1 // Copyright 2014 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 CHROME_BROWSER_CHROMEOS_DRIVE_FILEAPI_FILE_SYSTEM_BACKEND_DELEGATE_H_ 6 #define CHROME_BROWSER_CHROMEOS_DRIVE_FILEAPI_FILE_SYSTEM_BACKEND_DELEGATE_H_ 7 8 #include "base/basictypes.h" 9 #include "base/memory/scoped_ptr.h" 10 #include "chrome/browser/chromeos/fileapi/file_system_backend_delegate.h" 11 12 namespace fileapi { 13 class AsyncFileUtil; 14 } // namespace fileapi 15 16 namespace drive { 17 18 // Delegate implementation of the some methods in chromeos::FileSystemBackend 19 // for Drive file system. 20 class FileSystemBackendDelegate : public chromeos::FileSystemBackendDelegate { 21 public: 22 FileSystemBackendDelegate(); 23 virtual ~FileSystemBackendDelegate(); 24 25 // FileSystemBackend::Delegate overrides. 26 virtual fileapi::AsyncFileUtil* GetAsyncFileUtil( 27 fileapi::FileSystemType type) OVERRIDE; 28 virtual scoped_ptr<webkit_blob::FileStreamReader> CreateFileStreamReader( 29 const fileapi::FileSystemURL& url, 30 int64 offset, 31 const base::Time& expected_modification_time, 32 fileapi::FileSystemContext* context) OVERRIDE; 33 virtual scoped_ptr<fileapi::FileStreamWriter> CreateFileStreamWriter( 34 const fileapi::FileSystemURL& url, 35 int64 offset, 36 fileapi::FileSystemContext* context) OVERRIDE; 37 38 private: 39 scoped_ptr<fileapi::AsyncFileUtil> async_file_util_; 40 41 DISALLOW_COPY_AND_ASSIGN(FileSystemBackendDelegate); 42 }; 43 44 } // namespace drive 45 46 #endif // CHROME_BROWSER_CHROMEOS_DRIVE_FILEAPI_FILE_SYSTEM_BACKEND_DELEGATE_H_ 47