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// Copyright 2024 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef CHROMEOS_ASH_COMPONENTS_DRIVEFS_DRIVEFS_SEARCH_QUERY_H_
#define CHROMEOS_ASH_COMPONENTS_DRIVEFS_DRIVEFS_SEARCH_QUERY_H_
#include <optional>
#include <vector>
#include "base/component_export.h"
#include "base/memory/weak_ptr.h"
#include "chromeos/ash/components/drivefs/mojom/drivefs.mojom.h"
#include "components/drive/file_errors.h"
#include "mojo/public/cpp/bindings/remote.h"
namespace drivefs {
class DriveFsSearchQueryDelegate;
// A single search query to DriveFS.
// Destroy this class to stop any searches.
class COMPONENT_EXPORT(CHROMEOS_ASH_COMPONENTS_DRIVEFS) DriveFsSearchQuery {
public:
DriveFsSearchQuery(base::WeakPtr<DriveFsSearchQueryDelegate> delegate,
mojom::QueryParametersPtr query);
DriveFsSearchQuery(const DriveFsSearchQuery&) = delete;
DriveFsSearchQuery& operator=(const DriveFsSearchQuery&) = delete;
~DriveFsSearchQuery();
mojom::QueryParameters::QuerySource source();
// `callback` is guaranteed to be eventually called. If the remote is
// disconnected / unbound, it will be called with
// `{drive::FILE_ERROR_ABORT, std::nullopt}`.
void GetNextPage(mojom::SearchQuery::GetNextPageCallback callback);
private:
// Initializes `remote_` based on `query_` and offline status. Can be called
// after the constructor to re-initialize `remote_`.
void Init();
void OnGetNextPage(
mojom::SearchQuery::GetNextPageCallback callback,
drive::FileError error,
std::optional<std::vector<drivefs::mojom::QueryItemPtr>> items);
// Adjusts `query_` for an offline search. Does not re-initialize `remote_`.
void AdjustQueryForOffline();
// Whether this search query has ever returned a page from `GetNextPage`.
// Used for tracking whether we should retry this query if we are offline.
bool first_page_returned_ = false;
base::WeakPtr<DriveFsSearchQueryDelegate> delegate_;
mojom::QueryParametersPtr query_;
mojo::Remote<mojom::SearchQuery> remote_;
base::WeakPtrFactory<DriveFsSearchQuery> weak_ptr_factory_{this};
};
} // namespace drivefs
#endif // CHROMEOS_ASH_COMPONENTS_DRIVEFS_DRIVEFS_SEARCH_QUERY_H_
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