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// Copyright (c) 2012 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 STORAGE_BROWSER_FILEAPI_ISOLATED_FILE_SYSTEM_BACKEND_H_
#define STORAGE_BROWSER_FILEAPI_ISOLATED_FILE_SYSTEM_BACKEND_H_
#include "base/memory/scoped_ptr.h"
#include "storage/browser/fileapi/file_system_backend.h"
#include "storage/browser/fileapi/task_runner_bound_observer_list.h"
namespace storage {
class AsyncFileUtilAdapter;
class IsolatedFileSystemBackend : public FileSystemBackend {
public:
IsolatedFileSystemBackend(bool use_for_type_native_local,
bool use_for_type_platform_app);
~IsolatedFileSystemBackend() override;
// FileSystemBackend implementation.
bool CanHandleType(FileSystemType type) const override;
void Initialize(FileSystemContext* context) override;
void ResolveURL(const FileSystemURL& url,
OpenFileSystemMode mode,
const OpenFileSystemCallback& callback) override;
AsyncFileUtil* GetAsyncFileUtil(FileSystemType type) override;
WatcherManager* GetWatcherManager(FileSystemType type) override;
CopyOrMoveFileValidatorFactory* GetCopyOrMoveFileValidatorFactory(
FileSystemType type,
base::File::Error* error_code) override;
FileSystemOperation* CreateFileSystemOperation(
const FileSystemURL& url,
FileSystemContext* context,
base::File::Error* error_code) const override;
bool SupportsStreaming(const FileSystemURL& url) const override;
bool HasInplaceCopyImplementation(
storage::FileSystemType type) const override;
scoped_ptr<storage::FileStreamReader> CreateFileStreamReader(
const FileSystemURL& url,
int64 offset,
int64 max_bytes_to_read,
const base::Time& expected_modification_time,
FileSystemContext* context) const override;
scoped_ptr<FileStreamWriter> CreateFileStreamWriter(
const FileSystemURL& url,
int64 offset,
FileSystemContext* context) const override;
FileSystemQuotaUtil* GetQuotaUtil() override;
const UpdateObserverList* GetUpdateObservers(
FileSystemType type) const override;
const ChangeObserverList* GetChangeObservers(
FileSystemType type) const override;
const AccessObserverList* GetAccessObservers(
FileSystemType type) const override;
private:
// Whether this object should handle native local filesystem types. Some
// platforms (e.g. Chrome OS) may provide a different FileSystemBackend to
// handle those types.
const bool use_for_type_native_local_;
// As above but for platform webapps.
const bool use_for_type_platform_app_;
scoped_ptr<AsyncFileUtilAdapter> isolated_file_util_;
scoped_ptr<AsyncFileUtilAdapter> dragged_file_util_;
scoped_ptr<AsyncFileUtilAdapter> transient_file_util_;
};
} // namespace storage
#endif // STORAGE_BROWSER_FILEAPI_ISOLATED_FILE_SYSTEM_BACKEND_H_
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