third_party/blink/public/mojom/service_worker/dispatch_fetch_event_params.mojom

// Copyright 2018 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

module blink.mojom;

import "services/network/public/mojom/url_loader.mojom";
import "third_party/blink/public/mojom/blob/blob.mojom";
import "third_party/blink/public/mojom/fetch/fetch_api_request.mojom";

// Used for service worker navigation preload, to create
// FetchEvent#preloadResponse.
struct FetchEventPreloadHandle {
  network.mojom.URLLoader url_loader;
  network.mojom.URLLoaderClient& url_loader_client_request;
};

// Parameters used for dispatching a FetchEvent.
struct DispatchFetchEventParams {
  // FetchEvent#request.
  FetchAPIRequest request;

  // The following fields are used to create FetchEvent#request#body, depending
  // on whether S13nServiceWorker/NetworkService are enabled.

  // (A) S13nServiceWorker with NetworkService on:
  // All information about the request body is provided in |request.body|, and
  // |request.blob| is null.

  // (B) S13nServiceWorker with NetworkService off:
  // All information about the request body except for BlobPtrs is provided in
  // |request.body|. These BlobPtrs need to be passed separately.
  // Once the NetworkService is enabled, this will be no longer used since all
  // Blobs are passed as data pipes which can live in |request.body|.
  array<Blob> request_body_blob_ptrs;

  // (C) non-S13nServiceWorker:
  // All information to create the request body is packed into |request.blob|,
  // and |request.body| is null.

  // FetchEvent#clientId.
  string client_id;
  // FetchEvent#preloadResponse.
  FetchEventPreloadHandle? preload_handle;
};