qqmlclassicpreviewhandler.h

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// Copyright (C) 2018 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

// Qt-Security score:significant

#ifndef QQMLCLASSICPREVIEWHANDLER_H

#define QQMLCLASSICPREVIEWHANDLER_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 "qqmlpreviewhandler.h"

#include <QtCore/qpointer.h>

#include <QtQml/qqmlcomponent.h>

QT_BEGIN_NAMESPACE

class QQuickItem;

class QQmlClassicPreviewHandler : public QQmlPreviewHandler

    Q_OBJECT

public:

    explicit QQmlClassicPreviewHandler(QObject *parent = nullptr);

    ~QQmlClassicPreviewHandler() override;

    void removeEngine(QQmlEngine *engine) final;

    void connectToService(QQmlPreviewServiceImpl *service) final;

    void load(const QUrl &url) final;

private:

    void dropCU(const QUrl &url);

    void rerun();

    void clear();

    void zoom(qreal newFactor);

    void beforeSynchronizing();

    void afterSynchronizing();

    void beforeRendering();

    void frameSwapped();

    void tryCreateObject();

    void showObject(QObject *object);

    bool eventFilter(QObject *obj, QEvent *event) final;

    QScopedPointer<QQuickItem> m_dummyItem;

    QList<QPointer<QObject>> m_createdObjects;

    QScopedPointer<QQmlComponent> m_component;

    qreal m_zoomFactor = 1.0;

    bool m_supportsMultipleWindows;

    QQmlPreviewPosition m_lastPosition;

};

QT_END_NAMESPACE

#endif // QQMLCLASSICPREVIEWHANDLER_H