@dabapps/roe/dist/js/store.js

A collection of React components, styles, mixins, and atomic CSS classes to aid with the development of web applications.

"use strict";
var __assign = (this && this.__assign) || function () {
    __assign = Object.assign || function(t) {
        for (var s, i = 1, n = arguments.length; i < n; i++) {
            s = arguments[i];
            for (var p in s) if (Object.prototype.hasOwnProperty.call(s, p))
                t[p] = s[p];
        }
        return t;
    };
    return __assign.apply(this, arguments);
};
Object.defineProperty(exports, "__esModule", { value: true });
exports.Store = void 0;
var React = require("react");
var Store = /** @class */ (function () {
    function Store(initialState) {
        var _this = this;
        if (initialState === void 0) { initialState = {}; }
        this.state = {};
        this.listeners = [];
        this.setState = function (state) {
            _this.state = __assign(__assign({}, _this.state), state);
            _this.listeners.forEach(function (listener) {
                listener(__assign({}, _this.state));
            });
        };
        this.getState = function () {
            return __assign({}, _this.state);
        };
        this.subscribe = function (listener) {
            if (_this.listeners.indexOf(listener) < 0) {
                _this.listeners.push(listener);
            }
            return _this.createUnsubscriber(listener);
        };
        this.createUnsubscriber = function (listener) { return function () {
            var index = _this.listeners.indexOf(listener);
            if (index >= 0) {
                _this.listeners.splice(index, 1);
            }
        }; };
        this.useState = function () {
            var _a = React.useState(_this.getState()), state = _a[0], setState = _a[1];
            React.useEffect(function () {
                var unsubscribe = _this.subscribe(setState);
                return unsubscribe;
            }, []);
            return state;
        };
        this.state = initialState;
    }
    return Store;
}());
exports.Store = Store;
exports.default = new Store();
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