qtdeclarative/examples/quick/models/threadedfetchmore/threadedfetchmoremodel.h

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// Copyright (C) 2025 The Qt Company Ltd.
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR BSD-3-Clause
#ifndef THREADEDFETCHMOREMODEL_H
#define THREADEDFETCHMOREMODEL_H
#include <fetchworker.h>
#include <QAbstractListModel>
#include <QThread>
#include <QtQml/qqmlregistration.h>
class ThreadedFetchMoreModel : public QAbstractListModel
{
Q_OBJECT
QML_ELEMENT
public:
ThreadedFetchMoreModel();
~ThreadedFetchMoreModel();
Q_INVOKABLE int rowCount(const QModelIndex &parent = QModelIndex()) const override;
Q_INVOKABLE QVariant data(const QModelIndex &index, int role = Qt::DisplayRole) const override;
Q_INVOKABLE void fetchMore(const QModelIndex &parent) override;
Q_INVOKABLE bool canFetchMore(const QModelIndex &parent) const override;
QHash<int, QByteArray> roleNames() const override;
signals:
void fetchDataBlock();
protected:
enum class Role { Title = Qt::ItemDataRole::UserRole, Subtitle, Number, LoadingElement };
private slots:
void dataReceived(const QList<FetchWorker::DataBlock> &items);
void noMoreToFetch();
private:
void addLoadingItem();
void removeLoadingItem();
QList<FetchWorker::DataBlock> m_dataList;
QThread m_workerThread;
bool m_fetchOngoing{false};
bool m_hasUnfetchedItems{true};
};
#endif // UNTHREADEDFETCHMOREMODEL_H