third_party/blink/public/platform/modules/service_worker/web_service_worker_network_provider.h

/*
 * Copyright (C) 2014 Google Inc. All rights reserved.
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 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are
 * met:
 *
 *     * Redistributions of source code must retain the above copyright
 * notice, this list of conditions and the following disclaimer.
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 * copyright notice, this list of conditions and the following disclaimer
 * in the documentation and/or other materials provided with the
 * distribution.
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 * contributors may be used to endorse or promote products derived from
 * this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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#ifndef THIRD_PARTY_BLINK_PUBLIC_PLATFORM_MODULES_SERVICE_WORKER_WEB_SERVICE_WORKER_NETWORK_PROVIDER_H_
#define THIRD_PARTY_BLINK_PUBLIC_PLATFORM_MODULES_SERVICE_WORKER_WEB_SERVICE_WORKER_NETWORK_PROVIDER_H_

#include <memory>

#include "base/memory/scoped_refptr.h"
#include "third_party/blink/public/mojom/service_worker/service_worker_object.mojom-shared.h"
#include "third_party/blink/public/platform/scheduler/web_resource_loading_task_runner_handle.h"
#include "third_party/blink/public/platform/web_url_loader.h"

namespace blink {

class WebURLRequest;

// This interface is implemented by the embedder and is only called on the main
// thread. Currently the embedder has implementations for service worker clients
// (frames and shared workers), and service workers themselves.
//
// An instance of this class is owned by the associated loading context, e.g.
// DocumentLoader.
class WebServiceWorkerNetworkProvider {
 public:
  virtual ~WebServiceWorkerNetworkProvider() = default;

  // A request is about to be sent out, and the embedder may modify it. The
  // request is writable, and changes to the URL, for example, will change the
  // request made.
  virtual void WillSendRequest(WebURLRequest&) {}

  // Returns an identifier of this provider.
  virtual int ProviderID() const { return -1; }

  // For service worker clients.
  virtual blink::mojom::ControllerServiceWorkerMode
  IsControlledByServiceWorker() {
    return blink::mojom::ControllerServiceWorkerMode::kNoController;
  }

  // For service worker clients. Returns an identifier of the controller service
  // worker associated with the loading context.
  virtual int64_t ControllerServiceWorkerID() { return -1; }

  // S13nServiceWorker:
  // Returns a URLLoader for the associated context. May return nullptr
  // if this doesn't provide a ServiceWorker specific URLLoader.
  virtual std::unique_ptr<WebURLLoader> CreateURLLoader(
      const WebURLRequest& request,
      std::unique_ptr<scheduler::WebResourceLoadingTaskRunnerHandle>) {
    return nullptr;
  }

  // For service worker clients. Called when IdlenessDetector emits its network
  // idle signal.
  virtual void DispatchNetworkQuiet() {}
};

}  // namespace blink

#endif  // THIRD_PARTY_BLINK_PUBLIC_PLATFORM_MODULES_SERVICE_WORKER_WEB_SERVICE_WORKER_NETWORK_PROVIDER_H_