gtkwindow: fix a critical warning

Do not map the title box if it's not visible.

diff --git a/gtk/gtkwindow.c b/gtk/gtkwindow.c
index 1fe96a8621ed82e20580eba4aaf1448645108501..e9f547fb3ec6638ad86ce517e17058f1589c3bfa 100644 (file)
--- a/gtk/gtkwindow.c
+++ b/gtk/gtkwindow.c
@@ -5471,7 +5471,7 @@ gtk_window_map (GtkWidget *widget)
   if (child != NULL && gtk_widget_get_visible (child))
     gtk_widget_map (child);
 
-  if (priv->title_box != NULL)
+  if (priv->title_box != NULL && gtk_widget_get_visible (priv->title_box))
     gtk_widget_map (priv->title_box);
 
   gdk_window = gtk_widget_get_window (widget);