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Re: W3C User Agent Teleconference for 3 November 2005

From: Jon Gunderson <jongund@uiuc.edu>
Date: Wed, 16 Nov 2005 16:23:34 -0600
To: Aaron Leventhal <aaronlev@moonset.net>
Cc: WAI-UA <w3c-wai-ua@w3.org>
Message-Id: <23354407.5c512ed4.8227c00@expms1.cites.uiuc.edu>
I would also add a 4 type of navigation, which is probably
part of 3, which includes major and minor topics and
navigation bars, ec..


---- Original message ----
>Date: Wed, 16 Nov 2005 19:07:30 +0100
>From: Aaron Leventhal <aaronlev@moonset.net>  
>Subject: Re: W3C User Agent Teleconference for 3 November 2005  
>To: Charles McCathieNevile <chaals@opera.com>
>Cc: jimallan@tsbvi.edu, WAI-UA <w3c-wai-ua@w3.org>
>> An alternative would be to define, in format
specifications, that 
>> anything that has intereaction behaviour (an event
listener, or a 
>> default interactivity), should be focusable.
>Isn't there a problem that an event handler may be on the
container for 
>something so that it can listen to the event on any
descendant? It just 
>uses event.target in the script to see where the event
happened. We also 
>have the problem that there are no descriptions for XML event
>so even if a user can get there, how will they know what these 
>programmatic event names mean?
>To help the discussion, here are 3 kinds of navigation we
need to 
>support in every kind of web content:
>1. Simple controls are in tab order
>- Examples: checkbox, slider
>2. Container controls group focusable children
>- Examples: trees, lists, radio groups, spreadsheets
>- The last focused child is in the tab order
>- Other children can be focused via the pointer
>- Key navigation managed by the container widget (often arrows)
>3. Non-interactive content won’t take input
>- Examples: progress meter, alerts, doc structural elements
>- Click to focus skips, goes up parent chain for focus
>- On screen keyboards don’t list them as choices
>- Screen readers skip them in navigation order
>- Voice input skips them during “say what you see” vocab buildup

Jon Gunderson, Ph.D., ATP
Director of IT Accessibility Services
Campus Information Technologies and Educational Services (CITES)
Coordinator of Assistive Communication and Information Technology
Disability Resources and Education Services (DRES)

Voice: (217) 244-5870
Fax: (217) 333-0248

E-mail: jongund@uiuc.edu

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Received on Wednesday, 16 November 2005 22:23:59 UTC

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