The session manager is extremely early days and basically just boots up the shell and provides an implementation for the logout/shutdown stuff in the org.xfce.SessionManager DBus endpoint.

The aim is to eventually have the session manager behave akin to Windows - have everything set up on first run (themes etc.), play logon/logoff sounds, control the shell, that sort of thing.

Running the project under xfce4-session will always remain possible, hence implementing the XFSM APIs.

Testing

By default logonui will stick to XFCE - wintc is provided as an alternative session. To boot into it from logonui, you should edit (or create) /etc/wintc/logonui.ini with the following:

[LogonUI]
session=wintc

Of course the greeter must be restarted for this change to take effect.