GtkApplication: avoid a crash

It can apparently happen that we get focus in events
on windows after gtk_application_shutdown() has been
called. Avoid an unnecessary crash in this case.

See
https://bugzilla.redhat.com/show_bug.cgi?id=1176339

diff --git a/gtk/gtkapplication.c b/gtk/gtkapplication.c
index 80658c59c2acd434d5d5cf76b2d30a3b05485f46..91ef3559cf6572391309281e80bbb1734bdc15a3 100644 (file)
--- a/gtk/gtkapplication.c
+++ b/gtk/gtkapplication.c
@@ -506,7 +506,9 @@ gtk_application_focus_in_event_cb (GtkWindow      *window,
       priv->windows = g_list_concat (link, priv->windows);
     }
 
-  gtk_application_impl_active_window_changed (application->priv->impl, window);
+  if (application->priv->impl)
+    gtk_application_impl_active_window_changed (application->priv->impl, window);
+
   g_object_notify (G_OBJECT (application), "active-window");
 
   return FALSE;