[gnome-shell] a11y: setting accessible role and label for windows at the overview

[Alejandro Piñeiro Iglesias <apinheiro src gnome org>]

commit df305314c10ac18c77c6707a4f5e50bd41d4adcd
Author: Alejandro Piñeiro <apinheiro igalia com>
Date:   Fri Mar 21 12:49:51 2014 +0100

    a11y: setting accessible role and label for windows at the overview
    
    https://bugzilla.gnome.org/show_bug.cgi?id=726670

 js/ui/workspace.js |    4 ++++
 1 files changed, 4 insertions(+), 0 deletions(-)
---
diff --git a/js/ui/workspace.js b/js/ui/workspace.js
index a4b0c25..f2521c6 100644
--- a/js/ui/workspace.js
+++ b/js/ui/workspace.js
@@ -8,6 +8,8 @@ const Meta = imports.gi.Meta;
 const Pango = imports.gi.Pango;
 const Shell = imports.gi.Shell;
 const St = imports.gi.St;
+const Atk = imports.gi.Atk;
+
 const Signals = imports.signals;
 
 const DND = imports.ui.dnd;
@@ -121,6 +123,7 @@ const WindowClone = new Lang.Class({
         // the hierarchy that is sized to only the visible portion.
         this.actor = new St.Widget({ reactive: true,
                                      can_focus: true,
+                                     accessible_role: Atk.Role.PUSH_BUTTON,
                                      layout_manager: new WindowCloneLayout() });
 
         this.actor.add_child(this._windowClone);
@@ -424,6 +427,7 @@ const WindowOverlay = new Lang.Class({
                                    text: metaWindow.title });
         title.clutter_text.ellipsize = Pango.EllipsizeMode.END;
         title._spacing = 0;
+        windowClone.actor.label_actor = title;
 
         this._updateCaptionId = metaWindow.connect('notify::title',
             Lang.bind(this, function(w) {