W3C home > Mailing lists > Public > public-html@w3.org > April 2012

Re: ISSUE-201: canvas-fallback - Chairs Solicit Alternate Proposals or Counter-Proposals

From: Edward O'Connor <eoconnor@apple.com>
Date: Thu, 12 Apr 2012 08:03:02 -0700
Cc: public-html@w3.org
Message-id: <66C24406-01B1-45EC-B7C2-CAA7827277AF@apple.com>
To: Steve Faulkner <faulkner.steve@gmail.com>
Hi Steve,

You wrote:

>> I would be appreciative if you could provide in your change proposal,
>> rationale and any details of how this aspect of hixie's hitregion()
>> may be implemented to hook up with accessibility APIs:
>> An unbacked region description consists of the following:
>> Optionally, a label.
>> An ARIA role, which, if the unbacked region description<http://www.whatwg.org/specs/web-apps/current-work/multipage/the-canvas-element.html#hit-region%27s-unbacked-region-description> also
>> has a label, could be the empty string.

> no rationale is provided for this aspect.

Rationale is provided for unbacked region descriptions; see the
paragraph beginning "DOM elements are expensive…".

Oh, now I see that you also asked for "details of how [unbacked region
descriptions] may be implemented to hook up with accessibility APIs."
Describing such details is out of scope for the HTML spec, so I don't
see why people would have to provide such detail in a Change Proposal.
I note that the only other Change Proposal on the table for ISSUE-201
also doesn't provide such detail.

Received on Thursday, 12 April 2012 15:03:13 UTC

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