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 WEBKIT_BROWSER_FILEAPI_FILE_WRITER_DELEGATE_H_ 6 #define WEBKIT_BROWSER_FILEAPI_FILE_WRITER_DELEGATE_H_ 7 8 #include "base/files/file_path.h" 9 #include "base/memory/scoped_ptr.h" 10 #include "base/memory/weak_ptr.h" 11 #include "base/platform_file.h" 12 #include "base/time/time.h" 13 #include "net/base/file_stream.h" 14 #include "net/base/io_buffer.h" 15 #include "net/url_request/url_request.h" 16 #include "webkit/browser/webkit_storage_browser_export.h" 17 18 namespace fileapi { 19 20 class FileStreamWriter; 21 22 class WEBKIT_STORAGE_BROWSER_EXPORT_PRIVATE FileWriterDelegate 23 : public net::URLRequest::Delegate { 24 public: 25 enum WriteProgressStatus { 26 SUCCESS_IO_PENDING, 27 SUCCESS_COMPLETED, 28 ERROR_WRITE_STARTED, 29 ERROR_WRITE_NOT_STARTED, 30 }; 31 32 typedef base::Callback<void(base::PlatformFileError result, 33 int64 bytes, 34 WriteProgressStatus write_status)> 35 DelegateWriteCallback; 36 37 explicit FileWriterDelegate(scoped_ptr<FileStreamWriter> file_writer); 38 virtual ~FileWriterDelegate(); 39 40 void Start(scoped_ptr<net::URLRequest> request, 41 const DelegateWriteCallback& write_callback); 42 43 // Cancels the current write operation. This will synchronously or 44 // asynchronously call the given write callback (which may result in 45 // deleting this). 46 void Cancel(); 47 48 virtual void OnReceivedRedirect(net::URLRequest* request, 49 const GURL& new_url, 50 bool* defer_redirect) OVERRIDE; 51 virtual void OnAuthRequired(net::URLRequest* request, 52 net::AuthChallengeInfo* auth_info) OVERRIDE; 53 virtual void OnCertificateRequested( 54 net::URLRequest* request, 55 net::SSLCertRequestInfo* cert_request_info) OVERRIDE; 56 virtual void OnSSLCertificateError(net::URLRequest* request, 57 const net::SSLInfo& ssl_info, 58 bool fatal) OVERRIDE; 59 virtual void OnResponseStarted(net::URLRequest* request) OVERRIDE; 60 virtual void OnReadCompleted(net::URLRequest* request, 61 int bytes_read) OVERRIDE; 62 63 private: 64 void OnGetFileInfoAndStartRequest( 65 scoped_ptr<net::URLRequest> request, 66 base::PlatformFileError error, 67 const base::PlatformFileInfo& file_info); 68 void Read(); 69 void OnDataReceived(int bytes_read); 70 void Write(); 71 void OnDataWritten(int write_response); 72 void OnError(base::PlatformFileError error); 73 void OnProgress(int bytes_read, bool done); 74 void OnWriteCancelled(int status); 75 void FlushForCompletion(base::PlatformFileError error, 76 int bytes_written, 77 WriteProgressStatus progress_status); 78 void OnFlushed(base::PlatformFileError error, 79 int bytes_written, 80 WriteProgressStatus progress_status, 81 int flush_error); 82 83 WriteProgressStatus GetCompletionStatusOnError() const; 84 85 DelegateWriteCallback write_callback_; 86 scoped_ptr<FileStreamWriter> file_stream_writer_; 87 base::Time last_progress_event_time_; 88 bool writing_started_; 89 int bytes_written_backlog_; 90 int bytes_written_; 91 int bytes_read_; 92 scoped_refptr<net::IOBufferWithSize> io_buffer_; 93 scoped_refptr<net::DrainableIOBuffer> cursor_; 94 scoped_ptr<net::URLRequest> request_; 95 96 base::WeakPtrFactory<FileWriterDelegate> weak_factory_; 97 98 DISALLOW_COPY_AND_ASSIGN(FileWriterDelegate); 99 }; 100 101 } // namespace fileapi 102 103 #endif // WEBKIT_BROWSER_FILEAPI_FILE_WRITER_DELEGATE_H_ 104