listen for system lock and disable asus screenpad

screenpad-lock-toggle.sh

#!/bin/bash

gdbus monitor -y -d org.freedesktop.login1 |\
grep --line-buffered -i "LockedHint" |\
sed -uE 's/.*LockedHint.*<(.*)>.*/\1/g' |\
while read IS_LOCKED; do
  LOCK_STAT=`echo $MSG | awk '{print $NF}'`
  if [[ "$IS_LOCKED" == "true" ]]; then
    echo 0 | tee '/sys/class/leds/asus::screenpad/brightness'
  else
    echo 250 | tee '/sys/class/leds/asus::screenpad/brightness'
  fi
done