refraction/lib/Mediator.js

A guard that represent central point of control in your application.

"use strict";

exports.__esModule = true;

var _createClass = function () { function defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ("value" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } } return function (Constructor, protoProps, staticProps) { if (protoProps) defineProperties(Constructor.prototype, protoProps); if (staticProps) defineProperties(Constructor, staticProps); return Constructor; }; }();

function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }

var Mediator = function () {
  function Mediator() {
    var _this = this;

    _classCallCheck(this, Mediator);

    this.subscribers = [];

    this.publish = function (channel, param) {
      _this.subscribers.forEach(function (subscriber) {
        if (!subscriber) {
          _this.unsubscribe(subscriber);
        } else if (subscriber[channel]) {
          subscriber[channel](param);
        }
      });
    };
  }

  _createClass(Mediator, [{
    key: "subscribe",
    value: function subscribe(subscriber, compareFunction) {
      if (this.subscribers.indexOf(subscriber) === -1) {
        this.subscribers.push(subscriber);
        this.subscribers.sort(compareFunction);
      }
    }
  }, {
    key: "unsubscribe",
    value: function unsubscribe(subscriber) {
      var index = this.subscribers.indexOf(subscriber);
      if (index !== -1) {
        this.subscribers.splice(index, 1);
      }
    }
  }]);

  return Mediator;
}();

exports["default"] = Mediator;