Can combo boxes be implemented with lists in popups instead of listboxes

[stes-acc]

Can combo boxes be implemented with lists in popups instead of listboxes?

This is done frequently in various HTML-based frameworks but there is no statement on this in ARIA APG or Spec.

[scottaohara]

can you provide examples of what you're referring to - if there are frameworks that are providing this pattern.

what is the use case to do this vs is this potentially just errors that there's no good reason to codify?

[stes-acc]

Combos in modern HTML-based frameworks are populated with all kinds of sophisticated stuff because there are real use cases behind that.

Starting with the fact that #1440 is there for a reason (including examples), devs have simply no option to accomplish this with options in a listbox, they take extended listitems for that that require a list and not a listbox container.

These guys do code now and are no willing to wait until aria-actions is on the display, therefore the question.

[spectranaut]

We an example before scheduling a discussion.

[stes-acc]

This boils down to the question if "list" can be added to the allowed values of aria-haspopup since applying aria-haspopup on combobox role is perfectly OK in ARIA spec.

Currently "list" it is not contained in allowed values, so maybe better create a separate issue for this and closing this one. I'm OK with it.

[stes-acc]

Closed and will be continued as issue for aria-haspopup.