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Re: Response to: ChangeProposals/DeprecateLongdesc

From: Silvia Pfeiffer <silviapfeiffer1@gmail.com>
Date: Tue, 23 Aug 2011 09:34:44 +1000
Message-ID: <CAHp8n2kjCAvv0MoroNBz1_x51FFYEJfBNfsnKRzqZKRkA-_kxg@mail.gmail.com>
To: Leif Halvard Silli <xn--mlform-iua@xn--mlform-iua.no>
Cc: John Foliot <jfoliot@stanford.edu>, public-html-a11y@w3.org
Actually, something that just dawned on me: we have to fix
aria-describedby no matter whether it is a valid replacement for
@longdesc. Since browser APIs all deal with @aria-describedby
differently, it's obviously underspecified and for that reason not
quite as useful as it could be. Is that being worked on? Should I
provide input somewhere?

Cheers,
Silvia.

On Tue, Aug 23, 2011 at 9:25 AM, Leif Halvard Silli
<xn--mlform-iua@xn--mlform-iua.no> wrote:
> Silvia Pfeiffer, Tue, 23 Aug 2011 09:06:41 +1000:
> [  snip  ]
>> Also, maybe we should propose a change to the HTML spec:
>> "The hidden attribute is a boolean attribute. When specified on an
>> element, it indicates that the element is not yet, or is no longer,
>> relevant. User agents should not render elements that have the hidden
>> attribute specified."
>>
>> should become
>>
>> "The hidden attribute is a boolean attribute. When specified on an
>> element, it indicates that the element is not yet, or is no longer,
>> *visually* relevant. User agents should not render elements that have
>> the hidden attribute specified."
>
> This does not sound smart.
>
>> Also, the further text would need a change, too - in particular this
>> cannot stay as is:
>> "if something is marked hidden, it is hidden from all presentations,
>> including, for instance, screen readers."
>> Something would need to be added about hiding it from screen readers
>> in their normal page progression, which is indeed necessary, but not
>> hiding it from @aria-describedby.
>
> This sounds smarter. One coudl simply add that ARIA is not bound by
> this rule.
>
> Btw - and from another POV: while @hidden currently hides the element
> (or as the spec says "not yet" sees it as relevant), it doesn't follow
> that, when made "un-hidden", it becomes un-hidden for *all*
> presentations - does it?
>
>> Maybe @aria-describedby would create
>> a temporally restricted unhiding and focus for tabbing, similar to how
>> modal dialogs work.
>
> +1
> --
> Leif H Silli
Received on Monday, 22 August 2011 23:35:40 GMT

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