When using Shift-Tab to move the focus out of page content onto
the tab label, we end up in a situation where both Tab and Shift-Tab
move focus back into the page, which is not really what is expected
when the notebook is part of a dialog.
Instead, arrange things so that using Shift-Tab with focus on a
tab label moves the focus out of the notebook.
http://bugzilla.gnome.org/show_bug.cgi?id=669986
if (priv->show_tabs && priv->cur_page)
{
gtk_widget_grab_focus (GTK_WIDGET (notebook));
-
+ gtk_notebook_set_focus_child (notebook, NULL);
gtk_notebook_switch_focus_tab (notebook,
g_list_find (priv->children,
priv->cur_page));