Method constructor

src/browser/utils/workerChannel.ts:128–156

(options: WorkerChannelOptions)

  #controller: AbortController

  constructor(options: WorkerChannelOptions) {
    super()

    invariant(
      SUPPORTS_SERVICE_WORKER,
      'Failed to open a WorkerChannel: Service Worker is not supported in this environment.',
    )

    this.#getWorker = options.getWorker
    this.#controller = new AbortController()

    navigator.serviceWorker.addEventListener(
      'message',
      async (event) => {
        const worker = await this.#getWorker()

        if (event.source != null && event.source !== worker) {
          return
        }

        if (event.data && isObject(event.data) && 'type' in event.data) {
          this.emit(new WorkerEvent<any, any, any>(event))
        }
      },
      {
        signal: this.#controller.signal,
      },
    )
  }

  /**
   * Send data to the Service Worker controlling this client.