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// Copyright 2013 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef CHROME_BROWSER_CHROMEOS_FILEAPI_FILE_SYSTEM_BACKEND_DELEGATE_H_
#define CHROME_BROWSER_CHROMEOS_FILEAPI_FILE_SYSTEM_BACKEND_DELEGATE_H_
#include "base/basictypes.h"
#include "base/memory/scoped_ptr.h"
#include "base/platform_file.h"
#include "webkit/common/fileapi/file_system_types.h"
namespace base {
class Time;
} // namespace base
namespace fileapi {
class AsyncFileUtil;
class FileSystemContext;
class FileSystemOperation;
class FileSystemURL;
class FileStreamWriter;
} // namespace fileapi
namespace webkit_blob {
class FileStreamReader;
} // namespace webkit_blob
namespace chromeos {
// This is delegate interface to inject the implementation of the some methods
// of FileSystemBackend. The main goal is to inject Drive File System.
class FileSystemBackendDelegate {
public:
virtual ~FileSystemBackendDelegate() {}
// Called from FileSystemBackend::GetAsyncFileUtil().
virtual fileapi::AsyncFileUtil* GetAsyncFileUtil(
fileapi::FileSystemType type) = 0;
// Called from FileSystemBackend::CreateFileStreamReader().
virtual scoped_ptr<webkit_blob::FileStreamReader> CreateFileStreamReader(
const fileapi::FileSystemURL& url,
int64 offset,
const base::Time& expected_modification_time,
fileapi::FileSystemContext* context) = 0;
// Called from FileSystemBackend::CreateFileStreamWriter().
virtual scoped_ptr<fileapi::FileStreamWriter> CreateFileStreamWriter(
const fileapi::FileSystemURL& url,
int64 offset,
fileapi::FileSystemContext* context) = 0;
};
} // namespace chromeos
#endif // CHROME_BROWSER_CHROMEOS_FILEAPI_FILE_SYSTEM_BACKEND_DELEGATE_H_
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