[gtk+] wayland: set the wm_class on toplevel windows

[Giovanni Campagna <gcampagna src gnome org>]

commit 3c5d9d6889c60066456c29a840a135e3da9a55e8
Author: Giovanni Campagna <gcampagn redhat com>
Date:   Tue Sep 3 11:38:35 2013 +0200

    wayland: set the wm_class on toplevel windows
    
    Before mapping the window, set the title and class, to allow
    application tracking by gnome-shell.
    
    https://bugzilla.gnome.org/show_bug.cgi?id=707129

 gdk/wayland/gdkwindow-wayland.c |   11 ++++++++---
 1 files changed, 8 insertions(+), 3 deletions(-)
---
diff --git a/gdk/wayland/gdkwindow-wayland.c b/gdk/wayland/gdkwindow-wayland.c
index 633ca83..27632f3 100644
--- a/gdk/wayland/gdkwindow-wayland.c
+++ b/gdk/wayland/gdkwindow-wayland.c
@@ -1066,6 +1066,14 @@ gdk_wayland_window_show (GdkWindow *window, gboolean already_mapped)
                                     &shell_surface_listener, window);
     }
 
+  if (impl->shell_surface)
+    {
+      if (impl->title)
+       wl_shell_surface_set_title (impl->shell_surface, impl->title);
+
+      wl_shell_surface_set_class (impl->shell_surface, gdk_get_program_class ());
+    }
+
   gdk_window_set_type_hint (window, impl->hint);
 
   _gdk_make_event (window, GDK_MAP, NULL, FALSE);
@@ -1074,9 +1082,6 @@ gdk_wayland_window_show (GdkWindow *window, gboolean already_mapped)
 
   if (impl->cairo_surface)
     gdk_wayland_window_attach_image (window);
-
-  if (impl->shell_surface && impl->title)
-    wl_shell_surface_set_title (impl->shell_surface, impl->title);
 }
 
 static void