- From: Richard Schwerdtfeger <schwer@us.ibm.com>
- Date: Wed, 21 Nov 2007 13:16:11 -0600
- To: "Anne van Kesteren" <annevk@opera.com>
- Cc: "HTML WG" <public-html@w3.org>, public-html-request@w3.org
- Message-ID: <OF8C0BE92A.59601204-ON8625739A.0069376B-8625739A.0069DA7E@us.ibm.com>
Hi Anne, That is a start. I am not convinced that is workable today since you could place almost anything on a canvas. and your alternative may depend on the user. I am looking at providing a vehicle to provide this infrastructure now in UWA but that is a long way off. Make sense? Rich Rich Schwerdtfeger Distinguished Engineer, SWG Accessibility Architect/Strategist Chair, IBM Accessibility Architecture Review Board blog: http://www.ibm.com/developerworks/blogs/page/schwer "Anne van Kesteren" <annevk@opera.com To > Richard Sent by: Schwerdtfeger/Austin/IBM@IBMUS public-html-reque cc st@w3.org "HTML WG" <public-html@w3.org> Subject Re: SURVEY: Accept requirement for 11/21/2007 12:04 immediate mode graphics a la canvas PM element? 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/>
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Received on Wednesday, 21 November 2007 19:17:17 UTC