reactive-state/react/connect.js

"use strict";
var __extends = (this && this.__extends) || (function () {
    var extendStatics = function (d, b) {
        extendStatics = Object.setPrototypeOf ||
            ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
        return extendStatics(d, b);
    };
    return function (d, b) {
        extendStatics(d, b);
        function __() { this.constructor = d; }
        d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());
    };
})();
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 });
var React = require("react");
var rxjs_1 = require("rxjs");
var provider_1 = require("./provider");
var actions_1 = require("./actions");
var operators_1 = require("rxjs/operators");
/**
 * Connects a Component's props to a set of props of the application state coming from a Store object.
 */
// TODO: earlier TS version could infer TOriginalProps, why is this not working anymore? Bug in TS?
// possible candidate: https://github.com/Microsoft/TypeScript/issues/21734
function connect(ComponentToConnect, connectCallback) {
    var ConnectedComponent = /** @class */ (function (_super) {
        __extends(ConnectedComponent, _super);
        function ConnectedComponent(props) {
            var _this = _super.call(this, props) || this;
            _this.subscription = new rxjs_1.Subscription();
            _this.actionProps = {};
            _this.inputProps = new rxjs_1.ReplaySubject(1);
            _this.state = {
                connectedProps: undefined,
                ready: false,
            };
            _this.inputProps.next(_this.getProps());
            _this.subscription.add(function () { return _this.inputProps.complete(); });
            if (_this.props.reactiveStateStore) {
                _this.store = _this.props.reactiveStateStore.clone();
                // TODO this hack is necesseary because we seem to have a bug in the destroy logic for clones
                _this.parentDestroyed = _this.props.reactiveStateStore.destroyed;
            }
            _this.connect();
            return _this;
        }
        ConnectedComponent.prototype.connect = function () {
            if (this.store === undefined)
                return;
            this.connectResult = connectCallback(this.store, this.inputProps.asObservable());
            if (this.connectResult.actionMap) {
                this.actionProps = actions_1.assembleActionProps(this.connectResult.actionMap);
            }
        };
        ConnectedComponent.prototype.subscribeToStateChanges = function () {
            var _this = this;
            if (this.store === undefined)
                return;
            var connectResult = this.connectResult;
            if (connectResult.props) {
                this.subscription.add(connectResult.props.pipe(operators_1.takeUntil(this.parentDestroyed)).subscribe(function (connectedProps) {
                    _this.setState(function (prevState) {
                        return __assign(__assign({}, prevState), { connectedProps: connectedProps, ready: true });
                    });
                }));
            }
            else {
                this.setState(function (prevState) { return ({ ready: true }); });
            }
        };
        /**
         * We need to remove the remoteReacticeState properties from our input props; the remainder input props
         * are passed down to the connected component
         */
        ConnectedComponent.prototype.getProps = function () {
            var props = __assign({}, this.props);
            delete props.reactiveStateStore;
            return props;
        };
        ConnectedComponent.prototype.componentWillUnmount = function () {
            if (this.store !== undefined) {
                this.store.destroy();
            }
            this.subscription.unsubscribe();
        };
        ConnectedComponent.prototype.componentDidMount = function () {
            this.subscribeToStateChanges();
        };
        ConnectedComponent.prototype.componentDidUpdate = function (prevProps) {
            if (prevProps !== this.props) {
                this.inputProps.next(this.getProps());
            }
        };
        ConnectedComponent.prototype.render = function () {
            var props = this.getProps();
            if (this.store === undefined || this.state.ready === true) {
                return (React.createElement(ComponentToConnect, __assign({}, this.state.connectedProps, this.actionProps, props)));
            }
            else {
                return null;
            }
        };
        return ConnectedComponent;
    }(React.Component));
    return /** @class */ (function (_super) {
        __extends(class_1, _super);
        function class_1(props) {
            return _super.call(this, props) || this;
        }
        class_1.prototype.render = function () {
            var _this = this;
            return (React.createElement(provider_1.StoreConsumer, null, function (value) { return React.createElement(ConnectedComponent, __assign({ reactiveStateStore: value }, _this.props)); }));
        };
        return class_1;
    }(React.Component));
}
exports.connect = connect;
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