[gtk+] wayland: Adapt move_resize vfunc implementation to match semantics

[Rob Bradford <rbradford src gnome org>]

commit dba9c2e5a763fc67457accb4da2681a43658df35
Author: Rob Bradford <rob linux intel com>
Date:   Tue Jan 17 14:59:03 2012 +0000

    wayland: Adapt move_resize vfunc implementation to match semantics
    
    Callers of this function were passing in -1, -1 for the width and height if
    they just wanted the window moving - rather than the size changing. We need to
    respect that behaviour and don't try and set the width/height to those
    dimensions.
    
    Now pop-up windows (ala combo-boxes) work!

 gdk/wayland/gdkwindow-wayland.c |    6 +++++-
 1 files changed, 5 insertions(+), 1 deletions(-)
---
diff --git a/gdk/wayland/gdkwindow-wayland.c b/gdk/wayland/gdkwindow-wayland.c
index 834642e..897c61c 100644
--- a/gdk/wayland/gdkwindow-wayland.c
+++ b/gdk/wayland/gdkwindow-wayland.c
@@ -637,7 +637,11 @@ gdk_window_wayland_move_resize (GdkWindow *window,
   window->x = x;
   window->y = y;
 
-  _gdk_wayland_window_update_size (window, width, height, 0);
+  /* If this function is called with width and height = -1 then that means
+   * just move the window - don't update its size
+   */
+  if (width > 0 && height > 0)
+    _gdk_wayland_window_update_size (window, width, height, 0);
 }
 
 static void