| /**************************************************************************** |
| ** |
| ** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies). |
| ** All rights reserved. |
| ** Contact: Nokia Corporation (qt-info@nokia.com) |
| ** |
| ** This file is part of the QtDeclarative module of the Qt Toolkit. |
| ** |
| ** $QT_BEGIN_LICENSE:LGPL$ |
| ** GNU Lesser General Public License Usage |
| ** This file may be used under the terms of the GNU Lesser General Public |
| ** License version 2.1 as published by the Free Software Foundation and |
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| ** file. Please review the following information to ensure the GNU Lesser |
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| ** |
| ** In addition, as a special exception, Nokia gives you certain additional |
| ** rights. These rights are described in the Nokia Qt LGPL Exception |
| ** version 1.1, included in the file LGPL_EXCEPTION.txt in this package. |
| ** |
| ** GNU General Public License Usage |
| ** Alternatively, this file may be used under the terms of the GNU General |
| ** Public License version 3.0 as published by the Free Software Foundation |
| ** and appearing in the file LICENSE.GPL included in the packaging of this |
| ** file. Please review the following information to ensure the GNU General |
| ** Public License version 3.0 requirements will be met: |
| ** http://www.gnu.org/copyleft/gpl.html. |
| ** |
| ** Other Usage |
| ** Alternatively, this file may be used in accordance with the terms and |
| ** conditions contained in a signed written agreement between you and Nokia. |
| ** |
| ** |
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| ** $QT_END_LICENSE$ |
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| ****************************************************************************/ |
| |
| #include "private/qdeclarativecleanup_p.h" |
| |
| #include "private/qdeclarativeengine_p.h" |
| |
| QT_BEGIN_NAMESPACE |
| |
| /*! |
| \internal |
| \class QDeclarativeCleanup |
| \brief The QDeclarativeCleanup provides a callback when a QDeclarativeEngine is deleted. |
| |
| Any object that needs cleanup to occur before the QDeclarativeEngine's QScriptEngine is |
| destroyed should inherit from QDeclarativeCleanup. The clear() virtual method will be |
| called by QDeclarativeEngine just before it deletes the QScriptEngine. |
| */ |
| |
| /*! |
| \internal |
| |
| Create a QDeclarativeCleanup for \a engine |
| */ |
| QDeclarativeCleanup::QDeclarativeCleanup(QDeclarativeEngine *engine) |
| : prev(0), next(0) |
| { |
| if (!engine) |
| return; |
| |
| QDeclarativeEnginePrivate *p = QDeclarativeEnginePrivate::get(engine); |
| |
| if (p->cleanup) next = p->cleanup; |
| p->cleanup = this; |
| prev = &p->cleanup; |
| if (next) next->prev = &next; |
| } |
| |
| /*! |
| \internal |
| */ |
| QDeclarativeCleanup::~QDeclarativeCleanup() |
| { |
| if (prev) *prev = next; |
| if (next) next->prev = prev; |
| prev = 0; |
| next = 0; |
| } |
| QT_END_NAMESPACE |