From: James Teh <jamie@jantrid.net>
Date: Wed, 5 Sep 2012 08:35:52 +0000 (+1000)
Subject: Fix possible exception.
X-Git-Tag: jpdev130418~624
X-Git-Url: http://git.osdn.net/view?a=commitdiff_plain;h=33dc1902fbe540664a28e92a5e68a71a7e7285bd;p=nvdajp%2Fnvdajp.git

Fix possible exception.
---

diff --git a/source/NVDAObjects/IAccessible/mozilla.py b/source/NVDAObjects/IAccessible/mozilla.py
index 14a4287e7..974efa769 100755
--- a/source/NVDAObjects/IAccessible/mozilla.py
+++ b/source/NVDAObjects/IAccessible/mozilla.py
@@ -227,7 +227,7 @@ def findExtraOverlayClasses(obj, clsList):
 		# Check if the tree view is a table.
 		parent = obj.parent
 		# Tree view items may be nested, so skip any tree view item ancestors.
-		while parent and parent.IAccessibleRole == oleacc.ROLE_SYSTEM_OUTLINEITEM:
+		while parent and isinstance(parent, Mozilla) and parent.IAccessibleRole == oleacc.ROLE_SYSTEM_OUTLINEITEM:
 			newParent = parent.parent
 			parent.parent = newParent
 			parent = newParent