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[Bug 10964] Canvas needs to support a backing store in the DOM subtree capable of supporting screen reading

From: <bugzilla@jessica.w3.org>
Date: Fri, 08 Oct 2010 15:54:23 +0000
To: public-html-a11y@w3.org
Message-Id: <E1P4FH5-0000oL-3L@jessica.w3.org>
http://www.w3.org/Bugs/Public/show_bug.cgi?id=10964

--- Comment #5 from Tab Atkins Jr. <jackalmage@gmail.com> 2010-10-08 15:54:22 UTC ---
(In reply to comment #4)
> The backing store is not the traditional backing store for what you would see
> in say the X Windows System to handle offscreen bitmaps. It is a DOM based
> backing store for what you see in the GUI. Every GUI RTE has one: Office, Open
> Office, Chrome, FF, IE, etc. 
> 
> What is needed is a 1:1 mapping of the caret and selection information stored
> in the DOM to the GUI rendering. To do that we need to be able to track the
> caret and selection in the contenteditable areas. 
> 
> We are taking time to work this out.

Ah, I see.  The term "backing store" already has a completely different meaning
in reference to <canvas>, so I was pretty confused.

The latter two bugs in your bug (please file these as separate bugs instead),
then, are actually completely about @contenteditable, and not at all about
<canvas>, right?

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Received on Friday, 8 October 2010 15:54:24 GMT

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