@wapps/storybook-addon-state
Version:
Storybook addon to manage state
43 lines (32 loc) • 1.36 kB
JavaScript
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;
;