#!/bin/sh

# /etc/acpi/powerbtn.sh

# Taken from Debian's 2.0.4-1 diff file.  This version handles KDE4.

# Power Button event handler.

# Checks to see if gnome or KDE are already handling the power button.

# If not, initiates a plain shutdown.

# getXuser gets the X user belonging to the display in $displaynum.

# If you want the foreground X user, use getXconsole!

# Input:

#   displaynum - X display number

# Output: 

#   XUSER - the name of the user

#   XAUTHORITY - full pathname of the user's .Xauthority file

getXuser() {

        user=`pinky -fw | awk '{ if ($2 == ":'$displaynum'" || $(NF) == ":'$displaynum'" ) { print $1; exit; } }'`

        if [ x"$user" = x"" ]; then

                startx=`pgrep -n startx`

                if [ x"$startx" != x"" ]; then

                        user=`ps -o user --no-headers $startx`

                fi

        fi

        if [ x"$user" != x"" ]; then

                userhome=`getent passwd $user | cut -d: -f6`

                export XAUTHORITY=$userhome/.Xauthority

        else

                export XAUTHORITY=""

        fi

        export XUSER=$user

}

# Gets the X display number for the active virtual terminal.

# Output:

#   DISPLAY - the X display number

#   See getXuser()'s output.

getXconsole() {

        console=`fgconsole`;

        displaynum=`ps t tty$console | sed -n -re 's,.*/X .*:([0-9]+).*,\1,p'`

        if [ x"$displaynum" != x"" ]; then

                export DISPLAY=":$displaynum"

                getXuser

        fi

}

# Skip if we are just in the middle of resuming.

test -f /var/lock/acpisleep && exit 0

# If the current X console user is running a power management daemon that

# handles suspend/resume requests, let them handle policy.

getXconsole

# A list of power management system process names.

PMS="gnome-power-manager kpowersave xfce4-power-manager"

PMS="$PMS guidance-power-manager.py dalston-power-applet"

PMS="$PMS mate-power-manager org_kde_powerdevil"

# If one of those is running or any of several others,

if pidof x $PMS > /dev/null ||

	( test "$XUSER" != "" && pidof dcopserver > /dev/null && test -x /usr/bin/dcop && /usr/bin/dcop --user $XUSER kded kded loadedModules | grep -q klaptopdaemon) ||

	( test "$XUSER" != "" && test -x /usr/bin/qdbus && test -r /proc/$(pgrep -n kded4)/environ && su - $XUSER -c "eval $(echo -n 'export '; cat /proc/$(pgrep -n kded4)/environ |tr '\0' '\n'|grep DBUS_SESSION_BUS_ADDRESS); qdbus org.kde.kded" | grep -q powerdevil) ; then

	# Get out as the power manager that is running will take care of things.

    exit

fi

# No power managment system appears to be running.  Just initiate a plain 

# shutdown.

CURRENT_INIT=`ps -p 1 -o comm=`

if [ "$CURRENT_INIT" = "openrc-init" ]

then

	/sbin/openrc-shutdown -p

else

	/sbin/shutdown -h now "Power button pressed"

fi