nixos/scripts/powermenu

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#!/usr/bin/env bash
#
# Use rofi/zenity to change system runstate thanks to systemd.
#
# Note: this currently relies on associative array support in the shell.
#
# Inspired from i3pystatus wiki:
# https://github.com/enkore/i3pystatus/wiki/Shutdown-Menu
#
# Copyright 2015 Benjamin Chrétien <chretien at lirmm dot fr>
#
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty 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/>.
# modified to work with latest rofi update by joekamprad <joekamprad@endeavouros.com>
#######################################################################
# BEGIN CONFIG #
#######################################################################
# Use a custom lock script
#LOCKSCRIPT="i3lock-extra -m pixelize"
# Colors: FG (foreground), BG (background), HL (highlighted)
FG_COLOR="#bbbbbb"
BG_COLOR="#111111"
HLFG_COLOR="#111111"
HLBG_COLOR="#bbbbbb"
BORDER_COLOR="#222222"
# Options not related to colors (most rofi options do not work anymore)
ROFI_OPTIONS=(-theme ~/.dotfiles/rofi/powermenu.rasi)
# Zenity options
ZENITY_TITLE="Power Menu"
ZENITY_TEXT="Action:"
ZENITY_OPTIONS=(--column= --hide-header)
#######################################################################
# END CONFIG #
#######################################################################
# Whether to ask for user's confirmation
enable_confirmation=false
# Preferred launcher if both are available
preferred_launcher="rofi"
usage="$(basename "$0") [-h] [-c] [-p name] -- display a menu for shutdown, reboot, lock etc.
where:
-h show this help text
-c ask for user confirmation
-p preferred launcher (rofi or zenity)
This script depends on:
- systemd,
- rofi or zenity."
# Check whether the user-defined launcher is valid
launcher_list=(rofi zenity)
function check_launcher() {
if [[ ! "${launcher_list[@]}" =~ (^|[[:space:]])"$1"($|[[:space:]]) ]]; then
echo "Supported launchers: ${launcher_list[*]}"
exit 1
else
# Get array with unique elements and preferred launcher first
# Note: uniq expects a sorted list, so we cannot use it
i=1
launcher_list=($(for l in "$1" "${launcher_list[@]}"; do printf "%i %s\n" "$i" "$l"; let i+=1; done \
| sort -uk2 | sort -nk1 | cut -d' ' -f2- | tr '\n' ' '))
fi
}
# Parse CLI arguments
while getopts "hcp:" option; do
case "${option}" in
h) echo "${usage}"
exit 0
;;
c) enable_confirmation=true
;;
p) preferred_launcher="${OPTARG}"
check_launcher "${preferred_launcher}"
;;
*) exit 1
;;
esac
done
# Check whether a command exists
function command_exists() {
command -v "$1" &> /dev/null 2>&1
}
# systemctl required
if ! command_exists systemctl ; then
exit 1
fi
# menu defined as an associative array
typeset -A menu
# Menu with keys/commands
menu=(
[ Shutdown]="systemctl poweroff"
[ Reboot]="systemctl reboot"
[ Suspend]="systemctl suspend"
[ Hibernate]="systemctl hibernate"
[ Lock]="xflock4"
[ Logout]="xfce4-session-logout"
[ Cancel]=""
)
menu_nrows=${#menu[@]}
# Menu entries that may trigger a confirmation message
menu_confirm="Shutdown Reboot Hibernate Suspend Halt Logout"
launcher_exe=""
launcher_options=""
rofi_colors=""
function prepare_launcher() {
if [[ "$1" == "rofi" ]]; then
rofi_colors=(-bc "${BORDER_COLOR}" -bg "${BG_COLOR}" -fg "${FG_COLOR}" \
-hlfg "${HLFG_COLOR}" -hlbg "${HLBG_COLOR}")
launcher_exe="rofi"
launcher_options=(-dmenu -i -lines "${menu_nrows}" -p "${ROFI_TEXT}" \
"${rofi_colors}" "${ROFI_OPTIONS[@]}")
elif [[ "$1" == "zenity" ]]; then
launcher_exe="zenity"
launcher_options=(--list --title="${ZENITY_TITLE}" --text="${ZENITY_TEXT}" \
"${ZENITY_OPTIONS[@]}")
fi
}
for l in "${launcher_list[@]}"; do
if command_exists "${l}" ; then
prepare_launcher "${l}"
break
fi
done
# No launcher available
if [[ -z "${launcher_exe}" ]]; then
exit 1
fi
launcher=(${launcher_exe} "${launcher_options[@]}")
selection="$(printf '%s\n' "${!menu[@]}" | sort | "${launcher[@]}")"
function ask_confirmation() {
if [ "${launcher_exe}" == "rofi" ]; then
confirmed=$(echo -e "Yes\nNo" | rofi -dmenu -i -lines 2 -p "${selection}?" \
"${rofi_colors}" "${ROFI_OPTIONS[@]}")
[ "${confirmed}" == "Yes" ] && confirmed=0
elif [ "${launcher_exe}" == "zenity" ]; then
zenity --question --text "Are you sure you want to ${selection,,}?"
confirmed=$?
fi
if [ "${confirmed}" == 0 ]; then
"${menu[${selection}]}"
fi
}
if [[ $? -eq 0 && ! -z ${selection} ]]; then
if [[ "${enable_confirmation}" = true && \
${menu_confirm} =~ (^|[[:space:]])"${selection}"($|[[:space:]]) ]]; then
ask_confirmation
else
"${menu[${selection}]}"
fi
fi