Special builds of Firefox 8 are shipping with joystick events

joystick.html

<script src="joystick.js"></script>

joystick.js

/*
MozJoyAxisMove
MozJoyButtonUp
MozJoyButtonDown
*/

var joyEvents = {

    MozJoyAxisMove: {
      props: [ "joystickID", "axis", "value" ],
      listen: 1
    },
    MozJoyButtonUp: {
      props: [ "joystickID", "button" ],
      listen: 1
    },
    MozJoyButtonDown: {
      props: [ "joystickID", "button" ],
      listen: 1
    }
  }, 
  joyEventsKeys = Object.keys( joyEvents );

// Iterate joystick events, add an event listener to the window to log events
joyEventsKeys.forEach(function( type, idx ) {

  var joyEvent = joyEvents[ type ];

  if ( joyEvent.listen ) {

    window.addEventListener( type, function( event ) {

      console.log( 
        type, 
        joyEvent.props.map(function( val ) {
          return val + ": " + event[ val ];
        }).join(", ") 
      );

    }, false);
  }

  if ( idx === joyEventsKeys.length - 1 ) {
    console.log( "MozJoy* Events Ready" );
  }
}, joyEvents );

http://jsfiddle.net/rwaldron/wPuGB/

Yay! Just added joystick controls to my Miner! clone: http://valentinlaube.de/projects/miner/