Re: [orca-list] Problem with orca and webkit in epiphany

["Michael Whapples" <mwhapples aim com>]

Thanks for adding those bug reports.

Also thanks for those explanations of what is going on. Would you like some 
heavy testing of webkit over the next few days/week/2weeks so you have a 
decent amount of feedback before that event?

Is webkit 1.6.1 new enough, I know that very early on it really had to be 
the development code.

Michael Whapples
----- Original Message ----- 
From: "Joanmarie Diggs" <jdiggs igalia com>
To: "Michael Whapples" <mwhapples aim com>
Cc: "orca" <Orca-list gnome org>
Sent: Tuesday, November 15, 2011 2:34 PM
Subject: Re: [orca-list] Problem with orca and webkit in epiphany


> Hey Michael.
>
> > at how webkit support is coming along. What is the official status of 
> > webkit
> > support in orca?
>
> With the exception of what you have found thus far, Orca should be
> fine presenting basic content. Over the next week or two, I will be
> evaluating exactly where things are status-wize, adding new support in
> Orca where the issue is on our side; filing bugs against WebKitGtk
> when the issue is on their side.
>
> On a related note, two weeks from now is the WebKitGtk hackfest being
> hosted at Igalia. I will be at that event. So not only will I get even
> more focused time to work on these issues, I will be in the same room
> as Mario (the WebKitGtk accessibility developer). So I think we'll be
> able to accomplish quite a bit on Orca + WebKitGtk and also provide a
> much more detailed "official status update" afterwards.
>
> Getting back to your bug, as you may have already seen, I opened a new
> bug for you in GNOME's bugzilla against Orca:
> https://bugzilla.gnome.org/show_bug.cgi?id=664104
>
> It turns out the problem is in WebKitGtk, therefore I also opened a bug 
> there:
> https://bugs.webkit.org/show_bug.cgi?id=72382
>
> My suspicion -- which might be totally bogus -- is that you found a
> case where the "flattening" of the hierarchy was overlooked. Which
> brings me to, what on earth am I talking about with this "flattened
> hierarchy" stuff? <smiles>
>
> In a nutshell, WebKitGtk does two extremely useful things for us (Orca
> and its users):
>
> 1. Implements native caret navigation properly. Benefit: Orca is not
> capturing every last arrow press and then trying to figure out where
> you are, where the next line might be, put you on that next line,
> filter out any events that we triggered as a result of re-positioning
> you, etc., etc. Also text selection JustWorks(tm).
>
> 2. Flattens the hierarchy of text objects. Benefit: When you navigate
> and we get a caret-moved event, Orca doesn't have to try to piece
> together a line of text which on the screen is just a line of text,
> but in actuality might be made up of different objects.
>
> In other words, all of the heavy lifting is being done by WebKitGtk --
> which is in a much better position to know where the caret should go
> and what the full text of a line is than Orca is. <smiles> However,
> all of that work done by WebKitGtk's accessibility implementation to
> make our lives better is not trivial -- especially not the flattening
> part. Based on what is being reported as the current line as you
> navigate in the code samples looks rather like what I used to see when
> the flattening work was still very much under construction.
>
> > Could this be related to the issue in gedit where lines were being run 
> > into
> > one although the cursor was still respecting the lines when moving?
>
> Nope. That problem was a regression which occurred in Gtk+ 3 when they
> were integrating Gail (so that it is no longer a separate module). A
> fix has been committed to Gtk+ master for that issue and I have been
> told that they will also add that fix when the new the next stable
> Gtk+ release.
>
> Hope this helps clarify things. If not, you know where to find me. <grins>
>
> Take care.
> --joanie
>
>
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