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// Copyright (C) 2025 The Qt Company Ltd.
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0-only
#ifndef REFUSEWRITE_H
#define REFUSEWRITE_H
#include <QtCore/qobject.h>
#include <QtCore/qqueue.h>
#include <QtCore/qvariant.h>
#include <QtCore/qcoreevent.h>
#include <QtQmlIntegration/qqmlintegration.h>
class RefuseWrite : public QObject
{
Q_OBJECT
QML_ELEMENT
Q_PROPERTY(QVariantList things READ things WRITE setThings NOTIFY thingsChanged)
public:
RefuseWrite(QObject *parent = nullptr) : QObject(parent) {
m_things.enqueue(QVariantList());
}
QVariantList things() const
{
return m_things.head();
}
void setThings(const QVariantList &newThings)
{
m_things.enqueue(newThings);
startTimer(1);
}
qsizetype pendingChanges() const
{
return m_things.size() - 1;
}
private:
void timerEvent(QTimerEvent *event) override
{
if (m_things.size() < 2) {
killTimer(event->id());
return;
}
const QVariantList old = m_things.dequeue();
if (old != m_things.head())
emit thingsChanged();
}
signals:
void thingsChanged();
private:
QQueue<QVariantList> m_things;
};
#endif // REFUSEWRITE_H