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[Bug 10919] Allow role="presentation" to override the default role of any element

From: <bugzilla@jessica.w3.org>
Date: Tue, 05 Oct 2010 06:18:29 +0000
To: public-html-a11y@w3.org
Message-Id: <E1P30r7-0005tm-Df@jessica.w3.org>
http://www.w3.org/Bugs/Public/show_bug.cgi?id=10919

Benjamin Hawkes-Lewis <bhawkeslewis@googlemail.com> changed:

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--- Comment #6 from Benjamin Hawkes-Lewis <bhawkeslewis@googlemail.com> 2010-10-05 06:18:28 UTC ---
(In reply to comment #5)
> Where does ARIA say this should happen?

Assuming by "this", you mean "Elements with role='presentation' are omitted
from the accessibility tree and their children are presented as if direct
children of the next element up":

"For any element with a role of presentation and which is not focusable, the
user agent MUST NOT expose the implicit native semantics of the element (the
role and its states and properties) to accessibility APIs. However, the user
agent MUST expose content and descendant elements that do not have an explicit
or inherited role of presentation. Thus, the presentation role causes a given
element to be treated as having no role or to be removed from the accessibility
tree, but does not cause the content contained within the element to be removed
from the accessible tree."

http://www.w3.org/TR/2010/WD-wai-aria-20100916/roles#presentation

> Isn't aria-owns the official way to do this?

"aria-owns" specifies parent-child relationships not reflected by the DOM. It
does not remove any elements from the accessibility tree. 

http://www.w3.org/TR/2010/WD-wai-aria-20100916/states_and_properties#aria-owns

Question for the OP, the bug description asks to allow role="presentation" on
any element, but the description gives a use case for applying it to container
elements. Is there a use case for allowing it on any elements that cannot
contain other elements and where role="presentation" is currently
non-conforming?

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Received on Tuesday, 5 October 2010 06:18:31 GMT

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