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Re: SURVEY: Accept requirement for immediate mode graphics a la canvas element?

From: Anne van Kesteren <annevk@opera.com>
Date: Wed, 21 Nov 2007 19:04:28 +0100
To: "Richard Schwerdtfeger" <schwer@us.ibm.com>
Cc: "HTML WG" <public-html@w3.org>
Message-ID: <op.t15ltq0p64w2qv@annevk-t60.oslo.opera.com>

Hi Rich,

On Wed, 21 Nov 2007 18:31:53 +0100, Richard Schwerdtfeger  
<schwer@us.ibm.com> wrote:
> I object to having <canvas> in HTML 5. There is no vehicle to apply
> accessibility semantics to the markup - unlike SVG.

 From http://www.w3.org/html/wg/html5/#canvas

"When authors use the canvas element, they should also provide content  
that, when presented to the user, conveys essentially the same function or  
purpose as the bitmap canvas. This content may be placed as content of the  
canvas element. The contents of the canvas element, if any, are the  
element's fallback content."

And also

"In non-visual media, and in visual media with scripting disabled, the  
canvas element's fallback content must be used instead."

So if you could clarify your comment in light of that (and the rest the  
section of <canvas> states on this subject, I haven't quoted everything),  
that would be much appreciated so we can alleviate the concern.

Kind regards,


-- 
Anne van Kesteren
<http://annevankesteren.nl/>
<http://www.opera.com/>
Received on Wednesday, 21 November 2007 18:14:50 GMT

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