Bug 231760 – AX: checkboxes don't respect `indeterminate` IDL attribute state

• Status: RESOLVED
• Resolution: FIXED
• Component: Accessibility

[Scott]

There appears to have been a regression in the support for a native HTML checkbox's indeterminate IDL attribute, as recent testing has shown that it is returning the unchecked value (0) rather than the mixed value (2) when specified.

Test case: https://scottaohara.github.io/tests/attr-indeterminate/

Reviewing with the accessibility checker, the native checkboxes are returning a value of 0 when given the indeterminate IDL attribute.  

I found these previous issues which reported on this bug, and were closed as fixed (hence assuming this is a regression). I am linking to them here in hopes that they might be somehow helpful in fixing this new instance of the mixed state not being properly exposed.

https://bugs.webkit.org/show_bug.cgi?id=158876
https://bugs.webkit.org/show_bug.cgi?id=134492

Thanks

[Radar WebKit Bug Importer]

<rdar://problem/84269311>

[Tyler Wilcock]

Created attachment 464184 [details]
Patch

[EWS]

Committed 258314@main (4160624d7f96): <https://commits.webkit.org/258314@main>

All reviewed patches have been landed. Closing bug and clearing flags on attachment 464184 [details].