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Re: Thoughts towards an accessible <canvas>

From: Joshue O Connor <joshue.oconnor@ncbi.ie>
Date: Sun, 22 Mar 2009 10:13:38 +0000
Message-ID: <49C60F52.1020701@ncbi.ie>
To: mjs@apple.com
Cc: Charles McCathieNevile <chaals@opera.com>, "John Foliot - WATS.ca" <foliot@wats.ca>, Wai-Ig <w3c-wai-ig@w3.org>, wai-xtech@w3.org, 'HTMLWG' <public-html@w3.org>, WebAIM Discussion List <webaim-forum@list.webaim.org>, Gawds_Discuss <gawds_discuss@yahoogroups.com>
Maciej Stachowiak wrote:
>
> On Mar 19, 2009, at 8:34 AM, Charles McCathieNevile wrote:
>
>>
>>> I propose that
>>> any instance of <canvas> that lacks at a minimum the 2 proposed
>>> mandatory
>>> values be non-conformant and not render on screen. The inclusion of this
>>> information should not be left to chance - the specification requires
>>> that some fallback content exist - and if it does not exist then the
>>> <canvas> element is incomplete, thus it should simply fail all users...
>>
>> I think that this is a non-starter. As explained in a narrower
>> follow-up, the penalty to browsers who do this means that mainstream
>> browsers simply won't, in all probability.
>
> I agree with Chaals on this. We would likely not be willing to stop
> rendering existing <canvas> content in Safari.

Yes, all the more reason to ensure that the API is suitable /before/ it
leaves the stable so we are not facing a situation where we need to
retrofit the API for accessibility.

Josh

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Received on Sunday, 22 March 2009 10:14:36 GMT

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