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Re: Running ChromeVox as a library in a web page?


From: Robert Fentress
Date: Aug 31, 2017 9:25AM

I've *really* gotta make the time to explore UIA. I've heard you mention
it before and it seemed intriguing, but I just haven't gotten around to it

On Wed, Aug 30, 2017 at 9:26 PM, Jonathan Avila < <EMAIL REMOVED> >

> > absent something like this, how you keep moving forward in terms of UI
> patterns.
> Ultimately we need a way to communicate the patterns a control supports,
> the actions associated with a control, and a method to activate those
> actions. Instead of solely relying on all sorts of keystrokes if there was
> a programmatic way to communicate this and perform the actions like those
> provided through the actions rotor on VoiceOver it would provide
> consistency and flexibility. Accessibility APIs like UIA support the
> above at some depth but the ARIA semantics still need to catch up as they
> are focused on roles and not patterns and there are not great ways of
> communicated in the DOM the different actions and perform those. Web
> accessibility will in time be moving into where we can access the
> accessibility API through JavaScript and these areas will be better
> supported. The challenge has been up to this point to get the assistive
> technology and user agents updated to support the current ARIA consistently
> -- which has taken years to get where we are today.
> Jonathan
> Jonathan Avila
> Chief Accessibility Officer
> Level Access, inc. (formerly SSB BART Group, inc.)
> (703) 637-8957
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> -----Original Message-----
> From: WebAIM-Forum [mailto: <EMAIL REMOVED> ] On
> Behalf Of Robert Fentress
> Sent: Wednesday, August 30, 2017 7:53 PM
> To: WebAIM Discussion List < <EMAIL REMOVED> >
> Subject: Re: [WebAIM] Running ChromeVox as a library in a web page?
> Thanks for your thoughtful response.
> I guess I'm thinking of complex composite widgets where it is not entirely
> clear what pattern fits, but you want to make sure it's not going to be
> totally fubar. An example: I've seen a complex autocomplete-like widget,
> where you are in a field and start typing in characters and a list of users
> appears in a listbox structure. When you arrow down to select a user and
> press Enter, a sort of badge appears in the field (or at least appears to
> be in the field, anyway), indicating you've added that user to a list of
> users, to be used for whatever process you are trying to accomplish. Then,
> you can start typing again, bringing up another listbox where you can
> select another user to be added as a sort of badge in that field, and so
> on. The badges in the field have little exes in them, allowing you to
> remove them. It can all be accessed using only the keyboard somehow, but
> exactly how you structure that in terms of ARIA patterns, and what keyboard
> interaction model to use is not 100% clear, at least in my mind.
> Therefore, what I would want to know, as a conscientious developer, is if
> this thing--whatever it is--is going to presented in *some sort of sensible
> way* to a screen reader user. In cases like this, JAWS may not understand
> the semantics the developer is trying to express exactly right and present
> a possibly confusing mishmash of cues and affordances, but VoiceOver may
> guess what you mean to be conveying well, and so on. It would be helpful
> in complex cases like this to be able to say something like, "Look, I know
> this is a weird widget I've made here, but it does provide useful
> affordances to many users, and I don't want to just stuck be with this
> limited palette of widgets that the ARIA authoring practices has blessed.
> I've tried to use semantics that are proper though, and it doesn't trigger
> any parsing errors, and I have at least tested this out in ChromeVox and
> know it works somewhat sensibly there, so if it doesn't work exactly how
> you'd like it to work with your particular screen reader, you can at least
> use this in-page screen reader I've provided, and it'll work there."
> I know that sucks, and your point about how weird it would be to switch
> screen readers mid-stream is well taken. It is awkward and probably
> unrealistic--maybe even a pro-forma copt-out. That being said I guess I'm
> still confused, absent something like this, how you keep moving forward in
> terms of UI patterns. This, at least, provides one path that is, to twist
> the meaning a little, "accessibility supported." Hope that made sense.
> On Wed, Aug 30, 2017 at 6:11 PM, Patrick H. Lauke < <EMAIL REMOVED> >
> wrote:
> > On 30/08/2017 22:36, Robert Fentress wrote:
> > [...]
> >
> >> I've mentioned this before and folks seemed to be baffled by why one
> >> would want to do such a thing, but I didn't totally understand the
> >> criticism, so I'd appreciate anyone who wished to (kindly) enlighten
> >> me. Basically, my thinking is that, if this were an option,
> >> developers could code their page or web application to standards, as
> >> best they could interpret them, and then test with ChromeVox. If it
> >> worked with that, and the developer could, essentially, include that
> >> screen reader as an option on the page itself, then it would help
> >> ensure at least a floor for screen reader accessibility. It would
> >> also provide another option for users, in general, to interact with
> >> their site.
> >>
> >
> > This *may* help a subset of users that would require a screen
> > reader/AT - mainly those with mild vision impairment, or users that
> > with cognitive disabilities who would benefit from self-voicing pages.
> > Clearly, any other users that do rely on screen readers would already
> > need to have a screen reader installed anyway (in order to log in,
> > open the browser, navigate to the site, etc), but of course that's
> > also true for ChromeVox itself. But having it installed as extension
> > at browser level means that these users still benefit from it on all
> > websites, not just on the ones that decided to install some form of
> > site-specific ChromeVox library. Also, having it at browser level
> > means that users can set their preferences globally, while a
> > site-specific version would need it own settings - and then the user
> > goes to another site that implements this sort of thing, and the
> > settings need to be changed again for THAT site. This then goes into
> > the same territory as the discussion around the benefits of
> site-specific "text resize widgets" versus users actually using text sizing
> options in their browser...
> >
> > I think many developers want to do right, but don't have the time to
> > learn
> >> all the ins and outs of how different screen readers interpret things
> >> or to test in a half dozen or more different screen
> >> reader/browser/platform combinations, guessing, without any really
> >> reliable data, on what those might be.
> >>
> >
> > In general, screen readers interpret well-formed and correctly
> > implemented HTML/ARIA stuff fairly uniformly - at least compared to
> > years ago. Ideally developers need to learn the "correct" way to mark
> > things up (particularly referring to official ARIA patterns) and then
> > their sites should work quite well in recent AT. Sure, every AT has
> > bugs (the same way every browser has bugs), but the answer to that is
> > not to just decide to bless one particular implementation (ChromeVox) as
> the de-facto standard...
> >
> > P
> > --
> > Patrick H. Lauke
> >
> > www.splintered.co.uk | https://github.com/patrickhlauke
> > http://flickr.com/photos/redux/ | http://redux.deviantart.com
> > twitter: @patrick_h_lauke | skype: patrick_h_lauke
> > > > > > archives at http://webaim.org/discussion/archives
> > > >
> --
> Rob Fentress
> Senior Accessibility Solutions Designer
> Assistive Technologies at Virginia Tech
> Electronic Business Card (vCard)
> <http://search.vt.edu/search/person.vcf?person54847>
> LinkedIn Profile
> <https://www.linkedin.com/in/rob-fentress-aa0b609?trk=profile-badge>
> > > at http://webaim.org/discussion/archives
> > > > > >

Rob Fentress
Senior Accessibility Solutions Designer
Assistive Technologies at Virginia Tech
Electronic Business Card (vCard)
LinkedIn Profile