[D-BUS Service]
# Plasma's session screen, made unstartable.
#
# The third and last layer over Ctrl+Alt+Delete, and the one that does not
# depend on knowing which key is bound to what.
#
# Ctrl+Alt+Delete does not draw anything itself. It asks D-Bus for
# org.kde.LogoutPrompt, and D-Bus starts ksmserver-logout-greeter, which
# is the screen with Log Out, Restart, Shut Down, Sleep and Hibernate on
# it. Unbinding the chord in kglobalshortcutsrc takes away the caller;
# this takes away the callee, so any other caller — a Plasma release that
# binds the prompt to something new, an applet that ends up on the panel
# by accident, a script — finds nothing to start either.
#
# The same shadowing mechanism the classroom already uses for the old
# notification daemon: the session bus searches XDG_DATA_DIRS in order and
# /usr/local/share comes before /usr/share, so no file belonging to
# plasma-workspace is touched and Plasma can be upgraded underneath this
# without anything here changing.
#
# What this does NOT do: end a session. Logging out, restarting and
# shutting down are all still there for anyone with an account on the
# machine, through systemctl and loginctl, which is how a technician does
# it already. The greeter is a teacher-facing screen in a room that has no
# other teacher-facing way to do any of it, and that is the only thing
# taken away.
Name=org.kde.LogoutPrompt
Exec=/bin/false