GNU bug report logs - #28088
"The name org.a11y.Bus was not provided by any .service files" with multiple applications

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Message #20 received at 28088 <at> debbugs.gnu.org (full text, mbox):

From: ludo <at> gnu.org (Ludovic Courtès)
To: iyzsong <at> member.fsf.org (宋文武)
Cc: 28088 <at> debbugs.gnu.org
Subject: Re: bug#28088: "The name org.a11y.Bus was not provided by any
 .service files" with multiple applications
Date: Sun, 03 Sep 2017 21:14:42 +0200

[Message part 1 (text/plain, inline)]

Hello!

iyzsong <at> member.fsf.org (宋文武) skribis:

> ludo <at> gnu.org (Ludovic Courtès) writes:
>
>> Hi!
>>
>> iyzsong <at> member.fsf.org (宋文武) skribis:
>>
>>> GTK+ applications will provide accessibility support over this dbus
>>> service, so the AT-SPI clients (screen reader etc.) could use them.
>>>
>>> And this 'org.a11y.Bus' service can be auto activated by the dbus
>>> session daemon if the 'at-spi2-core' package is available.  If not,
>>> we'll get thoese warnning from applications.
>>
>> It does sound like our GuixSD setup fails to activate org.a11y.Bus
>> though.  Should we add a service in %desktop-services that extends
>> ‘dbus-root-service-type’ with ‘at-spi2-core’ to ensure that
>> auto-activation works?
>
> It's not a dbus system service, we can extend 'profile-service-package'
> with 'at-spi2-core' to make it available for the user's dbus session
> daemon.

Right.  In fact our ‘gnome’ package already propagates ‘at-spi2-core’
but not Orca.  Should we do this:

[Message part 2 (text/x-patch, inline)]

diff --git a/gnu/packages/gnome.scm b/gnu/packages/gnome.scm
index 43547961b..a95214317 100644
--- a/gnu/packages/gnome.scm
+++ b/gnu/packages/gnome.scm
@@ -5827,6 +5827,7 @@ associations for GNOME.")
        ("font-cantarell"            ,font-cantarell)
        ("font-dejavu"               ,font-dejavu)
        ("at-spi2-core"              ,at-spi2-core)
+       ("orca"                      ,orca)
        ("dbus"                      ,dbus)
        ("dconf"                     ,dconf)
        ("desktop-file-utils"        ,desktop-file-utils)

[Message part 3 (text/plain, inline)]

?

What about Xfce?

There’s still a problem for people not using GNOME/Xfce, but maybe we
can’t address it in the same way (and maybe Orca is not the right tool
either for those users; I see that we lack brltty for instance.)

Thanks,
Ludo’.

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