Re: [orca-list] Firefox caching

[Michael Whapples <mwhapples aim com>]

So can I just check, does this mean orca will still directly access the 
page rather than virtual buffers (or whatever you want to call it), but 
just offer an additional layout mode?

I would have to say that the direct access to the page seems to work far 
better than my experience with windows screen readers using virtual 
buffers (many of the reasons given, the main one being how orca handles 
dynamically changed pages) and so I would not like to see the current 
behaviour of orca change.

If my understanding is right, I would say to those who say why would 
anyone want one link per line, I don't know but are we here to ask them 
why? If there's a demand for a given presentation then why not have it 
as an option particularly if it won't affect your preferred presentation?

Regarding performance of orca and firefox, I wonder if some of the 
problem really comes from some of the work arounds and checking has to 
do because of firefox issues. I am partly basing this idea on how other 
screen readers which don't use virtual buffers perform (I believe 
voiceover and the firevox plugin both don't use virtual buffers) and I 
guess another clue to potential performance with direct access can be 
judged by how orca performs with webkit (I think I have seen messages 
which suggest webkit behaves better and may need less checking by orca).

Also virtual buffers won't solve all gecko performance problems, eg. in 
thunderbird when you have many messages (eg. 1000) in a folder orca is 
slow to respond in that list and virtual buffers would not be used there.

Michael Whapples
On -10/01/37 20:59, Joanmarie Diggs wrote:
> Hi Mike.
>
> On Sun, 2010-09-12 at 11:01 -0500, Mike Reiser wrote:
>    
> > I'll just chime in here and say that nvda on windows has a mode in
> > it's virtual buffer that displays the page like orca does called screen
> > layout.  If you turn this mode off it displays links one line at a time,
> > can't this be put into orca as a compromise?
> >      
> If you look at the Orca draft proposed road map [1] you will see that
> doing so is already planned.
>
> Take care.
> --joanie
>
> [1] http://live.gnome.org/Orca/Roadmap
>
>
>