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Re: [orca-list] Blind debugging in Ubuntu

Or you could have a hack of a function like this in your .bashrc:

winbus()
{
        PID=`pidof gnome-session`
        export DBUS_SESSION_BUS_ADDRESS=`sed 's/\x0/\n/g' /proc/$PID/environ |grep DBUS_SESSION_BUS_ADDRESS 
|cut -b 26-`
}
As far as Accerciser goes, it seems slow to me, at least with Orca, but I'm not sure if I should blame Accerciser for this, or orca, or gail, or some combination thereof. The interaction of at-spi/atk/gail with treeviews can be very inefficient (counting the children or looking for one child will iterate from the beginning of the tree view), and it is particularly an issue with at-spi2. It would be great to come up with a better way of handling it (perhaps gail could cache its data, but I haven't taken the time to investigate whether this would actually be feasible). Anyway, we (the Mono accessibility team) have a couple of scripts to monitor at-spi events or print the hierarchy (they're in the uia2atk svn repository); I generally use them and/or write small scripts to test what I need. Seems quicker that way to me, although I might just not have spent enough time working with Accerciser to get used to it. 


On Tue, 25 May 2010, Bill Cox wrote:


Hi, Jon.  I was able to get Orca running in a console.  It does have
the problem you describe in that switching back and forth from Gnome
to a console sends events to Orca.  However, it's handy when you just
have one machine and want to do a quick pdb.set_trace() in Orca code.

What you have to do is set two environment variables.  The first is
DISPLAY, so in a console execute:

export DISPLAY=:0.0

The second variable is DBUS_SESSION_BUS_ADDRESS.  What I did was in a
gnome terminal:

env | grep aux DBUS > ~/dbus_var

Then, I switched to a console, and typed:

export `< ~/dbus_var`

Then I just type 'orca --replace' in the console.

BIll

On Tue, May 25, 2010 at 11:22 AM, Jon <j orcauser googlemail com> wrote:

Hi,

The way i have managed to get it to work is:

1. gnome terminal
2. screen -x -R
3. export DISPLAY=:0
4. orca

Then from another machine:
1. ssh into first machine.
2. screen -x -R # to reconnect to existing screen session

find out what is happening.
try to fix.
iterate.

The reason why i use a second machine, is that the action of pressing any
keys and switching to another console, runs more orca code.

A while back i tried to start using Accerciser, again, no info/tutorial
was available, and after a few hrs of getting no where, i decided to get
visual assistance to give me the information that i required.

Apparently one could use it from ipython, but again no tutorial.

Yes i am blind.

Hope this helps somewhat

-Jon
On Tue 25/05/2010 at 11:12:37, Bill Cox wrote:

There are some blind programmers who would like to help debug things.
Not being blind, I have not figured out the tricks.  First, is
Accerciser reasonably accessible?  A brilliant blind programmer I knew
tried it over the weekend and could not get anywhere.  Is there any
tutorial for the blind?

Second, it would be great to be able to run Orca in a console while
running speakup.  In particular, if we put a pdb.set_trace() in Orca
code, then obviously Orca stops reading anything in a gnome-terminal.
However, if we can switch to the console, we could single-step and so
on.  In Ubuntu Lucid, after setting DISPLAY=:0.0, typing 'orca
--repalce' on a console screen results in this error:

** (orca:8811): WARNING **: Trying to register gtype 'WnckWindowState'
as enum when in fact it is of type 'GFlags'

** (orca:8811): WARNING **: Trying to register gtype
'WnckWindowActions' as enum when in fact it is of type 'GFlags'

** (orca:8811): WARNING **: Trying to register gtype
'WnckWindowMoveResizeMask' as enum when in fact it is of type 'GFlags'
Traceback (most recent call last):
  File "<string>", line 1, in <module>
  File "/usr/lib/pymodules/python2.6/orca/orca.py", line 1747, in main
    init(pyatspi.Registry)
  File "/usr/lib/pymodules/python2.6/orca/orca.py", line 1266, in init
    registry.registerEventListener(_onChildrenChanged,
  File "/usr/lib/python2.6/dist-packages/pyatspi/registry.py", line
331, in __getattribute__
    raise RuntimeError('Could not find or activate registry')
RuntimeError: Could not find or activate registry

Any ideas how to make it work?  I really want to start getting blind
programmers involved, and these two issues seem like some pretty basic
prerequisites.

Thanks,
Bill
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Visit http://live.gnome.org/Orca for more information on Orca.
The manual is at http://library.gnome.org/users/gnome-access-guide/nightly/ats-2.html
The FAQ is at http://live.gnome.org/Orca/FrequentlyAskedQuestions
Netiquette Guidelines are at http://live.gnome.org/Orca/FrequentlyAskedQuestions/NetiquetteGuidelines
Log bugs and feature requests at http://bugzilla.gnome.org
Find out how to help at http://live.gnome.org/Orca/HowCanIHelp

_______________________________________________
orca-list mailing list
orca-list gnome org
http://mail.gnome.org/mailman/listinfo/orca-list
Visit http://live.gnome.org/Orca for more information on Orca.
The manual is at http://library.gnome.org/users/gnome-access-guide/nightly/ats-2.html
The FAQ is at http://live.gnome.org/Orca/FrequentlyAskedQuestions
Netiquette Guidelines are at http://live.gnome.org/Orca/FrequentlyAskedQuestions/NetiquetteGuidelines
Log bugs and feature requests at http://bugzilla.gnome.org
Find out how to help at http://live.gnome.org/Orca/HowCanIHelp


_______________________________________________
orca-list mailing list
orca-list gnome org
http://mail.gnome.org/mailman/listinfo/orca-list
Visit http://live.gnome.org/Orca for more information on Orca.
The manual is at http://library.gnome.org/users/gnome-access-guide/nightly/ats-2.html
The FAQ is at http://live.gnome.org/Orca/FrequentlyAskedQuestions
Netiquette Guidelines are at http://live.gnome.org/Orca/FrequentlyAskedQuestions/NetiquetteGuidelines
Log bugs and feature requests at http://bugzilla.gnome.org
Find out how to help at http://live.gnome.org/Orca/HowCanIHelp
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