[gnome-shell] MoreLink: Ignore calls to activate() if the actor isn't visible

[Siegfried-Angel Gevatter Pujals <sgevatter src gnome org>]

commit 5cb2ea04f7e8c2eb146763cfe701a2461d17053f
Author: Siegfried-Angel Gevatter Pujals <rainct ubuntu com>
Date:   Tue Jul 27 16:54:58 2010 +0200

    MoreLink: Ignore calls to activate() if the actor isn't visible
    
    This fixes (another time) the bug about the "Recent Items" label
    being clickable when there are no items.
    
    https://bugzilla.gnome.org/show_bug.cgi?id=582037

 js/ui/dash.js |    3 +++
 1 files changed, 3 insertions(+), 0 deletions(-)
---
diff --git a/js/ui/dash.js b/js/ui/dash.js
index 4971e81..982e9c7 100644
--- a/js/ui/dash.js
+++ b/js/ui/dash.js
@@ -583,6 +583,9 @@ MoreLink.prototype = {
     },
 
     activate: function() {
+        if (!this.actor.visible)
+            return true; // If the link isn't visible we don't want the header to react
+                         // to clicks
         if (this.pane == null) {
             // Ensure the pane is created; the activated handler will call setPane
             this.emit('activated');