Make gdk_x11_window_set_theme_variant do nothing for non-toplevels

This avoids problems when calling this e.g. on offscreen windows.

diff --git a/gdk/x11/gdkwindow-x11.c b/gdk/x11/gdkwindow-x11.c
index fd62e4caadc47355c9d868a23141318ff7228f8f..78ec0a49926438e0b4d7db8d470eafffa09027f8 100644 (file)
--- a/gdk/x11/gdkwindow-x11.c
+++ b/gdk/x11/gdkwindow-x11.c
@@ -3107,7 +3107,12 @@ void
 gdk_x11_window_set_theme_variant (GdkWindow *window,
                                   char      *variant)
 {
-  GdkDisplay *display = gdk_window_get_display (window);
+  GdkDisplay *display;
+
+  if (!WINDOW_IS_TOPLEVEL (window))
+    return;
+
+  display = gdk_window_get_display (window);
 
   if (variant != NULL)
     {