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Canvas accessibility: A new mode for all focusable elements?

From: Frank Olivier <Frank.Olivier@microsoft.com>
Date: Mon, 7 Feb 2011 23:00:20 +0000
To: "HTML WG (public-html@w3.org)" <public-html@w3.org>
Message-ID: <91175A762AB48840AF1473514B26B47519EFAAB1@TK5EX14MBXC102.redmond.corp.microsoft.com>
Wrt the following spec text:

"In non-visual media, and in visual media if scripting is disabled for the canvas element or if support for canvas elements has been disabled, the canvas element represents its fallback content instead. 
When a canvas element represents embedded content, the user can still focus descendants of the canvas element (in the fallback content). This allows authors to make an interactive canvas keyboard-focusable: authors should have a one-to-one mapping of interactive regions to focusable elements in the fallback content."

This means that any focusable element in the DOM now has a new 'non-visual' mode. 

Does the html wg have any concern about allowing *any* focusable element to have a non-visual mode? 

Should the list of allowable elements under a canvas element be enumerated and specced?

>From an implementation perspective, we have a big new area with little in the way of specced behavior.

Frank Olivier
Received on Monday, 7 February 2011 23:00:58 UTC

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