[gnome-shell/wip/fmuellner/notification-redux: 122/128] messageTray: Limit number of buttons in banners

[Florian Müllner <fmuellner src gnome org>]

commit e7ad2a325295c38df7f0daa07f967c48745948c5
Author: Florian Müllner <fmuellner gnome org>
Date:   Tue Feb 17 03:53:00 2015 +0100

    messageTray: Limit number of buttons in banners

 js/ui/messageTray.js |    4 ++++
 1 files changed, 4 insertions(+), 0 deletions(-)
---
diff --git a/js/ui/messageTray.js b/js/ui/messageTray.js
index 6fe98bd..2927b2d 100644
--- a/js/ui/messageTray.js
+++ b/js/ui/messageTray.js
@@ -32,6 +32,7 @@ const LONGER_HIDE_TIMEOUT = 0.6;
 
 const MAX_NOTIFICATIONS_PER_SOURCE = 3;
 const MAX_NOTIFICATIONS_IN_QUEUE = 3;
+const MAX_NOTIFICATION_BUTTONS = 3;
 
 // We delay hiding of the tray if the mouse is within MOUSE_LEFT_ACTOR_THRESHOLD
 // range from the point where it left the tray.
@@ -539,6 +540,9 @@ const NotificationBanner = new Lang.Class({
             global.focus_manager.add_group(this._buttonBox);
         }
 
+        if (this._buttonBox.get_n_children() >= MAX_NOTIFICATION_BUTTONS)
+            return null;
+
         this._buttonBox.add(button);
         button.connect('clicked', Lang.bind(this, function() {
             callback();