forked from qt-creator/qt-creator
94 lines
3.5 KiB
C++
94 lines
3.5 KiB
C++
/***************************************************************************
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**
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** This file is part of Qt Creator
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**
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** Copyright (c) 2008 Nokia Corporation and/or its subsidiary(-ies).
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**
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** Contact: Qt Software Information (qt-info@nokia.com)
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**
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**
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** Non-Open Source Usage
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**
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** Licensees may use this file in accordance with the Qt Beta Version
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** License Agreement, Agreement version 2.2 provided with the Software or,
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** alternatively, in accordance with the terms contained in a written
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** agreement between you and Nokia.
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**
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** GNU General Public License Usage
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**
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** Alternatively, this file may be used under the terms of the GNU General
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** Public License versions 2.0 or 3.0 as published by the Free Software
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** Foundation and appearing in the file LICENSE.GPL included in the packaging
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** of this file. Please review the following information to ensure GNU
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** General Public Licensing requirements will be met:
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**
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** http://www.fsf.org/licensing/licenses/info/GPLv2.html and
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** http://www.gnu.org/copyleft/gpl.html.
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**
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** In addition, as a special exception, Nokia gives you certain additional
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** rights. These rights are described in the Nokia Qt GPL Exception
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** version 1.3, included in the file GPL_EXCEPTION.txt in this package.
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**
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***************************************************************************/
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#ifndef INTERFACE_WRAP_HELPERS_H
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#define INTERFACE_WRAP_HELPERS_H
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#include <extensionsystem/ExtensionSystemInterfaces>
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#include <QtScript/QScriptEngine>
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namespace SharedTools {
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// Convert a QObjectInterface to Scriptvalue
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// To be registered as a magic creation function with qScriptRegisterMetaType().
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// (see registerQObjectInterface)
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template <class QObjectInterface>
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static QScriptValue qObjectInterfaceToScriptValue(QScriptEngine *engine, QObjectInterface* const &qoif)
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{
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if (!qoif)
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return QScriptValue(engine, QScriptValue::NullValue);
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QObject *qObject = const_cast<QObjectInterface *>(qoif);
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const QScriptEngine::QObjectWrapOptions wrapOptions =
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QScriptEngine::ExcludeChildObjects|QScriptEngine::ExcludeSuperClassMethods|QScriptEngine::ExcludeSuperClassProperties;
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return engine->newQObject(qObject, QScriptEngine::QtOwnership, wrapOptions);
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}
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// Convert Scriptvalue back to QObjectInterface
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// To be registered as a magic conversion function with qScriptRegisterMetaType().
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// (see registerQObjectInterface)
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template <class QObjectInterface>
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static void scriptValueToQObjectInterface(const QScriptValue &sv, QObjectInterface *&p)
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{
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QObject *qObject = sv.toQObject();
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p = qobject_cast<QObjectInterface*>(qObject);
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}
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// Magically register a Workbench interface derived from
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// ExtensionSystem::QObjectInterface class with the engine.
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// To avoid lifecycle issues, the script value is created on the QObject returned
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// by ExtensionSystem::QObjectInterface::qObject() and given the specified
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// prototype. By convention, ExtensionSystem::QObjectInterface::qObject() returns an
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// QObject that implements the interface, so it can be casted to it.
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template <class QObjectInterface, class Prototype>
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static void registerQObjectInterface(QScriptEngine &engine)
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{
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Prototype *protoType = new Prototype(&engine);
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const QScriptValue scriptProtoType = engine.newQObject(protoType);
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const int metaTypeId = qScriptRegisterMetaType<QObjectInterface*>(
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&engine,
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qObjectInterfaceToScriptValue<QObjectInterface>,
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scriptValueToQObjectInterface<QObjectInterface>,
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scriptProtoType);
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Q_UNUSED(metaTypeId);
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}
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} // namespace SharedTools
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#endif // INTERFACE_WRAP_HELPERS_H
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