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_FILE_SYSTEM_PROVIDER_FILEAPI_BACKEND_DELEGATE_H_ 6 #define CHROME_BROWSER_CHROMEOS_FILE_SYSTEM_PROVIDER_FILEAPI_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 chromeos { 17 namespace file_system_provider { 18 19 // Delegate implementation of the some methods in chromeos::FileSystemBackend 20 // for provided file systems. 21 class BackendDelegate : public chromeos::FileSystemBackendDelegate { 22 public: 23 BackendDelegate(); 24 virtual ~BackendDelegate(); 25 26 // FileSystemBackend::Delegate overrides. 27 virtual fileapi::AsyncFileUtil* GetAsyncFileUtil(fileapi::FileSystemType type) 28 OVERRIDE; 29 virtual scoped_ptr<webkit_blob::FileStreamReader> CreateFileStreamReader( 30 const fileapi::FileSystemURL& url, 31 int64 offset, 32 const base::Time& expected_modification_time, 33 fileapi::FileSystemContext* context) OVERRIDE; 34 virtual scoped_ptr<fileapi::FileStreamWriter> CreateFileStreamWriter( 35 const fileapi::FileSystemURL& url, 36 int64 offset, 37 fileapi::FileSystemContext* context) OVERRIDE; 38 39 private: 40 scoped_ptr<fileapi::AsyncFileUtil> async_file_util_; 41 42 DISALLOW_COPY_AND_ASSIGN(BackendDelegate); 43 }; 44 45 } // namespace file_system_provider 46 } // namespace chromeos 47 48 #endif // CHROME_BROWSER_CHROMEOS_FILE_SYSTEM_PROVIDER_FILEAPI_BACKEND_DELEGATE_H_ 49