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/****************************************************************************
**
** 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 QtScript module of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL-ONLY$
** 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 appearing in the file LICENSE.LGPL included in the
** packaging of this file. Please review the following information to
** ensure the GNU Lesser General Public License version 2.1 requirements
** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
**
** If you have questions regarding the use of this file, please contact
** Nokia at qt-info@nokia.com.
** $QT_END_LICENSE$
**
****************************************************************************/
//
// 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.
//
#ifndef QSCRIPTQOBJECT_IMPL_P_H
#define QSCRIPTQOBJECT_IMPL_P_H
#include "qscriptqobject_p.h"
#include "qscriptengine_p.h"
QT_BEGIN_NAMESPACE
inline QtDataBase::QtDataBase(QScriptEnginePrivate *engine)
: m_engine(engine)
{
Q_ASSERT(engine);
engine->registerAdditionalResources(this);
}
inline QtDataBase::~QtDataBase()
{
m_engine->unregisterAdditionalResources(this);
}
inline QScriptEnginePrivate *QtDataBase::engine() const
{
return m_engine;
}
template<class T>
QtData<T>::QtData(QScriptEnginePrivate *engine)
: QtDataBase(engine)
{ }
template<class T>
T* QtData<T>::get(v8::Handle<v8::Object> object)
{
Q_ASSERT(object->InternalFieldCount() == 1);
void *ptr = object->GetPointerFromInternalField(0);
Q_ASSERT(ptr);
return static_cast<T*>(ptr);
}
template<class T>
void QtData<T>::set(v8::Handle<v8::Object> object, T* data)
{
T* oldData = get(object);
delete oldData;
object->SetPointerInInternalField(0, data);
}
inline QScriptQObjectData::QScriptQObjectData(QScriptEnginePrivate *engine, QObject *object,
QScriptEngine::ValueOwnership own,
const QScriptEngine::QObjectWrapOptions &opt)
: QtData<QScriptQObjectData>(engine)
, m_cppObject(object)
, m_own(own)
, m_opt(opt)
{
}
inline QScriptQObjectData::~QScriptQObjectData()
{
// qDebug("~QScriptQObjectData()");
switch (m_own) {
case QScriptEngine::QtOwnership:
break;
case QScriptEngine::AutoOwnership:
if (m_cppObject && m_cppObject.data()->parent())
break;
case QScriptEngine::ScriptOwnership:
delete m_cppObject.data();
break;
}
}
inline QObject *QScriptQObjectData::cppObject(v8::Local<v8::Value> *error) const
{
if (!m_cppObject) {
v8::Local<v8::String> msg = v8::String::New("cannot access member of deleted QObject");
/*v8::Handle<v8::String> msg = v8::String::Concat(
v8::String::New("cannot access member `"),
v8::String::Concat(property, v8::String::New("' of deleted QObject")));*/
// FIXME: Workaround for http://code.google.com/p/v8/issues/detail?id=1072
// We should throw an error here and QSVP::property should return an error value.
// But because of the v8 bug, tryCatch in QSVP doesn't catch the error and obtain as a result
// an empty handler.
// v8::ThrowException(err);
v8::Local<v8::Value> err = v8::Exception::TypeError(msg);
engine()->setException(err);
if (error) {
*error = err;
}
}
return m_cppObject.data();
}
inline QObject *QScriptQObjectData::cppObject(const Mode mode) const
{
if (mode == IgnoreException)
return m_cppObject.data();
return cppObject();
}
inline QScriptEngine::ValueOwnership QScriptQObjectData::ownership() const
{
return m_own;
}
inline QScriptEngine::QObjectWrapOptions QScriptQObjectData::options() const
{
return m_opt;
}
/*!
Returns a QScriptable if the object is a QScriptable, else, return 0
\internal
*/
inline QScriptable *QScriptQObjectData::toQScriptable()
{
Q_ASSERT(m_cppObject);
void *ptr = m_cppObject.data()->qt_metacast("QScriptable");
return reinterpret_cast<QScriptable*>(ptr);
}
inline QtMetaObjectData::QtMetaObjectData(QScriptEnginePrivate *engine, const QMetaObject *mo, v8::Handle<v8::Value> ctor)
: QtData<QtMetaObjectData>(engine)
, m_metaObject(mo)
, m_ctor(v8::Persistent<v8::Value>::New(ctor))
{
Q_ASSERT(!ctor.IsEmpty());
}
inline QtMetaObjectData::~QtMetaObjectData()
{
if (!engine()->isDestroyed())
m_ctor.Dispose();
}
inline const QMetaObject *QtMetaObjectData::metaObject() const
{
return m_metaObject;
}
inline v8::Handle<v8::Value> QtMetaObjectData::constructor() const
{
return m_ctor;
}
inline QtVariantData::QtVariantData(QScriptEnginePrivate *engine, const QVariant &value)
: QtData<QtVariantData>(engine)
, m_value(value)
{}
inline QVariant &QtVariantData::value()
{
return m_value;
}
inline void QtVariantData::setValue(const QVariant &value)
{
m_value = value;
}
QT_END_NAMESPACE
#endif // QSCRIPTQOBJECT_IMPL_P_H
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