[gnome-shell] messageTray: don't show the same notification in both locations

[Dan Winship <danw src gnome org>]

commit 10ac42d6ad7369bf72cb96613d43c965266fa8c1
Author: Dan Winship <danw gnome org>
Date:   Wed Apr 7 15:32:47 2010 -0400

    messageTray: don't show the same notification in both locations
    
    If a notification is already being viewed from the summary area, and
    it re-emits 'notify', don't show it a second time in the notification
    area.
    
    https://bugzilla.gnome.org/show_bug.cgi?id=614975

 js/ui/messageTray.js |    3 +++
 1 files changed, 3 insertions(+), 0 deletions(-)
---
diff --git a/js/ui/messageTray.js b/js/ui/messageTray.js
index 7822737..345c630 100644
--- a/js/ui/messageTray.js
+++ b/js/ui/messageTray.js
@@ -596,6 +596,9 @@ MessageTray.prototype = {
     },
 
     _onNotify: function(source, notification) {
+        if (notification == this._summaryNotification)
+            return;
+
         if (this._getNotification(notification.id, source) == null) {
             notification.connect('destroy',
                                  Lang.bind(this, this.removeNotification));