#!/sbin/openrc-run
# Copyright 1999-2014 Gentoo Foundation
# Distributed under the terms of the GNU General Public License, v2

# This is here to serve as a note to myself, and future developers.
#
# Any Display manager (gdm,kdm,xdm) has the following problem:  if
# it is started before any getty, and no vt is specified, it will
# usually run on vt2.  When the getty on vt2 then starts, and the
# DM is already started, the getty will take control of the keyboard,
# leaving us with a "dead" keyboard.
#
# Resolution: add the following line to /etc/inittab
#
#  x:a:once:/etc/X11/startDM.sh
#
# and have /etc/X11/startDM.sh start the DM in daemon mode if
# a lock is present (with the info of what DM should be started),
# else just fall through.
#
# How this basically works, is the "a" runlevel is a additional
# runlevel that you can use to fork processes with init, but the
# runlevel never gets changed to this runlevel.  Along with the "a"
# runlevel, the "once" key word means that startDM.sh will only be
# run when we specify it to run, thus eliminating respawning
# startDM.sh when "xdm" is not added to the default runlevel, as was
# done previously.
#
# This script then just calls "telinit a", and init will run
# /etc/X11/startDM.sh after the current runlevel completes (this
# script should only be added to the actual runlevel the user is
# using).
#
# Martin Schlemmer
# aka Azarah
# 04 March 2002

supervisor=supervise-daemon
respawn_period="${respawn_period:-60}"
command=/usr/sbin/sddm

depend() {
	need localmount xdm-setup

	# this should start as early as possible
	# we can't do 'before *' as that breaks it
	# (#139824) Start after ypbind and autofs for network authentication
	# (#145219 #180163) Could use lirc mouse as input device
	# (#70689 comment #92) Start after consolefont to avoid display corruption
	# (#291269) Start after quota, since some dm need readable home
	# (#390609) gdm-3 will fail when dbus is not running
	# (#366753) starting keymaps after X causes problems
	after bootmisc consolefont modules netmount
	after readahead-list ypbind autofs openvpn gpm lircmd
	after quota keymaps
	before alsasound

	# Start before X
	use consolekit dbus xfs
}

# Check to see if something is defined on our VT
vtstatic() {
	if [ -e /etc/inittab ] ; then
		grep -Eq "^[^#]+.*\<tty$1\>" /etc/inittab
	elif [ -e /etc/ttys ] ; then
		grep -q "^ttyv$(($1 - 1))" /etc/ttys
	else
		return 1
	fi
}

start_pre() {
	if [ -f /etc/.noxdm ]; then
		einfo "Skipping ${EXE##*/}, /etc/.noxdm found or \"nox\" bootparam passed."
		rm /etc/.noxdm
		return 0
	fi

	if [ -n "${CHECKVT-y}" ] ; then
		if vtstatic "${CHECKVT:-7}" ; then
			if [ -x /sbin/telinit ] && [ "${SOFTLEVEL}" != "BOOT" ] && [ "${RC_SOFTLEVEL}" != "BOOT" ]; then
				ewarn "Something is already defined on VT ${CHECKVT:-7}, will start X later"
				telinit a >/dev/null 2>&1
				return 0
			else
				eerror "Something is already defined on VT ${CHECKVT:-7}, not starting"
				return 1
			fi
		fi
	fi
}

stop_pre() {
	local curvt

	retval=0
	if [ -t 0 ]; then
		if type fgconsole >/dev/null 2>&1; then
			curvt=$(fgconsole 2>/dev/null)
		else
			curvt=$(tty)
			case "${curvt}" in
				/dev/ttyv[0-9]*) curvt=${curvt#/dev/ttyv} ;;
				*) curvt= ;;
			esac
		fi
	fi

	# switch back to original vt
	if [ -n "${curvt}" ]; then
		if type chvt >/dev/null 2>&1; then
			chvt "${curvt}"
		else
			vidcontrol -s "$((curvt + 1))"
		fi
	fi
}

# vim: set ts=4 :
