panel-bspwm

#! /bin/sh
# based on default example from bspwm github

PANEL_FIFO=/tmp/panel-fifo
PANEL_HEIGHT=24
PANEL_FONT_0="-lucy-tewi-medium-r-normal-*-11-90-100-100-c-60-iso10646-1"
PANEL_FONT_1="-wuncon-siji-medium-r-normal-*-10-100-75-75-c-80-iso10646-1"
PANEL_WM_NAME=bspwm_panel

COLOR_DEFAULT_FG="#474c57"
COLOR_DEFAULT_BG="#ffffff"
COLOR_MONITOR_FG="#474c57"
COLOR_MONITOR_BG="#ffffff"
COLOR_FOCUSED_MONITOR_FG="#474c57"
COLOR_FOCUSED_MONITOR_BG="#f6bfc5"
COLOR_FREE_FG="#dde1e8"
COLOR_FREE_BG="#ffffff"
COLOR_FOCUSED_FREE_FG="#474c57"
COLOR_FOCUSED_FREE_BG="#ef6b7b"
COLOR_OCCUPIED_FG="#474c57"
COLOR_OCCUPIED_BG="#ffffff"
COLOR_FOCUSED_OCCUPIED_FG="#474c57"
COLOR_FOCUSED_OCCUPIED_BG="#ef6b7b"
COLOR_URGENT_FG="#b48ead"
COLOR_URGENT_BG="#ffffff"
COLOR_FOCUSED_URGENT_FG="#b48ead"
COLOR_FOCUSED_URGENT_BG="#504e4e"
COLOR_STATE_FG="#ffffff"
COLOR_STATE_BG="#ffffff"
COLOR_SYS_FG="#474c57"
COLOR_SYS_BG="#ffffff"
COLOR_SYS_AC="#ef6b7b"

trap 'trap - TERM; kill 0' INT TERM QUIT EXIT

[ -e "$PANEL_FIFO" ] && rm "$PANEL_FIFO"
mkfifo "$PANEL_FIFO"

## format an icon
icon() {
    case $2 in
        0) printf "%s" "%{F$COLOR_SYS_AC}${1}%{F-}";;
        1) printf "%s" "%{F$COLOR_SYS_FG}${1}%{F-}";;
    esac
}

clock() {
    while true; do
        date +"S$(icon  0) %H:%M"
        sleep 15
    done
}

music() {
    while true; do
        status=$(mpc status | sed -n '2p')
        case "$status" in
        \[play*)    echo 'M' "$(icon  0) $(mpc current)";;
        \[paused*)  echo 'M' "$(icon  0) $(mpc current)";;
        *)          echo 'M' "$(icon  0) Stopped";;
        esac
        sleep 4;
    done
}

wifi() {
    while true; do
        network_id=$(/sbin/iwgetid -r)
        if [ -n "$network_id" ]
        then
        echo 'N' "$(icon  0) "$network_id"";
        else
        echo 'N' "$(icon  0) offline";
        fi
        sleep 15;
    done
}

battery() {
    while true; do
        battery_status=$(cat /sys/class/power_supply/BAT1/status)
        battery_percent=$(cat /sys/class/power_supply/BAT1/capacity)
        case "$battery_status" in
            Charging) echo 'B' "$(icon  0) ${battery_percent}";;
            Discharging)
            if [ "$battery_percent" -gt 80 ]
            then
            echo 'B' "$(icon  0) ${battery_percent}"
            elif [ "$battery_percent" -gt 30 ]
            then
            echo 'B' "$(icon  0) ${battery_percent}"
            else
            echo 'B' "$(icon  0) ${battery_percent}"
            fi
            ;;
        Unknown|Full) echo 'B' "$(icon  0) 100%";;
    esac
    sleep 30;
    done
}

clock > "$PANEL_FIFO" &
music > "$PANEL_FIFO" &
wifi > "$PANEL_FIFO" &
battery > "$PANEL_FIFO" &
bspc subscribe report > "$PANEL_FIFO" &

num_mon=$(bspc query -M | wc -l)

panel_bar() {
while read -r line ; do
    case $line in
        B*)
            # bat
            bat="%{F$COLOR_SYS_FG}%{B$COLOR_SYS_BG} ${line#?} %{B-}%{F-}";;
        N*)
            # net
            net="%{F$COLOR_SYS_FG}%{B$COLOR_SYS_BG} ${line#?} %{B-}%{F-}";;
        S*)
            # clock output
            sys="%{F$COLOR_SYS_FG}%{B$COLOR_SYS_BG} ${line#?} %{B-}%{F-}"
            ;;
        M*)
            # music output
            mus="%{F$COLOR_SYS_FG}%{B$COLOR_SYS_BG} ${line#?} %{B-}%{F-}"
            ;;
        W*)
            # bspwm's state
            wm=
            IFS=':'
            set -- ${line#?}
            while [ $# -gt 0 ] ; do
                item=$1
                name=${item#?}
                case $item in
                    [mM]*)
                        case $item in
                            m*)
                                # monitor
                                FG=$COLOR_MONITOR_FG
                                BG=$COLOR_MONITOR_BG
                                on_focused_monitor=
                                ;;
                            M*)
                                # focused monitor
                                FG=$COLOR_FOCUSED_MONITOR_FG
                                BG=$COLOR_FOCUSED_MONITOR_BG
                                on_focused_monitor=1
                                ;;
                        esac
                        [ $num_mon -lt 2 ] && shift && continue
                        wm="${wm}%{F${FG}}%{B${BG}}%{A:bspc monitor -f ${name}:} ${name} %{A}%{B-}%{F-}"
                        ;;
                    [fFoOuU]*)
                        case $item in
                            f*)
                                # free desktop
                                FG=$COLOR_FREE_FG
                                BG=$COLOR_FREE_BG
                                UL=$BG
                                ;;
                            F*)
                                if [ "$on_focused_monitor" ] ; then
                                    # focused free desktop
                                    FG=$COLOR_FOCUSED_FREE_FG
                                    BG=$COLOR_FOCUSED_FREE_BG
                                    UL=$BG
                                else
                                    # active free desktop
                                    FG=$COLOR_FREE_FG
                                    BG=$COLOR_FREE_BG
                                    UL=$COLOR_FOCUSED_FREE_BG
                                fi
                                ;;
                            o*)
                                # occupied desktop
                                FG=$COLOR_OCCUPIED_FG
                                BG=$COLOR_OCCUPIED_BG
                                UL=$BG
                                ;;
                            O*)
                                if [ "$on_focused_monitor" ] ; then
                                    # focused occupied desktop
                                    FG=$COLOR_FOCUSED_OCCUPIED_FG
                                    BG=$COLOR_FOCUSED_OCCUPIED_BG
                                    UL=$BG
                                else
                                    # active occupied desktop
                                    FG=$COLOR_OCCUPIED_FG
                                    BG=$COLOR_OCCUPIED_BG
                                    UL=$COLOR_FOCUSED_OCCUPIED_BG
                                fi
                                ;;
                            u*)
                                # urgent desktop
                                FG=$COLOR_URGENT_FG
                                BG=$COLOR_URGENT_BG
                                UL=$BG
                                ;;
                            U*)
                                if [ "$on_focused_monitor" ] ; then
                                    # focused urgent desktop
                                    FG=$COLOR_FOCUSED_URGENT_FG
                                    BG=$COLOR_FOCUSED_URGENT_BG
                                    UL=$BG
                                else
                                    # active urgent desktop
                                    FG=$COLOR_URGENT_FG
                                    BG=$COLOR_URGENT_BG
                                    UL=$COLOR_FOCUSED_URGENT_BG
                                fi
                                ;;
                        esac
                        wm="${wm}%{F${FG}}%{B${BG}}%{U${UL}}%{+u}%{A:bspc desktop -f ${name}:} ${name} %{A}%{B-}%{F-}%{-u}"
                        ;;
                    [LTG]*)
                        # layout, state and flags
                        wm="${wm}%{F$COLOR_STATE_FG}%{B$COLOR_STATE_BG} ${name} %{B-}%{F-}"
                        ;;
                esac
                shift
            done
            ;;
    esac
    printf "%s\n" "%{l}${wm}%{c}${mus}%{r}${net}${bat}${sys}"
done
}

panel_bar < "$PANEL_FIFO" | lemonbar -a 32 -u 2 -n "$PANEL_WM_NAME" -g 1066x$PANEL_HEIGHT+150+8 -f "$PANEL_FONT_0" -f "$PANEL_FONT_1" -F "$COLOR_DEFAULT_FG" -B "$COLOR_DEFAULT_BG" | sh &

wid=$(xdo id -a "$PANEL_WM_NAME")
xdo above -t "$(xdo id -N Bspwm -n root | sort | head -n 1)" "$wid"

wait