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// Copyright 2014 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_FILE_SYSTEM_PROVIDER_FILEAPI_BACKEND_DELEGATE_H_
#define CHROME_BROWSER_CHROMEOS_FILE_SYSTEM_PROVIDER_FILEAPI_BACKEND_DELEGATE_H_
#include <stdint.h>
#include "base/files/file_util.h"
#include "base/macros.h"
#include "base/memory/scoped_ptr.h"
#include "chrome/browser/chromeos/fileapi/file_system_backend_delegate.h"
namespace storage {
class AsyncFileUtil;
class FileSystemContext;
class FileStreamReader;
class FileSystemURL;
class FileStreamWriter;
class WatcherManager;
} // namespace storage
namespace chromeos {
namespace file_system_provider {
// Delegate implementation of the some methods in chromeos::FileSystemBackend
// for provided file systems.
class BackendDelegate : public chromeos::FileSystemBackendDelegate {
public:
BackendDelegate();
~BackendDelegate() override;
// FileSystemBackend::Delegate overrides.
storage::AsyncFileUtil* GetAsyncFileUtil(
storage::FileSystemType type) override;
scoped_ptr<storage::FileStreamReader> CreateFileStreamReader(
const storage::FileSystemURL& url,
int64_t offset,
int64_t max_bytes_to_read,
const base::Time& expected_modification_time,
storage::FileSystemContext* context) override;
scoped_ptr<storage::FileStreamWriter> CreateFileStreamWriter(
const storage::FileSystemURL& url,
int64_t offset,
storage::FileSystemContext* context) override;
storage::WatcherManager* GetWatcherManager(
storage::FileSystemType type) override;
void GetRedirectURLForContents(const storage::FileSystemURL& url,
const storage::URLCallback& callback) override;
private:
scoped_ptr<storage::AsyncFileUtil> async_file_util_;
scoped_ptr<storage::WatcherManager> watcher_manager_;
DISALLOW_COPY_AND_ASSIGN(BackendDelegate);
};
} // namespace file_system_provider
} // namespace chromeos
#endif // CHROME_BROWSER_CHROMEOS_FILE_SYSTEM_PROVIDER_FILEAPI_BACKEND_DELEGATE_H_
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