ACPI handler script

handler.sh

#!/bin/bash

VOLUME_MAX=150
VOLUME_STEP=10
BRIGHTNESS_STEP=10

# TODO: test with currently active icon theme, using the command below
# gsettings get org.gnome.desktop.interface icon-theme

ICON_VOLUME_MUTED="/usr/share/icons/Papirus/48x48/status/notification-audio-volume-muted.svg"
ICON_VOLUME_LOW="/usr/share/icons/Papirus/48x48/status/notification-audio-volume-low.svg"
ICON_VOLUME_MEDIUM="/usr/share/icons/Papirus/48x48/status/notification-audio-volume-medium.svg"
ICON_VOLUME_HIGH="/usr/share/icons/Papirus/48x48/status/notification-audio-volume-high.svg"

ICON_BRIGHTNESS_OFF="/usr/share/icons/Papirus/48x48/status/notification-display-brightness-off.svg"
ICON_BRIGHTNESS_LOW="/usr/share/icons/Papirus/48x48/status/notification-display-brightness-low.svg"
ICON_BRIGHTNESS_MEDIUM="/usr/share/icons/Papirus/48x48/status/notification-display-brightness-medium.svg"
ICON_BRIGHTNESS_HIGH="/usr/share/icons/Papirus/48x48/status/notification-display-brightness-high.svg"
ICON_BRIGHTNESS_FULL="/usr/share/icons/Papirus/48x48/status/notification-display-brightness-full.svg"

# Upload volume change audio sample

sudo -u lucas XDG_RUNTIME_DIR=/run/user/1000 pactl upload-sample /usr/share/sounds/freedesktop/stereo/audio-volume-change.oga

function get_sink {
    sudo -u lucas XDG_RUNTIME_DIR=/run/user/1000 pactl get-default-sink
}

function get_volume {
    sudo -u lucas XDG_RUNTIME_DIR=/run/user/1000 pactl get-sink-volume `get_sink` | cut -d':' -f3 | cut -d'/' -f2 | head -n1 | xargs | cut -d'%' -f1
}

function volume_is_muted {
    M="$(sudo -u lucas XDG_RUNTIME_DIR=/run/user/1000 pactl get-sink-mute "$(get_sink)" | cut -d':' -f2 | xargs)"
    [[ $M == no ]] && return
    #if [[ $M -eq 'não' ]]
    #then
        #false
        #return
    #elif [[ $M -eq 'sim' ]]
    #then
        #true
        #return
    #fi
}

function volume_mute_toggle {
    sudo -u lucas XDG_RUNTIME_DIR=/run/user/1000 pactl set-sink-mute `get_sink` toggle
}

function volume_down {
    volume_is_muted

    if [[ $? -eq 1 ]]
    then
        volume_mute_toggle
    fi

    VOLUME="$VOLUME + $VOLUME_STEP"
    sudo -u lucas XDG_RUNTIME_DIR=/run/user/1000 pactl set-sink-volume `get_sink` -$VOLUME_STEP%
    sudo -u lucas XDG_RUNTIME_DIR=/run/user/1000 pactl play-sample audio-volume-change
}

function volume_up {
    VOLUME=`get_volume`

    if [[ "$VOLUME + $VOLUME_STEP" -gt $VOLUME_MAX ]]
    then
        return
    fi

    volume_is_muted

    if [[ $? -eq 1 ]]
    then
        volume_mute_toggle
    fi

    VOLUME="$VOLUME + $VOLUME_STEP"
    sudo -u lucas XDG_RUNTIME_DIR=/run/user/1000 pactl set-sink-volume `get_sink` +$VOLUME_STEP%
    sudo -u lucas XDG_RUNTIME_DIR=/run/user/1000 pactl play-sample audio-volume-change
    #sudo -u lucas XDG_RUNTIME_DIR=/run/user/1000 canberra-gtk-play -i audio-volume-change -V="$VOLUME"
}

function brightness_down {
    sudo -u lucas XDG_RUNTIME_DIR=/run/user/1000 light -U $BRIGHTNESS_STEP
}

function brightness_up {
    sudo -u lucas XDG_RUNTIME_DIR=/run/user/1000 light -A $BRIGHTNESS_STEP
}

function notify_volume {
    VOLUME=`get_volume`

    volume_is_muted
    MUTE=$?

    if [[ $VOLUME -eq 0 ]] || [[ $MUTE -eq 1 ]]
    then
        VOLUME=0
        ICON=$ICON_VOLUME_MUTED
    elif [[ $VOLUME -le 30 ]]
    then
        ICON=$ICON_VOLUME_LOW
    elif [[ $VOLUME -le 60 ]]
    then
        ICON=$ICON_VOLUME_MEDIUM
    else
        ICON=$ICON_VOLUME_HIGH
    fi

    if [[ $VOLUME -eq 0 ]] || [[ $MUTE -eq 1 ]]
    then
        sudo -u lucas XDG_RUNTIME_DIR=/run/user/1000 dunstify -h string:x-dunst-stack-tag:volume -i $ICON ""
    else
        sudo -u lucas XDG_RUNTIME_DIR=/run/user/1000 dunstify -h string:x-dunst-stack-tag:volume -h int:value:$VOLUME -i $ICON ""
    fi
}

function notify_brightness {
    BRIGHTNESS=`light -G | cut -d'.' -f1`
    if [[ $BRIGHTNESS -eq 0 ]]
    then
        ICON=$ICON_BRIGHTNESS_OFF
    elif [[ $BRIGHTNESS -le 30 ]]
    then
        ICON=$ICON_BRIGHTNESS_LOW
    elif [[ $BRIGHTNESS -le 60 ]]
    then
        ICON=$ICON_BRIGHTNESS_MEDIUM
    elif [[ $BRIGHTNESS -lt 100 ]]
    then
        ICON=$ICON_BRIGHTNESS_HIGH
    else
        ICON=$ICON_BRIGHTNESS_FULL
    fi

    sudo -u lucas XDG_RUNTIME_DIR=/run/user/1000 dunstify -h string:x-dunst-stack-tag:display_brightness -h int:value:$BRIGHTNESS -i $ICON ""
}

case "$1" in
    button/mute)
        volume_mute_toggle
        notify_volume
        logger 'Mute'
        ;;
    button/volumedown)
        volume_down
        notify_volume
        logger 'Volume Down'
        ;;
    button/volumeup)
        volume_up
        notify_volume
        logger 'Volume Up'
        ;;
    cd/prev)
        sudo -u lucas XDG_RUNTIME_DIR=/run/user/1000 playerctl --player spotify previous
        logger 'Previous track'
        ;;
    cd/play)
        sudo -u lucas XDG_RUNTIME_DIR=/run/user/1000 playerctl --player spotify play-pause
        logger 'Play/pause track'
        ;;
    cd/next)
        sudo -u lucas XDG_RUNTIME_DIR=/run/user/1000 playerctl --player spotify next
        logger 'Next track'
        ;;
    video/brightnessdown)
        case "$2" in
            BRTDN)
                brightness_down
                notify_brightness
                logger 'Brightness down'
                ;;
        esac
        ;;
    video/brightnessup)
        case "$2" in
            BRTUP)
                brightness_up
                notify_brightness
                logger 'Brightness up'
                ;;
        esac
        ;;
    button/power)
        case "$2" in
            PBTN|PWRF)
                logger 'PowerButton pressed'
                ;;
            *)
                logger "ACPI action undefined: $2"
                ;;
        esac
        ;;
    button/sleep)
        case "$2" in
            SLPB|SBTN)
                logger 'SleepButton pressed'
                ;;
            *)
                logger "ACPI action undefined: $2"
                ;;
        esac
        ;;
    ac_adapter)
        case "$2" in
            AC|ACAD|ADP0)
                case "$4" in
                    00000000)
                        logger 'AC unpluged'
                        ;;
                    00000001)
                        logger 'AC pluged'
                        ;;
                esac
                ;;
            *)
                logger "ACPI action undefined: $2"
                ;;
        esac
        ;;
    battery)
        case "$2" in
            BAT0)
                case "$4" in
                    00000000)
                        logger 'Battery online'
                        ;;
                    00000001)
                        logger 'Battery offline'
                        ;;
                esac
                ;;
            CPU0)
                ;;
            *)  logger "ACPI action undefined: $2" ;;
        esac
        ;;
    button/lid)
        case "$3" in
            close)
                logger 'LID closed'
                ;;
            open)
                logger 'LID opened'
                ;;
            *)
                logger "ACPI action undefined: $3"
                ;;
    esac
    ;;
    *)
        logger "ACPI group/action undefined: $1 / $2"
        ;;
esac

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