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#ifndef EVENTCONNECTION_P_H
#define EVENTCONNECTION_P_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 "qscxmlqmlglobals_p.h"

#include <QtScxml/qscxmlstatemachine.h>
#include <QtScxml/qscxmlevent.h>
#include <QtCore/qobject.h>
#include <QtQml/qqmlparserstatus.h>
#include <QtQml/qqml.h>

QT_BEGIN_NAMESPACE

// QScxmlEvent is used as signal parameter, and defined in the cpp lib
struct Q_SCXMLQML_PRIVATE_EXPORT QScxmlEventForeign
{
    Q_GADGET
    QML_ANONYMOUS
    QML_FOREIGN(QScxmlEvent)
    QML_ADDED_IN_VERSION(5,8)
};

class Q_SCXMLQML_PRIVATE_EXPORT QScxmlEventConnection : public QObject, public QQmlParserStatus
{
    Q_OBJECT
    Q_PROPERTY(QStringList events READ events WRITE setEvents NOTIFY eventsChanged)
    Q_PROPERTY(QScxmlStateMachine *stateMachine READ stateMachine WRITE setStateMachine
               NOTIFY stateMachineChanged)
    Q_INTERFACES(QQmlParserStatus)
    QML_NAMED_ELEMENT(EventConnection)
    QML_ADDED_IN_VERSION(5,8)

public:
    QScxmlEventConnection(QObject *parent = nullptr);

    QStringList events() const;
    void setEvents(const QStringList &events);

    QScxmlStateMachine *stateMachine() const;
    void setStateMachine(QScxmlStateMachine *stateMachine);

Q_SIGNALS:
    void eventsChanged();
    void stateMachineChanged();

    void occurred(const QScxmlEvent &event);

private:
    QScxmlStateMachine *m_stateMachine;
    QStringList m_events;

    QList<QMetaObject::Connection> m_connections;

    void doConnect();
    void classBegin() override;
    void componentComplete() override;
};

QT_END_NAMESPACE

#endif // EVENTCONNECTION_P_H
