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Re: [orca-list] eclipse and status line

Hi Will, Jann and all,
Last night I spent part of my night trying to detect the object hierarchy that represents the status bar in eclipse. 
had No luck till now, but I didn't give up.
I need to find some documentation about accessibility in eclipse.

Thanks.

On 17-03-2009 19:41, Willie Walker wrote:

Hi Jann:
Orca likes it when applications use things as designed by the toolkit. It helps give it hints about what something really is in the GUI. For example, using something like a GtkStatusBar (http://library.gnome.org/devel/gtk/unstable/GtkStatusbar.html) for a status bar helps Orca know the thing is a status bar. 
With Eclipse, the status bar is kind of a complex nesting of panels 
and objects, with no notion of the 'status bar' role expressed 
anywhere in the hierarchy.

If Eclipse can be changed to use something that exposes itself as a 
status bar via the AT-SPI, then that would be awesome. I might be in 
kind of a jaded mood right now (sorry), so I'm suspecting that the 
Eclipse team will be more interested in developing push back to 
changing things at the source instead than working on a solution. :-(  
Please forgive me if I'm wrong about that - I jumped to this suspicion 
without reason or evidence that it was the case.

So, without changes to Eclipse, we can script in Orca to try to detect 
the object hierarchy that is the status bar in Eclipse and then 
present that as the status bar.

Will

Jann Schneider wrote:

Hi all,


what kind of script will this be? Some kind of an orca patch? I think 
it would be nice to implement an eclipse plugin instead to have the 
portability to also use this plugin on ALL Platforms.

Also I'm not quite sure, if you mean the status bar or the quick 
overview ruler beside the editor. But yes, both of them are currently 
inaccessible...

@All: if one of you encounter such problems or simply has some nice 
ideas on how to improove accessibility on eclipse PLEASE drop me a 
line on live.gnome.org/JannSchneider

I will paralell see what I can do with an plugin to provide such 
content for example on a simple text viewpart or something nicely 
readable ..

Regards J&J

Jose Vilmar Estacio de Souza schrieb:

Hi Will,

I'll try to create a custom script, however I'll need some help 
since I don't know the orca's structure.

I've the following questions:

1) How orca identify the script to be loaded? I suspect that is 
using the application name. Assuming that it is true, I'll have 
problems since orca can not identify correctly the eclipse's name.

2) In the WhereAmI class I found a function called _speakStatusBar 
with the following line:

        text = self._getObjName(self._statusBar)

I am assuming that this code retrieves the content of the status 
bar. Is this correct? It can be used to retrieve the content of 
different kinds of componnents?

Thanks.

On 16-03-2009 09:40, Willie Walker wrote:

Thanks Jose!


Yep - looks like eclipse isn't putting things in a status bar.  So, 
Orca's default code won't find it.  In order to get this working 
with eclipse, it looks like either eclipse needs to be modified to 
put things in a real status bar object or a custom script for Orca 
will need to be written so its where am I code can discover the 
status-bar-like-thing in eclipse.

If you are a programmer, would you like to give this a try?  I 
think what you'd need to do is create a script for eclipse that 
merely provides a custom WhereAmI class that overrides the 
_getStatusBar method.

Will

Jose Vilmar Estacio de Souza wrote:

Hi Will,


With help of my son I could verify that the information that I am 
looking for is present in a component that is announced by orca as 
panel.
This component has information like line and column number where 
the cursor is positioned, information about presence of erros in 
the line and etc.
I suspected that eclipse team did not code this component as a 
status bar.


Thanks.

On 15-03-2009 22:21, Willie Walker wrote:

It turns out I was able to get a copy of eclipse 3.4.0 for 
OpenSolaris 2008.11 b109 rather easily, so I was able to do some 
quick digging.

I'm not seeing the same application name strangeness you are, but 
I do see the NULL children problem.  I'm also not finding 
anything of role status bar in the hierarchy.

Do you have sighted assistance that could verify a status bar 
exists in the UI where you're trying to find a status bar?  In 
addition, if you could take a screen shot (press PrintScreen) of 
the window you're observing, it would be great.

Thanks!

Will


Willie Walker wrote:

Hi Jose:


The suspicious things are the strange application name and the 
NULL children.  I've never dug into eclipse to figure out how it 
might be interacting with AT-SPI, so I'm not sure what might be 
going wrong.  It might be an AT-SPI infrastructure change that 
caused the problem, but I'm not sure.

If you want to file a bug with Orca and don't mind that it might 
take us a while to get to it (Eclipse is not at the top of our 
priority list at the moment :-(), we might be able to take a 
look sometime in the coming months.  If you'd like more 
immediate action, however, you might point the Eclipse folks to 
the bad app name and the NULL children and perhaps recommend 
they use accerciser as a means to start debugging the problem.

Will

Jose Vilmar Estacio de Souza wrote:

Hi Will,

I'll try to open a bug in bugzilla site.

is there something in special that must be pointed?

What evidences may I include? The erros (trace messages from 
orca are sufficient)?
Is it possible that the problems found can be caused by an old 
version of accessibility infra-structure?

Thanks again.

On 15-03-2009 19:57, Willie Walker wrote:

Yech - yeah it looks like the accessible hierarchy Orca is 
getting from Eclipse is screwed in some way.  This might be 
something that needs to be taken to the Eclipse team since it 
seems to be out of our hands.  :-(

Will

Jose Vilmar Estacio de Souza wrote:

OK, in attach a file with the the content after I press 
orca_key+ctrl+alt+pageDown.

I didn't find mentions to something like a status bar.

Another strange thing is the content shown to app.name.
Thanks.

On 14-03-2009 21:56, Willie Walker wrote:

After I got this error I included the same suggested code 
before line 1882.

            if not child:
                continue
            state = child.getState()


No more erros. However I can not get the content of the 
status line.

Bummer.


It seems that eclipse doesn't provide a status bar. I 
remember that when I was a jaws user, I could access 
something like a status bar.
In this component I could read information about line and 
collumn position, and error messages.

It might have a status bar, but it looks as though something 
might screwed up enough in the hierarchy so as to prevent 
Orca from getting to it.  I don't have eclipse handy, so I 
can't debug this. :-(

You *might* try pressing Insert+Ctrl+Alt+PageDown to invoke 
the Orca debug command that dumps the hierarchy of the 
application to the console where Orca is started.  You could 
search that for any sign of a status bar.  This attempts to 
dump the complete hierarchy, so it can be very verbose, 
though.  In addition, since we might be dealing with a 
broken hierarchy in ecplise, the debug code might end up 
running into that to.

Will



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