Re: Tree sample code

Why do you do the aria-labelledby pointing into the span?
Otherwise the accessible name for the top level items encompasses all the 
subitems too, right?

I didn't realize that we need to do that. I'm not sure if this is a better 
way anymore -- it's confusing for authors to have to do that.

Sigh :/

- Aaron



From:
James Craig <jcraig@apple.com>
To:
Aaron M Leventhal/Cambridge/IBM@IBMUS
Cc:
Jon Gunderson <jongund@illinois.edu>, Cynthia Shelly 
<cyns@exchange.microsoft.com>, George Young <gcyoung@microsoft.com>, W3C 
WAI-XTECH <wai-xtech@w3.org>
Date:
09/08/2008 08:24 PM
Subject:
Re: Tree sample code



Aaron M Leventhal wrote:

Cynthia, what do you think about having your tree widget have the keyboard 
UI of a tree?

I think the one I created serves that request, doesn't it? If it's missing 
something, please advise.

http://cookiecrook.com/test/aria/tree/ariatree.html

You could still have it gracefully degrade into nested lists of links in 
screen reader virtual buffers. 

That's a good recommendation to make, but I don't think it's necessary to 
do that amount of browser checking and rewriting for the example code, do 
you? One caveat though. Instead of maintaining a list of user agents that 
support ARIA, maintain a list of old user agents that are known to not 
support ARIA. Assume the best of unknown user agent strings, and serve up 
the full ARIA support.

James