Re: Orca [Kde-accessibility] /KDE Integration
- From: Olaf Jan Schmidt <ojschmidt kde org>
- To: kde-accessibility kde org
- Cc: accessibility-atspi freestandards org, orca-list gnome org, Bill Haneman <Bill Haneman sun com>, accessibility freestandards org, Harald Fernengel <harald trolltech com>
- Subject: Re: Orca [Kde-accessibility] /KDE Integration
- Date: Wed, 30 Aug 2006 17:50:25 +0200
[ Bill Haneman ]
Like you, I worry about the performance. It seems to me like a lot of
work just to avoid using ORBit2 in the short term...
Short term?
Sorry to disappoint you, but KDE 4 will still take some time. We can only make
medium to long term plans at the moment.
KDE development is currently in an extensive API review phase, where all code
in the libraries is evaluated for possible changes. Once this review is
complete, we will have to stick with the API for a really long time.
Our short term goal is to educate the other KDE developers about what is
needed in the applications and libraries to properly support AT-SPI. We can
do this best if we can sell them a nice API that is expected to be around
long term.
I agree with you that using atk plus the existing AT-SPI implementation (with
gconf, bonobo etc) would have been a nice short term strategy to integrate
KDE applications into the GNOME desktop accessibility-wise, but Qt3+KDE3 have
too many limitations to do this and KDE4 is just not ready yet.
If we attempt to apply this short term strategy to our medium term plan of
making the KDE4 desktop itself accessible, then it quickly becomes obvious
that we need a different plan for this.
Neither you nor me would like to tell the KDE developers: "To make KDE4
accessible, the desktop will need to use CORBA+Bonobo. We will also have to
restrict key parts of KDE Accessibility to those platforms where a suitable
C++ ORB is available, at least until we have a consensus between all players
to migrate to D-Bus. Both the desktop and all applications will need to read
gconf keys and GNOME specific environment variables. There might be more,
since we do not have a complete dependencies list of the current AT-SPI code
available. A D-Bus migration might be a possible alternative, but the GNOME
team discourages work on this (at least short term), citing interoperability
concerns and likely performance problems. We also discussed removing some of
the other dependencies, but it would not benefit the user to destabilise
AT-SPI at the current point of time."
My hope is that we can decide on the long term plan for AT-SPI soon, so that
we are able to define the KDE4 APIs accordingly. It shouldn't be too
difficult to agree on a version of AT-SPI that fits the needs of both KDE and
GNOME if we make this a joint effort.
Olaf
--
Olaf Jan Schmidt, KDE Accessibility co-maintainer, open standards
accessibility networker, Protestant theology student and webmaster of
http://accessibility.kde.org/ and http://www.amen-online.de/
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