`eventListenerList`

eventListenerList.js

;[Element].forEach(function(self){

  self.prototype.eventListenerList = {};
  self.prototype._addEventListener = self.prototype.addEventListener;
  self.prototype.addEventListener = function(type, handle, useCapture) {
    
    useCapture = useCapture === void 0 ? false : useCapture;
    var node = this;

    node._addEventListener(type, handle, useCapture);
    if(!node.eventListenerList[type]){
      node.eventListenerList[type] = [];
    }

    node.eventListenerList[type].push({
      type : type,
      handle : handle,
      useCapture : useCapture,
      remove : function(){
        node.removeEventListener(
          this.type, this.handle, this.useCapture
        );
        return node.eventListenerList[type];
      }
    });
  };

  self.prototype._removeEventListener = self.prototype.removeEventListener;
  self.prototype.removeEventListener = function(type, handle, useCapture){

    var node = this;
    if(!node.eventListenerList[type])
      return ;
  
    node._removeEventListener(type, handle, useCapture);
    node.eventListenerList[type] = node.eventListenerList[type].filter(
      function(listener){
        return listener.handle.toString() !== handle.toString();
      }
    )
  
    if(node.eventListenerList[type].length === 0){
      delete node.eventListenerList[type];
    }
  }
})