react-sync-state/lib/_Entity.js

A client side implementation for synchronizing states with server

"use strict";

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; }; })();

Object.defineProperty(exports, "__esModule", {
  value: true
});

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

var Entity = (function () {
  function Entity() {
    _classCallCheck(this, Entity);

    this._listeners = [];
  }

  /**
   * Register a listener on this entity to be informed about changes
   * made to this entity
  */

  _createClass(Entity, [{
    key: "subscribe",
    value: function subscribe(listener) {
      if (this._listeners.indexOf(listener) == -1) {
        this._listeners.push(listener);
      }
    }

    /**
     * Unregister a listener on this entity to avoid being informed
     * about changes made to this entity
     */

  }, {
    key: "unsubscribe",
    value: function unsubscribe(listener) {
      var idx = this._listeners.indexOf(listener);
      if (idx >= 0) {
        this._listeners.splice(idx, 1);
      }
    }
  }, {
    key: "fire",
    value: function fire() {
      for (var x in this._listeners) {
        this._listeners[x].onStateChanged && this._listeners[x].onStateChanged(this);
      }
    }
  }]);

  return Entity;
})();

exports.default = Entity;