# HG changeset patch
# User Björn Ricks <bjoern.ricks@intevation.de>
# Date 1365532831 -7200
# Node ID 13692255bc7111aef9fccb6e059b02dca8abb714
# Parent  8caa74da6a533c079e012f0c3c30d1a4f01080d3
Fix crash when all entries are moved from entry list

Only set focus if position is not None

diff -r 8caa74da6a53 -r 13692255bc71 getan/walker.py
--- a/getan/walker.py	Tue Apr 09 20:01:17 2013 +0200
+++ b/getan/walker.py	Tue Apr 09 20:40:31 2013 +0200
@@ -20,6 +20,9 @@
         self.position = None
 
     def set_focus(self, position):
+        if position is None:
+            return
+
         super(ListWalker, self).set_focus(position)
         if self.widget and self.position != position:
             self.position = position