The HTML spec[1] requires that UAs expose the platform equivalent of the ARIA aria-checked=mixed when the indeterminate IDL attribute is true. "input element with a type attribute in the Checkbox state = aria-checked state set to "mixed" if the element's indeterminate IDL attribute is true, or "true" if the element's checkedness is true, or "false" otherwise" [1]http://www.w3.org/html/wg/drafts/html/master/dom.html#sec-strong-native-semantics The platform equivalent for Mac is AXValue: 2 http://www.w3.org/TR/wai-aria-implementation/#mapping_state-property_table test file http://stevefaulkner.github.io/html-mapping-tests/browser-tests/checkbox-states.html
<rdar://problem/17521301>
Created attachment 234179 [details] patch
Comment on attachment 234179 [details] patch r=me
(In reply to comment #2) > Created an attachment (id=234179) [details] > patch thanks Chris!
Comment on attachment 234179 [details] patch Clearing flags on attachment: 234179 Committed r170661: <http://trac.webkit.org/changeset/170661>
All reviewed patches have been landed. Closing bug.