[gtk/gtk-3-24: 1/2] wayland: Bail loudly if invalid geometry is set

[Matthias Clasen <matthiasc src gnome org>]

commit ba3156097001659df7c60e717c9afa6a4aa2e891
Author: Jonas Ådahl <jadahl gmail com>
Date:   Wed Nov 11 10:17:59 2020 +0100

    wayland: Bail loudly if invalid geometry is set
    
    There is some bug somewhere where the geometry ends up being correct.
    Mutter didn't handle this gracefully, and is to be changed to simply
    respect the protocol and error out the client that sends bogus data.
    
    Prepare for this by instead of sending bogus data, complain loudly if it
    would happen dropping the invalid geometry on the floor instead of
    sending it.
    
    Related: https://gitlab.gnome.org/GNOME/mutter/-/issues/1527

 gdk/wayland/gdkwindow-wayland.c | 3 +++
 1 file changed, 3 insertions(+)
---
diff --git a/gdk/wayland/gdkwindow-wayland.c b/gdk/wayland/gdkwindow-wayland.c
index 045368797d..811b37ce5c 100644
--- a/gdk/wayland/gdkwindow-wayland.c
+++ b/gdk/wayland/gdkwindow-wayland.c
@@ -1349,6 +1349,9 @@ gdk_wayland_window_sync_margin (GdkWindow *window)
     return;
 
   gdk_wayland_window_get_window_geometry (window, &geometry);
+
+  g_return_if_fail (geometry.width > 0 && geometry.height > 0);
+
   gdk_window_set_geometry_hints (window,
                                  &impl->geometry_hints,
                                  impl->geometry_mask);