withbindable.h - mozsearch

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// Copyright (C) 2021 The Qt Company Ltd.

// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0-only

#ifndef WITH_BINDABLE_H

#define WITH_BINDABLE_H

#include <QObject>

#include <QtCore/qproperty.h>

#include <qqml.h>

#include <QtQml/private/qqmlproperty_p.h>

#include <QtQml/private/qqmlpropertyvalueinterceptor_p.h>

class WithBinding : public QObject {

    Q_OBJECT

    QML_ELEMENT

    Q_PROPERTY(int prop READ prop WRITE setProp BINDABLE bindableProp)

public:

    int prop() {return m_prop;}

    void setProp(int i) {m_prop = i;}

    QBindable<int> bindableProp() {return &m_prop;}

private:

    QProperty<int> m_prop;

};

// Minimal stand-in for Behavior: redirects bindings to its own property.

class BindableInterceptor : public QObject, public QQmlPropertyValueInterceptor

    Q_OBJECT

    QML_ELEMENT

    Q_INTERFACES(QQmlPropertyValueInterceptor)

public:

    void setTarget(const QQmlProperty &property) override { m_property = property; }

    void write(const QVariant &value) override

        ++writeCount;

        QQmlPropertyPrivate::write(m_property, value, QQmlPropertyData::BypassInterceptor);

    bool bindable(QUntypedBindable *bindable, QUntypedBindable target) override

        Q_UNUSED(target);

        ++bindableCount;

        *bindable = QBindable<int>(&m_intercepted);

        return true;

    int writeCount = 0;

    int bindableCount = 0;

private:

    QQmlProperty m_property;

    QProperty<int> m_intercepted;

};

#endif