berish-stober
Version:
Библиотека расширенного манипулирования хранилищем. Позволяет расширять функционал хранения данных посредством специальных обработчиков
174 lines • 7.61 kB
JavaScript
"use strict";
var __awaiter = (this && this.__awaiter) || function (thisArg, _arguments, P, generator) {
return new (P || (P = Promise))(function (resolve, reject) {
function fulfilled(value) { try { step(generator.next(value)); } catch (e) { reject(e); } }
function rejected(value) { try { step(generator["throw"](value)); } catch (e) { reject(e); } }
function step(result) { result.done ? resolve(result.value) : new P(function (resolve) { resolve(result.value); }).then(fulfilled, rejected); }
step((generator = generator.apply(thisArg, _arguments || [])).next());
});
};
var __generator = (this && this.__generator) || function (thisArg, body) {
var _ = { label: 0, sent: function() { if (t[0] & 1) throw t[1]; return t[1]; }, trys: [], ops: [] }, f, y, t, g;
return g = { next: verb(0), "throw": verb(1), "return": verb(2) }, typeof Symbol === "function" && (g[Symbol.iterator] = function() { return this; }), g;
function verb(n) { return function (v) { return step([n, v]); }; }
function step(op) {
if (f) throw new TypeError("Generator is already executing.");
while (_) try {
if (f = 1, y && (t = op[0] & 2 ? y["return"] : op[0] ? y["throw"] || ((t = y["return"]) && t.call(y), 0) : y.next) && !(t = t.call(y, op[1])).done) return t;
if (y = 0, t) op = [op[0] & 2, t.value];
switch (op[0]) {
case 0: case 1: t = op; break;
case 4: _.label++; return { value: op[1], done: false };
case 5: _.label++; y = op[1]; op = [0]; continue;
case 7: op = _.ops.pop(); _.trys.pop(); continue;
default:
if (!(t = _.trys, t = t.length > 0 && t[t.length - 1]) && (op[0] === 6 || op[0] === 2)) { _ = 0; continue; }
if (op[0] === 3 && (!t || (op[1] > t[0] && op[1] < t[3]))) { _.label = op[1]; break; }
if (op[0] === 6 && _.label < t[1]) { _.label = t[1]; t = op; break; }
if (t && _.label < t[2]) { _.label = t[2]; _.ops.push(op); break; }
if (t[2]) _.ops.pop();
_.trys.pop(); continue;
}
op = body.call(thisArg, _);
} catch (e) { op = [6, e]; y = 0; } finally { f = t = 0; }
if (op[0] & 5) throw op[1]; return { value: op[0] ? op[1] : void 0, done: true };
}
};
Object.defineProperty(exports, "__esModule", { value: true });
var Store = /** @class */ (function () {
function Store(storeAdapterFabric, reducers, initialState) {
var _this = this;
this.storeAdapterFabric = null;
this.storeAdapter = null;
this.reducers = [];
this.callbacks = [];
this.stateSymbol = Symbol('state');
this.storage = null;
this.isEmittedByDispatch = false;
this.dispatch = this.dispatch.bind(this);
this.subscribe = this.subscribe.bind(this);
this.get = this.get.bind(this);
this.set = this.set.bind(this);
this.storeAdapterFabric = storeAdapterFabric;
this.reducers = reducers || [];
this.storeAdapter = this.storeAdapterFabric(function (state, action) {
var newState = Object.assign({}, state);
for (var _i = 0, _a = _this.reducers; _i < _a.length; _i++) {
var reducer = _a[_i];
newState = reducer(newState, action);
}
return newState;
}, initialState);
this.state = Object.assign({}, initialState);
this.storeInitialized();
}
Object.defineProperty(Store.prototype, "state", {
get: function () {
return this[this.stateSymbol];
},
set: function (value) {
this[this.stateSymbol] = value;
},
enumerable: true,
configurable: true
});
Store.prototype.setStorage = function (storage) {
this.storage = storage;
return this;
};
Store.prototype.dispatch = function (action) {
return __awaiter(this, void 0, void 0, function () {
return __generator(this, function (_a) {
switch (_a.label) {
case 0:
_a.trys.push([0, , 4, 5]);
return [4 /*yield*/, this.storeAdapter.dispatch(action)];
case 1:
_a.sent();
if (!(this.storage && !this.isEmittedByDispatch)) return [3 /*break*/, 3];
return [4 /*yield*/, this.storage.save(this.state)];
case 2:
_a.sent();
_a.label = 3;
case 3: return [3 /*break*/, 5];
case 4:
this.isEmittedByDispatch = false;
return [7 /*endfinally*/];
case 5: return [2 /*return*/];
}
});
});
};
Store.prototype.subscribe = function (config) {
var _this = this;
var listener = this.storeAdapter.subscribe(function () {
_this.state = _this.storeAdapter.getState();
config(_this, _this.state);
});
this.callbacks.push(config);
if (this.callbacks.length === 1)
this.storeSubscribed();
return function () {
listener();
_this.callbacks = _this.callbacks.filter(function (m) { return m !== config; });
if (_this.callbacks.length === 0)
_this.storeUnsubscribed();
};
};
Store.prototype.loadState = function () {
return __awaiter(this, void 0, void 0, function () {
var loadedState;
return __generator(this, function (_a) {
switch (_a.label) {
case 0:
loadedState = null;
if (!this.storage) return [3 /*break*/, 2];
return [4 /*yield*/, this.storage.load()];
case 1:
loadedState = _a.sent();
_a.label = 2;
case 2:
if (!loadedState)
loadedState = this.state || this.storeAdapter.getState();
this.state = loadedState;
return [2 /*return*/, loadedState];
}
});
});
};
Store.prototype.clear = function () {
return __awaiter(this, void 0, void 0, function () {
return __generator(this, function (_a) {
switch (_a.label) {
case 0:
if (!this.storage) return [3 /*break*/, 2];
return [4 /*yield*/, this.storage.clear()];
case 1:
_a.sent();
_a.label = 2;
case 2: return [2 /*return*/];
}
});
});
};
Store.prototype.get = function (key) {
return this.state[key];
};
Store.prototype.set = function (key, value) {
var state = this.state;
state[key] = value;
this.state = state;
};
Store.prototype.storeInitialized = function () {
// store will mount event)
};
Store.prototype.storeSubscribed = function () {
// store did mount event
};
Store.prototype.storeUnsubscribed = function () {
// store will unmount event
};
return Store;
}());
exports.Store = Store;
//# sourceMappingURL=store.js.map