[gnome-shell] dateMenu: Set label_actor for WorldClock button

[Florian Müllner <fmuellner src gnome org>]

commit bb2d7f7e7e6dfc6096472ec0a05f5b2870697e5e
Author: Florian Müllner <fmuellner gnome org>
Date:   Tue Mar 3 23:22:02 2015 +0100

    dateMenu: Set label_actor for WorldClock button
    
    Ideally we would allow navigating into the button in the screen
    reader case, so the configured clocks are read out properly.
    However we can still do better than nothing short-term by pointing
    to the section header as the button's label_actor.
    
    https://bugzilla.gnome.org/show_bug.cgi?id=745393

 js/ui/dateMenu.js |    1 +
 1 files changed, 1 insertions(+), 0 deletions(-)
---
diff --git a/js/ui/dateMenu.js b/js/ui/dateMenu.js
index cd77c41..7307d7d 100644
--- a/js/ui/dateMenu.js
+++ b/js/ui/dateMenu.js
@@ -163,6 +163,7 @@ const WorldClocksSection = new Lang.Class({
                                     x_align: Clutter.ActorAlign.START,
                                     text: title });
         layout.attach(header, 0, 0, 2, 1);
+        this.actor.label_actor = header;
 
         for (let i = 0; i < this._locations.length; i++) {
             let l = this._locations[i].location;