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RE: Canvas shadow DOM question for interactive HTML5 elements

From: Richard Schwerdtfeger <schwer@us.ibm.com>
Date: Thu, 7 Jan 2010 11:37:43 -0600
To: Frank Olivier <franko@microsoft.com>
Cc: David Bolter <dbolter@mozilla.com>, "jcraig@apple.com" <jcraig@apple.com>, public-canvas-api <public-canvas-api@w3.org>, public-canvas-api-request@w3.org
Message-ID: <OFD4DE476D.096EBB10-ON862576A4.0060D125-862576A4.0060D618@us.ibm.com>

Thank you Frank!

Rich Schwerdtfeger
Distinguished Engineer, SWG Accessibility Architect/Strategist


                                                                           
             Frank Olivier                                                 
             <franko@microsoft                                             
             .com>                                                      To 
             Sent by:                  Richard                             
             public-canvas-api         Schwerdtfeger/Austin/IBM@IBMUS,     
             -request@w3.org           David Bolter <dbolter@mozilla.com>, 
                                       "jcraig@apple.com"                  
                                       <jcraig@apple.com>                  
             01/07/2010 11:16                                           cc 
             AM                        public-canvas-api                   
                                       <public-canvas-api@w3.org>          
                                                                   Subject 
                                       RE: Canvas shadow DOM question for  
                                       interactive HTML5 elements          
                                                                           
                                                                           
                                                                           
                                                                           
                                                                           
                                                                           




Invisible input controls should be able to work without any issue in
Windows/Internet Explorer; I will double-check the details (for controls
and contenteditable areas) with my team ASAP and report back to the group.

Thanks
Frank

From: Richard Schwerdtfeger [mailto:schwer@us.ibm.com]
Sent:: Thursday, January 07, 2010 8:56 AM
To: David Bolter; jcraig@apple.com; Frank Olivier
Cc: public-canvas-api
Subject: Canvas shadow DOM question for interactive HTML5 elements



Hi David, James, Frank,

The canvas working group has reached consensus that we should provide a
shadow DOM for <canvas> where the canvas UI is bond to accessible objects
in the shadow DOM. Two things we need to agree on is being able to use
standard input controls and contenteditable areas in the shadow DOM as will
already be accessible in the browser. Since these interactive components
are not visible and would be in the keyboard navigation sequence we need to
know if this will be a problem for Firefox, Safari, or IE. Also,
contenteditable provides a caret location, without which we would need to
provide an API for the caret location to support magifiers and screen
readers. We need to address these action items in the next 2 weeks.

http://www.w3.org/WAI/PF/HTML/track/actions/4

http://www.w3.org/WAI/PF/HTML/track/actions/5

Rich


Rich Schwerdtfeger
Distinguished Engineer, SWG Accessibility Architect/Strategist






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Received on Thursday, 7 January 2010 17:38:53 UTC

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