[gtk/wip.win32.fixes: 1/2] GDK-Win32: Force toplevel surfaces to configure as needed




commit c007fc1638fb19072567107f2ef94713be083930
Author: Chun-wei Fan <fanchunwei src gnome org>
Date:   Thu Jul 1 18:21:29 2021 +0800

    GDK-Win32: Force toplevel surfaces to configure as needed
    
    If the toplevel surface has already been initially created and
    presented, ensure that it will always undergo configuration for sizing,
    unless that surface underwent an AeroSnap operation, or is being
    minimized.
    
    This fixes issues #3799 and #3728.

 gdk/win32/gdkevents-win32.c  | 19 ++++++++++++++-----
 gdk/win32/gdksurface-win32.c | 35 ++++++++++++++++++++++++++++++++++-
 gdk/win32/gdksurface-win32.h |  1 +
 3 files changed, 49 insertions(+), 6 deletions(-)
---
diff --git a/gdk/win32/gdkevents-win32.c b/gdk/win32/gdkevents-win32.c
index 808354c4ae..2be0aac319 100644
--- a/gdk/win32/gdkevents-win32.c
+++ b/gdk/win32/gdkevents-win32.c
@@ -2807,6 +2807,7 @@ gdk_event_translate (MSG *msg,
          GdkToplevelState set_bits, unset_bits, old_state, new_state;
 
          old_state = window->state;
+         impl = GDK_WIN32_SURFACE (window);
 
          set_bits = 0;
          unset_bits = 0;
@@ -2822,13 +2823,21 @@ gdk_event_translate (MSG *msg,
            unset_bits |= GDK_TOPLEVEL_STATE_MAXIMIZED;
 
       /*
-       * If we are minizing, pause all surface layout computations, and re-start the
-       * computation once we are coming out of a minimized state
+       * If we are minizing, pause all surface layout computations.
+       * Once we are coming out of the minimized state,
+       * gdk_toplevel_present() will reenable the layout computations
+       * for us.
        */
-      if (!(old_state & GDK_TOPLEVEL_STATE_MINIMIZED) && set_bits & GDK_TOPLEVEL_STATE_MINIMIZED)
-        gdk_surface_freeze_updates (window);
+      if (!(old_state & GDK_TOPLEVEL_STATE_MINIMIZED) &&
+          set_bits & GDK_TOPLEVEL_STATE_MINIMIZED)
+        {
+          impl->drag_move_resize_context.native_move_resize_pending = FALSE;
+          impl->toplevel_force_resize = FALSE;
+          gdk_surface_freeze_updates (window);
+        }
 
-      if (old_state & GDK_TOPLEVEL_STATE_MINIMIZED && unset_bits & GDK_TOPLEVEL_STATE_MINIMIZED)
+      if (old_state & GDK_TOPLEVEL_STATE_MINIMIZED &&
+          unset_bits & GDK_TOPLEVEL_STATE_MINIMIZED)
         gdk_surface_thaw_updates (window);
 
          gdk_surface_set_is_mapped (window, !!IsWindowVisible (msg->hwnd));
diff --git a/gdk/win32/gdksurface-win32.c b/gdk/win32/gdksurface-win32.c
index bca73c6edb..e9da5f6701 100644
--- a/gdk/win32/gdksurface-win32.c
+++ b/gdk/win32/gdksurface-win32.c
@@ -2205,6 +2205,12 @@ unsnap (GdkSurface  *window,
 
   GDK_NOTE (MISC, g_print ("Unsnapped window size %d x %d @ %d : %d\n", rect.width, rect.height, rect.x, 
rect.y));
 
+  if (GDK_IS_TOPLEVEL (window))
+    {
+      impl->drag_move_resize_context.native_move_resize_pending = FALSE;
+      impl->toplevel_force_resize = FALSE;
+    }
+
   gdk_win32_surface_move_resize (window, rect.x, rect.y,
                                  rect.width, rect.height);
 
@@ -2319,6 +2325,12 @@ snap_up (GdkSurface *window)
    */
   compute_toplevel_size (window, TRUE, &width, &height);
 
+  if (GDK_IS_TOPLEVEL (window))
+    {
+      impl->drag_move_resize_context.native_move_resize_pending = FALSE;
+      impl->toplevel_force_resize = FALSE;
+    }
+
   gdk_win32_surface_move_resize (window, x, y, width, height);
 }
 
@@ -2345,6 +2357,12 @@ snap_left (GdkSurface  *window,
   rect.width = rect.width + impl->shadow_x;
   rect.height = rect.height + impl->shadow_y;
 
+  if (GDK_IS_TOPLEVEL (window))
+    {
+      impl->drag_move_resize_context.native_move_resize_pending = FALSE;
+      impl->toplevel_force_resize = FALSE;
+    }
+
   gdk_win32_surface_move_resize (window,
                                  rect.x, rect.y,
                                  rect.width, rect.height);
@@ -2374,6 +2392,12 @@ snap_right (GdkSurface  *window,
   rect.width = rect.width + impl->shadow_x;
   rect.height = rect.height + impl->shadow_y;
 
+  if (GDK_IS_TOPLEVEL (window))
+    {
+      impl->drag_move_resize_context.native_move_resize_pending = FALSE;
+      impl->toplevel_force_resize = FALSE;
+    }
+
   gdk_win32_surface_move_resize (window,
                                  rect.x, rect.y,
                                  rect.width, rect.height);
@@ -4563,6 +4587,7 @@ _gdk_win32_surface_request_layout (GdkSurface *surface)
     {
       _gdk_win32_get_window_rect (surface, &rect);
 
+      impl->next_layout.configured_rect = rect;
       impl->next_layout.configured_width = (rect.right - rect.left + scale - 1) / scale;
       impl->next_layout.configured_height = (rect.bottom - rect.top + scale - 1) / scale;
 
@@ -4570,6 +4595,14 @@ _gdk_win32_surface_request_layout (GdkSurface *surface)
         {
           surface->x = rect.left / scale;
           surface->y = rect.top / scale;
+
+          /*
+           * We force a resize of the toplevel if it is not just created/
+           * presented and it did not just undergo an AeroSnap op and it
+           * was not minimized.
+           */
+          if (impl->toplevel_force_resize)
+            impl->drag_move_resize_context.native_move_resize_pending = TRUE;
         }
       else if (GDK_IS_POPUP (surface))
         {
@@ -4593,7 +4626,6 @@ _gdk_win32_surface_compute_size (GdkSurface *surface)
     {
       surface->width = impl->next_layout.configured_width;
       surface->height = impl->next_layout.configured_height;
-
       _gdk_surface_update_size (surface);
     }
 
@@ -4948,6 +4980,7 @@ gdk_win32_toplevel_present (GdkToplevel       *toplevel,
 
   gdk_win32_surface_show (surface, FALSE);
   maybe_notify_mapped (surface);
+  impl->toplevel_force_resize = TRUE;
 }
 
 static gboolean
diff --git a/gdk/win32/gdksurface-win32.h b/gdk/win32/gdksurface-win32.h
index 5f85c50373..2e29427a4f 100644
--- a/gdk/win32/gdksurface-win32.h
+++ b/gdk/win32/gdksurface-win32.h
@@ -337,6 +337,7 @@ struct _GdkWin32Surface
   int surface_scale;
 
   GdkToplevelLayout *toplevel_layout;
+  gboolean toplevel_force_resize;
   struct {
     int configured_width;
     int configured_height;


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