nixos/home/desktop/scripts/powermenu

#!/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]="xfce4-screensaver-command --lock"
[ 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