- From: Charles McCathieNevile <charles@w3.org>
- Date: Fri, 14 Apr 2000 09:35:58 -0400 (EDT)
- To: "Leonard R. Kasday" <kasday@ACM.org>
- cc: Bruce Bailey <bbailey@clark.net>, david@davidsaccess.com, w3c-wai-ig@w3.org
I don't think we have a problem - AT&T have done exactly what is asked for in
checkpoint 6.2 (and a couple of others). The problem that it can't be used in
all browsers is addressed by checkpoint 6.4 - ensure that pages work when
scripts and applets are not supported...
Charles McCN
On Mon, 10 Apr 2000, Leonard R. Kasday wrote:
> The issue raised on http://www.att.com would be addressed by
> guideline 6.2,
> make the users aware of dynamic content. It should not be on the AT vendor
> to account for it.
Well, if we look at 6.2 literally it says
"Ensure that equivalents for dynamic content are updated when the dynamic
content changes."
The AT&T site changes the alt text when the content changes. So it's
fulfilled 6.2. The problem is that existing browsers and screenreaders
don't communicate that to the user at least with lynx.
Now actually 6.2 probably meant something else since it says to ensure that
pages are accessible when newer technologies are not accessible or turned off.
So we've got a problem here. AT&T tried to do the right thing here it
seems to me, but our AT doesn't take advantage of it. Ideally, we need
both content and AT to contribute. But we're not there yet. So in the
meantime, content providers need to figure out some other way of showing
the extra content. Perhaps in the long description or d link?
In other words, we need a feature like when screenreaders automatically
read popups in non-web programs.
> > I also think that mouseover and onfocus are synonymous.
I don't think so... see the thread "General Input Model". Logically, "on
focus" is really "on keyboard focus", i.e. when an object has keyboard
focus something happens to it when the you press buttons on the
keyboard. "On mouseover" is really "on mouse focus"; i.e. when an object
has mouse focus something happens when you press buttons on the mouse. In
both cases, events like popups can happen when an object gets focus, even
if nothing is clicked.
Sometimes you can tie these two types of focus together. But it can at
other times be convenient to keep them separate. For example, you could
have screen with your text cursor in a text field... i.e. you give that
text field text focus... while you move the mouse focus over some help
objects to get help.
If the mouse focus was tied to the keyboard focus so you just had one
"focus", you'd have to move that focus over to the help objects and then
move it back again, but that's extra time, especially when you're moving
the mouse focus without an actual mouse. In some jobs, every second counts.
It's similar to why with screenreaders there's a screenreader cursor that's
separate from the application cursor. You could imagine operating things
with just one cursor, but it would be really tedious.
Len
--
Leonard R. Kasday, Ph.D.
Institute on Disabilities/UAP, and
Department of Electrical Engineering
Temple University
423 Ritter Annex, Philadelphia, PA 19122
kasday@acm.org
http://astro.temple.edu/~kasday
(215) 204-2247 (voice)
(800) 750-7428 (TTY)
--
Charles McCathieNevile mailto:charles@w3.org phone: +61 (0) 409 134 136
W3C Web Accessibility Initiative http://www.w3.org/WAI
Location: I-cubed, 110 Victoria Street, Carlton VIC 3053
Postal: GPO Box 2476V, Melbourne 3001, Australia
Received on Friday, 14 April 2000 09:36:04 UTC