/*

* Copyright (c) 2004-2007 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 CSERVERDISCOVERYGUARD_H

#define CSERVERDISCOVERYGUARD_H

#include <e32base.h>

#include "imageprint.h"

#include "tdiscoveryguarddata.h"

class CImagePrintBody;

class TMessageWrp2;

class CServerDiscoveryGuard : public CBase, public MPrinterDiscoveryObserver

	{

	public:

		/**

		 *	2-phase constructor

		 *

		 *	@param aEngine printing engine

		 *	@return new object

		 */

		static CServerDiscoveryGuard* NewL( CImagePrintBody& aEngine );

		/**

		 *	Destructor		 

		 */

		~CServerDiscoveryGuard();

	private: // from MPrinterDiscoveryObserver

		void FoundPrinterL(const TPrinter& aPrinterInfo);			

		void DiscoveryStatusL(TInt aStatus, TInt aErrorCode, TInt aErrorStringCode);			

		void RemovePrinterL(const TPrinter& aPrinterInfo);

	public:

		/**

		 *	Start discovery and set this object as discovery events observer

		 *

		 *	@param aMessage message contains OR:ed protocol ids

		 */

		TInt StartL( TMessageWrp2& aMessage );

		/**

		 *	Continue waiting for discovery events

		 *

		 *	@param aMessage message completed upon event arrival

		 */

		void ContinueL( TMessageWrp2& aMessage );

		/**

		 *	Stop waiting for discovery events. Cancel waiting message

		 */

		void Stop();

	private:

		CServerDiscoveryGuard( CImagePrintBody& aEngine );

		void ConstructL();

		void ProcessL();

	private: // data

		CImagePrintBody& iEngine;

		TMessageWrp2* iMessage;

		RArray<TDiscoveryGuardData> iBuffer;

		TBool iRequestActive;

	};

#endif // CSERVERDISCOVERYGUARD_H

//  End of File