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Re: What are UA responsibilities when content "takes over" UI controls?

From: Jon Gunderson <jongund@uiuc.edu>
Date: Mon, 26 Feb 2001 09:24:14 -0600
Message-Id: <>
To: Ian Jacobs <ij@w3.org>, w3c-wai-ua@w3.org
I think that the author needs to be able to control the information in 
accessible way.  So if non-text can be added to the user agent, then there 
must be a way to add a text equivalent.  I don't think we should try to 
address what author behavior should be at this point.


At 12:55 PM 2/24/2001 -0500, Ian Jacobs wrote:
>In certain cases, the author may "take over" parts of the
>user agent's user interface. I'm thinking specifically
>of the status bar (are there others?). What should UAAG 1.0
>say about this? This is content that is rendered through the
>user interface, but should our "content" requirements apply
>here (e.g., stop blinking, change foreground and background
>colors) or just our UI requirements (e.g., text equivalent
>for messages, follow OS conventions)?
>It is my opinion that since these checkpoints involve
>the user agent's user interface (even though it's being
>manipulated by the author), and the UA's UI is under
>the full control of the UA developer, then only the
>UI requirements should apply, notably checkpoint 5.13
>(follow OS conventions).
>I also think that WCAG should say something about
>this, although I'm not sure what yet. I don't know
>enough about whether it causes problems for users.
>  - Ian
>[1] http://www.w3.org/WAI/UA/WD-UAAG10-20010126/
>Ian Jacobs (jacobs@w3.org)   http://www.w3.org/People/Jacobs
>Tel:                         +1 831 457-2842
>Cell:                        +1 917 450-8783

Jon Gunderson, Ph.D., ATP
Coordinator of Assistive Communication and Information Technology
Division of Rehabilitation - Education Services
College of Applied Life Studies
University of Illinois at Urbana/Champaign
1207 S. Oak Street, Champaign, IL  61820

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

E-mail: jongund@uiuc.edu

WWW: http://www.staff.uiuc.edu/~jongund
WWW: http://www.w3.org/wai/ua
Received on Monday, 26 February 2001 10:21:46 UTC

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