diff -r b72c6db6890b -r 5dc02b23752f src/declarative/qml/qdeclarativeextensionplugin.cpp
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/declarative/qml/qdeclarativeextensionplugin.cpp	Tue Jul 06 15:10:48 2010 +0300
@@ -0,0 +1,120 @@
+/****************************************************************************
+**
+** 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 "qdeclarativeextensionplugin.h"
+
+QT_BEGIN_NAMESPACE
+
+/*!
+    \since 4.7
+    \class QDeclarativeExtensionPlugin
+    \brief The QDeclarativeExtensionPlugin class provides an abstract base for custom QML extension plugins.
+
+    \ingroup plugins
+
+    QDeclarativeExtensionPlugin is a plugin interface that makes it
+    possible to offer extensions that can be loaded dynamically into
+    applications using the QDeclarativeEngine class.
+
+    Writing a QML extension plugin is achieved by subclassing this
+    base class, reimplementing the pure virtual registerTypes()
+    function, and exporting the class using the Q_EXPORT_PLUGIN2()
+    macro.
+
+    QML extension plugins can be used to provide either application-specific or
+    library-like plugins. Library plugins should limit themselves to registering types,
+    as any manipulation of the engine's root context may cause conflicts
+    or other issues in the library user's code.
+
+    See \l {Tutorial: Writing QML extensions with C++} for details on creating
+    QML extensions, including how to build a plugin with with QDeclarativeExtensionPlugin.
+    For a simple overview, see the \l{declarative/cppextensions/plugins}{plugins} example.
+    
+    Also see \l {How to Create Qt Plugins} for general Qt plugin documentation.
+
+    \sa QDeclarativeEngine::importPlugin()
+*/
+
+/*!
+    \fn void QDeclarativeExtensionPlugin::registerTypes(const char *uri)
+
+    Registers the QML types in the given \a uri. Subclasses should implement
+    this to call qmlRegisterType() for all types which are provided by the extension
+    plugin.
+
+    The \a uri is an identifier for the plugin generated by the QML engine
+    based on the name and path of the extension's plugin library. 
+*/
+
+/*!
+    Constructs a QML extension plugin with the given \a parent.
+
+    Note that this constructor is invoked automatically by the
+    Q_EXPORT_PLUGIN2() macro, so there is no need for calling it
+    explicitly.
+*/
+QDeclarativeExtensionPlugin::QDeclarativeExtensionPlugin(QObject *parent)
+    : QObject(parent)
+{
+}
+
+/*!
+  Destroys the plugin.
+ */
+QDeclarativeExtensionPlugin::~QDeclarativeExtensionPlugin()
+{
+}
+
+/*!
+    \fn void QDeclarativeExtensionPlugin::initializeEngine(QDeclarativeEngine *engine, const char *uri)
+
+    Initializes the extension from the \a uri using the \a engine. Here an application
+    plugin might, for example, expose some data or objects to QML,
+    as context properties on the engine's root context.
+*/
+
+void QDeclarativeExtensionPlugin::initializeEngine(QDeclarativeEngine *engine, const char *uri)
+{
+    Q_UNUSED(engine);
+    Q_UNUSED(uri);
+}
+
+QT_END_NAMESPACE