Re: [orca-list] [Testers wanted before the official release] Slint64-4.2.1 release candidate is accessible.

[Peter Vágner <pvdeejay gmail com>]

Hello,

Some more experiments here.

In our xinit config we are roughly doing something like this - see some added comments to explain my thoughts:
if [ -f ~/.config/startorca ]; then
# init some ENV variables
/usr/bin/speech-dispatcher -d
/usr/bin/orca # Orca will start at-spi if it's not running which will launch dbus if it's not running.
fi
if [ -z "$DESKTOP_SESSION" -a -x /usr/bin/ck-launch-session ]; then # Here console kit would also try to run dbus however dbus is already running so I guess we might end up missing some bus addresses or something
    ck-launch-session dbus-launch --exit-with-session startlxde
else
    startlxde
fi

When orca starts up and there is no instance of at-spi and speech-dispatcher orca will try to spawn both of them.
In gnome, at-spi is started via
/etc/xdg/autostart/at-spi-dbus-bus.desktop
By looking to the at-spi2-core build configuration I can verify this is a part of at-spi2-core.
It's specific to gnome and it appears gnome is the only DE it has accessibility turned on by default.
It reads...
[Desktop Entry]
Type=Application
Name=AT-SPI D-Bus Bus
Exec=/usr/lib/at-spi2-core/at-spi-bus-launcher --launch-immediately
_OnlyShowIn_=GNOME;Unity;
NoDisplay=true
AutostartCondition=GSETTINGS org.gnome.desktop.interface toolkit-accessibility
X-GNOME-AutoRestart=true
X-GNOME-Autostart-Phase=Initialization

When converted to our setup it might look like
[Desktop Entry]
Type=Application
Name=AT-SPI D-Bus Bus
Exec=/usr/libexec/at-spi-bus-launcher --launch-immediately
NoDisplay=true
AutostartCondition=[ -f ~/.config/startorca ]


So based off of that I guess we need to seperate accessibility setup into two parts:
* Configure all the variables and settings within the xinit configuration before launching the actual session.
* Where possible configure session autostart features to start orca.

Only we need to decide if we are going to start at-spi as a part of our session startup or we can keep orca handling its launch as soon as it starts.
I originally assumed seperate at-spi startup might be usefull if we wish to have orca access to apps running as root because gnome is the only DE where I have this seen working consistently so far, however on this install of slint I can use su to gain root and then launch gparted for example and orca reads it all fine no mather how at-spi is started.

Here is orca desktop file I have put into my
~/.config/autostart
after I have commented out call to it and call to speech-dispatcher in the xinit config.

[Desktop Entry]
Type=Application
Version=1.0
Name=orca
Exec=/usr/bin/orca
AutostartCondition=[ -f ~/.config/startorca ]

With session autostart handling orca startup I do also have desktop icons and they are accessible. Sometimes after closing all the windows focus is not automagically placed to the desktop so flat review or random mouse clicks are needed but still it's a good move I feel.

Greetings

Peter

2017-10-22 15:19 GMT+02:00 Didier Spaier <didier slint fr>:

Hello,

I just made some tests and am puzzled.
1) If I have no ~/.config/startorca
- I have no sound in LXDE, of course
- I have desktop icons
- pcmanfm --desktop-pref works
2) If i have a file ~/.config/startorca
- I have sound in LXDE
- I do not have desktop icons
- pcmanfm --desktop-pref pops up an error message:
  "Desktop manager is not active"

I have been unable to understand why so far.

On another topic, I made some more tests of qtatspi and noticed that
when it is installed it seems that LXDE be less responsive, and the
windows of KDE apps need 30 seconds or so to appear. I don't know why,
maybe looking at the output when starting them from a terminal could
give a clue, unfortunately these outputs are very verbose.

Also, some apps are accessible, e.g. lokalize, others less so like kate
or kwrite.

PS: Maybe we could let users know that XFCE is more accessible, and also
Maté (Jude and Peter, could you please check that?).

I will manage to include startoca.snip in xinitrc.mate either by default
or as an automatic post-install task.

Greetings,

Didier

Le 21/10/2017 à 23:08, Peter Vágner a écrit :
>>> Some lxde pannels are accessible with the flat review. However it appears
>>> the desktop is not configured. Wouldn't it be more awesome if PCManFM
>> would
>>> be configured to provide the desktop? That way we would get inaccessible
>>> pannels but very accessible gnome 2 style desktop that would receive the
>>> focus when all apps are closed.
>>
>> I would be grateful for guidance on how to do that. I am a complete
>> beginner in the field of accessibility, with zero experience as I see.
>>
> When pcmanfm is started with a --desktop switch it should provide the
> desktop icons.
> On an installed system I can see it's specified inside the file
> ~/.config/lxsession/LXDE/autostart
> but it is not running when lxde is showing, so it needs further
> investigation.
>
>
>>> Now when starting orca after the X session launch it just says Screen
>>> reader on with nothing else. The only way on how to start working with
>> the
>>> system in this point is pressing alt+F1.
>>
>> Well, you can also press all+F2 to get a Run dialog, and also have a
>> terminal focused when going graphical. To get that just type as regular
>> user, for instance:
>> cp /usr/share/applications/lxterminal.desktop ~/.config/autostart
>>
>> Well I have tried to place modified pcmanfm.desktop into
> ~/.config/autostart and it has not been started for me. Perhaps these two
> things might contribute to each other. I will be looking again into this
> tomorrow. I just wanted you to know my progress.
>
> Greetings
>
> Peter
>