Every new change

node_modules/rxjs/_esm2015/internal/observable/dom/WebSocketSubject.js

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+import { Subject, AnonymousSubject } from '../../Subject';
+import { Subscriber } from '../../Subscriber';
+import { Observable } from '../../Observable';
+import { Subscription } from '../../Subscription';
+import { ReplaySubject } from '../../ReplaySubject';
+const DEFAULT_WEBSOCKET_CONFIG = {
+    url: '',
+    deserializer: (e) => JSON.parse(e.data),
+    serializer: (value) => JSON.stringify(value),
+};
+const WEBSOCKETSUBJECT_INVALID_ERROR_OBJECT = 'WebSocketSubject.error must be called with an object with an error code, and an optional reason: { code: number, reason: string }';
+export class WebSocketSubject extends AnonymousSubject {
+    constructor(urlConfigOrSource, destination) {
+        super();
+        if (urlConfigOrSource instanceof Observable) {
+            this.destination = destination;
+            this.source = urlConfigOrSource;
+        }
+        else {
+            const config = this._config = Object.assign({}, DEFAULT_WEBSOCKET_CONFIG);
+            this._output = new Subject();
+            if (typeof urlConfigOrSource === 'string') {
+                config.url = urlConfigOrSource;
+            }
+            else {
+                for (let key in urlConfigOrSource) {
+                    if (urlConfigOrSource.hasOwnProperty(key)) {
+                        config[key] = urlConfigOrSource[key];
+                    }
+                }
+            }
+            if (!config.WebSocketCtor && WebSocket) {
+                config.WebSocketCtor = WebSocket;
+            }
+            else if (!config.WebSocketCtor) {
+                throw new Error('no WebSocket constructor can be found');
+            }
+            this.destination = new ReplaySubject();
+        }
+    }
+    lift(operator) {
+        const sock = new WebSocketSubject(this._config, this.destination);
+        sock.operator = operator;
+        sock.source = this;
+        return sock;
+    }
+    _resetState() {
+        this._socket = null;
+        if (!this.source) {
+            this.destination = new ReplaySubject();
+        }
+        this._output = new Subject();
+    }
+    multiplex(subMsg, unsubMsg, messageFilter) {
+        const self = this;
+        return new Observable((observer) => {
+            try {
+                self.next(subMsg());
+            }
+            catch (err) {
+                observer.error(err);
+            }
+            const subscription = self.subscribe(x => {
+                try {
+                    if (messageFilter(x)) {
+                        observer.next(x);
+                    }
+                }
+                catch (err) {
+                    observer.error(err);
+                }
+            }, err => observer.error(err), () => observer.complete());
+            return () => {
+                try {
+                    self.next(unsubMsg());
+                }
+                catch (err) {
+                    observer.error(err);
+                }
+                subscription.unsubscribe();
+            };
+        });
+    }
+    _connectSocket() {
+        const { WebSocketCtor, protocol, url, binaryType } = this._config;
+        const observer = this._output;
+        let socket = null;
+        try {
+            socket = protocol ?
+                new WebSocketCtor(url, protocol) :
+                new WebSocketCtor(url);
+            this._socket = socket;
+            if (binaryType) {
+                this._socket.binaryType = binaryType;
+            }
+        }
+        catch (e) {
+            observer.error(e);
+            return;
+        }
+        const subscription = new Subscription(() => {
+            this._socket = null;
+            if (socket && socket.readyState === 1) {
+                socket.close();
+            }
+        });
+        socket.onopen = (e) => {
+            const { _socket } = this;
+            if (!_socket) {
+                socket.close();
+                this._resetState();
+                return;
+            }
+            const { openObserver } = this._config;
+            if (openObserver) {
+                openObserver.next(e);
+            }
+            const queue = this.destination;
+            this.destination = Subscriber.create((x) => {
+                if (socket.readyState === 1) {
+                    try {
+                        const { serializer } = this._config;
+                        socket.send(serializer(x));
+                    }
+                    catch (e) {
+                        this.destination.error(e);
+                    }
+                }
+            }, (e) => {
+                const { closingObserver } = this._config;
+                if (closingObserver) {
+                    closingObserver.next(undefined);
+                }
+                if (e && e.code) {
+                    socket.close(e.code, e.reason);
+                }
+                else {
+                    observer.error(new TypeError(WEBSOCKETSUBJECT_INVALID_ERROR_OBJECT));
+                }
+                this._resetState();
+            }, () => {
+                const { closingObserver } = this._config;
+                if (closingObserver) {
+                    closingObserver.next(undefined);
+                }
+                socket.close();
+                this._resetState();
+            });
+            if (queue && queue instanceof ReplaySubject) {
+                subscription.add(queue.subscribe(this.destination));
+            }
+        };
+        socket.onerror = (e) => {
+            this._resetState();
+            observer.error(e);
+        };
+        socket.onclose = (e) => {
+            this._resetState();
+            const { closeObserver } = this._config;
+            if (closeObserver) {
+                closeObserver.next(e);
+            }
+            if (e.wasClean) {
+                observer.complete();
+            }
+            else {
+                observer.error(e);
+            }
+        };
+        socket.onmessage = (e) => {
+            try {
+                const { deserializer } = this._config;
+                observer.next(deserializer(e));
+            }
+            catch (err) {
+                observer.error(err);
+            }
+        };
+    }
+    _subscribe(subscriber) {
+        const { source } = this;
+        if (source) {
+            return source.subscribe(subscriber);
+        }
+        if (!this._socket) {
+            this._connectSocket();
+        }
+        this._output.subscribe(subscriber);
+        subscriber.add(() => {
+            const { _socket } = this;
+            if (this._output.observers.length === 0) {
+                if (_socket && _socket.readyState === 1) {
+                    _socket.close();
+                }
+                this._resetState();
+            }
+        });
+        return subscriber;
+    }
+    unsubscribe() {
+        const { _socket } = this;
+        if (_socket && _socket.readyState === 1) {
+            _socket.close();
+        }
+        this._resetState();
+        super.unsubscribe();
+    }
+}
+//# sourceMappingURL=WebSocketSubject.js.map