dual_reading_list_model.h | Explore in Territory

// 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_READING_LIST_CORE_DUAL_READING_LIST_MODEL_H_
#define COMPONENTS_READING_LIST_CORE_DUAL_READING_LIST_MODEL_H_

#include <map>
#include <memory>

#include "base/memory/raw_ptr.h"
#include "base/memory/scoped_refptr.h"
#include "base/observer_list.h"
#include "base/sequence_checker.h"
#include "components/reading_list/core/reading_list_entry.h"
#include "components/reading_list/core/reading_list_model.h"
#include "components/reading_list/core/reading_list_model_impl.h"
#include "components/reading_list/core/reading_list_model_observer.h"
#include "google_apis/gaia/core_account_id.h"
#include "url/gurl.h"

namespace reading_list {

// ReadingListModel implementation that is capable of providing a merged view of
// two underlying instances of ReadingListModel. For newly-created entries, the
// class determines internally and based on sign-in & sync state, which
// instance should be used. It is useful to support sync-the-transport use-cases
// where the user is signed in but has sync turned off: in this case the two
// data sources (local entries and entries server-side) should be treated
// independently under the hood, but an in-memory merged view can be presented
// to UI layers and generally feature integrations.
class DualReadingListModel : public ReadingListModel,
                             public ReadingListModelObserver { … };

}  // namespace reading_list

#endif  // COMPONENTS_READING_LIST_CORE_DUAL_READING_LIST_MODEL_H_
chromium/components/reading_list/core/dual_reading_list_model.h
