From 6c0f48ce25d0c275928ef2d476cc09c33505ffea Mon Sep 17 00:00:00 2001
From: "Jasper St. Pierre" <jstpierre@mecheye.net>
Date: Fri, 15 Mar 2013 14:54:22 -0400
Subject: [PATCH] layout: Only emit fullscreen-changed if things actually
 changed

This prevents the message tray from doing a lot of work that
it doesn't need to.
---
 js/ui/layout.js | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/js/ui/layout.js b/js/ui/layout.js
index 1fff9cc53..32b65e603 100644
--- a/js/ui/layout.js
+++ b/js/ui/layout.js
@@ -1066,7 +1066,8 @@ const LayoutManager = new Lang.Class({
             }
         }
 
-        this.emit('fullscreen-changed');
+        if (changed)
+            this.emit('fullscreen-changed');
     },
 
     _updateRegions: function() {