diff -r 000000000000 -r 16d8024aca5e src/hbcore/gui/hbdockwidget.cpp
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/hbcore/gui/hbdockwidget.cpp	Mon Apr 19 14:02:13 2010 +0300
@@ -0,0 +1,152 @@
+/****************************************************************************
+**
+** Copyright (C) 2008-2010 Nokia Corporation and/or its subsidiary(-ies).
+** All rights reserved.
+** Contact: Nokia Corporation (developer.feedback@nokia.com)
+**
+** This file is part of the HbCore module of the UI Extensions for Mobile.
+**
+** 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.
+**
+** If you have questions regarding the use of this file, please contact
+** Nokia at developer.feedback@nokia.com.
+**
+****************************************************************************/
+
+#include "hbdockwidget.h"
+#include "hbdockwidget_p.h"
+
+#include <QGraphicsSceneResizeEvent>
+
+/*!
+    @stable
+    @hbcore
+    \class HbDockWidget
+    \brief HbDockWidget represents a dock widget decorator.
+
+    The HbDockWidget class represents dock widget on each application. 
+    It provides interface for setting the widget.
+
+    The dock widget can be emptied with 0.
+*/
+
+/*!
+    \reimp
+    \fn int HbDockWidget::type() const
+ */
+
+HbDockWidgetPrivate::HbDockWidgetPrivate() :
+    HbWidgetPrivate(),
+    mWidget(0)
+{
+}
+
+HbDockWidgetPrivate::~HbDockWidgetPrivate()
+{
+}
+
+// ======== MEMBER FUNCTIONS ========
+
+/*!
+    Constructs a dock widget with \a parent.
+*/
+
+HbDockWidget::HbDockWidget( QGraphicsItem *parent )
+    : HbWidget( *new HbDockWidgetPrivate, parent )
+{
+    Q_D(HbDockWidget);
+    d->q_ptr = this;
+    setFlag( QGraphicsItem::ItemClipsChildrenToShape, true );
+}
+
+/*!
+    Protected constructor.
+*/
+HbDockWidget::HbDockWidget( HbDockWidgetPrivate &dd, QGraphicsItem *parent )
+    : HbWidget( dd, parent )
+{
+    Q_D(HbDockWidget);
+    d->q_ptr = this;
+    setFlag( QGraphicsItem::ItemClipsChildrenToShape, true );
+}
+
+/*!
+    Destructor
+ */
+HbDockWidget::~HbDockWidget()
+{
+    Q_D(HbDockWidget);
+    if ( d->mWidget != 0 ) {
+        d->mWidget->deleteLater();
+    }
+}
+
+/*!
+    Returns the widget for the dock widget. This function returns zero
+    if the widget has not been set.
+
+    \sa setWidget()
+*/
+QGraphicsWidget *HbDockWidget::widget() const
+{
+    Q_D( const HbDockWidget );
+    return d->mWidget;
+}
+
+/*!
+    Sets the widget for the dock widget to \a widget. Ownership of the widget \a widget is
+    transferred to dock widget.
+
+    \sa widget()
+*/
+void HbDockWidget::setWidget( QGraphicsWidget *widget )
+{
+    Q_D(HbDockWidget);
+    if ( d->mWidget != widget ) {
+        if ( d->mWidget != 0 ) {
+            d->mWidget->deleteLater();
+        }
+        d->mWidget = widget;
+        if ( d->mWidget != 0 ) {
+            d->mWidget->setParentItem(this);
+            style()->setItemName( d->mWidget, "content" );
+            QMetaObject::invokeMethod( &d->core, "visibilityChanged", Qt::QueuedConnection );
+        }
+    }
+}
+
+/*!
+    Emits visibilityChanged() whenever the dock widget's visibility or position changes.
+*/
+QVariant HbDockWidget::itemChange( GraphicsItemChange change, const QVariant &value )
+{
+    Q_D(HbDockWidget);
+    QVariant result = HbWidget::itemChange( change, value );
+
+    switch (change) {
+        case ItemVisibleHasChanged:
+            // Cannot emit signals directly from "itemChange", since it might
+            // lead to e.g. item deletion that's not allowed in "itemChange".
+            // Using QMetaObject to emit the signal asynchronously.
+            if ( d->polished ) {
+                QMetaObject::invokeMethod( &d->core, "visibilityChanged", Qt::QueuedConnection );
+            }
+            break;
+        default:
+            break;
+    }
+
+    return result;
+}
+
+#include "moc_hbdockwidget.cpp"