ansible-role-screensaver/templates/screensaver-lock/mate-screensaver.sh.j2

#!/bin/bash

# Example locker script -- demonstrates how to use the --transfer-sleep-lock
# option with a fixed delay to give simple lockers a little bit of time to lock
# the screen before the system goes the sleep.

## CONFIGURATION ##############################################################

# Command to start the locker (should not fork)
locker="mate-screensaver-command -l"

# Delay in seconds. Note that by default systemd-logind allows a maximum sleep
# delay of 5 seconds.
sleep_delay=1

# Run before starting the locker
pre_lock() {
    #mpc pause
    return
}

# Run after the locker exits
post_lock() {
    return
}

###############################################################################

pre_lock

# kill locker if we get killed
trap 'kill %%' TERM INT

if [[ -e /dev/fd/${XSS_SLEEP_LOCK_FD:--1} ]]; then
    # lock fd is open, make sure the locker does not inherit a copy
    $locker {XSS_SLEEP_LOCK_FD}<&- &

    sleep $sleep_delay

    # now close our fd (only remaining copy) to indicate we're ready to sleep
    exec {XSS_SLEEP_LOCK_FD}<&-
else
    $locker &
fi

wait # for locker to exit

post_lock