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w3c / html-aria

ARIA in HTML
https://w3c.github.io/html-aria/
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Clarification for input with "invalid" list attribute #194

Closed eps1lon closed 4 years ago

eps1lon commented 4 years ago

As far as I can tell the spec does not constrain what kind of values the list attribute of a <input type="text" /> should have in order to be recognized as a combobox.

However, it seems like that some implementations do apply constrains. The chrome accessibility view as well as nvda 2019.2 (chrome 78 and edge 18) do not announce a <input type="text" list="non-existing-id" /> as a combobox.

Does the "with a [...] attribute" imply that the attribute in question has to be valid? If so should this be added to each row or is a single note before the table sufficient?

scottaohara commented 4 years ago

@eps1lon, It's invalid HTML to have a list attribute without a value, or with an invalid value (e.g. id that doesn't exist in the document).

I suppose we could add a "with a valid list attribute" to the row that indicates when the form controls would be considered a role=combobox. However, I am not convinced that this spec even needs to mention that, since it isn't the purpose of this specification to indicate what you're asking about, but rather to indicate valid use of ARIA with HTML elements.

eps1lon commented 4 years ago

@scottaohara Makes sense to imply valid html. Thank your for the clarification!