[gnome-shell/wip/fmuellner/notification-redux: 73/88] messageTray: Skip banner mode when queue exceeds a threshold

[Florian Müllner <fmuellner src gnome org>]

commit 7d9b894c90fd2e0bb59f99b8723d19b16037cadf
Author: Florian Müllner <fmuellner gnome org>
Date:   Sat Feb 14 03:18:52 2015 +0100

    messageTray: Skip banner mode when queue exceeds a threshold

 js/ui/messageTray.js |   19 +++++++++++++------
 1 files changed, 13 insertions(+), 6 deletions(-)
---
diff --git a/js/ui/messageTray.js b/js/ui/messageTray.js
index f63be04..2645c44 100644
--- a/js/ui/messageTray.js
+++ b/js/ui/messageTray.js
@@ -29,6 +29,7 @@ const HIDE_TIMEOUT = 0.2;
 const LONGER_HIDE_TIMEOUT = 0.6;
 
 const MAX_NOTIFICATIONS_PER_SOURCE = 3;
+const MAX_NOTIFICATIONS_IN_QUEUE = 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.
@@ -1416,12 +1417,18 @@ const MessageTray = new Lang.Class({
             // we stop hiding it and show it again.
             this._updateShowingNotification();
         } else if (this._notificationQueue.indexOf(notification) < 0) {
-            notification.connect('destroy',
-                                 Lang.bind(this, this._onNotificationDestroy));
-            this._notificationQueue.push(notification);
-            this._notificationQueue.sort(function(notification1, notification2) {
-                return (notification2.urgency - notification1.urgency);
-            });
+            // If the queue is "full", we skip banner mode and just show a small
+            // indicator in the panel; however do make an exception for CRITICAL
+            // notifications, as only banner mode allows expansion.
+            let full = (this._notificationQueue.length >= MAX_NOTIFICATIONS_IN_QUEUE);
+            if (!full || notification.urgency == Urgency.CRITICAL) {
+                notification.connect('destroy',
+                                     Lang.bind(this, this._onNotificationDestroy));
+                this._notificationQueue.push(notification);
+                this._notificationQueue.sort(function(notification1, notification2) {
+                    return (notification2.urgency - notification1.urgency);
+                });
+            }
         }
         this._updateState();
     },