[gnome-shell] messageTray: Don't remove and re-add the focus group on button changes

[Jasper St. Pierre <jstpierre src gnome org>]

commit 96aa33f4efdfeea73fd2672dd1f825907350c630
Author: Jasper St. Pierre <jstpierre mecheye net>
Date:   Sun Oct 13 22:53:58 2013 -0400

    messageTray: Don't remove and re-add the focus group on button changes
    
    https://bugzilla.gnome.org/show_bug.cgi?id=710115

 js/ui/messageTray.js |    6 +-----
 1 files changed, 1 insertions(+), 5 deletions(-)
---
diff --git a/js/ui/messageTray.js b/js/ui/messageTray.js
index 76ba60b..c66c9f6 100644
--- a/js/ui/messageTray.js
+++ b/js/ui/messageTray.js
@@ -848,7 +848,6 @@ const Notification = new Lang.Class({
     // %action-invoked signal with @id as a parameter
     addButton: function(id, label) {
         if (!this._buttonBox) {
-
             let box = new St.BoxLayout({ style_class: 'notification-actions' });
             this.setActionArea(box, { x_expand: false,
                                       y_expand: false,
@@ -856,6 +855,7 @@ const Notification = new Lang.Class({
                                       y_fill: false,
                                       x_align: St.Align.END });
             this._buttonBox = box;
+            global.focus_manager.add_group(this._buttonBox);
         }
 
         let button = new St.Button({ can_focus: true });
@@ -870,11 +870,7 @@ const Notification = new Lang.Class({
             button.label = label;
         }
 
-        if (this._buttonBox.get_n_children() > 0)
-            global.focus_manager.remove_group(this._buttonBox);
-
         this._buttonBox.add(button);
-        global.focus_manager.add_group(this._buttonBox);
         button.connect('clicked', Lang.bind(this, this._onActionInvoked, id));
 
         this.updated();