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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/callback_forward.h"
#include "base/memory/scoped_ptr.h"
#include "storage/browser/fileapi/file_system_backend.h"
#include "storage/common/fileapi/file_system_types.h"
class GURL;
namespace base {
class Time;
} // namespace base
namespace storage {
class AsyncFileUtil;
class FileSystemContext;
class FileStreamReader;
class FileSystemURL;
class FileStreamWriter;
class WatcherManager;
} // namespace storage
namespace chromeos {
// This is delegate interface to inject the implementation of the some methods
// of FileSystemBackend.
class FileSystemBackendDelegate {
public:
virtual ~FileSystemBackendDelegate() {}
// Called from FileSystemBackend::GetAsyncFileUtil().
virtual storage::AsyncFileUtil* GetAsyncFileUtil(
storage::FileSystemType type) = 0;
// Called from FileSystemBackend::CreateFileStreamReader().
virtual scoped_ptr<storage::FileStreamReader> CreateFileStreamReader(
const storage::FileSystemURL& url,
int64 offset,
int64 max_bytes_to_read,
const base::Time& expected_modification_time,
storage::FileSystemContext* context) = 0;
// Called from FileSystemBackend::CreateFileStreamWriter().
virtual scoped_ptr<storage::FileStreamWriter> CreateFileStreamWriter(
const storage::FileSystemURL& url,
int64 offset,
storage::FileSystemContext* context) = 0;
// Called from the FileSystemWatcherService class. The returned pointer must
// stay valid until shutdown.
virtual storage::WatcherManager* GetWatcherManager(
storage::FileSystemType type) = 0;
// Called from FileSystemBackend::GetRedirectURLForContents. Please ensure
// that the returned URL is secure to be opened in a browser tab, or referred
// from <img>, <video>, XMLHttpRequest, etc...
virtual void GetRedirectURLForContents(
const storage::FileSystemURL& url,
const storage::URLCallback& callback) = 0;
};
} // namespace chromeos
#endif // CHROME_BROWSER_CHROMEOS_FILEAPI_FILE_SYSTEM_BACKEND_DELEGATE_H_
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