From 7a5a622998a32ef4e420cddfa5369bd630dc8b30 Mon Sep 17 00:00:00 2001
From: Carlos Garcia Campos <cgarcia@igalia.com>
Date: Fri, 26 Nov 2010 09:01:17 +0100
Subject: [PATCH] Check screen really changed before notifying it and
 invalidating the context

---
 gtk/gtkstylecontext.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/gtk/gtkstylecontext.c b/gtk/gtkstylecontext.c
index 2cee5004bc..7e1dd2c8b1 100644
--- a/gtk/gtkstylecontext.c
+++ b/gtk/gtkstylecontext.c
@@ -2556,8 +2556,12 @@ gtk_style_context_set_screen (GtkStyleContext *context,
   GtkStyleContextPrivate *priv;
 
   g_return_if_fail (GTK_IS_STYLE_CONTEXT (context));
+  g_return_if_fail (GDK_IS_SCREEN (screen));
 
   priv = context->priv;
+  if (priv->screen == screen)
+    return;
+
   priv->screen = screen;
 
   g_object_notify (G_OBJECT (context), "screen");
-- 
2.30.2