zent/lib/grid/Store.js

一套前端设计语言和基于React的实现

'use strict';

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

var _defineProperty2 = require('babel-runtime/helpers/defineProperty');

var _defineProperty3 = _interopRequireDefault(_defineProperty2);

var _classCallCheck2 = require('babel-runtime/helpers/classCallCheck');

var _classCallCheck3 = _interopRequireDefault(_classCallCheck2);

var _assign = require('lodash/assign');

var _assign2 = _interopRequireDefault(_assign);

var _get = require('lodash/get');

var _get2 = _interopRequireDefault(_get);

var _has = require('lodash/has');

var _has2 = _interopRequireDefault(_has);

var _indexOf = require('lodash/indexOf');

var _indexOf2 = _interopRequireDefault(_indexOf);

var _isArray = require('lodash/isArray');

var _isArray2 = _interopRequireDefault(_isArray);

var _keys = require('lodash/keys');

var _keys2 = _interopRequireDefault(_keys);

var _forEach = require('lodash/forEach');

var _forEach2 = _interopRequireDefault(_forEach);

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { 'default': obj }; }

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

  (0, _classCallCheck3['default'])(this, Store);

  this.setState = function (nextState) {
    _this.state = (0, _assign2['default'])({}, _this.state, nextState);
    (0, _forEach2['default'])((0, _keys2['default'])(nextState), function (stateName) {
      (0, _forEach2['default'])((0, _get2['default'])(_this.listeners, stateName), function (listener) {
        listener();
      });
    });
  };

  this.getState = function (propsName, callBack) {
    if (propsName) {
      var props = (0, _get2['default'])(_this.state, propsName);
      if (callBack && !(0, _has2['default'])(_this.state, propsName)) {
        _this.setState((0, _defineProperty3['default'])({}, propsName, callBack()));
        return _this.getState(propsName);
      }
      return props;
    }
    return _this.state;
  };

  this.trigger = function (eventName) {
    (0, _forEach2['default'])((0, _get2['default'])(_this.listeners, eventName), function (listener) {
      listener();
    });
  };

  this.subscribe = function (eventName, listener) {
    _this.listeners[eventName] = _this.listeners[eventName] || [];
    _this.listeners[eventName].push(listener);

    return function () {
      var listeners = (0, _get2['default'])(_this.listeners, eventName);
      var index = (0, _indexOf2['default'])(listeners, listener);

      if ((0, _isArray2['default'])(listeners)) {
        _this.listeners[eventName].splice(index, 1);
      }
    };
  };

  this.state = {};
  this.listeners = {};
};

exports['default'] = Store;