diff -r ba76fc04e6c2 -r 6b911d05207e phoneapp/phoneuiqtviewadapter/inc/phonevisibilityhandler.h
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/phoneapp/phoneuiqtviewadapter/inc/phonevisibilityhandler.h	Wed Jun 23 18:12:20 2010 +0300
@@ -0,0 +1,122 @@
+/*
+* Copyright (c) 2010 Nokia Corporation and/or its subsidiary(-ies). 
+* All rights reserved.
+* This component and the accompanying materials are made available
+* under the terms of "Eclipse Public License v1.0"
+* which accompanies this distribution, and is available
+* at the URL "http://www.eclipse.org/legal/epl-v10.html".
+*
+* Initial Contributors:
+* Nokia Corporation - initial contribution.
+*
+* Contributors:
+*
+* Description: Adjusts visibility of Phone app in device lock situations.
+*
+*/
+
+#ifndef PHONEVISIBILITYHANDLER_H
+#define PHONEVISIBILITYHANDLER_H
+
+#include <QObject>
+
+#include "mphonepubsubobserver.h"
+#include <qvaluespacesubscriber.h>
+#include <qvaluespacepublisher.h>
+
+using namespace QtMobility;
+
+class CEikonEnv;
+class PhoneUIQtViewIF;
+
+/*!
+ * \class PhoneVisibilityHandler
+ * \brief Adjusts visibility of Phone application in device lock situations.
+*/
+class PhoneVisibilityHandler : 
+    public QObject,
+    public MPhonePubSubObserver
+{
+    Q_OBJECT
+    
+    enum AdjustAction {
+        ForceOnTop,
+        BringForwards,
+        KeepCurrentPos,
+        SendToBack
+    };
+
+public:
+    
+    /**
+     * Constructor.
+     */
+    PhoneVisibilityHandler(PhoneUIQtViewIF &view, QObject *parent = 0);
+
+    /**
+     * Destructor.
+     */
+    ~PhoneVisibilityHandler();
+
+public:
+    /**
+     * Control visiblity
+     */
+    void bringToForeground();
+    void sendToBackground(bool homeScreenForeground);
+    void hideDeviceDialogs(bool hide);
+    
+    int ordinalPosition();
+    
+public: // from MPhonePubSubObserver
+
+    /**
+    * This function is called when there is property value change.
+    * @param aCategory Category of the property
+    * @param aKey Property key that is changed
+    * @param aValue New property value
+    */
+    void HandlePropertyChangedL( 
+        const TUid& aCategory,
+        const TUint aKey,
+        const TInt aValue);
+        
+private:
+
+    /**
+     * Adjusts visibility based on current call and device security statuses.
+     */
+    void adjustVisibility(AdjustAction action);
+    
+private slots:
+
+    /**
+     * QValueSpaceSubscriber has notified that Car Mode value has changed by calling this slot.
+     */
+    void carModeChanged();
+    
+private:
+    /** Phone view */
+    PhoneUIQtViewIF &m_view;
+    
+    /** Cached pointer to Eikon environment. Not own.*/
+    CEikonEnv *m_eikonEnv;
+    
+    /** Car mode effects visibility */
+    bool m_carModeEnabled;
+    
+    /** Hide device dialogs */
+    bool m_hideDeviceDialogs;
+    
+    /** Device lock enabled */
+    bool m_deviceLockEnabled;
+    
+    /** Subscribes to Car Mode changes */
+    QValueSpaceSubscriber* m_carModeSubscriber;
+    
+    /** Car Mode publisher */
+    QValueSpacePublisher* m_carModePublisher;
+    
+};
+
+#endif // PHONEVISIBILITYHANDLER_H