W3C home > Mailing lists > Public > public-html-a11y@w3.org > September 2010

[Bug 10455] Mint a describedby attribute for the img element

From: <bugzilla@jessica.w3.org>
Date: Wed, 08 Sep 2010 19:41:31 +0000
To: public-html-a11y@w3.org
Message-Id: <E1OtQWR-0001fz-U3@jessica.w3.org>
http://www.w3.org/Bugs/Public/show_bug.cgi?id=10455





--- Comment #80 from Gregory J. Rosmaita <oedipus@hicom.net>  2010-09-08 19:41:31 ---
benjamin previously asked,

quote
> Does the programmatic relationship of @longdesc generally outweigh the
> confusion that can be had when someone with Jaws get both a @longdesc
> announcement as well as a link to the same page? 
unquote

and

quote 
> Is JAWS, for instance, able to ignore a D-link that points to the same places
> > > as a @longdesc link pionts?
> > 
> > JAWS 11 apparently includes a feature for automatically filtering out all
> > duplicate links:
unquote

quote
> http://www.freedomscientific.com/downloads/jaws/JAWS-whats-new.asp
> I don't know if it applies this behavior to "longdesc".
quote

one cannot filter out LONGDESC from links because JAWS 11 does not include
LONGDESC values in its list of links, it does not include longdesc in the
tab-navigation order, nor does it provide an indication that a long description
is available for a graphic; 

since longdesc values do NOT appear in the tab navigation order when using
JAWS, in order to get to a longdesc, one can use the list of graphics contained
in the document in order to retrieve the long description, by using the
Graphics List to move focus to an individual graphic, whose longdesc can then
be accessed by hitting the ENTER key (not the way i would have designed it, but
that is the way it works)

longdesc values do NOT appear in JAWS' list of links, nor does JAWS provide a
means of indicating to the user that a long description is available -- to
discover if a longdesc is available, one needs to place focus on a graphic and
then hit enter to ascertain if a long description is available

D-links do appear in the JAWS list of links, but unless WCAG 2.0 Technique C7
is used, it is difficult (read: impossible for most users) to differentiate
between individual D links

so, even when one enables "filter duplicate links" with current and past
versions of JAWS, it will still include the D-link even if there is a identical
longdesc value defined for the graphic, and there remains the problem
(repeatedly reported to JAWS' developers) that there is a need to indicate
when/if a longdesc is available for a graphic in the list of graphics and to
include an option for users to place graphics with long descriptions defined
for them into the tab-order

i hope this clarifies what JAWS can and does do with longdesc and supplemental
D-links that point to the identical resource

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Received on Wednesday, 8 September 2010 19:41:33 UTC

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