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Re: Implied ARIA Roles

From: Michael[tm] Smith <mike@w3.org>
Date: Mon, 18 Aug 2014 16:13:14 +0900
To: Steve Faulkner <faulkner.steve@gmail.com>
Cc: Craig Francis <craig@craigfrancis.co.uk>, "www-validator@w3.org" <www-validator@w3.org>
Message-ID: <20140818071314.GF13741@jay.w3.org>
Steve Faulkner <faulkner.steve@gmail.com>, 2014-08-03 14:40 +0100:

> Hi Craig I have resolved the related spec bug you filed
> https://www.w3.org/Bugs/Public/show_bug.cgi?id=26418
> 
> Mike - the addition of the implied roles for <th scope=col> and <th
> scope=row> clarify that the presence of aria-sort on either does not need
> to be used in conjunction with any aria roles when used on <th scope=col>
> or <th scope=row>. Can you modify the validator conformance checking to
> reflect this?

I updated that validator sources and the change has been pushed to both the
W3C validator and to html5.validator.nu/validator.nu

It allows aria-sort for <th> regardless of whether it has a scope attribute
or not.

  --Mike

> On 22 July 2014 13:50, Craig Francis <craig@craigfrancis.co.uk> wrote:
> 
> > Hi,
> >
> > When validating a document with an @aria-sort attribute, the validator
> > requires that a @role should also be specified.
> >
> > As I'm adding this on a <th scope="col">, isn't this already implied by
> > the markup?
> >
> > http://www.w3.org/TR/wai-aria/roles#columnheader
> >
> > Base Concept: HTML th[scope="col"]
> >
> > An example HTML table is below, where I realise the <span> isn't
> > necessarily the best approach (trying to avoid an <img> which will add
> > additional HTTP requests)... where I am hoping that in time the @aria-sort
> > attribute will be supported by UA's and will provide a much better
> > interface.
> >
> > I've also brought this issue up on SO:
> >
> >
> > http://stackoverflow.com/questions/24863531/using-aria-sort-in-validated-html5
> >
> > Craig
> >
> >
> >
> >
> > <!DOCTYPE html>
> > <html lang="en-GB">
> > <head>
> >   <meta charset="UTF-8" />
> >   <title>ARIA Sort</title>
> > </head>
> > <body>
> >
> >   <table>
> >     <thead>
> >       <tr>
> >         <th scope="col" aria-sort="none"><a href="#">Name&#xA0;<span
> > title="Sort">&#9650;</span></a></th>
> >         <th scope="col" aria-sort="ascending"><a href="#">Score&#xA0;<span
> > title="Ascending">&#9650;</span></a></th>
> >       </tr>
> >     </thead>
> >     <tbody>
> >       <tr>
> >         <th scope="row">A</th>
> >         <td>1</td>
> >       </tr>
> >     </tbody>
> >   </table>
> >
> >   <table role="grid">
> >     <thead>
> >       <tr role="row">
> >         <th scope="col" role="columnheader" aria-sort="none"><a
> > href="#">Name&#xA0;<span title="Sort">&#9650;</span></a></th>
> >         <th scope="col" role="columnheader" aria-sort="ascending"><a
> > href="#">Score&#xA0;<span title="Ascending">&#9650;</span></a></th>
> >       </tr>
> >     </thead>
> >     <tbody>
> >       <tr role="row">
> >         <th scope="row" role="rowheader">A</th>
> >         <td role="gridcell">1</td>
> >       </tr>
> >     </tbody>
> >   </table>
> >
> > </body>
> >

-- 
Michael[tm] Smith http://people.w3.org/mike

Received on Monday, 18 August 2014 07:13:15 UTC

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