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Re: highlighting the focus

From: Jon Gunderson <jongund@ux1.cso.uiuc.edu>
Date: Fri, 08 Dec 2000 08:38:31 -0600
Message-Id: <4.3.1.2.20001208083417.02af7e10@staff.uiuc.edu>
To: Al Gilman <asgilman@iamdigex.net>, Loretta Guarino Reid <lguarino@Adobe.COM>, w3c-wai-ua@w3.org
Cc: schwer@us.ibm.com, jacobs@w3.org, lguarino@Adobe.COM
If no element has focus when the window opens, then there would be no 
element that would need to be highlighted. There are requirements for 
configuration of focus management as new windows open (Checkpoint 
4.18).  The compliance problem is if an element did have focus and was not 
highlighted by the styling selected (checkpoint 4.17) by the user.

Jon



At 10:52 PM 12/7/2000 -0500, Al Gilman wrote:
> >At 05:06 PM 12/6/2000 -0800, Loretta Guarino Reid wrote:
> >>Do the User Agent Guidelines indicate whether the element with the current
> >>focus must always be highlighted?
> >>
> >>My impression is that focus elements are highlighted when I move focus to
> >>them via keyboard commands, but if, for instance, I just open an
> >>application, the focus element may not be highlighted.
> >>
> >>As an example, if I open a web page in Internet Explorer, there is no
> >>indication of the focus element. However, if I start tabbing, each new
> >>focus element is highlighted.
>
>At 08:31 AM 2000-12-07 -0600, Jon Gunderson wrote:
> >Loretta,
> >The situation you describe would mean the user agent would not comply to
> >UAAG.  There are also additional checkpoints that relate to styling and
> >behavior of focus.
> >
>
>AG::
>
>Is this really true?  As I interpret the IE behavior, on opening the page _no_
>element has the focus and that is why there is no focused element highlighted.
>
>I would be surprised if this were not consistent with "the standard model for
>focus in this OS environment" since so much of the OS user interface is run
>through the IE module for its realization.
>
>Al
>
>
> >4.17 Allow the user to configure how the content focus is highlighted
> >(e.g., foreground and background color, voice pitch, etc.). For graphical
> >viewports, offer at least three rendering options, including colors and
> >fonts. For graphical viewports, allow the user to select from among the
> >range of system colors and fonts. The default focus highlight mechanism
> >must be different from the default selection highlight mechanism.
>[Priority 1]
> >Note: For information for control of speech output and using those
> >parameters for highlighting, refer to checkpoint 4.14.
> >
> >4.18 Allow the user to configure whether the current focus moves
> >automatically to a viewport that opens without an explicit request from the
> >user. [Priority 2]
> >
> >4.19 Ensure that when a viewport's selection or content focus changes, it
> >is in the viewport
> >after the change. [Priority 2]
> >Note: For example, if users navigating links move to a portion of the
> >document outside a graphical viewport, the viewport should scroll to
> >include the new location of the focus. Or, for users of audio viewports,
> >allow configuration to render the selection or focus
> >immediately after the change.
> >
> >Jon
> >
> >
> >At 05:06 PM 12/6/2000 -0800, Loretta Guarino Reid wrote:
> >>Do the User Agent Guidelines indicate whether the element with the current
> >>focus must always be highlighted?
> >>
> >>My impression is that focus elements are highlighted when I move focus to
> >>them via keyboard commands, but if, for instance, I just open an
> >>application, the focus element may not be highlighted.
> >>
> >>As an example, if I open a web page in Internet Explorer, there is no
> >>indication of the focus element. However, if I start tabbing, each new
> >>focus element is highlighted.
> >>
> >>                 Loretta Guarino Reid
> >>
> >>
> >>The relevent guidelines and definitions seem to be
> >>
> >>8.6 Implement selection, content focus, and user interface focus
> >>mechanisms. Implement them according to system conventions (per checkpoint
> >>5.8). [Priority 1]
> >>8.7 Provide a mechanism for highlighting the current viewport, selection,
> >>and content focus. [Priority 1]
> >>
> >>Focus, content focus, user interface focus, current focus
> >>The notion of focus refers to two identifying mechanisms of user agents:
> >>         1.The "content focus" designates an active element in a document.
> >> A viewport has at most one content focus.
> >>         2.The "user interface focus" designates a control of the user
> >> interface that will respond to user input (e.g., a radio button, text
> >> box, menu, etc.).
> >>In this document, the term "focus" by itself encompasses both types of
> >>focus. Where one is meant specifically in this document, it is identified.
> >>
> >>When several viewports coexist, each may have a content and user interface
> >>focus. At all times, only one content focus or one user interface focus is
> >>active, called the current focus. The current focus responds to user input
> >>and may be toggled between content focus and user interface focus through
> >>the keyboard, pointing device, etc. Both the content and user interface
> >>focus may be highlighted. Refer also to the definition of point of regard.
> >
> >Jon Gunderson, Ph.D., ATP
> >Coordinator of Assistive Communication and Information Technology
> >Division of Rehabilitation - Education Services
> >MC-574
> >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>http://www.staff.uiuc.edu/~jongund
> >WWW: <http://www.w3.org/wai/ua>http://www.w3.org/wai/ua
> >

Jon Gunderson, Ph.D., ATP
Coordinator of Assistive Communication and Information Technology
Division of Rehabilitation - Education Services
MC-574
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 Friday, 8 December 2000 09:37:25 GMT

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