allow aria-setsize and aria-posinset on tr in treegrid

w3c / html-aria

ARIA in HTML

https://w3c.github.io/html-aria/

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allow aria-setsize and aria-posinset on tr in treegrid #191

Closed carmacleod closed 4 years ago

carmacleod commented 4 years ago

resolves #190

Note: Not quite sure how you want to add the slightly complicated semantics of some row properties only being allowed in context of a treegrid. I put everything into the same "Supported properties" cell (because it's more compact), but maybe you prefer splitting it into 2 rows (one for role="row" if child of treegrid and another for role="row" if not child of treegrid)?

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scottaohara commented 4 years ago

Marked as non substantive for IPR from ash-nazg.