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(uint64 position, uint64 size) OVERRIDE; 29 virtual bool OnRequestRedirected(const GURL& url, 30 ResourceResponse* response, 31 bool* defer) OVERRIDE; 32 virtual bool OnResponseStarted(ResourceResponse* response, 33 bool* defer) OVERRIDE; 34 virtual bool OnWillStart(const GURL& url, bool* defer) OVERRIDE; 35 virtual bool OnBeforeNetworkStart(const GURL& url, bool* defer) OVERRIDE; 36 virtual bool OnWillRead(scoped_refptr<net::IOBuffer>* buf, 37 int* buf_size, 38 int min_size) OVERRIDE; 39 virtual bool OnReadCompleted(int bytes_read, 40 bool* defer) OVERRIDE; 41 virtual void OnResponseCompleted(const net::URLRequestStatus& status, 42 const std::string& security_info, 43 bool* defer) OVERRIDE; 44 virtual void OnDataDownloaded(int bytes_downloaded) OVERRIDE; 45 46 scoped_ptr<ResourceHandler> next_handler_; 47 }; 48 49 } // namespace content 50 51 #endif // CONTENT_BROWSER_LOADER_LAYERED_RESOURCE_HANDLER_H_ 52