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// Copyright 2014 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.
#ifndef CONTENT_BROWSER_LOADER_NAVIGATION_URL_LOADER_DELEGATE_H_
#define CONTENT_BROWSER_LOADER_NAVIGATION_URL_LOADER_DELEGATE_H_
#include <memory>
#include "base/macros.h"
#include "base/memory/ref_counted.h"
#include "base/optional.h"
#include "content/common/content_export.h"
#include "services/network/public/mojom/url_loader.mojom.h"
namespace net {
struct RedirectInfo;
}
namespace network {
struct ResourceResponse;
struct URLLoaderCompletionStatus;
}
namespace content {
class NavigationData;
struct GlobalRequestID;
struct SubresourceLoaderParams;
// The delegate interface to NavigationURLLoader.
class CONTENT_EXPORT NavigationURLLoaderDelegate {
public:
// Called when the request is redirected. Call FollowRedirect to continue
// processing the request.
virtual void OnRequestRedirected(
const net::RedirectInfo& redirect_info,
const scoped_refptr<network::ResourceResponse>& response) = 0;
// Called when the request receives its response. No further calls will be
// made to the delegate. The response body can be retrieved by implementing an
// URLLoaderClient and binding the |url_loader_client_endpoints|.
// |navigation_data| is passed to the NavigationHandle.
// |subresource_loader_params| is used in the network service only for passing
// necessary info to create a custom subresource loader in the renderer
// process if the navigated context is controlled by a request interceptor
// like AppCache or ServiceWorker.
virtual void OnResponseStarted(
const scoped_refptr<network::ResourceResponse>& response,
network::mojom::URLLoaderClientEndpointsPtr url_loader_client_endpoints,
std::unique_ptr<NavigationData> navigation_data,
const GlobalRequestID& request_id,
bool is_download,
bool is_stream,
base::Optional<SubresourceLoaderParams> subresource_loader_params) = 0;
// Called if the request fails before receving a response. Specific
// fields which are used: |status.error_code| holds the error code
// for the failure; |status.extended_error_code| holds details if
// available; |status.exists_in_cache| indicates a stale cache
// entry; |status.ssl_info| is available when |status.error_code| is
// a certificate error.
virtual void OnRequestFailed(
const network::URLLoaderCompletionStatus& status) = 0;
// Called after the network request has begun on the IO thread at time
// |timestamp|. This is just a thread hop but is used to compare timing
// against the pre-PlzNavigate codepath which didn't start the network request
// until after the renderer was initialized.
virtual void OnRequestStarted(base::TimeTicks timestamp) = 0;
protected:
NavigationURLLoaderDelegate() {}
virtual ~NavigationURLLoaderDelegate() {}
private:
DISALLOW_COPY_AND_ASSIGN(NavigationURLLoaderDelegate);
};
} // namespace content
#endif // CONTENT_BROWSER_LOADER_NAVIGATION_URL_LOADER_DELEGATE_H_
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