EventTargetImpl

In short, all browsers provide an EventTarget implementation attached to DOM nodes, XmlHTTPRequests, etc.; however, one cannot simply perform new EventTarget(); (it throws TypeError). If one manages to get around that hurdle, perhaps by putting an DOM (input) element inside his class, he still cannot simply call eventTarget.dispatchEvent( 'eventName' ); (throws InvalidStateError). So, this is an implementation which should help with these limitations.

One can use this by containment,

function YourEventContainingClass()
{
  var eventTarget = new EventTarget();
}
YourEventContainingClass.prototype = Object.create( Object );
YourEventContainingClass.prototype.constructor = YourEventContainingClass;

by interface extension,

function YourEventExtendedClass()
{
  EventTarget.call( this );
}
YourEventExtendedClass.prototype = Object.create( Object );
YourEventExtendedClass.prototype.constructor = YourEventExtendedClass;

or by prototypical inheritance.

function YourEventInheritingClass()
{}
YourEventInheritingClass.prototype = Object.create( EventTargetImpl );
YourEventInheritingClass.prototype.constructor = YourEventInheritingClass;

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