[gnome-maps] application: Prefer X11 and Wayland backends over GDK

[Jonas Danielsson <jonasdn src gnome org>]

commit 7e5678d8ad7c5ef9d387ee38103534a0a375f4fd
Author: Jonas Danielsson <jonas threetimestwo org>
Date:   Tue Feb 9 21:29:15 2016 +0100

    application: Prefer X11 and Wayland backends over GDK
    
    This seems to play better with clutter-gtk and makes
    a bug where bits of popovers where left on map dissapear.
    
    https://bugzilla.gnome.org/show_bug.cgi?id=758350

 src/application.js |    2 ++
 1 files changed, 2 insertions(+), 0 deletions(-)
---
diff --git a/src/application.js b/src/application.js
index 8dd7b1e..aad5fd0 100644
--- a/src/application.js
+++ b/src/application.js
@@ -20,6 +20,7 @@
  *         Zeeshan Ali (Khattak) <zeeshanak gnome org>
  */
 
+const Clutter = imports.gi.Clutter;
 const GLib = imports.gi.GLib;
 const GObject = imports.gi.GObject;
 const Gio = imports.gi.Gio;
@@ -209,6 +210,7 @@ const Application = new Lang.Class({
     vfunc_startup: function() {
         this.parent();
 
+        Clutter.set_windowing_backend('x11,wayland,*');
         GtkClutter.init(null);
 
         Utils.loadStyleSheet(Gio.file_new_for_uri('resource:///org/gnome/Maps/application.css'));