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 NET_URL_REQUEST_URL_FETCHER_DELEGATE_H_ 6 #define NET_URL_REQUEST_URL_FETCHER_DELEGATE_H_ 7 8 #include <string> 9 10 #include "base/basictypes.h" 11 #include "base/memory/scoped_ptr.h" 12 #include "net/base/net_export.h" 13 14 namespace net { 15 16 class URLFetcher; 17 18 // A delegate interface for users of URLFetcher. 19 class NET_EXPORT URLFetcherDelegate { 20 public: 21 // This will be called when the URL has been fetched, successfully or not. 22 // Use accessor methods on |source| to get the results. 23 virtual void OnURLFetchComplete(const URLFetcher* source) = 0; 24 25 // This will be called when some part of the response is read. |current| 26 // denotes the number of bytes received up to the call, and |total| is the 27 // expected total size of the response (or -1 if not determined). 28 virtual void OnURLFetchDownloadProgress(const URLFetcher* source, 29 int64 current, int64 total); 30 31 // This will be called when some part of the response is read. 32 // |download_data| contains the current bytes received since the last call. 33 // This will be called after ShouldSendDownloadData() and only if the latter 34 // returns true. 35 virtual void OnURLFetchDownloadData(const URLFetcher* source, 36 scoped_ptr<std::string> download_data); 37 38 // This indicates if OnURLFetchDownloadData should be called. 39 // This will be called before OnURLFetchDownloadData is called, and only if 40 // this returns true. 41 // Default implementation is false. 42 virtual bool ShouldSendDownloadData(); 43 44 // This will be called when uploading of POST or PUT requests proceeded. 45 // |current| denotes the number of bytes sent so far, and |total| is the 46 // total size of uploading data (or -1 if chunked upload is enabled). 47 virtual void OnURLFetchUploadProgress(const URLFetcher* source, 48 int64 current, int64 total); 49 50 protected: 51 virtual ~URLFetcherDelegate(); 52 }; 53 54 } // namespace net 55 56 #endif // NET_URL_REQUEST_URL_FETCHER_DELEGATE_H_ 57
