GtkWindow: keep a reference of the widget on focus change.

Focus out could lead to the widget being destroyed (for example,
in editable cell renderers when DnD starts), so keep the widget
alive while iterating through the devices.

diff --git a/gtk/gtkwindow.c b/gtk/gtkwindow.c
index a9fa7185eea78fa1f87d9304f24b02d6702bbe95..ce22ae6c92c03ae09a4fb58adf9cd2a9290cfd28 100644 (file)
--- a/gtk/gtkwindow.c
+++ b/gtk/gtkwindow.c
@@ -5253,6 +5253,8 @@ do_focus_change (GtkWidget *widget,
   GdkDeviceManager *device_manager;
   GList *devices, *d;
 
+  g_object_ref (widget);
+
   device_manager = gdk_display_get_device_manager (gtk_widget_get_display (widget));
   devices = gdk_device_manager_list_devices (device_manager, GDK_DEVICE_TYPE_MASTER);
   devices = g_list_concat (devices, gdk_device_manager_list_devices (device_manager, GDK_DEVICE_TYPE_SLAVE));
@@ -5289,6 +5291,7 @@ do_focus_change (GtkWidget *widget,
     }
 
   g_list_free (devices);
+  g_object_unref (widget);
 }
 
 static gint