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+/****************************************************************************
+**
+** Copyright (C) 2012 Nokia Corporation and/or its subsidiary(-ies).
+** Contact: http://www.qt-project.org/
+**
+** This file is part of the QtQml 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
+** 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, 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.
+**
+**
+**
+**
+**
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#ifndef QV8CONTEXTWRAPPER_P_H
+#define QV8CONTEXTWRAPPER_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 <private/qv8_p.h>
+
+QT_BEGIN_NAMESPACE
+
+class QUrl;
+class QObject;
+class QV8Engine;
+class QQmlContextData;
+class QV8ContextWrapper 
+{
+public:
+    QV8ContextWrapper();
+    ~QV8ContextWrapper();
+
+    void init(QV8Engine *);
+    void destroy();
+
+    v8::Local<v8::Object> qmlScope(QQmlContextData *ctxt, QObject *scope);
+    v8::Local<v8::Object> urlScope(const QUrl &);
+
+    void setReadOnly(v8::Handle<v8::Object>, bool);
+
+    void addSubContext(v8::Handle<v8::Object> qmlglobal, v8::Handle<v8::Script>, 
+                       QQmlContextData *ctxt);
+
+    // XXX We only use the secondary scope to pass the "arguments" of the signal to
+    // on<SignalName> properties.  Instead of doing this we should rewrite the 
+    // JavaScript closure function to accept these arguments as named parameters.
+    // To keep backwards compatibility we have to check that the argument names are
+    // not members of the QV8Engine::illegalNames() set.
+    QObject *setSecondaryScope(v8::Handle<v8::Object>, QObject *);
+
+    QQmlContextData *callingContext();
+    QQmlContextData *context(v8::Handle<v8::Value>);
+
+    inline v8::Handle<v8::Object> sharedContext() const;
+
+private:
+    static v8::Handle<v8::Value> NullGetter(v8::Local<v8::String> property, 
+                                            const v8::AccessorInfo &info);
+    static v8::Handle<v8::Value> NullSetter(v8::Local<v8::String> property, 
+                                            v8::Local<v8::Value> value,
+                                            const v8::AccessorInfo &info);
+    static v8::Handle<v8::Value> Getter(v8::Local<v8::String> property, 
+                                        const v8::AccessorInfo &info);
+    static v8::Handle<v8::Value> Setter(v8::Local<v8::String> property, 
+                                        v8::Local<v8::Value> value,
+                                        const v8::AccessorInfo &info);
+
+    QV8Engine *m_engine;
+    v8::Persistent<v8::Function> m_constructor;
+    v8::Persistent<v8::Function> m_urlConstructor;
+    v8::Persistent<v8::Object> m_sharedContext;
+};
+
+v8::Handle<v8::Object> QV8ContextWrapper::sharedContext() const
+{
+    return m_sharedContext;
+}
+
+QT_END_NAMESPACE
+
+#endif // QV8CONTEXTWRAPPER_P_H
+