[gnome-shell] workspacesView: Return from overview when tapping on an empty workspace

[Carlos Garnacho <carlosg src gnome org>]

commit ffa8c2f2b10080d98fd004fb172b1b4554c10424
Author: Carlos Garnacho <carlosg gnome org>
Date:   Fri Oct 16 18:00:01 2015 +0200

    workspacesView: Return from overview when tapping on an empty workspace
    
    This works for pointers and touch on X11, there is however no pointer
    emulation on evdev, so touch triggers ::clicked with button==0 which
    is ignored.
    
    https://bugzilla.gnome.org/show_bug.cgi?id=756748

 js/ui/workspacesView.js |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/js/ui/workspacesView.js b/js/ui/workspacesView.js
index e2b585d..e0c9249 100644
--- a/js/ui/workspacesView.js
+++ b/js/ui/workspacesView.js
@@ -421,7 +421,7 @@ const WorkspacesDisplay = new Lang.Class({
             // Only switch to the workspace when there's no application
             // windows open. The problem is that it's too easy to miss
             // an app window and get the wrong one focused.
-            if (action.get_button() == 1 &&
+            if ((action.get_button() == 1 || action.get_button() == 0) &&
                 this._getPrimaryView().getActiveWorkspace().isEmpty())
                 Main.overview.hide();
         }));