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From: Alan Third <alan@idiocy.org>
To: Andrii Kolomoiets <andreyk.mad@gmail.com>
Cc: 40200@debbugs.gnu.org, 28872@debbugs.gnu.org, aaronjensen@gmail.com
Subject: bug#40200: [PATCH v3] Fix NS frame resizing issues (bug#40200, bug#28872)
Date: Sat, 4 Apr 2020 15:17:49 +0100	[thread overview]
Message-ID: <20200404141749.GA10895@breton.holly.idiocy.org> (raw)
In-Reply-To: <20200328015657.GA66478@breton.holly.idiocy.org>

* src/nsmenu.m (update_frame_tool_bar): Remove reference to
updateFrameSize.
* src/nsterm.h: ([EmacsView updateFrameSize]):
([EmacsView setRows:andColumns:]): Remove unused
method definitions.
(NS_PARENT_WINDOW_LEFT_POS):
(NS_PARENT_WINDOW_TOP_POS): Move to nsterm.m.
* src/nsterm.m (ns_parent_window_rect): New function.
(NS_PARENT_WINDOW_LEFT_POS):
(NS_PARENT_WINDOW_TOP_POS): Move to nsterm.m and simplify.
(ns_set_offset): Fix strange behaviours when using negative values.
(ns_set_window_size):
(ns_set_undecorated):
([EmacsView windowDidResize:]):
([EmacsView windowDidExitFullScreen]):
(ns_judge_scroll_bars): Remove references to updateFrameSize.
([EmacsView dealloc]): Unset resize notification and release buffer.
([EmacsView updateFrameSize:]): Remove function.
([EmacsView windowWillResize:toSize:]): Move some code to
viewDidResize.
([EmacsView viewDidResize]): New function.
([EmacsView initFrameFromEmacs:]): Set up resize notification and move
buffer creation until after the prerequisite objects are created.
([EmacsView toggleFullScreen:]): Set frame to the size of the
contentview, not the whole window, and remove reference to
updateFrameSize.
([EmacsView setRows:andColumns:]): Remove unused method.
([EmacsView windowDidMove:]): Tidy up.
---
Once again, I think this is right. Please test and let me know how you
get on.

src/nsmenu.m |   2 -
 src/nsterm.h |  15 ---
 src/nsterm.m | 309 +++++++++++++++++++++++----------------------------
 3 files changed, 142 insertions(+), 184 deletions(-)

diff --git a/src/nsmenu.m b/src/nsmenu.m
index 67f9a45a40..b7e4cbd565 100644
--- a/src/nsmenu.m
+++ b/src/nsmenu.m
@@ -1141,8 +1141,6 @@ - (Lisp_Object)runMenuAt: (NSPoint)p forFrame: (struct frame *)f
     }
 #endif
 
-  if (oldh != FRAME_TOOLBAR_HEIGHT (f))
-    [view updateFrameSize:YES];
   if (view->wait_for_tool_bar && FRAME_TOOLBAR_HEIGHT (f) > 0)
     {
       view->wait_for_tool_bar = NO;
diff --git a/src/nsterm.h b/src/nsterm.h
index 8396a542f7..e142dbd4f0 100644
--- a/src/nsterm.h
+++ b/src/nsterm.h
@@ -439,7 +439,6 @@ #define NS_DRAW_TO_BUFFER 1
 #endif
 @public
    struct frame *emacsframe;
-   int rows, cols;
    int scrollbarsNeedingUpdate;
    EmacsToolbar *toolbar;
    NSRect ns_userRect;
@@ -458,11 +457,9 @@ #define NS_DRAW_TO_BUFFER 1
 /* Emacs-side interface */
 - (instancetype) initFrameFromEmacs: (struct frame *) f;
 - (void) createToolbar: (struct frame *)f;
-- (void) setRows: (int) r andColumns: (int) c;
 - (void) setWindowClosing: (BOOL)closing;
 - (EmacsToolbar *) toolbar;
 - (void) deleteWorkingText;
-- (void) updateFrameSize: (BOOL) delay;
 - (void) handleFS;
 - (void) setFSValue: (int)value;
 - (void) toggleFullScreen: (id) sender;
@@ -1084,18 +1081,6 @@ #define NS_SCROLL_BAR_ADJUST_HORIZONTALLY(w, f)		\
    (FRAME_SCROLL_BAR_LINES (f) * FRAME_LINE_HEIGHT (f)	\
     - NS_SCROLL_BAR_HEIGHT (f)) : 0)
 
-/* Calculate system coordinates of the left and top of the parent
-   window or, if there is no parent window, the screen.  */
-#define NS_PARENT_WINDOW_LEFT_POS(f)                                    \
-  (FRAME_PARENT_FRAME (f) != NULL                                       \
-   ? [FRAME_NS_VIEW (FRAME_PARENT_FRAME (f)) window].frame.origin.x : 0)
-#define NS_PARENT_WINDOW_TOP_POS(f)                                     \
-  (FRAME_PARENT_FRAME (f) != NULL                                       \
-   ? ([FRAME_NS_VIEW (FRAME_PARENT_FRAME (f)) window].frame.origin.y    \
-      + [FRAME_NS_VIEW (FRAME_PARENT_FRAME (f)) window].frame.size.height \
-      - FRAME_NS_TITLEBAR_HEIGHT (FRAME_PARENT_FRAME (f)))              \
-   : [[[NSScreen screens] objectAtIndex: 0] frame].size.height)
-
 #define FRAME_NS_FONT_TABLE(f) (FRAME_DISPLAY_INFO (f)->font_table)
 
 #define FRAME_FONTSET(f) ((f)->output_data.ns->fontset)
diff --git a/src/nsterm.m b/src/nsterm.m
index 04fc051223..461431622f 100644
--- a/src/nsterm.m
+++ b/src/nsterm.m
@@ -843,6 +843,32 @@ Free a pool and temporary objects it refers to (callable from C)
 }
 
 
+/* Get the frame rect, in system coordinates, of the parent window or,
+   if there is no parent window, the main screen.  */
+static inline NSRect
+ns_parent_window_rect (struct frame *f)
+{
+  NSRect parentRect;
+
+  if (FRAME_PARENT_FRAME (f) != NULL)
+    {
+      EmacsView *parentView = FRAME_NS_VIEW (FRAME_PARENT_FRAME (f));
+      parentRect = [parentView convertRect:[parentView frame]
+                                    toView:nil];
+      parentRect = [[parentView window] convertRectToScreen:parentRect];
+    }
+  else
+    parentRect = [[[NSScreen screens] objectAtIndex:0] frame];
+
+  return parentRect;
+}
+
+/* Calculate system coordinates of the left and top of the parent
+   window or, if there is no parent window, the main screen.  */
+#define NS_PARENT_WINDOW_LEFT_POS(f) NSMinX (ns_parent_window_rect (f))
+#define NS_PARENT_WINDOW_TOP_POS(f) NSMaxY (ns_parent_window_rect (f))
+
+
 static NSRect
 ns_row_rect (struct window *w, struct glyph_row *row,
                enum glyph_row_area area)
@@ -1741,61 +1767,64 @@ Hide the window (X11 semantics)
    -------------------------------------------------------------------------- */
 {
   NSView *view = FRAME_NS_VIEW (f);
-  NSScreen *screen = [[view window] screen];
+  NSRect windowFrame = [[view window] frame];
+  NSPoint topLeft;
 
   NSTRACE ("ns_set_offset");
 
   block_input ();
 
-  f->left_pos = xoff;
-  f->top_pos = yoff;
+  if (FRAME_PARENT_FRAME (f))
+    {
+      /* Convert the parent frame's view rectangle into screen
+         coords.  */
+      EmacsView *parentView = FRAME_NS_VIEW (FRAME_PARENT_FRAME (f));
+      NSRect parentRect = [parentView convertRect:[parentView frame]
+                                           toView:nil];
+      parentRect = [[parentView window] convertRectToScreen:parentRect];
+
+      if (f->size_hint_flags & XNegative)
+        topLeft.x = NSMaxX (parentRect) - NSWidth (windowFrame) + xoff;
+      else
+        topLeft.x = NSMinX (parentRect) + xoff;
 
-  if (view != nil)
+      if (f->size_hint_flags & YNegative)
+        topLeft.y = NSMinY (parentRect) + NSHeight (windowFrame) - yoff;
+      else
+        topLeft.y = NSMaxY (parentRect) - yoff;
+    }
+  else
     {
-      if (FRAME_PARENT_FRAME (f) == NULL && screen)
-        {
-          f->left_pos = f->size_hint_flags & XNegative
-            ? [screen visibleFrame].size.width + f->left_pos - FRAME_PIXEL_WIDTH (f)
-            : f->left_pos;
-          /* We use visibleFrame here to take menu bar into account.
-             Ideally we should also adjust left/top with visibleFrame.origin.  */
-
-          f->top_pos = f->size_hint_flags & YNegative
-            ? ([screen visibleFrame].size.height + f->top_pos
-               - FRAME_PIXEL_HEIGHT (f) - FRAME_NS_TITLEBAR_HEIGHT (f)
-               - FRAME_TOOLBAR_HEIGHT (f))
-            : f->top_pos;
-#ifdef NS_IMPL_GNUSTEP
-	  if (f->left_pos < 100)
-	    f->left_pos = 100;  /* don't overlap menu */
-#endif
-        }
-      else if (FRAME_PARENT_FRAME (f) != NULL)
-        {
-          struct frame *parent = FRAME_PARENT_FRAME (f);
+      /* If there is no parent frame then just convert to screen
+         coordinates, UNLESS we have negative values, in which case I
+         think it's best to position from the bottom and right of the
+         current screen rather than the main screen or whole
+         display.  */
+      NSRect screenFrame = [[[view window] screen] frame];
 
-          /* On X negative values for child frames always result in
-             positioning relative to the bottom right corner of the
-             parent frame.  */
-          if (f->left_pos < 0)
-            f->left_pos = FRAME_PIXEL_WIDTH (parent) - FRAME_PIXEL_WIDTH (f) + f->left_pos;
+      if (f->size_hint_flags & XNegative)
+        topLeft.x = NSMaxX (screenFrame) - NSWidth (windowFrame) + xoff;
+      else
+        topLeft.x = xoff;
 
-          if (f->top_pos < 0)
-            f->top_pos = FRAME_PIXEL_HEIGHT (parent) + FRAME_TOOLBAR_HEIGHT (parent)
-              - FRAME_PIXEL_HEIGHT (f) + f->top_pos;
-        }
+      if (f->size_hint_flags & YNegative)
+        topLeft.y = NSMinY (screenFrame) + NSHeight (windowFrame) - yoff;
+      else
+        topLeft.y = NSMaxY ([[[NSScreen screens] objectAtIndex:0] frame]) - yoff;
+
+#ifdef NS_IMPL_GNUSTEP
+      /* Don't overlap the menu.
 
-      /* Constrain the setFrameTopLeftPoint so we don't move behind the
-         menu bar.  */
-      NSPoint pt = NSMakePoint (SCREENMAXBOUND (f->left_pos
-                                                + NS_PARENT_WINDOW_LEFT_POS (f)),
-                                SCREENMAXBOUND (NS_PARENT_WINDOW_TOP_POS (f)
-                                                - f->top_pos));
-      NSTRACE_POINT ("setFrameTopLeftPoint", pt);
-      [[view window] setFrameTopLeftPoint: pt];
-      f->size_hint_flags &= ~(XNegative|YNegative);
+         FIXME: Surely there's a better way than just hardcoding 100
+         in here?  */
+      boundsRect.origin.x = 100;
+#endif
     }
 
+  NSTRACE_POINT ("setFrameTopLeftPoint", topLeft);
+  [[view window] setFrameTopLeftPoint:topLeft];
+  f->size_hint_flags &= ~(XNegative|YNegative);
+
   unblock_input ();
 }
 
@@ -1864,7 +1893,6 @@ Hide the window (X11 semantics)
 
   [window setFrame: wr display: YES];
 
-  [view updateFrameSize: NO];
   unblock_input ();
 }
 
@@ -1913,7 +1941,6 @@ Hide the window (X11 semantics)
          so some key presses (TAB) are swallowed by the system.  */
       [window makeFirstResponder: view];
 
-      [view updateFrameSize: NO];
       unblock_input ();
     }
 }
@@ -5024,9 +5051,6 @@ in certain situations (rapid incoming events).
       if ([view judge])
         removed = YES;
     }
-
-  if (removed)
-    [eview updateFrameSize: NO];
 }
 
 /* ==========================================================================
@@ -6198,6 +6222,15 @@ - (void) setWindowClosing: (BOOL)closing
 - (void)dealloc
 {
   NSTRACE ("[EmacsView dealloc]");
+
+  /* Clear the view resize notification.  */
+  [[NSNotificationCenter defaultCenter]
+    removeObserver:self
+              name:NSViewFrameDidChangeNotification
+            object:nil];
+
+  CGContextRelease (drawingBuffer);
+
   [toolbar release];
   if (fs_state == FULLSCREEN_BOTH)
     [nonfs_window release];
@@ -7039,108 +7072,12 @@ - (BOOL)windowShouldClose: (id)sender
   return NO;
 }
 
-- (void) updateFrameSize: (BOOL) delay
-{
-  NSWindow *window = [self window];
-  NSRect wr = [window frame];
-  int extra = 0;
-  int oldc = cols, oldr = rows;
-  int oldw = FRAME_PIXEL_WIDTH (emacsframe);
-  int oldh = FRAME_PIXEL_HEIGHT (emacsframe);
-  int neww, newh;
-
-  NSTRACE ("[EmacsView updateFrameSize:]");
-  NSTRACE_SIZE ("Original size", NSMakeSize (oldw, oldh));
-  NSTRACE_RECT ("Original frame", wr);
-  NSTRACE_MSG  ("Original columns: %d", cols);
-  NSTRACE_MSG  ("Original rows: %d", rows);
-
-  if (! [self isFullscreen])
-    {
-      int toolbar_height;
-#ifdef NS_IMPL_GNUSTEP
-      // GNUstep does not always update the tool bar height.  Force it.
-      if (toolbar && [toolbar isVisible])
-          update_frame_tool_bar (emacsframe);
-#endif
-
-      toolbar_height = FRAME_TOOLBAR_HEIGHT (emacsframe);
-      if (toolbar_height < 0)
-        toolbar_height = 35;
-
-      extra = FRAME_NS_TITLEBAR_HEIGHT (emacsframe)
-        + toolbar_height;
-    }
-
-  if (wait_for_tool_bar)
-    {
-      /* The toolbar height is always 0 in fullscreen and undecorated
-         frames, so don't wait for it to become available.  */
-      if (FRAME_TOOLBAR_HEIGHT (emacsframe) == 0
-          && FRAME_UNDECORATED (emacsframe) == false
-          && ! [self isFullscreen])
-        {
-          NSTRACE_MSG ("Waiting for toolbar");
-          return;
-        }
-      wait_for_tool_bar = NO;
-    }
-
-  neww = (int)wr.size.width - emacsframe->border_width;
-  newh = (int)wr.size.height - extra;
-
-  NSTRACE_SIZE ("New size", NSMakeSize (neww, newh));
-  NSTRACE_MSG ("FRAME_TOOLBAR_HEIGHT: %d", FRAME_TOOLBAR_HEIGHT (emacsframe));
-  NSTRACE_MSG ("FRAME_NS_TITLEBAR_HEIGHT: %d", FRAME_NS_TITLEBAR_HEIGHT (emacsframe));
-
-  cols = FRAME_PIXEL_WIDTH_TO_TEXT_COLS (emacsframe, neww);
-  rows = FRAME_PIXEL_HEIGHT_TO_TEXT_LINES (emacsframe, newh);
-
-  if (cols < MINWIDTH)
-    cols = MINWIDTH;
-
-  if (rows < MINHEIGHT)
-    rows = MINHEIGHT;
-
-  NSTRACE_MSG ("New columns: %d", cols);
-  NSTRACE_MSG ("New rows: %d", rows);
-
-  if (oldr != rows || oldc != cols || neww != oldw || newh != oldh)
-    {
-      NSView *view = FRAME_NS_VIEW (emacsframe);
-
-      change_frame_size (emacsframe,
-                         FRAME_PIXEL_TO_TEXT_WIDTH (emacsframe, neww),
-                         FRAME_PIXEL_TO_TEXT_HEIGHT (emacsframe, newh),
-                         0, delay, 0, 1);
-      SET_FRAME_GARBAGED (emacsframe);
-      cancel_mouse_face (emacsframe);
-
-      /* The next two lines set the frame to the same size as we've
-         already set above.  We need to do this when we switch back
-         from non-native fullscreen, in other circumstances it appears
-         to be a noop.  (bug#28872) */
-      wr = NSMakeRect (0, 0, neww, newh);
-      [view setFrame: wr];
-#ifdef NS_DRAW_TO_BUFFER
-      [self createDrawingBuffer];
-#endif
-
-      // To do: consider using [NSNotificationCenter postNotificationName:].
-      [self windowDidMove: // Update top/left.
-	      [NSNotification notificationWithName:NSWindowDidMoveNotification
-					    object:[view window]]];
-    }
-  else
-    {
-      NSTRACE_MSG ("No change");
-    }
-}
 
 - (NSSize)windowWillResize: (NSWindow *)sender toSize: (NSSize)frameSize
 /* Normalize frame to gridded text size.  */
 {
   int extra = 0;
+  int cols, rows;
 
   NSTRACE ("[EmacsView windowWillResize:toSize: " NSTRACE_FMT_SIZE "]",
            NSTRACE_ARG_SIZE (frameSize));
@@ -7277,11 +7214,6 @@ - (void)windowDidResize: (NSNotification *)notification
   sz = [self windowWillResize: theWindow toSize: sz];
 #endif /* NS_IMPL_GNUSTEP */
 
-  if (cols > 0 && rows > 0)
-    {
-      [self updateFrameSize: YES];
-    }
-
   ns_send_appdefined (-1);
 }
 
@@ -7302,6 +7234,51 @@ - (void)viewDidEndLiveResize
 #endif /* NS_IMPL_COCOA */
 
 
+- (void)viewDidResize:(NSNotification *)notification
+{
+  NSRect frame = [self frame];
+  int oldw, oldh, neww, newh;
+
+  if (! FRAME_LIVE_P (emacsframe))
+    return;
+
+#ifdef NS_DRAW_TO_BUFFER
+  CGFloat scale = [[self window] backingScaleFactor];
+  oldw = (CGFloat)CGBitmapContextGetWidth (drawingBuffer) / scale;
+  oldh = (CGFloat)CGBitmapContextGetHeight (drawingBuffer) / scale;
+#else
+  oldw = FRAME_PIXEL_WIDTH (emacsframe);
+  oldh = FRAME_PIXEL_HEIGHT (emacsframe);
+#endif
+  neww = (int)NSWidth (frame);
+  newh = (int)NSHeight (frame);
+
+  NSTRACE ("[EmacsView viewDidResize]");
+
+  /* Don't want to do anything when the view size hasn't changed. */
+  if ((oldh == newh && oldw == neww))
+    {
+      NSTRACE_MSG ("No change");
+      return;
+    }
+
+  NSTRACE_SIZE ("Original size", NSMakeSize (oldw, oldh));
+  NSTRACE_SIZE ("New size", NSMakeSize (neww, newh));
+
+  change_frame_size (emacsframe,
+                     FRAME_PIXEL_TO_TEXT_WIDTH (emacsframe, neww),
+                     FRAME_PIXEL_TO_TEXT_HEIGHT (emacsframe, newh),
+                     0, YES, 0, 1);
+
+#ifdef NS_DRAW_TO_BUFFER
+  [self createDrawingBuffer];
+#endif
+  ns_clear_frame (emacsframe);
+  SET_FRAME_GARBAGED (emacsframe);
+  cancel_mouse_face (emacsframe);
+}
+
+
 - (void)windowDidBecomeKey: (NSNotification *)notification
 /* cf. x_detect_focus_change(), x_focus_changed(), x_new_focus_frame() */
 {
@@ -7463,10 +7440,6 @@ - (instancetype) initFrameFromEmacs: (struct frame *)f
   maximizing_resize = NO;
 #endif
 
-#ifdef NS_DRAW_TO_BUFFER
-  [self createDrawingBuffer];
-#endif
-
   win = [[EmacsWindow alloc]
             initWithContentRect: r
                       styleMask: (FRAME_UNDECORATED (f)
@@ -7572,6 +7545,17 @@ - (instancetype) initFrameFromEmacs: (struct frame *)f
   [NSApp registerServicesMenuSendTypes: ns_send_types
                            returnTypes: [NSArray array]];
 
+#ifdef NS_DRAW_TO_BUFFER
+  [self createDrawingBuffer];
+#endif
+
+  /* Set up view resize notifications.  */
+  [self setPostsFrameChangedNotifications:YES];
+  [[NSNotificationCenter defaultCenter]
+      addObserver:self
+         selector:@selector (viewDidResize:)
+             name:NSViewFrameDidChangeNotification object:nil];
+
   /* macOS Sierra automatically enables tabbed windows.  We can't
      allow this to be enabled until it's available on a Free system.
      Currently it only happens by accident and is buggy anyway.  */
@@ -7601,9 +7585,8 @@ - (void)windowDidMove: sender
     return;
   if (screen != nil)
     {
-      emacsframe->left_pos = r.origin.x - NS_PARENT_WINDOW_LEFT_POS (emacsframe);
-      emacsframe->top_pos =
-        NS_PARENT_WINDOW_TOP_POS (emacsframe) - (r.origin.y + r.size.height);
+      emacsframe->left_pos = NSMinX (r) - NS_PARENT_WINDOW_LEFT_POS (emacsframe);
+      emacsframe->top_pos = NS_PARENT_WINDOW_TOP_POS (emacsframe) - NSMaxY (r);
 
       // FIXME: after event part below didExitFullScreen is not received
       // if (emacs_event)
@@ -7902,7 +7885,6 @@ - (void)windowDidExitFullScreen /* provided for direct calls */
     {
       [toolbar setVisible:YES];
       update_frame_tool_bar (emacsframe);
-      [self updateFrameSize:YES];
       [[self window] display];
     }
   else
@@ -8115,11 +8097,11 @@ - (void)toggleFullScreen: (id)sender
       // send notifications.
 
       [self windowWillExitFullScreen];
-      [fw setFrame: [w frame] display:YES animate:ns_use_fullscreen_animation];
+      [fw setFrame:[[w contentView] frame]
+                    display:YES animate:ns_use_fullscreen_animation];
       [fw close];
       [w makeKeyAndOrderFront:NSApp];
       [self windowDidExitFullScreen];
-      [self updateFrameSize:YES];
     }
 }
 
@@ -8628,13 +8610,6 @@ - (instancetype)setMiniwindowImage: (BOOL) setMini
 }
 
 
-- (void) setRows: (int) r andColumns: (int) c
-{
-  NSTRACE ("[EmacsView setRows:%d andColumns:%d]", r, c);
-  rows = r;
-  cols = c;
-}
-
 - (int) fullscreenState
 {
   return fs_state;
-- 
2.24.0


-- 
Alan Third





  reply	other threads:[~2020-04-04 14:17 UTC|newest]

Thread overview: 24+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-03-23 18:13 bug#40200: 28.0.50; NS: text drawing glitches in maximized frame with frame-inhibit-implied-resize Andrii Kolomoiets
2020-03-23 19:22 ` Eli Zaretskii
2020-03-23 19:47   ` Andrii Kolomoiets
2020-03-23 23:54 ` Alan Third
2020-03-25 22:28   ` bug#40200: [PATCH] Fix NS frame resizing issues (bug#40200, bug#28872) Alan Third
2020-03-26 17:35     ` bug#28872: " Andrii Kolomoiets
2020-03-26 21:21       ` bug#28872: [PATCH v2] " Alan Third
2020-03-27  9:45         ` Andrii Kolomoiets
2020-03-27 13:22         ` Andrii Kolomoiets
2020-03-28  1:56           ` Alan Third
2020-04-04 14:17             ` Alan Third [this message]
2020-04-06  6:57               ` bug#40200: [PATCH v3] " Andrii Kolomoiets
2020-04-06 18:44                 ` bug#28872: [PATCH v4] " Alan Third
2020-04-07  8:14                   ` bug#40200: " Andrii Kolomoiets
2020-04-16 18:24                     ` bug#28872: " Alan Third
2020-04-18  1:52                       ` bug#40200: " HaiJun Zhang
2020-04-18 12:07                         ` Alan Third
2020-04-18 14:12                           ` HaiJun Zhang
2020-04-18 15:26                             ` Alan Third
2020-04-19  1:49                               ` HaiJun Zhang
2020-05-03 16:26                                 ` Alan Third
2020-05-03 17:13                                   ` Filipp Gunbin
2020-05-03 18:41                                     ` Alan Third
2020-05-03 19:49                                       ` Filipp Gunbin

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