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Re: Next steps for the ARIA syntax discussion

From: Henry S. Thompson <ht@inf.ed.ac.uk>
Date: Fri, 23 May 2008 11:54:32 +0100
To: Aaron M Leventhal <aleventh@us.ibm.com>
Cc: Henri Sivonen <hsivonen@iki.fi>, "public-html@w3.org" <public-html@w3.org>, public-html-request@w3.org, "public-xhtml2@w3.org" <public-xhtml2@w3.org>, w3c-wai-pf@w3.org, "wai-xtech@w3.org" <wai-xtech@w3.org>, "www-tag@w3.org" <www-tag@w3.org>
Message-ID: <f5b63t5gujb.fsf@hildegard.inf.ed.ac.uk>

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Aaron M Leventhal writes:

>> > HST wrote:
>> >> AML wrote:
>> >> > I'm very concerned that there is not a realistic view about how
>> >> > much this will hurt authors.
>> >> 
>> >> I agree that if things were as bad as you thought they were, that
>> >> would be a problem.  But I hope I've shown above that they are _not_
>> >> as bad as you thought.
>> >
>> > You don't think the fact that I got 2 different DOMs for the same
>> > attribute in my XHTML is a problem? That happens when your
>> > instructions are followed correct[ly]?
>> 
>> Not a problem for most users, no, because as long as they stick to
>> doing set/get/removeAttribute("aria:...") they will never notice that
>> (in Firefox) the DOM sometimes starts out one way and changes to
>> another.
>
> I want to ensure that everyone understands the proposal clearly:
> HT is advocating that the DOM starts out one way and changes to another, 
> for the same property value combination.

Please be careful when you put words in my mouth.  Not advocating,
simply observing that this happens in some (quite limited, actually)
circumstances.  The observed change happens _only_ if you introduce an
aria: attribute into an XML DOM by parsing a document with such an
attribute present, _remove_ the resulting attr node programmatically
using removeAttribute, and then add it back using setAttribute.  This
has got to be a pretty unusual sequence of events: by far the more
common pattern is to use setAttribute only to change the value, and
that does _not_ provoke the change we're talking about.

ht
- -- 
 Henry S. Thompson, HCRC Language Technology Group, University of Edinburgh
                     Half-time member of W3C Team
    2 Buccleuch Place, Edinburgh EH8 9LW, SCOTLAND -- (44) 131 650-4440
            Fax: (44) 131 650-4587, e-mail: ht@inf.ed.ac.uk
                   URL: http://www.ltg.ed.ac.uk/~ht/
[mail really from me _always_ has this .sig -- mail without it is forged spam]
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Received on Friday, 23 May 2008 11:06:02 GMT

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