void initTouchEvent(
    in TouchList touches, 
    in TouchList targetTouches, 
    in TouchList changedTouches, 
    in DOMString type, 
    in DOMWindow view, 
    in long screenX, 
    in long screenY, 
    in long clientX, 
    in long clientY, 
    in boolean ctrlKey, 
    in boolean altKey, 
    in boolean shiftKey, 
    in boolean metaKey); 

readonly attribute boolean altKey; 

readonly attribute TouchList changedTouches; 

readonly attribute boolean ctrlKey; 

readonly attribute boolean metaKey; 

readonly attribute boolean shiftKey; 

readonly attribute TouchList targetTouches; 

readonly attribute TouchList touches;