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Re: feedback requested on WAI CG Consensus Resolutions on Text alternatives in HTML 5 document

From: Steven Faulkner <faulkner.steve@gmail.com>
Date: Mon, 17 Aug 2009 11:15:58 +0100
Message-ID: <55687cf80908170315x19cedbddw828e08aadc3daa8e@mail.gmail.com>
To: Henri Sivonen <hsivonen@iki.fi>
Cc: Maciej Stachowiak <mjs@apple.com>, Ian Hickson <ian@hixie.ch>, HTMLWG WG <public-html@w3.org>, W3C WAI-XTECH <wai-xtech@w3.org>
hi henri, maciej

>Wouldn't it be simpler to change a handful of browsers to hide <img alt="">
from MSAA than to get zillions of authors to add role=presentation where
they >already have alt=""?
>Would it be appropriate, in light of this, to add a user agent requirement
that an img with empty alt should not be mapped to accessibility APIs at
all? It >seems like that would do the job a lot faster than migrating
content to role="presentation".

I don't think the intent is to get all legacy content using
role="presentation" it is to promote the use of a standard generic mechansim
for elements that should not be exposed via the accessibility API. the use
on <img> being one example.

i think that it would be appropriate to add a user agent requirement that an
img with empty alt should not be mapped to accessibility APIs as this is
what it how it works in AT.

as far as the warning goes i can live with it not occuring.

regards
stevef

i think that it would be useful to
2009/8/17 Henri Sivonen <hsivonen@iki.fi>

> On Aug 17, 2009, at 11:36, Steven Faulkner wrote:
>
> This suggestion is based on the desire to promote the use of
>> role="presentation" as a generic method of indicating an element should not
>> be mapped to an accessibility API, as implemented by a number of browsers
>> [2] . the use of alt="" does not do this (e.g in MSAA role="graphic"), but
>> has been used by a number of AT to hide images from the user by not
>> announcing the images presence.
>>
>
> Wouldn't it be simpler to change a handful of browsers to hide <img alt="">
> from MSAA than to get zillions of authors to add role=presentation where
> they already have alt=""?
>
>
> --
> Henri Sivonen
> hsivonen@iki.fi
> http://hsivonen.iki.fi/
>
>
>


-- 
with regards

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

www.paciellogroup.com | www.wat-c.org
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Received on Monday, 17 August 2009 10:16:41 UTC

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