[gtk/wip/chergert/for-4-6: 38/56] macos: clear window stack before requesting motion

[Christian Hergert <chergert src gnome org>]

commit 9dbd79f2d8fc701c02211550b1243775dfe5a97e
Author: Christian Hergert <christian hergert me>
Date:   Wed Mar 2 01:04:53 2022 -0800

    macos: clear window stack before requesting motion
    
    We want to ensure that we recalculate the sort order of windows before
    processing the motion. Generally this would be done in response from the
    display server in GdkMacosWindow, but I've seen it possible to race there.

 gdk/macos/gdkmacossurface.c | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)
---
diff --git a/gdk/macos/gdkmacossurface.c b/gdk/macos/gdkmacossurface.c
index 4357fbf1a9..6c116ed817 100644
--- a/gdk/macos/gdkmacossurface.c
+++ b/gdk/macos/gdkmacossurface.c
@@ -1244,11 +1244,15 @@ _gdk_macos_surface_get_buffer (GdkMacosSurface *self)
 static void
 _gdk_macos_surface_do_delayed_show (GdkMacosSurface *self)
 {
+  GdkSurface *surface = (GdkSurface *)self;
+
   g_assert (GDK_IS_MACOS_SURFACE (self));
 
   self->show_on_next_swap = FALSE;
   [self->window showAndMakeKey:YES];
-  gdk_surface_request_motion (GDK_SURFACE (self));
+
+  _gdk_macos_display_clear_sorting (GDK_MACOS_DISPLAY (surface->display));
+  gdk_surface_request_motion (surface);
 }
 
 void