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[Bug 11238] New: Enable canvas to support accessible rich text editing

From: <bugzilla@jessica.w3.org>
Date: Fri, 05 Nov 2010 18:49:06 +0000
To: public-html-bugzilla@w3.org
Message-ID: <bug-11238-2486@http.www.w3.org/Bugs/Public/>
http://www.w3.org/Bugs/Public/show_bug.cgi?id=11238

           Summary: Enable canvas to support accessible rich text editing
           Product: HTML WG
           Version: unspecified
          Platform: PC
        OS/Version: All
            Status: NEW
          Severity: major
          Priority: P2
         Component: HTML5 spec (editor: Ian Hickson)
        AssignedTo: ian@hixie.ch
        ReportedBy: schwer@us.ibm.com
         QAContact: public-html-bugzilla@w3.org
                CC: mike@w3.org, public-html-wg-issue-tracking@w3.org,
                    public-html@w3.org


There is a clear use case for creating a profile whereby an author could only
use <canvas> and JavaScript as part of the profile opening the doors for a
whole plethora of applications that run cross platform through the availability
of a common drawing capability. At the 2010 tech plenary a person from the TV
community about HTML profiles and the person stated that a subset of HTML which
contained <canvas> and HTML would "hit the sweet spot."

A number of issues still remain that are not addressed to address this issue.
They are:

- Provide Access to the blink rate of the OS.
- Synchronizing the caret position in a content editable <canvas> subtree to
the screen position rendered on the canvas and convey that information to a
magnifier.
- Convey the persons current selection position when higlighting text to a
screen reader and synchronize that with what is in the contenteditable area in
the subtree for a screen reader.
- Convey the location of grammatical and spelling errors in a contenteditable
canvas subtree to an author so that the author may synchronize them with what
is rendered on the visual canvas.
- Assess what HTML elements in the canvas subtree are allowed in the subtree.
For example, should an IFrame be allowed?

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Received on Friday, 5 November 2010 18:49:11 GMT

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