Use element reflection for IDREF/IDREF list

[alice]

This depends on a pull request on WHATWG, which depends on implementations, which depends on something to implement, so we do have a bit of a dependency cycle here.

In any case, we are planning to send out an intent to implement this on Chrome; it should be fine to do that based on a PR, but if you have any feedback it would be much appreciated!

[BenevolentHighPriestess]

Thank you

[jnurthen]

Thanks @alice
We will discuss in our next chair meeting how to proceed.

[alice]

@cookiecrook FYI

[foolip]

The changes here have reached web-platform-tests in web-platform-tests/wpt#16463, and I noticed in https://wpt.fyi/results/wai-aria/idlharness.window.html?diff&filter=ADC&run_id=6543921261838336&run_id=4861101535657984 (via check) that Safari was previously passing all the tests. This is the case for Safari stable (12.1) as well:
https://wpt.fyi/results/wai-aria/idlharness.window.html?run_id=6277854882955264&run_id=5140432048619520

Was this considered when renaming? Is there a WebKit bug to follow this rename? The risk otherwise is of course that both names will rename and that web developers will have to deal with both for a long time.

[alice]

Was this considered when renaming?

The fact that Safari had shipped the ARIA properties?

Note that it's less of a rename and more of a removal/add, since the type has also changed.

Is there a WebKit bug to follow this rename?

@cookiecrook to comment.

The risk otherwise is of course that both names will rename and that web developers will have to deal with both for a long time.

I doubt the old names saw a lot of use in production; is there a way to check?

[carmacleod]

Is Safari the only one implementing so far?
@LJWatson was asking in #957

[cookiecrook]

As I mentioned in #834, the string reflection variants should be removed from ARIA 1.2. We'll likely unship these from the WebKit implementation before the element reflection bits go in.

[foolip]

I doubt the old names saw a lot of use in production; is there a way to check?

Searching HTTP Archive using BigQuery is the method I'd use, HTTP Archive for web compat decision making has some instructions. However, depending on the expected usage this might be overkill, I'll leave it to the WebKit folks trying to remove this :) (If someone does want to run a query I can help though, just let me know.)

[cookiecrook]

Moving this back from "Done" to "In progress" because we commented these lines for the 1.2 release.

[cookiecrook]

I think this is all superseded now. Should be okay to close.