gnome-session moved away from using properties over DBus in 2008, which
means that the code in GNOME 3.0 never should have worked -- but it did,
which makes me suspect that it was a quirk of the GJS DBus implementation.
Switch over to the proper inhibitor API, which is based on methods. If
gnome-session eventually gets ported to GDBus, then we can switch back
to properties.
https://bugzilla.gnome.org/show_bug.cgi?id=672270
Port org.gnome.ScreenSaver and org.gnome.SessionManager glue code
to use GDBus, and move /org/gnome/Shell/EndSessionDialog to the
GDBus connection, so it is backed by the org.gnome.Shell name.
https://bugzilla.gnome.org/show_bug.cgi?id=648651
js2-mode is no longer developed and we recommend js-mode these days,
so switch the modelines to specify that, and make them consistent
across all files.
https://bugzilla.gnome.org/show_bug.cgi?id=660358
Due to lockdown settings or Polkit policy, shutdown may not be
available. If this is the case, the "Power off ..." action should
be hidden from the user status menu.
https://bugzilla.gnome.org/show_bug.cgi?id=652038
Around 2.91.90, gnome-session-save was renamed to gnome-session-quit.
This commit restores compatibility with the older gnome-session, for
those testing under GNOME 2.32 or below, by calling the DBus methods
directly.
https://bugzilla.gnome.org/show_bug.cgi?id=644591
The DBus JS binding will complain if the signature of a method
or of a signal is undefined, so we need to define it even if it
is an empty string, and we need to use the correct property name
for signals.
https://bugzilla.gnome.org/show_bug.cgi?id=643374
