218 lines
7.7 KiB
JavaScript
218 lines
7.7 KiB
JavaScript
/** PURE_IMPORTS_START tslib,_.._Subject,_.._Subscriber,_.._Observable,_.._Subscription,_.._ReplaySubject PURE_IMPORTS_END */
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import * as tslib_1 from "tslib";
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import { Subject, AnonymousSubject } from '../../Subject';
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import { Subscriber } from '../../Subscriber';
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import { Observable } from '../../Observable';
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import { Subscription } from '../../Subscription';
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import { ReplaySubject } from '../../ReplaySubject';
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var DEFAULT_WEBSOCKET_CONFIG = {
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url: '',
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deserializer: function (e) { return JSON.parse(e.data); },
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serializer: function (value) { return JSON.stringify(value); },
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};
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var WEBSOCKETSUBJECT_INVALID_ERROR_OBJECT = 'WebSocketSubject.error must be called with an object with an error code, and an optional reason: { code: number, reason: string }';
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var WebSocketSubject = /*@__PURE__*/ (function (_super) {
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tslib_1.__extends(WebSocketSubject, _super);
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function WebSocketSubject(urlConfigOrSource, destination) {
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var _this = _super.call(this) || this;
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if (urlConfigOrSource instanceof Observable) {
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_this.destination = destination;
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_this.source = urlConfigOrSource;
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}
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else {
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var config = _this._config = tslib_1.__assign({}, DEFAULT_WEBSOCKET_CONFIG);
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_this._output = new Subject();
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if (typeof urlConfigOrSource === 'string') {
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config.url = urlConfigOrSource;
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}
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else {
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for (var key in urlConfigOrSource) {
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if (urlConfigOrSource.hasOwnProperty(key)) {
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config[key] = urlConfigOrSource[key];
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}
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}
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}
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if (!config.WebSocketCtor && WebSocket) {
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config.WebSocketCtor = WebSocket;
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}
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else if (!config.WebSocketCtor) {
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throw new Error('no WebSocket constructor can be found');
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}
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_this.destination = new ReplaySubject();
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}
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return _this;
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}
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WebSocketSubject.prototype.lift = function (operator) {
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var sock = new WebSocketSubject(this._config, this.destination);
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sock.operator = operator;
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sock.source = this;
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return sock;
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};
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WebSocketSubject.prototype._resetState = function () {
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this._socket = null;
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if (!this.source) {
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this.destination = new ReplaySubject();
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}
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this._output = new Subject();
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};
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WebSocketSubject.prototype.multiplex = function (subMsg, unsubMsg, messageFilter) {
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var self = this;
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return new Observable(function (observer) {
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try {
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self.next(subMsg());
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}
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catch (err) {
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observer.error(err);
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}
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var subscription = self.subscribe(function (x) {
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try {
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if (messageFilter(x)) {
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observer.next(x);
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}
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}
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catch (err) {
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observer.error(err);
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}
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}, function (err) { return observer.error(err); }, function () { return observer.complete(); });
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return function () {
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try {
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self.next(unsubMsg());
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}
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catch (err) {
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observer.error(err);
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}
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subscription.unsubscribe();
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};
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});
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};
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WebSocketSubject.prototype._connectSocket = function () {
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var _this = this;
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var _a = this._config, WebSocketCtor = _a.WebSocketCtor, protocol = _a.protocol, url = _a.url, binaryType = _a.binaryType;
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var observer = this._output;
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var socket = null;
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try {
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socket = protocol ?
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new WebSocketCtor(url, protocol) :
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new WebSocketCtor(url);
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this._socket = socket;
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if (binaryType) {
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this._socket.binaryType = binaryType;
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}
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}
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catch (e) {
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observer.error(e);
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return;
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}
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var subscription = new Subscription(function () {
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_this._socket = null;
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if (socket && socket.readyState === 1) {
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socket.close();
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}
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});
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socket.onopen = function (e) {
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var _socket = _this._socket;
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if (!_socket) {
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socket.close();
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_this._resetState();
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return;
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}
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var openObserver = _this._config.openObserver;
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if (openObserver) {
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openObserver.next(e);
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}
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var queue = _this.destination;
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_this.destination = Subscriber.create(function (x) {
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if (socket.readyState === 1) {
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try {
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var serializer = _this._config.serializer;
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socket.send(serializer(x));
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}
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catch (e) {
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_this.destination.error(e);
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}
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}
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}, function (e) {
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var closingObserver = _this._config.closingObserver;
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if (closingObserver) {
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closingObserver.next(undefined);
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}
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if (e && e.code) {
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socket.close(e.code, e.reason);
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}
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else {
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observer.error(new TypeError(WEBSOCKETSUBJECT_INVALID_ERROR_OBJECT));
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}
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_this._resetState();
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}, function () {
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var closingObserver = _this._config.closingObserver;
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if (closingObserver) {
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closingObserver.next(undefined);
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}
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socket.close();
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_this._resetState();
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});
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if (queue && queue instanceof ReplaySubject) {
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subscription.add(queue.subscribe(_this.destination));
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}
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};
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socket.onerror = function (e) {
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_this._resetState();
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observer.error(e);
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};
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socket.onclose = function (e) {
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_this._resetState();
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var closeObserver = _this._config.closeObserver;
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if (closeObserver) {
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closeObserver.next(e);
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}
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if (e.wasClean) {
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observer.complete();
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}
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else {
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observer.error(e);
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}
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};
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socket.onmessage = function (e) {
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try {
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var deserializer = _this._config.deserializer;
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observer.next(deserializer(e));
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}
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catch (err) {
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observer.error(err);
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}
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};
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};
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WebSocketSubject.prototype._subscribe = function (subscriber) {
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var _this = this;
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var source = this.source;
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if (source) {
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return source.subscribe(subscriber);
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}
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if (!this._socket) {
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this._connectSocket();
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}
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this._output.subscribe(subscriber);
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subscriber.add(function () {
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var _socket = _this._socket;
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if (_this._output.observers.length === 0) {
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if (_socket && _socket.readyState === 1) {
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_socket.close();
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}
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_this._resetState();
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}
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});
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return subscriber;
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};
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WebSocketSubject.prototype.unsubscribe = function () {
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var _socket = this._socket;
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if (_socket && _socket.readyState === 1) {
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_socket.close();
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}
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this._resetState();
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_super.prototype.unsubscribe.call(this);
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};
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return WebSocketSubject;
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}(AnonymousSubject));
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export { WebSocketSubject };
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//# sourceMappingURL=WebSocketSubject.js.map
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