Avoid a critical

gtk_window_get_focus can return NULL, deal with it.

https://bugzilla.gnome.org/show_bug.cgi?id=740812

diff --git a/gtk/gtkpopover.c b/gtk/gtkpopover.c
index 38214c923907ad186717a1a02a4395f955a7e6b8..83a8111ebc25bbde41532b03f202260c0513981d 100644 (file)
--- a/gtk/gtkpopover.c
+++ b/gtk/gtkpopover.c
@@ -311,7 +311,7 @@ window_focus_in (GtkWidget  *widget,
 
       focus = gtk_window_get_focus (GTK_WINDOW (widget));
 
-      if (!gtk_widget_is_ancestor (focus, GTK_WIDGET (popover)))
+      if (focus == NULL || !gtk_widget_is_ancestor (focus, GTK_WIDGET (popover)))
         gtk_widget_grab_focus (GTK_WIDGET (popover));
 
       if (priv->grab_notify_blocked)