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// Copyright 2013 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef CHROME_BROWSER_SYNC_FILE_SYSTEM_LOCAL_SYNC_FILE_SYSTEM_BACKEND_H_
#define CHROME_BROWSER_SYNC_FILE_SYSTEM_LOCAL_SYNC_FILE_SYSTEM_BACKEND_H_
#include <stdint.h>
#include <memory>
#include "base/memory/raw_ptr.h"
#include "chrome/browser/sync_file_system/sync_callbacks.h"
#include "chrome/browser/sync_file_system/sync_status_code.h"
#include "components/file_access/scoped_file_access_delegate.h"
#include "storage/browser/file_system/file_system_backend.h"
#include "storage/browser/file_system/file_system_quota_util.h"
#include "storage/browser/file_system/sandbox_file_system_backend_delegate.h"
#include "storage/browser/file_system/task_runner_bound_observer_list.h"
class Profile;
namespace sync_file_system {
class LocalFileChangeTracker;
class LocalFileSyncContext;
class SyncFileSystemBackend : public storage::FileSystemBackend {
public:
explicit SyncFileSystemBackend(Profile* profile);
SyncFileSystemBackend(const SyncFileSystemBackend&) = delete;
SyncFileSystemBackend& operator=(const SyncFileSystemBackend&) = delete;
~SyncFileSystemBackend() override;
static std::unique_ptr<SyncFileSystemBackend> CreateForTesting();
// FileSystemBackend overrides.
bool CanHandleType(storage::FileSystemType type) const override;
void Initialize(storage::FileSystemContext* context) override;
void ResolveURL(const storage::FileSystemURL& url,
storage::OpenFileSystemMode mode,
ResolveURLCallback callback) override;
storage::AsyncFileUtil* GetAsyncFileUtil(
storage::FileSystemType type) override;
storage::WatcherManager* GetWatcherManager(
storage::FileSystemType type) override;
storage::CopyOrMoveFileValidatorFactory* GetCopyOrMoveFileValidatorFactory(
storage::FileSystemType type,
base::File::Error* error_code) override;
std::unique_ptr<storage::FileSystemOperation> CreateFileSystemOperation(
storage::OperationType type,
const storage::FileSystemURL& url,
storage::FileSystemContext* context,
base::File::Error* error_code) const override;
bool SupportsStreaming(const storage::FileSystemURL& url) const override;
bool HasInplaceCopyImplementation(
storage::FileSystemType type) const override;
std::unique_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,
file_access::ScopedFileAccessDelegate::RequestFilesAccessIOCallback
file_access) const override;
std::unique_ptr<storage::FileStreamWriter> CreateFileStreamWriter(
const storage::FileSystemURL& url,
int64_t offset,
storage::FileSystemContext* context) const override;
storage::FileSystemQuotaUtil* GetQuotaUtil() override;
const storage::UpdateObserverList* GetUpdateObservers(
storage::FileSystemType type) const override;
const storage::ChangeObserverList* GetChangeObservers(
storage::FileSystemType type) const override;
const storage::AccessObserverList* GetAccessObservers(
storage::FileSystemType type) const override;
static SyncFileSystemBackend* GetBackend(
const storage::FileSystemContext* context);
LocalFileChangeTracker* change_tracker() { return change_tracker_.get(); }
void SetLocalFileChangeTracker(
std::unique_ptr<LocalFileChangeTracker> tracker);
LocalFileSyncContext* sync_context() { return sync_context_.get(); }
void set_sync_context(LocalFileSyncContext* sync_context);
private:
// Not owned.
raw_ptr<storage::FileSystemContext, DanglingUntriaged> context_ = nullptr;
std::unique_ptr<LocalFileChangeTracker> change_tracker_;
scoped_refptr<LocalFileSyncContext> sync_context_;
// |profile_| will initially be valid but may be destroyed before |this|, so
// it should be checked before being accessed.
raw_ptr<Profile, AcrossTasksDanglingUntriaged> profile_;
// A flag to skip the initialization sequence of SyncFileSystemService for
// testing.
bool skip_initialize_syncfs_service_for_testing_ = false;
storage::SandboxFileSystemBackendDelegate* GetDelegate() const;
void InitializeSyncFileSystemService(const GURL& origin_url,
SyncStatusCallback callback);
void DidInitializeSyncFileSystemService(storage::FileSystemContext* context,
const GURL& origin_url,
storage::FileSystemType type,
storage::OpenFileSystemMode mode,
ResolveURLCallback callback,
SyncStatusCode status);
};
} // namespace sync_file_system
#endif // CHROME_BROWSER_SYNC_FILE_SYSTEM_LOCAL_SYNC_FILE_SYSTEM_BACKEND_H_
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