HTML-AAM: align <dl> mappings with ARIA 1.3 associationlist role

[jasonkiss]

From @cyns on January 12, 2016 18:42

Consider adding a "term" role to aria? It doesn't seem like the current mapping provides enough info to AT.

Copied from original issue: w3c/aria#148

[jasonkiss]

If role=term (ARIA1.1) is confirmed, this could work nicely:

• <dl>: Seems this is referred to in HTML5.1 as description list instead of definition list. In UIA, this could get localized control type "description list". AX could update its AXSubrole to AXDescriptionList, or at least its AXRoleDescription to "description list". Or we could stick with using "definition list" in both cases.
• <dt>: Could map to role=term (as could <dfn> for that matter)
• <dd>: Is already mapped to role=definition

[jasonkiss]

Current CORE-AAM mappings for role="term" clearly set it up as a dt type list item, but the description in ARIA spec for role="term" is more general, and doesn't specify list semantics. See ARIA issue #455.

[jasonkiss]

dt maps to the term role, and dd to the definition role. Description/definition list semantics and role slated for ARIA 1.2. Renaming and moving to AAM v2.

[scottaohara]

ARIA PR #951 was merged, which results in ARIA 1.2 having new roles to map to dl, dt, and dd:
associationlist = dl
associationlistitemkey = dt
associationlistitemvalue = dd

role=term now will only map to HTML's dfn element.
role=definition will not map to an HTML element, but rather by a type of container element to house the definition for a term.

This means that mapping for dt and dd will no longer map to term and definition, but rather the new ARIA roles and dl will map to its new ARIA role. once they are in CORE AAM.

[scottaohara]

associationlist has been pushed to 1.3

but dt and dd should have their WAI-ARIA mappings removed and re-expose the platform mappings, as they're all a bit different, and should not map to what will be term and definition roles.

[scottaohara]

closing per the newer issue.