/*

* Copyright (c) 2004 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:  Base class for WV attribute constructors.

*

*/

#ifndef CPENGWVATTRIBUTECONSTRUCTBASE_H

#define CPENGWVATTRIBUTECONSTRUCTBASE_H

//  INCLUDES

#include <E32Base.h>

#include "PEngWVCspVersion.h"

#include "MPEngPresenceAttrConstructorTypeImp.h"

//DATA TYPES

/**

 * Attribute WV CSP name entry.

 *

 * @since 3.0

 */

NONSHARABLE_CLASS( TWVCspAttributeNameEntry )

    {

public: //Data

    //OWN: CSP version id

    TPEngWVCspVersion   iCspVersion;

    //OWN: Attribute name for CSP version

    const TDesC8*   iName;

    //OWN: Attribute namespace for CSP version

    const TDesC8*   iNameSpace;

    };

/**

 * Helper macro for initializing

 * TWVCspAttributeNameEntry with standard _LIT8.

 *

 * @since 3.0

 */

#define LIT_AS_DESC8_PTR(aLit) (reinterpret_cast<TDesC8 const*>(&aLit.iTypeLength))

// Class definition

/**

 * Base class for WV attribute constructors.

 *

 * @lib PEngAttrLib

 * @since 3.0

 */

NONSHARABLE_CLASS( CPEngWVAttributeConstructBase ) : public CBase,

        public MPEngPresenceAttrConstructorTypeImp

    {

public:  // Constructors and destructor

    /**

     * Destructor.

     */

    virtual ~CPEngWVAttributeConstructBase();

    /**

     * C++ default constructor.

     */

    CPEngWVAttributeConstructBase( TPEngWVCspVersion aCurrentCspVer,

                                   const TWVCspAttributeNameEntry* aNameTable,

                                   TInt aTableCount );

public: // Functions from MPEngPresenceAttrConstructorTypeImp

    /**

     * From MPEngPresenceAttrConstructorTypeImp.

     *

     * @since 3.0

     */

    TInt GetProperty( TUint aPropertyName,

                      TUint aPropertyLevel,

                      TInt& aProperty ) const;

    TInt GetProperty( TUint aPropertyName,

                      TUint aPropertyLevel,

                      TDes8& aProperty ) const;

    TInt GetPropertyPtr( TUint aPropertyName,

                         TUint aPropertyLevel,

                         TPtrC16& aProperty ) const;

    TAny* TypeExtension( TUint32 aType );

    TInt GetCurrentCspName( TPtrC8& aAttributeName,

                            TPtrC8& aAttributeNameSpace ) const;

private: // New helpers

    /**

     * Gets the CSP name table index for given protocol version.

     *

     * @since 3.0

     * @param aCspVer The CSP version to get.

     * @return Valid index or KErrNotFound if

     * requested protocol isn't supported.

     */

    TInt ProtocolNameTableIndex( TPEngWVCspVersion aCspVer ) const;

private: //Data

    //OWN: Current WV CSP version.

    const TPEngWVCspVersion iCurrentCspVer;

    //OWN: CSP protocol name table

    const TWVCspAttributeNameEntry*    iCspNameTable;

    //OWN:CSP protocol name table entry count

    const TInt  iCspNameTableCount;

    };

#endif      //CPENGWVATTRIBUTECONSTRUCTBASE_H

//  End of File