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// Copyright (C) 2016 The Qt Company Ltd.
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only
#ifndef QQMLBIND_H
#define QQMLBIND_H
//
// W A R N I N G
// -------------
//
// This file is not part of the Qt API. It exists purely as an
// implementation detail. This header file may change from version to
// version without notice, or even be removed.
//
// We mean it.
//
#include <private/qtqmlglobal_p.h>
#include <QtQml/qqml.h>
#include <QtCore/qobject.h>
QT_BEGIN_NAMESPACE
class QQmlBindPrivate;
class Q_QML_EXPORT QQmlBind : public QObject, public QQmlPropertyValueSource, public QQmlParserStatus
{
public:
enum RestorationMode {
RestoreNone = 0x0,
RestoreBinding = 0x1,
RestoreValue = 0x2,
RestoreBindingOrValue = RestoreBinding | RestoreValue
};
private:
Q_OBJECT
Q_DECLARE_PRIVATE(QQmlBind)
Q_INTERFACES(QQmlParserStatus)
Q_INTERFACES(QQmlPropertyValueSource)
Q_PROPERTY(QObject *target READ object WRITE setObject)
Q_PROPERTY(QString property READ property WRITE setProperty)
Q_PROPERTY(QVariant value READ value WRITE setValue)
Q_PROPERTY(bool when READ when WRITE setWhen)
Q_PROPERTY(bool delayed READ delayed WRITE setDelayed REVISION(2, 8))
Q_PROPERTY(RestorationMode restoreMode READ restoreMode WRITE setRestoreMode
NOTIFY restoreModeChanged REVISION(2, 14))
Q_ENUM(RestorationMode)
QML_NAMED_ELEMENT(Binding)
QML_ADDED_IN_VERSION(2, 0)
Q_CLASSINFO("ImmediatePropertyNames", "objectName,target,property,value,when,delayed,restoreMode");
public:
QQmlBind(QObject *parent=nullptr);
bool when() const;
void setWhen(bool);
QObject *object();
void setObject(QObject *);
QString property() const;
void setProperty(const QString &);
QVariant value() const;
void setValue(const QVariant &);
bool delayed() const;
void setDelayed(bool);
RestorationMode restoreMode() const;
void setRestoreMode(RestorationMode);
Q_SIGNALS:
void restoreModeChanged();
protected:
void setTarget(const QQmlProperty &) override;
void classBegin() override;
void componentComplete() override;
private:
void prepareEval();
void eval();
private Q_SLOTS:
void targetValueChanged();
};
QT_END_NAMESPACE
#endif
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