W3C home > Mailing lists > Public > public-html-a11y@w3.org > March 2012

(unknown charset) Re: aria-describedat

From: (unknown charset) Leif Halvard Silli <xn--mlform-iua@xn--mlform-iua.no>
Date: Thu, 22 Mar 2012 13:50:06 +0100
To: (unknown charset) Laura Carlson <laura.lee.carlson@gmail.com>
Cc: (unknown charset) Richard Schwerdtfeger <schwer@us.ibm.com>, W3C WAI-XTECH <wai-xtech@w3.org>, w3c-wai-pf@w3.org, public-html-a11y@w3.org, George Kerscher <kerscher@montana.com>, david.bolter@gmail.com, jbrewer@w3.org, faulkner.steve@gmail.com, mike@w3.org
Message-ID: <20120322135006568660.4111f0a6@xn--mlform-iua.no>
Laura Carlson, Thu, 22 Mar 2012 06:30:10 -0500:
> Hi Rich,
> 
> Do you have use cases for making aria-describedat a global attribute?
> If so can you please articulate them here?

Hi Laura. For HTML elements, then it is the HTMLwg which defines which 
ARIA attributes are permitted globally or non-globally:

http://www.w3.org/TR/html5/content-models#wai-aria

Did you mean to ask for justification for why it should be permitted on 
other elements than those of role='img'?

Without HTML5's restrictions, then all ARIA attributes are, in 
princple, 'global', since ARIA is intended for use in any host language 
- html, xhtml, svg, mathml etc. But the HTMLwg has, for instance, not 
declared @aria-label as invalid on <img>, despite the fact that <img> 
already has @alt.
-- 
Leif H Silli
Received on Thursday, 22 March 2012 12:50:43 UTC

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