musichomescreen/mcpmusicplayer/inc/pnsmonitor.h
author Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
Thu, 17 Dec 2009 08:45:05 +0200
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/*
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* Copyright (c) 2008-2008 Nokia Corporation and/or its subsidiary(-ies).
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* All rights reserved.
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* This component and the accompanying materials are made available
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* under the terms of "Eclipse Public License v1.0"
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* which accompanies this distribution, and is available
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* at the URL "http://www.eclipse.org/legal/epl-v10.html".
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*
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* Initial Contributors:
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* Nokia Corporation - initial contribution.
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*
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* Contributors:
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*
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* Description:  Monitors for publish and subscribe property.
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*
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*/
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#ifndef C_PNSMONITOR_H
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#define C_PNSMONITOR_H
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#include <e32base.h>
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class MPNSMonitorObserver;
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/**
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 *  publish and subscribe monitor class
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 *
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 *  @since S60 5.0
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 */
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NONSHARABLE_CLASS( CPNSMonitor ) : public CActive
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    {
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public:
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    /**
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    * Two-phased constructor
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    */
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    static CPNSMonitor* NewL( MPNSMonitorObserver& aObserver );
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    /**
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    * Virtual destructor
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    */
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    virtual ~CPNSMonitor();
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    /**
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    * Start monitoring a particular publish and subscribe property
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    */
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    void Start();
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protected:
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    /**
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    * From CActive
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    */
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    void RunL();
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    /**
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    * From CActive
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    */
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    void DoCancel();
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    /**
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    *  From CActive
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    */
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    TInt RunError( TInt aError );    
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private:
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    /**
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    * Private constructor
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    */
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    CPNSMonitor( MPNSMonitorObserver& aObserver );
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    /**
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    * 2nd phased constructor
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    */
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    void ConstructL();
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private: // data
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    MPNSMonitorObserver& iObserver;
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    RProperty iPropertyHandler;
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    };
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#endif // C_PNSMONITOR_H