/* X Communication module for terminals which understand the X protocol. Copyright (C) 1989, 1993-2022 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 . */ /* New display code by Gerd Moellmann . */ /* 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 aformentioned 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 unecessary, as `x_uncatch_errors' will always synchronize with the X server, which is a potentially slow operation. */ #include #include #include #include #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 #ifdef USE_XCB #include #include #endif /* If we have Xfixes extension, use it for pointer blanking. */ #ifdef HAVE_XFIXES #include #endif #ifdef HAVE_XDBE #include #endif #ifdef HAVE_XINPUT2 #include #endif #ifdef HAVE_XRANDR #include #endif #ifdef HAVE_XSYNC #include #endif #ifdef HAVE_XINERAMA #include #endif #ifdef HAVE_XCOMPOSITE #include #endif #ifdef HAVE_XSHAPE #include #endif #ifdef HAVE_XCB_SHAPE #include #endif /* Load sys/types.h if not already loaded. In some systems loading it twice is suicidal. */ #ifndef makedev #include #endif /* makedev */ #include #include "systime.h" #include #include #include #include #include #include #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 #include #endif #include #ifdef USE_GTK #include "gtkutil.h" #ifdef HAVE_GTK3 #include #endif #endif #if defined (USE_LUCID) || defined (USE_MOTIF) #include "../lwlib/xlwmenu.h" #endif #ifdef HAVE_XWIDGETS #include #endif #ifdef USE_MOTIF #include #include #endif #ifdef USE_X_TOOLKIT /* Include toolkit specific headers for the scroll bar widget. */ #ifdef USE_TOOLKIT_SCROLL_BARS #if defined USE_MOTIF #include #else /* !USE_MOTIF i.e. use Xaw */ #ifdef HAVE_XAW3D #include #include #include #else /* !HAVE_XAW3D */ #include #include #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 #endif #include "bitmaps/gray.xbm" #ifdef HAVE_XKB #include #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 /* Default to using XIM if available. */ #ifdef USE_XIM bool use_xim = true; #else bool use_xim = false; /* configure --without-xim */ #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); 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 /* 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; /* 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 (INT_ADD_WRAPV (header.target_list_count, 1, &header.target_list_count) || INT_MULTIPLY_WRAPV (ntargets, 4, &size) || INT_ADD_WRAPV (header.total_data_size, size, &header.total_data_size) || INT_ADD_WRAPV (header.total_data_size, 2, &header.total_data_size)) { /* 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); } 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); } 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_call2 (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); } /* 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 /*********************************************************************** 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 #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; } #endif 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 */ #ifdef HAVE_XINPUT2 /* 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 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 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 #ifdef HAVE_XINPUT2_2 tem = dpyinfo->devices[i].touchpoints; while (tem) { last = tem; tem = tem->next; xfree (last); } #endif } 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 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 #ifdef HAVE_XINPUT2_2 XITouchClassInfo *touch_info; #endif #ifdef HAVE_XINPUT2_1 USE_SAFE_ALLOCA; #endif /* 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 use. If the device is a master device, then the 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. */ 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 #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]; xi_device->direct_p = touch_info->mode == XIDirectTouch; } #endif 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 } /* 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 static void xi_link_touch_point (struct xi_device_t *device, int detail, double x, double y) { struct xi_touch_point_t *touchpoint; touchpoint = xmalloc (sizeof *touchpoint); touchpoint->next = device->touchpoints; touchpoint->x = x; touchpoint->y = y; touchpoint->number = detail; device->touchpoints = touchpoint; } static bool xi_unlink_touch_point (int detail, struct xi_device_t *device) { struct xi_touch_point_t *last, *tem; 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; xfree (tem); return true; } } return false; } 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 #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)); if (FRAME_X_DOUBLE_BUFFERED_P (f)) x_mark_frame_dirty (f); } 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 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 } 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 /* 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); } /*********************************************************************** 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 (INT_SUBTRACT_WRAPV (timestamp, dpyinfo->server_time_offset, &t) ? 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)) || INT_MULTIPLY_WRAPV (time.tv_sec, 1000000, &t) || INT_ADD_WRAPV (t, time.tv_nsec / 1000, &t)) ? 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 || INT_SUBTRACT_WRAPV (time, output->temp_frame_time, &output->last_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; 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); 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 if (!FRAME_X_DOUBLE_BUFFERED_P (f) && FRAME_CR_CONTEXT (f)) cairo_surface_flush (cairo_get_target (FRAME_CR_CONTEXT (f))); #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 /** * 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 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 - 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 - 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; /* Must clip because of partially visible lines. */ x_clip_to_row (w, row, ANY_AREA, gc); 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 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), 0, 0, 0, 0, p->x, p->y, p->wd, p->h); x_xr_reset_ext_clip (f); XRenderFreePicture (display, picture); } else #endif XCopyArea (display, pixmap, drawable, gc, 0, 0, p->wd, p->h, p->x, p->y); XFreePixmap (display, pixmap); if (p->overlay_p) { gcv.clip_mask = (Pixmap) 0; XChangeGC (display, gc, GCClipMask, &gcv); XFreePixmap (display, clipmask); } } #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 && !INT_SUBTRACT_WRAPV (time, monotonic_ms, &diff_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 || INT_MULTIPLY_WRAPV (time, 1000, &dpyinfo->server_time_offset) || INT_SUBTRACT_WRAPV (dpyinfo->server_time_offset, monotonic_time, &dpyinfo->server_time_offset)) 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 (!INT_SUBTRACT_WRAPV (time, monotonic_ms, &diff_ms) && -500 < diff_ms && diff_ms < 500) { /* The server timestamp overflowed. Make the time offset exactly how much it overflowed by. */ if (INT_SUBTRACT_WRAPV (monotonic_time / 1000, monotonic_ms, &dpyinfo->server_time_offset) || INT_MULTIPLY_WRAPV (dpyinfo->server_time_offset, 1000, &dpyinfo->server_time_offset) || INT_SUBTRACT_WRAPV (0, dpyinfo->server_time_offset, &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_UNDER_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_UNDER_LINE) { unsigned long thickness, position; int y; if (s->prev && s->prev->face->underline == FACE_UNDER_LINE && (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 callig 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)), 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)), 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 (); } /*********************************************************************** Exposure Events ***********************************************************************/ 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); 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); 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 fprintf (stderr, "x_new_focus_frame: switching focus to" " %s\n", SSDATA (frame->name)); 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'. */ /* Implementors 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 /* 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 means 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); } 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) { 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); } /* 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 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]; if (touch->mode == XIDirectTouch) device->direct_p = true; break; #endif } } /* 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 /* 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 /* 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); } #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); } } /* 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'. */ static Lisp_Object x_construct_mouse_click (struct input_event *result, const XButtonEvent *event, struct frame *f) { int x = event->x; int y = event->y; /* Make the event type NO_EVENT; we'll change that when we decide otherwise. */ 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)); /* 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 (); } /*********************************************************************** 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 */ /************************************************************************ 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 */ /************************************************************************ 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, ¤t_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; if (dpyinfo->xkb_desc) { if (!XkbTranslateKeyCode (dpyinfo->xkb_desc, xkey.keycode, xkey.state, &consumed, &keysym)) goto done_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; nbytes = XkbTranslateKeySym (dpyinfo->display, &keysym, 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 /* 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 #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 if (x_top_window_to_frame (dpyinfo, event->xcrossing.window)) x_detect_focus_change (dpyinfo, any, event, &inev.ie); 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 allows to override 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); #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 /* 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 } #endif #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 (x_top_window_to_frame (dpyinfo, event->xcrossing.window)) x_detect_focus_change (dpyinfo, any, event, &inev.ie); #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); /* 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))); } if (f && FRAME_X_DOUBLE_BUFFERED_P (f)) x_drop_xrender_surfaces (f); 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); if (f || (any && configureEvent.xconfigure.window == FRAME_X_WINDOW (any))) x_update_opaque_region (f ? f : any, &configureEvent); #endif #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); } if (event->type == ButtonRelease) ignore_next_mouse_click_timeout = 0; } else x_construct_mouse_click (&inev.ie, &event->xbutton, f); *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); 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); 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); } if (event->type == ButtonRelease) ignore_next_mouse_click_timeout = 0; } else x_construct_mouse_click (&inev.ie, &event->xbutton, f); 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) { 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 allows to override 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; } 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 (any) xi_focus_handle_for_device (dpyinfo, any, xi_event); 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 (any) xi_focus_handle_for_device (dpyinfo, any, xi_event); #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); 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); /* 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); 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); /* 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); } if (xev->evtype == XI_ButtonRelease) ignore_next_mouse_click_timeout = 0; } else x_construct_mouse_click (&inev.ie, &bv, f); 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 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; coding = Qlatin_1; device = xi_device_from_id (dpyinfo, xev->deviceid); source = xi_device_from_id (dpyinfo, xev->sourceid); if (!device) goto XI_OTHER; #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 = xi_convert_event_keyboard_state (xev); xi_convert_button_state (&xev->buttons, ©.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 goto XI_OTHER; } #endif 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 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); } XKeyPressedEvent xkey; 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 = 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 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 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 #elif USE_GTK 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 state |= x_emacs_to_x_modifiers (dpyinfo, extra_keyboard_modifiers); #ifdef HAVE_XKB if (dpyinfo->xkb_desc) { unsigned int xkb_state; xkb_state = state & ~(1 << 13 | 1 << 14); xkb_state |= xev->group.effective << 13; if (!XkbTranslateKeyCode (dpyinfo->xkb_desc, keycode, xkb_state, &mods_rtrn, &keysym)) goto XI_OTHER; } else { #endif int keysyms_per_keycode_return; KeySym *ksms = XGetKeyboardMapping (dpyinfo->display, keycode, 1, &keysyms_per_keycode_return); if (!(keysym = ksms[0])) { XFree (ksms); goto XI_OTHER; } XFree (ksms); #ifdef HAVE_XKB } #endif if (keysym == NoSymbol) goto XI_OTHER; /* 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 (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 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 { #ifdef HAVE_XKB int overflow = 0; KeySym sym = keysym; if (dpyinfo->xkb_desc) { nbytes = XkbTranslateKeySym (dpyinfo->display, &sym, state & ~mods_rtrn, copy_bufptr, copy_bufsiz, &overflow); if (overflow) { copy_bufptr = SAFE_ALLOCA ((copy_bufsiz += overflow) * sizeof *copy_bufptr); overflow = 0; nbytes = XkbTranslateKeySym (dpyinfo->display, &sym, state & ~mods_rtrn, copy_bufptr, copy_bufsiz, &overflow); if (overflow) nbytes = 0; } coding = Qnil; } else #endif { 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 /* 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; bool any_changed; any_changed = false; 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; /* This flag really just means that disabled devices were handled early and should be used in conjunction with n_disabled. */ any_changed = true; } /* 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 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); 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); if (!device) 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 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); 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_TouchUpdate: { struct xi_device_t *device, *source; struct xi_touch_point_t *touchpoint; Lisp_Object arg = Qnil; 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); if (!device) goto XI_OTHER; touchpoint = xi_find_touch_point (device, xev->detail); if (!touchpoint) goto XI_OTHER; touchpoint->x = xev->event_x; touchpoint->y = 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) { arg = Fcons (list3i (lrint (touchpoint->x), lrint (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; bool unlinked_p; 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); if (!device) goto XI_OTHER; unlinked_p = xi_unlink_touch_point (xev->detail, device); if (unlinked_p) { f = x_window_to_frame (dpyinfo, xev->event); if (f && device->direct_p) { inev.ie.kind = TOUCHSCREEN_END_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; } } 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) 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 ? © : (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; } /*********************************************************************** 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. 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) { 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); } /* 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); 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); 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 } } /* 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; } 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. As a special feature intended to support xselect.c, SELECTION_SERIAL may be an arbitrary number greater than zero: when that is the case, x_select_handle_selection_error is called with the specified number to delete the selection request that encountered the error. */ 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 /************************************************************************ 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, 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 . 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); 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; } /* 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; } /*********************************************************************** 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; XFree (dpyinfo->xim_styles); 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 (use_xim) { if (dpyinfo->xim) XCloseIM (dpyinfo->xim); 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_call1 (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 (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); ret = XRegisterIMInstantiateCallback (dpyinfo->display, dpyinfo->rdb, xim_inst->resource_name, emacs_class, xim_instantiate_callback, /* This 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 *. */ (void *) xim_inst); eassert (ret == True); #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. */ static void xim_close_dpy (struct x_display_info *dpyinfo) { #ifdef HAVE_XIM if (use_xim) { #ifdef HAVE_X11R6_XIM struct xim_inst_t *xim_inst = dpyinfo->xim_callback_data; if (dpyinfo->display) { Bool ret = XUnregisterIMInstantiateCallback (dpyinfo->display, dpyinfo->rdb, xim_inst->resource_name, emacs_class, xim_instantiate_callback, (void *) xim_inst); eassert (ret == True); } xfree (xim_inst->resource_name); xfree (xim_inst); #endif /* HAVE_X11R6_XIM */ if (dpyinfo->display) XCloseIM (dpyinfo->xim); dpyinfo->xim = NULL; XFree (dpyinfo->xim_styles); } #endif /* HAVE_XIM */ } #endif /* not HAVE_X11R6_XIM */ /* 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 * -. 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, ¤t_left, ¤t_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, ¤t_left, ¤t_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); } /* 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 (); 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 (); } /* 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)); } /* 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 (); /* 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 */ } /* 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 /* 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); /* We must free faces before destroying windows because some font-driver (e.g. xft) access a window while finishing a face. */ free_frame_faces (f); 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); #ifdef HAVE_XINPUT2 /* 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 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 /* 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); } /*********************************************************************** 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 */ /*********************************************************************** 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 } /*********************************************************************** 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; #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 tem, 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_call1 (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++; } /* 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 (INT_ADD_WRAPV (nbytes, SBYTES (system_name), &nbytes)) 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); } #endif #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"); #endif #ifdef HAVE_X_I18N /* 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 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); } { AUTO_STRING (useXIM, "useXIM"); AUTO_STRING (UseXIM, "UseXIM"); Lisp_Object value = gui_display_get_resource (dpyinfo, useXIM, UseXIM, Qnil, Qnil); #ifdef USE_XIM if (STRINGP (value) && (!strcmp (SSDATA (value), "false") || !strcmp (SSDATA (value), "off"))) use_xim = false; #else if (STRINGP (value) && (!strcmp (SSDATA (value), "true") || !strcmp (SSDATA (value), "on"))) use_xim = true; #endif } #ifdef HAVE_X_I18N { 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 } } #endif #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 | 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; } /* 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 */ /* 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. */ if (dpyinfo->xim) xim_close_dpy (dpyinfo); #endif /* Normally, the display is available... */ if (dpyinfo->display) { image_destroy_all_bitmaps (dpyinfo); 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 USE_GTK 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 } #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"); #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. */); #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 keys Emacs uses for the ctrl modifier. This should be one of the symbols `ctrl', `alt', `hyper', `meta', `super'. For example, `ctrl' means use the Ctrl_L and Ctrl_R keysyms. The default is nil, which is the same as `ctrl'. */); Vx_ctrl_keysym = Qnil; DEFVAR_LISP ("x-alt-keysym", Vx_alt_keysym, doc: /* Which keys Emacs uses for the alt modifier. This should be one of the symbols `ctrl', `alt', `hyper', `meta', `super'. For example, `alt' means use the Alt_L and Alt_R keysyms. The default is nil, which is the same as `alt'. */); Vx_alt_keysym = Qnil; DEFVAR_LISP ("x-hyper-keysym", Vx_hyper_keysym, doc: /* Which keys Emacs uses for the hyper modifier. This should be one of the symbols `ctrl', `alt', `hyper', `meta', `super'. For example, `hyper' means use the Hyper_L and Hyper_R keysyms. The default is nil, which is the same as `hyper'. */); Vx_hyper_keysym = Qnil; DEFVAR_LISP ("x-meta-keysym", Vx_meta_keysym, doc: /* Which keys Emacs uses for the meta modifier. This should be one of the symbols `ctrl', `alt', `hyper', `meta', `super'. For example, `meta' means use the Meta_L and Meta_R keysyms. The default is nil, which is the same as `meta'. */); Vx_meta_keysym = Qnil; DEFVAR_LISP ("x-super-keysym", Vx_super_keysym, doc: /* Which keys Emacs uses for the super modifier. This should be one of the symbols `ctrl', `alt', `hyper', `meta', `super'. For example, `super' means use the Super_L and Super_R keysyms. The default is nil, which is the same as `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, DEFAULT_REHASH_SIZE, DEFAULT_REHASH_THRESHOLD, Qnil, 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 started on an Emacs frame will reliably continue to receive updates even if the finger moves off the frame, but may cause crashes with some window managers and/or external programs. */); 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; }