ParentWindowGlobalTarget(browsingContextID) {
    const id = await this.getParentBrowsingContextID(browsingContextID);
    if (!id) {
      return null;
    }
    return this.getWindowGlobalTarget(id);
  }

  /**
   * Memoized getter for the "blackboxing" actor
   */
  async getBlackboxingActor() {
    if (!this._blackboxingActor) {
      this._blackboxingActor = await super.getBlackboxingActor();
    }
    return this._blackboxingActor;
  }
  /**
   * Memoized getter for the "breakpoint-list" actor
   */
  async getBreakpointListActor() {
    if (!this._breakpointListActor) {
      this._breakpointListActor = await super.getBreakpointListActor();
    }
    return this._breakpointListActor;
  }

  /**
   * Memoized getter for the "target-configuration" actor
   */
  async getTargetConfigurationActor() {
    if (!this._targetConfigurationActor) {
      this._targetConfigurationActor =
        await super.getTargetConfigurationActor();
    }
    return this._targetConfigurationActor;
  }

  /**
   * Memoized getter for the "thread-configuration" actor
   */
  async getThreadConfigurationActor() {
    if (!this._threadConfigurationActor) {
      this._threadConfigurationActor =
        await super.getThreadConfigurationActor();
    }
    return this._threadConfigurationActor;
  }

  /**
   * For a given BrowsingContext ID, return the already existing WindowGlobalTargetFront
   */
  async getWindowGlobalTarget(id) {
    // First scan the watcher children as the watcher manages all the targets
    for (const front of this.poolChildren()) {
      if (front.browsingContextID == id) {
        return front;
      }
    }
    // But the top level target will be created by the Descriptor.getTarget() method
    // and so be hosted in the Descriptor's pool.
    // The parent front of the WatcherActor happens to be the Descriptor Actor.
    // This code could go away or be simplified if the Descriptor starts fetch all
    // the targets, including the top level one via the Watcher. i.e. drop Descriptor.getTarget().
    const topLevelTarget = await this.parentFront.getTarget();
    if (topLevelTarget?.browsingContextID == id) {
      return topLevelTarget;
    }

    // If we could not find a window global target for the provided id, the
    // window global might not be the topmost one of a given process (isProcessRoot == true).
    // For now we only create targets for the top window global of each process,
    // so we recursively check the parent browsing context ids
    // until we find a valid target.
    const parentBrowsingContextID = await this.getParentBrowsingContextID(id);
    if (parentBrowsingContextID && parentBrowsingContextID !== id) {
      return this.getWindowGlobalTarget(parentBrowsingContextID);
    }

    return null;
  }

  getWindowGlobalTargetByInnerWindowId(innerWindowId) {
    for (const front of this.poolChildren()) {
      if (front.innerWindowId == innerWindowId) {
        return front;
      }
    }
    // Use getCachedTarget in order to have a fully synchronous method
    // as the callsite in ResourceCommand benefit from being synchronous.
    // Here we care only about already existing resource and do not need to
    // wait for the next target to come.
    const topLevelTarget = this.parentFront.getCachedTarget();
    if (topLevelTarget?.innerWindowId == innerWindowId) {
      return topLevelTarget;
    }
    console.error("Unable to find target with innerWindowId:" + innerWindowId);
    return null;
  }

  /**
   * Memoized getter for the "networkParent" actor
   */
  async getNetworkParentActor() {
    if (!this._networkParentActor) {
      this._networkParentActor = await super.getNetworkParentActor();
    }
    return this._networkParentActor;
  }
}
registerFront(WatcherFront);
PK