[gnome-shell] workspaceThumbnail: Enable activation of window clones on touch

[Carlos Garnacho <carlosg src gnome org>]

commit 06f78549bd2d67926af055fa0d2c7bb773845d64
Author: Carlos Garnacho <carlosg gnome org>
Date:   Fri Oct 16 18:12:45 2015 +0200

    workspaceThumbnail: Enable activation of window clones on touch
    
    We must handle the TOUCH_END event separately for the evdev input
    backend.
    
    https://bugzilla.gnome.org/show_bug.cgi?id=756748

 js/ui/workspaceThumbnail.js |   11 +++++++++++
 1 files changed, 11 insertions(+), 0 deletions(-)
---
diff --git a/js/ui/workspaceThumbnail.js b/js/ui/workspaceThumbnail.js
index df8bc55..3b650ba 100644
--- a/js/ui/workspaceThumbnail.js
+++ b/js/ui/workspaceThumbnail.js
@@ -80,6 +80,8 @@ const WindowClone = new Lang.Class({
 
         this.actor.connect('button-release-event',
                            Lang.bind(this, this._onButtonRelease));
+        this.actor.connect('touch-event',
+                           Lang.bind(this, this._onTouchEvent));
 
         this.actor.connect('destroy', Lang.bind(this, this._onDestroy));
 
@@ -200,6 +202,15 @@ const WindowClone = new Lang.Class({
         return Clutter.EVENT_STOP;
     },
 
+    _onTouchEvent : function (actor, event) {
+        if (event.type() != Clutter.EventType.TOUCH_END ||
+            !global.display.is_pointer_emulating_sequence(event.get_event_sequence()))
+            return Clutter.EVENT_PROPAGATE;
+
+        this.emit('selected', event.get_time());
+        return Clutter.EVENT_STOP;
+    },
+
     _onDragBegin : function (draggable, time) {
         this.inDrag = true;
         this.emit('drag-begin');