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Re: use of aria-hidden to provide a text description not visible on the page.

From: Steven Faulkner <faulkner.steve@gmail.com>
Date: Fri, 10 Sep 2010 15:47:09 +0100
Message-ID: <AANLkTi=EGkmXBYiyVat=CV=qO5YtafDR=it0-jKEwKrV@mail.gmail.com>
To: W3C WAI-XTECH <wai-xtech@w3.org>, HTML Accessibility Task Force <public-html-a11y@w3.org>
Cc: Richard Schwerdtfeger <schwer@us.ibm.com>
Note: also exposed as an accessible decription in Safari on Mac and chrome
on windows.

regards
Stevef

On 10 September 2010 15:36, Steven Faulkner <faulkner.steve@gmail.com>wrote:

> Hi all,
> the code below references a hidden div element with a description. The
> description text string is provided in the accessible description property
> in MSAA and Ia2 in firefox, should it be given that the div is hidden?
>
>  <img alt="bottle" aria-describedby="x">
> <div aria-hidden="true" style="display:none">
> blue bottle with a rusty lid
> </div>
>
>
>  the following from the WAI-ARIA spec [
> http://www.w3.org/TR/wai-aria/complete#namecalculation] suggests it is OK.
>
> "The text alternative for a given node is computed as follows:
>
>    1. Skip hidden <http://www.w3.org/TR/wai-aria/complete#def_hidden>elements unless the author specifies to use them via an
>    aria-labelledby or aria-describedby being used in the current
>    computation. By default, users of assistive technologies<http://www.w3.org/TR/wai-aria/complete#def_at>won't receive the hidden information, but an author will be able to
>    explicitly override that and include the hidden information. "
>
> If so it is a useful method of providing descriptive information for AT
> users.
>
> --
> with regards
>
> Steve Faulkner
> Technical Director - TPG Europe
> Director - Web Accessibility Tools Consortium
>
> www.paciellogroup.com | www.wat-c.org
> Web Accessibility Toolbar -
> http://www.paciellogroup.com/resources/wat-ie-about.html
>



-- 
with regards

Steve Faulkner
Technical Director - TPG Europe
Director - Web Accessibility Tools Consortium

www.paciellogroup.com | www.wat-c.org
Web Accessibility Toolbar -
http://www.paciellogroup.com/resources/wat-ie-about.html
Received on Friday, 10 September 2010 14:48:03 UTC

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