@ucloud-pccl/react-components/lib/stores/SimpleStore.js

UCloud pccl react components

"use strict";

var _interopRequireDefault = require("@babel/runtime/helpers/interopRequireDefault");
Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.default = void 0;
var _defineProperty2 = _interopRequireDefault(require("@babel/runtime/helpers/defineProperty"));
var _newArrowCheck2 = _interopRequireDefault(require("@babel/runtime/helpers/newArrowCheck"));
var _createClass2 = _interopRequireDefault(require("@babel/runtime/helpers/createClass"));
var _classCallCheck2 = _interopRequireDefault(require("@babel/runtime/helpers/classCallCheck"));
var _this = void 0;
function ownKeys(e, r) { var t = Object.keys(e); if (Object.getOwnPropertySymbols) { var o = Object.getOwnPropertySymbols(e); r && (o = o.filter(function (r) { return Object.getOwnPropertyDescriptor(e, r).enumerable; })), t.push.apply(t, o); } return t; }
function _objectSpread(e) { for (var r = 1; r < arguments.length; r++) { var t = null != arguments[r] ? arguments[r] : {}; r % 2 ? ownKeys(Object(t), !0).forEach(function (r) { (0, _defineProperty2.default)(e, r, t[r]); }) : Object.getOwnPropertyDescriptors ? Object.defineProperties(e, Object.getOwnPropertyDescriptors(t)) : ownKeys(Object(t)).forEach(function (r) { Object.defineProperty(e, r, Object.getOwnPropertyDescriptor(t, r)); }); } return e; }
var SimpleStore = exports.default = /*#__PURE__*/(0, _createClass2.default)(function SimpleStore(initialState) {
  (0, _classCallCheck2.default)(this, SimpleStore);
  return createStore(initialState);
});
var createStore = function createStore(initialState) {
  (0, _newArrowCheck2.default)(this, _this);
  var state = initialState;
  var listeners = [];
  function setState(partial) {
    state = _objectSpread(_objectSpread({}, state), partial);
  }
  function getState() {
    return state;
  }
  function dispatch() {
    for (var i = 0; i < listeners.length; i++) {
      var listener = listeners[i];
      listener();
    }
  }
  function subscribe(listener) {
    var _this2 = this;
    listeners.push(listener);
    return {
      unsubscribe: function unsubscribe() {
        (0, _newArrowCheck2.default)(this, _this2);
        return _unsubscribe(listener);
      }.bind(this)
    };
  }
  function _unsubscribe(listener) {
    var index = listeners.indexOf(listener);
    index >= 0 && listeners.splice(index, 1);
  }
  return {
    setState: setState,
    getState: getState,
    subscribe: subscribe,
    unsubscribe: _unsubscribe,
    dispatch: dispatch
  };
}.bind(void 0);