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Module: Custom: Simple

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Martijn Courteaux edited this page Oct 28, 2024 · 10 revisions

This page contains brief examples, with code provided here directly, of custom modules:

dunst:

~/.config/waybar/config

"custom/dunst": {
    "exec": "~/.config/waybar/scripts/dunst.sh",
    "on-click": "dunstctl set-paused toggle",
    "restart-interval": 1,
}

~/.config/waybar/scripts/dunst.sh

#!/bin/bash

COUNT=$(dunstctl count waiting)
ENABLED=
DISABLED=
if [ $COUNT != 0 ]; then DISABLED="$COUNT"; fi
if dunstctl is-paused | grep -q "false" ; then echo $ENABLED; else echo $DISABLED; fi

Or if you want a version that reacts to dbus events instead:

#!/usr/bin/env bash
set -euo pipefail

readonly ENABLED=' '
readonly DISABLED=' '
dbus-monitor path='/org/freedesktop/Notifications',interface='org.freedesktop.DBus.Properties',member='PropertiesChanged' --profile |
  while read -r _; do
    PAUSED="$(dunstctl is-paused)"
    if [ "$PAUSED" == 'false' ]; then
      CLASS="enabled"
      TEXT="$ENABLED"
    else
      CLASS="disabled"
      TEXT="$DISABLED"
      COUNT="$(dunstctl count waiting)"
      if [ "$COUNT" != '0' ]; then
        TEXT="$DISABLED ($COUNT)"
      fi
    fi
    printf '{"text": "%s", "class": "%s"}\n' "$TEXT" "$CLASS"
  done

NVIDIA GPU (with nvidia-smi)

"custom/nvidia": {
    "exec": "nvidia-smi --query-gpu=utilization.gpu,temperature.gpu --format=csv,nounits,noheader | sed 's/\\([0-9]\\+\\), \\([0-9]\\+\\)/\\1% 🌡️\\2°C/g'",
    "format": "{} 🖥️",
    "interval": 2
}

Generic MediaPlayer:

Supports vlc, mpv, RhythmBox, web browsers, cmus, mpd, spotify and others.

"custom/media": {
    "format": "{icon} {}",
    "escape": true,
    "return-type": "json",
    "max-length": 40,
    "on-click": "playerctl play-pause",
    "on-click-right": "playerctl stop",
    "smooth-scrolling-threshold": 10, // This value was tested using a trackpad, it should be lowered if using a mouse.
    "on-scroll-up": "playerctl next",
    "on-scroll-down": "playerctl previous",
    "exec": "$HOME/.config/waybar/mediaplayer.py 2> /dev/null", // Script in resources/custom_modules folder
}

Spotify:

"custom/spotify": {
    "format": "{icon} {}",
    "escape": true,
    "return-type": "json",
    "max-length": 40,
    "interval": 30, // Remove this if your script is endless and write in loop
    "on-click": "playerctl -p spotify play-pause",
    "on-click-right": "killall spotify",
    "smooth-scrolling-threshold": 10, // This value was tested using a trackpad, it should be lowered if using a mouse.
    "on-scroll-up" : "playerctl -p spotify next",
    "on-scroll-down" : "playerctl -p spotify previous",
    "exec": "$HOME/.config/waybar/mediaplayer.py 2> /dev/null", // Script in resources/custom_modules folder
    "exec-if": "pgrep spotify"
}

mpd:

"custom/mpd": {
    "format": "♪ {}",
    //"max-length": 15,
    "interval": 10, 
    "exec": "mpc current", 
    "exec-if": "pgrep mpd",
    "on-click": "mpc toggle",
    "on-click-right": "sonata"
}

cmus:

"custom/cmus": {
    "format": "♪ {}",
    //"max-length": 15,
    "interval": 10,
    "exec": "cmus-remote -C \"format_print '%a - %t'\"", // artist - title
    "exec-if": "pgrep cmus",
    "on-click": "cmus-remote -u",                        //toggle pause
    "escape": true                                       //handle markup entities
}

MPRIS controller

"custom/media": {
    "format": "{icon}{}",
    "return-type": "json",
    "format-icons": {
        "Playing": " ",
        "Paused": " ",
    },
    "max-length":70,
    "exec": "playerctl -a metadata --format '{\"text\": \"{{playerName}}: {{artist}} - {{markup_escape(title)}}\", \"tooltip\": \"{{playerName}} : {{markup_escape(title)}}\", \"alt\": \"{{status}}\", \"class\": \"{{status}}\"}' -F",
    "on-click": "playerctl play-pause",
}

Pipewire:

Uses Wireplumber

~/.config/waybar/config

"custom/pipewire": {
    "tooltip": false,
    "max-length": 6,
    "exec": "$HOME/.config/waybar/scripts/pipewire.sh",
    "on-click": "pavucontrol",
    "on-click-right": "qpwgraph"
}

~/.config/waybar/scripts/pipewire.sh

#!/bin/bash

set -e

# https://blog.dhampir.no/content/sleeping-without-a-subprocess-in-bash-and-how-to-sleep-forever
snore() {
    local IFS
    [[ -n "${_snore_fd:-}" ]] || exec {_snore_fd}<> <(:)
    read -r ${1:+-t "$1"} -u $_snore_fd || :
}

DELAY=0.2

while snore $DELAY; do
    WP_OUTPUT=$(wpctl get-volume @DEFAULT_AUDIO_SINK@)

    if [[ $WP_OUTPUT =~ ^Volume:[[:blank:]]([0-9]+)\.([0-9]{2})([[:blank:]].MUTED.)?$ ]]; then
        if [[ -n ${BASH_REMATCH[3]} ]]; then
            printf "MUTE\n"
        else
            VOLUME=$((10#${BASH_REMATCH[1]}${BASH_REMATCH[2]}))
            ICON=(
                ""
                ""
                ""
            )

            if [[ $VOLUME -gt 50 ]]; then
                printf "%s" "${ICON[0]} "
            elif [[ $VOLUME -gt 25 ]]; then
                printf "%s" "${ICON[1]} "
            elif [[ $VOLUME -ge 0 ]]; then
                printf "%s" "${ICON[2]} "
            fi

            printf "$VOLUME%%\n"
        fi
    fi
done

exit 0

Pacman

"custom/pacman": {
    "format": "{}  ",
    "interval": "once",
    "exec": "pacman_packages",
    "on-click": "update-system",
    "signal": 8
}
//alternate
"custom/pacman": {
    "format": "{}  ",
    "interval": 3600,                     // every hour
    "exec": "checkupdates | wc -l",       // # of updates
    "exec-if": "exit 0",                  // always run; consider advanced run conditions
    "on-click": "termite -e 'sudo pacman -Syu'; pkill -SIGRTMIN+8 waybar", // update system
    "signal": 8
}

You can use the signal and update the number of available packages with pkill -RTMIN+8 waybar.

XBPS

Show available updates for void linux.

~/.config/waybar/config

  "custom/xbps": {
    "format": "{}  ",
    "return-type": "json",
    "tooltip": true,
    "interval": "3600",
    "exec": "~/.config/waybar/custom/xbps-updates.sh"
  },

~/.config/waybar/custom/xbps-updates.sh

#!/bin/bash

pkgs=$(xbps-install -nuM | awk '{print $1}')
pkg_count=$(echo $pkgs | wc -w)
pkg_list=$(echo $pkgs | sed 's/ /\\r/g')

echo "{\"text\":\"$pkg_count\", \"tooltip\":\"$pkg_list\"}"

DeaDBeeF

"custom/deadbeef": {
    "format": " {}",
    "max-length": 50,    
    "interval": 10,
    "exec": "deadbeef --nowplaying-tf '{\"text\": \"%title%\", \"tooltip\":\"%artist% - %title%\",\"class\":\"$if(%isplaying%,playing,not-playing)\"}'",
    "return-type": "json",
    "exec-if": "pgrep deadbeef",
    "on-click": "deadbeef --toggle-pause"
}

VPN indicator

(the indicator is quite silly and only checks whether a tunnel exists or not)

"custom/vpn": {
    "format": "VPN ",
    "exec": "echo '{\"class\": \"connected\"}'",
    "exec-if": "test -d /proc/sys/net/ipv4/conf/tun0",
    "return-type": "json",
    "interval": 5
}

Github notifications

"custom/github": {
    "format": "{} ",
    "return-type": "json",
    "interval": 60,
    "exec": "$HOME/.config/waybar/github.sh",
    "on-click": "xdg-open https://github.com/notifications"
}
  1. Make sure jq is installed.
  2. Create notifications.token, a personal access token, with notifications in scope at https://github.com/settings/tokens.
  3. Create github.sh with the contents below, replacing username with your own.
#!/bin/bash

token=`cat ${HOME}/.config/github/notifications.token`
count=`curl -u username:${token} https://api.github.com/notifications | jq '. | length'`

if [[ "$count" != "0" ]]; then
    echo '{"text":'$count',"tooltip":"$tooltip","class":"$class"}'
fi

Weather

Replace Berlin+Germany with your own city.

~/.config/waybar/config

"custom/weather": {
    "exec": "${HOME}/.config/waybar/scripts/get_weather.sh Berlin+Germany",
    "return-type": "json",
    "format": "{}",
    "tooltip": true,
    "interval": 3600
}

~/.config/waybar/scripts/get_weather.sh

#!/usr/bin/env bash
for i in {1..5}
do
    text=$(curl -s "https://wttr.in/$1?format=1")
    if [[ $? == 0 ]]
    then
        text=$(echo "$text" | sed -E "s/\s+/ /g")
        tooltip=$(curl -s "https://wttr.in/$1?format=4")
        if [[ $? == 0 ]]
        then
            tooltip=$(echo "$tooltip" | sed -E "s/\s+/ /g")
            echo "{\"text\":\"$text\", \"tooltip\":\"$tooltip\"}"
            exit
        fi
    fi
    sleep 2
done
echo "{\"text\":\"error\", \"tooltip\":\"error\"}"

Sway Scratchpad Indicator:

Requires jq

Get all the scratchpad nodes. Shows the count as module text and the window class/app_id, id, and name on hover, and doesn't display anything if there are no nodes in the scratchpad.

"custom/scratchpad-indicator": {
    "interval": 3,
    "return-type": "json",
    "exec": "swaymsg -t get_tree | jq --unbuffered --compact-output '(recurse(.nodes[]) | select(.name == \"__i3_scratch\") | .focus) as $scratch_ids | [..  | (.nodes? + .floating_nodes?) // empty | .[] | select(.id |IN($scratch_ids[]))] as $scratch_nodes | if ($scratch_nodes|length) > 0 then { text: \"\\($scratch_nodes | length)\", tooltip: $scratch_nodes | map(\"\\(.app_id // .window_properties.class) (\\(.id)): \\(.name)\") | join(\"\\n\") } else empty end'",
    "format": "{} 🗗",
    "on-click": "exec swaymsg 'scratchpad show'",
    "on-click-right": "exec swaymsg 'move scratchpad'"
}

A simpler version, that only shows the number of windows when there is at least one (hidden when there are 0). Shows no additional info on hover.

"custom/scratchpad_indicator": {
   "interval": 3,
   "exec": "swaymsg -t get_tree | jq 'recurse(.nodes[]) | first(select(.name==\"__i3_scratch\")) | .floating_nodes | length | select(. >= 1)'",
   "format": "{} ",
   "on-click": "swaymsg 'scratchpad show'",
   "on-click-right": "swaymsg 'move scratchpad'"
}

Sway output scaling toggle

"custom/output-scale": {
    "format": "{icon} {}",
    "return-type": "json",
    "format-icons": { // These are FontAwesome 4 icons. Update them as needed.
        "scale": " \uf0b2",
        "noscale": "\uf066"
    },
    "exec-on-event": true,
    "interval": "once",
    "exec": "( swaymsg -r -t get_outputs | jq '.[0].scale' | xargs test 1 == ) && echo '{\"alt\": \"noscale\"}' || echo '{\"alt\":\"scale\"}'",
    "exec-if": "sleep 0.1", // Give enough time for `sway output` command changes to propagate so we can read them in the next `exec`
    "on-click": "( swaymsg -r -t get_outputs | jq '.[0].scale' | xargs test 1 = ) && swaymsg output DP-1 scale 1.4 || swaymsg output DP-1 scale 1"
}
  1. Change the desired scaling parameter in on-click configuration.
  2. Update the correct output from DP-1 to the one you have.
  3. Change the index [0] in exec and on-click if you have more than one output, and need to adjust non-zero output.

Display current Pulseaudio sink and cycle between sinks on click

"custom/pulseaudio-cycle": {
    "return-type": "json",
    "exec-on-event": true,
    "interval": "5s",
    "exec" "pactl --format=json list sinks | jq -cM --unbuffered \"map(select(.name == \\\"$(pactl get-default-sink)\\\"))[0].properties | [.\\\"media.name\\\",.\\\"alsa.name\\\",.\\\"node.nick\\\",.\\\"alsa.long_card_name\\\"] | map(select(length>0))[0] | {text:.}\"",
    "exec-if": "sleep 0.1", // Give enough time for `pactl get-default-sink` to update
    "on-click": "pactl --format=json list sinks short | jq -cM --unbuffered \"[.[].name] | .[((index(\\\"$(pactl get-default-sink)\\\")+1)%length)]\" | xargs pactl set-default-sink"
}

Calendar with CalDAV integration

Requires plann

#!/usr/bin/env bash

PLANN=$HOME/.pyenv/versions/plann/bin/plann

printf '{"text":"'
printf "󰸘 $(date +'%m-%d (%a)') "
printf "󰅐 $(date +'%H:%M')"
printf '",'
printf '"tooltip":"%s"' "$($PLANN --caldav-url CALDAV_URL --caldav-username CALDAV_USER --caldav-password CALDAV_PASSWORD --calendar-name 'CALDAV_CALENDAR_NAME' agenda | head --lines -1 | sed 's/$/\\n/' | tr -d '\n' | head --bytes -2)"
printf '}'

Remove --calendar-name option to displays the last events across all calendars.

Measure power draw (of PC for example) on Tuya Smart power plug over Zigbee2MQTT

Requires mosquitto and jq

"custom/tuya": {
    "format": "{}w",
    "exec": "mosquitto_sub -h YOUR_HOST -t 'zigbee2mqtt/YOUR_SMART_DEV' | jq '.power' --unbuffered",
    "exec-if": "exit 0",
    "restart-interval": 60,
    "escape": true,
}
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