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Re: ARIA use in HTML other than for accessibility.

From: Schnabel, Stefan <stefan.schnabel@sap.com>
Date: Sat, 2 May 2015 05:56:32 +0000
To: Janina Sajka <janina@rednote.net>
CC: Steve Faulkner <faulkner.steve@gmail.com>, HTMLWG WG <public-html@w3.org>, HTML Accessibility Task Force <public-html-a11y@w3.org>, "W3C WAI Protocols & Formats" <public-pfwg@w3.org>
Message-ID: <DF9C9C65-7EA6-4ECA-87FB-CBF4168FC507@sap.com>
Annother example would be exposing aria-label string content as part of User agent UI in cases where that does make sense. Longdesc exposing in Firefox already went a similar way.

I think we had already a discussion about that and other use cases for "Visual ARIA" (I don't claim this term). I also bet there are quite a few more of them.

For instance, wouldn't it be fascinating if we can establish a protocol for browsers to expose keyboard usage for custom elements (using a potential aria-keyhelp string proprty) also for non-blind users?

Regards
Stefan

Sent from my iPad

> On 01.05.2015, at 23:54, Janina Sajka <janina@rednote.net> wrote:
> 
> Let me draw your attention to:
> 
> http://www.w3.org/TR/wai-aria/introduction#ua-support
> 
> Which includes the following:
> 
> "The WAI-ARIA specification neither requires or forbids user agents from
> enhancing native presentation and interaction behaviors on the basis of
> WAI-ARIA markup.  Mainstream user agents might expose WAI-ARIA
> navigational landmarks (for example, as a dialog box or through a
> keyboard command) with the intention to facilitate navigation for all
> users. User agents are encouraged to maximize their usefulness to users,
> including users without disabilities."
> 
> The above, taken from the ARIA-1.0 TR continues present in the current
> ARIA-1.1 drafts.
> 
> Janina
> 
> 
> Steven Faulkner writes:
>> Note: have ccd HTML a11y taskforce and PF, but please reply to HTML WG list
>> so a broader audience can read and contribute.
>> 
>> Hi all,
>> 
>> There is some discussion  going on currently about the uses of ARIA for
>> cases other than accessibility.
>> 
>> My understanding in the context of HTML is that ARIA is to be used to allow
>> web developers to assign semantics to HTML content in order to make it
>> understandable to assistive technology users. And that it should only be
>> used when HTML features do not have this information baked in or developers
>> are building custom UI. Hence my formulation of the First [informative]
>> rule of ARIA [1] and the conformance requirements on ARIA in HTML [4]
>> 
>> The ARIA 1.1 spec appears to align with this view:
>> 
>>> These semantics are designed to allow an author to properly convey user
>>> interface behaviors and structural information to assistive technologies in
>>> document-level markup.
>> 
>> So I was somewhat surprised to see a tweet [3] yesterday from Rich
>> Schwerdtfeger:
>> 
>> ARIA is providing more semantics than host languages and it is growing.
>>> Developers and Designers would be foolish to limit its use to a11y.
>> 
>> 
>> I see problems arising from the use of ARIA in HTML for purposes other than
>> UI accessibility including:
>> 
>> * Conflict with native HTML accessibility semantics
>> * Unnecessary cruft build up in the corpus of HTML documents due to its
>> extended use.
>> * Dilution of its relationship to accessibility APIs semantics and increase
>> in complexity of an already complex vocabulary.
>> 
>> I would really think there is a need for this stuff to be more thoroughly
>> discussed, especially in relation to ARIA use in HTML as a host language.
>> 
>> Review at your leasure, comment at will.
>> 
>> [1] http://w3c.github.io/aria-in-html/#first-rule-of-aria-use
>> [2] http://rawgit.com/w3c/aria/master/aria/aria.html#h-abstract
>> [3] https://twitter.com/rschwer/status/593758137989013504
>> [4] http://www.w3.org/TR/html-aria/
>> 
>> 
>> 
>> --
>> 
>> Regards
>> 
>> SteveF
>> HTML 5.1 <http://www.w3.org/html/wg/drafts/html/master/>
> 
> -- 
> 
> Janina Sajka,    Phone:    +1.443.300.2200
>            sip:janina@asterisk.rednote.net
>        Email:    janina@rednote.net
> 
> Linux Foundation Fellow
> Executive Chair, Accessibility Workgroup:    http://a11y.org
> 
> The World Wide Web Consortium (W3C), Web Accessibility Initiative (WAI)
> Chair,    Protocols & Formats    http://www.w3.org/wai/pf
>    Indie UI            http://www.w3.org/WAI/IndieUI/
> 
> 
Received on Saturday, 2 May 2015 05:57:03 UTC

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