interface PointerEvent : UIEvent {
        readonly attribute long streamId;

        readonly attribute long screenX;
        readonly attribute long screenY;

        readonly attribute long clientX;
        readonly attribute long clientY;

        readonly attribute boolean ctrlKey;
        readonly attribute boolean shiftKey;
        readonly attribute boolean altKey;
        readonly attribute boolean metaKey;
        // This misses initPointerEvent method
      };
    

Touch events are...

One event per touch.

      interface TouchEvent : PointerEvent {
        //XXX 0 - 1 ? or what?
        readonly attribute float pressure;

        readonly attribute long size; // pixels

        // This misses initTouchEvent method
      };
      

Event types: touchdown, touchmove, touchup, touchover, touchout

Gesture events are...

        interface GestureEvent : PointerEvent {
           // degrees
          readonly attribute float direction;
          readonly attribute float delta;
          // UIEvent detail can be used too
          // No need for pan speed or anything.
          // This misses initGestureEvent
        };
      

Event types: gestureStart, gestureEnd, pan, rotate, zoom.