[gtk+] [broadway] Ungrab if grabbed window is destroyed

[Alexander Larsson <alexl src gnome org>]

commit 66231a29b82e72ba57ca9243bd9231a99cb5ca59
Author: Alexander Larsson <alexl redhat com>
Date:   Fri Apr 15 16:17:27 2011 +0200

    [broadway] Ungrab if grabbed window is destroyed

 gdk/broadway/gdkdevice-broadway.c  |   35 +++++++++++++++++++++++++++++++++++
 gdk/broadway/gdkprivate-broadway.h |    4 +++-
 gdk/broadway/gdkwindow-broadway.c  |    3 +++
 3 files changed, 41 insertions(+), 1 deletions(-)
---
diff --git a/gdk/broadway/gdkdevice-broadway.c b/gdk/broadway/gdkdevice-broadway.c
index 6b514ea..edbc3eb 100644
--- a/gdk/broadway/gdkdevice-broadway.c
+++ b/gdk/broadway/gdkdevice-broadway.c
@@ -234,6 +234,41 @@ gdk_broadway_device_query_state (GdkDevice        *device,
   return TRUE;
 }
 
+void
+_gdk_broadway_window_grab_check_destroy (GdkWindow *window)
+{
+  GdkDisplay *display = gdk_window_get_display (window);
+  GdkBroadwayDisplay *broadway_display;
+  GdkDeviceManager *device_manager;
+  GdkDeviceGrabInfo *grab;
+  GList *devices, *d;
+
+  broadway_display = GDK_BROADWAY_DISPLAY (display);
+
+  device_manager = gdk_display_get_device_manager (display);
+
+  /* Get all devices */
+  devices = gdk_device_manager_list_devices (device_manager, GDK_DEVICE_TYPE_MASTER);
+
+  for (d = devices; d; d = d->next)
+    {
+      /* Make sure there is no lasting grab in this native window */
+      grab = _gdk_display_get_last_device_grab (display, d->data);
+
+      if (grab && grab->native_window == window)
+	{
+	  grab->serial_end = grab->serial_start;
+	  grab->implicit_ungrab = TRUE;
+
+	  broadway_display->pointer_grab_window = NULL;
+	}
+
+    }
+
+  g_list_free (devices);
+}
+
+
 static GdkGrabStatus
 gdk_broadway_device_grab (GdkDevice    *device,
 			  GdkWindow    *window,
diff --git a/gdk/broadway/gdkprivate-broadway.h b/gdk/broadway/gdkprivate-broadway.h
index 4956894..4450e76 100644
--- a/gdk/broadway/gdkprivate-broadway.h
+++ b/gdk/broadway/gdkprivate-broadway.h
@@ -87,7 +87,9 @@ void _gdk_broadway_window_change_property (GdkWindow    *window,
 void _gdk_broadway_window_delete_property (GdkWindow *window,
 					   GdkAtom    property);
 
-void     _gdk_broadway_selection_window_destroyed   (GdkWindow            *window);
+
+void     _gdk_broadway_selection_window_destroyed (GdkWindow *window);
+void     _gdk_broadway_window_grab_check_destroy (GdkWindow *window);
 
 void _gdk_keymap_keys_changed     (GdkDisplay      *display);
 gint _gdk_broadway_get_group_for_state (GdkDisplay      *display,
diff --git a/gdk/broadway/gdkwindow-broadway.c b/gdk/broadway/gdkwindow-broadway.c
index 6b0a713..aa6973d 100644
--- a/gdk/broadway/gdkwindow-broadway.c
+++ b/gdk/broadway/gdkwindow-broadway.c
@@ -273,6 +273,8 @@ gdk_window_impl_broadway_finalize (GObject *object)
 
   wrapper = impl->wrapper;
 
+  _gdk_broadway_window_grab_check_destroy (wrapper);
+
   broadway_display = GDK_BROADWAY_DISPLAY (gdk_window_get_display (impl->wrapper));
 
   if (broadway_display->mouse_in_toplevel == GDK_WINDOW (wrapper))
@@ -472,6 +474,7 @@ _gdk_broadway_window_destroy (GdkWindow *window,
   impl = GDK_WINDOW_IMPL_BROADWAY (window->impl);
 
   _gdk_broadway_selection_window_destroyed (window);
+  _gdk_broadway_window_grab_check_destroy (window);
 
   if (impl->ref_surface)
     {