From: Christian Persch <chpe@gnome.org>
Date: Tue, 23 Mar 2010 13:45:07 +0000 (+0100)
Subject: gtknotebook: Fix critical warnings on scroll events
X-Git-Url: http://pileus.org/git/?a=commitdiff_plain;h=1af1362a369bb79deaeec8d5bf580c97df6c0c87;p=~andy%2Fgtk

gtknotebook: Fix critical warnings on scroll events

Fixes https://bugzilla.gnome.org/show_bug.cgi?id=604391
---

diff --git a/gtk/gtknotebook.c b/gtk/gtknotebook.c
index d2a987623..65b7ee0c9 100644
--- a/gtk/gtknotebook.c
+++ b/gtk/gtknotebook.c
@@ -2550,7 +2550,8 @@ gtk_notebook_scroll (GtkWidget      *widget,
   for (i = 0; i < 2; i++)
     {
       if (event_widget == priv->action_widget[i] ||
-          gtk_widget_is_ancestor (event_widget, priv->action_widget[i]))
+          (priv->action_widget[i] &&
+           gtk_widget_is_ancestor (event_widget, priv->action_widget[i])))
         return FALSE;
     }