default_extensionfactory.h

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// Copyright (C) 2016 The Qt Company Ltd.
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0-only WITH Qt-GPL-exception-1.0
 
#ifndef DEFAULT_EXTENSIONFACTORY_H
#define DEFAULT_EXTENSIONFACTORY_H
 
#include <QtDesigner/extension_global.h>
#include <QtDesigner/extension.h>
 
#include <QtCore/qmap.h>
#include <QtCore/qhash.h>
#include <QtCore/qpair.h>
 
QT_BEGIN_NAMESPACE
 
class QExtensionManager;
 
class QDESIGNER_EXTENSION_EXPORT QExtensionFactory : public QObject, public QAbstractExtensionFactory
{
    Q_OBJECT
    Q_INTERFACES(QAbstractExtensionFactory)
public:
    explicit QExtensionFactory(QExtensionManager *parent = nullptr);
 
    QObject *extension(QObject *object, const QString &iid) const override;
    QExtensionManager *extensionManager() const;
 
private Q_SLOTS:
    void objectDestroyed(QObject *object);
 
protected:
    virtual QObject *createExtension(QObject *object, const QString &iid, QObject *parent) const;
 
private:
    mutable QMap<std::pair<QString, QObject *>, QObject *> m_extensions;
    // ### FIXME Qt 7: Use QSet, add out of line destructor.
    mutable QHash<QObject*, bool>  m_extended;
};
 
QT_END_NAMESPACE
 
#endif // DEFAULT_EXTENSIONFACTORY_H