Re: [Bug 332660] GTK file picker as used in Firefox is not accessibile for GOK (Mozilla strips atk-bridge from GTK_MODULES)

[Ginn Chen <Ginn Chen Sun COM>]

Hi Padraig,

I tried to use GTK_MODULES=:gail before starting firefox.
I think libgail.so is loaded.
But it doesn't help.

Thanks,

Ginn

On Apr 18, 2006, at 9:23 PM, Padraig O'Briain wrote:

> If firefox uses GTK widgets the mozilla accessibility module will  
> need to load the GTK module libgail.so as it contains the  
> accessibility implementation for GTK widgets.
>
> I would suggest that the mozilla accessibility module load gail  
> before it does its own initialization.
>
> There may be problems getting gail and mozilla accessibility module  
> to co-exist but we will just have to work through these problems.  
> For instance, I am not sure how traversing the accessible object  
> hierarchy will work when we mix objects from different toolkits.
>
> Padraig
>
> Ginn Chen wrote:
> > Hi Peter,
> >
> > Thanks for your reply.
> >
> > On Apr 18, 2006, at 1:21 PM, Peter Korn wrote:
> >
> > > Hi Ginn,
> > >
> > > I don't see a way around this, other than perhaps more  
> > > selectively setting/unsetting GTK_MODULES (or otherwise  
> > > explicitly loading gail and atk-bridge into those widgets that  
> > > are in use in these dialogs.
> > Setting GTK_MODULES before creates the dialog doesn't work.
> > I think we can't do this because they run in same process.
> >
> > > Perhaps you could explain in more detail why Mozilla is having  
> > > trouble when gail/atk-bridge are loaded?
> > With GTK_MODULES set, atk-bridge.so is loaded first, and it inits  
> > after its load.
> > When atk-bridge inits, it calls atk_get_root,  
> > add_global_event_listener, etc.
> >
> > When mozilla accessibility module loads, it assigns its  
> > implementation to atk_class interfaces in mai_util_class_init,  
> > including atk_get_root, add_global_event_listener, etc.
> > Then mozilla tries to load atk-bridge.so, and inits it.
> > Generally it will init and call mai implementation of  
> > atk_get_root, add_global_event_listener, etc.
> >
> > But since atk-bridge is already initialized, it will just return  
> > and do nothing.
> >
> > I don't know if it is possible to shutdown atk-bridge and re-init it.
> > Could it solve the dialog problem?
> >
> > Thanks,
> >
> > Ginn
> >
> > > Regards,
> > >
> > > Peter Korn
> > > Accessibility Architect,
> > > Sun Microsystems, Inc.
> > > > Begin forwarded message:
> > > >
> > > > > *From: *bugzilla-daemon mozilla org <mailto:bugzilla- 
> > > > > daemon mozilla org>
> > > > > *Date: *April 13, 2006 4:46:48 PM CST
> > > > > *To: *browser-china-atf sun com <mailto:browser-china-atf sun com>
> > > > > *Subject: **[Bug 332660] GTK file picker as used in Firefox is  
> > > > > not accessibile for GOK (Mozilla strips atk-bridge from  
> > > > > GTK_MODULES)*
> > > > >
> > > > > Do not reply to this email.  You can add comments to this bug at
> > > > > https://bugzilla.mozilla.org/show_bug.cgi?id=332660
> > > > >
> > > > >
> > > > >
> > > > >
> > > > >
> > > > > ------- Comment #7 from ginn chen sun com  
> > > > > <mailto:ginn chen sun com>  2006-04-13 01:46 PDT -------
> > > > > I need help on this bug.
> > > > >
> > > > > I tried to use gtk_widget_get_accessible to get AtkObject* of  
> > > > > the file-picker
> > > > > dialog.
> > > > > But it doesn't work. The Role is INVALID.
> > > > > If mozilla doesn't unset GTK_MODULES, the role of file-picker  
> > > > > accessible is
> > > > > DIALOG.
> > > > >
> > > > > How can I get valid AtkObject* of file-picker without setting  
> > > > > GTK_MODULES?
> > > > > (If GTK_MODULES sets, mozilla a11y interface can not  
> > > > > initialized correctly.)
> > > > >
> > > > > Any ideas?
> > > > >
> > > > > Thanks!
> > > > >
> > > > >
> > > > >
> > > > > --Configure bugmail: https://bugzilla.mozilla.org/userprefs.cgi? 
> > > > > tab=email
> > > >
> > > > --------
> > > > Ginn Chen
> > > > Software Engineer, Browser Team
> > > > Sun Microsystems, Inc.
> > > > Phone: +86-10-82618200 (x82869)
> > > > Fax:   +86-10-62780969
> > > >
> > > >
> > > >
> > > > ------------------------------------------------------------------- 
> > > > -----
> > > >
> > > > _______________________________________________
> > > > gnome-accessibility-list mailing list
> > > > gnome-accessibility-list gnome org
> > > > http://mail.gnome.org/mailman/listinfo/gnome-accessibility-list
> >
> > --------
> > Ginn Chen
> > Software Engineer, Browser Team
> > Sun Microsystems, Inc.
> > Phone: +86-10-82618200 (x82869)
> > Fax:   +86-10-62780969
> >
> >
> >
> > _______________________________________________
> > gnome-accessibility-list mailing list
> > gnome-accessibility-list gnome org
> > http://mail.gnome.org/mailman/listinfo/gnome-accessibility-list

--------
Ginn Chen
Software Engineer, Browser Team
Sun Microsystems, Inc.
Phone: +86-10-82618200 (x82869)
Fax:   +86-10-62780969