| // 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 "content/common/content_export.h" |
| |
| namespace net { |
| struct RedirectInfo; |
| } |
| |
| namespace content { |
| |
| class NavigationData; |
| class StreamHandle; |
| struct GlobalRequestID; |
| struct ResourceResponse; |
| struct SSLStatus; |
| |
| // PlzNavigate: 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<ResourceResponse>& response) = 0; |
| |
| // Called when the request receives its response. No further calls will be |
| // made to the delegate. The response body is returned as a stream in |
| // |body_stream|. |navigation_data| is passed to the NavigationHandle. |
| virtual void OnResponseStarted( |
| const scoped_refptr<ResourceResponse>& response, |
| std::unique_ptr<StreamHandle> body_stream, |
| const SSLStatus& ssl_status, |
| std::unique_ptr<NavigationData> navigation_data, |
| const GlobalRequestID& request_id, |
| bool is_download, |
| bool is_stream) = 0; |
| |
| // Called if the request fails before receving a response. |net_error| is a |
| // network error code for the failure. |has_stale_copy_in_cache| is true if |
| // there is a stale copy of the unreachable page in cache. |
| virtual void OnRequestFailed(bool has_stale_copy_in_cache, int net_error) = 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_ |