window: Be more careful when propagating key events

We are keeping references on the widget we are handling as we
are iterating up, but that doesn't protect us against the entire
tree being axed from inside gtk_widget_handle_event.
https://bugzilla.gnome.org/show_bug.cgi?id=727644

diff --git a/gtk/gtkwindow.c b/gtk/gtkwindow.c
index d7911869bfa738a6af1c7553ee2b5cbe637cdeb8..b6f6997f34b72206fb58d09ce1cc4bc0b68485b2 100644 (file)
--- a/gtk/gtkwindow.c
+++ b/gtk/gtkwindow.c
@@ -7613,7 +7613,11 @@ gtk_window_propagate_key_event (GtkWindow        *window,
       GtkWidget *parent;
       
       if (gtk_widget_is_sensitive (focus))
-        handled = gtk_widget_event (focus, (GdkEvent*) event);
+        {
+          handled = gtk_widget_event (focus, (GdkEvent*) event);
+          if (handled)
+            break;
+        }
 
       parent = gtk_widget_get_parent (focus);
       if (parent)