commit 8edca17c044a8f3b83811ab9d3db227a509fff41
author ekuefler@google.com <ekuefler@google.com@8db76d5a-ed1c-0410-87a9-c151d255dfc7> Fri Dec 21 01:47:44 2012 +0000
committer ekuefler@google.com <ekuefler@google.com@8db76d5a-ed1c-0410-87a9-c151d255dfc7> Fri Dec 21 01:47:44 2012 +0000
tree cf2bfa9f718b1312673ca429d8a0539395823e5e
parent 38fa7b8ba880cca2e06e7485402980a76cd38304

Fixing a null reference exception in Mozilla when calling getBodyOffsetLeft/Top.

The problem occurs when running getBodyOffsetLeft/Top in an iframe that is not currently visible, such as via display:none. In this case, $wnd.getComputedStyle returns null. Fix this by null-checking the return value from getComputedStyle, and returning 0 for the body offset in this case. This should be safe to do since returning 0 is the default behavior defined in DOMImpl, and so is presumably used in other browsers.

This is related to issue 4056 and implements a fix posted by a commenter. Other issues reported in the bug likely still remain, however.

Change-Id: I074f66ba12128b83ee2a98f3af84bafdc46746e2
Review-Link: https://gwt-review.googlesource.com/#/c/1510/

Review by: skybrian@google.com

git-svn-id: https://google-web-toolkit.googlecode.com/svn/trunk@11432 8db76d5a-ed1c-0410-87a9-c151d255dfc7