1 /*

     2 * Copyright (c) 2003-2009 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 the License "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 /** 

    20 @file 

    21 

    22 @publishedPartner

    23 @prototype

    24 */

    25 

    26 #ifndef __CAFHELPER_H__

    27 #define __CAFHELPER_H__

    28 

    29 #include <e32base.h>

    30 #include <f32file.h>

    31 

    32 namespace ContentAccess

    33 	{

    34 	//forward declaration

    35 	class MCAFHelperInterface;

    36 	

    37 	/**

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

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

    40 

    41 	 @publishedPartner

    42 	 @prototype

    43 	 */

    44 	 	

    45 	NONSHARABLE_CLASS(CCAFHelper) : public CBase

    46 		{

    47 	public:

    48 		

    49 		/** 

    50 		 Constructs a new CCAFHelper object.

    51 		 

    52 		 @return 		A pointer to an instance of CCAFHelper class.

    53 		 @capability	All -TCB. 

    54 		 */

    55 		 

    56 		IMPORT_C static CCAFHelper* NewL();

    57 		

    58 		/** 

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

    60 	 	 onto the cleanup stack..

    61 		 

    62 		 @return		A pointer to an instance of CCAFHelper class.

    63 		 @capability	All -TCB. 

    64 		 */

    65 		 

    66 		IMPORT_C static CCAFHelper* NewLC();

    67 		

    68 		/**

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

    70 		using which the error handling APIs can be accessed.

    71 		

    72 		@return		Reference to an instance of MCafHelperInterface class.

    73 		@capability	All -TCB. 

    74 		*/

    75 		

    76 		IMPORT_C MCAFHelperInterface& operator()() const;

    77 		

    78 		// virtual destructor.		

    79 		virtual ~CCAFHelper(); 

    80 		

    81 			

    82 		private:

    83 		

    84 		CCAFHelper();

    85 		void ConstructL();

    86 		

    87 		private:

    88 		

    89 		RLibrary iLibrary;

    90 		MCAFHelperInterface* iHelper;

    91 		};

    92 

    93 	} // namespace ContentAccess

    94 	

    95 #endif // __CAFHELPER_H__

    96