i3-config-and-scripts/acpid actions/lid.sh

#!/bin/bash

# This script invokes the screensaver when the lid is closed,
# then puts the pc to sleep.

# Copyright (C) 2017 Fabrizio Romano Genovese <egonigredo@gmail.com>

# This copyrighted material is made available to anyone wishing to use,
# modify, copy, or redistribute it subject to the terms and conditions of
# the GNU General Public License v.2, or (at your option) any later version.
#
# This program is distributed in the hope that it will be useful, but WITHOUT
# ANY WARRANTY expressed or implied, including the implied warranties of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General
# Public License for more details.

# You should have received a copy of the
# GNU General Public License along with this program; if not, 
# see <http://www.gnu.org/licenses/>

# Put this file in /etc/acpi/actions/. Do not forget to give 
# sudo chmod +x lid.sh 
# to make it executable.

# ALL THE COMMANDS IN THE SCRIPT HAVE TO BE GIVEN VIA su -c BECAUSE OF QUBESOS WEIRDNESS. 
# IN OTHER SYSTEMS EVERYTHING IS MAYBE EASIER.

# Modify the username to suit yours!

user=Nigredo
screensaver=i3-blur

# Grepping the lid status
state=`grep open /proc/acpi/button/lid/*/state`

# Checks if the scring is empty. If it is, executes the if
if [ -z $state ]; then 
	sudo -u $user -H sh -c "DISPLAY=:0 $screensaver"
	systemctl suspend
fi