114535 – When img@alt is undefined, WebKit should use @title as accessibility label if available

RESOLVED FIXED 114535

When img@alt is undefined, WebKit should use @title as accessibility label if available

https://bugs.webkit.org/show_bug.cgi?id=114535

Summary When img@alt is undefined, WebKit should use @title as accessibility label if...

James Craig

Reported 2013-04-12 14:44:08 PDT

ARIA computation algorithm says to always fallback to the host language "tooltip" attribute (WebKit does not use @title as the label on IMG), but I think an explicitly empty alt attribute should override that on img. I've added a test case.

Attachments
test case demonstrating bug (539 bytes, text/html) 2013-04-12 14:47 PDT, James Craig	no flags	Details
patch (3.82 KB, patch) 2013-04-15 10:58 PDT, chris fleizach	no flags	Details Formatted Diff Diff
View All Add attachment proposed patch, testcase, etc.

James Craig

Comment 1 2013-04-12 14:44:51 PDT

<rdar://problem/13337253>

James Craig

Comment 2 2013-04-12 14:46:34 PDT

2. D. "The last resort is to use text from a tooltip attribute (such as the title attribute in HTML). This is used only if nothing else, including subtree content, has provided results." http://www.w3.org/WAI/PF/aria/complete#textalternativecomputation

James Craig

Comment 3 2013-04-12 14:47:37 PDT

Created attachment 197889 [details] test case demonstrating bug

Alexey Proskuryakov

Comment 4 2013-04-13 19:48:08 PDT