[gnome-shell/gnome-3-16] messageTray: Emit signal when notifications are enabled/disabled

[Florian Müllner <fmuellner src gnome org>]

commit 3e8b7faab84c82e1bcaf50f5389bd9cc8f00059f
Author: Florian Müllner <fmuellner gnome org>
Date:   Tue May 12 21:27:59 2015 +0200

    messageTray: Emit signal when notifications are enabled/disabled
    
    Since the introduction of per-source notification policy in commit
    098bd4509ba0, the NotificationPolicy::enable-changed signal has been
    used to track the 'enable' setting. However as we never actually
    emitted that signal, this never worked without a restart - oops.
    
    https://bugzilla.gnome.org/show_bug.cgi?id=749279

 js/ui/messageTray.js |    2 ++
 1 files changed, 2 insertions(+), 0 deletions(-)
---
diff --git a/js/ui/messageTray.js b/js/ui/messageTray.js
index 4a949d4..e0d6344 100644
--- a/js/ui/messageTray.js
+++ b/js/ui/messageTray.js
@@ -258,6 +258,8 @@ const NotificationApplicationPolicy = new Lang.Class({
 
     _changed: function(settings, key) {
         this.emit('policy-changed', key);
+        if (key == 'enable')
+            this.emit('enable-changed');
     },
 
     _canonicalizeId: function(id) {