react-sweet-state/lib/cjs/store/create-state.js

Global + local state combining the best of Redux and Context API

"use strict";

Object.defineProperty(exports, "__esModule", {
  value: true
});
exports["default"] = void 0;

var _middlewares = _interopRequireDefault(require("../middlewares"));

var _devtools = _interopRequireDefault(require("../enhancers/devtools"));

var _defaults = _interopRequireDefault(require("../defaults"));

var _schedule = _interopRequireDefault(require("../utils/schedule"));

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

function _createForOfIteratorHelper(o, allowArrayLike) { var it = typeof Symbol !== "undefined" && o[Symbol.iterator] || o["@@iterator"]; if (!it) { if (Array.isArray(o) || (it = _unsupportedIterableToArray(o)) || allowArrayLike && o && typeof o.length === "number") { if (it) o = it; var i = 0; var F = function F() {}; return { s: F, n: function n() { if (i >= o.length) return { done: true }; return { done: false, value: o[i++] }; }, e: function e(_e) { throw _e; }, f: F }; } throw new TypeError("Invalid attempt to iterate non-iterable instance.\nIn order to be iterable, non-array objects must have a [Symbol.iterator]() method."); } var normalCompletion = true, didErr = false, err; return { s: function s() { it = it.call(o); }, n: function n() { var step = it.next(); normalCompletion = step.done; return step; }, e: function e(_e2) { didErr = true; err = _e2; }, f: function f() { try { if (!normalCompletion && it["return"] != null) it["return"](); } finally { if (didErr) throw err; } } }; }

function _unsupportedIterableToArray(o, minLen) { if (!o) return; if (typeof o === "string") return _arrayLikeToArray(o, minLen); var n = Object.prototype.toString.call(o).slice(8, -1); if (n === "Object" && o.constructor) n = o.constructor.name; if (n === "Map" || n === "Set") return Array.from(o); if (n === "Arguments" || /^(?:Ui|I)nt(?:8|16|32)(?:Clamped)?Array$/.test(n)) return _arrayLikeToArray(o, minLen); }

function _arrayLikeToArray(arr, len) { if (len == null || len > arr.length) len = arr.length; for (var i = 0, arr2 = new Array(len); i < len; i++) { arr2[i] = arr[i]; } return arr2; }

function createStoreState(key, initialState) {
  var _listeners = new Set();

  var currentState = initialState;
  var storeState = {
    key: key,
    getState: function getState() {
      return currentState;
    },
    setState: function setState(nextState) {
      currentState = nextState; // Instead of notifying all handlers immediately, we wait next tick
      // so multiple actions affecting the same store gets combined

      (0, _schedule["default"])(storeState.notify);
    },
    resetState: function resetState() {
      storeState.setState(initialState);
    },
    notify: function notify() {
      var _iterator = _createForOfIteratorHelper(_listeners),
          _step;

      try {
        for (_iterator.s(); !(_step = _iterator.n()).done;) {
          var listener = _step.value;
          listener(storeState.getState());
        }
      } catch (err) {
        _iterator.e(err);
      } finally {
        _iterator.f();
      }
    },
    subscribe: function subscribe(listener) {
      _listeners.add(listener);

      return function unsubscribe() {
        _listeners["delete"](listener);
      };
    },
    listeners: function listeners() {
      return _listeners;
    }
  };
  storeState.mutator = (0, _middlewares["default"])(storeState, _defaults["default"].middlewares);
  return storeState;
}

var _default = (0, _devtools["default"])(createStoreState);

exports["default"] = _default;