dotfiles/bin/i3-focus.sh

#!/usr/bin/env bash

# loops over i3 ipc events to prevent unnesecary polling

while :; do
    # infinite loop
    i3_msg=$(i3-msg -t SUBSCRIBE '[ "window" , "output" ]')
    window=$(echo "$i3_msg" | gojq 'if .change == "focus" then .container.window_properties end | if .title == "tmux" then .title else .class end' | tr -d '"')
    case "$window" in
        'st-256color')      echo 'st'       ;;
        'Brave-browser')    echo 'Brave'    ;;
        'null')             continue        ;;
        *)                  echo "$window"  ;;
    esac
done