[gnome-shell] messageTray: Don't allow opening while entering/leaving the overview

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

commit ee62863759a212caccba5de29dcea5d90baeb7ff
Author: Jasper St. Pierre <jstpierre mecheye net>
Date:   Sun Feb 17 14:26:04 2013 -0500

    messageTray: Don't allow opening while entering/leaving the overview
    
    The complex overview transition code means that there's no easy
    way to handle with this right now. Blocking the message tray
    while the overview is animating seems like the correct thing to do.
    
    https://bugzilla.gnome.org/show_bug.cgi?id=694038

 js/ui/messageTray.js |   11 +++++++++--
 1 files changed, 9 insertions(+), 2 deletions(-)
---
diff --git a/js/ui/messageTray.js b/js/ui/messageTray.js
index 16064eb..eb63266 100644
--- a/js/ui/messageTray.js
+++ b/js/ui/messageTray.js
@@ -2031,18 +2031,25 @@ const MessageTray = new Lang.Class({
     },
 
     openTray: function() {
+        if (Main.overview.animationInProgress)
+            return;
+
         this._traySummoned = true;
         this._updateState();
     },
 
     toggle: function() {
+        if (Main.overview.animationInProgress)
+            return false;
+
         this._traySummoned = !this._traySummoned;
         this._updateState();
+        return true;
     },
 
     toggleAndNavigate: function() {
-        this.toggle();
-        this._summary.navigate_focus(null, Gtk.DirectionType.TAB_FORWARD, false);
+        if (this.toggle())
+            this._summary.navigate_focus(null, Gtk.DirectionType.TAB_FORWARD, false);
     },
 
     hide: function() {