static VEC(long) *get_list_ancestors(long node)
{
VEC(long) *la;
if (!visited[node]) {
la = get_ancestors(&gi, node);
ancestors[node] = la;
visited[node] = true;
} else {
la = ancestors[node];
}
return la;
}
static void
open_submenu (GtkWidget *button,
gpointer data)
{
GtkMenuTrackerItem *item = data;
GtkWidget *stack;
GtkWidget *child;
GtkWidget *focus;
if (gtk_menu_tracker_item_get_should_request_show (item))
gtk_menu_tracker_item_request_submenu_shown (item, TRUE);
focus = GTK_WIDGET (g_object_get_data (G_OBJECT (button), "focus"));
get_ancestors (focus, GTK_TYPE_STACK, &stack, &child);
gtk_stack_set_visible_child (GTK_STACK (stack), child);
gtk_widget_grab_focus (focus);
}