1 /*

     2 * Copyright (c) 2004-2007 Nokia Corporation and/or its subsidiary(-ies).

     3 * All rights reserved.

     4 * This component and the accompanying materials are made available

     5 * under the terms of "Eclipse Public License v1.0"

     6 * which accompanies this distribution, and is available

     7 * at the URL "http://www.eclipse.org/legal/epl-v10.html".

     8 *

     9 * Initial Contributors:

    10 * Nokia Corporation - initial contribution.

    11 *

    12 * Contributors:

    13 *

    14 * Description:  

    15 *

    16 */

    17 

    18 

    19 #ifndef CSERVERDISCOVERYGUARD_H

    20 #define CSERVERDISCOVERYGUARD_H

    21 

    22 #include <e32base.h>

    23 

    24 #include "imageprint.h"

    25 #include "tdiscoveryguarddata.h"

    26 

    27 class CImagePrintBody;

    28 class TMessageWrp2;

    29 

    30 class CServerDiscoveryGuard : public CBase, public MPrinterDiscoveryObserver

    31 	{

    32 	public:

    33 

    34 		/**

    35 		 *	2-phase constructor

    36 		 *

    37 		 *	@param aEngine printing engine

    38 		 *	@return new object

    39 		 */

    40 		static CServerDiscoveryGuard* NewL( CImagePrintBody& aEngine );

    41 		

    42 		/**

    43 		 *	Destructor		 

    44 		 */

    45 		~CServerDiscoveryGuard();

    46 

    47 	private: // from MPrinterDiscoveryObserver

    48 		

    49 		void FoundPrinterL(const TPrinter& aPrinterInfo);			

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

    51 		void RemovePrinterL(const TPrinter& aPrinterInfo);

    52 		

    53 	public:

    54 	

    55 		/**

    56 		 *	Start discovery and set this object as discovery events observer

    57 		 *

    58 		 *	@param aMessage message contains OR:ed protocol ids

    59 		 */

    60 		TInt StartL( TMessageWrp2& aMessage );

    61 		

    62 		/**

    63 		 *	Continue waiting for discovery events

    64 		 *

    65 		 *	@param aMessage message completed upon event arrival

    66 		 */

    67 		void ContinueL( TMessageWrp2& aMessage );

    68 		

    69 		/**

    70 		 *	Stop waiting for discovery events. Cancel waiting message

    71 		 */

    72 		void Stop();

    73 

    74 	private:

    75 

    76 		CServerDiscoveryGuard( CImagePrintBody& aEngine );

    77 		void ConstructL();

    78 		void ProcessL();

    79 		

    80 	private: // data

    81 	

    82 		CImagePrintBody& iEngine;

    83 		TMessageWrp2* iMessage;

    84 		RArray<TDiscoveryGuardData> iBuffer;

    85 		TBool iRequestActive;

    86 	};

    87 

    88 

    89 #endif // CSERVERDISCOVERYGUARD_H

    90 

    91 //  End of File