/*

* Copyright (c) 2003-2009 Nokia Corporation and/or its subsidiary(-ies).

* All rights reserved.

* This component and the accompanying materials are made available

* under the terms of the License "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 __CAFHELPER_H__

#define __CAFHELPER_H__

#include <e32base.h>

#include <f32file.h>

namespace ContentAccess

	{

	//forward declaration

	class MCAFHelperInterface;

	/**

	 CAF client application can use this class to load cafhelper.dll and get access to entry function pointer

	 of the dll,using which the appropriate error handling APIs can be called.

	 @publishedPartner

	 @released

	 */

	NONSHARABLE_CLASS(CCAFHelper) : public CBase

		{

	public:

		/** 

		 Constructs a new CCAFHelper object.

		 @return 		A pointer to an instance of CCAFHelper class.

		 @capability	All -TCB. 

		 */

		IMPORT_C static CCAFHelper* NewL();

		/** 

		 Constructs a new CCAFHelper object and puts a pointer to the new object 

	 	 onto the cleanup stack..

		 @return		A pointer to an instance of CCAFHelper class.

		 @capability	All -TCB. 

		 */

		IMPORT_C static CCAFHelper* NewLC();

		/**

		Accessor method which returns an entry point function pointer of cafhelper.dll,

		using which the error handling APIs can be accessed.

		@return		Reference to an instance of MCafHelperInterface class.

		@capability	All -TCB. 

		*/

		IMPORT_C MCAFHelperInterface& operator()() const;

		// virtual destructor.		

		virtual ~CCAFHelper(); 

		private:

		CCAFHelper();

		void ConstructL();

		private:

		RLibrary iLibrary;

		MCAFHelperInterface* iHelper;

		};

	} // namespace ContentAccess

#endif // __CAFHELPER_H__