From e0d360233141e4d4fb22d5d332e5372560daff20 Mon Sep 17 00:00:00 2001
From: Benjamin Otte <otte@redhat.com>
Date: Mon, 13 Nov 2017 03:51:53 +0100
Subject: [PATCH] a11y: Handle a treeview with no columns

Code was spewing criticals to stderr because of nonexisting columns. So
check that there's actually an existing column first.
---
 gtk/a11y/gtktreeviewaccessible.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/gtk/a11y/gtktreeviewaccessible.c b/gtk/a11y/gtktreeviewaccessible.c
index 44d68fe69a..3a184e749d 100644
--- a/gtk/a11y/gtktreeviewaccessible.c
+++ b/gtk/a11y/gtktreeviewaccessible.c
@@ -1890,7 +1890,7 @@ static GtkTreeViewColumn *
 get_effective_focus_column (GtkTreeView       *treeview,
                             GtkTreeViewColumn *column)
 {
-  if (column == NULL)
+  if (column == NULL && get_n_columns (treeview) > 0)
     column = get_visible_column (treeview, 0);
 
   return column;