There is some precedence for this mechanism already implemented in WebKit,
e.g., aria-details and aria-errormessage.
Best regards,
—Andres.
> On Apr 21, 2021, at 11:01 PM, Alice Boxhall via webkit-dev
> <webkit-dev@lists.webkit.org> wrote:
>
> Hi WebKit engineers,
>
> I've been working with Ryosuke Niwa and James Craig (and others) on
> developing a design for a mechanism to allow setting and getting an Element
> or a FrozenArray<Element> as the value for an IDL attribute which reflects a
> content attribute which takes an IDREF or IDREF list.
>
> As a short example, that would look like:
>
> <label>
> Phone number:
> <input type="tel">
> </label>
> <span id="description">Please include international country code, e.g.
> +61</span>
> const input = document.querySelector('input');
> const description = document.getElementById('description');
>
> input.ariaDescribedByElements = [description];
> You can read the more detailed explainer
> <https://github.com/WICG/aom/blob/gh-pages/element_reference_properties.md>
> for more in-depth examples and edge cases - please note that this explainer
> is written for an audience of web content authors, and as such some of the
> terminology doesn't precisely line up with spec terminology.
>
> The current spec draft is here: https://github.com/whatwg/html/pull/3917
> <https://github.com/whatwg/html/pull/3917>
>
> At this point, we have an implementation
> <https://www.chromestatus.com/feature/6244885579431936> ready for developer
> trial which matches the API described in the spec draft and explainer.
>
> We're wondering what interest WebKit as a whole has in this API.
>
> In particular, there is an open question
> <https://github.com/whatwg/html/pull/3917#discussion_r603794547> as to
> whether FrozenArray<Element> is a good choice, given validation constraints
> (in part to avoid leaking Shadow DOM internals) mean that it violates
> <https://github.com/WICG/aom/blob/gh-pages/element_reference_properties.md#note-on-element-array-property-equality>
> the self-equality part of the "Attributes should behave like data
> properties"
> <https://w3ctag.github.io/design-principles/#attributes-like-data> TAG design
> principle.
>
> Dominic Mazzoni (cc'd) is also participating in this design process, and will
> be able to answer any clarifying questions that might arise.
>
> Thanks!
>
> Alice
>
>
> _______________________________________________
> webkit-dev mailing list
> webkit-dev@lists.webkit.org
> https://lists.webkit.org/mailman/listinfo/webkit-dev
_______________________________________________
webkit-dev mailing list
webkit-dev@lists.webkit.org
https://lists.webkit.org/mailman/listinfo/webkit-dev
