/*

 * Copyright (c) 2009 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 :

 *

 */

#ifndef TSWINDOWGROUPMONITOR_H

#define TSWINDOWGROUPMONITOR_H

#include "tswindowgroupsobserver.h"

/**

 * Window server monitor implementation.

 */

class CTsWindowGroupsMonitor: public CActive, 

                              public MTsWindowGroupsMonitor

{

public:

    /**

     * Two phase constructor

     */

    static CTsWindowGroupsMonitor* NewL(MTsResourceManager &);

    /**

     * Destructor

     */

    ~CTsWindowGroupsMonitor();

    /**

     * @see MTsWindowGroupsMonitor::SubscribeL

     */

    void SubscribeL(MTsWindowGroupsObserver &);

    /**

     * @see MTsWindowGroupsMonitor::Cancel

     */

    void Cancel(MTsWindowGroupsObserver &);

protected:

    /**

     * @see CActive::RunL

     */

    void RunL();

    /**

     * @see CActive::DoCancel

     */

    void DoCancel();

    /**

     * @see CActive::RunError

     */

    TInt RunError(TInt error);

private:

    /**

     * First phase constructor

     */

    CTsWindowGroupsMonitor(MTsResourceManager &);

    /**

     * Second phase constructor

     */

    void ConstructL();

    /**

     * Function subscribe for event to window server and activate object

     */

    void Subscribe();

    /**

     * Function provide window server event to observers

     */

    void ProvideEventL();

private:

    /**

     * Registry of subscribed observers

     */

    RPointerArray<MTsWindowGroupsObserver> iObservers;

    /**

     * Resources manager

     */

    MTsResourceManager &iResources;

    /**

     * Monitor window group

     */

    RWindowGroup iWg;

};

#endif//TSWINDOWGROUPMONITOR_H