biofriction-wp-theme/node_modules/rxjs/observable/dom/WebSocketSubject.js.map

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{ Subject, AnonymousSubject } from '../../Subject';\nimport { Subscriber } from '../../Subscriber';\nimport { Observable } from '../../Observable';\nimport { Subscription } from '../../Subscription';\nimport { Operator } from '../../Operator';\nimport { root } from '../../util/root';\nimport { ReplaySubject } from '../../ReplaySubject';\nimport { Observer, NextObserver } from '../../Observer';\nimport { tryCatch } from '../../util/tryCatch';\nimport { errorObject } from '../../util/errorObject';\nimport { assign } from '../../util/assign';\n\nexport interface WebSocketSubjectConfig {\n  url: string;\n  protocol?: string | Array<string>;\n  resultSelector?: <T>(e: MessageEvent) => T;\n  openObserver?: NextObserver<Event>;\n  closeObserver?: NextObserver<CloseEvent>;\n  closingObserver?: NextObserver<void>;\n  WebSocketCtor?: { new(url: string, protocol?: string|Array<string>): WebSocket };\n  binaryType?: 'blob' | 'arraybuffer';\n}\n\n/**\n * We need this JSDoc comment for affecting ESDoc.\n * @extends {Ignored}\n * @hide true\n */\nexport class WebSocketSubject<T> extends AnonymousSubject<T> {\n\n  url: string;\n  protocol: string|Array<string>;\n  socket: WebSocket;\n  openObserver: NextObserver<Event>;\n  closeObserver: NextObserver<CloseEvent>;\n  closingObserver: NextObserver<void>;\n  WebSocketCtor: { new(url: string, protocol?: string|Array<string>): WebSocket };\n  binaryType?: 'blob' | 'arraybuffer';\n\n  private _output: Subject<T>;\n\n  resultSelector(e: MessageEvent) {\n    return JSON.parse(e.data);\n  }\n\n  /**\n   * Wrapper around the w3c-compatible WebSocket object provided by the browser.\n   *\n   * @example <caption>Wraps browser WebSocket</caption>\n   *\n   * let socket$ = Observable.webSocket('ws://localhost:8081');\n   *\n   * socket$.subscribe(\n   *    (msg) => console.log('message received: ' + msg),\n   *    (err) => console.log(err),\n   *    () => console.log('complete')\n   *  );\n   *\n   * socket$.next(JSON.stringify({ op: 'hello' }));\n   *\n   * @example <caption>Wraps WebSocket from nodejs-websocket (using node.js)</caption>\n   *\n   * import { w3cwebsocket } from 'websocket';\n   *\n   * let socket$ = Observable.webSocket({\n   *   url: 'ws://localhost:8081',\n   *   WebSocketCtor: w3cwebsocket\n   * });\n   *\n   * socket$.subscribe(\n   *    (msg) => console.log('message received: ' + msg),\n   *    (err) => console.log(err),\n   *    () => console.log('complete')\n   *  );\n   *\n   * socket$.next(JSON.stringify({ op: 'hello' }));\n   *\n   * @param {string | WebSocketSubjectConfig} urlConfigOrSource the source of the websocket as an url or a structure defining the websocket object\n   * @return {WebSocketSubject}\n   * @static true\n   * @name webSocket\n   * @owner Observable\n   */\n  static create<T>(urlConfigOrSource: string | WebSocketSubjectConfig): WebSocketSubject<T> {\n    return new WebSocketSubject<T>(urlConfigOrSource);\n  }\n\n  constructor(urlConfigOrSource: string | WebSocketSubjectConfig | Observable<T>, destination?: Observer<T>) {\n    if (urlConfigOrSource instanceof Observable) {\n      super(destination, <Observable<T>> urlConfigOrSource);\n    } else {\n      super();\n      this.WebSocketCtor = root.WebSocket;\n      this._output = new Subject<T>();\n      if (typeof urlConfigOrSource === 'string') {\n        this.url = urlConfigOrSource;\n      } else {\n        // WARNING: config object could override important members here.\n        assign(this, urlConfigOrSource);\n      }\n      if (!this.WebSocketCtor) {\n        throw new Error('no WebSocket constructor can be found');\n      }\n      this.destination = new ReplaySubject();\n    }\n  }\n\n  lift<R>(operator: Operator<T, R>): WebSocketSubject<R> {\n    const sock = new WebSocketSubject<R>(this, <any> this.destination);\n    sock.operator = operator;\n    return sock;\n  }\n\n  private _resetState() {\n    this.socket = null;\n    if (!this.source) {\n      this.destination = new ReplaySubject();\n    }\n    this._output = new Subject<T>();\n  }\n\n  // TODO: factor this out to be a proper Operator/Subscriber implementation and eliminate closures\n  multiplex(subMsg: () => any, unsubMsg: () => any, messageFilter: (value: T) => boolean) {\n    const self = this;\n    return new Observable((observer: Observer<any>) => {\n      const result = tryCatch(subMsg)();\n      if (result === errorObject) {\n        observer.error(errorObject.e);\n      } else {\n        self.next(result);\n      }\n\n      let subscription = self.subscribe(x => {\n        const result = tryCatch(messageFilter)(x);\n        if (result === errorObject) {\n          observer.error(errorObject.e);\n        } else if (result) {\n          observer.next(x);\n        }\n      },\n        err => observer.error(err),\n        () => observer.complete());\n\n      return () => {\n        const result = tryCatch(unsubMsg)();\n        if (result === errorObject) {\n          observer.error(errorObject.e);\n        } else {\n          self.next(result);\n        }\n        subscription.unsubscribe();\n      };\n    });\n  }\n\n  private _connectSocket() {\n    const { WebSocketCtor } = this;\n    const observer = this._output;\n\n    let socket: WebSocket = null;\n    try {\n      socket = this.protocol ?\n        new WebSocketCtor(this.url, this.protocol) :\n        new WebSocketCtor(this.url);\n      this.socket = socket;\n      if (this.binaryType) {\n        this.socket.binaryType = this.binaryType;\n      }\n    } catch (e) {\n      observer.error(e);\n      return;\n    }\n\n    const subscription = new Subscription(() => {\n      this.socket = null;\n      if (socket && socket.readyState === 1) {\n        socket.close();\n      }\n    });\n\n    socket.onopen = (e: Event) => {\n      const openObserver = this.openObserver;\n      if (openObserver) {\n        openObserver.next(e);\n      }\n\n      const queue = this.destination;\n\n      this.destination = Subscriber.create(\n        (x) => socket.readyState === 1 && socket.send(x),\n        (e) => {\n          const closingObserver = this.closingObserver;\n          if (closingObserver) {\n            closingObserver.next(undefined);\n          }\n          if (e && e.code) {\n            socket.close(e.code, e.reason);\n          } else {\n            observer.error(new TypeError('WebSocketSubject.error must be called with an object with an error code, ' +\n              'and an optional reason: { code: number, reason: string }'));\n          }\n          this._resetState();\n        },\n        ( ) => {\n          const closingObserver = this.closingObserver;\n          if (closingObserver) {\n            closingObserver.next(undefined);\n          }\n          socket.close();\n          this._resetState();\n        }\n      );\n\n      if (queue && queue instanceof ReplaySubject) {\n        subscription.add((<ReplaySubject<T>>queue).subscribe(this.destination));\n      }\n    };\n\n    socket.onerror = (e: Event) => {\n      this._resetState();\n      observer.error(e);\n    };\n\n    socket.onclose = (e: CloseEvent) => {\n      this._resetState();\n      const closeObserver = this.closeObserver;\n      if (closeObserver) {\n        closeObserver.next(e);\n      }\n      if (e.wasClean) {\n        observer.complete();\n      } else {\n        observer.error(e);\n      }\n    };\n\n    socket.onmessage = (e: MessageEvent) => {\n      const result = tryCatch(this.resultSelector)(e);\n      if (result === errorObject) {\n        observer.error(errorObject.e);\n      } else {\n        observer.next(result);\n      }\n    };\n  }\n\n  /** @deprecated internal use only */ _subscribe(subscriber: Subscriber<T>): Subscription {\n    const { source } = this;\n    if (source) {\n      return source.subscribe(subscriber);\n    }\n    if (!this.socket) {\n      this._connectSocket();\n    }\n    let subscription = new Subscription();\n    subscription.add(this._output.subscribe(subscriber));\n    subscription.add(() => {\n      const { socket } = this;\n      if (this._output.observers.length === 0) {\n        if (socket && socket.readyState === 1) {\n          socket.close();\n        }\n        this._resetState();\n      }\n    });\n    return subscription;\n  }\n\n  unsubscribe() {\n    const { source, socket } = this;\n    if (socket && socket.readyState === 1) {\n      socket.close();\n      this._resetState();\n    }\n    super.unsubscribe();\n    if (!source) {\n      this.destination = new ReplaySubject();\n    }\n  }\n}\n"]}