org.freedesktop.PowerManagement

[Lubos Lunak]

On Sunday 01 of April 2007, Dan Winship wrote:
> It doesn't have to be a future version (or at least, not any farther
> into the future than the version of g-p-m that supports o.f.PM).
> Shutdown(), Reboot() and Logout() are just alternate ways of invoking
> existing functionality, so they'd be one-liners. And the code to
> implement Inhibit is pretty much the same whether you put it in g-p-m or
> gnome-session. So really, the hardest part of implementing the interface
> in gnome-session right away would be the dbus glue. Which isn't that big
> a difficulty.

 As you point yourself below, just plain Shutdown(), Reboot(), Logout() calls 
are not the right interface (that's Shutdown(void) etc. for you C folks), so 
at least some thinking needs to go even to designed such simple interface.

> (And ksmserver in KDE4 already has a D-Bus method for shutdown, reboot,
> and logout, so it would be even less work for them.)

 Not precisely, there's only logout( int, int, int ) and one has to look in 
the sources to find out how those arguments control the logout (whether to 
shutdown/reboot etc.).

> > Would this work for everyone? Personally I think this is a lot nicer.
>
> Yes, pretty much. We need to move CanShutdown and CanReboot to o.f.SM
> too, so that callers know whether or not to offer those options to the
> user. (The CanShutdownChanged and CanRebootChanged signals seem like
> overkill...)
>
> Also, does Logout() mean "ask if the user wants to log out" or just "log
> out!" IOW, who does the confirmation dialogs, the caller or the session
> manager? Or should there be a "bool ask_for_confirmation" flag? And
> should there be a generic "pop up a dialog to let the user pick whether
> to log out, reboot, or shut down" method? (GNOME has moved towards
> having the callers do the dialogs themselves in recent releases, but the
> session manager needs to have its own dialogs anyway to properly deal
> with logout requests from XSMP clients, so it seems to me like it would
> make more sense to move gnome-panel's logout/reboot/shutdown dialogs
> into gnome-session.)

-- 
Lubos Lunak
KDE developer
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