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Re: redundant text links

From: Charles McCathieNevile <charles@w3.org>
Date: Wed, 6 Jan 1999 15:44:44 -0500 (EST)
To: "Leonard R. Kasday" <kasday@acm.org>
cc: w3c-wai-gl@w3.org
Message-ID: <Pine.LNX.4.04.9901061538230.13-100000@tux.w3.org>
The discussion took place in mid November - what I think ought to be a
reasonable solution, but violates the HTML DTD (which, for some reason
does not allow A elements and AREA elements in the same map) is given in
http://lists.w3.org/Archives/Public/w3c-wai-gl/1998OctDec/0209.html
The basic idea is to put both kinds of element in a MAP at the end of a
document, and allow the use of CSS to suppress the display of the MAP's A
elements. In a vaguely insensitive browser they display AND provide ALTs
for the imagemap. If MAP is properly implemented in the future then a
simpler solution could eventually be used, which was in line with the
current DTD. 

(Note for Gregg/Chuck - I think that the GL group should ask HTML-WG
whether there is a good reason why MAP can't have both kinds of content.)

Charles

On Wed, 6 Jan 1999, Leonard R. Kasday wrote:

  I just noticed (sorry didn't notice it earlier) something about the
  recommendation for redundant text links
  
  http://www.w3.org/WAI/GL/wai-gl-techniques-19980918#redundant-links
  
  It shows the links as <A> links inside a <MAP> element so that they are
  only displayed if the image map is not displayed.
  
  But what if a person has 
  - a browser that shows the image map, 
  - but a screenreader that is looking for ALT attributes of <AREA> tags for
  the ALT text? 
  
  The user of that setup will see no text at all.
  
  So I think you need to include the classic redundant text tags, just
  ordinary text links outside the context of <MAP>.  
  
  I like the idea of automatically showing text links when images are off...
  but I think that feature is already implied by the user agent guidelines: see
  
  http://www.w3.org/TR/1998/WD-WAI-USERAGENT-19981112/wai-useragent#tech-rende
  r-alt-info-or
  
  (please copy me if there's a discussion.  I'm not on the GL list).
  
  Len
  -------
  Leonard R. Kasday, Ph.D.
  Universal Design Engineer, Institute on Disabilities/UAP, and
  Adjunct Professor, Electrical Engineering
  Temple University
  
  Ritter Hall Annex, Room 423, Philadelphia, PA 19122
  kasday@acm.org        
  (215} 204-2247 (voice)
  (800) 750-7428 (TTY)
  

--Charles McCathieNevile -  mailto:charles@w3.org
phone: * +1 (617) 258 0992 *  http://purl.oclc.org/net/charles
W3C Web Accessibility Initiative -  http://www.w3.org/WAI
545 Technology sq., Cambridge MA, USA
Received on Wednesday, 6 January 1999 15:44:47 GMT

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