harvester/common/inc/mpropertyobserver.h
author Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
Tue, 31 Aug 2010 15:37:30 +0300
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/*
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* Copyright (c) 2008-2009 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:  Interface class.
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*
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*/
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#ifndef MPROPERTYWATCHER_H
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#define MPROPERTYWATCHER_H
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// SYSTEM INCLUDE
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#include <e32base.h>
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// CLASS DECLARATION 
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class MKeyObserver
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	{
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public:
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	/**
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	 * Factory method NotifyKeyAndStatusL
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	 * @param aKeyValue - observed key's value.
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	 * @param aPropertyCategory observed key's category.
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	 * @param aKey The P&S key to be watched.
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	 */
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	virtual void NotifyKeyL( 
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					const TInt aKeyValue,
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					const TUid aPropertyCategory,
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					const TUint aKey ) = 0;
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		};
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// CLASS DECLARATION
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class MKeyAndStatusObserver
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	{
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public:
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    /**
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     * Factory method NotifyKeyAndStatusL
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     * @param aKeyValue - observed key's value.
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     * @param aStatus - reference to iStatus.
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     * @param aPropertyCategory observed key's category.
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     * @param aKey he P&S key to be watched.
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     */
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	virtual void NotifyKeyAndStatusL( 
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				const TInt aKeyValue,
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				TRequestStatus& aStatus,
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				const TUid aPropertyCategory,
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				const TUint aKey ) = 0;
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	};
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#endif // MPROPERTYWATCHER_H