Bug 113895 – Webkit exposes aria-expanded="undefined" as aria-expanded="false" (AXExpanded = NO)

• Component: Accessibility
• Status: RESOLVED FIXED

[James Craig]

Webkit exposes aria-expanded="undefined" as aria-expanded="false" (AXExpanded = NO)

It should not expose this value unless the string value matches true or false. All other values (including "undefined", "foo", etc.) should not expose the AXExpanded property at all, b/c a NO value means "expandable but not expanded" whereas an undefined value means "not expandable."

Test Cases:

https://dvcs.w3.org/hg/pfwg/raw-file/default/ARIA/1.0/tests/test-files/roles-properties-supported-inherited/roles-properties-supported-inherited-tabpanel-aria-expanded-undefined.html

https://dvcs.w3.org/hg/pfwg/raw-file/default/ARIA/1.0/tests/test-files/roles-properties-supported-inherited/roles-properties-supported-inherited-timer-aria-expanded-undefined.html

https://dvcs.w3.org/hg/pfwg/raw-file/default/ARIA/1.0/tests/test-files/roles-properties-supported-inherited/roles-properties-supported-inherited-toolbar-aria-expanded-undefined.html

https://dvcs.w3.org/hg/pfwg/raw-file/default/ARIA/1.0/tests/test-files/roles-properties-supported-inherited/roles-properties-supported-inherited-tooltip-aria-expanded-undefined.html

https://dvcs.w3.org/hg/pfwg/raw-file/default/ARIA/1.0/tests/test-files/roles-properties-supported-inherited/roles-properties-supported-inherited-tree-aria-expanded-undefined.html

https://dvcs.w3.org/hg/pfwg/raw-file/default/ARIA/1.0/tests/test-files/roles-properties-supported-inherited/roles-properties-supported-inherited-treegrid-aria-expanded-undefined.html

[Radar WebKit Bug Importer]

<rdar://problem/13569954>

[James Craig]

*** Bug 115148 has been marked as a duplicate of this bug. ***

[chris fleizach]

Created attachment 209278 [details]
patch

[Darin Adler]

Comment on attachment 209278 [details]
patch

View in context: https://bugs.webkit.org/attachment.cgi?id=209278&action=review

> Source/WebCore/accessibility/AccessibilityObject.cpp:1634
> +    const AtomicString& expanded = getAttribute(aria_expandedAttr);

Should be fastGetAttribute.

[chris fleizach]

Comment on attachment 209278 [details]
patch

View in context: https://bugs.webkit.org/attachment.cgi?id=209278&action=review

>> Source/WebCore/accessibility/AccessibilityObject.cpp:1634
>> +    const AtomicString& expanded = getAttribute(aria_expandedAttr);
> 
> Should be fastGetAttribute.

this is using the AXObject's getAttr method, which looks like it does call fastGetAttribute so we should be ok. thanks

[WebKit Commit Bot]

Comment on attachment 209278 [details]
patch

Clearing flags on attachment: 209278

Committed r154496: <http://trac.webkit.org/changeset/154496>

[WebKit Commit Bot]

All reviewed patches have been landed.  Closing bug.