Function EventEmitterMixin

This function adds core eventemitter functionality to the targeted class. It modifies the class and the instance.

• It adds Events list as Class.Events as static variable
• It mixins the eventEmitter class if not inherited
• It adds relevant inheritance to the class if there is a parent class
• It alters the 'on' method relevant with inheritance

Example

// viewGroup-Android.js
const Events = { ...View.Events, ...EventList }; // Inherit the Parent Events
const EventFunctions = {
  [EventsList.ViewAdded]: function() {
    this.onViewAdded = EventEmitterWrapper(this, EventList.ViewAdded, null);
  }
}

function ViewGroup() {
  function emitterCallBack() {
    if (!this.didSetHierarchyChangeListener) {
      setHierarchyChangeListener(this);
    }
  }
  EventEmitterCreator(this, EventFunctions, emitterCallBack.bind(this));
}