On 06/20/2011 07:30 AM, Kok, Auke-jan H wrote:
What changed exactly? Well, the biggest change is that there is no
hardcoded session table anymore, and so now each session needs to be
defined in a session definition file instead. That means that instead
of telling uxlaunch "start /usr/bin/mutter --sm-disable", you'll now
tell it to 'start the x-meego-nb' session, and something will instruct
uxlaunch that that implies 'mutter' etc.
Sounds good.
Also, the new code allows the USER to entirely override this and
create their own session definition, and completely different than
what the main system defines as default. Yes, that's right, you can
change your own desktop without root permissions.
Will the user who's home is read be still determined by entry in
/etc/sysconfig/uxlaunch?
This is done through generic xsession desktop files. A lot of DE's
already ship them (xfce, xbmc, even gnome) and so we're reusing this
mechanism for maximum flexibility. Session files are named
'foo.desktop' and list an Exec= key that will be started as the
session process. The 'foo' part is assumed to define the 'session
name'. This allows uxlaunch to hide applications through the
OnlyShowIn and NotShowIn fields as it did before.
Currently uxlaunch has the xopts in the /etc/sysconfig/uxlaunch, could
this be moved to the UX .desktop file as well or even better could we
provide Xorg parameters as dynamic files in some directory as on touch
devices you don't want to see mouse cursor and netbooks you want,
something that is also more hardware thing. So information that hardware
adaptation pattern/package group might contain.
Currently there is following hack in .ks files
https://meego.gitorious.org/meego-os-base/image-configurations/blobs/master/custom/scripts/uxlaunch-nocursor.post
The impact for most people will be nil, except two groups:
Release engineering& people who make images: You'll have to rewrite
the kickstart files and uxlaunch configs.
- The appropriate UX package needs to install a
"/usr/share/xsessions/sessionname.desktop" file
The "sessionname" should be consistent with MeeGo's naming
convention: acceptable are "x-meego-nb", "x-meego-hs", "x-meego-tb",
"x-meego-tv", "x-meego-ivi", others need to be discussed first as
there is an impact on all packages if you make something up, and your
UX might not work properly. (autostart files will be filtered
case-insensitive).
This is probably something that the UX specific pattern/package group
should provide.
- Selecting a default session is done through symlinking in the
kickstart file: The %post section needs to execute a line like this:
ln -sf x-meego-nb.desktop /usr/share/applications/default.desktop
This symlink *must never* be part of an installed package.
Maybe a patch for mic2? Currently there are following lines in .ks file
that do some magics in this area:
xconfig --startxonboot
desktop --autologinuser=meego --defaultdesktop=DUI
--session="/usr/bin/mcompositor"
Regards,
Marko
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