[gtk+] wayland: Make the resize and move functions use gdk_device_ungrab

[Rob Bradford <rbradford src gnome org>]

commit eedd1ec92f6c035c00f4deaef748173f0ed36f06
Author: Rob Bradford <rob linux intel com>
Date:   Mon Jan 9 16:00:14 2012 +0000

    wayland: Make the resize and move functions use gdk_device_ungrab
    
    Now that grab and ungrab vfuncs are implemented on GdkDevice then we can use
    gdk_device_ungrab to break the implicit grab created by the button press that
    triggered the resize and move.

 gdk/wayland/gdkwindow-wayland.c |   38 +++++++++++++-------------------------
 1 files changed, 13 insertions(+), 25 deletions(-)
---
diff --git a/gdk/wayland/gdkwindow-wayland.c b/gdk/wayland/gdkwindow-wayland.c
index dec6338..5da8b28 100644
--- a/gdk/wayland/gdkwindow-wayland.c
+++ b/gdk/wayland/gdkwindow-wayland.c
@@ -1147,9 +1147,6 @@ gdk_wayland_window_begin_resize_drag (GdkWindow     *window,
 {
   GdkWindowImplWayland *impl;
   uint32_t grab_type;
-  GdkDeviceGrabInfo *button_implicit_grab;
-  gulong serial;
-  GdkDisplay *display;
 
   if (GDK_WINDOW_DESTROYED (window) ||
       !WINDOW_IS_TOPLEVEL_OR_FOREIGN (window))
@@ -1197,28 +1194,14 @@ gdk_wayland_window_begin_resize_drag (GdkWindow     *window,
 
   impl = GDK_WINDOW_IMPL_WAYLAND (window->impl);
 
-  wl_shell_surface_resize(impl->shell_surface,
-                          _gdk_wayland_device_get_device (device),
-                          timestamp, grab_type);
+  wl_shell_surface_resize (impl->shell_surface,
+                           _gdk_wayland_device_get_device (device),
+                           timestamp, grab_type);
 
-  /* We need to break the implicit grab that we created with the button press.
-   * This is because of the semantics on wl_shell_surface_resize. That will
-   * absorb all the events until the resize is completed by the compositor.
-   * This includes the release event that would ordinarily remove the implicit
-   * grab.
+  /* This is needed since Wayland will absorb all the pointer events after the
+   * above function - FIXME: Is this always safe..?
    */
-  display = gdk_window_get_display (window);
-  serial = _gdk_display_get_next_serial (display);
-  button_implicit_grab =
-    _gdk_display_has_device_grab (display, device, serial);
-
-  if (button_implicit_grab &&
-      button_implicit_grab->implicit)
-    {
-      button_implicit_grab->serial_end = serial;
-      button_implicit_grab->implicit_ungrab = FALSE;
-      _gdk_display_device_grab_update (display, device, device, serial);
-    }
+  gdk_device_ungrab (device, timestamp);
 }
 
 static void
@@ -1238,8 +1221,13 @@ gdk_wayland_window_begin_move_drag (GdkWindow *window,
 
   impl = GDK_WINDOW_IMPL_WAYLAND (window->impl);
 
-  wl_shell_surface_move(impl->shell_surface,
-                        _gdk_wayland_device_get_device (device), timestamp);
+  wl_shell_surface_move (impl->shell_surface,
+                         _gdk_wayland_device_get_device (device), timestamp);
+
+  /* This is needed since Wayland will absorb all the pointer events after the
+   * above function - FIXME: Is this always safe..?
+   */
+  gdk_device_ungrab (device, timestamp);
 }
 
 static void