chromium/components/history_clusters/core/query_clusters_state.h

// Copyright 2022 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#ifndef COMPONENTS_HISTORY_CLUSTERS_CORE_QUERY_CLUSTERS_STATE_H_
#define COMPONENTS_HISTORY_CLUSTERS_CORE_QUERY_CLUSTERS_STATE_H_

#include <string>
#include <unordered_set>
#include <vector>

#include "base/functional/callback_forward.h"
#include "base/gtest_prod_util.h"
#include "base/memory/scoped_refptr.h"
#include "base/memory/weak_ptr.h"
#include "base/task/cancelable_task_tracker.h"
#include "base/task/sequenced_task_runner.h"
#include "base/time/time.h"
#include "base/timer/elapsed_timer.h"
#include "components/history/core/browser/history_types.h"
#include "components/history_clusters/core/history_clusters_types.h"
#include "components/history_clusters/core/similar_visit.h"

namespace history {
class HistoryService;
}  // namespace history

namespace history_clusters {

class HistoryClustersService;
class HistoryClustersServiceTask;

LabelCount;

// This object encapsulates the results of a query to HistoryClustersService.
// It manages fetching more pages from the clustering backend as the user
// scrolls down.
//
// In the future, it will also manage reusing results for new searches, as well
// as collapsing duplicate clusters across pages.
//
// It's the history_clusters equivalent to history::QueryHistoryState.
class QueryClustersState { … };

}  // namespace history_clusters

#endif  // COMPONENTS_HISTORY_CLUSTERS_CORE_QUERY_CLUSTERS_STATE_H_