diff -r b72c6db6890b -r 5dc02b23752f src/declarative/qml/qdeclarativeglobalscriptclass.cpp
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/declarative/qml/qdeclarativeglobalscriptclass.cpp	Tue Jul 06 15:10:48 2010 +0300
@@ -0,0 +1,136 @@
+/****************************************************************************
+**
+** Copyright (C) 2010 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.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** No Commercial Usage
+** This file contains pre-release code and may not be distributed.
+** You may use this file in accordance with the terms and conditions
+** contained in the Technology Preview License Agreement accompanying
+** this package.
+**
+** 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, 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.
+**
+** If you have questions regarding the use of this file, please contact
+** Nokia at qt-info@nokia.com.
+**
+**
+**
+**
+**
+**
+**
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#include "private/qdeclarativeglobalscriptclass_p.h"
+
+#include <QtScript/qscriptstring.h>
+#include <QtScript/qscriptengine.h>
+#include <QtScript/qscriptvalueiterator.h>
+
+QT_BEGIN_NAMESPACE
+
+/*
+    Used to prevent any writes to the global object.
+*/
+QDeclarativeGlobalScriptClass::QDeclarativeGlobalScriptClass(QScriptEngine *engine)
+: QScriptClass(engine)
+{
+    QString eval = QLatin1String("eval");
+
+    QScriptValue globalObject = engine->globalObject();
+
+    m_globalObject = engine->newObject();
+    QScriptValue newGlobalObject = engine->newObject();
+
+    QScriptValueIterator iter(globalObject);
+
+    while (iter.hasNext()) {
+        iter.next();
+
+        QString name = iter.name();
+
+        if (name != eval)
+            m_globalObject.setProperty(iter.scriptName(), iter.value());
+        newGlobalObject.setProperty(iter.scriptName(), iter.value());
+
+        m_illegalNames.insert(name);
+    }
+
+    newGlobalObject.setScriptClass(this);
+    engine->setGlobalObject(newGlobalObject);
+}
+
+QScriptClass::QueryFlags 
+QDeclarativeGlobalScriptClass::queryProperty(const QScriptValue &object,
+                                    const QScriptString &name,
+                                    QueryFlags flags, uint *id)
+{
+    Q_UNUSED(object);
+    Q_UNUSED(name);
+    Q_UNUSED(flags);
+    Q_UNUSED(id);
+    return HandlesReadAccess | HandlesWriteAccess;
+}
+
+QScriptValue 
+QDeclarativeGlobalScriptClass::property(const QScriptValue &object,
+                               const QScriptString &name, 
+                               uint id)
+{
+    Q_UNUSED(object);
+    Q_UNUSED(name);
+    Q_UNUSED(id);
+    return engine()->undefinedValue();
+}
+
+void QDeclarativeGlobalScriptClass::setProperty(QScriptValue &object, 
+                                       const QScriptString &name,
+                                       uint id, const QScriptValue &value)
+{
+    Q_UNUSED(object);
+    Q_UNUSED(id);
+    Q_UNUSED(value);
+    QString error = QLatin1String("Invalid write to global property \"") + 
+                    name.toString() + QLatin1Char('\"');
+    engine()->currentContext()->throwError(error);
+}
+
+/* This method is for the use of tst_qdeclarativeecmascript::callQtInvokables() only */
+void QDeclarativeGlobalScriptClass::explicitSetProperty(const QString &name, const QScriptValue &value)
+{
+    QScriptValue globalObject = engine()->globalObject();
+
+    QScriptValue v = engine()->newObject();
+
+    QScriptValueIterator iter(v);
+    while (iter.hasNext()) {
+        iter.next();
+        v.setProperty(iter.scriptName(), iter.value());
+    }
+
+    v.setProperty(name, value);
+    v.setScriptClass(this);
+
+    engine()->setGlobalObject(v);
+}
+
+QT_END_NAMESPACE
+