_bar_window)
		      && WINDOW_TOTAL_LINES (XWINDOW (f->tool_bar_window)))
		    {
		      Lisp_Object window;
		      int x = bv.x;
		      int y = bv.y;

		      window = window_from_coordinates (f, x, y, 0, true, true, true);
		      /* Ignore button release events if the mouse
			 wasn't previously pressed on the tool bar.
			 We do this because otherwise selecting some
			 text with the mouse and then releasing it on
			 the tool bar doesn't stop selecting text,
			 since the tool bar eats the button up
			 event.  */
		      tool_bar_p = (EQ (window, f->tool_bar_window)
				    && (xev->evtype != XI_ButtonRelease
					|| f->last_tool_bar_item != -1));

		      if (tool_bar_p && xev->detail < 4)
			{
			  handle_tool_bar_click_with_device
			    (f, x, y, xev->evtype == XI_ButtonPress,
			     x_x_to_emacs_modifiers (dpyinfo, bv.state),
			     source ? source->name : Qt);
			  x_flush_dirty_back_buffer_on (f);
			}
		    }
#endif /* !USE_GTK */

		  if (!(tab_bar_p && NILP (tab_bar_arg)) && !tool_bar_p)
#if defined (USE_X_TOOLKIT) || defined (USE_GTK)
		    if (! popup_activated ())
#endif
		      {
			if (ignore_next_mouse_click_timeout)
			  {
			    if (xev->evtype == XI_ButtonPress
				&& xev->time > ignore_next_mouse_click_timeout)
			      {
				ignore_next_mouse_click_timeout = 0;
				x_construct_mouse_click (&inev.ie, &bv, f, true);
			      }
			    if (xev->evtype == XI_ButtonRelease)
			      ignore_next_mouse_click_timeout = 0;
			  }
			else
			  x_construct_mouse_click (&inev.ie, &bv, f, true);

			if (!NILP (tab_bar_arg))
			  inev.ie.arg = tab_bar_arg;
		      }

		  if (FRAME_X_EMBEDDED_P (f)
		      && !FRAME_NO_ACCEPT_FOCUS (f))
		    xembed_send_message (f, xev->time,
					 XEMBED_REQUEST_FOCUS, 0, 0, 0);
		}
	      else
		{
		  struct scroll_bar *bar
		    = x_window_to_scroll_bar (dpyinfo->display,
					      xev->event, 2);

#ifndef USE_TOOLKIT_SCROLL_BARS
		  if (bar)
		    x_scroll_bar_handle_click (bar, (XEvent *) &bv, &inev.ie,
					       source ? source->name : Qnil);
#else
		  /* Make the "Ctrl-Mouse-2 splits window" work for toolkit
		     scroll bars.  */
		  if (bar && xev->mods.effective & ControlMask)
		    {
		      x_scroll_bar_handle_click (bar, (XEvent *) &bv, &inev.ie,
						 source ? source->name : Qnil);
		      *finish = X_EVENT_DROP;
		    }
#endif
		}

	      if (xev->evtype == XI_ButtonPress)
		{
		  dpyinfo->grabbed |= (1 << xev->detail);
		  device->grab |= (1 << xev->detail);
		  dpyinfo->last_mouse_frame = f;
		  if (f && !tab_bar_p)
		    f->last_tab_bar_item = -1;
#if ! defined (USE_GTK)
		  if (f && !tool_bar_p)
		    f->last_tool_bar_item = -1;
#endif /* not USE_GTK */

		}
	      else
		{
		  dpyinfo->grabbed &= ~(1 << xev->detail);
		  device->grab &= ~(1 << xev->detail);
		}

	      if (source && inev.ie.kind != NO_EVENT)
		inev.ie.device = source->name;

	      if (f)
		f->mouse_moved = false;

#if defined (USE_GTK)
	      /* No Xt toolkit currently available has support for XI2.
	         So the code here assumes use of GTK.  */
	      f = x_menubar_window_to_frame (dpyinfo, event);
	      if (f /* Gtk+ menus only react to the first three buttons. */
		  && xev->detail < 3)
		{
		  /* What is done with Core Input ButtonPressed is not
		     possible here, because GenericEvents cannot be saved.  */
		  bool was_waiting_for_input = waiting_for_input;
		  /* This hack was adopted from the NS port.  Whether
		     or not it is actually safe is a different story
		     altogether.  */
		  if (waiting_for_input)
		    waiting_for_input = 0;
		  set_frame_menubar (f, true);
		  waiting_for_input = was_waiting_for_input;
		}
#endif
	      goto XI_OTHER;
	    }

	  case XI_KeyPress:
	    {
	      int state = xev->mods.effective;
	      Lisp_Object c;
#ifdef HAVE_XKB
	      unsigned int mods_rtrn;
#endif /* HAVE_XKB */
	      int keycode = xev->detail;
	      KeySym keysym;
	      char copy_buffer[81];
	      char *copy_bufptr = copy_buffer;
	      int copy_bufsiz = sizeof (copy_buffer);
	      ptrdiff_t i;
	      unsigned int old_state;
	      struct xi_device_t *device, *source;
	      XKeyPressedEvent xkey;

	      coding = Qlatin_1;

	      /* The code under this label is quite desultory.  There
		 are also several important discrepancies with the
		 core KeyPress code to mind.

		 There are three principal objectives:

		 The first is to produce a core or GDK translation of
	         this XI_KeyPress event, which is relayed to the
	         toolkit.  This transpires by setting `copy' to a
	         close copy of XEV, which is later copied or
	         dispatched to the toolkit by the code beneath the
	         OTHER label.

	         The second objective is to filter the event through
	         an input method, by generating a second copy of the
	         event expressly tailored for such a purpose.  The
	         core KeyPress code does not endeavor to do so;
	         instead, this action is taken prior to calling
	         handle_one_xevent.  Calls to `x_filter_event' or
	         `xg_filter_key' serve to implement this objective.

	         If the event is not removed by the input method's
	         filter, the third objective is to establish either a
	         keysym or a sequence of characters to insert, using
	         the information supplied within the key event.

	         When an input method connection is available, this
	         responsibility is vested in the hands of the input
	         method -- yet another copy of XEV as a core event is
	         produced, and the input method is responsible for
	         deriving a keysym or text to insert.

	         Otherwise, if the XKB extension is available, calls
	         are made to XkbTranslateKeyCode and
	         XkbTranslateKeySym.

	         And if all else fails, XEV is transformed into a core
	         event and provided to XLookupString, in a manner
	         analogous to the core event processing under the
	         KeyPress label.

	         A wide number of variables are employed during this
	         translation process.  The most pertinent ones are:

		 `copy'

		   This variable is defined when an X toolkit
		   incognizant of input extension events is being
		   employed.  If a popup is active, Emacs copies
		   fields of interest from the extension event to
		   COPY, sets the `use_copy' flag, and jumps to the
		   XI_OTHER label.  `copy' is then relayed to the
		   toolkit.

		 `xkey'

		   This variable is defined to a copy of the event
		   used by input methods or XLookupString at various
		   points during the execution of this label.

		 `coding'

		   This variable is consulted at the conclusion of
		   event generation, and holds the coding system
		   for any generated string.

		 `keysym'

		   This variable is eventually set to the keysym tied
		   to the event, which may be directly provided within
		   a generated struct input_event, should it bear a
		   direct relation to an ASCII or Unicode character,
		   or if it is a control key.

		 `copy_buffer', `copy_bufptr', `copy_bufsiz'

		   These variables hold the buffer that incorporates
		   characters generated during the keycode-to-keysym
		   conversion process.

		 `nbytes'

		   Holds the number of characters within that buffer,
		   in bytes.  These characters are encoded using the
		   coding system in `coding'.

		   If greater than 0 and KEYSYM does not immediately
		   relate to a function key, control key or character,
		   it is provided as the string to insert within a
		   MULTIBYTE_CHAR_KEYSTROKE_EVENT.

		 `state'

		   Holds the keyboard and group (but not button)
		   state.  After event filtering concludes, modifier
		   bits within `extra_keyboard_modifiers' are also
		   introduced.

	         This illustration may reflect the treatment taken
	         towards core key events to some degree.  */

	      device = xi_device_from_id (dpyinfo, xev->deviceid);
	      source = xi_device_from_id (dpyinfo, xev->sourceid);

	      if (!device)
		goto XI_OTHER;

	      /* Convert the keyboard state within XEV to a core
		 modifier mask, later supplied as arguments to XKB and
		 core functions.  This encompasses the keyboard group
		 and effective modifiers but not the button state.  */
	      state = xi_convert_event_keyboard_state (xev);

#if defined (USE_X_TOOLKIT) || defined (USE_GTK)
	      /* Dispatch XI_KeyPress events when in menu.  */
	      if (popup_activated ())
		{
#ifdef USE_LUCID
		  /* This makes key navigation work inside menus.  */
		  use_copy = true;
		  copy.xkey.type = KeyPress;
		  copy.xkey.serial = xev->serial;
		  copy.xkey.send_event = xev->send_event;
		  copy.xkey.display = dpyinfo->display;
		  copy.xkey.window = xev->event;
		  copy.xkey.root = xev->root;
		  copy.xkey.subwindow = xev->child;
		  copy.xkey.time = xev->time;
		  copy.xkey.state = state;
		  xi_convert_button_state (&xev->buttons, &copy.xkey.state);

		  copy.xkey.x = lrint (xev->event_x);
		  copy.xkey.y = lrint (xev->event_y);
		  copy.xkey.x_root = lrint (xev->root_x);
		  copy.xkey.y_root = lrint (xev->root_y);
		  copy.xkey.keycode = xev->detail;
		  copy.xkey.same_screen = True;
#endif /* USE_LUCID */
		  goto XI_OTHER;
		}
#endif /* USE_X_TOOLKIT || USE_GTK */

	      x_display_set_last_user_time (dpyinfo, xev->time,
					    xev->send_event, true);
	      ignore_next_mouse_click_timeout = 0;

	      f = x_any_window_to_frame (dpyinfo, xev->event);

	      if (f && xev->event == FRAME_X_WINDOW (f))
		/* See the comment above x_compute_root_window_offset
		   for why this optimization is performed.  */
		xi_compute_root_window_offset (f, xev);

	      /* GTK handles TAB events in an undesirable manner, so
		 keyboard events are always dropped.  But as a side
		 effect, the user time will no longer be set by GDK,
		 so do that manually.  */
#ifdef USE_GTK
	      if (f)
		x_set_gtk_user_time (f, xev->time);
#endif /* USE_GTK */

	      if (f)
		{
		  /* If the user interacts with a frame that's focused
		     on another device, but not the current focus
		     frame, make it the focus frame.  */
		  if (device)
		    xi_handle_interaction (dpyinfo, f, device,
					   xev->time);
		}

	      /* Convert the XI event into a core event structure
		 provided to old Xlib functions and input method
		 filter functions.  */

	      memset (&xkey, 0, sizeof xkey);

	      xkey.type = KeyPress;
	      xkey.serial = xev->serial;
	      xkey.send_event = xev->send_event;
	      xkey.display = dpyinfo->display;
	      xkey.window = xev->event;
	      xkey.root = xev->root;
	      xkey.subwindow = xev->child;
	      xkey.time = xev->time;
	      xkey.state = state;
	      xkey.x = lrint (xev->event_x);
	      xkey.y = lrint (xev->event_y);
	      xkey.x_root = lrint (xev->root_x);
	      xkey.y_root = lrint (xev->root_y);

	      /* Some input methods react differently depending on the
		 buttons that are pressed.  */
	      xi_convert_button_state (&xev->buttons, &xkey.state);

	      xkey.keycode = xev->detail;
	      xkey.same_screen = True;

#ifdef HAVE_X_I18N
#ifdef USE_GTK
	      if ((!x_gtk_use_native_input
		   && x_filter_event (dpyinfo, (XEvent *) &xkey))
		  || (x_gtk_use_native_input
		      && x_filter_event (dpyinfo, event)))
		{
		  /* Try to attribute core key events from the input
		     method to the input extension event that caused
		     them.  */
		  dpyinfo->pending_keystroke_time = xev->time;
		  dpyinfo->pending_keystroke_source = xev->sourceid;

		  *finish = X_EVENT_DROP;
		  goto XI_OTHER;
		}
#else /* !USE_GTK */
	      if (x_filter_event (dpyinfo, (XEvent *) &xkey))
		{
		  /* Try to attribute core key events from the input
		     method to the input extension event that caused
		     them.  */
		  dpyinfo->pending_keystroke_time = xev->time;
		  dpyinfo->pending_keystroke_source = xev->sourceid;

		  *finish = X_EVENT_DROP;
		  goto XI_OTHER;
		}
#endif /* HAVE_X_I18N */
#elif USE_GTK /* && !HAVE_X_I18N */
	      if ((x_gtk_use_native_input
		   || dpyinfo->prefer_native_input)
		  && xg_filter_key (any, event))
		{
		  /* Try to attribute core key events from the input
		     method to the input extension event that caused
		     them.  */
		  dpyinfo->pending_keystroke_time = xev->time;
		  dpyinfo->pending_keystroke_source = xev->sourceid;

		  *finish = X_EVENT_DROP;
		  goto XI_OTHER;
		}
#endif /* HAVE_X_I18N || USE_GTK */

	      state |= x_emacs_to_x_modifiers (dpyinfo, extra_keyboard_modifiers);

	      /* If mouse-highlight is an integer, input clears out
		 mouse highlighting.  */
	      if (!hlinfo->mouse_face_hidden && FIXNUMP (Vmouse_highlight)
		  && (f == 0
#if ! defined (USE_GTK)
		      || !EQ (f->tool_bar_window, hlinfo->mouse_face_window)
#endif /* !USE_GTK */
		      || !EQ (f->tab_bar_window, hlinfo->mouse_face_window))
		  )
		{
		  mouse_frame = hlinfo->mouse_face_mouse_frame;

		  clear_mouse_face (hlinfo);
		  hlinfo->mouse_face_hidden = true;

		  if (mouse_frame)
		    x_flush_dirty_back_buffer_on (mouse_frame);
		}

	      if (f != 0)
		{
#ifdef USE_GTK
		  /* Don't pass keys to GTK.  A Tab will shift focus to the
		     tool bar in GTK 2.4.  Keys will still go to menus and
		     dialogs because in that case popup_activated is nonzero
		     (see above).  */
		  *finish = X_EVENT_DROP;
#endif /* USE_GTK */

		  XSETFRAME (inev.ie.frame_or_window, f);
		  inev.ie.timestamp = xev->time;

#ifdef HAVE_X_I18N
		  if (FRAME_XIC (f))
		    {
		      Status status_return;
		      nbytes = XmbLookupString (FRAME_XIC (f),
						&xkey, (char *) copy_bufptr,
						copy_bufsiz, &keysym,
						&status_return);
		      coding = FRAME_X_XIM_CODING (f);

		      if (status_return == XBufferOverflow)
			{
			  copy_bufsiz = nbytes + 1;
			  copy_bufptr = SAFE_ALLOCA (copy_bufsiz);
			  nbytes = XmbLookupString (FRAME_XIC (f),
						    &xkey, (char *) copy_bufptr,
						    copy_bufsiz, &keysym,
						    &status_return);
			}

		      if (status_return == XLookupNone)
			goto xi_done_keysym;
		      else if (status_return == XLookupChars)
			{
			  keysym = NoSymbol;
			  state = 0;
			}
		      else if (status_return != XLookupKeySym
			       && status_return != XLookupBoth)
			emacs_abort ();
		    }
		  else
#endif /* HAVE_X_I18N */
		    {
#ifdef HAVE_XKB
		      if (dpyinfo->xkb_desc)
			{
			  KeySym sym;
			  int overflow;

			  /* Translate the keycode into the keysym it
			     represents, using STATE.  MODS_RTRN is
			     set to the modifier bits consumed while
			     undertaking this translation and should
			     be subsequently ignored during keysym
			     translation.  */

			  if (!XkbTranslateKeyCode (dpyinfo->xkb_desc,
						    keycode, state,
						    &mods_rtrn, &keysym))
			    goto xi_done_keysym;

			  /* Save the original keysym in case
			     XkbTranslateKeySym overflows.  */
			  sym = keysym, overflow = 0;

			  /* Translate this keysym and its modifier
			     state into the actual symbol and string
			     it represents.  */
			  nbytes = XkbTranslateKeySym (dpyinfo->display,
						       &keysym,
						       state & ~mods_rtrn,
						       copy_bufptr,
						       copy_bufsiz,
						       &overflow);
			  if (overflow)
			    {
			      copy_bufptr
				= SAFE_ALLOCA ((copy_bufsiz += overflow)
					       * sizeof *copy_bufptr);
			      overflow = 0;

			      /* Use the original keysym derived from
				 the keycode translation.  */
			      nbytes = XkbTranslateKeySym (dpyinfo->display,
							   &sym,
							   state & ~mods_rtrn,
							   copy_bufptr,
							   copy_bufsiz,
							   &overflow);

			      if (overflow)
				nbytes = 0;
			    }

			  coding = Qnil;
			}
		      else
#endif /* HAVE_XKB */
			{
			  /* Save the state within XKEY, then remove
			     all modifier keys Emacs understands from
			     it, forestalling any attempt by
			     XLookupString to introduce control
			     characters.  */

			  old_state = xkey.state;
			  xkey.state &= ~ControlMask;
			  xkey.state &= ~(dpyinfo->meta_mod_mask
					  | dpyinfo->super_mod_mask
					  | dpyinfo->hyper_mod_mask
					  | dpyinfo->alt_mod_mask);

			  nbytes = XLookupString (&xkey, copy_bufptr,
						  copy_bufsiz, &keysym,
						  NULL);

			  xkey.state = old_state;
			}
		    }

		  inev.ie.modifiers = x_x_to_emacs_modifiers (dpyinfo, state);

#ifdef XK_F1
		  if (x_dnd_in_progress
		      && xev->deviceid == x_dnd_keyboard_device
		      && keysym == XK_F1)
		    {
		      x_dnd_xm_use_help = true;
		      goto xi_done_keysym;
		    }
#endif /* XK_F1 */

		  /* See if keysym should make Emacs quit.  */

		  if (dpyinfo->quit_keysym)
		    {
		      if (keysym == dpyinfo->quit_keysym
			  && (xev->time - dpyinfo->quit_keysym_time
			      <= 350))
			{
			  Vquit_flag = Qt;
			  goto xi_done_keysym;
			}

		      if (keysym == dpyinfo->quit_keysym)
			{
			  /* Otherwise, set the last time that keysym
			     was pressed.  */
			  dpyinfo->quit_keysym_time = xev->time;
			  goto xi_done_keysym;
			}
		    }

		  /* First deal with keysyms which have defined
		     translations to characters.  */
		  if (keysym >= 32 && keysym < 128)
		    /* Avoid explicitly decoding each ASCII character.  */
		    {
		      inev.ie.kind = ASCII_KEYSTROKE_EVENT;
		      inev.ie.code = keysym;

		      if (source)
			inev.ie.device = source->name;

		      goto xi_done_keysym;
		    }

		  /* Keysyms directly mapped to Unicode characters.  */
		  if (keysym >= 0x01000000 && keysym <= 0x0110FFFF)
		    {
		      if (keysym < 0x01000080)
			inev.ie.kind = ASCII_KEYSTROKE_EVENT;
		      else
			inev.ie.kind = MULTIBYTE_CHAR_KEYSTROKE_EVENT;

		      if (source)
			inev.ie.device = source->name;

		      inev.ie.code = keysym & 0xFFFFFF;
		      goto xi_done_keysym;
		    }

		  /* Now non-ASCII.  */
		  if (HASH_TABLE_P (Vx_keysym_table)
		      && (c = Fgethash (make_fixnum (keysym),
					Vx_keysym_table,
					Qnil),
			  FIXNATP (c)))
		    {
		      inev.ie.kind = (SINGLE_BYTE_CHAR_P (XFIXNAT (c))
				      ? ASCII_KEYSTROKE_EVENT
				      : MULTIBYTE_CHAR_KEYSTROKE_EVENT);
		      inev.ie.code = XFIXNAT (c);

		      if (source)
			inev.ie.device = source->name;

		      goto xi_done_keysym;
		    }

		  /* Random non-modifier sorts of keysyms.  */
		  if (((keysym >= XK_BackSpace && keysym <= XK_Escape)
		       || keysym == XK_Delete
#ifdef XK_ISO_Left_Tab
		       || (keysym >= XK_ISO_Left_Tab
			   && keysym <= XK_ISO_Enter)
#endif
		       || IsCursorKey (keysym) /* 0xff50 <= x < 0xff60 */
		       || IsMiscFunctionKey (keysym) /* 0xff60 <= x < VARIES */
#ifdef HPUX
		       /* This recognizes the "extended function
			  keys".  It seems there's no cleaner way.
			  Test IsModifierKey to avoid handling
			  mode_switch incorrectly.  */
		       || (XK_Select <= keysym && keysym < XK_KP_Space)
#endif
#ifdef XK_dead_circumflex
		       || keysym == XK_dead_circumflex
#endif
#ifdef XK_dead_grave
		       || keysym == XK_dead_grave
#endif
#ifdef XK_dead_tilde
		       || keysym == XK_dead_tilde
#endif
#ifdef XK_dead_diaeresis
		       || keysym == XK_dead_diaeresis
#endif
#ifdef XK_dead_macron
		       || keysym == XK_dead_macron
#endif
#ifdef XK_dead_degree
		       || keysym == XK_dead_degree
#endif
#ifdef XK_dead_acute
		       || keysym == XK_dead_acute
#endif
#ifdef XK_dead_cedilla
		       || keysym == XK_dead_cedilla
#endif
#ifdef XK_dead_breve
		       || keysym == XK_dead_breve
#endif
#ifdef XK_dead_ogonek
		       || keysym == XK_dead_ogonek
#endif
#ifdef XK_dead_caron
		       || keysym == XK_dead_caron
#endif
#ifdef XK_dead_doubleacute
		       || keysym == XK_dead_doubleacute
#endif
#ifdef XK_dead_abovedot
		       || keysym == XK_dead_abovedot
#endif
#ifdef XK_dead_abovering
		       || keysym == XK_dead_abovering
#endif
#ifdef XK_dead_belowdot
		       || keysym == XK_dead_belowdot
#endif
#ifdef XK_dead_voiced_sound
		       || keysym == XK_dead_voiced_sound
#endif
#ifdef XK_dead_semivoiced_sound
		       || keysym == XK_dead_semivoiced_sound
#endif
#ifdef XK_dead_hook
		       || keysym == XK_dead_hook
#endif
#ifdef XK_dead_horn
		       || keysym == XK_dead_horn
#endif
#ifdef XK_dead_stroke
		       || keysym == XK_dead_stroke
#endif
#ifdef XK_dead_abovecomma
		       || keysym == XK_dead_abovecomma
#endif
		       || IsKeypadKey (keysym) /* 0xff80 <= x < 0xffbe */
		       || IsFunctionKey (keysym) /* 0xffbe <= x < 0xffe1 */
		       /* Any "vendor-specific" key is ok.  */
		       || (keysym & (1 << 28))
		       || (keysym != NoSymbol && nbytes == 0))
		      && ! (IsModifierKey (keysym)
			    /* The symbols from XK_ISO_Lock
			       to XK_ISO_Last_Group_Lock
			       don't have real modifiers but
			       should be treated similarly to
			       Mode_switch by Emacs. */
#if defined XK_ISO_Lock && defined XK_ISO_Last_Group_Lock
			    || (XK_ISO_Lock <= keysym
				&& keysym <= XK_ISO_Last_Group_Lock)
#endif
			    ))
		    {
		      STORE_KEYSYM_FOR_DEBUG (keysym);
		      /* make_lispy_event will convert this to a symbolic
			 key.  */
		      inev.ie.kind = NON_ASCII_KEYSTROKE_EVENT;
		      inev.ie.code = keysym;

		      if (source)
			inev.ie.device = source->name;

		      goto xi_done_keysym;
		    }

		  for (i = 0; i < nbytes; i++)
		    {
		      STORE_KEYSYM_FOR_DEBUG (copy_bufptr[i]);
		    }

		  if (nbytes)
		    {
		      inev.ie.kind = MULTIBYTE_CHAR_KEYSTROKE_EVENT;
		      inev.ie.arg = make_unibyte_string (copy_bufptr, nbytes);

		      Fput_text_property (make_fixnum (0), make_fixnum (nbytes),
					  Qcoding, coding, inev.ie.arg);

		      if (source)
			inev.ie.device = source->name;
		    }
		  goto xi_done_keysym;
		}

	      goto XI_OTHER;
	    }

#if defined USE_GTK && !defined HAVE_GTK3
	  case XI_RawKeyPress:
	    {
	      XIRawEvent *raw_event = (XIRawEvent *) xi_event;

	      /* This is the only way to attribute core keyboard
		 events generated on GTK+ 2.x to the extension device
		 that generated them.  */
	      dpyinfo->pending_keystroke_time = raw_event->time;
	      dpyinfo->pending_keystroke_source = raw_event->sourceid;
	      dpyinfo->pending_keystroke_time_special_p = true;
	      goto XI_OTHER;
	    }
#endif

	  case XI_KeyRelease:
#if defined HAVE_X_I18N || defined USE_GTK || defined USE_LUCID
	    {
	      XKeyPressedEvent xkey;

	      memset (&xkey, 0, sizeof xkey);

	      xkey.type = KeyRelease;
	      xkey.serial = xev->serial;
	      xkey.send_event = xev->send_event;
	      xkey.display = dpyinfo->display;
	      xkey.window = xev->event;
	      xkey.root = xev->root;
	      xkey.subwindow = xev->child;
	      xkey.time = xev->time;
	      xkey.state = xi_convert_event_keyboard_state (xev);
	      xkey.x = lrint (xev->event_x);
	      xkey.y = lrint (xev->event_y);
	      xkey.x_root = lrint (xev->root_x);
	      xkey.y_root = lrint (xev->root_y);

	      /* Some input methods react differently depending on the
		 buttons that are pressed.  */
	      xi_convert_button_state (&xev->buttons, &xkey.state);

	      xkey.keycode = xev->detail;
	      xkey.same_screen = True;

#ifdef USE_LUCID
	      if (!popup_activated ())
		{
#endif
#ifdef HAVE_X_I18N
		  if (x_filter_event (dpyinfo, (XEvent *) &xkey))
		    *finish = X_EVENT_DROP;
#elif defined USE_GTK
		  f = x_any_window_to_frame (xkey->event);

		  if (f && xg_filter_key (f, event))
		    *finish = X_EVENT_DROP;
#endif
#ifdef USE_LUCID
		}
	      else
		{
		  /* FIXME: the Lucid menu bar pops down upon any key
		     release event, so we don't dispatch these events
		     at all, which doesn't seem to be the right
		     solution.

		     use_copy = true;
		     copy.xkey = xkey; */
		}
#endif
	    }
#endif

	    goto XI_OTHER;

	  case XI_PropertyEvent:
	    goto XI_OTHER;

	  case XI_HierarchyChanged:
	    {
	      XIHierarchyEvent *hev;
	      XIDeviceInfo *info;
	      int i, ndevices, n_disabled, *disabled;
	      struct xi_device_t *device;
#if !defined USE_X_TOOLKIT && (!defined USE_GTK || defined HAVE_GTK3)
	      bool any_changed;

	      any_changed = false;
#endif /* !USE_X_TOOLKIT && (!USE_GTK || HAVE_GTK3) */
	      hev = (XIHierarchyEvent *) xi_event;
	      disabled = SAFE_ALLOCA (sizeof *disabled * hev->num_info);
	      n_disabled = 0;

	      for (i = 0; i < hev->num_info; ++i)
		{
		  if (hev->info[i].flags & XIDeviceEnabled)
		    {
		      /* Handle all disabled devices now, to prevent
			 things happening out-of-order later.  */

		      if (n_disabled)
			{
			  xi_disable_devices (dpyinfo, disabled, n_disabled);
			  n_disabled = 0;

#if !defined USE_X_TOOLKIT && (!defined USE_GTK || defined HAVE_GTK3)
			  /* This flag really just means that disabled
			     devices were handled early and should be
			     used in conjunction with n_disabled.  */
			  any_changed = true;
#endif /* !USE_X_TOOLKIT && (!USE_GTK || HAVE_GTK3) */
			}

		      /* Under unknown circumstances, multiple
			 XIDeviceEnabled events are sent at once,
			 causing the device to be duplicated.  Check
			 that the device doesn't exist before adding
			 it.  */

		      if (!xi_device_from_id (dpyinfo,
					      hev->info[i].deviceid))
			{
			  x_catch_errors (dpyinfo->display);
			  info = XIQueryDevice (dpyinfo->display,
						hev->info[i].deviceid,
						&ndevices);
			  x_uncatch_errors ();

			  if (info && info->enabled)
			    {
			      dpyinfo->devices
				= xrealloc (dpyinfo->devices,
					    (sizeof *dpyinfo->devices
					     * ++dpyinfo->num_devices));
			      memset (dpyinfo->devices + dpyinfo->num_devices - 1,
				      0, sizeof *dpyinfo->devices);
			      device = &dpyinfo->devices[dpyinfo->num_devices - 1];
			      xi_populate_device_from_info (dpyinfo, device, info);
			    }

			  if (info)
			    XIFreeDeviceInfo (info);
			}
		    }
		  else if (hev->info[i].flags & XIDeviceDisabled)
		    disabled[n_disabled++] = hev->info[i].deviceid;
		  else if (hev->info[i].flags & XISlaveDetached
			   || hev->info[i].flags & XISlaveAttached)
		    {
		      device = xi_device_from_id (dpyinfo, hev->info[i].deviceid);
		      x_catch_errors (dpyinfo->display);
		      info = XIQueryDevice (dpyinfo->display, hev->info[i].deviceid,
					    &ndevices);
		      x_uncatch_errors ();

		      if (info)
			{
			  if (device)
			    {
			      device->use = info->use;
			      device->attachment = info->attachment;
			    }

			  /* device could have been disabled by now.
			     But instead of removing it immediately,
			     wait for XIDeviceDisabled, or internal
			     state could be left inconsistent.  */

			  XIFreeDeviceInfo (info);
			}
		    }
		}

	      /* Delete all devices that were disabled by this
		 event.  */
	      xi_disable_devices (dpyinfo, disabled, n_disabled);

#if !defined USE_X_TOOLKIT && (!defined USE_GTK || defined HAVE_GTK3)
	      /* If the device hierarchy has been changed, recompute
		 focus.  This might seem like a micro-optimization but
		 it actually keeps the focus from changing in some
		 cases where it would be undesierable.  */
	      if (any_changed || n_disabled)
		xi_handle_focus_change (dpyinfo);
#endif /* !USE_X_TOOLKIT && (!USE_GTK || HAVE_GTK3) */

	      goto XI_OTHER;
	    }

	  case XI_DeviceChanged:
	    {
	      XIDeviceChangedEvent *device_changed;
	      struct xi_device_t *device;

	      device_changed = (XIDeviceChangedEvent *) xi_event;
	      device = xi_device_from_id (dpyinfo, device_changed->deviceid);

	      /* If the device isn't enabled, then stop handling this
		 event.  A HierarchyChanged event will be sent if it
		 is enabled afterwards.  */
	      if (!device)
		goto XI_OTHER;

	      /* Now handle the event by retrieving scroll valuators
		 and touch info.  */
	      xi_handle_device_changed (dpyinfo, device, device_changed);
	      goto XI_OTHER;
	    }

#ifdef HAVE_XINPUT2_2
	  case XI_TouchBegin:
	    {
	      struct xi_device_t *device, *source;
	      bool menu_bar_p = false, tool_bar_p = false;
#ifdef HAVE_GTK3
	      GdkRectangle test_rect;
#endif
	      device = xi_device_from_id (dpyinfo, xev->deviceid);
	      source = xi_device_from_id (dpyinfo, xev->sourceid);
	      x_display_set_last_user_time (dpyinfo, xev->time,
					    xev->send_event, true);

	      /* Don't process touch sequences from this device if
	         it's a master pointer.  Touch sequences aren't
	         canceled by the X server if a slave device is
	         detached, and master pointers may also represent
	         dependent touch devices.  */

	      if (!device || device->use == XIMasterPointer)
		goto XI_OTHER;

	      if (xi_find_touch_point (device, xev->detail))
		emacs_abort ();

	      f = x_window_to_frame (dpyinfo, xev->event);

	      if (f)
		/* See the comment above x_compute_root_window_offset
		   for why this optimization is performed.  */
		xi_compute_root_window_offset (f, xev);

#ifdef HAVE_GTK3
	      menu_bar_p = (f && FRAME_X_OUTPUT (f)->menubar_widget
			    && xg_event_is_for_menubar (f, event));
	      if (f && FRAME_X_OUTPUT (f)->toolbar_widget)
		{
		  int scale = xg_get_scale (f);

		  test_rect.x = xev->event_x / scale;
		  test_rect.y = xev->event_y / scale;
		  test_rect.width = 1;
		  test_rect.height = 1;

		  tool_bar_p = gtk_widget_intersect (FRAME_X_OUTPUT (f)->toolbar_widget,
						     &test_rect, NULL);
		}
#endif

#ifndef HAVE_EXT_TOOL_BAR
	      /* Is this a touch from a direct touch device that is in
		 the tool-bar?  */
	      if (device->direct_p
		  && WINDOWP (f->tool_bar_window)
		  && WINDOW_TOTAL_LINES (XWINDOW (f->tool_bar_window)))
		{
		  Lisp_Object window;
		  int x = xev->event_x;
		  int y = xev->event_y;

		  window = window_from_coordinates (f, x, y, 0, true, true, true);
		  /* Ignore button release events if the mouse
		     wasn't previously pressed on the tool bar.
		     We do this because otherwise selecting some
		     text with the mouse and then releasing it on
		     the tool bar doesn't stop selecting text,
		     since the tool bar eats the button up
		     event.  */
		  tool_bar_p = EQ (window, f->tool_bar_window);

		  /* If this touch has started in the tool bar, do not
		     send it to Lisp.  Instead, simulate a tool bar
		     click, releasing it once it goes away.  */

		  if (tool_bar_p)
		    {
		      /* Call note_mouse_highlight on the tool bar
			 item.  Otherwise, get_tool_bar_item will
			 return 1.

		         This is not necessary when mouse-highlight is
		         nil.  */

		      if (!NILP (Vmouse_highlight))
			{
			  note_mouse_highlight (f, x, y);

			  /* Always allow future mouse motion to
			     update the mouse highlight, no matter
			     where it is.  */
			  memset (&dpyinfo->last_mouse_glyph, 0,
				  sizeof dpyinfo->last_mouse_glyph);
			  dpyinfo->last_mouse_glyph_frame = f;
			}

		      handle_tool_bar_click_with_device (f, x, y, true, 0,
							 (source
							  ? source->name : Qt));

		      /* Flush any changes made by that to the front
			 buffer.  */
		      x_flush_dirty_back_buffer_on (f);

		      /* Record the device and the touch ID on the
			 frame.  That way, Emacs knows when to dismiss
			 the tool bar click later.  */

		      FRAME_OUTPUT_DATA (f)->tool_bar_touch_device
			= device->device_id;
		      FRAME_OUTPUT_DATA (f)->tool_bar_touch_id = xev->detail;

		      goto XI_OTHER;
		    }
		}
#endif

	      if (!menu_bar_p && !tool_bar_p)
		{
		  if (f && device->direct_p)
		    {
		      *finish = X_EVENT_DROP;

		      x_catch_errors (dpyinfo->display);

		      if (x_input_grab_touch_events)
			XIAllowTouchEvents (dpyinfo->display,
					    xev->deviceid,
					    xev->detail, xev->event,
					    XIAcceptTouch);

		      if (!x_had_errors_p (dpyinfo->display))
			{
			  xi_link_touch_point (device, xev->detail,
					       xev->event_x,
					       xev->event_y, f);

			  inev.ie.kind = TOUCHSCREEN_BEGIN_EVENT;
			  inev.ie.timestamp = xev->time;
			  XSETFRAME (inev.ie.frame_or_window, f);
			  XSETINT (inev.ie.x, lrint (xev->event_x));
			  XSETINT (inev.ie.y, lrint (xev->event_y));
			  XSETINT (inev.ie.arg, xev->detail);

			  if (source)
			    inev.ie.device = source->name;
			}

		      x_uncatch_errors ();
		    }
#ifndef HAVE_GTK3
		  else if (x_input_grab_touch_events)
		    {
		      x_ignore_errors_for_next_request (dpyinfo, 0);
		      XIAllowTouchEvents (dpyinfo->display, xev->deviceid,
					  xev->detail, xev->event, XIRejectTouch);
		      x_stop_ignoring_errors (dpyinfo);
		    }
#endif
		}
	      else
		{
#ifdef HAVE_GTK3
		  bool was_waiting_for_input = waiting_for_input;
		  /* This hack was adopted from the NS port.  Whether
		     or not it is actually safe is a different story
		     altogether.  */
		  if (waiting_for_input)
		    waiting_for_input = 0;
		  set_frame_menubar (f, true);
		  waiting_for_input = was_waiting_for_input;
#endif
		}

	      goto XI_OTHER;
	    }

	  case XI_TouchOwnership:
	    {
	      struct xi_device_t *device;
	      struct xi_touch_point_t *touchpoint;
	      XITouchOwnershipEvent *event;

	      /* All grabbing clients have decided to reject ownership
		 of this touch sequence.  */

	      event  = (XITouchOwnershipEvent *) xi_event;
	      device = xi_device_from_id (dpyinfo, event->deviceid);

	      if (!device || device->use == XIMasterPointer)
		goto XI_OTHER;

	      touchpoint = xi_find_touch_point (device, event->touchid);

	      if (!touchpoint)
		goto XI_OTHER;

	      /* As a result, Emacs should complete whatever editing
		 operations result from this touch sequence.  */
	      touchpoint->ownership = TOUCH_OWNERSHIP_SELF;

	      goto XI_OTHER;
	    }

	  case XI_TouchUpdate:
	    {
	      struct xi_device_t *device, *source;
	      struct xi_touch_point_t *touchpoint;
	      Lisp_Object arg = Qnil;

	      /* If flags & TouchPendingEnd, the touch sequence has
		 already ended, but some grabbing clients remain
		 undecided as to whether they will obtain ownership of
		 the touch sequence.

	         Wait for them to make their decision, resulting in
	         TouchOwnership and TouchEnd events being sent.  */

	      if (xev->flags & XITouchPendingEnd)
		goto XI_OTHER;

	      device = xi_device_from_id (dpyinfo, xev->deviceid);
	      source = xi_device_from_id (dpyinfo, xev->sourceid);
	      x_display_set_last_user_time (dpyinfo, xev->time,
					    xev->send_event, true);

	      /* Don't process touch sequences from this device if
	         it's a master pointer.  Touch sequences aren't
	         canceled by the X server if a slave device is
	         detached, and master pointers may also represent
	         dependent touch devices.  */

	      if (!device || device->use == XIMasterPointer)
		goto XI_OTHER;

	      touchpoint = xi_find_touch_point (device, xev->detail);

	      if (!touchpoint
		  /* Don't send this event if nothing has changed
		     either.  */
		  || (touchpoint->x == lrint (xev->event_x)
		      && touchpoint->y == lrint (xev->event_y)))
		goto XI_OTHER;

	      touchpoint->x = lrint (xev->event_x);
	      touchpoint->y = lrint (xev->event_y);

	      f = x_window_to_frame (dpyinfo, xev->event);

	      if (f && device->direct_p)
		{
		  inev.ie.kind = TOUCHSCREEN_UPDATE_EVENT;
		  inev.ie.timestamp = xev->time;
		  XSETFRAME (inev.ie.frame_or_window, f);

		  for (touchpoint = device->touchpoints;
		       touchpoint; touchpoint = touchpoint->next)
		    {
		      if (touchpoint->frame == f)
			arg = Fcons (list3i (touchpoint->x, touchpoint->y,
					     lrint (touchpoint->number)),
				     arg);
		    }

		  if (source)
		    inev.ie.device = source->name;

		  inev.ie.arg = arg;
		}

	      goto XI_OTHER;
	    }

	  case XI_TouchEnd:
	    {
	      struct xi_device_t *device, *source;
	      int state;

	      device = xi_device_from_id (dpyinfo, xev->deviceid);
	      source = xi_device_from_id (dpyinfo, xev->sourceid);
	      x_display_set_last_user_time (dpyinfo, xev->time,
					    xev->send_event, true);

	      /* Don't process touch sequences from this device if
	         it's a master pointer.  Touch sequences aren't
	         canceled by the X server if a slave device is
	         detached, and master pointers may also represent
	         dependent touch devices.  */

	      if (!device || device->use == XIMasterPointer)
		goto XI_OTHER;

	      state = xi_unlink_touch_point (xev->detail, device);

	      if (state)
		{
		  f = x_window_to_frame (dpyinfo, xev->event);

		  if (f && device->direct_p)
		    {
		      inev.ie.kind = TOUCHSCREEN_END_EVENT;
		      inev.ie.timestamp = xev->time;
		      inev.ie.modifiers = state != 2;

		      XSETFRAME (inev.ie.frame_or_window, f);
		      XSETINT (inev.ie.x, lrint (xev->event_x));
		      XSETINT (inev.ie.y, lrint (xev->event_y));
		      XSETINT (inev.ie.arg, xev->detail);

		      if (source)
			inev.ie.device = source->name;
		    }
		}

#ifndef HAVE_EXT_TOOL_BAR
	      /* Now see if the touchpoint was previously on the tool bar.
	         If it was, release the tool bar.  */

	      if (!f)
		f = x_window_to_frame (dpyinfo, xev->event);

	      if (f && (FRAME_OUTPUT_DATA (f)->tool_bar_touch_id
			== xev->detail))
		{
		  if (f->last_tool_bar_item != -1)
		    handle_tool_bar_click_with_device (f, xev->event_x,
						       xev->event_y,
						       false, 0,
						       (source
							? source->name
							: Qnil));

		  /* Cancel any outstanding mouse highlight.  */
		  note_mouse_highlight (f, -1, -1);
		  x_flush_dirty_back_buffer_on (f);

		  /* Now clear the tool bar device.  */
		  FRAME_OUTPUT_DATA (f)->tool_bar_touch_device = 0;
		}
#endif

	      goto XI_OTHER;
	    }

#endif

#ifdef HAVE_XINPUT2_4
	  case XI_GesturePinchBegin:
	  case XI_GesturePinchUpdate:
	    {
	      XIGesturePinchEvent *pev = (XIGesturePinchEvent *) xi_event;
	      struct xi_device_t *device, *source;

	      device = xi_device_from_id (dpyinfo, pev->deviceid);
	      source = xi_device_from_id (dpyinfo, pev->sourceid);
	      x_display_set_last_user_time (dpyinfo, pev->time,
					    pev->send_event, true);

	      if (!device || device->use != XIMasterPointer)
		goto XI_OTHER;

#ifdef HAVE_XWIDGETS
	      struct xwidget_view *xvw = xwidget_view_from_window (pev->event);

	      if (xvw)
		{
		  *finish = X_EVENT_DROP;
		  xwidget_pinch (xvw, pev);
		  goto XI_OTHER;
		}
#endif

	      any = x_window_to_frame (dpyinfo, pev->event);

	      if (any)
		{
		  if (pev->event == FRAME_X_WINDOW (any))
		    xi_compute_root_window_offset_pinch (any, pev);

		  inev.ie.kind = PINCH_EVENT;
		  inev.ie.modifiers
		    = x_x_to_emacs_modifiers (dpyinfo, pev->mods.effective);

		  XSETINT (inev.ie.x, lrint (pev->event_x));
		  XSETINT (inev.ie.y, lrint (pev->event_y));
		  XSETFRAME (inev.ie.frame_or_window, any);
		  inev.ie.arg = list4 (make_float (pev->delta_x),
				       make_float (pev->delta_y),
				       make_float (pev->scale),
				       make_float (pev->delta_angle));

		  if (source)
		    inev.ie.device = source->name;
		}

	      /* Once again GTK seems to crash when confronted by
		 events it doesn't understand.  */
	      *finish = X_EVENT_DROP;
	      goto XI_OTHER;
	    }

	  case XI_GesturePinchEnd:
	    {
#if defined HAVE_XWIDGETS
	      XIGesturePinchEvent *pev = (XIGesturePinchEvent *) xi_event;
	      struct xwidget_view *xvw = xwidget_view_from_window (pev->event);

	      if (xvw)
		xwidget_pinch (xvw, pev);
#endif
	      *finish = X_EVENT_DROP;
	      goto XI_OTHER;
	    }
#endif
	  default:
	    goto XI_OTHER;
	  }

      xi_done_keysym:
#ifdef HAVE_X_I18N
      if (f)
	{
	  struct window *w = XWINDOW (f->selected_window);
	  xic_set_preeditarea (w, w->cursor.x, w->cursor.y);

	  if (FRAME_XIC (f) && (FRAME_XIC_STYLE (f) & XIMStatusArea))
            xic_set_statusarea (f);
	}
#endif
	if (must_free_data)
	  XFreeEventData (dpyinfo->display, &event->xcookie);
	goto done_keysym;

      XI_OTHER:
	if (must_free_data)
	  XFreeEventData (dpyinfo->display, &event->xcookie);
	goto OTHER;
      }
#endif

    default:
#ifdef HAVE_XKB
      if (dpyinfo->supports_xkb
	  && event->type == dpyinfo->xkb_event_type)
	{
	  XkbEvent *xkbevent = (XkbEvent *) event;

	  if (xkbevent->any.xkb_type == XkbNewKeyboardNotify
	      || xkbevent->any.xkb_type == XkbMapNotify)
	    {
	      XkbRefreshKeyboardMapping (&xkbevent->map);

	      if (dpyinfo->xkb_desc)
		{
		  if (XkbGetUpdatedMap (dpyinfo->display,
					(XkbKeySymsMask
					 | XkbKeyTypesMask
					 | XkbModifierMapMask
					 | XkbVirtualModsMask),
					dpyinfo->xkb_desc) == Success)
		    XkbGetNames (dpyinfo->display, XkbAllNamesMask,
				 dpyinfo->xkb_desc);
		  else
		    {
		      XkbFreeKeyboard (dpyinfo->xkb_desc,
				       XkbAllComponentsMask, True);
		      dpyinfo->xkb_desc = NULL;
		    }
		}
	      else
		{
		  dpyinfo->xkb_desc = XkbGetMap (dpyinfo->display,
						 (XkbKeySymsMask
						  | XkbKeyTypesMask
						  | XkbModifierMapMask
						  | XkbVirtualModsMask),
						 XkbUseCoreKbd);

		  if (dpyinfo->xkb_desc)
		    XkbGetNames (dpyinfo->display, XkbAllNamesMask,
				 dpyinfo->xkb_desc);
		}

	      x_find_modifier_meanings (dpyinfo);
	    }
	  else if (x_dnd_in_progress
		   && xkbevent->any.xkb_type == XkbStateNotify)
	    x_dnd_keyboard_state = (xkbevent->state.mods
				    | xkbevent->state.ptr_buttons);
	}
#endif
#ifdef HAVE_XSHAPE
      if (dpyinfo->xshape_supported_p
	  && event->type == dpyinfo->xshape_event_base + ShapeNotify
	  && x_dnd_in_progress && x_dnd_use_toplevels
	  && dpyinfo == FRAME_DISPLAY_INFO (x_dnd_frame))
	{
#ifndef USE_GTK
	  XEvent xevent;
#endif
	  XShapeEvent *xse = (XShapeEvent *) event;
#if defined HAVE_XCB_SHAPE && defined HAVE_XCB_SHAPE_INPUT_RECTS
	  xcb_shape_get_rectangles_cookie_t bounding_rect_cookie;
	  xcb_shape_get_rectangles_reply_t *bounding_rect_reply;
	  xcb_rectangle_iterator_t bounding_rect_iterator;

	  xcb_shape_get_rectangles_cookie_t input_rect_cookie;
	  xcb_shape_get_rectangles_reply_t *input_rect_reply;
	  xcb_rectangle_iterator_t input_rect_iterator;

	  xcb_generic_error_t *error;
#else
	  XRectangle *rects;
	  int rc, ordering;
#endif

	  /* Somehow this really interferes with GTK's own processing
	     of ShapeNotify events.  Not sure what GTK uses them for,
	     but we cannot skip any of them here.  */
#ifndef USE_GTK
	  while (XPending (dpyinfo->display))
	    {
	      XNextEvent (dpyinfo->display, &xevent);

	      if (xevent.type == dpyinfo->xshape_event_base + ShapeNotify
		  && ((XShapeEvent *) &xevent)->window == xse->window)
		xse = (XShapeEvent *) &xevent;
	      else
		{
		  XPutBackEvent (dpyinfo->display, &xevent);
		  break;
		}
	    }
#endif

	  for (struct x_client_list_window *tem = x_dnd_toplevels; tem;
	       tem = tem->next)
	    {
	      if (tem->window == xse->window)
		{
		  if (tem->n_input_rects != -1)
		    xfree (tem->input_rects);
		  if (tem->n_bounding_rects != -1)
		    xfree (tem->bounding_rects);

		  tem->n_input_rects = -1;
		  tem->n_bounding_rects = -1;

#if defined HAVE_XCB_SHAPE && defined HAVE_XCB_SHAPE_INPUT_RECTS
		  bounding_rect_cookie = xcb_shape_get_rectangles (dpyinfo->xcb_connection,
								   (xcb_window_t) xse->window,
								   XCB_SHAPE_SK_BOUNDING);
		  if (dpyinfo->xshape_major > 1
		      || (dpyinfo->xshape_major == 1
			  && dpyinfo->xshape_minor >= 1))
		    input_rect_cookie
		      = xcb_shape_get_rectangles (dpyinfo->xcb_connection,
						  (xcb_window_t) xse->window,
						  XCB_SHAPE_SK_INPUT);

		  bounding_rect_reply = xcb_shape_get_rectangles_reply (dpyinfo->xcb_connection,
									bounding_rect_cookie,
									&error);

		  if (bounding_rect_reply)
		    {
		      bounding_rect_iterator
			= xcb_shape_get_rectangles_rectangles_iterator (bounding_rect_reply);
		      tem->n_bounding_rects = bounding_rect_iterator.rem + 1;
		      tem->bounding_rects = xmalloc (tem->n_bounding_rects
						     * sizeof *tem->bounding_rects);
		      tem->n_bounding_rects = 0;

		      for (; bounding_rect_iterator.rem; xcb_rectangle_next (&bounding_rect_iterator))
			{
			  tem->bounding_rects[tem->n_bounding_rects].x
			    = bounding_rect_iterator.data->x;
			  tem->bounding_rects[tem->n_bounding_rects].y
			    = bounding_rect_iterator.data->y;
			  tem->bounding_rects[tem->n_bounding_rects].width
			    = bounding_rect_iterator.data->width;
			  tem->bounding_rects[tem->n_bounding_rects].height
			    = bounding_rect_iterator.data->height;

			  tem->n_bounding_rects++;
			}

		      free (bounding_rect_reply);
		    }
		  else
		    free (error);

		  if (dpyinfo->xshape_major > 1
		      || (dpyinfo->xshape_major == 1
			  && dpyinfo->xshape_minor >= 1))
		    {
		      input_rect_reply = xcb_shape_get_rectangles_reply (dpyinfo->xcb_connection,
									 input_rect_cookie, &error);

		      if (input_rect_reply)
			{
			  input_rect_iterator
			    = xcb_shape_get_rectangles_rectangles_iterator (input_rect_reply);
			  tem->n_input_rects = input_rect_iterator.rem + 1;
			  tem->input_rects = xmalloc (tem->n_input_rects
						      * sizeof *tem->input_rects);
			  tem->n_input_rects = 0;

			  for (; input_rect_iterator.rem; xcb_rectangle_next (&input_rect_iterator))
			    {
			      tem->input_rects[tem->n_input_rects].x
				= input_rect_iterator.data->x;
			      tem->input_rects[tem->n_input_rects].y
				= input_rect_iterator.data->y;
			      tem->input_rects[tem->n_input_rects].width
				= input_rect_iterator.data->width;
			      tem->input_rects[tem->n_input_rects].height
				= input_rect_iterator.data->height;

			      tem->n_input_rects++;
			    }

			  free (input_rect_reply);
			}
		      else
			free (error);
		    }
#else
		  x_catch_errors (dpyinfo->display);
		  rects = XShapeGetRectangles (dpyinfo->display,
					       xse->window,
					       ShapeBounding,
					       &count, &ordering);
		  rc = x_had_errors_p (dpyinfo->display);
		  x_uncatch_errors_after_check ();

		  /* Does XShapeGetRectangles allocate anything upon an
		     error?  */
		  if (!rc)
		    {
		      tem->n_bounding_rects = count;
		      tem->bounding_rects
			= xmalloc (sizeof *tem->bounding_rects * count);
		      memcpy (tem->bounding_rects, rects,
			      sizeof *tem->bounding_rects * count);

		      XFree (rects);
		    }

#ifdef ShapeInput
		  if (dpyinfo->xshape_major > 1
		      || (dpyinfo->xshape_major == 1
			  && dpyinfo->xshape_minor >= 1))
		    {
		      x_catch_errors (dpyinfo->display);
		      rects = XShapeGetRectangles (dpyinfo->display,
						   xse->window, ShapeInput,
						   &count, &ordering);
		      rc = x_had_errors_p (dpyinfo->display);
		      x_uncatch_errors_after_check ();

		      /* Does XShapeGetRectangles allocate anything upon
			 an error?  */
		      if (!rc)
			{
			  tem->n_input_rects = count;
			  tem->input_rects
			    = xmalloc (sizeof *tem->input_rects * count);
			  memcpy (tem->input_rects, rects,
				  sizeof *tem->input_rects * count);

			  XFree (rects);
			}
		    }
#endif
#endif

		  /* Handle the common case where the input shape equals the
		     bounding shape.  */

		  if (tem->n_input_rects != -1
		      && tem->n_bounding_rects == tem->n_input_rects
		      && !memcmp (tem->bounding_rects, tem->input_rects,
				  tem->n_input_rects * sizeof *tem->input_rects))
		    {
		      xfree (tem->input_rects);
		      tem->n_input_rects = -1;
		    }

		  /* And the common case where there is no input rect and the
		     bounding rect equals the window dimensions.  */

		  if (tem->n_input_rects == -1
		      && tem->n_bounding_rects == 1
		      && tem->bounding_rects[0].width == tem->width
		      && tem->bounding_rects[0].height == tem->height
		      && tem->bounding_rects[0].x == -tem->border_width
		      && tem->bounding_rects[0].y == -tem->border_width)
		    {
		      xfree (tem->bounding_rects);
		      tem->n_bounding_rects = -1;
		    }

		  break;
		}
	    }
	}
#endif
#if defined HAVE_XRANDR && !defined USE_GTK
      if (dpyinfo->xrandr_supported_p
	  && (event->type == (dpyinfo->xrandr_event_base
			      + RRScreenChangeNotify)
	      || event->type == (dpyinfo->xrandr_event_base
				 + RRNotify)))
	{
	  Time timestamp;
	  Lisp_Object current_monitors;
	  XRRScreenChangeNotifyEvent *notify;

	  if (event->type == (dpyinfo->xrandr_event_base
			      + RRScreenChangeNotify))
	    XRRUpdateConfiguration ((XEvent *) event);

	  if (event->type == (dpyinfo->xrandr_event_base
			      + RRScreenChangeNotify))
	    {
	      notify = ((XRRScreenChangeNotifyEvent *) event);
	      timestamp = notify->timestamp;

	      /* Don't set screen dimensions if the notification is
		 for a different screen.  */
	      if (notify->root == dpyinfo->root_window)
		{
		  dpyinfo->screen_width = notify->width;
		  dpyinfo->screen_height = notify->height;
		  dpyinfo->screen_mm_width = notify->mwidth;
		  dpyinfo->screen_mm_height = notify->mheight;
		}
	    }
	  else
	    timestamp = 0;

	  if (x_find_monitors_changed_event (dpyinfo))
	    /* Don't store a MONITORS_CHANGED_EVENT if there is
	       already an undelivered event on the queue.  */
	    goto OTHER;

	  inev.ie.kind = MONITORS_CHANGED_EVENT;
	  inev.ie.timestamp = timestamp;
	  XSETTERMINAL (inev.ie.arg, dpyinfo->terminal);

	  /* Also don't do anything if the monitor configuration
	     didn't really change.  */

	  current_monitors
	    = Fx_display_monitor_attributes_list (inev.ie.arg);

	  if (!NILP (Fequal (current_monitors,
			     dpyinfo->last_monitor_attributes_list)))
	    inev.ie.kind = NO_EVENT;

	  dpyinfo->last_monitor_attributes_list = current_monitors;

	  if (x_dnd_in_progress && x_dnd_update_tooltip)
	    x_dnd_monitors = current_monitors;

	  if (inev.ie.kind != NO_EVENT)
	    x_dnd_update_tooltip_now ();
	}
#endif
#ifdef HAVE_XFIXES
      if (dpyinfo->xfixes_supported_p
	  && event->type == (dpyinfo->xfixes_event_base
			     + XFixesSelectionNotify)
	  && x_handle_selection_monitor_event (dpyinfo, event))
	/* GTK 3 crashes if an XFixesSelectionNotify arrives with a
	   window other than the root window, because it wants to know
	   the screen in order to determine the compositing manager
	   selection name.  (bug#58584) */
	*finish = X_EVENT_DROP;
#endif
    OTHER:
#ifdef USE_X_TOOLKIT
      if (*finish != X_EVENT_DROP)
	{
	  /* Ignore some obviously bogus ConfigureNotify events that
	     other clients have been known to send Emacs.
	     (bug#54051) */
	  if (event->type != ConfigureNotify
	      || (event->xconfigure.width != 0
		  && event->xconfigure.height != 0))
	    {
#if defined USE_X_TOOLKIT && defined HAVE_XINPUT2
	      XtDispatchEvent (use_copy ? &copy : (XEvent *) event);
#else
	      XtDispatchEvent ((XEvent *) event);
#endif
	    }
	}
#endif /* USE_X_TOOLKIT */
#if defined USE_GTK && !defined HAVE_GTK3 && defined HAVE_XINPUT2
      if (*finish != X_EVENT_DROP && copy)
	{
	  gtk_main_do_event (copy);
	  *finish = X_EVENT_DROP;
	}

      if (copy)
	gdk_event_free (copy);
#endif
    break;
    }

 done:
  if (inev.ie.kind != NO_EVENT)
    {
      kbd_buffer_store_buffered_event (&inev, hold_quit);
      count++;
    }

  if (do_help
      && !(hold_quit && hold_quit->kind != NO_EVENT))
    {
      Lisp_Object frame;

      if (f)
	XSETFRAME (frame, f);
      else
	frame = Qnil;

      if (do_help > 0)
	{
	  any_help_event_p = true;
#ifdef HAVE_XINPUT2
	  if (gen_help_device)
	    xi_handle_interaction (dpyinfo, f,
				   gen_help_device,
				   gen_help_time);
#endif
	  gen_help_event (help_echo_string, frame, help_echo_window,
			  help_echo_object, help_echo_pos);
	}
      else
	{
	  help_echo_string = Qnil;
	  gen_help_event (Qnil, frame, Qnil, Qnil, 0);
	}
      count++;
    }

#if defined HAVE_XINPUT2 || defined HAVE_XKB || defined HAVE_X_I18N
  SAFE_FREE ();
#endif

  return count;
}

/* Handles the XEvent EVENT on display DISPLAY.
   This is used for event loops outside the normal event handling,
   i.e. looping while a popup menu or a dialog is posted.

   Returns the value handle_one_xevent sets in the finish argument.  */

#ifdef USE_GTK
static int
#else
int
#endif
x_dispatch_event (XEvent *event, Display *display)
{
  struct x_display_info *dpyinfo;
  int finish = X_EVENT_NORMAL;

  dpyinfo = x_display_info_for_display (display);

  if (dpyinfo)
    {
      /* Block input before calling x_dispatch_event.  */
      block_input ();
      handle_one_xevent (dpyinfo, event, &finish, 0);
      unblock_input ();
    }

  return finish;
}

/* Read events coming from the X server.
   Return as soon as there are no more events to be read.

   Return the number of characters stored into the buffer,
   thus pretending to be `read' (except the characters we store
   in the keyboard buffer can be multibyte, so are not necessarily
   C chars).  */

static int
XTread_socket (struct terminal *terminal, struct input_event *hold_quit)
{
  int count = 0;
  bool event_found = false;
  struct x_display_info *dpyinfo = terminal->display_info.x;

  /* Don't allow XTread_socket to do anything if drag-and-drop is in
     progress.  If unblock_input causes XTread_socket to be called and
     read X events while the drag-and-drop event loop is in progress,
     things can go wrong very quick.

     When x_dnd_unwind_flag is true, the above doesn't apply, since
     the surrounding code takes special precautions to keep it safe.

     That doesn't matter for events from displays other than the
     display of the drag-and-drop operation, though.  */
  if (!x_dnd_unwind_flag
      && ((x_dnd_in_progress
	   && dpyinfo->display == FRAME_X_DISPLAY (x_dnd_frame))
	  || (x_dnd_waiting_for_finish
	      && dpyinfo->display == x_dnd_finish_display)))
    return 0;

  x_clean_failable_requests (dpyinfo);

  block_input ();

  /* For debugging, this gives a way to fake an I/O error.  */
  if (dpyinfo == XTread_socket_fake_io_error)
    {
      XTread_socket_fake_io_error = 0;
      x_io_error_quitter (dpyinfo->display);
    }

#ifndef USE_GTK
  while (XPending (dpyinfo->display))
    {
      int finish;
      XEvent event;

      XNextEvent (dpyinfo->display, &event);

#ifdef HAVE_X_I18N
      /* Filter events for the current X input method.  */
#ifdef HAVE_XINPUT2
      if (event.type != GenericEvent
	  || !dpyinfo->supports_xi2
	  || event.xgeneric.extension != dpyinfo->xi2_opcode)
	{
	  /* Input extension key events are filtered inside
	     handle_one_xevent.  */
#endif
	  if (x_filter_event (dpyinfo, &event))
	    continue;
#ifdef HAVE_XINPUT2
	}
#endif
#endif
      event_found = true;

      count += handle_one_xevent (dpyinfo, &event, &finish, hold_quit);

      if (finish == X_EVENT_GOTO_OUT)
	break;
    }

#else /* USE_GTK */

  /* For GTK we must use the GTK event loop.  But XEvents gets passed
     to our filter function above, and then to the big event switch.
     We use a bunch of globals to communicate with our filter function,
     that is kind of ugly, but it works.

     There is no way to do one display at the time, GTK just does events
     from all displays.  */

  while (gtk_events_pending ())
    {
      current_count = count;
      current_hold_quit = hold_quit;

      gtk_main_iteration ();

      count = current_count;
      current_count = -1;
      current_hold_quit = 0;

      if (current_finish == X_EVENT_GOTO_OUT)
        break;
    }

  /* Now see if `xg_pending_quit_event' was set.  */
  if (xg_pending_quit_event.kind != NO_EVENT)
    {
      /* Check that the frame is still valid.  It could have been
	 deleted between now and the time the event was recorded.  */
      if (FRAME_LIVE_P (XFRAME (xg_pending_quit_event.frame_or_window)))
	/* Store that event into hold_quit and clear the pending quit
	   event.  */
	*hold_quit = xg_pending_quit_event;

      /* If the frame is invalid, just clear the event as well.  */
      xg_pending_quit_event.kind = NO_EVENT;
    }
#endif /* USE_GTK */

  /* On some systems, an X bug causes Emacs to get no more events
     when the window is destroyed.  Detect that.  (1994.)  */
  if (! event_found)
    {
      /* Emacs and the X Server eats up CPU time if XNoOp is done every time.
	 One XNOOP in 100 loops will make Emacs terminate.
	 B. Bretthauer, 1994 */
      x_noop_count++;
      if (x_noop_count >= 100)
	{
	  x_noop_count=0;

	  if (next_noop_dpyinfo == 0)
	    next_noop_dpyinfo = x_display_list;

	  XNoOp (next_noop_dpyinfo->display);

	  /* Each time we get here, cycle through the displays now open.  */
	  next_noop_dpyinfo = next_noop_dpyinfo->next;
	}
    }

  /* If the focus was just given to an auto-raising frame,
     raise it now.  FIXME: handle more than one such frame.  */
  if (dpyinfo->x_pending_autoraise_frame)
    {
      x_raise_frame (dpyinfo->x_pending_autoraise_frame);
      dpyinfo->x_pending_autoraise_frame = NULL;
    }

  unblock_input ();

  return count;
}



\f
/***********************************************************************
			     Text Cursor
 ***********************************************************************/

/* Set clipping for output in glyph row ROW.  W is the window in which
   we operate.  GC is the graphics context to set clipping in.

   If RECT_RETURN is non-NULL, return the clip rectangle within
   *RECT_RETURN.

   ROW may be a text row or, e.g., a mode line.  Text rows must be
   clipped to the interior of the window dedicated to text display,
   mode lines must be clipped to the whole window.  */

static void
x_clip_to_row (struct window *w, struct glyph_row *row,
	       enum glyph_row_area area, GC gc,
	       XRectangle *rect_return)
{
  struct frame *f = XFRAME (WINDOW_FRAME (w));
  XRectangle clip_rect;
  int window_x, window_y, window_width;

  window_box (w, area, &window_x, &window_y, &window_width, 0);

  clip_rect.x = window_x;
  clip_rect.y = WINDOW_TO_FRAME_PIXEL_Y (w, max (0, row->y));
  clip_rect.y = max (clip_rect.y, window_y);
  clip_rect.width = window_width;
  clip_rect.height = row->visible_height;

  x_set_clip_rectangles (f, gc, &clip_rect, 1);

  if (rect_return)
    *rect_return = clip_rect;
}


/* Draw a hollow box cursor on window W in glyph row ROW.  */

static void
x_draw_hollow_cursor (struct window *w, struct glyph_row *row)
{
  struct frame *f = XFRAME (WINDOW_FRAME (w));
  struct x_display_info *dpyinfo = FRAME_DISPLAY_INFO (f);
  Display *dpy = FRAME_X_DISPLAY (f);
  int x, y, wd, h;
  XGCValues xgcv;
  struct glyph *cursor_glyph;
  GC gc;

  /* Get the glyph the cursor is on.  If we can't tell because
     the current matrix is invalid or such, give up.  */
  cursor_glyph = get_phys_cursor_glyph (w);
  if (cursor_glyph == NULL)
    return;

  /* Compute frame-relative coordinates for phys cursor.  */
  get_phys_cursor_geometry (w, row, cursor_glyph, &x, &y, &h);
  wd = w->phys_cursor_width - 1;

  /* The foreground of cursor_gc is typically the same as the normal
     background color, which can cause the cursor box to be invisible.  */
  xgcv.foreground = f->output_data.x->cursor_pixel;
  xgcv.line_width = 1;
  if (dpyinfo->scratch_cursor_gc)
    XChangeGC (dpy, dpyinfo->scratch_cursor_gc, GCForeground | GCLineWidth, &xgcv);
  else
    dpyinfo->scratch_cursor_gc = XCreateGC (dpy, FRAME_X_DRAWABLE (f),
					    GCForeground | GCLineWidth, &xgcv);
  gc = dpyinfo->scratch_cursor_gc;

  /* When on R2L character, show cursor at the right edge of the
     glyph, unless the cursor box is as wide as the glyph or wider
     (the latter happens when x-stretch-cursor is non-nil).  */
  if ((cursor_glyph->resolved_level & 1) != 0
      && cursor_glyph->pixel_width > wd)
    {
      x += cursor_glyph->pixel_width - wd;
      if (wd > 0)
	wd -= 1;
    }
  /* Set clipping, draw the rectangle, and reset clipping again.  */
  x_clip_to_row (w, row, TEXT_AREA, gc, NULL);
  x_draw_rectangle (f, gc, x, y, wd, h - 1);
  x_reset_clip_rectangles (f, gc);
}


/* Draw a bar cursor on window W in glyph row ROW.

   Implementation note: One would like to draw a bar cursor with an
   angle equal to the one given by the font property XA_ITALIC_ANGLE.
   Unfortunately, I didn't find a font yet that has this property set.
   --gerd.  */

static void
x_draw_bar_cursor (struct window *w, struct glyph_row *row, int width, enum text_cursor_kinds kind)
{
  struct frame *f = XFRAME (w->frame);
  struct glyph *cursor_glyph;

  /* If cursor is out of bounds, don't draw garbage.  This can happen
     in mini-buffer windows when switching between echo area glyphs
     and mini-buffer.  */
  cursor_glyph = get_phys_cursor_glyph (w);
  if (cursor_glyph == NULL)
    return;

  /* Experimental avoidance of cursor on xwidget.  */
  if (cursor_glyph->type == XWIDGET_GLYPH)
    return;

  /* If on an image, draw like a normal cursor.  That's usually better
     visible than drawing a bar, esp. if the image is large so that
     the bar might not be in the window.  */
  if (cursor_glyph->type == IMAGE_GLYPH)
    {
      struct glyph_row *r;
      r = MATRIX_ROW (w->current_matrix, w->phys_cursor.vpos);
      draw_phys_cursor_glyph (w, r, DRAW_CURSOR);
    }
  else
    {
      Display *dpy = FRAME_X_DISPLAY (f);
      Drawable drawable = FRAME_X_DRAWABLE (f);
      GC gc = FRAME_DISPLAY_INFO (f)->scratch_cursor_gc;
      unsigned long mask = GCForeground | GCBackground | GCGraphicsExposures;
      struct face *face = FACE_FROM_ID (f, cursor_glyph->face_id);
      XGCValues xgcv;

      /* If the glyph's background equals the color we normally draw
	 the bars cursor in, the bar cursor in its normal color is
	 invisible.  Use the glyph's foreground color instead in this
	 case, on the assumption that the glyph's colors are chosen so
	 that the glyph is legible.  */
      if (face->background == f->output_data.x->cursor_pixel)
	xgcv.background = xgcv.foreground = face->foreground;
      else
	xgcv.background = xgcv.foreground = f->output_data.x->cursor_pixel;
      xgcv.graphics_exposures = False;
      xgcv.line_width = 1;

      mask |= GCLineWidth;

      if (gc)
	XChangeGC (dpy, gc, mask, &xgcv);
      else
	{
          gc = XCreateGC (dpy, drawable, mask, &xgcv);
	  FRAME_DISPLAY_INFO (f)->scratch_cursor_gc = gc;
	}

      x_clip_to_row (w, row, TEXT_AREA, gc, NULL);

      if (kind == BAR_CURSOR)
	{
	  int x = WINDOW_TEXT_TO_FRAME_PIXEL_X (w, w->phys_cursor.x);

	  if (width < 0)
	    width = FRAME_CURSOR_WIDTH (f);
	  width = min (cursor_glyph->pixel_width, width);

	  w->phys_cursor_width = width;

	  /* If the character under cursor is R2L, draw the bar cursor
	     on the right of its glyph, rather than on the left.  */
	  if ((cursor_glyph->resolved_level & 1) != 0)
	    x += cursor_glyph->pixel_width - width;

	  x_fill_rectangle (f, gc, x,
			    WINDOW_TO_FRAME_PIXEL_Y (w, w->phys_cursor.y),
			    width, row->height, false);
	}
      else /* HBAR_CURSOR */
	{
	  int dummy_x, dummy_y, dummy_h;
	  int x = WINDOW_TEXT_TO_FRAME_PIXEL_X (w, w->phys_cursor.x);

	  if (width < 0)
	    width = row->height;

	  width = min (row->height, width);

	  get_phys_cursor_geometry (w, row, cursor_glyph, &dummy_x,
				    &dummy_y, &dummy_h);

	  if ((cursor_glyph->resolved_level & 1) != 0
	      && cursor_glyph->pixel_width > w->phys_cursor_width - 1)
	    x += cursor_glyph->pixel_width - w->phys_cursor_width + 1;
	  x_fill_rectangle (f, gc, x,
			    WINDOW_TO_FRAME_PIXEL_Y (w, w->phys_cursor.y +
                                                     row->height - width),
                            w->phys_cursor_width - 1, width, false);
	}

      x_reset_clip_rectangles (f, gc);
    }
}


/* RIF: Define cursor CURSOR on frame F.  */

static void
x_define_frame_cursor (struct frame *f, Emacs_Cursor cursor)
{
  if (!f->pointer_invisible
      && f->output_data.x->current_cursor != cursor)
    XDefineCursor (FRAME_X_DISPLAY (f), FRAME_X_WINDOW (f), cursor);
  f->output_data.x->current_cursor = cursor;
}


/* RIF: Clear area on frame F.  */

static void
x_clear_frame_area (struct frame *f, int x, int y, int width, int height)
{
  x_clear_area (f, x, y, width, height);
}


/* RIF: Draw cursor on window W.  */

static void
x_draw_window_cursor (struct window *w, struct glyph_row *glyph_row, int x,
		      int y, enum text_cursor_kinds cursor_type,
		      int cursor_width, bool on_p, bool active_p)
{
#ifdef HAVE_X_I18N
  struct frame *f = XFRAME (WINDOW_FRAME (w));
#endif

  if (on_p)
    {
      w->phys_cursor_type = cursor_type;
      w->phys_cursor_on_p = true;

      if (glyph_row->exact_window_width_line_p
	  && (glyph_row->reversed_p
	      ? (w->phys_cursor.hpos < 0)
	      : (w->phys_cursor.hpos >= glyph_row->used[TEXT_AREA])))
	{
	  glyph_row->cursor_in_fringe_p = true;
	  draw_fringe_bitmap (w, glyph_row, glyph_row->reversed_p);
	}
      else
	{
	  switch (cursor_type)
	    {
	    case HOLLOW_BOX_CURSOR:
	      x_draw_hollow_cursor (w, glyph_row);
	      break;

	    case FILLED_BOX_CURSOR:
	      draw_phys_cursor_glyph (w, glyph_row, DRAW_CURSOR);
	      break;

	    case BAR_CURSOR:
	      x_draw_bar_cursor (w, glyph_row, cursor_width, BAR_CURSOR);
	      break;

	    case HBAR_CURSOR:
	      x_draw_bar_cursor (w, glyph_row, cursor_width, HBAR_CURSOR);
	      break;

	    case NO_CURSOR:
	      w->phys_cursor_width = 0;
	      break;

	    default:
	      emacs_abort ();
	    }
	}

#ifdef HAVE_X_I18N
      if (w == XWINDOW (f->selected_window))
	xic_set_preeditarea (w, x, y);
#endif
    }
}

\f
/* Icons.  */

/* Make the x-window of frame F use the gnu icon bitmap.  */

static bool
x_bitmap_icon (struct frame *f, Lisp_Object file)
{
  ptrdiff_t bitmap_id;

  if (FRAME_X_WINDOW (f) == 0)
    return true;

  /* Free up our existing icon bitmap and mask if any.  */
  if (f->output_data.x->icon_bitmap > 0)
    image_destroy_bitmap (f, f->output_data.x->icon_bitmap);
  f->output_data.x->icon_bitmap = 0;

  if (STRINGP (file))
    {
#ifdef USE_GTK
      /* Use gtk_window_set_icon_from_file () if available,
	 It's not restricted to bitmaps */
      if (xg_set_icon (f, file))
	return false;
#endif /* USE_GTK */
      bitmap_id = image_create_bitmap_from_file (f, file);
      x_create_bitmap_mask (f, bitmap_id);
    }
  else
    {
      /* Create the GNU bitmap and mask if necessary.  */
      if (FRAME_DISPLAY_INFO (f)->icon_bitmap_id < 0)
	{
	  ptrdiff_t rc = -1;

#ifdef USE_GTK

          if (xg_set_icon (f, xg_default_icon_file)
              || xg_set_icon_from_xpm_data (f, gnu_xpm_bits))
            {
              FRAME_DISPLAY_INFO (f)->icon_bitmap_id = -2;
              return false;
            }

#elif defined (HAVE_XPM) && defined (HAVE_X_WINDOWS)
	  /* This allocates too many colors.  */
	  if ((FRAME_X_VISUAL_INFO (f)->class == TrueColor
	       || FRAME_X_VISUAL_INFO (f)->class == StaticColor
	       || FRAME_X_VISUAL_INFO (f)->class == StaticGray)
	      /* That pixmap needs about 240 colors, and we should
		 also leave some more space for other colors as
		 well.  */
	      || FRAME_X_VISUAL_INFO (f)->colormap_size >= (240 * 4))
	    {
	      rc = x_create_bitmap_from_xpm_data (f, gnu_xpm_bits);
	      if (rc != -1)
		FRAME_DISPLAY_INFO (f)->icon_bitmap_id = rc;
	    }
#endif

	  /* If all else fails, use the (black and white) xbm image. */
	  if (rc == -1)
	    {
              rc = image_create_bitmap_from_data (f,
                                                  (char *) gnu_xbm_bits,
                                                  gnu_xbm_width,
                                                  gnu_xbm_height);
	      if (rc == -1)
		return true;

	      FRAME_DISPLAY_INFO (f)->icon_bitmap_id = rc;
	      x_create_bitmap_mask (f, FRAME_DISPLAY_INFO (f)->icon_bitmap_id);
	    }
	}

      /* The first time we create the GNU bitmap and mask,
	 this increments the ref-count one extra time.
	 As a result, the GNU bitmap and mask are never freed.
	 That way, we don't have to worry about allocating it again.  */
      image_reference_bitmap (f, FRAME_DISPLAY_INFO (f)->icon_bitmap_id);

      bitmap_id = FRAME_DISPLAY_INFO (f)->icon_bitmap_id;
    }

  x_wm_set_icon_pixmap (f, bitmap_id);
  f->output_data.x->icon_bitmap = bitmap_id;

  return false;
}


/* Make the x-window of frame F use a rectangle with text.
   Use ICON_NAME as the text.  */

bool
x_text_icon (struct frame *f, const char *icon_name)
{
  if (FRAME_X_WINDOW (f) == 0)
    return true;

  {
    XTextProperty text;
    text.value = (unsigned char *) icon_name;
    text.encoding = XA_STRING;
    text.format = 8;
    text.nitems = strlen (icon_name);
    XSetWMIconName (FRAME_X_DISPLAY (f), FRAME_OUTER_WINDOW (f), &text);
  }

  if (f->output_data.x->icon_bitmap > 0)
    image_destroy_bitmap (f, f->output_data.x->icon_bitmap);
  f->output_data.x->icon_bitmap = 0;
  x_wm_set_icon_pixmap (f, 0);

  return false;
}
\f

struct x_error_message_stack
{
  /* Pointer to the error message of any error that was generated, or
     NULL.  */
  char *string;

  /* The display this error handler applies to.  */
  Display *dpy;

  /* A function to call upon an error if non-NULL.  */
  x_special_error_handler handler;

  /* Some data to pass to that handler function.  */
  void *handler_data;

  /* The previous handler in this stack.  */
  struct x_error_message_stack *prev;

  /* The first request that this error handler applies to.  Keeping
     track of this allows us to avoid an XSync yet still have errors
     for previously made requests be handled correctly.  */
  unsigned long first_request;
};

/* Stack of X error message handlers.  Whenever an error is generated
   on a display, look in this stack for an appropriate error handler,
   set its `string' to the error message and call its `handler' with
   `handler_data'.  If no handler applies to the error, don't catch
   it, and let it crash Emacs instead.

   This used to be a pointer to a string in which any error would be
   placed before 2006.  */
static struct x_error_message_stack *x_error_message;

/* The amount of items (depth) in that stack.  */
int x_error_message_count;

/* Compare various request serials while handling wraparound.  Treat a
   difference of more than X_ULONG_MAX / 2 as wraparound.

   Note that these functions truncate serials to 32 bits before
   comparison.  */

static bool
x_is_serial_more_than (unsigned int a, unsigned int b)
{
  if (a > b)
    return true;

  return (b - a > X_ULONG_MAX / 2);
}

static bool
x_is_serial_more_than_or_equal_to (unsigned int a, unsigned int b)
{
  if (a >= b)
    return true;

  return (b - a > X_ULONG_MAX / 2);
}

static bool
x_is_serial_less_than (unsigned int a, unsigned int b)
{
  if (a < b)
    return true;

  return (a - b > X_ULONG_MAX / 2);
}

static bool
x_is_serial_less_than_or_equal_to (unsigned int a, unsigned int b)
{
  if (a <= b)
    return true;

  return (a - b > X_ULONG_MAX / 2);
}

static struct x_error_message_stack *
x_find_error_handler (Display *dpy, XErrorEvent *event)
{
  struct x_error_message_stack *stack;

  stack = x_error_message;

  while (stack)
    {
      if (x_is_serial_more_than_or_equal_to (event->serial,
					     stack->first_request)
	  && dpy == stack->dpy)
	return stack;

      stack = stack->prev;
    }

  return NULL;
}

void
x_unwind_errors_to (int depth)
{
  while (x_error_message_count > depth)
    /* This is safe to call because we check whether or not
       x_error_message->dpy is still alive before calling XSync.  */
    x_uncatch_errors ();
}

#define X_ERROR_MESSAGE_SIZE 200

/* An X error handler which stores the error message in the first
   applicable handler in the x_error_message stack.  This is called
   from *x_error_handler if an x_catch_errors for DISPLAY is in
   effect.  */

static void
x_error_catcher (Display *display, XErrorEvent *event,
		 struct x_error_message_stack *stack)
{
  char buf[X_ERROR_MESSAGE_SIZE];

  XGetErrorText (display, event->error_code,
		 buf, X_ERROR_MESSAGE_SIZE);

  if (stack->string)
    xfree (stack->string);

  stack->string = xstrdup (buf);

  if (stack->handler)
    stack->handler (display, event, stack->string,
		    stack->handler_data);
}

/* Begin trapping X errors for display DPY.

   After calling this function, X protocol errors generated on DPY no
   longer cause Emacs to exit; instead, they are recorded in an error
   handler pushed onto the stack `x_error_message'.

   Calling x_check_errors signals an Emacs error if an X error has
   occurred since the last call to x_catch_errors or x_check_errors.

   Calling x_uncatch_errors resumes the normal error handling,
   skipping an XSync if the last request made is known to have been
   processed.  Calling x_uncatch_errors_after_check is similar, but
   always skips an XSync to the server, and should be used only
   immediately after x_had_errors_p or x_check_errors, or when it is
   known that no requests have been made since the last x_catch_errors
   call for DPY.

   There is no need to use this mechanism for ignoring errors from
   single asynchronous requests, such as sending a ClientMessage to a
   window that might no longer exist.  Use
   x_ignore_errors_for_next_request (paired with
   x_stop_ignoring_errors) instead.  */

void
x_catch_errors_with_handler (Display *dpy, x_special_error_handler handler,
			     void *handler_data)
{
  struct x_error_message_stack *data;

  data = xzalloc (sizeof *data);
  data->dpy = dpy;
  data->handler = handler;
  data->handler_data = handler_data;
  data->prev = x_error_message;
  data->first_request = XNextRequest (dpy);
  x_error_message = data;

  ++x_error_message_count;
}

void
x_catch_errors (Display *dpy)
{
  x_catch_errors_with_handler (dpy, NULL, NULL);
}

/* Return if errors for REQUEST should be ignored even if there is no
   error handler applied.  */
static struct x_failable_request *
x_request_can_fail (struct x_display_info *dpyinfo,
		    unsigned long request)
{
  struct x_failable_request *failable_requests;

  for (failable_requests = dpyinfo->failable_requests;
       failable_requests < dpyinfo->next_failable_request;
       failable_requests++)
    {
      if (x_is_serial_more_than_or_equal_to (request,
					     failable_requests->start)
	  && (!failable_requests->end
	      || x_is_serial_less_than_or_equal_to (request,
						    failable_requests->end)))
	return failable_requests;
    }

  return NULL;
}

/* Remove outdated request serials from
   dpyinfo->failable_requests.  */
static void
x_clean_failable_requests (struct x_display_info *dpyinfo)
{
  struct x_failable_request *first, *last;

  last = dpyinfo->next_failable_request;

  for (first = dpyinfo->failable_requests; first < last; first++)
    {
      if (x_is_serial_more_than (first->start,
				 LastKnownRequestProcessed (dpyinfo->display))
	  || !first->end
	  || x_is_serial_more_than (first->end,
				    LastKnownRequestProcessed (dpyinfo->display)))
	break;
    }

  if (first != last)
    memmove (&dpyinfo->failable_requests, first,
	     sizeof *first * (last - first));

  dpyinfo->next_failable_request = (dpyinfo->failable_requests
				    + (last - first));
}

/* Protect a section of X requests.

   Ignore errors generated by X requests made from now until
   `x_stop_ignoring_errors'.  Each call must be paired with a call to
   `x_stop_ignoring_errors', and recursive calls inside the protected
   section are not allowed.

   The advantage over x_catch_errors followed by
   x_uncatch_errors_after_check is that this function does not sync to
   catch errors if requests were made.  It should be used instead of
   those two functions for catching errors around requests that do not
   require a reply.

   If SELECTION_SERIAL is an arbitrary number greater than zero,
   x_select_handle_selection_error is called with the specified number
   after any errors within the protected section are received to
   delete the selection request that encountered errors.  */

void
x_ignore_errors_for_next_request (struct x_display_info *dpyinfo,
				  unsigned int selection_serial)
{
  struct x_failable_request *request, *max;
  unsigned long next_request;
#ifdef HAVE_GTK3
  GdkDisplay *gdpy;
#endif

  /* This code is not reentrant, so be sure nothing calls it
     recursively in response to input.  */
  block_input ();

#ifdef HAVE_GTK3
  /* GTK 3 tends to override our own error handler inside certain
     callbacks, which this can be called from.  Instead of trying to
     restore our own, add a trap for the following requests with
     GDK as well.  */

  gdpy = gdk_x11_lookup_xdisplay (dpyinfo->display);

  if (gdpy)
    gdk_x11_display_error_trap_push (gdpy);
#endif

  if ((dpyinfo->next_failable_request
       != dpyinfo->failable_requests)
      && (dpyinfo->next_failable_request - 1)->end == 0)
    /* A new sequence should never be started before an old one
       finishes.  Use `x_catch_errors' to nest error handlers.  */
    emacs_abort ();

  request = dpyinfo->next_failable_request;
  max = dpyinfo->failable_requests + N_FAILABLE_REQUESTS;
  next_request = XNextRequest (dpyinfo->display);

  if (request >= max)
    {
      /* There is no point in making this extra sync if all requests
	 are known to have been fully processed.  */
      if ((LastKnownRequestProcessed (dpyinfo->display)
	   != next_request - 1))
	XSync (dpyinfo->display, False);

      x_clean_failable_requests (dpyinfo);
      request = dpyinfo->next_failable_request;
    }

  if (request >= max)
    /* A request should always be made immediately after calling this
       function.  */
    emacs_abort ();

  request->start = next_request;
  request->end = 0;
  request->selection_serial = selection_serial;

  dpyinfo->next_failable_request++;
}

void
x_stop_ignoring_errors (struct x_display_info *dpyinfo)
{
  struct x_failable_request *range;
#ifdef HAVE_GTK3
  GdkDisplay *gdpy;
#endif

  range = dpyinfo->next_failable_request - 1;
  range->end = XNextRequest (dpyinfo->display) - 1;

  /* Abort if no request was made since
     `x_ignore_errors_for_next_request'.  */

  if (x_is_serial_less_than (range->end, range->start))
    emacs_abort ();

#ifdef HAVE_GTK3
  gdpy = gdk_x11_lookup_xdisplay (dpyinfo->display);

  if (gdpy)
    gdk_x11_display_error_trap_pop_ignored (gdpy);
#endif

  unblock_input ();
}

/* Undo the last x_catch_errors call.
   DPY should be the display that was passed to x_catch_errors.

   This version should be used only if the immediately preceding
   X-protocol-related thing was x_check_errors or x_had_error_p, both
   of which issue XSync calls, so we don't need to re-sync here.  */

void
x_uncatch_errors_after_check (void)
{
  struct x_error_message_stack *tmp;

  block_input ();
  tmp = x_error_message;
  x_error_message = x_error_message->prev;
  --x_error_message_count;
  if (tmp->string)
    xfree (tmp->string);
  xfree (tmp);
  unblock_input ();
}

/* Undo the last x_catch_errors call.  */

void
x_uncatch_errors (void)
{
  struct x_error_message_stack *tmp;
  struct x_display_info *dpyinfo;

  /* In rare situations when running Emacs run in daemon mode,
     shutting down an emacsclient via delete-frame can cause
     x_uncatch_errors to be called when x_error_message is set to
     NULL.  */
  if (x_error_message == NULL)
    return;

  block_input ();

  dpyinfo = x_display_info_for_display (x_error_message->dpy);

  /* The display may have been closed before this function is called.
     Check if it is still open before calling XSync.  */
  if (dpyinfo != 0
      /* There is no point in making this extra sync if all requests
	 are known to have been fully processed.  */
      && (LastKnownRequestProcessed (x_error_message->dpy)
	  != XNextRequest (x_error_message->dpy) - 1)
      /* Likewise if no request was made since the trap was
	 installed.  */
      && (NextRequest (x_error_message->dpy)
	  > x_error_message->first_request))
    {
      XSync (x_error_message->dpy, False);
      x_clean_failable_requests (dpyinfo);
    }

  tmp = x_error_message;
  x_error_message = x_error_message->prev;
  --x_error_message_count;
  if (tmp->string)
    xfree (tmp->string);
  xfree (tmp);
  unblock_input ();
}

/* If any X protocol errors have arrived since the last call to
   x_catch_errors or x_check_errors, signal an Emacs error using
   sprintf (a buffer, FORMAT, the x error message text) as the text.  */

void
x_check_errors (Display *dpy, const char *format)
{
  struct x_display_info *dpyinfo;
  char *string;

  /* This shouldn't happen, since x_check_errors should be called
     immediately inside an x_catch_errors block.  */
  if (dpy != x_error_message->dpy)
    emacs_abort ();

  /* There is no point in making this extra sync if all requests
     are known to have been fully processed.  */
  if ((LastKnownRequestProcessed (dpy)
       != XNextRequest (dpy) - 1)
      && (NextRequest (dpy)
	  > x_error_message->first_request))
    XSync (dpy, False);

  dpyinfo = x_display_info_for_display (dpy);

  /* Clean the array of failable requests, since a sync happened.  */
  if (dpyinfo)
    x_clean_failable_requests (dpyinfo);

  if (x_error_message->string)
    {
      string = alloca (strlen (x_error_message->string) + 1);
      strcpy (string, x_error_message->string);

      error (format, string);
    }
}

/* Nonzero if any X protocol errors were generated since the last call
   to x_catch_errors on DPY.  */

bool
x_had_errors_p (Display *dpy)
{
  struct x_display_info *dpyinfo;

  /* This shouldn't happen, since x_check_errors should be called
     immediately inside an x_catch_errors block.  */
  if (dpy != x_error_message->dpy)
    emacs_abort ();

  /* Make sure to catch any errors incurred so far.  */
  if ((LastKnownRequestProcessed (dpy)
       != XNextRequest (dpy) - 1)
      && (NextRequest (dpy)
	  > x_error_message->first_request))
    XSync (dpy, False);

  dpyinfo = x_display_info_for_display (dpy);

  /* Clean the array of failable requests, since a sync happened.  */
  if (dpyinfo)
    x_clean_failable_requests (dpyinfo);

  return !!x_error_message->string;
}

/* Forget about any errors we have had, since we did x_catch_errors on
   DPY.  */

void
x_clear_errors (Display *dpy)
{
  /* This shouldn't happen, since x_check_errors should be called
     immediately inside an x_catch_errors block.  */
  if (dpy != x_error_message->dpy)
    emacs_abort ();

  xfree (x_error_message->string);
  x_error_message->string = NULL;
}

#if false
      /* See comment in unwind_to_catch why calling this is a bad
       * idea.  --lorentey   */
/* Close off all unclosed x_catch_errors calls.  */

void
x_fully_uncatch_errors (void)
{
  while (x_error_message)
    x_uncatch_errors ();
}
#endif

#if false
static unsigned int x_wire_count;

static int
x_trace_wire (Display *dpy)
{
  fprintf (stderr, "Lib call: %u\n", ++x_wire_count);
  return 0;
}
#endif

\f
/************************************************************************
			  Handling X errors
 ************************************************************************/

/* Error message passed to x_connection_closed.  */

static char *error_msg;

/* Try to find a frame in Vframe_list, and make it the selected frame.
   `delete_frame' sometimes misses the initial frame for an unknown
   reason when Emacs is running as a background daemon.  */

static void
x_try_restore_frame (void)
{
  Lisp_Object tail, frame;

  FOR_EACH_FRAME (tail, frame)
    {
      if (!NILP (do_switch_frame (frame, 0, 1, Qnil)))
	return;
    }
}

/* Handle the loss of connection to display DPY.  ERROR_MESSAGE is
   the text of an error message that lead to the connection loss.  */

static void
x_connection_closed (Display *dpy, const char *error_message, bool ioerror)
{
  struct x_display_info *dpyinfo;
  Lisp_Object frame, tail;
  specpdl_ref idx = SPECPDL_INDEX ();
  Emacs_XIOErrorHandler io_error_handler;
  xm_drop_start_message dmsg;
  struct frame *f;
  Lisp_Object minibuf_frame, tmp;
  struct x_failable_request *failable;
  struct x_error_message_stack *stack;
  static Display *current_display;

  /* Prevent recursive calls of this function for the same display.
     This is because destroying a frame might still cause an IO error
     in some cases.  (bug#56528) */
  if (current_display == dpy)
    return;

  current_display = dpy;

  dpyinfo = x_display_info_for_display (dpy);
  error_msg = alloca (strlen (error_message) + 1);
  strcpy (error_msg, error_message);

  /* Inhibit redisplay while frames are being deleted. */
  specbind (Qinhibit_redisplay, Qt);

  /* If drag-and-drop is in progress, cancel drag-and-drop.  If DND
     frame's display is DPY, don't reset event masks or try to send
     responses to other programs because the display is going
     away.  */

  if (x_dnd_in_progress || x_dnd_waiting_for_finish)
    {
      if (!ioerror)
	{
	  /* Handle display disconnect errors here because this function
	     is not reentrant at this particular spot.  */
	  io_error_handler = XSetIOErrorHandler (x_dnd_io_error_handler);

	  if (!!sigsetjmp (x_dnd_disconnect_handler, 1)
	      && x_dnd_in_progress
	      && dpy == (x_dnd_waiting_for_finish
			 ? x_dnd_finish_display
			 : FRAME_X_DISPLAY (x_dnd_frame)))
	    {
	      /* Clean up drag and drop if the drag frame's display isn't
		 the one being disconnected.  */
	      f = x_dnd_frame;

	      if (x_dnd_last_seen_window != None
		  && x_dnd_last_protocol_version != -1)
		x_dnd_send_leave (x_dnd_frame,
				  x_dnd_last_seen_window,
				  x_dnd_last_seen_toplevel);
	      else if (x_dnd_last_seen_window != None
		       && !XM_DRAG_STYLE_IS_DROP_ONLY (x_dnd_last_motif_style)
		       && x_dnd_last_motif_style != XM_DRAG_STYLE_NONE
		       && x_dnd_motif_setup_p)
		{
		  dmsg.reason = XM_DRAG_REASON (XM_DRAG_ORIGINATOR_INITIATOR,
						XM_DRAG_REASON_DROP_START);
		  dmsg.byte_order = XM_BYTE_ORDER_CUR_FIRST;
		  dmsg.timestamp = FRAME_DISPLAY_INFO (f)->last_user_time;
		  dmsg.side_effects
		    = XM_DRAG_SIDE_EFFECT (xm_side_effect_from_action (FRAME_DISPLAY_INFO (f),
								       x_dnd_wanted_action),
					   XM_DROP_SITE_VALID, x_dnd_motif_operations,
					   XM_DROP_ACTION_DROP_CANCEL);
		  dmsg.x = 0;
		  dmsg.y = 0;
		  dmsg.index_atom = x_dnd_motif_atom;
		  dmsg.source_window = FRAME_X_WINDOW (f);

		  x_dnd_send_xm_leave_for_drop (FRAME_DISPLAY_INFO (f), f,
						x_dnd_last_seen_window, 0);
		  xm_send_drop_message (FRAME_DISPLAY_INFO (f), FRAME_X_WINDOW (f),
					x_dnd_last_seen_window, &dmsg);
		}
	    }

	  XSetIOErrorHandler (io_error_handler);
	}

      dpyinfo = x_display_info_for_display (dpy);

      x_dnd_last_seen_window = None;
      x_dnd_last_seen_toplevel = None;
      x_dnd_in_progress = false;
      x_dnd_waiting_for_finish = false;

      if (x_dnd_use_toplevels)
	x_dnd_free_toplevels (!ioerror);

      x_dnd_return_frame_object = NULL;
      x_dnd_movement_frame = NULL;
      x_dnd_wheel_frame = NULL;
      x_dnd_frame = NULL;
    }

  if (dpyinfo)
    {
      /* Protect display from being closed when we delete the last
         frame on it. */
      dpyinfo->reference_count++;
      dpyinfo->terminal->reference_count++;
      if (ioerror)
	dpyinfo->display = 0;
    }

  /* delete_frame can still try to read async input (even though we
     tell pass `noelisp'), because looking up the `delete-before'
     parameter calls Fassq which then calls maybe_quit.  So block
     input while deleting frames.  */
  block_input ();

  /* First delete frames whose mini-buffers are on frames
     that are on the dead display.  */
  FOR_EACH_FRAME (tail, frame)
    {
      /* Tooltip frames don't have these, so avoid crashing.  */

      if (FRAME_TOOLTIP_P (XFRAME (frame)))
	continue;

      minibuf_frame
	= WINDOW_FRAME (XWINDOW (FRAME_MINIBUF_WINDOW (XFRAME (frame))));

      if (FRAME_X_P (XFRAME (frame))
	  && FRAME_X_P (XFRAME (minibuf_frame))
	  && ! EQ (frame, minibuf_frame)
	  && FRAME_DISPLAY_INFO (XFRAME (minibuf_frame)) == dpyinfo)
	delete_frame (frame, Qnoelisp);
    }

  /* Now delete all remaining frames on the dead display.
     We are now sure none of these is used as the mini-buffer
     for another frame that we need to delete.  */
  FOR_EACH_FRAME (tail, frame)
    if (FRAME_X_P (XFRAME (frame))
	&& FRAME_DISPLAY_INFO (XFRAME (frame)) == dpyinfo)
      {
	/* Set this to t so that delete_frame won't get confused
	   trying to find a replacement.  */
	kset_default_minibuffer_frame (FRAME_KBOARD (XFRAME (frame)), Qt);
	delete_frame (frame, Qnoelisp);
      }

  /* If DPYINFO is null, this means we didn't open the display in the
     first place, so don't try to close it.  */
  if (dpyinfo)
    {
      /* We can not call XtCloseDisplay here because it calls XSync.
         XSync inside the error handler apparently hangs Emacs.  On
         current Xt versions, this isn't needed either.  */
#ifdef USE_GTK
      /* A long-standing GTK bug prevents proper disconnect handling
	 <https://gitlab.gnome.org/GNOME/gtk/issues/221>.  Once,
	 the resulting Glib error message loop filled a user's disk.
	 To avoid this, kill Emacs unconditionally on disconnect.  */
      shut_down_emacs (0, Qnil);
      fprintf (stderr, "%s\n\
When compiled with GTK, Emacs cannot recover from X disconnects.\n\
This is a GTK bug: https://gitlab.gnome.org/GNOME/gtk/issues/221\n\
For details, see etc/PROBLEMS.\n",
	       error_msg);
      emacs_abort ();
#endif /* USE_GTK */

      /* Indicate that this display is dead.  */
      dpyinfo->display = 0;

      dpyinfo->reference_count--;
      dpyinfo->terminal->reference_count--;
      if (dpyinfo->reference_count != 0)
        /* We have just closed all frames on this display. */
        emacs_abort ();

      /* This was the last terminal remaining, so print the error
	 message and associated error handlers and kill Emacs.  */
      if (dpyinfo->terminal == terminal_list
	  && !terminal_list->next_terminal)
	{
	  fprintf (stderr, "%s\n", error_msg);

	  if (!ioerror && dpyinfo)
	    {
	      /* Dump the list of error handlers for debugging
		 purposes if the list exists.  */

	      if ((dpyinfo->failable_requests
		   != dpyinfo->next_failable_request) || x_error_message)
		fprintf (stderr, "X error handlers currently installed:\n");

	      for (failable = dpyinfo->failable_requests;
		   failable < dpyinfo->next_failable_request;
		   ++failable)
		{
		  if (failable->end)
		    fprintf (stderr, "Ignoring errors between %lu to %lu\n",
			     failable->start, failable->end);
		  else
		    fprintf (stderr, "Ignoring errors from %lu onwards\n",
			     failable->start);
		}

	      for (stack = x_error_message; stack; stack = stack->prev)
		fprintf (stderr, "Trapping errors from %lu\n",
			 stack->first_request);
	    }
	}

      XSETTERMINAL (tmp, dpyinfo->terminal);
      Fdelete_terminal (tmp, Qnoelisp);
    }

  /* The initial "daemon" frame is sometimes not selected by
     `delete_frame' when Emacs is a background daemon.  */
  if (NILP (selected_frame))
    x_try_restore_frame ();

  unblock_input ();

  /* Sometimes another terminal is still alive, but deleting this
     terminal caused all frames to vanish.  In that case, simply kill
     Emacs, since the next redisplay will abort as there is no more
     selected frame.  (bug#56528) */
  if (terminal_list == 0 || NILP (selected_frame))
    Fkill_emacs (make_fixnum (70), Qnil);

  totally_unblock_input ();

  unbind_to (idx, Qnil);
  clear_waiting_for_input ();

  /* Here, we absolutely have to use a non-local exit (e.g. signal, throw,
     longjmp), because returning from this function would get us back into
     Xlib's code which will directly call `exit'.  */
  current_display = NULL;
  error ("%s", error_msg);
}

static void x_error_quitter (Display *, XErrorEvent *);

/* This is the first-level handler for X protocol errors.
   It calls x_error_quitter or x_error_catcher.  */

static int
x_error_handler (Display *display, XErrorEvent *event)
{
  struct x_error_message_stack *stack;
  struct x_display_info *dpyinfo;
  struct x_failable_request *fail, *last;

#if defined USE_GTK && defined HAVE_GTK3
  if ((event->error_code == BadMatch
       || event->error_code == BadWindow)
      && event->request_code == X_SetInputFocus)
    return 0;
#endif

  dpyinfo = x_display_info_for_display (display);

  if (dpyinfo)
    {
      fail = x_request_can_fail (dpyinfo, event->serial);

      if (fail)
	{
	  /* Now that this request sequence has been fully handled,
	     remove it from the list of requests that can fail.  */

	  if (event->serial == fail->end)
	    {
	      last = dpyinfo->next_failable_request;
	      memmove (&dpyinfo->failable_requests, fail,
		       sizeof *fail * (last - fail));
	      dpyinfo->next_failable_request = (dpyinfo->failable_requests
						+ (last - fail));
	    }

	  /* If a selection transfer is the cause of this error,
	     remove the selection transfer now.  */

	  if (fail->selection_serial)
	    {
	      x_handle_selection_error (fail->selection_serial,
					event);

	      /* Clear selection_serial to prevent
		 x_handle_selection_error from being called again if
		 any more requests within the protected section cause
		 errors to be reported.  */
	      fail->selection_serial = 0;
	    }

	  return 0;
	}
    }

  /* If we try to ungrab or grab a device that doesn't exist anymore
     (that happens a lot in xmenu.c), just ignore the error.  */

#ifdef HAVE_XINPUT2
  /* Handle errors from some specific XI2 requests here to avoid a
     sync in handle_one_xevent.  */
  if (dpyinfo && dpyinfo->supports_xi2
      && event->request_code == dpyinfo->xi2_opcode
      && (event->minor_code == X_XIGrabDevice
	  || event->minor_code == X_XIUngrabDevice
	  || event->minor_code == X_XIAllowEvents))
    return 0;
#endif

  stack = x_find_error_handler (display, event);

  if (stack)
    x_error_catcher (display, event, stack);
  else
    x_error_quitter (display, event);
  return 0;
}

/* This is the usual handler for X protocol errors.
   It kills all frames on the display that we got the error for.
   If that was the only one, it prints an error message and kills Emacs.  */

/* .gdbinit puts a breakpoint here, so make sure it is not inlined.  */

static void NO_INLINE
x_error_quitter (Display *display, XErrorEvent *event)
{
  char buf[256], buf1[800 + INT_STRLEN_BOUND (int)
		      + INT_STRLEN_BOUND (unsigned long)
		      + INT_STRLEN_BOUND (XID)
		      + INT_STRLEN_BOUND (int)];

  /* Ignore BadName errors.  They can happen because of fonts
     or colors that are not defined.  */

  if (event->error_code == BadName)
    return;

  /* Note that there is no real way portable across R3/R4 to get the
     original error handler.  */

  XGetErrorText (display, event->error_code, buf, sizeof (buf));
  sprintf (buf1, "X protocol error: %s on protocol request %d\n"
	   "Serial no: %lu\n"
	   "Failing resource ID (if any): 0x%lx\n"
	   "Minor code: %d\n"
	   "This is a bug!  Please report this to bug-gnu-emacs@gnu.org!\n",
	   buf, event->request_code, event->serial, event->resourceid,
	   event->minor_code);
  x_connection_closed (display, buf1, false);
}


/* This is the handler for X IO errors, always.
   It kills all frames on the display that we lost touch with.
   If that was the only one, it prints an error message and kills Emacs.  */

static int NO_INLINE
x_io_error_quitter (Display *display)
{
  char buf[256];

  snprintf (buf, sizeof buf, "Connection lost to X server '%s'",
	    DisplayString (display));
  x_connection_closed (display, buf, true);

  return 0;
}

\f
/* Changing the font of the frame.  */

/* Give frame F the font FONT-OBJECT as its default font.  The return
   value is FONT-OBJECT.  FONTSET is an ID of the fontset for the
   frame.  If it is negative, generate a new fontset from
   FONT-OBJECT.  */

static Lisp_Object
x_new_font (struct frame *f, Lisp_Object font_object, int fontset)
{
  struct font *font = XFONT_OBJECT (font_object);
  int unit, font_ascent, font_descent;

  if (fontset < 0)
    fontset = fontset_from_font (font_object);
  FRAME_FONTSET (f) = fontset;
  if (FRAME_FONT (f) == font)
    /* This font is already set in frame F.  There's nothing more to
       do.  */
    return font_object;

  FRAME_FONT (f) = font;
  FRAME_BASELINE_OFFSET (f) = font->baseline_offset;
  FRAME_COLUMN_WIDTH (f) = font->average_width;
  get_font_ascent_descent (font, &font_ascent, &font_descent);
  FRAME_LINE_HEIGHT (f) = font_ascent + font_descent;

#ifndef USE_X_TOOLKIT
  FRAME_MENU_BAR_HEIGHT (f) = FRAME_MENU_BAR_LINES (f) * FRAME_LINE_HEIGHT (f);
#endif
  /* We could use a more elaborate calculation here.  */
  FRAME_TAB_BAR_HEIGHT (f) = FRAME_TAB_BAR_LINES (f) * FRAME_LINE_HEIGHT (f);

  /* Compute character columns occupied by scrollbar.

     Don't do things differently for non-toolkit scrollbars
     (Bug#17163).  */
  unit = FRAME_COLUMN_WIDTH (f);
  if (FRAME_CONFIG_SCROLL_BAR_WIDTH (f) > 0)
    FRAME_CONFIG_SCROLL_BAR_COLS (f)
      = (FRAME_CONFIG_SCROLL_BAR_WIDTH (f) + unit - 1) / unit;
  else
    FRAME_CONFIG_SCROLL_BAR_COLS (f) = (14 + unit - 1) / unit;


  /* Don't change the size of a tip frame; there's no point in doing it
     because it's done in Fx_show_tip, and it leads to problems because
     the tip frame has no widget.  */
  if (FRAME_X_WINDOW (f) != 0 && !FRAME_TOOLTIP_P (f))
    adjust_frame_size
      (f, FRAME_COLS (f) * FRAME_COLUMN_WIDTH (f),
       FRAME_LINES (f) * FRAME_LINE_HEIGHT (f), 3, false, Qfont);

#ifdef HAVE_X_I18N
  if (FRAME_XIC (f)
      && (FRAME_XIC_STYLE (f) & (XIMPreeditPosition | XIMStatusArea)))
    {
      block_input ();
      xic_set_xfontset (f, SSDATA (fontset_ascii (fontset)));
      unblock_input ();
    }
#endif

  return font_object;
}

\f
/***********************************************************************
			   X Input Methods
 ***********************************************************************/

#ifdef HAVE_X_I18N

#ifdef HAVE_X11R6

/* HAVE_X11R6 means Xlib conforms to the R6 specification or later.
   HAVE_X11R6_XIM, OTOH, means that Emacs should try to use R6-style
   callback driven input method initialization.  They are separate
   because Sun apparently ships buggy Xlib with some versions of
   Solaris... */

#ifdef HAVE_X11R6_XIM

/* If preedit text is set on F, cancel preedit, free the text, and
   generate the appropriate events to cancel the preedit display.

   This is mainly useful when the connection to the IM server is
   dropped during preconversion.  */

static void
x_maybe_clear_preedit (struct frame *f)
{
  struct x_output *output;
  struct input_event ie;

  output = FRAME_X_OUTPUT (f);

  if (!output->preedit_chars)
    return;

  EVENT_INIT (ie);
  ie.kind = PREEDIT_TEXT_EVENT;
  ie.arg = Qnil;
  XSETFRAME (ie.frame_or_window, f);
  XSETINT (ie.x, 0);
  XSETINT (ie.y, 0);
  kbd_buffer_store_event (&ie);

  xfree (output->preedit_chars);

  output->preedit_size = 0;
  output->preedit_active = false;
  output->preedit_chars = NULL;
  output->preedit_caret = 0;
}

/* XIM destroy callback function, which is called whenever the
   connection to input method XIM dies.  CLIENT_DATA contains a
   pointer to the x_display_info structure corresponding to XIM.  */

static void
xim_destroy_callback (XIM xim, XPointer client_data, XPointer call_data)
{
  struct x_display_info *dpyinfo = (struct x_display_info *) client_data;
  Lisp_Object frame, tail;

  block_input ();

  /* No need to call XDestroyIC.. */
  FOR_EACH_FRAME (tail, frame)
    {
      struct frame *f = XFRAME (frame);
      if (FRAME_X_P (f) && FRAME_DISPLAY_INFO (f) == dpyinfo)
	{
	  FRAME_XIC (f) = NULL;
          xic_free_xfontset (f);

	  /* Free the preedit text if necessary.  */
	  x_maybe_clear_preedit (f);
	}
    }

  /* No need to call XCloseIM.  */
  dpyinfo->xim = NULL;

  /* Also free IM values; those are allocated separately upon
     XGetIMValues.  */
  if (dpyinfo->xim_styles)
    XFree (dpyinfo->xim_styles);
  dpyinfo->xim_styles = NULL;
  unblock_input ();
}

#endif

#endif /* HAVE_X11R6 */

/* Open the connection to the XIM server on display DPYINFO.
   RESOURCE_NAME is the resource name Emacs uses.  */

static void
xim_open_dpy (struct x_display_info *dpyinfo, char *resource_name)
{
#ifdef HAVE_XIM
  XIM xim;
  const char *locale;

  if (dpyinfo->use_xim)
    {
      if (dpyinfo->xim)
	{
	  XCloseIM (dpyinfo->xim);

	  /* Free values left over from the last time the IM
	     connection was established.  */

	  if (dpyinfo->xim_styles)
	    XFree (dpyinfo->xim_styles);
	  dpyinfo->xim_styles = NULL;
	}

      xim = XOpenIM (dpyinfo->display, dpyinfo->rdb, resource_name,
		     emacs_class);
      dpyinfo->xim = xim;

      if (xim)
	{
#ifdef HAVE_X11R6_XIM
	  XIMCallback destroy;
#endif

	  /* Get supported styles and XIM values.  */
	  XGetIMValues (xim, XNQueryInputStyle, &dpyinfo->xim_styles, NULL);

#ifdef HAVE_X11R6_XIM
	  destroy.callback = xim_destroy_callback;
	  destroy.client_data = (XPointer)dpyinfo;
	  XSetIMValues (xim, XNDestroyCallback, &destroy, NULL);
#endif

	  locale = XLocaleOfIM (xim);

	  /* Now try to determine the coding system that should be
	     used.  locale is in Host Portable Character Encoding, and
	     as such can be passed to build_string as is.  */
	  dpyinfo->xim_coding = safe_calln (Vx_input_coding_function,
					    build_string (locale));
	}
    }
  else
#endif /* HAVE_XIM */
    dpyinfo->xim = NULL;
}


#ifdef HAVE_X11R6_XIM

/* XIM instantiate callback function, which is called whenever an XIM
   server is available.  DISPLAY is the display of the XIM.
   CLIENT_DATA contains a pointer to an xim_inst_t structure created
   when the callback was registered.  */

static void
xim_instantiate_callback (Display *display, XPointer client_data, XPointer call_data)
{
  struct xim_inst_t *xim_inst = (struct xim_inst_t *) client_data;
  struct x_display_info *dpyinfo = xim_inst->dpyinfo;

  if (x_dnd_in_progress)
    return;

  /* We don't support multiple XIM connections. */
  if (dpyinfo->xim)
    return;

  xim_open_dpy (dpyinfo, xim_inst->resource_name);

  /* Create XIC for the existing frames on the same display, as long
     as they have no XIC.  */
  if (dpyinfo->xim && dpyinfo->reference_count > 0)
    {
      Lisp_Object tail, frame;

      block_input ();
      FOR_EACH_FRAME (tail, frame)
	{
	  struct frame *f = XFRAME (frame);

	  if (FRAME_X_P (f)
              && FRAME_DISPLAY_INFO (f) == xim_inst->dpyinfo)
	    if (FRAME_XIC (f) == NULL)
	      {
		create_frame_xic (f);
		if (FRAME_XIC_STYLE (f) & XIMStatusArea)
		  xic_set_statusarea (f);
		struct window *w = XWINDOW (f->selected_window);
		xic_set_preeditarea (w, w->cursor.x, w->cursor.y);
	      }
	}

      unblock_input ();
    }
}

#endif /* HAVE_X11R6_XIM */


/* Open a connection to the XIM server on display DPYINFO.
   RESOURCE_NAME is the resource name for Emacs.  On X11R5, open the
   connection only at the first time.  On X11R6, open the connection
   in the XIM instantiate callback function.  */

static void
xim_initialize (struct x_display_info *dpyinfo, char *resource_name)
{
  dpyinfo->xim = NULL;
#ifdef HAVE_XIM
  if (dpyinfo->use_xim)
    {
#ifdef HAVE_X11R6_XIM
      struct xim_inst_t *xim_inst = xmalloc (sizeof *xim_inst);
      Bool ret;

      dpyinfo->xim_callback_data = xim_inst;
      xim_inst->dpyinfo = dpyinfo;
      xim_inst->resource_name = xstrdup (resource_name);

      /* The last argument is XPointer in XFree86 but (XPointer *) on
	 Tru64, at least, but the configure test doesn't work because
	 xim_instantiate_callback can either be XIMProc or XIDProc, so
	 just cast to void *.  */

      ret = XRegisterIMInstantiateCallback (dpyinfo->display,
					    dpyinfo->rdb,
					    xim_inst->resource_name,
					    emacs_class,
					    xim_instantiate_callback,
					    (void *) xim_inst);
      eassert (ret);
#else /* not HAVE_X11R6_XIM */
      xim_open_dpy (dpyinfo, resource_name);
#endif /* not HAVE_X11R6_XIM */
    }
#endif /* HAVE_XIM */
}


/* Close the connection to the XIM server on display DPYINFO.
   Unregister any IM instantiation callback previously installed,
   close the connection to the IM server if possible, and free any
   retrieved IM values.  */

static void
xim_close_dpy (struct x_display_info *dpyinfo)
{
#ifdef HAVE_XIM
#ifdef HAVE_X11R6_XIM
  struct xim_inst_t *xim_inst;
  Bool rc;

  /* If dpyinfo->xim_callback_data is not set, then IM support wasn't
     initialized, which can happen if Xlib doesn't understand the C
     locale being used.  */

  if (dpyinfo->xim_callback_data)
    {
      xim_inst = dpyinfo->xim_callback_data;

      if (dpyinfo->display)
	{
	  rc = XUnregisterIMInstantiateCallback (dpyinfo->display,
						 dpyinfo->rdb,
						 xim_inst->resource_name,
						 emacs_class,
						 xim_instantiate_callback,
						 (void *) xim_inst);
	  eassert (rc);
	}

      xfree (xim_inst->resource_name);
      xfree (xim_inst);
    }
#endif /* HAVE_X11R6_XIM */

  /* Now close the connection to the input method server.  This may
     access the display connection, and isn't safe if the display has
     already been closed.  */

  if (dpyinfo->display && dpyinfo->xim)
    XCloseIM (dpyinfo->xim);
  dpyinfo->xim = NULL;

  /* Free the list of XIM styles retrieved.  */

  if (dpyinfo->xim_styles)
    XFree (dpyinfo->xim_styles);
  dpyinfo->xim_styles = NULL;
#endif /* HAVE_XIM */
}

#endif /* not HAVE_X11R6_XIM */


\f
/* Calculate the absolute position in frame F
   from its current recorded position values and gravity.  */

static void
x_calc_absolute_position (struct frame *f)
{
  int flags = f->size_hint_flags;
  struct frame *p = FRAME_PARENT_FRAME (f);

  /* We have nothing to do if the current position
     is already for the top-left corner.  */
  if (! ((flags & XNegative) || (flags & YNegative)))
    return;

  /* Treat negative positions as relative to the leftmost bottommost
     position that fits on the screen.  */
  if ((flags & XNegative) && (f->left_pos <= 0))
    {
      int width = FRAME_PIXEL_WIDTH (f);

      /* A frame that has been visible at least once should have outer
	 edges.  */
      if (f->output_data.x->has_been_visible && !p)
	{
	  Lisp_Object frame;
	  Lisp_Object edges = Qnil;

	  XSETFRAME (frame, f);
	  edges = Fx_frame_edges (frame, Qouter_edges);
	  if (!NILP (edges))
	    width = (XFIXNUM (Fnth (make_fixnum (2), edges))
		     - XFIXNUM (Fnth (make_fixnum (0), edges)));
	}

      if (p)
	f->left_pos = (FRAME_PIXEL_WIDTH (p) - width - 2 * f->border_width
		       + f->left_pos);
      else
	f->left_pos = (x_display_pixel_width (FRAME_DISPLAY_INFO (f))
		       - width + f->left_pos);

    }

  if ((flags & YNegative) && (f->top_pos <= 0))
    {
      int height = FRAME_PIXEL_HEIGHT (f);

#if defined USE_X_TOOLKIT && defined USE_MOTIF
      /* Something is fishy here.  When using Motif, starting Emacs with
	 `-g -0-0', the frame appears too low by a few pixels.

	 This seems to be so because initially, while Emacs is starting,
	 the column widget's height and the frame's pixel height are
	 different.  The column widget's height is the right one.  In
	 later invocations, when Emacs is up, the frame's pixel height
	 is right, though.

	 It's not obvious where the initial small difference comes from.
	 2000-12-01, gerd.  */

      XtVaGetValues (f->output_data.x->column_widget, XtNheight, &height, NULL);
#endif

      if (f->output_data.x->has_been_visible && !p)
	{
	  Lisp_Object frame;
	  Lisp_Object edges = Qnil;

	  XSETFRAME (frame, f);
	  if (NILP (edges))
	    edges = Fx_frame_edges (frame, Qouter_edges);
	  if (!NILP (edges))
	    height = (XFIXNUM (Fnth (make_fixnum (3), edges))
		      - XFIXNUM (Fnth (make_fixnum (1), edges)));
	}

      if (p)
	f->top_pos = (FRAME_PIXEL_HEIGHT (p) - height - 2 * f->border_width
		       + f->top_pos);
      else
	f->top_pos = (x_display_pixel_height (FRAME_DISPLAY_INFO (f))
		      - height + f->top_pos);
  }

  /* The left_pos and top_pos
     are now relative to the top and left screen edges,
     so the flags should correspond.  */
  f->size_hint_flags &= ~ (XNegative | YNegative);
}

/* CHANGE_GRAVITY is 1 when calling from Fset_frame_position,
   to really change the position, and 0 when calling from
   x_make_frame_visible (in that case, XOFF and YOFF are the current
   position values).  It is -1 when calling from gui_set_frame_parameters,
   which means, do adjust for borders but don't change the gravity.  */

static void
x_set_offset (struct frame *f, int xoff, int yoff, int change_gravity)
{
  int modified_top, modified_left;
#ifdef USE_GTK
  int scale = xg_get_scale (f);
#endif

  if (change_gravity > 0)
    {
      f->top_pos = yoff;
      f->left_pos = xoff;
      f->size_hint_flags &= ~ (XNegative | YNegative);
      if (xoff < 0)
	f->size_hint_flags |= XNegative;
      if (yoff < 0)
	f->size_hint_flags |= YNegative;
      f->win_gravity = NorthWestGravity;
    }

  x_calc_absolute_position (f);

  block_input ();
  x_wm_set_size_hint (f, 0, false);

#ifdef USE_GTK
  if (x_gtk_use_window_move)
    {
      /* When a position change was requested and the outer GTK widget
	 has been realized already, leave it to gtk_window_move to
	 DTRT and return.  Used for Bug#25851 and Bug#25943.  Convert
	 from X pixels to GTK scaled pixels.  */
      if (change_gravity != 0 && FRAME_GTK_OUTER_WIDGET (f))
	gtk_window_move (GTK_WINDOW (FRAME_GTK_OUTER_WIDGET (f)),
			 f->left_pos / scale, f->top_pos / scale);
      unblock_input ();
      return;
    }
#endif /* USE_GTK */

  modified_left = f->left_pos;
  modified_top = f->top_pos;

  if (change_gravity != 0 && FRAME_DISPLAY_INFO (f)->wm_type == X_WMTYPE_A)
    {
      /* Some WMs (twm, wmaker at least) has an offset that is smaller
         than the WM decorations.  So we use the calculated offset instead
         of the WM decoration sizes here (x/y_pixels_outer_diff).  */
      modified_left += FRAME_X_OUTPUT (f)->move_offset_left;
      modified_top += FRAME_X_OUTPUT (f)->move_offset_top;
    }

#ifdef USE_GTK
  /* Make sure we adjust for possible scaling.  */
  gtk_window_move (GTK_WINDOW (FRAME_GTK_OUTER_WIDGET (f)),
		   modified_left / scale, modified_top / scale);
#else
  XMoveWindow (FRAME_X_DISPLAY (f), FRAME_OUTER_WINDOW (f),
	       modified_left, modified_top);
#endif

  /* The following code is too slow over a latent network
     connection.  */
  if (NILP (Vx_lax_frame_positioning))
    {
      /* 'x_sync_with_move' is too costly for dragging child frames.  */
      if (!FRAME_PARENT_FRAME (f)
	  /* If no window manager exists, just calling XSync will be
	     sufficient to ensure that the window geometry has been
	     updated.  */
	  && NILP (Vx_no_window_manager))
	{
	  x_sync_with_move (f, f->left_pos, f->top_pos,
			    FRAME_DISPLAY_INFO (f)->wm_type == X_WMTYPE_UNKNOWN);

	  /* change_gravity is non-zero when this function is called from Lisp to
	     programmatically move a frame.  In that case, we call
	     x_check_expected_move to discover if we have a "Type A" or "Type B"
	     window manager, and, for a "Type A" window manager, adjust the position
	     of the frame.

	     We call x_check_expected_move if a programmatic move occurred, and
	     either the window manager type (A/B) is unknown or it is Type A but we
	     need to compute the top/left offset adjustment for this frame.  */

	  if (change_gravity != 0
	      && (FRAME_DISPLAY_INFO (f)->wm_type == X_WMTYPE_UNKNOWN
		  || (FRAME_DISPLAY_INFO (f)->wm_type == X_WMTYPE_A
		      && (FRAME_X_OUTPUT (f)->move_offset_left == 0
			  && FRAME_X_OUTPUT (f)->move_offset_top == 0))))
	    x_check_expected_move (f, modified_left, modified_top);
	}
      /* Instead, just wait for the last ConfigureWindow request to
	 complete.  No window manager is involved when moving child
	 frames.  */
      else
	XSync (FRAME_X_DISPLAY (f), False);
    }

  unblock_input ();
}

static Window
x_get_wm_check_window (struct x_display_info *dpyinfo)
{
  Window result;
  unsigned char *tmp_data = NULL;
  int rc, actual_format;
  unsigned long actual_size, bytes_remaining;
  Atom actual_type;

  rc = XGetWindowProperty (dpyinfo->display, dpyinfo->root_window,
			   dpyinfo->Xatom_net_supporting_wm_check,
                           0, 1, False, XA_WINDOW, &actual_type,
			   &actual_format, &actual_size,
                           &bytes_remaining, &tmp_data);

  if (rc != Success || actual_type != XA_WINDOW
      || actual_format != 32 || actual_size != 1)
    {
      if (tmp_data)
	XFree (tmp_data);

      return None;
    }

  result = *(Window *) tmp_data;
  XFree (tmp_data);

  return result;
}

/* Return true if _NET_SUPPORTING_WM_CHECK window exists and _NET_SUPPORTED
   on the root window for frame F contains ATOMNAME.
   This is how a WM check shall be done according to the Window Manager
   Specification/Extended Window Manager Hints at
   https://freedesktop.org/wiki/Specifications/wm-spec/.  */

bool
x_wm_supports_1 (struct x_display_info *dpyinfo, Atom want_atom)
{
  Atom actual_type;
  unsigned long actual_size, bytes_remaining;
  int i, rc, actual_format;
  bool ret;
  Window wmcheck_window;
  Window target_window = dpyinfo->root_window;
  int max_len = 65536;
  Display *dpy = dpyinfo->display;
  unsigned char *tmp_data = NULL;
  Atom target_type = XA_WINDOW;

  /* The user says there's no window manager, so take him up on
     it.  */
  if (!NILP (Vx_no_window_manager))
    return false;

  /* If the window system says Emacs is untrusted, there will be no
     way to send any information to the window manager, making any
     hints useless.  */
  if (dpyinfo->untrusted)
    return false;

  block_input ();

  x_catch_errors (dpy);

  wmcheck_window = dpyinfo->net_supported_window;

  if (wmcheck_window == None)
    wmcheck_window = x_get_wm_check_window (dpyinfo);

  if (!x_special_window_exists_p (dpyinfo, wmcheck_window))
    {
      if (dpyinfo->net_supported_window != None)
	{
	  dpyinfo->net_supported_window = None;
	  wmcheck_window = x_get_wm_check_window (dpyinfo);

	  if (!x_special_window_exists_p (dpyinfo, wmcheck_window))
	    {
	      x_uncatch_errors ();
	      unblock_input ();
	      return false;
	    }
	}
      else
	{
	  x_uncatch_errors ();
	  unblock_input ();
	  return false;
	}
    }

  if (dpyinfo->net_supported_window != wmcheck_window)
    {
      /* Window changed, reload atoms */
      if (dpyinfo->net_supported_atoms != NULL)
        XFree (dpyinfo->net_supported_atoms);
      dpyinfo->net_supported_atoms = NULL;
      dpyinfo->nr_net_supported_atoms = 0;
      dpyinfo->net_supported_window = 0;

      target_type = XA_ATOM;
      tmp_data = NULL;
      rc = XGetWindowProperty (dpy, target_window,
                               dpyinfo->Xatom_net_supported,
                               0, max_len, False, target_type,
                               &actual_type, &actual_format, &actual_size,
                               &bytes_remaining, &tmp_data);

      if (rc != Success || actual_type != XA_ATOM || x_had_errors_p (dpy))
        {
          if (tmp_data)
	    XFree (tmp_data);
          x_uncatch_errors ();
          unblock_input ();
          return false;
        }

      dpyinfo->net_supported_atoms = (Atom *) tmp_data;
      dpyinfo->nr_net_supported_atoms = actual_size;
      dpyinfo->net_supported_window = wmcheck_window;
    }

  ret = false;

  for (i = 0; !ret && i < dpyinfo->nr_net_supported_atoms; ++i)
    ret = dpyinfo->net_supported_atoms[i] == want_atom;

  x_uncatch_errors ();
  unblock_input ();

  return ret;
}

bool
x_wm_supports (struct frame *f, Atom want_atom)
{
  return x_wm_supports_1 (FRAME_DISPLAY_INFO (f),
			  want_atom);
}

static void
set_wm_state (Lisp_Object frame, bool add, Atom atom, Atom value)
{
  struct x_display_info *dpyinfo;
  XEvent msg;

  dpyinfo = FRAME_DISPLAY_INFO (XFRAME (frame));
  msg.xclient.type = ClientMessage;
  msg.xclient.window = FRAME_OUTER_WINDOW (XFRAME (frame));
  msg.xclient.message_type = dpyinfo->Xatom_net_wm_state;
  msg.xclient.format = 32;

  msg.xclient.data.l[0] = add ? 1 : 0;
  msg.xclient.data.l[1] = atom;
  msg.xclient.data.l[2] = value;
  msg.xclient.data.l[3] = 1; /* Source indication.  */
  msg.xclient.data.l[4] = 0;

  block_input ();
  XSendEvent (dpyinfo->display, dpyinfo->root_window,
	      False, (SubstructureRedirectMask
		      | SubstructureNotifyMask), &msg);
  unblock_input ();
}

void
x_set_sticky (struct frame *f, Lisp_Object new_value, Lisp_Object old_value)
{
  Lisp_Object frame;
  struct x_display_info *dpyinfo = FRAME_DISPLAY_INFO (f);

  XSETFRAME (frame, f);

  set_wm_state (frame, !NILP (new_value),
                dpyinfo->Xatom_net_wm_state_sticky, None);
}

void
x_set_shaded (struct frame *f, Lisp_Object new_value, Lisp_Object old_value)
{
  Lisp_Object frame;
  struct x_display_info *dpyinfo = FRAME_DISPLAY_INFO (f);

  XSETFRAME (frame, f);

  set_wm_state (frame, !NILP (new_value),
                dpyinfo->Xatom_net_wm_state_shaded, None);
}

/**
 * x_set_skip_taskbar:
 *
 * Set frame F's `skip-taskbar' parameter.  If non-nil, this should
 * remove F's icon from the taskbar associated with the display of F's
 * window-system window and inhibit switching to F's window via
 * <Alt>-<TAB>.  If nil, lift these restrictions.
 *
 * Some window managers may not honor this parameter.
 */
void
x_set_skip_taskbar (struct frame *f, Lisp_Object new_value, Lisp_Object old_value)
{
  if (!EQ (new_value, old_value))
    {
#ifdef USE_GTK
      xg_set_skip_taskbar (f, new_value);
#else
      Lisp_Object frame;
      struct x_display_info *dpyinfo = FRAME_DISPLAY_INFO (f);

      XSETFRAME (frame, f);
      set_wm_state (frame, !NILP (new_value),
		    dpyinfo->Xatom_net_wm_state_skip_taskbar, None);
#endif /* USE_GTK */
      FRAME_SKIP_TASKBAR (f) = !NILP (new_value);
    }
}

/**
 * x_set_z_group:
 *
 * Set frame F's `z-group' parameter.  If `above', F's window-system
 * window is displayed above all windows that do not have the `above'
 * property set.  If nil, F's window is shown below all windows that
 * have the `above' property set and above all windows that have the
 * `below' property set.  If `below', F's window is displayed below all
 * windows that do not have the `below' property set.
 *
 * Some window managers may not honor this parameter.
 *
 * Internally, this function also handles a value 'above-suspended'.
 * That value is used to temporarily remove F from the 'above' group
 * to make sure that it does not obscure a menu currently popped up.
 */
void
x_set_z_group (struct frame *f, Lisp_Object new_value, Lisp_Object old_value)
{
  /* We don't care about old_value.  The window manager might have
     reset the value without telling us.  */
  Lisp_Object frame;
  struct x_display_info *dpyinfo = FRAME_DISPLAY_INFO (f);

  XSETFRAME (frame, f);

  if (NILP (new_value))
    {
      set_wm_state (frame, false,
		    dpyinfo->Xatom_net_wm_state_above, None);
      set_wm_state (frame, false,
		    dpyinfo->Xatom_net_wm_state_below, None);
      FRAME_Z_GROUP (f) = z_group_none;
    }
  else if (EQ (new_value, Qabove))
    {
      set_wm_state (frame, true,
		    dpyinfo->Xatom_net_wm_state_above, None);
      set_wm_state (frame, false,
		    dpyinfo->Xatom_net_wm_state_below, None);
      FRAME_Z_GROUP (f) = z_group_above;
    }
  else if (EQ (new_value, Qbelow))
    {
      set_wm_state (frame, false,
		    dpyinfo->Xatom_net_wm_state_above, None);
      set_wm_state (frame, true,
		    dpyinfo->Xatom_net_wm_state_below, None);
      FRAME_Z_GROUP (f) = z_group_below;
    }
  else if (EQ (new_value, Qabove_suspended))
    {
      set_wm_state (frame, false,
		    dpyinfo->Xatom_net_wm_state_above, None);
      FRAME_Z_GROUP (f) = z_group_above_suspended;
    }
  else
    error ("Invalid z-group specification");
}


/* Return the current _NET_WM_STATE.
   SIZE_STATE is set to one of the FULLSCREEN_* values.
   Set *STICKY to the sticky state.

   Return true iff we are not hidden.  */

static bool
x_get_current_wm_state (struct frame *f,
                        Window window,
                        int *size_state,
                        bool *sticky,
			bool *shaded)
{
  unsigned long actual_size;
  int i;
  bool is_hidden = false;
  struct x_display_info *dpyinfo = FRAME_DISPLAY_INFO (f);
  long max_len = 65536;
  Atom target_type = XA_ATOM;
  /* If XCB is available, we can avoid three XSync calls.  */
#ifdef USE_XCB
  xcb_get_property_cookie_t prop_cookie;
  xcb_get_property_reply_t *prop;
  typedef xcb_atom_t reply_data_object;
#else
  Display *dpy = FRAME_X_DISPLAY (f);
  unsigned long bytes_remaining;
  int rc, actual_format;
  Atom actual_type;
  unsigned char *tmp_data = NULL;
  typedef Atom reply_data_object;
#endif
  reply_data_object *reply_data;
# if defined GCC_LINT || defined lint
  reply_data_object reply_data_dummy;
  reply_data = &reply_data_dummy;
# endif

  *sticky = false;
  *size_state = FULLSCREEN_NONE;
  *shaded = false;

  block_input ();

#ifdef USE_XCB
  prop_cookie = xcb_get_property (dpyinfo->xcb_connection, 0, window,
                                  dpyinfo->Xatom_net_wm_state,
                                  target_type, 0, max_len);
  prop = xcb_get_property_reply (dpyinfo->xcb_connection, prop_cookie, NULL);
  if (prop && prop->type == target_type)
    {
      int actual_bytes = xcb_get_property_value_length (prop);
      eassume (0 <= actual_bytes);
      actual_size = actual_bytes / sizeof *reply_data;
      reply_data = xcb_get_property_value (prop);
    }
  else
    {
      actual_size = 0;
      is_hidden = FRAME_ICONIFIED_P (f);
    }
#else
  x_catch_errors (dpy);
  rc = XGetWindowProperty (dpy, window, dpyinfo->Xatom_net_wm_state,
                           0, max_len, False, target_type,
                           &actual_type, &actual_format, &actual_size,
                           &bytes_remaining, &tmp_data);

  if (rc == Success && actual_type == target_type && ! x_had_errors_p (dpy))
    reply_data = (Atom *) tmp_data;
  else
    {
      actual_size = 0;
      is_hidden = FRAME_ICONIFIED_P (f);
    }

  x_uncatch_errors ();
#endif

  for (i = 0; i < actual_size; ++i)
    {
      Atom a = reply_data[i];
      if (a == dpyinfo->Xatom_net_wm_state_hidden)
	is_hidden = true;
      else if (a == dpyinfo->Xatom_net_wm_state_maximized_horz)
        {
          if (*size_state == FULLSCREEN_HEIGHT)
            *size_state = FULLSCREEN_MAXIMIZED;
          else
            *size_state = FULLSCREEN_WIDTH;
        }
      else if (a == dpyinfo->Xatom_net_wm_state_maximized_vert)
        {
          if (*size_state == FULLSCREEN_WIDTH)
            *size_state = FULLSCREEN_MAXIMIZED;
          else
            *size_state = FULLSCREEN_HEIGHT;
        }
      else if (a == dpyinfo->Xatom_net_wm_state_fullscreen)
        *size_state = FULLSCREEN_BOTH;
      else if (a == dpyinfo->Xatom_net_wm_state_sticky)
        *sticky = true;
      else if (a == dpyinfo->Xatom_net_wm_state_shaded)
	*shaded = true;
    }

#ifdef USE_XCB
  free (prop);
#else
  if (tmp_data) XFree (tmp_data);
#endif

  unblock_input ();
  return ! is_hidden;
}

/* Do fullscreen as specified in extended window manager hints */

static bool
do_ewmh_fullscreen (struct frame *f)
{
  struct x_display_info *dpyinfo = FRAME_DISPLAY_INFO (f);
  bool have_net_atom = x_wm_supports (f, dpyinfo->Xatom_net_wm_state);
  int cur;
  bool dummy;

  x_get_current_wm_state (f, FRAME_OUTER_WINDOW (f), &cur, &dummy, &dummy);

  /* Some window managers don't say they support _NET_WM_STATE, but they do say
     they support _NET_WM_STATE_FULLSCREEN.  Try that also.  */
  if (!have_net_atom)
    have_net_atom = x_wm_supports (f, dpyinfo->Xatom_net_wm_state_fullscreen);

  if (have_net_atom && cur != f->want_fullscreen)
    {
      Lisp_Object frame;

      XSETFRAME (frame, f);

      /* Keep number of calls to set_wm_state as low as possible.
         Some window managers, or possible Gtk+, hangs when too many
         are sent at once.  */
      switch (f->want_fullscreen)
        {
        case FULLSCREEN_BOTH:
          if (cur != FULLSCREEN_BOTH)
            set_wm_state (frame, true, dpyinfo->Xatom_net_wm_state_fullscreen,
                          None);
          break;
        case FULLSCREEN_WIDTH:
	  if (x_frame_normalize_before_maximize && cur == FULLSCREEN_MAXIMIZED)
	    {
	      set_wm_state (frame, false,
			    dpyinfo->Xatom_net_wm_state_maximized_horz,
			    dpyinfo->Xatom_net_wm_state_maximized_vert);
	      set_wm_state (frame, true,
			    dpyinfo->Xatom_net_wm_state_maximized_horz, None);
	    }
	  else
	    {
	      if (cur == FULLSCREEN_BOTH || cur == FULLSCREEN_HEIGHT
		  || cur == FULLSCREEN_MAXIMIZED)
		set_wm_state (frame, false, dpyinfo->Xatom_net_wm_state_fullscreen,
			      dpyinfo->Xatom_net_wm_state_maximized_vert);
	      if (cur != FULLSCREEN_MAXIMIZED || x_frame_normalize_before_maximize)
		set_wm_state (frame, true,
			      dpyinfo->Xatom_net_wm_state_maximized_horz, None);
	    }
          break;
        case FULLSCREEN_HEIGHT:
	  if (x_frame_normalize_before_maximize && cur == FULLSCREEN_MAXIMIZED)
	    {
	      set_wm_state (frame, false,
			    dpyinfo->Xatom_net_wm_state_maximized_horz,
			    dpyinfo->Xatom_net_wm_state_maximized_vert);
	      set_wm_state (frame, true,
			    dpyinfo->Xatom_net_wm_state_maximized_vert, None);
	    }
	  else
	    {
	      if (cur == FULLSCREEN_BOTH || cur == FULLSCREEN_WIDTH
		  || cur == FULLSCREEN_MAXIMIZED)
		set_wm_state (frame, false, dpyinfo->Xatom_net_wm_state_fullscreen,
			      dpyinfo->Xatom_net_wm_state_maximized_horz);
	      if (cur != FULLSCREEN_MAXIMIZED || x_frame_normalize_before_maximize)
		set_wm_state (frame, true,
			      dpyinfo->Xatom_net_wm_state_maximized_vert, None);
	    }
          break;
        case FULLSCREEN_MAXIMIZED:
	  if (x_frame_normalize_before_maximize && cur == FULLSCREEN_BOTH)
	    {
	      set_wm_state (frame, false,
			    dpyinfo->Xatom_net_wm_state_fullscreen, None);
	      set_wm_state (frame, true,
			    dpyinfo->Xatom_net_wm_state_maximized_horz,
			    dpyinfo->Xatom_net_wm_state_maximized_vert);
	    }
	  else if (x_frame_normalize_before_maximize && cur == FULLSCREEN_WIDTH)
	    {
	      set_wm_state (frame, false,
			    dpyinfo->Xatom_net_wm_state_maximized_horz, None);
	      set_wm_state (frame, true,
			    dpyinfo->Xatom_net_wm_state_maximized_horz,
			    dpyinfo->Xatom_net_wm_state_maximized_vert);
	    }
	  else if (x_frame_normalize_before_maximize && cur == FULLSCREEN_HEIGHT)
	    {
	      set_wm_state (frame, false,
			    dpyinfo->Xatom_net_wm_state_maximized_vert, None);
	      set_wm_state (frame, true,
			    dpyinfo->Xatom_net_wm_state_maximized_horz,
			    dpyinfo->Xatom_net_wm_state_maximized_vert);
	    }
	  else
	    {
	      if (cur == FULLSCREEN_BOTH)
		set_wm_state (frame, false, dpyinfo->Xatom_net_wm_state_fullscreen,
			      None);
	      else if (cur == FULLSCREEN_HEIGHT)
		set_wm_state (frame, true,
			      dpyinfo->Xatom_net_wm_state_maximized_horz, None);
	      else if (cur == FULLSCREEN_WIDTH)
		set_wm_state (frame, true, None,
			      dpyinfo->Xatom_net_wm_state_maximized_vert);
	      else
		set_wm_state (frame, true,
			      dpyinfo->Xatom_net_wm_state_maximized_horz,
			      dpyinfo->Xatom_net_wm_state_maximized_vert);
	    }
          break;
        case FULLSCREEN_NONE:
          if (cur == FULLSCREEN_BOTH)
            set_wm_state (frame, false, dpyinfo->Xatom_net_wm_state_fullscreen,
			  None);
          else
            set_wm_state (frame, false,
			  dpyinfo->Xatom_net_wm_state_maximized_horz,
                          dpyinfo->Xatom_net_wm_state_maximized_vert);
        }

      f->want_fullscreen = FULLSCREEN_NONE;

    }

  return have_net_atom;
}

static void
XTfullscreen_hook (struct frame *f)
{
  if (!FRAME_VISIBLE_P (f))
    return;

  block_input ();
  x_check_fullscreen (f);
  unblock_input ();
}


static bool
x_handle_net_wm_state (struct frame *f, const XPropertyEvent *event)
{
  int value = FULLSCREEN_NONE;
  Lisp_Object lval;
  bool sticky = false, shaded = false;
  bool not_hidden = x_get_current_wm_state (f, event->window,
					    &value, &sticky,
					    &shaded);

  lval = Qnil;
  switch (value)
    {
    case FULLSCREEN_WIDTH:
      lval = Qfullwidth;
      break;
    case FULLSCREEN_HEIGHT:
      lval = Qfullheight;
      break;
    case FULLSCREEN_BOTH:
      lval = Qfullboth;
      break;
    case FULLSCREEN_MAXIMIZED:
      lval = Qmaximized;
      break;
    }

  store_frame_param (f, Qfullscreen, lval);
  store_frame_param (f, Qsticky, sticky ? Qt : Qnil);
  store_frame_param (f, Qshaded, shaded ? Qt : Qnil);

  return not_hidden;
}

/* Check if we need to resize the frame due to a fullscreen request.
   If so needed, resize the frame. */
static void
x_check_fullscreen (struct frame *f)
{
  Lisp_Object lval = Qnil;

  if (do_ewmh_fullscreen (f))
    return;

  if (f->output_data.x->parent_desc != FRAME_DISPLAY_INFO (f)->root_window)
    return; /* Only fullscreen without WM or with EWM hints (above). */

  /* Setting fullscreen to nil doesn't do anything.  We could save the
     last non-fullscreen size and restore it, but it seems like a
     lot of work for this unusual case (no window manager running).  */

  if (f->want_fullscreen != FULLSCREEN_NONE)
    {
      int width = FRAME_PIXEL_WIDTH (f), height = FRAME_PIXEL_HEIGHT (f);
      struct x_display_info *dpyinfo = FRAME_DISPLAY_INFO (f);

      switch (f->want_fullscreen)
        {
          /* No difference between these two when there is no WM */
        case FULLSCREEN_MAXIMIZED:
          lval = Qmaximized;
          width = x_display_pixel_width (dpyinfo);
          height = x_display_pixel_height (dpyinfo);
          break;
        case FULLSCREEN_BOTH:
          lval = Qfullboth;
          width = x_display_pixel_width (dpyinfo);
          height = x_display_pixel_height (dpyinfo);
          break;
        case FULLSCREEN_WIDTH:
          lval = Qfullwidth;
          width = x_display_pixel_width (dpyinfo);
	  height = height + FRAME_MENUBAR_HEIGHT (f);
	  break;
        case FULLSCREEN_HEIGHT:
          lval = Qfullheight;
          height = x_display_pixel_height (dpyinfo);
	  break;
	default:
	  emacs_abort ();
        }

      x_wm_set_size_hint (f, 0, false);

      XResizeWindow (FRAME_X_DISPLAY (f), FRAME_OUTER_WINDOW (f),
		     width, height);

      if (FRAME_VISIBLE_P (f))
	x_wait_for_event (f, ConfigureNotify);
      else
	change_frame_size (f, width, height, false, true, false);
    }

  /* `x_net_wm_state' might have reset the fullscreen frame parameter,
     restore it. */
  store_frame_param (f, Qfullscreen, lval);
}

/* This function is called by x_set_offset to determine whether the window
   manager interfered with the positioning of the frame.  Type A window
   managers position the surrounding window manager decorations a small
   amount above and left of the user-supplied position.  Type B window
   managers position the surrounding window manager decorations at the
   user-specified position.  If we detect a Type A window manager, we
   compensate by moving the window right and down by the proper amount.  */

static void
x_check_expected_move (struct frame *f, int expected_left, int expected_top)
{
  int current_left = 0, current_top = 0;

  /* x_real_positions returns the left and top offsets of the outermost
     window manager window around the frame.  */

  x_real_positions (f, &current_left, &current_top);

  if (current_left != expected_left || current_top != expected_top)
    {
      /* It's a "Type A" window manager. */

      int adjusted_left;
      int adjusted_top;

      FRAME_DISPLAY_INFO (f)->wm_type = X_WMTYPE_A;
      FRAME_X_OUTPUT (f)->move_offset_left = expected_left - current_left;
      FRAME_X_OUTPUT (f)->move_offset_top = expected_top - current_top;

      /* Now fix the mispositioned frame's location. */

      adjusted_left = expected_left + FRAME_X_OUTPUT (f)->move_offset_left;
      adjusted_top = expected_top + FRAME_X_OUTPUT (f)->move_offset_top;

      XMoveWindow (FRAME_X_DISPLAY (f), FRAME_OUTER_WINDOW (f),
                   adjusted_left, adjusted_top);

      x_sync_with_move (f, expected_left, expected_top, false);
    }
  else
    /* It's a "Type B" window manager.  We don't have to adjust the
       frame's position. */
      FRAME_DISPLAY_INFO (f)->wm_type = X_WMTYPE_B;
}


/* Wait for XGetGeometry to return up-to-date position information for a
   recently-moved frame.  Call this immediately after calling XMoveWindow.
   If FUZZY is non-zero, then LEFT and TOP are just estimates of where the
   frame has been moved to, so we use a fuzzy position comparison instead
   of an exact comparison.  */

static void
x_sync_with_move (struct frame *f, int left, int top, bool fuzzy)
{
  sigset_t emptyset;
  int count, current_left, current_top;
  struct timespec fallback;

  sigemptyset (&emptyset);
  count = 0;

  while (count++ < 50)
    {
      current_left = 0;
      current_top = 0;

      /* There is no need to call XSync (even when no window manager
	 is present) because x_real_positions already does that
	 implicitly.  */
      x_real_positions (f, &current_left, &current_top);

      if (fuzzy)
        {
          /* The left fuzz-factor is 10 pixels.  The top fuzz-factor is 40
             pixels.  */

          if (eabs (current_left - left) <= 10
	      && eabs (current_top - top) <= 40)
            return;
	}
      else if (current_left == left && current_top == top)
        return;
    }

  /* As a last resort, just wait 0.5 seconds and hope that XGetGeometry
     will then return up-to-date position info. */

  fallback = dtotimespec (0.5);

  /* This will hang if input is blocked, so use pselect to wait
     instead.  */
  if (input_blocked_p ())
    pselect (0, NULL, NULL, NULL, &fallback, &emptyset);
  else
    wait_reading_process_output (0, 500000000, 0, false, Qnil, NULL, 0);
}

/* Wait for an event on frame F matching EVENTTYPE.  */
void
x_wait_for_event (struct frame *f, int eventtype)
{
  if (!FLOATP (Vx_wait_for_event_timeout))
    return;

  int level = interrupt_input_blocked;
  fd_set fds;
  struct timespec tmo, tmo_at, time_now;
  int fd = ConnectionNumber (FRAME_X_DISPLAY (f));

  f->wait_event_type = eventtype;

  /* Default timeout is 0.1 second.  Hopefully not noticeable.  */
  double timeout = XFLOAT_DATA (Vx_wait_for_event_timeout);
  time_t timeout_seconds = (time_t) timeout;
  tmo = make_timespec
    (timeout_seconds, (long int) ((timeout - timeout_seconds)
                                  * 1000 * 1000 * 1000));
  tmo_at = timespec_add (current_timespec (), tmo);

  while (f->wait_event_type)
    {
      pending_signals = true;
      totally_unblock_input ();
      /* XTread_socket is called after unblock.  */
      block_input ();
      interrupt_input_blocked = level;

      FD_ZERO (&fds);
      FD_SET (fd, &fds);

      time_now = current_timespec ();
      if (timespec_cmp (tmo_at, time_now) < 0)
	break;

      tmo = timespec_sub (tmo_at, time_now);
      if (pselect (fd + 1, &fds, NULL, NULL, &tmo, NULL) == 0)
        break; /* Timeout */
    }

  f->wait_event_type = 0;
}


/* Change the size of frame F's X window to WIDTH/HEIGHT in the case F
   doesn't have a widget.  If CHANGE_GRAVITY, change to
   top-left-corner window gravity for this size change and subsequent
   size changes.  Otherwise leave the window gravity unchanged.  */

static void
x_set_window_size_1 (struct frame *f, bool change_gravity,
		     int width, int height)
{
  if (change_gravity)
    f->win_gravity = NorthWestGravity;
  x_wm_set_size_hint (f, 0, false);

  XResizeWindow (FRAME_X_DISPLAY (f), FRAME_OUTER_WINDOW (f),
		 width, height + FRAME_MENUBAR_HEIGHT (f));

  /* We've set {FRAME,PIXEL}_{WIDTH,HEIGHT} to the values we hope to
     receive in the ConfigureNotify event; if we get what we asked
     for, then the event won't cause the screen to become garbaged, so
     we have to make sure to do it here.  */
  SET_FRAME_GARBAGED (f);

  /* The following code is too slow over a latent network
     connection, so skip it when the user says so.  */

  if (!NILP (Vx_lax_frame_positioning))
    return;

  /* Now, strictly speaking, we can't be sure that this is accurate,
     but the window manager will get around to dealing with the size
     change request eventually, and we'll hear how it went when the
     ConfigureNotify event gets here.

     We could just not bother storing any of this information here,
     and let the ConfigureNotify event set everything up, but that
     might be kind of confusing to the Lisp code, since size changes
     wouldn't be reported in the frame parameters until some random
     point in the future when the ConfigureNotify event arrives.

     Pass true for DELAY since we can't run Lisp code inside of
     a BLOCK_INPUT.  */

  /* But the ConfigureNotify may in fact never arrive, and then this is
     not right if the frame is visible.  Instead wait (with timeout)
     for the ConfigureNotify.  */
  if (FRAME_VISIBLE_P (f))
    {
      x_wait_for_event (f, ConfigureNotify);

      if (CONSP (frame_size_history))
	frame_size_history_extra
	  (f, build_string ("x_set_window_size_1, visible"),
	   FRAME_PIXEL_WIDTH (f), FRAME_PIXEL_HEIGHT (f), width, height,
	   f->new_width, f->new_height);
    }
  else
    {
      if (CONSP (frame_size_history))
	frame_size_history_extra
	  (f, build_string ("x_set_window_size_1, invisible"),
	   FRAME_PIXEL_WIDTH (f), FRAME_PIXEL_HEIGHT (f), width, height,
	   f->new_width, f->new_height);

      /* Call adjust_frame_size right away as with GTK.  It might be
	 tempting to clear out f->new_width and f->new_height here.  */
      adjust_frame_size (f, FRAME_PIXEL_TO_TEXT_WIDTH (f, width),
			 FRAME_PIXEL_TO_TEXT_HEIGHT (f, height),
			 5, 0, Qx_set_window_size_1);
    }
}


/* Change the size of frame F's X window to WIDTH and HEIGHT pixels.  If
   CHANGE_GRAVITY, change to top-left-corner window gravity for this
   size change and subsequent size changes.  Otherwise we leave the
   window gravity unchanged.  */

void
x_set_window_size (struct frame *f, bool change_gravity,
		   int width, int height)
{
  block_input ();

#ifdef USE_GTK
  if (FRAME_GTK_WIDGET (f))
    xg_frame_set_char_size (f, width, height);
  else
    x_set_window_size_1 (f, change_gravity, width, height);
#else /* not USE_GTK */
  x_set_window_size_1 (f, change_gravity, width, height);
  x_clear_under_internal_border (f);
#endif /* not USE_GTK */

  /* If cursor was outside the new size, mark it as off.  */
  mark_window_cursors_off (XWINDOW (f->root_window));

  /* Clear out any recollection of where the mouse highlighting was,
     since it might be in a place that's outside the new frame size.
     Actually checking whether it is outside is a pain in the neck,
     so don't try--just let the highlighting be done afresh with new size.  */
  cancel_mouse_face (f);

  unblock_input ();

  do_pending_window_change (false);
}

/* Move the mouse to position pixel PIX_X, PIX_Y relative to frame F.  */

void
frame_set_mouse_pixel_position (struct frame *f, int pix_x, int pix_y)
{
#ifdef HAVE_XINPUT2
  int deviceid;

  deviceid = FRAME_DISPLAY_INFO (f)->client_pointer_device;

  if (FRAME_DISPLAY_INFO (f)->supports_xi2
      && deviceid != -1)
    {
      block_input ();
      x_ignore_errors_for_next_request (FRAME_DISPLAY_INFO (f), 0);
      XIWarpPointer (FRAME_X_DISPLAY (f), deviceid, None,
		     FRAME_X_WINDOW (f), 0, 0, 0, 0, pix_x, pix_y);
      x_stop_ignoring_errors (FRAME_DISPLAY_INFO (f));
      unblock_input ();
    }
  else
#endif
    XWarpPointer (FRAME_X_DISPLAY (f), None, FRAME_X_WINDOW (f),
		  0, 0, 0, 0, pix_x, pix_y);
}
\f
/* Raise frame F.  */

static void
x_raise_frame (struct frame *f)
{
  block_input ();

  if (FRAME_VISIBLE_P (f))
    {
      XRaiseWindow (FRAME_X_DISPLAY (f),
		    FRAME_OUTER_WINDOW (f));
      XFlush (FRAME_X_DISPLAY (f));
    }

  unblock_input ();
}

static void
x_lower_frame_1 (struct frame *f)
{
  Window *windows;
  Lisp_Object frame, tail;
  struct frame *sibling;

  windows = alloca (2 * sizeof *windows);

  /* Lowering a child frame leads to the window being put below any
     scroll bars on the parent.  To avoid that, restack the child
     frame below all of its siblings instead of just lowering it.  */

  FOR_EACH_FRAME (tail, frame)
    {
      sibling = XFRAME (frame);

      if (sibling == f)
	continue;

      if (FRAME_PARENT_FRAME (sibling)
	  != FRAME_PARENT_FRAME (f))
	continue;

      windows[0] = FRAME_OUTER_WINDOW (sibling);
      windows[1] = FRAME_OUTER_WINDOW (f);

      XRestackWindows (FRAME_X_DISPLAY (f), windows, 2);
    }
}

/* Lower frame F.  */

static void
x_lower_frame (struct frame *f)
{
  if (FRAME_PARENT_FRAME (f)
      && (FRAME_HAS_VERTICAL_SCROLL_BARS (FRAME_PARENT_FRAME (f))
	  || FRAME_HAS_HORIZONTAL_SCROLL_BARS (FRAME_PARENT_FRAME (f))))
    x_lower_frame_1 (f);
  else
    XLowerWindow (FRAME_X_DISPLAY (f),
		  FRAME_OUTER_WINDOW (f));

#ifdef HAVE_XWIDGETS
  /* Make sure any X windows owned by xwidget views of the parent
     still display below the lowered frame.  */

  if (FRAME_PARENT_FRAME (f))
    lower_frame_xwidget_views (FRAME_PARENT_FRAME (f));
#endif

  XFlush (FRAME_X_DISPLAY (f));
}

static void
XTframe_raise_lower (struct frame *f, bool raise_flag)
{
  if (raise_flag)
    x_raise_frame (f);
  else
    x_lower_frame (f);
}

/* Request focus with XEmbed */

static void
xembed_request_focus (struct frame *f)
{
  /* See XEmbed Protocol Specification at
     https://freedesktop.org/wiki/Specifications/xembed-spec/  */
  if (FRAME_VISIBLE_P (f))
    xembed_send_message (f, CurrentTime,
			 XEMBED_REQUEST_FOCUS, 0, 0, 0);
}

static Bool
server_timestamp_predicate (Display *display, XEvent *xevent,
			    XPointer arg)
{
  XID *args = (XID *) arg;

  if (xevent->type == PropertyNotify
      && xevent->xproperty.window == args[0]
      && xevent->xproperty.atom == args[1])
    return True;

  return False;
}

/* Get the server time.  The X server is guaranteed to deliver the
   PropertyNotify event, so there is no reason to use x_if_event.  */

static Time
x_get_server_time (struct frame *f)
{
  Atom property_atom;
  XEvent property_dummy;
  struct x_display_info *dpyinfo;
  XID client_data[2];
#if defined HAVE_XSYNC && !defined USE_GTK && defined HAVE_CLOCK_GETTIME
  uint_fast64_t current_monotonic_time;
#endif

  /* If the server time is the same as the monotonic time, avoid a
     roundtrip by using that instead.  */

#if defined HAVE_XSYNC && !defined USE_GTK && defined HAVE_CLOCK_GETTIME
  if (FRAME_DISPLAY_INFO (f)->server_time_monotonic_p)
    {
      current_monotonic_time = x_sync_current_monotonic_time ();

      if (current_monotonic_time)
	/* Truncate the time to CARD32.  */
	return (current_monotonic_time / 1000) & X_ULONG_MAX;
    }
#endif

  dpyinfo = FRAME_DISPLAY_INFO (f);
  property_atom = dpyinfo->Xatom_EMACS_SERVER_TIME_PROP;
  client_data[0] = FRAME_OUTER_WINDOW (f);
  client_data[1] = property_atom;

  XChangeProperty (dpyinfo->display, FRAME_OUTER_WINDOW (f),
		   property_atom, XA_ATOM, 32,
		   PropModeReplace,
		   (unsigned char *) &property_atom, 1);

  XIfEvent (dpyinfo->display, &property_dummy,
	    server_timestamp_predicate, (XPointer) client_data);

  return property_dummy.xproperty.time;
}

/* Activate frame with Extended Window Manager Hints */

static void
x_ewmh_activate_frame (struct frame *f)
{
  XEvent msg;
  struct x_display_info *dpyinfo;
  Time time;

  dpyinfo = FRAME_DISPLAY_INFO (f);

  if (FRAME_VISIBLE_P (f))
    {
      /* See the documentation at
	 https://specifications.freedesktop.org/wm-spec/wm-spec-latest.html
	 for more details on the format of this message.  */
      msg.xclient.type = ClientMessage;
      msg.xclient.window = FRAME_OUTER_WINDOW (f);
      msg.xclient.message_type = dpyinfo->Xatom_net_active_window;
      msg.xclient.format = 32;
      msg.xclient.data.l[0] = 1;
      msg.xclient.data.l[1] = dpyinfo->last_user_time;
      msg.xclient.data.l[2] = (!dpyinfo->x_focus_frame
			       ? None
			       : FRAME_OUTER_WINDOW (dpyinfo->x_focus_frame));
      msg.xclient.data.l[3] = 0;
      msg.xclient.data.l[4] = 0;

      /* No frame is currently focused on that display, so apply any
	 bypass for focus stealing prevention that the user has
	 specified.  */
      if (!dpyinfo->x_focus_frame)
	{
	  if (EQ (Vx_allow_focus_stealing, Qimitate_pager))
	    msg.xclient.data.l[0] = 2;
	  else if (EQ (Vx_allow_focus_stealing, Qnewer_time))
	    {
	      block_input ();
	      time = x_get_server_time (f);
#ifdef USE_GTK
	      x_set_gtk_user_time (f, time);
#endif
	      /* Temporarily override dpyinfo->x_focus_frame so the
		 user time property is set on the right window.  */
	      dpyinfo->x_focus_frame = f;
	      x_display_set_last_user_time (dpyinfo, time, true, true);
	      dpyinfo->x_focus_frame = NULL;
	      unblock_input ();

	      msg.xclient.data.l[1] = time;
	    }
	  else if (EQ (Vx_allow_focus_stealing, Qraise_and_focus))
	    {
	      time = x_get_server_time (f);

	      x_set_input_focus (FRAME_DISPLAY_INFO (f),
				 FRAME_OUTER_WINDOW (f),
				 time);
	      XRaiseWindow (FRAME_X_DISPLAY (f), FRAME_OUTER_WINDOW (f));

	      return;
	    }
	}

      XSendEvent (dpyinfo->display, dpyinfo->root_window,
		  False, (SubstructureRedirectMask
			  | SubstructureNotifyMask), &msg);
    }
}

static Lisp_Object
x_get_focus_frame (struct frame *f)
{
  Lisp_Object lisp_focus;

  struct frame *focus =  FRAME_DISPLAY_INFO (f)->x_focus_frame;

  if (!focus)
    return Qnil;

  XSETFRAME (lisp_focus, focus);
  return lisp_focus;
}

/* Return the toplevel parent of F, if it is a child frame.
   Otherwise, return NULL.  */

static struct frame *
x_get_toplevel_parent (struct frame *f)
{
  struct frame *parent;

  if (!FRAME_PARENT_FRAME (f))
    return NULL;

  parent = FRAME_PARENT_FRAME (f);

  while (FRAME_PARENT_FRAME (parent))
    parent = FRAME_PARENT_FRAME (parent);

  return parent;
}

static void
x_set_input_focus (struct x_display_info *dpyinfo, Window window,
		   Time time)
{
#ifdef HAVE_XINPUT2
  struct xi_device_t *device;
#endif

  /* Do the equivalent of XSetInputFocus with the specified window and
     time, but use the attachment to the device that Emacs has
     designated the client pointer on X Input Extension builds.
     Asynchronously trap errors around the generated XI_SetFocus or
     SetInputFocus request, in case the device has been destroyed or
     the window obscured.

     The revert_to will be set to RevertToParent for generated
     SetInputFocus requests.  */

#ifdef HAVE_XINPUT2
  if (dpyinfo->supports_xi2
      && dpyinfo->client_pointer_device != -1)
    {
      device = xi_device_from_id (dpyinfo, dpyinfo->client_pointer_device);

      /* The device is a master pointer.  Use its attachment, which
	 should be the master keyboard.  */

      if (device)
	{
	  eassert (device->use == XIMasterPointer);

	  x_ignore_errors_for_next_request (dpyinfo, 0);
	  XISetFocus (dpyinfo->display, device->attachment,
		      /* Note that the input extension
			 only supports RevertToParent-type
			 behavior.  */
		      window, time);
	  x_stop_ignoring_errors (dpyinfo);

	  return;
	}
    }
#endif

  /* Otherwise, use the pointer device that the X server says is the
     client pointer.  */
  x_ignore_errors_for_next_request (dpyinfo, 0);
  XSetInputFocus (dpyinfo->display, window, RevertToParent, time);
  x_stop_ignoring_errors (dpyinfo);
}

/* In certain situations, when the window manager follows a
   click-to-focus policy, there seems to be no way around calling
   XSetInputFocus to give another frame the input focus.

   In an ideal world, XSetInputFocus should generally be avoided so
   that applications don't interfere with the window manager's focus
   policy.  But I think it's okay to use when it's clearly done
   following a user-command.  */

static void
x_focus_frame (struct frame *f, bool noactivate)
{
  struct x_display_info *dpyinfo;
  Time time;

  dpyinfo = FRAME_DISPLAY_INFO (f);

  if (dpyinfo->untrusted)
    /* The X server ignores all input focus related requests from
       untrusted clients.  */
    return;

  /* The code below is not reentrant wrt to dpyinfo->x_focus_frame and
     friends being set.  */
  block_input ();

#ifdef HAVE_GTK3
  /* read_minibuf assumes that calling Fx_focus_frame on a frame that
     is already selected won't move the focus elsewhere, and thereby
     disrupt any focus redirection to e.g. a minibuffer frame that
     might be activated between that call being made and the
     consequent XI_FocusIn/Out events arriving.  This is true whether
     the focus is ultimately transferred back to the frame it was
     initially on or not.

     GTK 3 moves the keyboard focus to the edit widget's window
     whenever it receives a FocusIn event targeting the outer window.
     This operation gives rise to a FocusOut event that clears
     device->focus_frame, which in turn prompts xi_handle_focus_change
     to clear the display's focus frame.  The next FocusIn event
     destined for the same frame registers as a new focus, which
     cancels any focus redirection from that frame.

     To prevent this chain of events from disrupting focus redirection
     when the minibuffer is activated twice in rapid succession while
     configured to redirect focus to a minibuffer frame, ignore frames
     which hold the input focus and are connected to a minibuffer
     window.  (bug#65116)*/

  if (f == dpyinfo->x_focus_frame && !FRAME_HAS_MINIBUF_P (f))
    {
      unblock_input ();
      return;
    }
#endif /* HAVE_GTK3 */

  if (FRAME_X_EMBEDDED_P (f))
    /* For Xembedded frames, normally the embedder forwards key
       events.  See XEmbed Protocol Specification at
       https://freedesktop.org/wiki/Specifications/xembed-spec/  */
    xembed_request_focus (f);
  else
    {
      if (!noactivate
	  /* If F is override-redirect, use SetInputFocus instead.
	     Override-redirect frames are not subject to window
	     management.  */
	  && !FRAME_OVERRIDE_REDIRECT (f)
	  /* If F is a child frame, use SetInputFocus instead.  This
	     may not work if its parent is not activated.  */
	  && !FRAME_PARENT_FRAME (f)
	  /* If the focus is being transferred from a child frame to
	     its toplevel parent, also use SetInputFocus.  */
	  && (!dpyinfo->x_focus_frame
	      || (x_get_toplevel_parent (dpyinfo->x_focus_frame)
		  != f))
	  && x_wm_supports (f, dpyinfo->Xatom_net_active_window))
	{
	  /* When window manager activation is possible, use it
	     instead.  The window manager is expected to perform any
	     necessary actions such as raising the frame, moving it to
	     the current workspace, and mapping it, etc, before moving
	     input focus to the frame.  */
	  x_ewmh_activate_frame (f);
	  goto out;
	}

      if (NILP (Vx_no_window_manager))
	{
	  /* Use the last user time.  It is invalid to use CurrentTime
	     according to the ICCCM:

	       Clients that use a SetInputFocus request must set the
	       time field to the timestamp of the event that caused
	       them to make the attempt. [...] Note that clients must
	       not use CurrentTime in the time field.  */
	  time = dpyinfo->last_user_time;

	  /* Unless the focus doesn't belong to Emacs anymore and
	     `x-allow-focus-stealing' is set to Qnewer_time.  */
	  if (EQ (Vx_allow_focus_stealing, Qnewer_time)
	      && !dpyinfo->x_focus_frame)
	    time = x_get_server_time (f);

	  /* Ignore any BadMatch error this request might result in.
	     A BadMatch error can occur if the window was obscured
	     after the time of the last user interaction without
	     changing the last-focus-change-time.  */
	  x_set_input_focus (FRAME_DISPLAY_INFO (f), FRAME_OUTER_WINDOW (f),
			     time);
	}
      else
	x_set_input_focus (FRAME_DISPLAY_INFO (f), FRAME_OUTER_WINDOW (f),
			   /* But when no window manager is in use,
			      respecting the ICCCM doesn't really
			      matter.  */
			   CurrentTime);
    }

 out:
  unblock_input ();
}

\f
/* XEmbed implementation.  */

#if defined USE_X_TOOLKIT || ! defined USE_GTK

/* XEmbed implementation.  */

#define XEMBED_VERSION 0

static void
xembed_set_info (struct frame *f, enum xembed_info flags)
{
  unsigned long data[2];
  struct x_display_info *dpyinfo = FRAME_DISPLAY_INFO (f);

  data[0] = XEMBED_VERSION;
  data[1] = flags;

  XChangeProperty (FRAME_X_DISPLAY (f), FRAME_OUTER_WINDOW (f),
                   dpyinfo->Xatom_XEMBED_INFO, dpyinfo->Xatom_XEMBED_INFO,
		   32, PropModeReplace, (unsigned char *) data, 2);
}
#endif /* defined USE_X_TOOLKIT || ! defined USE_GTK */

static void
xembed_send_message (struct frame *f, Time t, enum xembed_message msg,
		     long int detail, long int data1, long int data2)
{
  XEvent event;

  event.xclient.type = ClientMessage;
  event.xclient.window = FRAME_X_OUTPUT (f)->parent_desc;
  event.xclient.message_type = FRAME_DISPLAY_INFO (f)->Xatom_XEMBED;
  event.xclient.format = 32;
  event.xclient.data.l[0] = t;
  event.xclient.data.l[1] = msg;
  event.xclient.data.l[2] = detail;
  event.xclient.data.l[3] = data1;
  event.xclient.data.l[4] = data2;

  /* XXX: the XEmbed spec tells us to trap errors around this request,
     but I don't understand why: there is no way for clients to
     survive the death of the parent anyway.  */

  x_ignore_errors_for_next_request (FRAME_DISPLAY_INFO (f), 0);
  XSendEvent (FRAME_X_DISPLAY (f), FRAME_X_OUTPUT (f)->parent_desc,
	      False, NoEventMask, &event);
  x_stop_ignoring_errors (FRAME_DISPLAY_INFO (f));
}
\f
/* Change of visibility.  */

/* This tries to wait until the frame is really visible, depending on
   the value of Vx_wait_for_event_timeout.
   However, if the window manager asks the user where to position
   the frame, this will return before the user finishes doing that.
   The frame will not actually be visible at that time,
   but it will become visible later when the window manager
   finishes with it.  */

void
x_make_frame_visible (struct frame *f)
{
#ifndef USE_GTK
  struct x_display_info *dpyinfo;
  struct x_output *output;
#endif
  bool output_flushed;

  if (FRAME_PARENT_FRAME (f))
    {
      if (!FRAME_VISIBLE_P (f))
	{
	  block_input ();
#ifdef USE_GTK
	  gtk_widget_show_all (FRAME_GTK_OUTER_WIDGET (f));
	  XMoveWindow (FRAME_X_DISPLAY (f), FRAME_OUTER_WINDOW (f),
		       f->left_pos, f->top_pos);
#else
	  XMapRaised (FRAME_X_DISPLAY (f), FRAME_OUTER_WINDOW (f));
#endif
	  unblock_input ();

	  SET_FRAME_VISIBLE (f, true);
	  SET_FRAME_ICONIFIED (f, false);
	}
      return;
    }

  block_input ();

  gui_set_bitmap_icon (f);

#ifndef USE_GTK
  dpyinfo = FRAME_DISPLAY_INFO (f);
#endif

  if (! FRAME_VISIBLE_P (f))
    {
      /* We test asked_for_visible here to make sure we don't
         call x_set_offset a second time
         if we get to x_make_frame_visible a second time
	 before the window gets really visible.  */
      if (! FRAME_ICONIFIED_P (f)
	  && ! FRAME_X_EMBEDDED_P (f)
	  && ! f->output_data.x->asked_for_visible)
	x_set_offset (f, f->left_pos, f->top_pos, 0);

#ifndef USE_GTK
      output = FRAME_X_OUTPUT (f);
      x_update_frame_user_time_window (f);

      /* It's been a while since I wrote that code...  I don't
	 remember if it can leave `user_time_window' unset or not.  */
      if (output->user_time_window != None)
	{
	  if (dpyinfo->last_user_time)
	    XChangeProperty (dpyinfo->display, output->user_time_window,
			     dpyinfo->Xatom_net_wm_user_time,
			     XA_CARDINAL, 32, PropModeReplace,
			     (unsigned char *) &dpyinfo->last_user_time, 1);
	  else
	    XDeleteProperty (dpyinfo->display, output->user_time_window,
			     dpyinfo->Xatom_net_wm_user_time);
	}
#endif

      f->output_data.x->asked_for_visible = true;

      if (! EQ (Vx_no_window_manager, Qt))
	x_wm_set_window_state (f, NormalState);
#ifdef USE_X_TOOLKIT
      if (FRAME_X_EMBEDDED_P (f))
	xembed_set_info (f, XEMBED_MAPPED);
      else
	{
	  /* This was XtPopup, but that did nothing for an iconified frame.  */
	  XtMapWidget (f->output_data.x->widget);
	}
#else /* not USE_X_TOOLKIT */
#ifdef USE_GTK
      gtk_widget_show_all (FRAME_GTK_OUTER_WIDGET (f));
      gtk_window_deiconify (GTK_WINDOW (FRAME_GTK_OUTER_WIDGET (f)));
#else
      if (FRAME_X_EMBEDDED_P (f))
	xembed_set_info (f, XEMBED_MAPPED);
      else
	XMapRaised (FRAME_X_DISPLAY (f), FRAME_X_WINDOW (f));
#endif /* not USE_GTK */
#endif /* not USE_X_TOOLKIT */

      if (FRAME_X_EMBEDDED_P (f))
	{
	  SET_FRAME_VISIBLE (f, true);
	  SET_FRAME_ICONIFIED (f, false);
	}
    }

  /* Synchronize to ensure Emacs knows the frame is visible
     before we do anything else.  We do this loop with input not blocked
     so that incoming events are handled.  */
  {
    Lisp_Object frame;
    /* This must be before UNBLOCK_INPUT
       since events that arrive in response to the actions above
       will set it when they are handled.  */
    bool previously_visible = f->output_data.x->has_been_visible;

    XSETFRAME (frame, f);

    int original_left = f->left_pos;
    int original_top = f->top_pos;

    /* This must come after we set COUNT.  */
    unblock_input ();

    /* Keep track of whether or not the output buffer was flushed, to
       avoid any extra flushes.  */
    output_flushed = false;

    /* We unblock here so that arriving X events are processed.  */

    /* Now move the window back to where it was "supposed to be".
       But don't do it if the gravity is negative.
       When the gravity is negative, this uses a position
       that is 3 pixels too low.  Perhaps that's really the border width.

       Don't do this if the window has never been visible before,
       because the window manager may choose the position
       and we don't want to override it.  */

    if (!FRAME_VISIBLE_P (f)
	&& !FRAME_ICONIFIED_P (f)
	&& !FRAME_X_EMBEDDED_P (f)
	&& !FRAME_PARENT_FRAME (f)
	&& NILP (Vx_lax_frame_positioning)
	&& f->win_gravity == NorthWestGravity
	&& previously_visible)
      {
	Drawable rootw;
	int x, y;
	unsigned int width, height, border, depth;

	block_input ();

	/* On some window managers (such as FVWM) moving an existing
	   window, even to the same place, causes the window manager
	   to introduce an offset.  This can cause the window to move
	   to an unexpected location.  Check the geometry (a little
	   slow here) and then verify that the window is in the right
	   place.  If the window is not in the right place, move it
	   there, and take the potential window manager hit.  */
	XGetGeometry (FRAME_X_DISPLAY (f), FRAME_OUTER_WINDOW (f),
		      &rootw, &x, &y, &width, &height, &border, &depth);
	output_flushed = true;

	if (original_left != x || original_top != y)
	  XMoveWindow (FRAME_X_DISPLAY (f), FRAME_OUTER_WINDOW (f),
		       original_left, original_top);

	unblock_input ();
      }

    /* Try to wait for a MapNotify event (that is what tells us when a
       frame becomes visible).  Unless `x-lax-frame-positioning' is
       non-nil: there, that is a little slow.  */

#ifdef CYGWIN
    /* On Cygwin, which uses input polling, we need to force input to
       be read.  See
       https://lists.gnu.org/r/emacs-devel/2013-12/msg00351.html
       and https://debbugs.gnu.org/cgi/bugreport.cgi?bug=24091#131.
       Fake an alarm signal to let the handler know that there's
       something to be read.

       It could be confusing if a real alarm arrives while processing
       the fake one.  Turn it off and let the handler reset it.  */
    int old_poll_suppress_count = poll_suppress_count;
    poll_suppress_count = 1;
    poll_for_input_1 ();
    poll_suppress_count = old_poll_suppress_count;
#endif

    if (!FRAME_VISIBLE_P (f)
	&& NILP (Vx_lax_frame_positioning))
      {
	if (CONSP (frame_size_history))
	  frame_size_history_plain
	    (f, build_string ("x_make_frame_visible"));

	x_wait_for_event (f, MapNotify);
	output_flushed = true;
      }

    if (!output_flushed)
      x_flush (f);
  }
}

/* Change from mapped state to withdrawn state.  */

/* Make the frame visible (mapped and not iconified).  */

void
x_make_frame_invisible (struct frame *f)
{
  Window window;

  /* Use the frame's outermost window, not the one we normally draw on.  */
  window = FRAME_OUTER_WINDOW (f);

  /* Don't keep the highlight on an invisible frame.  */
  if (FRAME_DISPLAY_INFO (f)->highlight_frame == f)
    FRAME_DISPLAY_INFO (f)->highlight_frame = 0;

  block_input ();

#ifdef HAVE_XINPUT2_2
  /* Remove any touch points associated with F.  */
  xi_unlink_touch_points (f);
#endif

  /* Before unmapping the window, update the WM_SIZE_HINTS property to claim
     that the current position of the window is user-specified, rather than
     program-specified, so that when the window is mapped again, it will be
     placed at the same location, without forcing the user to position it
     by hand again (they have already done that once for this window.)  */
  x_wm_set_size_hint (f, 0, true);

#ifdef USE_GTK
  if (FRAME_GTK_OUTER_WIDGET (f))
    gtk_widget_hide (FRAME_GTK_OUTER_WIDGET (f));
  else
#else
  if (FRAME_X_EMBEDDED_P (f))
    xembed_set_info (f, 0);
  else
#endif

    if (! XWithdrawWindow (FRAME_X_DISPLAY (f), window,
			   DefaultScreen (FRAME_X_DISPLAY (f))))
      {
	unblock_input ();
	error ("Can't notify window manager of window withdrawal");
      }

  /* Don't perform the synchronization if the network connection is
     slow, and the user says it is unwanted.  */
  if (NILP (Vx_lax_frame_positioning))
    XSync (FRAME_X_DISPLAY (f), False);

  /* We can't distinguish this from iconification
     just by the event that we get from the server.
     So we can't win using the usual strategy of letting
     FRAME_SAMPLE_VISIBILITY set this.  So do it by hand,
     and synchronize with the server to make sure we agree.  */
  SET_FRAME_VISIBLE (f, 0);
  SET_FRAME_ICONIFIED (f, false);

  if (CONSP (frame_size_history))
    frame_size_history_plain (f, build_string ("x_make_frame_invisible"));

  unblock_input ();
}

static void
x_make_frame_visible_invisible (struct frame *f, bool visible)
{
  if (visible)
    x_make_frame_visible (f);
  else
    x_make_frame_invisible (f);
}

Cursor
x_create_font_cursor (struct x_display_info *dpyinfo, int glyph)
{
  if (glyph <= 65535)
    return XCreateFontCursor (dpyinfo->display, glyph);

  /* x-pointer-invisible cannot fit in CARD16, and thus cannot be any
     existing cursor.  */
  return make_invisible_cursor (dpyinfo);
}


/* Change window state from mapped to iconified.  */

void
x_iconify_frame (struct frame *f)
{
#ifdef USE_X_TOOLKIT
  int result;
#endif

  /* Don't keep the highlight on an invisible frame.  */
  if (FRAME_DISPLAY_INFO (f)->highlight_frame == f)
    FRAME_DISPLAY_INFO (f)->highlight_frame = 0;

  if (FRAME_ICONIFIED_P (f))
    return;

  block_input ();

  gui_set_bitmap_icon (f);

#if defined (USE_GTK)
  if (FRAME_GTK_OUTER_WIDGET (f))
    {
      if (! FRAME_VISIBLE_P (f))
        gtk_widget_show_all (FRAME_GTK_OUTER_WIDGET (f));

      gtk_window_iconify (GTK_WINDOW (FRAME_GTK_OUTER_WIDGET (f)));
      SET_FRAME_VISIBLE (f, 0);
      SET_FRAME_ICONIFIED (f, true);
      unblock_input ();
      return;
    }
#endif

#ifdef USE_X_TOOLKIT

  if (! FRAME_VISIBLE_P (f))
    {
      if (! EQ (Vx_no_window_manager, Qt))
	x_wm_set_window_state (f, IconicState);
      /* This was XtPopup, but that did nothing for an iconified frame.  */
      XtMapWidget (f->output_data.x->widget);
      /* The server won't give us any event to indicate
	 that an invisible frame was changed to an icon,
	 so we have to record it here.  */
      SET_FRAME_VISIBLE (f, 0);
      SET_FRAME_ICONIFIED (f, true);
      unblock_input ();
      return;
    }

  result = XIconifyWindow (FRAME_X_DISPLAY (f),
			   XtWindow (f->output_data.x->widget),
			   DefaultScreen (FRAME_X_DISPLAY (f)));
  unblock_input ();

  if (!result)
    error ("Can't notify window manager of iconification");

  SET_FRAME_ICONIFIED (f, true);
  SET_FRAME_VISIBLE (f, 0);

  block_input ();
  XFlush (FRAME_X_DISPLAY (f));
  unblock_input ();
#else /* not USE_X_TOOLKIT */

  /* Make sure the X server knows where the window should be positioned,
     in case the user deiconifies with the window manager.  */
  if (! FRAME_VISIBLE_P (f)
      && ! FRAME_ICONIFIED_P (f)
      && ! FRAME_X_EMBEDDED_P (f))
    x_set_offset (f, f->left_pos, f->top_pos, 0);

  /* Since we don't know which revision of X we're running, we'll use both
     the X11R3 and X11R4 techniques.  I don't know if this is a good idea.  */

  /* X11R4: send a ClientMessage to the window manager using the
     WM_CHANGE_STATE type.  */
  {
    XEvent msg;

    msg.xclient.window = FRAME_X_WINDOW (f);
    msg.xclient.type = ClientMessage;
    msg.xclient.message_type = FRAME_DISPLAY_INFO (f)->Xatom_wm_change_state;
    msg.xclient.format = 32;
    msg.xclient.data.l[0] = IconicState;
    msg.xclient.data.l[1] = 0;
    msg.xclient.data.l[2] = 0;
    msg.xclient.data.l[3] = 0;
    msg.xclient.data.l[4] = 0;

    if (! XSendEvent (FRAME_X_DISPLAY (f),
		      FRAME_DISPLAY_INFO (f)->root_window,
		      False,
		      SubstructureRedirectMask | SubstructureNotifyMask,
		      &msg))
      {
	unblock_input ();
	error ("Can't notify window manager of iconification");
      }
  }

  /* X11R3: set the initial_state field of the window manager hints to
     IconicState.  */
  x_wm_set_window_state (f, IconicState);

  if (!FRAME_VISIBLE_P (f))
    {
      /* If the frame was withdrawn, before, we must map it.  */
      XMapRaised (FRAME_X_DISPLAY (f), FRAME_X_WINDOW (f));
    }

  SET_FRAME_ICONIFIED (f, true);
  SET_FRAME_VISIBLE (f, 0);

  XFlush (FRAME_X_DISPLAY (f));
  unblock_input ();
#endif /* not USE_X_TOOLKIT */
}

\f
/* Free X resources of frame F.  */

void
x_free_frame_resources (struct frame *f)
{
  struct x_display_info *dpyinfo = FRAME_DISPLAY_INFO (f);
  Mouse_HLInfo *hlinfo = &dpyinfo->mouse_highlight;
#ifdef USE_X_TOOLKIT
  Lisp_Object bar;
  struct scroll_bar *b;
#endif

  block_input ();

#ifdef HAVE_XINPUT2
  /* Remove any record of this frame being focused.  */
  xi_handle_delete_frame (dpyinfo, f);
#endif

#ifdef HAVE_XINPUT2_2
  /* Remove any touch points associated with F.  */
  xi_unlink_touch_points (f);
#endif

  /* We must free faces before destroying windows because some
     font-driver (e.g. xft) access a window while finishing a face.

     This function must be called to remove this frame's fontsets from
     Vfontset_list, and is itself responsible for not issuing X requests
     if the connection has already been terminated.  Otherwise, a future
     call to a function that iterates over all existing fontsets might
     crash, as they are not prepared to receive dead frames.
     (bug#66151) */
  free_frame_faces (f);

  /* If a display connection is dead, don't try sending more
     commands to the X server.  */
  if (dpyinfo->display)
    {
      /* Always exit with visible pointer to avoid weird issue
	 with Xfixes (Bug#17609).  */
      if (f->pointer_invisible)
	XTtoggle_invisible_pointer (f, 0);

      tear_down_x_back_buffer (f);

      if (f->output_data.x->icon_desc)
	XDestroyWindow (FRAME_X_DISPLAY (f), f->output_data.x->icon_desc);

#ifdef USE_X_TOOLKIT
      /* Explicitly destroy the scroll bars of the frame.  Without
	 this, we get "BadDrawable" errors from the toolkit later on,
	 presumably from expose events generated for the disappearing
	 toolkit scroll bars.  */
      for (bar = FRAME_SCROLL_BARS (f); !NILP (bar); bar = b->next)
	{
	  b = XSCROLL_BAR (bar);
	  x_scroll_bar_remove (b);
	}
#endif

#ifdef HAVE_X_I18N
      if (FRAME_XIC (f))
	free_frame_xic (f);
#endif

#ifdef USE_CAIRO
      x_cr_destroy_frame_context (f);
#endif
#ifdef USE_X_TOOLKIT
      if (f->output_data.x->widget)
	{
	  XtDestroyWidget (f->output_data.x->widget);
	  f->output_data.x->widget = NULL;
	}
      /* Tooltips don't have widgets, only a simple X window, even if
	 we are using a toolkit.  */
      else if (FRAME_X_WINDOW (f))
        XDestroyWindow (FRAME_X_DISPLAY (f), FRAME_X_WINDOW (f));

      free_frame_menubar (f);

      if (f->shell_position)
	xfree (f->shell_position);
#else  /* !USE_X_TOOLKIT */

#ifdef HAVE_XWIDGETS
      kill_frame_xwidget_views (f);
#endif

#ifdef USE_GTK
      xg_free_frame_widgets (f);
#endif /* USE_GTK */

      tear_down_x_back_buffer (f);
      if (FRAME_X_WINDOW (f))
	XDestroyWindow (FRAME_X_DISPLAY (f), FRAME_X_WINDOW (f));
#endif /* !USE_X_TOOLKIT */

#ifdef HAVE_XSYNC
      if (FRAME_X_BASIC_COUNTER (f) != None)
	XSyncDestroyCounter (FRAME_X_DISPLAY (f),
			     FRAME_X_BASIC_COUNTER (f));

      if (FRAME_X_EXTENDED_COUNTER (f) != None)
	XSyncDestroyCounter (FRAME_X_DISPLAY (f),
			     FRAME_X_EXTENDED_COUNTER (f));
#endif

      unload_color (f, FRAME_FOREGROUND_PIXEL (f));
      unload_color (f, FRAME_BACKGROUND_PIXEL (f));
      unload_color (f, f->output_data.x->cursor_pixel);
      unload_color (f, f->output_data.x->cursor_foreground_pixel);
      unload_color (f, f->output_data.x->border_pixel);
      unload_color (f, f->output_data.x->mouse_pixel);

      if (f->output_data.x->scroll_bar_background_pixel != -1)
	unload_color (f, f->output_data.x->scroll_bar_background_pixel);
      if (f->output_data.x->scroll_bar_foreground_pixel != -1)
	unload_color (f, f->output_data.x->scroll_bar_foreground_pixel);
#if defined (USE_LUCID) && defined (USE_TOOLKIT_SCROLL_BARS)
      /* Scrollbar shadow colors.  */
      if (f->output_data.x->scroll_bar_top_shadow_pixel != -1)
	unload_color (f, f->output_data.x->scroll_bar_top_shadow_pixel);
      if (f->output_data.x->scroll_bar_bottom_shadow_pixel != -1)
	unload_color (f, f->output_data.x->scroll_bar_bottom_shadow_pixel);
#endif /* USE_LUCID && USE_TOOLKIT_SCROLL_BARS */
      if (f->output_data.x->white_relief.pixel != -1)
	unload_color (f, f->output_data.x->white_relief.pixel);
      if (f->output_data.x->black_relief.pixel != -1)
	unload_color (f, f->output_data.x->black_relief.pixel);

      x_free_gcs (f);

      /* Free extra GCs allocated by x_setup_relief_colors.  */
      if (f->output_data.x->white_relief.gc)
	{
	  XFreeGC (dpyinfo->display, f->output_data.x->white_relief.gc);
	  f->output_data.x->white_relief.gc = 0;
	}
      if (f->output_data.x->black_relief.gc)
	{
	  XFreeGC (dpyinfo->display, f->output_data.x->black_relief.gc);
	  f->output_data.x->black_relief.gc = 0;
	}

      /* Free cursors.  */
      if (f->output_data.x->text_cursor != 0)
	XFreeCursor (FRAME_X_DISPLAY (f), f->output_data.x->text_cursor);
      if (f->output_data.x->nontext_cursor != 0)
	XFreeCursor (FRAME_X_DISPLAY (f), f->output_data.x->nontext_cursor);
      if (f->output_data.x->modeline_cursor != 0)
	XFreeCursor (FRAME_X_DISPLAY (f), f->output_data.x->modeline_cursor);
      if (f->output_data.x->hand_cursor != 0)
	XFreeCursor (FRAME_X_DISPLAY (f), f->output_data.x->hand_cursor);
      if (f->output_data.x->hourglass_cursor != 0)
	XFreeCursor (FRAME_X_DISPLAY (f), f->output_data.x->hourglass_cursor);
      if (f->output_data.x->horizontal_drag_cursor != 0)
	XFreeCursor (FRAME_X_DISPLAY (f), f->output_data.x->horizontal_drag_cursor);
      if (f->output_data.x->vertical_drag_cursor != 0)
	XFreeCursor (FRAME_X_DISPLAY (f), f->output_data.x->vertical_drag_cursor);
      if (f->output_data.x->left_edge_cursor != 0)
	XFreeCursor (FRAME_X_DISPLAY (f), f->output_data.x->left_edge_cursor);
      if (f->output_data.x->top_left_corner_cursor != 0)
	XFreeCursor (FRAME_X_DISPLAY (f), f->output_data.x->top_left_corner_cursor);
      if (f->output_data.x->top_edge_cursor != 0)
	XFreeCursor (FRAME_X_DISPLAY (f), f->output_data.x->top_edge_cursor);
      if (f->output_data.x->top_right_corner_cursor != 0)
	XFreeCursor (FRAME_X_DISPLAY (f), f->output_data.x->top_right_corner_cursor);
      if (f->output_data.x->right_edge_cursor != 0)
	XFreeCursor (FRAME_X_DISPLAY (f), f->output_data.x->right_edge_cursor);
      if (f->output_data.x->bottom_right_corner_cursor != 0)
	XFreeCursor (FRAME_X_DISPLAY (f), f->output_data.x->bottom_right_corner_cursor);
      if (f->output_data.x->bottom_edge_cursor != 0)
	XFreeCursor (FRAME_X_DISPLAY (f), f->output_data.x->bottom_edge_cursor);
      if (f->output_data.x->bottom_left_corner_cursor != 0)
	XFreeCursor (FRAME_X_DISPLAY (f), f->output_data.x->bottom_left_corner_cursor);

      /* Free sync fences.  */
#if defined HAVE_XSYNCTRIGGERFENCE && !defined USE_GTK && defined HAVE_CLOCK_GETTIME
      x_sync_free_fences (f);
#endif

#ifdef USE_TOOLKIT_SCROLL_BARS
      /* Since the frame was destroyed, we can no longer guarantee
	 that scroll bar events will be received.  Clear
	 protected_windows.  */
      dpyinfo->n_protected_windows = 0;
#endif
    }

#ifdef HAVE_GTK3
  if (FRAME_OUTPUT_DATA (f)->scrollbar_background_css_provider)
    g_object_unref (FRAME_OUTPUT_DATA (f)->scrollbar_background_css_provider);

  if (FRAME_OUTPUT_DATA (f)->scrollbar_foreground_css_provider)
    g_object_unref (FRAME_OUTPUT_DATA (f)->scrollbar_foreground_css_provider);
#endif

  if (f == dpyinfo->motif_drag_atom_owner)
    {
      dpyinfo->motif_drag_atom_owner = NULL;
      dpyinfo->motif_drag_atom = None;
    }

  if (f == dpyinfo->x_focus_frame)
    dpyinfo->x_focus_frame = 0;
  if (f == dpyinfo->x_focus_event_frame)
    dpyinfo->x_focus_event_frame = 0;
  if (f == dpyinfo->highlight_frame)
    dpyinfo->highlight_frame = 0;
  if (f == hlinfo->mouse_face_mouse_frame)
    reset_mouse_highlight (hlinfo);

  /* These two need to be freed now that they are used to compute the
     mouse position, I think.  */
  if (f == dpyinfo->last_mouse_motion_frame)
    dpyinfo->last_mouse_motion_frame = NULL;
  if (f == dpyinfo->last_mouse_frame)
    dpyinfo->last_mouse_frame = NULL;

#ifdef HAVE_XINPUT2
#if !defined USE_X_TOOLKIT && (!defined USE_GTK || defined HAVE_GTK3)
  /* Consider a frame being unfocused with no following FocusIn event
     while an older focus from another seat exists.  The client
     pointer should then revert to the other seat, so handle potential
     focus changes.  */

  if (dpyinfo->supports_xi2)
    xi_handle_focus_change (dpyinfo);
#endif /* !USE_X_TOOLKIT && (!USE_GTK || HAVE_GTK3) */
#endif /* HAVE_XINPUT2 */

  unblock_input ();
}


/* Destroy the X window of frame F.  */

static void
x_destroy_window (struct frame *f)
{
  struct x_display_info *dpyinfo = FRAME_DISPLAY_INFO (f);

  /* If a display connection is dead, don't try sending more
     commands to the X server.  */
  if (dpyinfo->display != 0)
    x_free_frame_resources (f);

  xfree (f->output_data.x->saved_menu_event);

#ifdef HAVE_X_I18N
  if (f->output_data.x->preedit_chars)
    xfree (f->output_data.x->preedit_chars);
#endif

#ifdef HAVE_XINPUT2
#ifdef HAVE_XINPUT2_1
  if (f->output_data.x->xi_masks)
    XFree (f->output_data.x->xi_masks);
#else
  /* This is allocated by us under very old versions of libXi; see
     `setup_xi_event_mask'.  */
  if (f->output_data.x->xi_masks)
    xfree (f->output_data.x->xi_masks);
#endif
#endif

  xfree (f->output_data.x);
  f->output_data.x = NULL;

  dpyinfo->reference_count--;
}

/* Intern NAME in DPYINFO, but check to see if the atom was already
   interned when the X connection was opened, and use that instead.

   If PREDEFINED_ONLY, return None if the atom was not interned during
   connection setup or is predefined.  */
Atom
x_intern_cached_atom (struct x_display_info *dpyinfo,
		      const char *name, bool predefined_only)
{
  int i;
  char *ptr;
  Atom *atom;

  /* Special atoms that depend on the screen number.  */
  char xsettings_atom_name[sizeof "_XSETTINGS_S%d" - 2
			   + INT_STRLEN_BOUND (int)];
  char cm_atom_name[sizeof "_NET_WM_CM_S%d" - 2
		    + INT_STRLEN_BOUND (int)];

  sprintf (xsettings_atom_name, "_XSETTINGS_S%d",
	   XScreenNumberOfScreen (dpyinfo->screen));
  sprintf (cm_atom_name, "_NET_WM_CM_S%d",
	   XScreenNumberOfScreen (dpyinfo->screen));

  if (!strcmp (name, xsettings_atom_name))
    return dpyinfo->Xatom_xsettings_sel;

  if (!strcmp (name, cm_atom_name))
    return dpyinfo->Xatom_NET_WM_CM_Sn;

  /* Now do some common predefined atoms.  */
  if (!strcmp (name, "PRIMARY"))
    return XA_PRIMARY;

  if (!strcmp (name, "SECONDARY"))
    return XA_SECONDARY;

  if (!strcmp (name, "STRING"))
    return XA_STRING;

  if (!strcmp (name, "INTEGER"))
    return XA_INTEGER;

  if (!strcmp (name, "ATOM"))
    return XA_ATOM;

  if (!strcmp (name, "WINDOW"))
    return XA_WINDOW;

  if (!strcmp (name, "DRAWABLE"))
    return XA_DRAWABLE;

  if (!strcmp (name, "BITMAP"))
    return XA_BITMAP;

  if (!strcmp (name, "CARDINAL"))
    return XA_CARDINAL;

  if (!strcmp (name, "COLORMAP"))
    return XA_COLORMAP;

  if (!strcmp (name, "CURSOR"))
    return XA_CURSOR;

  if (!strcmp (name, "FONT"))
    return XA_FONT;

  if (dpyinfo->motif_drag_atom != None
      && !strcmp (name, dpyinfo->motif_drag_atom_name))
    return dpyinfo->motif_drag_atom;

  for (i = 0; i < ARRAYELTS (x_atom_refs); ++i)
    {
      ptr = (char *) dpyinfo;

      if (!strcmp (x_atom_refs[i].name, name))
	{
	  atom = (Atom *) (ptr + x_atom_refs[i].offset);

	  return *atom;
	}
    }

  if (predefined_only)
    return None;

  return XInternAtom (dpyinfo->display, name, False);
}

/* Get the name of ATOM, but try not to make a request to the X
   server.  Whether or not a request to the X server happened is
   placed in NEED_SYNC.  */
char *
x_get_atom_name (struct x_display_info *dpyinfo, Atom atom,
		 bool *need_sync)
{
  char *dpyinfo_pointer, *name, *value, *buffer;
  int i;
  Atom ref_atom;

  dpyinfo_pointer = (char *) dpyinfo;
  value = NULL;

  if (need_sync)
    *need_sync = false;

  buffer = alloca (45 + INT_STRLEN_BOUND (int));

  switch (atom)
    {
    case XA_PRIMARY:
      return xstrdup ("PRIMARY");

    case XA_SECONDARY:
      return xstrdup ("SECONDARY");

    case XA_INTEGER:
      return xstrdup ("INTEGER");

    case XA_ATOM:
      return xstrdup ("ATOM");

    case XA_CARDINAL:
      return xstrdup ("CARDINAL");

    case XA_WINDOW:
      return xstrdup ("WINDOW");

    case XA_DRAWABLE:
      return xstrdup ("DRAWABLE");

    case XA_BITMAP:
      return xstrdup ("BITMAP");

    case XA_COLORMAP:
      return xstrdup ("COLORMAP");

    case XA_FONT:
      return xstrdup ("FONT");

    default:
      if (dpyinfo->motif_drag_atom
	  && atom == dpyinfo->motif_drag_atom)
	return xstrdup (dpyinfo->motif_drag_atom_name);

      if (atom == dpyinfo->Xatom_xsettings_sel)
	{
	  sprintf (buffer, "_XSETTINGS_S%d",
		   XScreenNumberOfScreen (dpyinfo->screen));
	  return xstrdup (buffer);
	}

      if (atom == dpyinfo->Xatom_NET_WM_CM_Sn)
	{
	  sprintf (buffer, "_NET_WM_CM_S%d",
		   XScreenNumberOfScreen (dpyinfo->screen));
	  return xstrdup (buffer);
	}

      for (i = 0; i < ARRAYELTS (x_atom_refs); ++i)
	{
	  ref_atom = *(Atom *) (dpyinfo_pointer
				+ x_atom_refs[i].offset);

	  if (atom == ref_atom)
	    return xstrdup (x_atom_refs[i].name);
	}

      name = XGetAtomName (dpyinfo->display, atom);

      if (need_sync)
	*need_sync = true;

      if (name)
	{
	  value = xstrdup (name);
	  XFree (name);
	}

      break;
    }

  return value;
}

/* Intern an array of atoms, and do so quickly, avoiding extraneous
   roundtrips to the X server.

   Avoid sending atoms that have already been found to the X server.
   This cannot do anything that will end up triggering garbage
   collection.  */

void
x_intern_atoms (struct x_display_info *dpyinfo, char **names, int count,
		Atom *atoms_return)
{
  int i, j, indices[256];
  char *new_names[256];
  Atom results[256], candidate;

  if (count > 256)
    /* Atoms array too big to inspect reasonably, just send it to the
       server and back.  */
    XInternAtoms (dpyinfo->display, new_names, count, False, atoms_return);
  else
    {
      for (i = 0, j = 0; i < count; ++i)
	{
	  candidate = x_intern_cached_atom (dpyinfo, names[i],
					    true);

	  if (candidate)
	    atoms_return[i] = candidate;
	  else
	    {
	      indices[j++] = i;
	      new_names[j - 1] = names[i];
	    }
	}

      if (!j)
	return;

      /* Now, get the results back from the X server.  */
      XInternAtoms (dpyinfo->display, new_names, j, False,
		    results);

      for (i = 0; i < j; ++i)
	atoms_return[indices[i]] = results[i];
    }
}

#ifndef USE_GTK

/* Set up XEmbed for F, and change its save set to handle the parent
   being destroyed.  */

bool
x_embed_frame (struct x_display_info *dpyinfo, struct frame *f)
{
  bool rc;

  x_catch_errors (dpyinfo->display);
  /* Catch errors; the target window might no longer exist.  */
  XReparentWindow (dpyinfo->display, FRAME_OUTER_WINDOW (f),
		   FRAME_OUTPUT_DATA (f)->parent_desc, 0, 0);
  rc = x_had_errors_p (dpyinfo->display);
  x_uncatch_errors_after_check ();

  if (rc)
    return false;

  return true;
}

#endif

\f
/* Setting window manager hints.  */

/* Set the normal size hints for the window manager, for frame F.
   FLAGS is the flags word to use--or 0 meaning preserve the flags
   that the window now has.
   If USER_POSITION, set the USPosition
   flag (this is useful when FLAGS is 0).
   The GTK version is in gtkutils.c.  */

void
x_wm_set_size_hint (struct frame *f, long flags, bool user_position)
{
#ifndef USE_GTK
  XSizeHints size_hints;
  Window window = FRAME_OUTER_WINDOW (f);
#ifdef USE_X_TOOLKIT
  WMShellWidget shell;
#ifndef USE_MOTIF
  bool hints_changed;
#endif
#endif

  if (!window)
    return;

#ifdef USE_X_TOOLKIT
  if (f->output_data.x->widget)
    {
      /* Do this dance in xterm.c because some stuff is not as easily
	 available in widget.c.  */

      eassert (XtIsWMShell (f->output_data.x->widget));
      shell = (WMShellWidget) f->output_data.x->widget;

      if (flags)
	{
	  shell->wm.size_hints.flags &= ~(PPosition | USPosition);
	  shell->wm.size_hints.flags |= flags & (PPosition | USPosition);
	}

      if (user_position)
	{
	  shell->wm.size_hints.flags &= ~PPosition;
	  shell->wm.size_hints.flags |= USPosition;
	}

#ifndef USE_MOTIF
      hints_changed
	= widget_update_wm_size_hints (f->output_data.x->widget,
				       f->output_data.x->edit_widget);
#else
      widget_update_wm_size_hints (f->output_data.x->widget,
				   f->output_data.x->edit_widget);

      /* Do this all over again for the benefit of Motif, which always
	 knows better than the programmer.  */
      shell->wm.size_hints.flags &= ~(PPosition | USPosition);
      shell->wm.size_hints.flags |= flags & (PPosition | USPosition);

      if (user_position)
	{
	  shell->wm.size_hints.flags &= ~PPosition;
	  shell->wm.size_hints.flags |= USPosition;
	}
#endif

      /* Drill hints into Motif, since it keeps setting its own.  */
      size_hints.flags = shell->wm.size_hints.flags;
      size_hints.x = shell->wm.size_hints.x;
      size_hints.y = shell->wm.size_hints.y;
      size_hints.width = shell->wm.size_hints.width;
      size_hints.height = shell->wm.size_hints.height;
      size_hints.min_width = shell->wm.size_hints.min_width;
      size_hints.min_height = shell->wm.size_hints.min_height;
      size_hints.max_width = shell->wm.size_hints.max_width;
      size_hints.max_height = shell->wm.size_hints.max_height;
      size_hints.width_inc = shell->wm.size_hints.width_inc;
      size_hints.height_inc = shell->wm.size_hints.height_inc;
      size_hints.min_aspect.x = shell->wm.size_hints.min_aspect.x;
      size_hints.min_aspect.y = shell->wm.size_hints.min_aspect.y;
      size_hints.max_aspect.x = shell->wm.size_hints.max_aspect.x;
      size_hints.max_aspect.y = shell->wm.size_hints.max_aspect.y;
      size_hints.base_width = shell->wm.base_width;
      size_hints.base_height = shell->wm.base_height;
      size_hints.win_gravity = shell->wm.win_gravity;

#ifdef USE_MOTIF
      XSetWMNormalHints (XtDisplay (f->output_data.x->widget),
			 XtWindow (f->output_data.x->widget),
			 &size_hints);
#else
      /* In many cases, widget_update_wm_size_hints will not have
	 updated the size hints if only flags changed.  When that
	 happens, set the WM hints manually.  */

      if (!hints_changed)
	XSetWMNormalHints (XtDisplay (f->output_data.x->widget),
			   XtWindow (f->output_data.x->widget),
			   &size_hints);
#endif

      return;
    }
#endif

  /* Setting PMaxSize caused various problems.  */
  size_hints.flags = PResizeInc | PMinSize /* | PMaxSize */;

  size_hints.x = f->left_pos;
  size_hints.y = f->top_pos;

  size_hints.width = FRAME_PIXEL_WIDTH (f);
  size_hints.height = FRAME_PIXEL_HEIGHT (f);

  size_hints.width_inc = frame_resize_pixelwise ? 1 : FRAME_COLUMN_WIDTH (f);
  size_hints.height_inc = frame_resize_pixelwise ? 1 : FRAME_LINE_HEIGHT (f);

  size_hints.max_width = x_display_pixel_width (FRAME_DISPLAY_INFO (f))
    - FRAME_TEXT_COLS_TO_PIXEL_WIDTH (f, 0);
  size_hints.max_height = x_display_pixel_height (FRAME_DISPLAY_INFO (f))
    - FRAME_TEXT_LINES_TO_PIXEL_HEIGHT (f, 0);

  /* Calculate the base and minimum sizes.  */
  {
    int base_width, base_height;

    base_width = FRAME_TEXT_COLS_TO_PIXEL_WIDTH (f, 0);
    base_height = FRAME_TEXT_LINES_TO_PIXEL_HEIGHT (f, 0);

    /* The window manager uses the base width hints to calculate the
       current number of rows and columns in the frame while
       resizing; min_width and min_height aren't useful for this
       purpose, since they might not give the dimensions for a
       zero-row, zero-column frame.  */

    size_hints.flags |= PBaseSize;
    size_hints.base_width = base_width;
    size_hints.base_height = base_height + FRAME_MENUBAR_HEIGHT (f);
    size_hints.min_width  = base_width;
    size_hints.min_height = base_height;
  }

  /* If we don't need the old flags, we don't need the old hint at all.  */
  if (flags)
    {
      size_hints.flags |= flags;
      goto no_read;
    }

  {
    XSizeHints hints;		/* Sometimes I hate X Windows... */
    long supplied_return;
    int value;

    value = XGetWMNormalHints (FRAME_X_DISPLAY (f), window, &hints,
			       &supplied_return);

    if (flags)
      size_hints.flags |= flags;
    else
      {
	if (value == 0)
	  hints.flags = 0;
	if (hints.flags & PSize)
	  size_hints.flags |= PSize;
	if (hints.flags & PPosition)
	  size_hints.flags |= PPosition;
	if (hints.flags & USPosition)
	  size_hints.flags |= USPosition;
	if (hints.flags & USSize)
	  size_hints.flags |= USSize;
      }
  }

 no_read:

#ifdef PWinGravity
  size_hints.win_gravity = f->win_gravity;
  size_hints.flags |= PWinGravity;

  if (user_position)
    {
      size_hints.flags &= ~ PPosition;
      size_hints.flags |= USPosition;
    }
#endif /* PWinGravity */

  XSetWMNormalHints (FRAME_X_DISPLAY (f), window, &size_hints);
#else
  xg_wm_set_size_hint (f, flags, user_position);
#endif /* USE_GTK */
}

/* Used for IconicState or NormalState */

static void
x_wm_set_window_state (struct frame *f, int state)
{
#ifdef USE_X_TOOLKIT
  Arg al[1];

  XtSetArg (al[0], XtNinitialState, state);
  XtSetValues (f->output_data.x->widget, al, 1);
#else /* not USE_X_TOOLKIT */
  Window window = FRAME_X_WINDOW (f);

  f->output_data.x->wm_hints.flags |= StateHint;
  f->output_data.x->wm_hints.initial_state = state;

  XSetWMHints (FRAME_X_DISPLAY (f), window, &f->output_data.x->wm_hints);
#endif /* not USE_X_TOOLKIT */
}

static void
x_wm_set_icon_pixmap (struct frame *f, ptrdiff_t pixmap_id)
{
  Pixmap icon_pixmap, icon_mask;

#if !defined USE_X_TOOLKIT && !defined USE_GTK
  Window window = FRAME_OUTER_WINDOW (f);
#endif

  if (pixmap_id > 0)
    {
      icon_pixmap = image_bitmap_pixmap (f, pixmap_id);
      f->output_data.x->wm_hints.icon_pixmap = icon_pixmap;
      icon_mask = x_bitmap_mask (f, pixmap_id);
      f->output_data.x->wm_hints.icon_mask = icon_mask;
    }
  else
    {
      /* It seems there is no way to turn off use of an icon
	 pixmap.  */
      return;
    }


#ifdef USE_GTK
  {
    xg_set_frame_icon (f, icon_pixmap, icon_mask);
    return;
  }

#elif defined (USE_X_TOOLKIT) /* same as in x_wm_set_window_state.  */

  {
    Arg al[1];
    XtSetArg (al[0], XtNiconPixmap, icon_pixmap);
    XtSetValues (f->output_data.x->widget, al, 1);
    XtSetArg (al[0], XtNiconMask, icon_mask);
    XtSetValues (f->output_data.x->widget, al, 1);
  }

#else /* not USE_X_TOOLKIT && not USE_GTK */

  f->output_data.x->wm_hints.flags |= (IconPixmapHint | IconMaskHint);
  XSetWMHints (FRAME_X_DISPLAY (f), window, &f->output_data.x->wm_hints);

#endif /* not USE_X_TOOLKIT && not USE_GTK */
}

void
x_wm_set_icon_position (struct frame *f, int icon_x, int icon_y)
{
  Window window = FRAME_OUTER_WINDOW (f);

  f->output_data.x->wm_hints.flags |= IconPositionHint;
  f->output_data.x->wm_hints.icon_x = icon_x;
  f->output_data.x->wm_hints.icon_y = icon_y;

  XSetWMHints (FRAME_X_DISPLAY (f), window, &f->output_data.x->wm_hints);
}

\f
/***********************************************************************
				Fonts
 ***********************************************************************/

#ifdef GLYPH_DEBUG

/* Check that FONT is valid on frame F.  It is if it can be found in F's
   font table.  */

static void
x_check_font (struct frame *f, struct font *font)
{
  eassert (font != NULL && ! NILP (font->props[FONT_TYPE_INDEX]));
  if (font->driver->check)
    eassert (font->driver->check (f, font) == 0);
}

#endif /* GLYPH_DEBUG */

\f
/***********************************************************************
                             Image Hooks
 ***********************************************************************/

static void
x_free_pixmap (struct frame *f, Emacs_Pixmap pixmap)
{
#ifdef USE_CAIRO
  if (pixmap)
    {
      xfree (pixmap->data);
      xfree (pixmap);
    }
#else
  XFreePixmap (FRAME_X_DISPLAY (f), pixmap);
#endif
}

\f
/***********************************************************************
			    Initialization
 ***********************************************************************/

#ifdef USE_X_TOOLKIT
static XrmOptionDescRec emacs_options[] = {
  {(char *) "-geometry", (char *) ".geometry", XrmoptionSepArg, NULL},
  {(char *) "-iconic", (char *) ".iconic", XrmoptionNoArg, (XtPointer) "yes"},

  {(char *) "-internal-border-width",
   (char *) "*EmacsScreen.internalBorderWidth", XrmoptionSepArg, NULL},
  {(char *) "-ib", (char *) "*EmacsScreen.internalBorderWidth",
   XrmoptionSepArg, NULL},
  {(char *) "-T", (char *) "*EmacsShell.title", XrmoptionSepArg, NULL},
  {(char *) "-wn", (char *) "*EmacsShell.title", XrmoptionSepArg, NULL},
  {(char *) "-title", (char *) "*EmacsShell.title", XrmoptionSepArg, NULL},
  {(char *) "-iconname", (char *) "*EmacsShell.iconName",
   XrmoptionSepArg, NULL},
  {(char *) "-in", (char *) "*EmacsShell.iconName", XrmoptionSepArg, NULL},
  {(char *) "-mc", (char *) "*pointerColor", XrmoptionSepArg, NULL},
  {(char *) "-cr", (char *) "*cursorColor", XrmoptionSepArg, NULL}
};

/* Whether atimer for Xt timeouts is activated or not.  */

static bool x_timeout_atimer_activated_flag;

#endif /* USE_X_TOOLKIT */

static int x_initialized;

/* Test whether two display-name strings agree up to the dot that separates
   the screen number from the server number.  */
static bool
same_x_server (const char *name1, const char *name2)
{
  bool seen_colon = false;
  Lisp_Object sysname = Fsystem_name ();
  if (! STRINGP (sysname))
    sysname = empty_unibyte_string;
  const char *system_name = SSDATA (sysname);
  ptrdiff_t system_name_length = SBYTES (sysname);
  ptrdiff_t length_until_period = 0;

  while (system_name[length_until_period] != 0
	 && system_name[length_until_period] != '.')
    length_until_period++;

  /* Treat `unix' like an empty host name.  */
  if (! strncmp (name1, "unix:", 5))
    name1 += 4;
  if (! strncmp (name2, "unix:", 5))
    name2 += 4;
  /* Treat this host's name like an empty host name.  */
  if (! strncmp (name1, system_name, system_name_length)
      && name1[system_name_length] == ':')
    name1 += system_name_length;
  if (! strncmp (name2, system_name, system_name_length)
      && name2[system_name_length] == ':')
    name2 += system_name_length;
  /* Treat this host's domainless name like an empty host name.  */
  if (! strncmp (name1, system_name, length_until_period)
      && name1[length_until_period] == ':')
    name1 += length_until_period;
  if (! strncmp (name2, system_name, length_until_period)
      && name2[length_until_period] == ':')
    name2 += length_until_period;

  for (; *name1 != '\0' && *name1 == *name2; name1++, name2++)
    {
      if (*name1 == ':')
	seen_colon = true;
      if (seen_colon && *name1 == '.')
	return true;
    }
  return (seen_colon
	  && (*name1 == '.' || *name1 == '\0')
	  && (*name2 == '.' || *name2 == '\0'));
}

/* Count number of set bits in mask and number of bits to shift to
   get to the first bit.  With MASK 0x7e0, *BITS is set to 6, and *OFFSET
   to 5.  */
static void
get_bits_and_offset (unsigned long mask, int *bits, int *offset)
{
  int nr = 0;
  int off = 0;

  while (!(mask & 1))
    {
      off++;
      mask >>= 1;
    }

  while (mask & 1)
    {
      nr++;
      mask >>= 1;
    }

  *offset = off;
  *bits = nr;
}

/* Return true iff display DISPLAY is available for use.
   But don't permanently open it, just test its availability.  */

bool
x_display_ok (const char *display)
{
  /* XOpenDisplay fails if it gets a signal.  Block SIGIO which may arrive.  */
  unrequest_sigio ();
  Display *dpy = XOpenDisplay (display);
  request_sigio ();
  if (!dpy)
    return false;
  XCloseDisplay (dpy);
  return true;
}

#ifdef USE_GTK
static void
my_log_handler (const gchar *log_domain, GLogLevelFlags log_level,
		const gchar *msg, gpointer user_data)
{
  if (!strstr (msg, "g_set_prgname"))
      fprintf (stderr, "%s-WARNING **: %s\n", log_domain, msg);
}
#endif

/* Current X display connection identifier.  Incremented for each next
   connection established.  */
static unsigned x_display_id;

#if defined HAVE_XINPUT2 && !defined HAVE_GTK3

/* Select for device change events on the root window of DPYINFO.
   These include device change and hierarchy change notifications.  */

static void
xi_select_hierarchy_events (struct x_display_info *dpyinfo)
{
  XIEventMask mask;
  ptrdiff_t l;
  unsigned char *m;

  l = XIMaskLen (XI_LASTEVENT);
  mask.mask = m = alloca (l);
  memset (m, 0, l);
  mask.mask_len = l;

  mask.deviceid = XIAllDevices;

  XISetMask (m, XI_PropertyEvent);
  XISetMask (m, XI_HierarchyChanged);
  XISetMask (m, XI_DeviceChanged);

  XISelectEvents (dpyinfo->display, dpyinfo->root_window,
		  &mask, 1);
}

#endif

#if defined HAVE_XINPUT2 && defined HAVE_GTK3

/* Look up whether or not GTK already initialized the X input
   extension.

   Value is 0 if GTK was not built with the input extension, or if it
   was explicitly disabled, 1 if GTK enabled the input extension and
   the version was successfully determined, and 2 if that information
   could not be determined.  */

static int
xi_check_toolkit (Display *display)
{
  GdkDisplay *gdpy;
  GdkDeviceManager *manager;

  gdpy = gdk_x11_lookup_xdisplay (display);
  eassume (gdpy);
  manager = gdk_display_get_device_manager (gdpy);

  if (!strcmp (G_OBJECT_TYPE_NAME (manager),
	       "GdkX11DeviceManagerXI2"))
    return 1;

  if (!strcmp (G_OBJECT_TYPE_NAME (manager),
	       "GdkX11DeviceManagerCore"))
    return 0;

  /* Something changed in GDK so this information is no longer
     available.  */

  return 2;
}

#endif

/* Open a connection to X display DISPLAY_NAME, and return the
   structure that describes the open display.  If obtaining the XCB
   connection or toolkit-specific display fails, return NULL.  Signal
   an error if opening the display itself failed.  */

struct x_display_info *
x_term_init (Lisp_Object display_name, char *xrm_option, char *resource_name)
{
  Display *dpy;
  XKeyboardState keyboard_state;
  struct terminal *terminal;
  struct x_display_info *dpyinfo;
  XrmDatabase xrdb;
  Lisp_Object tem, quit_keysym;
#ifdef USE_XCB
  xcb_connection_t *xcb_conn;
#endif
  static char const cm_atom_fmt[] = "_NET_WM_CM_S%d";
  char cm_atom_sprintf[sizeof cm_atom_fmt - 2 + INT_STRLEN_BOUND (int)];
#ifdef USE_GTK
  GdkDisplay *gdpy;
  GdkScreen *gscr;
#endif
#ifdef HAVE_XFIXES
  Lisp_Object lisp_name;
  int num_fast_selections;
  Atom selection_name;
#ifdef USE_XCB
  xcb_get_selection_owner_cookie_t *selection_cookies;
  xcb_get_selection_owner_reply_t *selection_reply;
  xcb_generic_error_t *selection_error;
#endif
#endif
  int i;

#if defined HAVE_XFIXES && defined USE_XCB
  USE_SAFE_ALLOCA;
#endif

  block_input ();

  if (!x_initialized)
    {
      x_initialize ();
      ++x_initialized;
    }

#if defined USE_X_TOOLKIT || defined USE_GTK

  if (!x_display_ok (SSDATA (display_name)))
    error ("Display %s can't be opened", SSDATA (display_name));

#endif

#ifdef USE_GTK
  {
#define NUM_ARGV 10
    int argc;
    char *argv[NUM_ARGV];
    char **argv2 = argv;
    guint id;

    if (x_initialized++ > 1)
      {
        xg_display_open (SSDATA (display_name), &dpy);
      }
    else
      {
        static char display_opt[] = "--display";
        static char name_opt[] = "--name";

        for (argc = 0; argc < NUM_ARGV; ++argc)
          argv[argc] = 0;

        argc = 0;
        argv[argc++] = initial_argv[0];

        if (! NILP (display_name))
          {
            argv[argc++] = display_opt;
            argv[argc++] = SSDATA (display_name);
          }

        argv[argc++] = name_opt;
        argv[argc++] = resource_name;

        XSetLocaleModifiers ("");

        /* Work around GLib bug that outputs a faulty warning. See
           https://bugzilla.gnome.org/show_bug.cgi?id=563627.  */
        id = g_log_set_handler ("GLib", G_LOG_LEVEL_WARNING | G_LOG_FLAG_FATAL
                                  | G_LOG_FLAG_RECURSION, my_log_handler, NULL);

        /* NULL window -> events for all windows go to our function.
           Call before gtk_init so Gtk+ event filters comes after our.  */
        gdk_window_add_filter (NULL, event_handler_gdk, NULL);

        /* gtk_init does set_locale.  Fix locale before and after.  */
        fixup_locale ();
        unrequest_sigio (); /* See comment in x_display_ok.  */
        gtk_init (&argc, &argv2);
        request_sigio ();

        g_log_remove_handler ("GLib", id);

        xg_initialize ();

	/* Do this after the call to xg_initialize, because when
	   Fontconfig is used, xg_initialize calls its initialization
	   function which in some versions of Fontconfig calls setlocale.  */
	fixup_locale ();

        dpy = DEFAULT_GDK_DISPLAY ();

#ifndef HAVE_GTK3
        /* Load our own gtkrc if it exists.  */
        {
          const char *file = "~/.emacs.d/gtkrc";
          Lisp_Object s, abs_file;

          s = build_string (file);
          abs_file = Fexpand_file_name (s, Qnil);

          if (! NILP (abs_file) && !NILP (Ffile_readable_p (abs_file)))
            gtk_rc_parse (SSDATA (abs_file));
        }
#endif

        XSetErrorHandler (x_error_handler);
        XSetIOErrorHandler (x_io_error_quitter);
      }
  }
#else /* not USE_GTK */
#ifdef USE_X_TOOLKIT
  /* weiner@footloose.sps.mot.com reports that this causes
     errors with X11R5:
	   X protocol error: BadAtom (invalid Atom parameter)
	   on protocol request 18skiloaf.
     So let's not use it until R6.  */
#ifdef HAVE_X11XTR6
  XtSetLanguageProc (NULL, NULL, NULL);
#endif

  {
    int argc = 0;
    char *argv[3];

    argv[0] = (char *) "";
    argc = 1;
    if (xrm_option)
      {
	argv[argc++] = (char *) "-xrm";
	argv[argc++] = xrm_option;
      }
    turn_on_atimers (false);
    unrequest_sigio ();  /* See comment in x_display_ok.  */
    dpy = XtOpenDisplay (Xt_app_con, SSDATA (display_name),
			 resource_name, EMACS_CLASS,
			 emacs_options, XtNumber (emacs_options),
			 &argc, argv);
    request_sigio ();
    turn_on_atimers (true);

#ifdef HAVE_X11XTR6
    /* I think this is to compensate for XtSetLanguageProc.  */
    fixup_locale ();
#endif
  }

#else /* not USE_X_TOOLKIT */
  XSetLocaleModifiers ("");
  unrequest_sigio ();  /* See comment in x_display_ok.  */
  dpy = XOpenDisplay (SSDATA (display_name));
  request_sigio ();
#endif /* not USE_X_TOOLKIT */
#endif /* not USE_GTK*/

  /* Detect failure.  */
  if (dpy == 0)
    {
#if !defined USE_X_TOOLKIT && !defined USE_GTK
      /* Avoid opening a display three times (once in dispextern.c
	 upon startup, once in x_display_ok, and once above) to
	 determine whether or not the display is alive on no toolkit
	 builds, where no toolkit initialization happens at all.  */

      error ("Display %s can't be opened", SSDATA (display_name));
#endif

      unblock_input ();

#if defined HAVE_XFIXES && defined USE_XCB
      SAFE_FREE ();
#endif
      return 0;
    }

#ifdef USE_XCB
  xcb_conn = XGetXCBConnection (dpy);
  if (!xcb_conn)
    {
#ifdef USE_GTK
      xg_display_close (dpy);
#else
#ifdef USE_X_TOOLKIT
      XtCloseDisplay (dpy);
#else
      XCloseDisplay (dpy);
#endif
#endif /* ! USE_GTK */

      unblock_input ();

#if defined HAVE_XFIXES && defined USE_XCB
      SAFE_FREE ();
#endif
      return 0;
    }
#endif

  /* Select for structure events on the root window, since this allows
     us to record changes to the size of the screen.  */

  XSelectInput (dpy, DefaultRootWindow (dpy), StructureNotifyMask);

  /* We have definitely succeeded.  Record the new connection.  */

  dpyinfo = xzalloc (sizeof *dpyinfo);
  terminal = x_create_terminal (dpyinfo);

  if (!NILP (Vx_detect_server_trust))
    {
      /* Detect whether or not the X server trusts this client, which
	 is done by making a SetKeyboardControl request and checking
	 for an Access error.  */
      XGrabServer (dpy);
      XGetKeyboardControl (dpy, &keyboard_state);

      x_catch_errors (dpy);

      /* At this point, the display is not on x_display_list, so
	 x_uncatch_errors won't sync.  However, that's okay because
	 x_had_errors_p will.  */

      if (keyboard_state.global_auto_repeat
	  == AutoRepeatModeOn)
	XAutoRepeatOn (dpy);
      else
	XAutoRepeatOff (dpy);

      if (x_had_errors_p (dpy))
	dpyinfo->untrusted = true;
      x_uncatch_errors_after_check ();
      XUngrabServer (dpy);
    }

  dpyinfo->next_failable_request = dpyinfo->failable_requests;

  {
    struct x_display_info *share;

    for (share = x_display_list; share; share = share->next)
      if (same_x_server (SSDATA (XCAR (share->name_list_element)),
			 SSDATA (display_name)))
	break;
    if (share)
      terminal->kboard = share->terminal->kboard;
    else
      {
	terminal->kboard = allocate_kboard (Qx);

	if (!BASE_EQ (XSYMBOL (Qvendor_specific_keysyms)->u.s.function,
		      Qunbound))
	  {
	    char *vendor = ServerVendor (dpy);

	    /* Temporarily hide the partially initialized terminal.
	       Use safe_call so that if a signal happens, a partially
	       initialized display (and display connection) is not
	       kept around.  */
	    terminal_list = terminal->next_terminal;
	    unblock_input ();
	    kset_system_key_alist (terminal->kboard,
				   safe_calln (Qvendor_specific_keysyms,
					       (vendor
						? build_string (vendor)
						: empty_unibyte_string)));
	    block_input ();
	    terminal->next_terminal = terminal_list;
	    terminal_list = terminal;
	  }

	/* Don't let the initial kboard remain current longer than necessary.
	   That would cause problems if a file loaded on startup tries to
	   prompt in the mini-buffer.  */
	if (current_kboard == initial_kboard)
	  current_kboard = terminal->kboard;
      }
    terminal->kboard->reference_count++;
  }

  /* Now look through Vx_quit_keysym for the quit keysym associated
     with this display.  */
  tem = Vx_quit_keysym;
  FOR_EACH_TAIL_SAFE (tem)
    {
      quit_keysym = XCAR (tem);

      /* Check if its car is a string and its cdr a valid keysym.
	 Skip if it is not.  */

      if (!CONSP (quit_keysym) || !FIXNUMP (XCDR (quit_keysym))
	  || !STRINGP (XCAR (quit_keysym)))
	continue;

      /* Check if this is the keysym to be used.  */

      if (strcmp (SSDATA (XCAR (quit_keysym)), ServerVendor (dpy)))
	continue;

      dpyinfo->quit_keysym = XFIXNUM (XCDR (quit_keysym));
    }

  /* Put this display on the chain.  */
  dpyinfo->next = x_display_list;
  x_display_list = dpyinfo;

  dpyinfo->name_list_element = Fcons (display_name, Qnil);
  dpyinfo->display = dpy;
  dpyinfo->connection = ConnectionNumber (dpyinfo->display);
#ifdef USE_XCB
  dpyinfo->xcb_connection = xcb_conn;
#endif

  /* https://lists.gnu.org/r/emacs-devel/2015-11/msg00194.html  */
  dpyinfo->smallest_font_height = 1;
  dpyinfo->smallest_char_width = 1;

  dpyinfo->color_names_size = 256;
  dpyinfo->color_names = xzalloc (dpyinfo->color_names_size
				  * sizeof *dpyinfo->color_names);
  dpyinfo->color_names_length = xzalloc (dpyinfo->color_names_size
					 * sizeof *dpyinfo->color_names_length);

  /* Set the name of the terminal. */
  terminal->name = xlispstrdup (display_name);

#if false
  XSetAfterFunction (dpyinfo->display, x_trace_wire);
#endif

  Lisp_Object system_name = Fsystem_name ();
  static char const title[] = "GNU Emacs";
  if (STRINGP (system_name))
    {
      static char const at[] = " at ";
      ptrdiff_t nbytes = sizeof (title) + sizeof (at);
      if (ckd_add (&nbytes, nbytes, SBYTES (system_name)))
	memory_full (SIZE_MAX);
      dpyinfo->x_id_name = xmalloc (nbytes);
      sprintf (dpyinfo->x_id_name, "%s%s%s", title, at, SDATA (system_name));
    }
  else
    {
      dpyinfo->x_id_name = xmalloc (sizeof (title));
      strcpy (dpyinfo->x_id_name, title);
    }

  dpyinfo->x_id = ++x_display_id;

#ifndef HAVE_XKB
  /* Figure out which modifier bits mean what.  */
  x_find_modifier_meanings (dpyinfo);
#endif

  /* Get the scroll bar cursor.  */
#ifdef USE_GTK
  /* We must create a GTK cursor, it is required for GTK widgets.  */
  dpyinfo->xg_cursor = xg_create_default_cursor (dpyinfo->display);
#endif /* USE_GTK */

  dpyinfo->vertical_scroll_bar_cursor
    = XCreateFontCursor (dpyinfo->display, XC_sb_v_double_arrow);

  dpyinfo->horizontal_scroll_bar_cursor
    = XCreateFontCursor (dpyinfo->display, XC_sb_h_double_arrow);

  xrdb = x_load_resources (dpyinfo->display, xrm_option,
			   resource_name, EMACS_CLASS);
#ifdef HAVE_XRMSETDATABASE
  XrmSetDatabase (dpyinfo->display, xrdb);
#else
  dpyinfo->display->db = xrdb;
#endif

#ifdef HAVE_XRENDER
  int event_base, error_base;
  dpyinfo->xrender_supported_p
    = XRenderQueryExtension (dpyinfo->display, &event_base, &error_base);

  if (dpyinfo->xrender_supported_p)
    dpyinfo->xrender_supported_p
      = XRenderQueryVersion (dpyinfo->display, &dpyinfo->xrender_major,
			     &dpyinfo->xrender_minor);
#endif

  /* This must come after XRenderQueryVersion! */
#ifdef HAVE_XCOMPOSITE
  int composite_event_base, composite_error_base;
  dpyinfo->composite_supported_p = XCompositeQueryExtension (dpyinfo->display,
							     &composite_event_base,
							     &composite_error_base);

  if (dpyinfo->composite_supported_p)
    dpyinfo->composite_supported_p
      = XCompositeQueryVersion (dpyinfo->display,
				&dpyinfo->composite_major,
				&dpyinfo->composite_minor);
#endif

#ifdef HAVE_XSHAPE
  dpyinfo->xshape_supported_p
    = XShapeQueryExtension (dpyinfo->display,
			    &dpyinfo->xshape_event_base,
			    &dpyinfo->xshape_error_base);

  if (dpyinfo->xshape_supported_p)
    dpyinfo->xshape_supported_p
      = XShapeQueryVersion (dpyinfo->display,
			    &dpyinfo->xshape_major,
			    &dpyinfo->xshape_minor);
#endif

  /* Put the rdb where we can find it in a way that works on
     all versions.  */
  dpyinfo->rdb = xrdb;

  dpyinfo->screen = ScreenOfDisplay (dpyinfo->display,
				     DefaultScreen (dpyinfo->display));
  select_visual (dpyinfo);
  dpyinfo->cmap = DefaultColormapOfScreen (dpyinfo->screen);
  dpyinfo->root_window = RootWindowOfScreen (dpyinfo->screen);
  dpyinfo->icon_bitmap_id = -1;
  dpyinfo->wm_type = X_WMTYPE_UNKNOWN;

  reset_mouse_highlight (&dpyinfo->mouse_highlight);

#ifdef HAVE_XRENDER
  if (dpyinfo->xrender_supported_p
      /* This could already have been initialized by
	 `select_visual'.  */
      && !dpyinfo->pict_format)
    dpyinfo->pict_format = XRenderFindVisualFormat (dpyinfo->display,
						    dpyinfo->visual);
#endif

#ifdef HAVE_XSYNC
  int xsync_event_base, xsync_error_base;
  dpyinfo->xsync_supported_p
    = XSyncQueryExtension (dpyinfo->display,
			   &xsync_event_base,
			   &xsync_error_base);

  if (dpyinfo->xsync_supported_p)
    dpyinfo->xsync_supported_p = XSyncInitialize (dpyinfo->display,
						  &dpyinfo->xsync_major,
						  &dpyinfo->xsync_minor);

  {
    AUTO_STRING (synchronizeResize, "synchronizeResize");
    AUTO_STRING (SynchronizeResize, "SynchronizeResize");

    Lisp_Object value = gui_display_get_resource (dpyinfo,
						  synchronizeResize,
						  SynchronizeResize,
						  Qnil, Qnil);

    if (STRINGP (value)
	&& (!strcmp (SSDATA (value), "false")
	    || !strcmp (SSDATA (value), "off")))
      dpyinfo->xsync_supported_p = false;
  }
#endif

#ifdef HAVE_XINERAMA
  int xin_event_base, xin_error_base;
  dpyinfo->xinerama_supported_p
    = XineramaQueryExtension (dpy, &xin_event_base, &xin_error_base);
#endif

  /* See if a private colormap is requested.  */
  if (dpyinfo->visual == DefaultVisualOfScreen (dpyinfo->screen))
    {
      if (dpyinfo->visual_info.class == PseudoColor)
	{
	  AUTO_STRING (privateColormap, "privateColormap");
	  AUTO_STRING (PrivateColormap, "PrivateColormap");
	  Lisp_Object value
	    = gui_display_get_resource (dpyinfo, privateColormap,
                                        PrivateColormap, Qnil, Qnil);
	  if (STRINGP (value)
	      && (!strcmp (SSDATA (value), "true")
		  || !strcmp (SSDATA (value), "on")))
	    dpyinfo->cmap = XCopyColormapAndFree (dpyinfo->display, dpyinfo->cmap);
	}
    }
  else
    dpyinfo->cmap = XCreateColormap (dpyinfo->display, dpyinfo->root_window,
                                     dpyinfo->visual, AllocNone);

  /* See if we can construct pixel values from RGB values.  */
  if (dpyinfo->visual_info.class == TrueColor)
    {
      get_bits_and_offset (dpyinfo->visual_info.red_mask,
                           &dpyinfo->red_bits, &dpyinfo->red_offset);
      get_bits_and_offset (dpyinfo->visual_info.blue_mask,
                           &dpyinfo->blue_bits, &dpyinfo->blue_offset);
      get_bits_and_offset (dpyinfo->visual_info.green_mask,
                           &dpyinfo->green_bits, &dpyinfo->green_offset);

#ifdef HAVE_XRENDER
      if (dpyinfo->pict_format)
	{
	  unsigned long channel_mask
	    = ((unsigned long) dpyinfo->pict_format->direct.alphaMask
	       << dpyinfo->pict_format->direct.alpha);

	  if (channel_mask)
	    get_bits_and_offset (channel_mask, &dpyinfo->alpha_bits,
				 &dpyinfo->alpha_offset);
	  dpyinfo->alpha_mask = channel_mask;
	}
      else
#endif
	{
	  XColor xc;
	  unsigned long alpha_mask;
	  xc.red = 65535;
	  xc.green = 65535;
	  xc.blue = 65535;

	  if (XAllocColor (dpyinfo->display,
			   dpyinfo->cmap, &xc) != 0)
	    {
	      alpha_mask = xc.pixel & ~(dpyinfo->visual_info.red_mask
					| dpyinfo->visual_info.blue_mask
					| dpyinfo->visual_info.green_mask);

	      if (alpha_mask)
		get_bits_and_offset (alpha_mask, &dpyinfo->alpha_bits,
				     &dpyinfo->alpha_offset);
	      dpyinfo->alpha_mask = alpha_mask;
	    }
	}
    }

#ifdef HAVE_XDBE
  dpyinfo->supports_xdbe = false;
  int xdbe_major;
  int xdbe_minor;
  if (XdbeQueryExtension (dpyinfo->display, &xdbe_major, &xdbe_minor))
    dpyinfo->supports_xdbe = true;
#endif

#ifdef USE_XCB
  xcb_screen_t *xcb_screen = NULL;
  xcb_screen_iterator_t iter;
  xcb_visualid_t wanted = { XVisualIDFromVisual (dpyinfo->visual) };
  xcb_depth_iterator_t depth_iter;
  xcb_visualtype_iterator_t visual_iter;

  int screen = DefaultScreen (dpyinfo->display);

  iter = xcb_setup_roots_iterator (xcb_get_setup (dpyinfo->xcb_connection));
  for (; iter.rem; --screen, xcb_screen_next (&iter))
    {
      if (!screen)
	xcb_screen = iter.data;
    }

  if (xcb_screen)
    {
      depth_iter = xcb_screen_allowed_depths_iterator (xcb_screen);
      for (; depth_iter.rem; xcb_depth_next (&depth_iter))
	{
	  visual_iter = xcb_depth_visuals_iterator (depth_iter.data);
	  for (; visual_iter.rem; xcb_visualtype_next (&visual_iter))
	    {
	      if (wanted == visual_iter.data->visual_id)
		{
		  dpyinfo->xcb_visual = visual_iter.data;
		  break;
		}
	    }
	}
    }
#endif

#ifdef HAVE_XINPUT2
  dpyinfo->supports_xi2 = false;
  int rc;
  int major = 2;
  int xi_first_event, xi_first_error;

#ifndef HAVE_GTK3
  {
    AUTO_STRING (disableInputExtension, "disableInputExtension");
    AUTO_STRING (DisableInputExtension, "DisableInputExtension");

    Lisp_Object value = gui_display_get_resource (dpyinfo,
						  disableInputExtension,
						  DisableInputExtension,
						  Qnil, Qnil);

    if (STRINGP (value)
	&& (!strcmp (SSDATA (value), "on")
	    || !strcmp (SSDATA (value), "true")))
      goto skip_xi_setup;
  }
#endif

#ifdef HAVE_XINPUT2_4
  int minor = 4;
#elif defined HAVE_XINPUT2_3 /* XInput 2.3 */
  int minor = 3;
#elif defined HAVE_XINPUT2_2 /* XInput 2.2 */
  int minor = 2;
#elif defined HAVE_XINPUT2_1 /* XInput 2.1 */
  int minor = 1;
#else /* Some old version of XI2 we're not interested in. */
  int minor = 0;
#endif

  dpyinfo->client_pointer_device = -1;

#ifdef HAVE_GTK3
  /* GTK gets a chance to request use of the input extension first.
     If we later try to enable it if GDK did not, then GTK will not
     get the resulting extension events.  */

  rc = xi_check_toolkit (dpyinfo->display);

  if (!rc)
    goto skip_xi_setup;
#endif

  if (XQueryExtension (dpyinfo->display, "XInputExtension",
		       &dpyinfo->xi2_opcode, &xi_first_event,
		       &xi_first_error))
    {
#ifdef HAVE_GTK3
      bool move_backwards = false;
      int original_minor = minor;

    query:

      /* Catch errors caused by GTK requesting a different version of
	 XInput 2 than what Emacs was built with.  Usually, the X
	 server tolerates these mistakes, but a BadValue error can
	 result if only one of GTK or Emacs wasn't built with support
	 for XInput 2.2.

	 To work around the first, it suffices to increase the minor
	 version until the X server is happy if the XIQueryVersion
	 request results in an error.  If that doesn't work, however,
	 then it's the latter, so decrease the minor until the version
	 that GTK requested is found.  */
#endif

      x_catch_errors (dpyinfo->display);

      rc = XIQueryVersion (dpyinfo->display, &major, &minor);

#ifdef HAVE_GTK3
      /* Increase the minor version until we find one the X
	 server agrees with.  If that didn't work, then
	 decrease the version until it either hits zero or
	 becomes agreeable to the X server.  */

      if (x_had_errors_p (dpyinfo->display))
	{
	  x_uncatch_errors_after_check ();

	  /* Since BadValue errors can't be generated if both the
	     prior and current requests specify a version of 2.2 or
	     later, this means the prior request specified a version
	     of the input extension less than 2.2.  */
	  if (minor >= 2)
	    {
	      move_backwards = true;
	      minor = original_minor;

	      if (--minor < 0)
		rc = BadRequest;
	      else
		goto query;
	    }
	  else
	    {
	      if (!move_backwards)
		{
		  minor++;
		  goto query;
		}

	      if (--minor < 0)
		rc = BadRequest;
	      else
		goto query;

	    }
	}
      else
	x_uncatch_errors_after_check ();

      /* But don't delude ourselves into thinking that we can use
	 features provided by a version of the input extension that
	 libXi itself doesn't support.  */

      if (minor > original_minor)
	minor = original_minor;
#else
      if (x_had_errors_p (dpyinfo->display))
	rc = BadRequest;

      x_uncatch_errors_after_check ();
#endif

      if (rc == Success)
	{
	  dpyinfo->supports_xi2 = true;
#ifndef HAVE_GTK3
	  /* Select for hierarchy events on the root window.  GTK 3.x
	     does this itself.  */
	  xi_select_hierarchy_events (dpyinfo);
#endif

	  dpyinfo->xi2_version = minor;
	  x_cache_xi_devices (dpyinfo);
	}
    }
 skip_xi_setup:
  ;
#endif

#if defined HAVE_XRANDR || defined USE_GTK
  Lisp_Object term;

  XSETTERMINAL (term, terminal);
#endif

#ifdef HAVE_XRANDR
  dpyinfo->xrandr_supported_p
    = XRRQueryExtension (dpy, &dpyinfo->xrandr_event_base,
			 &dpyinfo->xrandr_error_base);

#ifndef USE_GTK
  dpyinfo->last_monitor_attributes_list = Qnil;
#endif

  if (dpyinfo->xrandr_supported_p)
    {
      XRRQueryVersion (dpy, &dpyinfo->xrandr_major_version,
		       &dpyinfo->xrandr_minor_version);

#ifndef USE_GTK
      if (dpyinfo->xrandr_major_version == 1
	  && dpyinfo->xrandr_minor_version >= 2)
	{
	  XRRSelectInput (dpyinfo->display,
			  dpyinfo->root_window,
			  (RRScreenChangeNotifyMask
			   | RRCrtcChangeNotifyMask
			   | RROutputChangeNotifyMask
#ifdef USE_GTK
			   /* Emacs doesn't actually need this, but
			      GTK selects for it when the display is
			      initialized.  */
			   | RROutputPropertyNotifyMask
#endif
			   ));

	  dpyinfo->last_monitor_attributes_list
	    = Fx_display_monitor_attributes_list (term);
	}
#endif
    }
#endif

#ifdef USE_GTK
  dpyinfo->last_monitor_attributes_list
    = Fx_display_monitor_attributes_list (term);

  gdpy = gdk_x11_lookup_xdisplay (dpyinfo->display);
  gscr = gdk_display_get_default_screen (gdpy);

  g_signal_connect (G_OBJECT (gscr), "monitors-changed",
		    G_CALLBACK (x_monitors_changed_cb),
		    NULL);
#endif

#ifdef HAVE_XKB
  int xkb_major, xkb_minor, xkb_op, xkb_error_code;
  xkb_major = XkbMajorVersion;
  xkb_minor = XkbMinorVersion;

  if (XkbLibraryVersion (&xkb_major, &xkb_minor)
      && XkbQueryExtension (dpyinfo->display, &xkb_op, &dpyinfo->xkb_event_type,
			    &xkb_error_code, &xkb_major, &xkb_minor))
    {
      dpyinfo->supports_xkb = true;
      dpyinfo->xkb_desc = XkbGetMap (dpyinfo->display,
				     (XkbKeySymsMask
				      | XkbKeyTypesMask
				      | XkbModifierMapMask
				      | XkbVirtualModsMask),
				     XkbUseCoreKbd);

      if (dpyinfo->xkb_desc)
	XkbGetNames (dpyinfo->display, XkbAllNamesMask,
		     dpyinfo->xkb_desc);

      XkbSelectEvents (dpyinfo->display, XkbUseCoreKbd,
		       XkbNewKeyboardNotifyMask | XkbMapNotifyMask,
		       XkbNewKeyboardNotifyMask | XkbMapNotifyMask);
    }

  /* XFree86 extends XKBlib with a new Xlib control `ControlFallback',
     which enables a search for symbols designating ASCII characters
     within inactive groups during keycode translation when
     ControlMask is set.  Users find this behavior gratuitous, so
     disable it if present.  */

#ifdef XkbLC_ControlFallback
  XkbSetXlibControls (dpyinfo->display, XkbLC_ControlFallback, 0);
#endif /* XkbLC_ControlFallback */
#endif /* HAVE_XKB */

#ifdef HAVE_XFIXES
  int xfixes_error_base;
  dpyinfo->xfixes_supported_p
    = XFixesQueryExtension (dpyinfo->display,
			    &dpyinfo->xfixes_event_base,
			    &xfixes_error_base);

  if (dpyinfo->xfixes_supported_p)
    {
      if (!XFixesQueryVersion (dpyinfo->display, &dpyinfo->xfixes_major,
			       &dpyinfo->xfixes_minor))
	dpyinfo->xfixes_supported_p = false;
    }
#endif

#if defined USE_CAIRO || defined HAVE_XFT
  {
    /* If we are using Xft, the following precautions should be made:

       1. Make sure that the Xrender extension is added before the Xft one.
       Otherwise, the close-display hook set by Xft is called after the one
       for Xrender, and the former tries to re-add the latter.  This results
       in inconsistency of internal states and leads to X protocol error when
       one reconnects to the same X server (Bug#1696).

       2. Check dpi value in X resources.  It is better we use it as well,
       since Xft will use it, as will all Gnome applications.  If our real DPI
       is smaller or larger than the one Xft uses, our font will look smaller
       or larger than other for other applications, even if it is the same
       font name (monospace-10 for example).  */

    char *v = XGetDefault (dpyinfo->display, "Xft", "dpi");
    double d;
    if (v != NULL && sscanf (v, "%lf", &d) == 1)
      dpyinfo->resy = dpyinfo->resx = d;
  }
#endif

  if (dpyinfo->resy < 1)
    {
      int screen_number = XScreenNumberOfScreen (dpyinfo->screen);
      double pixels = DisplayHeight (dpyinfo->display, screen_number);
      double mm = DisplayHeightMM (dpyinfo->display, screen_number);
      /* Mac OS X 10.3's Xserver sometimes reports 0.0mm.  */
      dpyinfo->resy = (mm < 1) ? 100 : pixels * 25.4 / mm;
      pixels = DisplayWidth (dpyinfo->display, screen_number);
      mm = DisplayWidthMM (dpyinfo->display, screen_number);
      /* Mac OS X 10.3's Xserver sometimes reports 0.0mm.  */
      dpyinfo->resx = (mm < 1) ? 100 : pixels * 25.4 / mm;
    }

  sprintf (cm_atom_sprintf, cm_atom_fmt,
	   XScreenNumberOfScreen (dpyinfo->screen));

  {
    enum { atom_count = ARRAYELTS (x_atom_refs) };
    /* 1 for _XSETTINGS_SN.  */
    enum { total_atom_count = 2 + atom_count };
    Atom atoms_return[total_atom_count];
    char *atom_names[total_atom_count];
    static char const xsettings_fmt[] = "_XSETTINGS_S%d";
    char xsettings_atom_name[sizeof xsettings_fmt - 2
			     + INT_STRLEN_BOUND (int)];

    for (i = 0; i < atom_count; i++)
      atom_names[i] = (char *) x_atom_refs[i].name;

    /* Build _XSETTINGS_SN atom name.  */
    sprintf (xsettings_atom_name, xsettings_fmt,
	     XScreenNumberOfScreen (dpyinfo->screen));
    atom_names[i] = xsettings_atom_name;
    atom_names[i + 1] = cm_atom_sprintf;

    XInternAtoms (dpyinfo->display, atom_names, total_atom_count,
                  False, atoms_return);

    for (i = 0; i < atom_count; i++)
      *(Atom *) ((char *) dpyinfo + x_atom_refs[i].offset) = atoms_return[i];

    /* Manually copy last two atoms.  */
    dpyinfo->Xatom_xsettings_sel = atoms_return[i];
    dpyinfo->Xatom_NET_WM_CM_Sn = atoms_return[i + 1];
  }

#ifdef HAVE_XKB
  /* Figure out which modifier bits mean what.  */
  x_find_modifier_meanings (dpyinfo);
#endif

  dpyinfo->x_dnd_atoms_size = 16;
  dpyinfo->x_dnd_atoms = xmalloc (sizeof *dpyinfo->x_dnd_atoms
                                  * dpyinfo->x_dnd_atoms_size);
  dpyinfo->gray
    = XCreatePixmapFromBitmapData (dpyinfo->display, dpyinfo->root_window,
				   gray_bits, gray_width, gray_height,
				   1, 0, 1);

  dpyinfo->invisible_cursor = make_invisible_cursor (dpyinfo);
#if defined HAVE_XFIXES && XFIXES_VERSION >= 40000
  dpyinfo->fixes_pointer_blanking = (egetenv ("EMACS_XFIXES") != NULL);
#endif

  xsettings_initialize (dpyinfo);

  /* This is only needed for distinguishing keyboard and process input.  */
  if (dpyinfo->connection != 0)
    add_keyboard_wait_descriptor (dpyinfo->connection);

#ifdef F_SETOWN
  fcntl (dpyinfo->connection, F_SETOWN, getpid ());
#endif /* ! defined (F_SETOWN) */

  if (interrupt_input)
    init_sigio (dpyinfo->connection);

#ifdef USE_LUCID
  {
    XrmValue d, fr, to;
    Font font;
    XFontStruct *query_result;

    dpy = dpyinfo->display;
    d.addr = (XPointer) &dpy;
    d.size = sizeof (Display *);
    fr.addr = (char *) XtDefaultFont;
    fr.size = sizeof (XtDefaultFont);
    to.size = sizeof (Font *);
    to.addr = (XPointer) &font;
    x_catch_errors (dpy);
    if (!XtCallConverter (dpy, XtCvtStringToFont, &d, 1, &fr, &to, NULL))
      emacs_abort ();
    query_result = XQueryFont (dpy, font);

    /* Set the dialog font to some fallback (here, 9x15) if the font
       specified is invalid.  */
    if (x_had_errors_p (dpy) || !font)
      XrmPutLineResource (&xrdb, "Emacs.dialog.*.font: 9x15");

    /* Do not destroy the font struct returned above with XFreeFont;
       that also destroys the font, leading to X protocol errors at
       XtCloseDisplay.  Just free the font info structure.
       (Bug#18403) */
    XFreeFontInfo (NULL, query_result, 1);
    x_uncatch_errors ();
  }
#endif

  /* See if we should run in synchronous mode.  This is useful
     for debugging X code.  */
  {
    AUTO_STRING (synchronous, "synchronous");
    AUTO_STRING (Synchronous, "Synchronous");
    Lisp_Object value = gui_display_get_resource (dpyinfo, synchronous,
                                                  Synchronous, Qnil, Qnil);
    if (STRINGP (value)
	&& (!strcmp (SSDATA (value), "true")
	    || !strcmp (SSDATA (value), "on")))
      XSynchronize (dpyinfo->display, True);
  }

#ifdef HAVE_X_I18N
  {
    AUTO_STRING (useXIM, "useXIM");
    AUTO_STRING (UseXIM, "UseXIM");
    Lisp_Object value = gui_display_get_resource (dpyinfo, useXIM, UseXIM,
                                                  Qnil, Qnil);

    /* `USE_XIM' controls whether Emacs should use X input methods by
       default, not whether or not XIM is available.  */

#ifdef USE_XIM
    dpyinfo->use_xim = true;

    if (STRINGP (value)
	&& (!strcmp (SSDATA (value), "false")
	    || !strcmp (SSDATA (value), "off")))
      dpyinfo->use_xim = false;
#else /* !USE_XIM */
    dpyinfo->use_xim = false;

    if (STRINGP (value)
	&& (!strcmp (SSDATA (value), "true")
	    || !strcmp (SSDATA (value), "on")))
      dpyinfo->use_xim = true;
#endif /* USE_XIM */
  }

  {
    AUTO_STRING (inputStyle, "inputStyle");
    AUTO_STRING (InputStyle, "InputStyle");
    Lisp_Object value = gui_display_get_resource (dpyinfo, inputStyle, InputStyle,
						  Qnil, Qnil);

    if (STRINGP (value))
      {
	if (!strcmp (SSDATA (value), "callback"))
	  dpyinfo->preferred_xim_style = STYLE_CALLBACK;
	else if (!strcmp (SSDATA (value), "none"))
	  dpyinfo->preferred_xim_style = STYLE_NONE;
	else if (!strcmp (SSDATA (value), "overthespot"))
	  dpyinfo->preferred_xim_style = STYLE_OVERTHESPOT;
	else if (!strcmp (SSDATA (value), "offthespot"))
	  dpyinfo->preferred_xim_style = STYLE_OFFTHESPOT;
	else if (!strcmp (SSDATA (value), "root"))
	  dpyinfo->preferred_xim_style = STYLE_ROOT;
#ifdef USE_GTK
	else if (!strcmp (SSDATA (value), "native"))
	  dpyinfo->prefer_native_input = true;
#endif /* HAVE_GTK */
      }
  }

  /* Now that defaults have been set up, initialize input method
     support.  */

  /* Avoid initializing input methods if the X library does not
     support Emacs's locale.  When the current locale is not
     supported, decoding input method strings becomes undefined.  */
  if (XSupportsLocale ())
    xim_initialize (dpyinfo, resource_name);
#endif /* HAVE_X_I18N */

#ifdef HAVE_X_SM
  /* Only do this for the very first display in the Emacs session.
     Ignore X session management when Emacs was first started on a
     tty or started as a daemon.  */
  if (!dpyinfo->next && ! IS_DAEMON)
    x_session_initialize (dpyinfo);
#endif

#if defined USE_CAIRO || defined HAVE_XRENDER
  x_extension_initialize (dpyinfo);
#endif

#ifdef USE_TOOLKIT_SCROLL_BARS
  dpyinfo->protected_windows = xmalloc (sizeof (Lisp_Object) * 256);
  dpyinfo->n_protected_windows = 0;
  dpyinfo->protected_windows_max = 256;
#endif

#ifdef HAVE_XFIXES
  /* Initialize selection tracking for the selections in
     x-fast-selection-list.  */

  if (CONSP (Vx_fast_selection_list)
      && dpyinfo->xfixes_supported_p
      && dpyinfo->xfixes_major >= 1)
    {
      num_fast_selections = 0;
      tem = Vx_fast_selection_list;

      FOR_EACH_TAIL_SAFE (tem)
	{
	  if (!SYMBOLP (XCAR (tem)))
	    continue;

	  num_fast_selections++;
	}

      dpyinfo->n_monitored_selections = num_fast_selections;
      dpyinfo->selection_tracking_window
	= x_create_special_window (dpyinfo, dpyinfo->root_window);
      dpyinfo->monitored_selections
	= xmalloc (num_fast_selections
		   * sizeof *dpyinfo->monitored_selections);

      num_fast_selections = 0;
      tem = Vx_fast_selection_list;

      FOR_EACH_TAIL_SAFE (tem)
	{
	  lisp_name = XCAR (tem);

	  if (!SYMBOLP (lisp_name))
	    continue;

	  selection_name = symbol_to_x_atom (dpyinfo, lisp_name);
	  dpyinfo->monitored_selections[num_fast_selections++].name
	    = selection_name;
	  dpyinfo->monitored_selections[num_fast_selections - 1].owner
	    = X_INVALID_WINDOW;

	  /* Select for selection input.  */
	  XFixesSelectSelectionInput (dpyinfo->display,
				      dpyinfo->selection_tracking_window,
				      selection_name,
				      (XFixesSetSelectionOwnerNotifyMask
				       | XFixesSelectionClientCloseNotifyMask));
	}

#ifdef USE_XCB
      selection_cookies = SAFE_ALLOCA (sizeof *selection_cookies
				       * num_fast_selections);
#endif

      /* Now, ask for the current owners of all those selections.  */
      for (i = 0; i < num_fast_selections; ++i)
	{
#ifdef USE_XCB
	  selection_cookies[i]
	    = xcb_get_selection_owner (dpyinfo->xcb_connection,
				       dpyinfo->monitored_selections[i].name);
#else
	  dpyinfo->monitored_selections[i].owner
	    = XGetSelectionOwner (dpyinfo->display,
				  dpyinfo->monitored_selections[i].name);
#endif
	}

#ifdef USE_XCB
      for (i = 0; i < num_fast_selections; ++i)
	{
	  selection_reply
	    = xcb_get_selection_owner_reply (dpyinfo->xcb_connection,
					     selection_cookies[i],
					     &selection_error);

	  if (selection_reply)
	    {
	      dpyinfo->monitored_selections[i].owner
		= selection_reply->owner;
	      free (selection_reply);
	    }
	  else if (selection_error)
	    free (selection_error);
	}
#endif
    }
#endif

  unblock_input ();

#if defined HAVE_XFIXES && defined USE_XCB
  SAFE_FREE ();
#endif
  return dpyinfo;
}

\f

/* Remove all the selection input events on the keyboard buffer
   intended for DPYINFO.  */

static void
x_delete_selection_requests (struct x_display_info *dpyinfo)
{
  union buffered_input_event *event;
  int moved_events;

  for (event = kbd_fetch_ptr; event != kbd_store_ptr;
       event = X_NEXT_KBD_EVENT (event))
    {
      if (event->kind == SELECTION_REQUEST_EVENT
	  || event->kind == SELECTION_CLEAR_EVENT)
	{
	  if (SELECTION_EVENT_DPYINFO (&event->sie) != dpyinfo)
	    continue;

	  /* Remove the event from the fifo buffer before processing;
	     otherwise swallow_events called recursively could see it
	     and process it again.  To do this, we move the events
	     between kbd_fetch_ptr and EVENT one slot to the right,
	     cyclically.  */

	  if (event < kbd_fetch_ptr)
	    {
	      memmove (kbd_buffer + 1, kbd_buffer,
		       (event - kbd_buffer) * sizeof *kbd_buffer);
	      kbd_buffer[0] = kbd_buffer[KBD_BUFFER_SIZE - 1];
	      moved_events = kbd_buffer + KBD_BUFFER_SIZE - 1 - kbd_fetch_ptr;
	    }
	  else
	    moved_events = event - kbd_fetch_ptr;

	  memmove (kbd_fetch_ptr + 1, kbd_fetch_ptr,
		   moved_events * sizeof *kbd_fetch_ptr);
	  kbd_fetch_ptr = X_NEXT_KBD_EVENT (kbd_fetch_ptr);

	  /* `detect_input_pending' will then recompute whether or not
	     pending input events exist.  */
	  input_pending = false;
	}
    }
}

/* Get rid of display DPYINFO, deleting all frames on it,
   and without sending any more commands to the X server.  */

static void
x_delete_display (struct x_display_info *dpyinfo)
{
  struct terminal *t;
  struct color_name_cache_entry *color_entry, *next_color_entry;
  int i;
  struct x_selection_request_event *ie, *last, *temp;

  /* Close all frames and delete the generic struct terminal for this
     X display.  */
  for (t = terminal_list; t; t = t->next_terminal)
    if (t->type == output_x_window && t->display_info.x == dpyinfo)
      {
#ifdef HAVE_X_SM
        /* Close X session management when we close its display.  */
        if (t->id == 1 && x_session_have_connection ())
          x_session_close ();
#endif
        delete_terminal (t);
        break;
      }

  /* Find any pending selection requests for this display and unchain
     them.  */

  last = NULL;

  for (ie = pending_selection_requests; ie; ie = ie->next)
    {
    again:

      if (SELECTION_EVENT_DPYINFO (&ie->se) == dpyinfo)
	{
	  if (last)
	    last->next = ie->next;

	  temp = ie;
	  ie = ie->next;
	  xfree (temp);

	  goto again;
	}

      last = ie;
    }

  /* Delete selection requests bound for dpyinfo from the keyboard
     buffer.  */
  x_delete_selection_requests (dpyinfo);

  /* And remove any outstanding selection transfers.  */
  x_remove_selection_transfers (dpyinfo);

  if (next_noop_dpyinfo == dpyinfo)
    next_noop_dpyinfo = dpyinfo->next;

  if (mouse_click_timeout_display == dpyinfo)
    mouse_click_timeout_display = NULL;

  if (x_display_list == dpyinfo)
    x_display_list = dpyinfo->next;
  else
    {
      struct x_display_info *tail;

      for (tail = x_display_list; tail; tail = tail->next)
	if (tail->next == dpyinfo)
	  tail->next = tail->next->next;
    }

  for (i = 0; i < dpyinfo->color_names_size; ++i)
    {
      for (color_entry = dpyinfo->color_names[i];
	   color_entry; color_entry = next_color_entry)
	{
	  next_color_entry = color_entry->next;

	  xfree (color_entry->name);
	  xfree (color_entry);
	}
    }

  if (dpyinfo->net_supported_atoms)
    XFree (dpyinfo->net_supported_atoms);

  xfree (dpyinfo->color_names);
  xfree (dpyinfo->color_names_length);
  xfree (dpyinfo->x_id_name);
  xfree (dpyinfo->x_dnd_atoms);
  xfree (dpyinfo->color_cells);
#ifdef HAVE_XFIXES
  if (dpyinfo->monitored_selections)
    xfree (dpyinfo->monitored_selections);
#endif
#ifdef USE_TOOLKIT_SCROLL_BARS
  xfree (dpyinfo->protected_windows);
#endif
#ifdef HAVE_XINPUT2
  if (dpyinfo->supports_xi2)
    x_free_xi_devices (dpyinfo);
#endif
  xfree (dpyinfo);
}

#ifdef USE_X_TOOLKIT

/* Atimer callback function for TIMER.  Called every 0.1s to process
   Xt timeouts, if needed.  We must avoid calling XtAppPending as
   much as possible because that function does an implicit XFlush
   that slows us down.  */

static void
x_process_timeouts (struct atimer *timer)
{
  block_input ();
  x_timeout_atimer_activated_flag = false;
  if (toolkit_scroll_bar_interaction || popup_activated ())
    {
      while (XtAppPending (Xt_app_con) & XtIMTimer)
	XtAppProcessEvent (Xt_app_con, XtIMTimer);
      /* Reactivate the atimer for next time.  */
      x_activate_timeout_atimer ();
    }
  unblock_input ();
}

/* Install an asynchronous timer that processes Xt timeout events
   every 0.1s as long as either `toolkit_scroll_bar_interaction' or
   `popup_activated_flag' (in xmenu.c) is set.  Make sure to call this
   function whenever these variables are set.  This is necessary
   because some widget sets use timeouts internally, for example the
   LessTif menu bar, or the Xaw3d scroll bar.  When Xt timeouts aren't
   processed, these widgets don't behave normally.  */

void
x_activate_timeout_atimer (void)
{
  block_input ();
  if (!x_timeout_atimer_activated_flag)
    {
      struct timespec interval = make_timespec (0, 100 * 1000 * 1000);
      start_atimer (ATIMER_RELATIVE, interval, x_process_timeouts, 0);
      x_timeout_atimer_activated_flag = true;
    }
  unblock_input ();
}

#endif /* USE_X_TOOLKIT */

\f
/* Set up use of X before we make the first connection.  */

extern frame_parm_handler x_frame_parm_handlers[];

static struct redisplay_interface x_redisplay_interface =
  {
    x_frame_parm_handlers,
    gui_produce_glyphs,
    gui_write_glyphs,
    gui_insert_glyphs,
    gui_clear_end_of_line,
    x_scroll_run,
    x_after_update_window_line,
    NULL, /* update_window_begin */
    NULL, /* update_window_end   */
    x_flip_and_flush,
    gui_clear_window_mouse_face,
    gui_get_glyph_overhangs,
    gui_fix_overlapping_area,
    x_draw_fringe_bitmap,
#ifdef USE_CAIRO
    x_cr_define_fringe_bitmap,
    x_cr_destroy_fringe_bitmap,
#else
    0, /* define_fringe_bitmap */
    0, /* destroy_fringe_bitmap */
#endif
    x_compute_glyph_string_overhangs,
    x_draw_glyph_string,
    x_define_frame_cursor,
    x_clear_frame_area,
    x_clear_under_internal_border,
    x_draw_window_cursor,
    x_draw_vertical_window_border,
    x_draw_window_divider,
    x_shift_glyphs_for_insert, /* Never called; see comment in function.  */
    x_show_hourglass,
    x_hide_hourglass,
    x_default_font_parameter
  };


/* This function is called when the last frame on a display is deleted. */
void
x_delete_terminal (struct terminal *terminal)
{
  struct x_display_info *dpyinfo;
  struct frame *f;
  Lisp_Object tail, frame;

  dpyinfo = terminal->display_info.x;

  /* Protect against recursive calls.  delete_frame in
     delete_terminal calls us back when it deletes our last frame.  */
  if (!terminal->name)
    return;

  block_input ();

  /* Delete all remaining frames on the display that is going away.
     Otherwise, font backends assume the display is still up, and
     xftfont_end_for_frame crashes.  */
  FOR_EACH_FRAME (tail, frame)
    {
      f = XFRAME (frame);

      if (FRAME_LIVE_P (f) && f->terminal == terminal)
	/* Pass Qnoelisp rather than Qt.  */
	delete_frame (frame, Qnoelisp);
    }

#ifdef HAVE_X_I18N
  /* We must close our connection to the XIM server before closing the
     X display.  */
  xim_close_dpy (dpyinfo);
#endif

  /* Destroy all bitmap images created on the display.  */
  image_destroy_all_bitmaps (dpyinfo);

  /* Free the storage allocated to hold bitmap records.  */
  xfree (dpyinfo->bitmaps);

  /* In case someone decides to use `bitmaps' again... */
  dpyinfo->bitmaps = NULL;
  dpyinfo->bitmaps_last = 0;

  /* Normally, the display is available...  */
  if (dpyinfo->display)
    {
      XSetCloseDownMode (dpyinfo->display, DestroyAll);

      /* Delete the scratch cursor GC, should it exist.  */
      if (dpyinfo->scratch_cursor_gc)
	XFreeGC (dpyinfo->display, dpyinfo->scratch_cursor_gc);

      /* Get rid of any drag-and-drop operation that might be in
	 progress as well.  */
      if ((x_dnd_in_progress || x_dnd_waiting_for_finish)
	  && dpyinfo->display == (x_dnd_waiting_for_finish
				  ? x_dnd_finish_display
				  : FRAME_X_DISPLAY (x_dnd_frame)))
	{
	  x_dnd_last_seen_window = None;
	  x_dnd_last_seen_toplevel = None;
	  x_dnd_in_progress = false;
	  x_dnd_waiting_for_finish = false;

	  /* The display is going away, so there's no point in
	     de-selecting for input on the DND toplevels.  */
	  if (x_dnd_use_toplevels)
	    x_dnd_free_toplevels (false);

	  x_dnd_return_frame_object = NULL;
	  x_dnd_movement_frame = NULL;
	  x_dnd_wheel_frame = NULL;
	  x_dnd_frame = NULL;
	}

      /* Whether or not XCloseDisplay destroys the associated resource
	 database depends on the version of libX11.  To avoid both
	 crash and memory leak, we dissociate the database from the
	 display and then destroy dpyinfo->rdb ourselves.

	 Unfortunately, the above strategy does not work in some
	 situations due to a bug in newer versions of libX11: because
	 XrmSetDatabase doesn't clear the flag XlibDisplayDfltRMDB if
	 dpy->db is NULL, XCloseDisplay destroys the associated
	 database whereas it has not been created by XGetDefault
	 (Bug#21974 in freedesktop.org Bugzilla).  As a workaround, we
	 don't destroy the database here in order to avoid the crash
	 in the above situations for now, though that may cause memory
	 leaks in other situations.  */
#if false
#ifdef HAVE_XRMSETDATABASE
      XrmSetDatabase (dpyinfo->display, NULL);
#else
      dpyinfo->display->db = NULL;
#endif
      /* We used to call XrmDestroyDatabase from x_delete_display, but
	 some older versions of libX11 crash if we call it after
	 closing all the displays.  */
      XrmDestroyDatabase (dpyinfo->rdb);
#endif
#ifdef USE_GTK
      xg_display_close (dpyinfo->display);
#else
#ifdef USE_X_TOOLKIT
      XtCloseDisplay (dpyinfo->display);
#else
      XCloseDisplay (dpyinfo->display);
#endif
#endif /* ! USE_GTK */
      /* Do not close the connection here because it's already closed
	 by X(t)CloseDisplay (Bug#18403).  */
      dpyinfo->display = NULL;
    }

  /* ...but if called from x_connection_closed, the display may already
     be closed and dpyinfo->display was set to 0 to indicate that.  Since
     X server is most likely gone, explicit close is the only reliable
     way to continue and avoid Bug#19147.  */
  else if (dpyinfo->connection >= 0)
    emacs_close (dpyinfo->connection);

  /* Free the keyboard and modifier maps here; that is safe to do
     without a display, and not doing so leads to a lot of data being
     leaked upon IO error.  */

#ifdef HAVE_XKB
  if (dpyinfo->xkb_desc)
    XkbFreeKeyboard (dpyinfo->xkb_desc, XkbAllComponentsMask, True);
#endif

  if (dpyinfo->modmap)
    XFreeModifiermap (dpyinfo->modmap);

  /* No more input on this descriptor.  */
  delete_keyboard_wait_descriptor (dpyinfo->connection);
  /* Mark as dead. */
  dpyinfo->connection = -1;

  x_delete_display (dpyinfo);
  unblock_input ();
}

#ifdef HAVE_XINPUT2
static bool
x_have_any_grab (struct x_display_info *dpyinfo)
{
  int i;

  if (!dpyinfo->supports_xi2)
    return false;

  for (i = 0; i < dpyinfo->num_devices; ++i)
    {
      if (dpyinfo->devices[i].grab)
	return true;
    }

  return false;
}
#endif

/* Create a struct terminal, initialize it with the X11 specific
   functions and make DISPLAY->TERMINAL point to it.  */

static struct terminal *
x_create_terminal (struct x_display_info *dpyinfo)
{
  struct terminal *terminal;

  terminal = create_terminal (output_x_window, &x_redisplay_interface);

  terminal->display_info.x = dpyinfo;
  dpyinfo->terminal = terminal;

  /* kboard is initialized in x_term_init. */

  terminal->clear_frame_hook = x_clear_frame;
  terminal->ins_del_lines_hook = x_ins_del_lines;
  terminal->delete_glyphs_hook = x_delete_glyphs;
  terminal->ring_bell_hook = XTring_bell;
  terminal->toggle_invisible_pointer_hook = XTtoggle_invisible_pointer;
  terminal->update_begin_hook = x_update_begin;
  terminal->update_end_hook = x_update_end;
  terminal->read_socket_hook = XTread_socket;
  terminal->frame_up_to_date_hook = XTframe_up_to_date;
#ifdef HAVE_XDBE
  terminal->buffer_flipping_unblocked_hook = XTbuffer_flipping_unblocked_hook;
#endif
  terminal->defined_color_hook = x_defined_color;
  terminal->query_frame_background_color = x_query_frame_background_color;
  terminal->query_colors = x_query_colors;
  terminal->mouse_position_hook = XTmouse_position;
  terminal->get_focus_frame = x_get_focus_frame;
  terminal->focus_frame_hook = x_focus_frame;
  terminal->frame_rehighlight_hook = XTframe_rehighlight;
  terminal->frame_raise_lower_hook = XTframe_raise_lower;
  terminal->frame_visible_invisible_hook = x_make_frame_visible_invisible;
  terminal->fullscreen_hook = XTfullscreen_hook;
  terminal->iconify_frame_hook = x_iconify_frame;
  terminal->set_window_size_hook = x_set_window_size;
  terminal->set_frame_offset_hook = x_set_offset;
  terminal->set_frame_alpha_hook = x_set_frame_alpha;
  terminal->set_new_font_hook = x_new_font;
  terminal->set_bitmap_icon_hook = x_bitmap_icon;
  terminal->implicit_set_name_hook = x_implicitly_set_name;
  terminal->menu_show_hook = x_menu_show;
#ifdef HAVE_EXT_MENU_BAR
  terminal->activate_menubar_hook = x_activate_menubar;
#endif
#if defined (USE_X_TOOLKIT) || defined (USE_GTK)
  terminal->popup_dialog_hook = xw_popup_dialog;
#endif
  terminal->change_tab_bar_height_hook = x_change_tab_bar_height;
#ifndef HAVE_EXT_TOOL_BAR
  terminal->change_tool_bar_height_hook = x_change_tool_bar_height;
#endif
  terminal->set_vertical_scroll_bar_hook = XTset_vertical_scroll_bar;
  terminal->set_horizontal_scroll_bar_hook = XTset_horizontal_scroll_bar;
  terminal->set_scroll_bar_default_width_hook = x_set_scroll_bar_default_width;
  terminal->set_scroll_bar_default_height_hook = x_set_scroll_bar_default_height;
  terminal->condemn_scroll_bars_hook = XTcondemn_scroll_bars;
  terminal->redeem_scroll_bar_hook = XTredeem_scroll_bar;
  terminal->judge_scroll_bars_hook = XTjudge_scroll_bars;
  terminal->get_string_resource_hook = x_get_string_resource;
  terminal->free_pixmap = x_free_pixmap;
  terminal->delete_frame_hook = x_destroy_window;
  terminal->delete_terminal_hook = x_delete_terminal;
  terminal->toolkit_position_hook = x_toolkit_position;
#ifdef HAVE_XINPUT2
  terminal->any_grab_hook = x_have_any_grab;
#endif
  /* Other hooks are NULL by default.  */

  return terminal;
}

static void
x_initialize (void)
{
  baud_rate = 19200;

  x_noop_count = 0;
  any_help_event_p = false;
  ignore_next_mouse_click_timeout = 0;
  mouse_click_timeout_display = NULL;

#ifdef USE_GTK
  current_count = -1;
#endif

  /* Try to use interrupt input; if we can't, then start polling.  */
  Fset_input_interrupt_mode (Qt);

#if THREADS_ENABLED
  /* This must be called before any other Xlib routines.  */
  if (XInitThreads () == 0)
    fputs ("Warning: An error occurred initializing X11 thread support!\n",
	   stderr);
#endif

#ifdef USE_X_TOOLKIT
  XtToolkitInitialize ();

  Xt_app_con = XtCreateApplicationContext ();

  /* Register a converter from strings to pixels, which uses
     Emacs' color allocation infrastructure.  */
  XtAppSetTypeConverter (Xt_app_con,
			 XtRString, XtRPixel, cvt_string_to_pixel,
			 cvt_string_to_pixel_args,
			 XtNumber (cvt_string_to_pixel_args),
			 XtCacheByDisplay, cvt_pixel_dtor);

  XtAppSetFallbackResources (Xt_app_con, Xt_default_resources);
#endif

#ifdef USE_TOOLKIT_SCROLL_BARS
#ifndef USE_GTK
  xaw3d_arrow_scroll = False;
  xaw3d_pick_top = True;
#endif
#endif

#ifdef USE_CAIRO
  gui_init_fringe (&x_redisplay_interface);
#endif

  /* Note that there is no real way portable across R3/R4 to get the
     original error handler.  */
  XSetErrorHandler (x_error_handler);
  XSetIOErrorHandler (x_io_error_quitter);
}

#ifdef HAVE_X_I18N

/* Notice that a change has occurred on F that requires its input
   method state to be reset.  */

static void
x_reset_conversion (struct frame *f)
{
  char *string;

  if (FRAME_XIC (f))
    {
      string = XmbResetIC (FRAME_XIC (f));

      /* string is actually any string that was being composed at the
	 time of the reset.  */

      if (string)
	XFree (string);
    }
}

/* Interface used to control input method ``text conversion''.  */

static struct textconv_interface text_conversion_interface =
  {
    x_reset_conversion,
  };

#endif

void
init_xterm (void)
{
#ifndef HAVE_XINPUT2
  /* Emacs can handle only core input events when built without XI2
     support, so make sure Gtk doesn't use Xinput or Xinput2
     extensions.  */
#ifndef HAVE_GTK3
  xputenv ("GDK_CORE_DEVICE_EVENTS=1");
#else
  gdk_disable_multidevice ();
#endif
#endif

#ifdef HAVE_X_I18N
  register_textconv_interface (&text_conversion_interface);
#endif
}

void
mark_xterm (void)
{
  Lisp_Object val;
#if defined HAVE_XINPUT2 || defined USE_TOOLKIT_SCROLL_BARS \
  || defined HAVE_XRANDR || defined USE_GTK || defined HAVE_X_I18N
  struct x_display_info *dpyinfo;
#if defined HAVE_XINPUT2 || defined USE_TOOLKIT_SCROLL_BARS
  int i;
#endif
#endif

  if (x_dnd_return_frame_object)
    {
      XSETFRAME (val, x_dnd_return_frame_object);
      mark_object (val);
    }

  if (x_dnd_movement_frame)
    {
      XSETFRAME (val, x_dnd_movement_frame);
      mark_object (val);
    }

  if (x_dnd_wheel_frame)
    {
      XSETFRAME (val, x_dnd_wheel_frame);
      mark_object (val);
    }

#if defined HAVE_XINPUT2 || defined USE_TOOLKIT_SCROLL_BARS \
  || defined HAVE_XRANDR || defined USE_GTK || defined HAVE_X_I18N
  for (dpyinfo = x_display_list; dpyinfo; dpyinfo = dpyinfo->next)
    {
#ifdef HAVE_XINPUT2
      for (i = 0; i < dpyinfo->num_devices; ++i)
	mark_object (dpyinfo->devices[i].name);
#endif
#ifdef USE_TOOLKIT_SCROLL_BARS
      for (i = 0; i < dpyinfo->n_protected_windows; ++i)
	mark_object (dpyinfo->protected_windows[i]);
#endif
#if defined HAVE_XRANDR || defined USE_GTK
      mark_object (dpyinfo->last_monitor_attributes_list);
#endif
#if defined HAVE_X_I18N
      mark_object (dpyinfo->xim_coding);
#endif
    }
#endif
}

/* Error handling functions for Lisp functions that expose X protocol
   requests.  They are mostly like `x_catch_errors' and friends, but
   respect `x-fast-protocol-requests'.  */

void
x_catch_errors_for_lisp (struct x_display_info *dpyinfo)
{
  if (!x_fast_protocol_requests)
    x_catch_errors (dpyinfo->display);
  else
    x_ignore_errors_for_next_request (dpyinfo, 0);
}

void
x_check_errors_for_lisp (struct x_display_info *dpyinfo,
			 const char *format)
{
  if (!x_fast_protocol_requests)
    x_check_errors (dpyinfo->display, format);
}

void
x_uncatch_errors_for_lisp (struct x_display_info *dpyinfo)
{
  if (!x_fast_protocol_requests)
    x_uncatch_errors ();
  else
    x_stop_ignoring_errors (dpyinfo);
}

/* Preserve the selections in LOST in another frame on DPYINFO.  LOST
   is a list of local selections that were lost, due to their frame
   being deleted.  */

void
x_preserve_selections (struct x_display_info *dpyinfo, Lisp_Object lost,
		       Lisp_Object current_owner)
{
  Lisp_Object tail, frame, new_owner;
  Time timestamp;
  Window *owners;
  Atom *names;
  ptrdiff_t nowners, counter;
  struct selection_input_event clear;
#ifdef USE_XCB
  xcb_get_selection_owner_cookie_t *cookies;
  xcb_generic_error_t *error;
  xcb_get_selection_owner_reply_t *reply;
#endif

  new_owner = Qnil;

  FOR_EACH_FRAME (tail, frame)
    {
      if (FRAME_X_P (XFRAME (frame))
	  && !EQ (frame, current_owner)
	  && FRAME_DISPLAY_INFO (XFRAME (frame)) == dpyinfo)
	{
	  new_owner = frame;
	  break;
	}
    }

  tail = lost;
  nowners = 0;

  FOR_EACH_TAIL_SAFE (tail)
    {
      Lisp_Object tem = XCAR (tail);
      ++nowners;

      /* The selection is really lost (since we cannot find a new
	 owner), so run the appropriate hooks.  */
      if (NILP (new_owner))
	CALLN (Frun_hook_with_args, Qx_lost_selection_functions,
	       XCAR (tem));
      else
	{
	  CONS_TO_INTEGER (XCAR (XCDR (XCDR (tem))), Time, timestamp);

	  /* This shouldn't be able to signal any errors, despite the
	     call to `x_check_errors' inside.  */
	  x_own_selection (XCAR (tem), XCAR (XCDR (tem)),
			   new_owner, XCAR (XCDR (XCDR (XCDR (XCDR (tem))))),
			   timestamp);
	}
    }

  if (!NILP (new_owner))
    {
      owners = alloca (sizeof *owners * nowners);
      names = alloca (sizeof *names * nowners);
#ifdef USE_XCB
      cookies = alloca (sizeof *cookies * nowners);
#endif

      tail = lost;
      nowners = 0;
      counter = 0;

      FOR_EACH_TAIL_SAFE (tail)
	{
	  Lisp_Object tem = XCAR (tail);

	  /* Now check if we still don't own that selection, which can
	     happen if another program set itself as the owner.  */
	  names[counter++] = symbol_to_x_atom (dpyinfo, XCAR (tem));

#ifndef USE_XCB
	  owners[nowners++] = XGetSelectionOwner (dpyinfo->display,
						  names[counter - 1]);
#else
	  cookies[nowners++]
	    = xcb_get_selection_owner (dpyinfo->xcb_connection,
				       names[counter - 1]);
	}

      nowners = 0;
      tail = lost;

      FOR_EACH_TAIL_SAFE (tail)
	{
	  Lisp_Object tem = XCAR (tail);

	  reply = xcb_get_selection_owner_reply (dpyinfo->xcb_connection,
						 cookies[nowners++], &error);
	  if (reply)
	    owners[nowners - 1] = reply->owner;
	  else
	    owners[nowners - 1] = None;

	  free (reply ? (void *) reply : (void *) error);
#endif

	  if (owners[nowners - 1] != FRAME_X_WINDOW (XFRAME (new_owner)))
	    {
	      /* Clear the local selection, since we know we don't own
		 it any longer.  */
	      CONS_TO_INTEGER (XCAR (XCDR (XCDR (tem))), Time, timestamp);

	      clear.kind = SELECTION_CLEAR_EVENT;

	      SELECTION_EVENT_DPYINFO (&clear) = dpyinfo;
	      SELECTION_EVENT_SELECTION (&clear) = names[nowners - 1];
	      SELECTION_EVENT_TIME (&clear) = timestamp;

	      x_handle_selection_event (&clear);
	    }
	}

      tail = lost;
      nowners = 0;

      FOR_EACH_TAIL_SAFE (tail)
	{
	  Lisp_Object tem = XCAR (tail);

	  /* If the selection isn't owned by us anymore, note that the
	     selection was lost.  */
	  if (owners[nowners++] != FRAME_X_WINDOW (XFRAME (new_owner)))
	    CALLN (Frun_hook_with_args, Qx_lost_selection_functions,
		   XCAR (tem));
	}
    }
}

/* Return a list of the keyboard modifier masks in DPYINFO.

   Value is a list of (HYPER SUPER ALT SHIFT-LOCK META), each element
   being the appropriate modifier mask.  */

Lisp_Object
x_get_keyboard_modifiers (struct x_display_info *dpyinfo)
{
  /* This sometimes happens when the function is called during display
     initialization, which can happen while obtaining vendor specific
     keysyms.  */

#ifdef HAVE_XKB
  if (!dpyinfo->xkb_desc && !dpyinfo->modmap)
    x_find_modifier_meanings (dpyinfo);
#else
  if (!dpyinfo->modmap)
    x_find_modifier_meanings (dpyinfo);
#endif

  return list5 (make_uint (dpyinfo->hyper_mod_mask),
		make_uint (dpyinfo->super_mod_mask),
		make_uint (dpyinfo->alt_mod_mask),
		make_uint (dpyinfo->shift_lock_mask),
		make_uint (dpyinfo->meta_mod_mask));
}

void
syms_of_xterm (void)
{
  x_error_message = NULL;
  PDUMPER_IGNORE (x_error_message);

  x_dnd_monitors = Qnil;
  staticpro (&x_dnd_monitors);

  x_dnd_action_symbol = Qnil;
  staticpro (&x_dnd_action_symbol);

  x_dnd_selection_alias_cell = Fcons (Qnil, Qnil);
  staticpro (&x_dnd_selection_alias_cell);

  x_dnd_unsupported_drop_data = Qnil;
  staticpro (&x_dnd_unsupported_drop_data);

  /* Used by x_cr_export_frames.  */
  DEFSYM (Qconcat, "concat");

  DEFSYM (Qvendor_specific_keysyms, "vendor-specific-keysyms");
  DEFSYM (Qlatin_1, "latin-1");
  DEFSYM (Qnow, "now");
  DEFSYM (Qx_dnd_targets_list, "x-dnd-targets-list");
  DEFSYM (Qx_auto_preserve_selections, "x-auto-preserve-selections");
  DEFSYM (Qexpose, "expose");
  DEFSYM (Qdont_save, "dont-save");

  DEFSYM (Qmouse_wheel_buttons, "mouse-wheel-buttons");
  DEFSYM (Qwheel_up,    "wheel-up");
  DEFSYM (Qwheel_down,  "wheel-down");
  DEFSYM (Qwheel_left,  "wheel-left");
  DEFSYM (Qwheel_right, "wheel-right");

#ifdef USE_GTK
  xg_default_icon_file = build_pure_c_string ("icons/hicolor/scalable/apps/emacs.svg");
  staticpro (&xg_default_icon_file);

  DEFSYM (Qx_gtk_map_stock, "x-gtk-map-stock");
#endif

  DEFVAR_BOOL ("x-use-underline-position-properties",
	       x_use_underline_position_properties,
     doc: /* Non-nil means make use of UNDERLINE_POSITION font properties.
A value of nil means ignore them.  If you encounter fonts with bogus
UNDERLINE_POSITION font properties, set this to nil.  You can also use
`underline-minimum-offset' to override the font's UNDERLINE_POSITION for
small font display sizes.  */);
  x_use_underline_position_properties = true;
  DEFSYM (Qx_use_underline_position_properties,
	  "x-use-underline-position-properties");

  DEFVAR_BOOL ("x-underline-at-descent-line",
	       x_underline_at_descent_line,
     doc: /* Non-nil means to draw the underline at the same place as the descent line.
(If `line-spacing' is in effect, that moves the underline lower by
that many pixels.)
A value of nil means to draw the underline according to the value of the
variable `x-use-underline-position-properties', which is usually at the
baseline level.  The default value is nil.  */);
  x_underline_at_descent_line = false;
  DEFSYM (Qx_underline_at_descent_line, "x-underline-at-descent-line");

  DEFVAR_BOOL ("x-mouse-click-focus-ignore-position",
	       x_mouse_click_focus_ignore_position,
    doc: /* Non-nil means that a mouse click to focus a frame does not move point.
This variable is used only when the window manager requires that you
click on a frame to select it (give it focus).  In that case, a value
of nil, means that the selected window and cursor position changes to
reflect the mouse click position, while a non-nil value means that the
selected window or cursor position is preserved.

This option works by ignoring button press events for a given amount
of time after a frame might've been focused.  If it does not work for
you, try increasing the value of
`x-mouse-click-focus-ignore-time'.  */);
  x_mouse_click_focus_ignore_position = false;

  DEFVAR_INT ("x-mouse-click-focus-ignore-time", x_mouse_click_focus_ignore_time,
    doc: /* Number of milliseconds for which to ignore buttons after focus change.
This variable only takes effect if
`x-mouse-click-focus-ignore-position' is non-nil, and should be
adjusted if the default value does not work for whatever reason.  */);
  x_mouse_click_focus_ignore_time = 200;

  DEFVAR_LISP ("x-toolkit-scroll-bars", Vx_toolkit_scroll_bars,
    doc: /* Which toolkit scroll bars Emacs uses, if any.
A value of nil means Emacs doesn't use toolkit scroll bars.
With the X Window system, the value is a symbol describing the
X toolkit.  Possible values are: gtk, motif, xaw, or xaw3d.
With MS Windows, Haiku windowing or Nextstep, the value is t.
With Android, the value is nil, but that is because Emacs on
Android does not support scroll bars at all.  */);
#ifdef USE_TOOLKIT_SCROLL_BARS
#ifdef USE_MOTIF
  Vx_toolkit_scroll_bars = intern_c_string ("motif");
#elif defined HAVE_XAW3D
  Vx_toolkit_scroll_bars = intern_c_string ("xaw3d");
#elif USE_GTK
  Vx_toolkit_scroll_bars = intern_c_string ("gtk");
#else
  Vx_toolkit_scroll_bars = intern_c_string ("xaw");
#endif
#else
  Vx_toolkit_scroll_bars = Qnil;
#endif

  DEFSYM (Qmodifier_value, "modifier-value");
  DEFSYM (Qctrl, "ctrl");
  Fput (Qctrl, Qmodifier_value, make_fixnum (ctrl_modifier));
  DEFSYM (Qalt, "alt");
  Fput (Qalt, Qmodifier_value, make_fixnum (alt_modifier));
  DEFSYM (Qhyper, "hyper");
  Fput (Qhyper, Qmodifier_value, make_fixnum (hyper_modifier));
  DEFSYM (Qmeta, "meta");
  Fput (Qmeta, Qmodifier_value, make_fixnum (meta_modifier));
  DEFSYM (Qsuper, "super");
  Fput (Qsuper, Qmodifier_value, make_fixnum (super_modifier));
  DEFSYM (QXdndSelection, "XdndSelection");
  DEFSYM (Qx_selection_alias_alist, "x-selection-alias-alist");
  DEFSYM (Qimitate_pager, "imitate-pager");
  DEFSYM (Qnewer_time, "newer-time");
  DEFSYM (Qraise_and_focus, "raise-and-focus");
  DEFSYM (Qreally_fast, "really-fast");

  DEFVAR_LISP ("x-ctrl-keysym", Vx_ctrl_keysym,
    doc: /* Which modifer value Emacs reports when Ctrl is depressed.
This should be one of the symbols `ctrl', `alt', `hyper', `meta', or
`super', representing a modifier to be reported for key events with the
Ctrl modifier (i.e. the keysym Ctrl_L or Ctrl_R) depressed, with nil or
any other value equivalent to `ctrl'.  */);
  Vx_ctrl_keysym = Qnil;

  DEFVAR_LISP ("x-alt-keysym", Vx_alt_keysym,
    doc: /* Which modifer value Emacs reports when Alt is depressed.
This should be one of the symbols `ctrl', `alt', `hyper', `meta', or
`super', representing a modifier to be reported for key events with the
Alt modifier (e.g. the keysym Alt_L or Alt_R, if the keyboard features a
dedicated key for Meta) depressed, with nil or any other value
equivalent to `alt'.  */);
  Vx_alt_keysym = Qnil;

  DEFVAR_LISP ("x-hyper-keysym", Vx_hyper_keysym,
    doc: /* Which modifer value Emacs reports when Hyper is depressed.
This should be one of the symbols `ctrl', `alt', `hyper', `meta', or
`super', representing a modifier to be reported for key events with the
Hyper modifier (i.e. the keysym Hyper_L or Hyper_R) depressed, with nil
or any other value equivalent to `hyper'.  */);
  Vx_hyper_keysym = Qnil;

  DEFVAR_LISP ("x-meta-keysym", Vx_meta_keysym,
    doc: /* Which modifer value Emacs reports when Meta is depressed.
This should be one of the symbols `ctrl', `alt', `hyper', `meta', or
`super', representing a modifier to be reported for key events with the
Meta modifier (e.g. the keysym Alt_L or Alt_R, when the keyboard does
not feature a dedicated key for Meta) depressed, with nil or any other
value equivalent to `meta'.  */);
  Vx_meta_keysym = Qnil;

  DEFVAR_LISP ("x-super-keysym", Vx_super_keysym,
    doc: /* Which modifer value Emacs reports when Super is depressed.
This should be one of the symbols `ctrl', `alt', `hyper', `meta', or
`super', representing a modifier to be reported for key events with the
Super modifier (i.e. the keysym Super_L or Super_R) depressed, with nil
or any other value equivalent to `super'.  */);
  Vx_super_keysym = Qnil;

  DEFVAR_LISP ("x-wait-for-event-timeout", Vx_wait_for_event_timeout,
    doc: /* How long to wait for X events.

Emacs will wait up to this many seconds to receive X events after
making changes which affect the state of the graphical interface.
Under some window managers this can take an indefinite amount of time,
so it is important to limit the wait.

If set to a non-float value, there will be no wait at all.  */);
  Vx_wait_for_event_timeout = make_float (0.1);

  DEFVAR_LISP ("x-keysym-table", Vx_keysym_table,
    doc: /* Hash table of character codes indexed by X keysym codes.  */);
  Vx_keysym_table = make_hash_table (&hashtest_eql, 900, Weak_None, false);

  DEFVAR_BOOL ("x-frame-normalize-before-maximize",
	       x_frame_normalize_before_maximize,
    doc: /* Non-nil means normalize frame before maximizing.
If this variable is t, Emacs first asks the window manager to give the
frame its normal size, and only then the final state, whenever changing
from a full-height, full-width or full-both state to the maximized one
or when changing from the maximized to the full-height or full-width
state.

Set this variable only if your window manager cannot handle the
transition between the various maximization states.  */);
  x_frame_normalize_before_maximize = false;

  DEFVAR_BOOL ("x-gtk-use-window-move", x_gtk_use_window_move,
    doc: /* Non-nil means rely on gtk_window_move to set frame positions.
If this variable is t (the default), the GTK build uses the function
gtk_window_move to set or store frame positions and disables some time
consuming frame position adjustments.  In newer versions of GTK, Emacs
always uses gtk_window_move and ignores the value of this variable.  */);
  x_gtk_use_window_move = true;

  DEFVAR_LISP ("x-scroll-event-delta-factor", Vx_scroll_event_delta_factor,
	       doc: /* A scale to apply to pixel deltas reported in scroll events.
This option is only effective when Emacs is built with XInput 2
support. */);
  Vx_scroll_event_delta_factor = make_float (1.0);

  DEFVAR_BOOL ("x-gtk-use-native-input", x_gtk_use_native_input,
	       doc: /* Non-nil means to use GTK for input method support.
This provides better support for some modern input methods, and is
only effective when Emacs is built with GTK.  */);
  x_gtk_use_native_input = false;

  DEFVAR_LISP ("x-set-frame-visibility-more-laxly",
	       x_set_frame_visibility_more_laxly,
    doc: /* Non-nil means set frame visibility more laxly.
If this is nil, Emacs is more strict when marking a frame as visible.
Since this may cause problems on some window managers, this variable can
be also set as follows: The value `focus-in' means to mark a frame as
visible also when a FocusIn event is received for it on GTK builds.  The
value `expose' means to mark a frame as visible also when an Expose
event is received for it on any X build.  The value `t' means to mark a
frame as visible in either of these two cases.

Note that any non-nil setting may cause invisible frames get erroneously
reported as iconified.  */);
  x_set_frame_visibility_more_laxly = Qnil;

  DEFVAR_BOOL ("x-input-grab-touch-events", x_input_grab_touch_events,
	       doc: /* Non-nil means to actively grab touch events.
This means touch sequences that are obtained through a passive grab on
an Emacs frame (or a parent window of such a frame) will reliably
continue to receive updates, but may cause crashes with some window
managers and/or external programs.  Changing this option is only
useful when other programs are making their own X requests pertaining
to the window hierarchy of an Emacs frame.  */);
  x_input_grab_touch_events = true;

  DEFVAR_BOOL ("x-dnd-fix-motif-leave", x_dnd_fix_motif_leave,
	       doc: /* Work around Motif bug during drag-and-drop.
When non-nil, Emacs will send a motion event containing impossible
coordinates to a Motif drop receiver when the mouse moves outside it
during a drag-and-drop session, to work around broken implementations
of Motif.  */);
  x_dnd_fix_motif_leave = true;

  DEFVAR_BOOL ("x-dnd-disable-motif-drag", x_dnd_disable_motif_drag,
	       doc: /* Disable the Motif drag protocol during DND.
This reduces network usage, but also means you can no longer scroll
around inside the Motif window underneath the cursor during
drag-and-drop.  */);
  x_dnd_disable_motif_drag = false;

  DEFVAR_LISP ("x-dnd-movement-function", Vx_dnd_movement_function,
    doc: /* Function called upon mouse movement on a frame during drag-and-drop.
It should either be nil, or accept two arguments FRAME and POSITION,
where FRAME is the frame the mouse is on top of, and POSITION is a
mouse position list.  */);
  Vx_dnd_movement_function = Qnil;

  DEFVAR_LISP ("x-dnd-wheel-function", Vx_dnd_wheel_function,
    doc: /* Function called upon wheel movement on a frame during drag-and-drop.
It should either be nil, or accept four arguments POSITION, BUTTON,
STATE and TIME, where POSITION is a mouse position list describing
where the wheel moved, BUTTON is the wheel button that was pressed,
STATE is the X modifier state at the time of the wheel movement, and
TIME is the X server time at which the wheel moved.  */);
  Vx_dnd_wheel_function = Qnil;

  DEFVAR_LISP ("x-dnd-unsupported-drop-function", Vx_dnd_unsupported_drop_function,
    doc: /* Function called when trying to drop on an unsupported window.
This function is called whenever the user tries to drop something on a
window that does not support either the XDND or Motif protocols for
drag-and-drop.  It should return a non-nil value if the drop was
handled by the function, and nil if it was not.  It should accept
several arguments TARGETS, X, Y, ACTION, WINDOW-ID, FRAME, TIME and
LOCAL-SELECTION, where TARGETS is the list of targets that was passed
to `x-begin-drag', WINDOW-ID is the numeric XID of the window that is
being dropped on, X and Y are the root window-relative coordinates
where the drop happened, ACTION is the action that was passed to
`x-begin-drag', FRAME is the frame which initiated the drag-and-drop
operation, TIME is the X server time when the drop happened, and
LOCAL-SELECTION is the contents of the `XdndSelection' when
`x-begin-drag' was run; its contents can be retrieved by calling the
function `x-get-local-selection'.

If a symbol is returned, then it will be used as the return value of
`x-begin-drag'.  */);
  Vx_dnd_unsupported_drop_function = Qnil;

  DEFVAR_INT ("x-color-cache-bucket-size", x_color_cache_bucket_size,
    doc: /* Max number of buckets allowed per display in the internal color cache.
Values less than 1 mean 128.  This option is for debugging only.  */);
  x_color_cache_bucket_size = 128;

  DEFVAR_LISP ("x-dnd-targets-list", Vx_dnd_targets_list,
    doc: /* List of drag-and-drop targets.
This variable contains the list of drag-and-drop selection targets
during a drag-and-drop operation, in the same format as the TARGET
argument to `x-begin-drag'.  */);
  Vx_dnd_targets_list = Qnil;

  DEFVAR_LISP ("x-dnd-native-test-function", Vx_dnd_native_test_function,
    doc: /* Function that determines return value of drag-and-drop on Emacs frames.
If the value is a function, `x-begin-drag' will call it with two
arguments, POS and ACTION, where POS is a mouse position list
that specifies the location of the drop, and ACTION is the
action specified by the caller of `x-begin-drag'.  The function
should return a symbol describing what to return from
`x-begin-drag' if the drop happens on an Emacs frame.

If the value is nil, or the function returns a value that is not
a symbol, a drop on an Emacs frame will be canceled.  */);
  Vx_dnd_native_test_function = Qnil;

  DEFVAR_BOOL ("x-dnd-preserve-selection-data", x_dnd_preserve_selection_data,
    doc: /* Preserve selection data after `x-begin-drag' returns.
This lets you inspect the contents of `XdndSelection' after a
drag-and-drop operation, which is useful when writing tests for
drag-and-drop code.  */);
  x_dnd_preserve_selection_data = false;

  DEFVAR_BOOL ("x-dnd-disable-motif-protocol", x_dnd_disable_motif_protocol,
    doc: /* Disable the Motif drag-and-drop protocols.
When non-nil, `x-begin-drag' will not drop onto any window that only
supports the Motif drag-and-drop protocols.  */);
  x_dnd_disable_motif_protocol = false;

  DEFVAR_BOOL ("x-dnd-use-unsupported-drop", x_dnd_use_unsupported_drop,
    doc: /* Enable the emulation of drag-and-drop based on the primary selection.
When nil, do not use the primary selection and synthetic mouse clicks
to emulate the drag-and-drop of `STRING', `UTF8_STRING',
`COMPOUND_TEXT' or `TEXT'.  */);
  x_dnd_use_unsupported_drop = true;

  DEFVAR_BOOL ("x-fast-protocol-requests", x_fast_protocol_requests,
    doc: /* Whether or not X protocol-related functions should wait for errors.
When this is nil, functions such as `x-delete-window-property',
`x-change-window-property' and `x-send-client-message' will wait for a
reply from the X server, and signal any errors that occurred while
executing the protocol request.  Otherwise, errors will be silently
ignored without waiting, which is generally faster.  */);
  x_fast_protocol_requests = false;

  DEFVAR_LISP ("x-auto-preserve-selections", Vx_auto_preserve_selections,
    doc: /* Whether or not to transfer selection ownership when deleting a frame.
When non-nil, deleting a frame that is currently the owner of a
selection will cause its ownership to be transferred to another frame
on the same display.

In addition, when this variable is a list, only preserve the
selections whose names are contained within.  */);
  Vx_auto_preserve_selections = list2 (QCLIPBOARD, QPRIMARY);

  DEFVAR_LISP ("x-input-coding-system", Vx_input_coding_system,
    doc: /* Coding system used for input from X input methods.
If a symbol and non-nil, this is the coding system that will be used
to decode input from X input methods.  It does not affect input from
GTK native input methods enabled through `x-gtk-use-native-input'.  */);
  Vx_input_coding_system = Qnil;

  DEFVAR_LISP ("x-input-coding-function", Vx_input_coding_function,
    doc: /* Function used to determine the coding system used by input methods.
It should accept a single argument, a string describing the locale of
the input method, and return a coding system that can decode keyboard
input generated by said input method.  */);
  Vx_input_coding_function = Qnil;

  DEFVAR_LISP ("x-fast-selection-list", Vx_fast_selection_list,
    doc: /* List of selections for which `x-selection-exists-p' should be fast.

List of selection names as atoms that will be monitored by Emacs for
ownership changes when the X server supports the XFIXES extension.
The result of the monitoring is then used by `x-selection-exists-p' to
avoid a server round trip, which is important as it is called while
updating the tool bar.  The value of this variable is only read upon
connection setup.  */);
  /* The default value of this variable is chosen so that updating the
     tool bar does not require a call to _XReply.  */
  Vx_fast_selection_list = list1 (QCLIPBOARD);

  DEFVAR_LISP ("x-allow-focus-stealing", Vx_allow_focus_stealing,
    doc: /* How to bypass window manager focus stealing prevention.

Some window managers prevent `x-focus-frame' from activating the given
frame when Emacs is in the background, which is especially prone to
cause problems when the Emacs server wants to activate itself.

In addition, when an old-fashioned (pre-EWMH) window manager is being
run and `x-no-window-manager' is nil, the X server will not let Emacs
focus itself if another program was focused after the last time Emacs
obtained the input focus.

This variable specifies the strategy used to activate frames when that
is the case, and has several valid values (any other value means to
not bypass window manager focus stealing prevention):

  - The symbol `imitate-pager', which means to pretend that Emacs is a
    pager.

  - The symbol `newer-time', which means to fetch the current time
    from the X server and use it to activate the frame.

  - The symbol `raise-and-focus', which means to raise the window and
    focus it manually.  */);
  Vx_allow_focus_stealing = Qnewer_time;

  DEFVAR_LISP ("x-use-fast-mouse-position", Vx_use_fast_mouse_position,
    doc: /* How to make `mouse-position' faster.

`mouse-position' and `mouse-pixel-position' default to querying the X
server for the window under the mouse pointer.  This results in
accurate results, but is also very slow when the X connection has
moderate to high latency.  Setting this variable to a non-nil value
makes Emacs query only for the position of the pointer, which is
usually faster.  Doing so improves the performance of dragging to
select text over slow X connections.

If that is still too slow, setting this variable to the symbol
`really-fast' will make Emacs return only cached values.  */);
  Vx_use_fast_mouse_position = Qnil;

  DEFVAR_LISP ("x-detect-server-trust", Vx_detect_server_trust,
    doc: /* If non-nil, Emacs should detect whether or not it is trusted by X.

If non-nil, Emacs will make an X request at connection startup that is
prohibited to untrusted clients under the X Security Extension and
check whether or not a resulting Access error is generated by the X
server.  If the X server reports the error, Emacs will disable certain
features that do not work for untrusted clients.  */);
  Vx_detect_server_trust = Qnil;

  DEFVAR_LISP ("x-lax-frame-positioning", Vx_lax_frame_positioning,
    doc: /* If non-nil, Emacs won't compensate for WM geometry behavior.

Setting this to non-nil is useful when the compensation proves to be
too slow, which is usually true when the X server is located over a
network connection with high latency.  Doing so will make frame
creation and placement faster at the cost of reducing the accuracy of
frame placement via frame parameters, `set-frame-position', and
`set-frame-size', along with the actual state of a frame after
`x_make_frame_invisible'.  */);
  Vx_lax_frame_positioning = Qnil;

  DEFVAR_LISP ("x-quit-keysym", Vx_quit_keysym,
    doc: /* Keysyms which will cause Emacs to quit if rapidly pressed twice.

This is used to support quitting on devices that do not have any kind
of physical keyboard, or where the physical keyboard is incapable of
entering `C-g'.

The value is an alist associating between strings, describing X server
vendor names, and a single number describing the keysym to use.  The
keysym to use for each display connection is determined upon
connection setup, and does not reflect further changes to this
variable.  */);
  Vx_quit_keysym = Qnil;
}

debug log:

solving 360541ac0b9 ...
found 360541ac0b9 in https://git.savannah.gnu.org/cgit/emacs.git

(*) Git path names are given by the tree(s) the blob belongs to.
    Blobs themselves have no identifier aside from the hash of its contents.^
Code repositories for project(s) associated with this public inbox

	https://git.savannah.gnu.org/cgit/emacs.git

This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for read-only IMAP folder(s) and NNTP newsgroup(s).