UNPKG

@wapps/storybook-addon-state

Version:
43 lines (32 loc) 1.36 kB
"use strict"; Object.defineProperty(exports, "__esModule", { value: true }); exports.default = void 0; function _objectSpread(target) { for (var i = 1; i < arguments.length; i++) { var source = arguments[i] != null ? arguments[i] : {}; var ownKeys = Object.keys(source); if (typeof Object.getOwnPropertySymbols === 'function') { ownKeys = ownKeys.concat(Object.getOwnPropertySymbols(source).filter(function (sym) { return Object.getOwnPropertyDescriptor(source, sym).enumerable; })); } ownKeys.forEach(function (key) { _defineProperty(target, key, source[key]); }); } return target; } function _defineProperty(obj, key, value) { if (key in obj) { Object.defineProperty(obj, key, { value: value, enumerable: true, configurable: true, writable: true }); } else { obj[key] = value; } return obj; } class Store { constructor(state = {}) { this.state = _objectSpread({}, state); this.handlers = []; // observers } set(newState) { this.state = _objectSpread({}, this.state, newState); this.fire(); } get(key) { return this.state[key]; } subscribe(fn) { this.handlers.push(fn); return fn; } unsubscribe(fn) { this.handlers = this.handlers.filter(handler => handler !== fn); } fire() { this.handlers.forEach(handler => handler(this.state)); } } var _default = Store; exports.default = _default;