wayland: fix xdg_surface test in move/resize drag

begin_resize_drag() and begin_move_drag() check for xdg_surface being
not null, but those apply on xdg_toplevel so they should check for
xdg_toplevel being non-null instead.

https://bugzilla.gnome.org/show_bug.cgi?id=781945

diff --git a/gdk/wayland/gdkwindow-wayland.c b/gdk/wayland/gdkwindow-wayland.c
index 71e21820fa947b4cf21fc2cb118858db7ee99cc8..d83466612b9163d54d8a7a7e99bce8fbdc397141 100644 (file)
--- a/gdk/wayland/gdkwindow-wayland.c
+++ b/gdk/wayland/gdkwindow-wayland.c
@@ -3457,7 +3457,7 @@ gdk_wayland_window_begin_resize_drag (GdkWindow     *window,
 
   impl = GDK_WINDOW_IMPL_WAYLAND (window->impl);
 
-  if (!impl->display_server.xdg_surface)
+  if (!impl->display_server.xdg_toplevel)
     return;
 
   serial = _gdk_wayland_seat_get_last_implicit_grab_serial (gdk_device_get_seat (device),
@@ -3494,7 +3494,7 @@ gdk_wayland_window_begin_move_drag (GdkWindow *window,
 
   impl = GDK_WINDOW_IMPL_WAYLAND (window->impl);
 
-  if (!impl->display_server.xdg_surface)
+  if (!impl->display_server.xdg_toplevel)
     return;
 
   serial = _gdk_wayland_seat_get_last_implicit_grab_serial (gdk_device_get_seat (device),