Auto-click when Caps Lock ON

zen-autoclick.sh

#!/bin/bash

#             DO WHAT THE FUCK YOU WANT TO PUBLIC LICENSE
#                    Version 2, December 2004
#  
# Copyright (C) 2004 Sam Hocevar <sam@hocevar.net>
# 
# Everyone is permitted to copy and distribute verbatim or modified
# copies of this license document, and changing it is allowed as long
# as the name is changed.
#  
#            DO WHAT THE FUCK YOU WANT TO PUBLIC LICENSE
#   TERMS AND CONDITIONS FOR COPYING, DISTRIBUTION AND MODIFICATION
# 
#  0. You just DO WHAT THE FUCK YOU WANT TO.

# DEPENDENCY: xautomation x11-xserver-utils zenity
# FIELD OF APPLICATION: whatever you want

function main()
{
  zenity --title="Autoclick" --info --text="CAPS-LOCK to start autoclick!" --ellipsize
  set_capslock_off
  
  (while true
  do
    if [[ `check_capslock` == "ON" ]]; then
      xte 'mousedown 1' 'mouseup 1'
      echo "# Autoclick ON"
    else
      echo "# Autoclick OFF"
    fi
  done) | zenity --title Autoclick --progress --pulsate
}

# Return Caps Lock status: ON or OFF
function check_capslock
{
  # Read caps lock status
  STATUS=`xset -q | grep "Caps Lock:"`
  
  # Delete trail spaces
  STATUS=`echo ${STATUS}`
  
  # Check Caps Lock status
  if [[ "$STATUS" == *"Caps Lock: on"* ]]
  then
    echo "ON"
  else
    echo "OFF"
  fi
}

# Turn Caps Lock OFF
function set_capslock_off()
{
  if [[ `check_capslock` == "ON" ]]
  then
    echo -e "Caps Lock is ON. Turning it OFF...\c"
    xte "key Caps_Lock"
    echo "OK"
  fi
}

main

Zen Autoclick

Simple and lightweight utility to save the wrist from the carpal tunnel.