1 // Copyright (c) 2012 The Chromium Authors. All rights reserved. 2 // Use of this source code is governed by a BSD-style license that can be 3 // found in the LICENSE file. 4 5 #ifndef CONTENT_BROWSER_LOADER_LAYERED_RESOURCE_HANDLER_H_ 6 #define CONTENT_BROWSER_LOADER_LAYERED_RESOURCE_HANDLER_H_ 7 8 #include "base/memory/scoped_ptr.h" 9 #include "content/browser/loader/resource_handler.h" 10 #include "content/common/content_export.h" 11 12 namespace net { 13 class URLRequest; 14 } // namespace net 15 16 namespace content { 17 18 // A ResourceHandler that simply delegates all calls to a next handler. This 19 // class is intended to be subclassed. 20 class CONTENT_EXPORT LayeredResourceHandler : public ResourceHandler { 21 public: 22 LayeredResourceHandler(net::URLRequest* request, 23 scoped_ptr<ResourceHandler> next_handler); 24 virtual ~LayeredResourceHandler(); 25 26 // ResourceHandler implementation: 27 virtual void SetController(ResourceController* controller) OVERRIDE; 28 virtual bool OnUploadProgress(int request_id, uint64 position, 29 uint64 size) OVERRIDE; 30 virtual bool OnRequestRedirected(int request_id, const GURL& url, 31 ResourceResponse* response, 32 bool* defer) OVERRIDE; 33 virtual bool OnResponseStarted(int request_id, 34 ResourceResponse* response, 35 bool* defer) OVERRIDE; 36 virtual bool OnWillStart(int request_id, const GURL& url, 37 bool* defer) OVERRIDE; 38 virtual bool OnWillRead(int request_id, 39 scoped_refptr<net::IOBuffer>* buf, 40 int* buf_size, 41 int min_size) OVERRIDE; 42 virtual bool OnReadCompleted(int request_id, int bytes_read, 43 bool* defer) OVERRIDE; 44 virtual void OnResponseCompleted(int request_id, 45 const net::URLRequestStatus& status, 46 const std::string& security_info, 47 bool* defer) OVERRIDE; 48 virtual void OnDataDownloaded(int request_id, int bytes_downloaded) OVERRIDE; 49 50 scoped_ptr<ResourceHandler> next_handler_; 51 }; 52 53 } // namespace content 54 55 #endif // CONTENT_BROWSER_LOADER_LAYERED_RESOURCE_HANDLER_H_ 56
