Re: [orca-list] Likely bug in braille word wrapping

[Jason White <jason jasonjgw net>]

Unfortunately... I found a follow-up issue.

Suppose word wrap is enabled, and there's a line containing no spaces 
that is longer than the display size. Panning right currently does not 
move at all, whereas it should move by the full display length to show 
the next portion of the string. Similarly in panning left, of course.

Let's add it to the long issues list.

On 4/28/20 4:19 PM, Jason White via orca-list wrote:
> Thank you, Joanie.
>
> It's definitely a major improvement. I'll test in daily usage and 
> report any further issues here for inclusion in the work queue.
>
>
> On 4/28/20 12:23 PM, Joanmarie Diggs wrote:
> > Hey again.
> >
> > Hopefully I've successfully fixed the creeping backward when panning 
> > to the left problem as well.
> >
> > Given that I really need to focus on some other things, I admittedly 
> > didn't do much testing of either change. It would be super awesome if 
> > you could do so.
> >
> > Thanks again!
> > --joanie
> >
> > On 4/28/20 11:06, Joanmarie Diggs wrote:
> > > Hey Jason.
> > >
> > > This bug is now (hopefully) partially fixed. Namely the panning to 
> > > the right. Your suspicions were correct that the full display size 
> > > was being added without taking ranges into account. That's the part 
> > > that is fixed.
> > >
> > > The creeping slowly back when moving to the left is still there at 
> > > the present time.
> > >
> > > Keep those suspicions coming! :)
> > > --joanie
> > >
> > > On 4/27/20 19:13, Jason White via orca-list wrote:
> > > > Adding this to Joanie's ever-growing queue.
> > > >
> > > > Note: I'm using a 40-cell braille display here.
> > > >
> > > > Steps to reproduce:
> > > >
> > > > 1. With UEB contracted braille and word wrap enabled, display the 
> > > > following line (taken from my emial this morning):
> > > >
> > > > git clone https://gitlab.gnome.org/GNOME/orca.git
> > > >
> > > > 2. Move the cursor to the beginning of the line. The braille 
> > > > display shows "git clone" (contracted, of course) - fine so far.
> > > >
> > > > 3. Pan the braille display to the right, then back to the left.
> > > >
> > > > Expected result: the display should show a continuation of the 
> > > > string ("http" etc. Upon panning back to the left, it should 
> > > > restore the original text (i.e., "git clone").
> > > >
> > > > Actual result: everything from "http" up to "NOME/orca" is skipped 
> > > > upon panning to the right, and panning to the left moves gradually 
> > > > back through the string instead of straight back to the beginning.
> > > >
> > > > I'll send Joanie full debug output separately.
> > > >
> > > > Having looked at the debug output and the code, I have suspicions 
> > > > about the "range" computation (with "git clone" displayed, the 
> > > > range is 48-57, but after panning, it becomes 88-128 (i.e., adding 
> > > > the full display size to starting offset). The range isn't adjusted 
> > > > because the remainder of the line won't fit on the display and 
> > > > cannot be subdivided as there are no spaces. It seems to me that 
> > > > the revised offset should perhaps still be 57, though, and this 
> > > > difference could account for the text being skipped. However, I 
> > > > didn't succeed in working out exactly what was happening by 
> > > > inspecting the source.
> > > >
> > > >
> > > > _______________________________________________
> > > > orca-list mailing list
> > > > orca-list gnome org
> > > > https://mail.gnome.org/mailman/listinfo/orca-list
> > > > Orca wiki: https://wiki.gnome.org/Projects/Orca
> > > > Orca documentation: https://help.gnome.org/users/orca/stable/
> > > > GNOME Universal Access guide: 
> > > > https://help.gnome.org/users/gnome-help/stable/a11y.html
> > >
> > > _______________________________________________
> > > orca-list mailing list
> > > orca-list gnome org
> > > https://mail.gnome.org/mailman/listinfo/orca-list
> > > Orca wiki: https://wiki.gnome.org/Projects/Orca
> > > Orca documentation: https://help.gnome.org/users/orca/stable/
> > > GNOME Universal Access guide: 
> > > https://help.gnome.org/users/gnome-help/stable/a11y.html
> _______________________________________________
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> GNOME Universal Access guide: 
> https://help.gnome.org/users/gnome-help/stable/a11y.html