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// Copyright 2012 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef STORAGE_BROWSER_FILE_SYSTEM_ISOLATED_FILE_SYSTEM_BACKEND_H_
#define STORAGE_BROWSER_FILE_SYSTEM_ISOLATED_FILE_SYSTEM_BACKEND_H_
#include <stdint.h>
#include <memory>
#include "components/file_access/scoped_file_access_delegate.h"
#include "storage/browser/file_system/file_system_backend.h"
#include "storage/browser/file_system/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,
ResolveURLCallback callback) override;
AsyncFileUtil* GetAsyncFileUtil(FileSystemType type) override;
WatcherManager* GetWatcherManager(FileSystemType type) override;
CopyOrMoveFileValidatorFactory* GetCopyOrMoveFileValidatorFactory(
FileSystemType type,
base::File::Error* error_code) override;
std::unique_ptr<FileSystemOperation> CreateFileSystemOperation(
OperationType type,
const FileSystemURL& url,
FileSystemContext* context,
base::File::Error* error_code) const override;
bool SupportsStreaming(const FileSystemURL& url) const override;
bool HasInplaceCopyImplementation(FileSystemType type) const override;
std::unique_ptr<FileStreamReader> CreateFileStreamReader(
const FileSystemURL& url,
int64_t offset,
int64_t max_bytes_to_read,
const base::Time& expected_modification_time,
FileSystemContext* context,
file_access::ScopedFileAccessDelegate::RequestFilesAccessIOCallback
file_access) const override;
std::unique_ptr<FileStreamWriter> CreateFileStreamWriter(
const FileSystemURL& url,
int64_t 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_;
std::unique_ptr<AsyncFileUtilAdapter> isolated_file_util_;
std::unique_ptr<AsyncFileUtilAdapter> dragged_file_util_;
std::unique_ptr<AsyncFileUtilAdapter> transient_file_util_;
};
} // namespace storage
#endif // STORAGE_BROWSER_FILE_SYSTEM_ISOLATED_FILE_SYSTEM_BACKEND_H_
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