From 024ab39c6d1d23887411da7117a721f2ec0733e4 Mon Sep 17 00:00:00 2001
From: Dan Winship <danw@gnome.org>
Date: Thu, 29 Apr 2010 15:06:51 -0400
Subject: [PATCH] [MessageTray] don't time out the tray if the user is mousing
 towards it

If a notification is about to hide, but the user has moved the mouse
towards it, let it stick around for another second (and so on, until
the mouse either reaches the tray and causes it to be pinned, or stops
moving the mouse toward it).

https://bugzilla.gnome.org/show_bug.cgi?id=610071
---
 js/ui/messageTray.js | 20 ++++++++++++++++++--
 1 file changed, 18 insertions(+), 2 deletions(-)

diff --git a/js/ui/messageTray.js b/js/ui/messageTray.js
index df695e882..a9c58c08a 100644
--- a/js/ui/messageTray.js
+++ b/js/ui/messageTray.js
@@ -820,6 +820,9 @@ MessageTray.prototype = {
             // tween, and so the onComplete will remain as well.
             this._expandNotification();
         }
+
+        let [x, y, mods] = global.get_pointer();
+        this._lastSeenMouseY = y;
     },
 
     _showNotificationCompleted: function() {
@@ -829,8 +832,21 @@ MessageTray.prototype = {
     },
 
     _notificationTimeout: function() {
-        this._notificationTimeoutId = 0;
-        this._updateState();
+        let [x, y, mods] = global.get_pointer();
+        if (y > this._lastSeenMouseY + 10 && y < this.actor.y) {
+            // The mouse is moving towards the notification, so don't
+            // hide it yet. (We just create a new timeout (and destroy
+            // the old one) each time because the bookkeeping is
+            // simpler.)
+            this._lastSeenMouseY = y;
+            this._notificationTimeoutId =
+                Mainloop.timeout_add(1000,
+                                     Lang.bind(this, this._notificationTimeout));
+        } else {
+            this._notificationTimeoutId = 0;
+            this._updateState();
+        }
+
         return false;
     },