// Copyright (c) 2007-2009 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:

 //

 /**

  @file

  @publishedPartner 

  @released

 */

 #ifndef MSYNCCISUPPORT_H

 #define MSYNCCISUPPORT_H

 #include <e32base.h>

 #include <a3f/a3fbase.h>

 const TUid KUidExtensionInferface = { 0x1028348B };

 /**

  * An interface to get notifications from Custom Interface state change.

  */

 class MCustomInterfaceSupportObserver

 	{

 public:

 	/* *

 	 * Called to state that CI is being removed use depends on which type of CI is involved.

 	 * @param aUid the Uid of the CI.

 	 *

 	 * @param aPtr on returns contains a pointer to the CI.

 	 */

 	virtual void CustomInterfaceRemoval(TUid aInterfaceUid, TAny* aPtr) = 0;

 	};

 /**

  * An interface to get Custom Interface.

  */

 class MCustomInterfaceSupport

 	{

 public:

 	/**

 	 * Request custom interface associated with aUid. 

 	 * Whether multiple calls returns the same pointer and/or

 	 * ownership is transferred depends on the specific uid. 

 	 *

 	 * @param aUid the Uid of the CI .

 	 * @param aPtr on returns contains a pointer to the CI.

 	 */

 	virtual TInt RequestCustomInterface(TUid aUid, TAny*& aPtr) = 0;

 	/**

 	 * Registers an interface support observer.

 	 *

 	 * The observer will be notified when the custom interface has been removed .

 	 *

 	 * @param aObserver the observer reference to register.

 	 * @return An error code. KErrNone on success, otherwise one of the system wide error codes.

 	 */

 	virtual TInt RegisterObserver(MCustomInterfaceSupportObserver& aObserver) = 0;

 	/**

 	 * Unregisters an interface support observer.

 	 * 

 	 * @param aObserver the observer reference to unregister.

 	 * @return An error code. KErrNone on success, otherwise one of the system wide error codes.

  	 */

 	virtual void UnRegisterObserver(MCustomInterfaceSupportObserver& aObserver) = 0; 

 	};

 #endif  // MSYNCCISUPPORT_H