macos: avoid setHasShadow unless shadow changes

diff --git a/gdk/macos/gdkmacossurface.c b/gdk/macos/gdkmacossurface.c
index 7e0c15dfe2468e6a1e8fc04a959f2f096f7a0c66..61e249497ef737c96fa803d1840c876254cba2a1 100644 (file)
--- a/gdk/macos/gdkmacossurface.c
+++ b/gdk/macos/gdkmacossurface.c
@@ -150,6 +150,12 @@ _gdk_macos_surface_set_shadow (GdkMacosSurface *surface,
 
   g_assert (GDK_IS_MACOS_SURFACE (self));
 
+  if (self->shadow_top == top &&
+      self->shadow_right == right &&
+      self->shadow_bottom == bottom &&
+      self->shadow_left == left)
+    return;
+
   self->shadow_top = top;
   self->shadow_right = right;
   self->shadow_bottom = bottom;