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/****************************************************************************
**
** Copyright (C) 2013 Digia Plc and/or its subsidiary(-ies).
** Contact: http://www.qt-project.org/legal
**
** This file is part of the QtQml module of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL$
** Commercial License Usage
** Licensees holding valid commercial Qt licenses may use this file in
** accordance with the commercial license agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and Digia. For licensing terms and
** conditions see http://qt.digia.com/licensing. For further information
** use the contact form at http://qt.digia.com/contact-us.
**
** GNU Lesser General Public License Usage
** Alternatively, 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.
**
** In addition, as a special exception, Digia gives you certain additional
** rights. These rights are described in the Digia 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.
**
**
** $QT_END_LICENSE$
**
****************************************************************************/
#ifndef QV8QOBJECTWRAPPER_P_H
#define QV8QOBJECTWRAPPER_P_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 <QtCore/qglobal.h>
#include <QtCore/qmetatype.h>
#include <QtCore/qpair.h>
#include <QtCore/qhash.h>
#include <private/qv8_p.h>
#include <private/qhashedstring_p.h>
#include <private/qqmldata_p.h>
#include <private/qqmlpropertycache_p.h>
#include <private/qintrusivelist_p.h>
#include "qv8objectresource_p.h"
#include <private/qv4value_p.h>
#include <private/qv4functionobject_p.h>
QT_BEGIN_NAMESPACE
class QObject;
class QV8Engine;
class QQmlData;
class QV8ObjectResource;
class QV8QObjectInstance;
class QV8QObjectConnectionList;
class QQmlPropertyCache;
namespace QV4 {
struct Q_QML_EXPORT QObjectWrapper : public QV4::Object
{
Q_MANAGED
enum RevisionMode { IgnoreRevision, CheckRevision };
QObjectWrapper(ExecutionEngine *v8Engine, QObject *object);
~QObjectWrapper();
QV8Engine *v8Engine; // ### Remove again.
QObject *object() const { return m_object.data(); }
void deleteQObject(bool deleteInstantly = false);
Value getProperty(ExecutionContext *ctx, String *name, RevisionMode revisionMode, bool *hasProperty = 0);
private:
QQmlGuard<QObject> m_object;
String *m_destroy;
String *m_toString;
static Value get(Managed *m, ExecutionContext *ctx, String *name, bool *hasProperty);
static void put(Managed *m, ExecutionContext *ctx, String *name, const Value &value);
static void markObjects(Managed *that);
static Value enumerateProperties(Object *m_object);
static void destroy(Managed *that)
{
static_cast<QObjectWrapper *>(that)->~QObjectWrapper();
}
};
struct QObjectMethod : public QV4::FunctionObject
{
Q_MANAGED
enum { DestroyMethod = -1, ToStringMethod = -2 };
QObjectMethod(QV4::ExecutionContext *scope, QObject *object, int index, const QV4::Value &qmlGlobal);
int methodIndex() const { return m_index; }
QObject *object() const { return m_object.data(); }
private:
QV4::Value method_toString(QV4::ExecutionContext *ctx);
QV4::Value method_destroy(QV4::ExecutionContext *ctx, Value *args, int argc);
QQmlGuard<QObject> m_object;
int m_index;
QV4::PersistentValue m_qmlGlobal;
static Value call(Managed *, ExecutionContext *context, const Value &thisObject, Value *args, int argc);
Value callInternal(ExecutionContext *context, const Value &thisObject, Value *args, int argc);
static void destroy(Managed *that)
{
static_cast<QObjectMethod *>(that)->~QObjectMethod();
}
};
struct QmlSignalHandler : public QV4::Object
{
Q_MANAGED
QmlSignalHandler(ExecutionEngine *engine, QObject *object, int signalIndex);
int signalIndex() const { return m_signalIndex; }
QObject *object() const { return m_object.data(); }
private:
QQmlGuard<QObject> m_object;
int m_signalIndex;
static void destroy(Managed *that)
{
static_cast<QmlSignalHandler *>(that)->~QmlSignalHandler();
}
};
}
class Q_QML_PRIVATE_EXPORT QV8QObjectWrapper
{
public:
QV8QObjectWrapper();
~QV8QObjectWrapper();
void init(QV8Engine *);
void destroy();
v8::Handle<v8::Value> newQObject(QObject *object);
inline v8::Handle<v8::Value> getProperty(QObject *, const QHashedV4String &, QQmlContextData *, QV4::QObjectWrapper::RevisionMode);
inline bool setProperty(QObject *, const QHashedV4String &, QQmlContextData *, v8::Handle<v8::Value>, QV4::QObjectWrapper::RevisionMode);
private:
friend class QQmlPropertyCache;
friend class QV8QObjectConnectionList;
friend class QV8QObjectInstance;
friend struct QV4::QObjectWrapper;
v8::Handle<v8::Object> newQObject(QObject *, QQmlData *, QV8Engine *);
static QV4::Value GetProperty(QV8Engine *, QObject *,
const QHashedV4String &, QQmlContextData *, QV4::QObjectWrapper::RevisionMode);
static bool SetProperty(QV8Engine *, QObject *, const QHashedV4String &, QQmlContextData *,
v8::Handle<v8::Value>, QV4::QObjectWrapper::RevisionMode);
static QV4::Value Connect(QV4::SimpleCallContext *ctx);
static QV4::Value Disconnect(QV4::SimpleCallContext *ctx);
static QPair<QObject *, int> ExtractQtMethod(QV8Engine *, QV4::FunctionObject *);
static QPair<QObject *, int> ExtractQtSignal(QV8Engine *, const QV4::Value &value);
QV8Engine *m_engine;
quint32 m_id;
QHash<QObject *, QV8QObjectConnectionList *> m_connections;
typedef QHash<QObject *, QV8QObjectInstance *> TaintedHash;
TaintedHash m_taintedObjects;
};
v8::Handle<v8::Value> QV8QObjectWrapper::getProperty(QObject *object, const QHashedV4String &string,
QQmlContextData *context, QV4::QObjectWrapper::RevisionMode mode)
{
QQmlData *dd = QQmlData::get(object, false);
if (!dd || !dd->propertyCache ||
dd->propertyCache->property(string, object, context)) {
return GetProperty(m_engine, object, string, context, mode);
} else {
return v8::Handle<v8::Value>();
}
}
bool QV8QObjectWrapper::setProperty(QObject *object, const QHashedV4String &string,
QQmlContextData *context, v8::Handle<v8::Value> value, QV4::QObjectWrapper::RevisionMode mode)
{
QQmlData *dd = QQmlData::get(object, false);
if (!dd || !dd->propertyCache ||
dd->propertyCache->property(string, object, context)) {
return SetProperty(m_engine, object, string, context, value, mode);
} else {
return false;
}
}
QT_END_NAMESPACE
#endif // QV8QOBJECTWRAPPER_P_H
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