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Re: Discussion on ISSUE-201: canvas-fallback

From: Richard Schwerdtfeger <schwer@us.ibm.com>
Date: Thu, 26 Jul 2012 10:06:12 -0500
To: "Edward O'Connor" <eoconnor@apple.com>
Cc: "Steven Faulkner (faulkner.steve@gmail.com)" <faulkner.steve@gmail.com>, Frank Olivier <Frank.Olivier@microsoft.com>, "Michael(tm) Smith (mike@w3.org)" <mike@w3.org>, "Maciej Stachowiak (mjs@apple.com)" <mjs@apple.com>, Paul Cotton <Paul.Cotton@microsoft.com>, "Philippe Le Hegaret (plh@w3.org)" <plh@w3.org>, "Sam Ruby (rubys@intertwingly.net)" <rubys@intertwingly.net>, www-archive@w3.org, public-html@w3.org, public-html-a11y@w3.org
Message-ID: <OFE3820FA0.F587F799-ON86257A47.0051823A-86257A47.0052F763@us.ibm.com>

Regarding this issue and supporting this portion of the change proposal:

http://html5.org/tools/web-apps-tracker?from=7028&to=7029

This following text is buried in this change proposal and absolutely needs
to go from addHitRegion processing:

"The arguments object's control member is not + null but is neither an a
element that + represents a hyperlink, a + button element, an input element
whose + type attribute is in one of + the Checkbox or + Radio Button
states, + nor an input element that is a button."

This states that no aria widgets are allowed and many other html5 elements
inlcuding control types such as text and range. The HTML5 specification is
designed to provide keyboard navigation within fallback content. All HTML5
elements support tabindex. This includes elements like <div> and <span>.
This step essentially removes essential features of HTML need to support an
accessible canvas solution. So, this line of text MUST go.

We have already implemented work keyboard enabled ARIA content in canvas
fallback content that drives screen readers and this restriction would
cause magnifiers to not work.

This text needs to be changed to:

"The arguments object's control member references an element with a valid
id."

Rcih




Rich Schwerdtfeger



From:	"Edward O'Connor" <eoconnor@apple.com>
To:	Paul Cotton <Paul.Cotton@microsoft.com>,
Cc:	Frank Olivier <Frank.Olivier@microsoft.com>, Richard
            Schwerdtfeger/Austin/IBM@IBMUS, "Steven Faulkner
            (faulkner.steve@gmail.com)" <faulkner.steve@gmail.com>, "Sam
            Ruby (rubys@intertwingly.net)" <rubys@intertwingly.net>,
            "Maciej Stachowiak (mjs@apple.com)" <mjs@apple.com>, "Philippe
            Le Hegaret (plh@w3.org)" <plh@w3.org>, "Michael(tm) Smith
            (mike@w3.org)" <mike@w3.org>, www-archive@w3.org
Date:	07/20/2012 01:27 PM
Subject:	Re: Discussion on ISSUE-201: canvas-fallback



Hi Paul,

You wrote:

      Richard and Steve are available in the window 11-3pm CDT (16:00-19:00
      UTC) on Tue Jul 24.  Can we arrange a meeting amongst the four of you
      in that window to make progress on the CPs for this issue?

Sure! I'm available in that window.


Ted



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Received on Thursday, 26 July 2012 15:08:22 GMT

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