/*

* Copyright (c) 2002-2004 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:  This file contains the declaration of the default attrib of Download Mgr Server.

*

*/

#ifndef __DOWNLOADMGR_DEFATTRIB_H__

#define __DOWNLOADMGR_DEFATTRIB_H__

//  INCLUDES

#include <e32base.h>

// DATA TYPES

typedef TPckgBuf< TInt32 > THttpDownloadMgrIntegerBuf;

// CLASS DECLARATION

class CDefaultAttrib;

/**

*  Class for spack/unpack utils

*

*  @lib -

*  @since Series 60 2.8

*/

NONSHARABLE_CLASS( TDMgrUtils )

    {

    public:  // Constructor

        TDMgrUtils();

    public: // New functions

		/**

		* Get the next default/event attribute from the packed attribute list.

		* @param aAttrib unpacked attribute

        * @param aCount the next attribute to be unpack

        * @param aPackedAttribs packed attribute list

        * @return TBool.

		*/

        TBool NextAttribL( CDefaultAttrib* aAttrib,

                           const TDesC8& aPackedAttribs );

		/**

		* Allocate buffer for default attributes.

		* @param aAttrib unpacked attributes

        * @return HBufC8*.

		*/                          

        static HBufC8* AllocDefAttribBufLC( CArrayPtrFlat< CDefaultAttrib >* aAttribs );

		/**

		* Pack attributes.

		* @param aAttrib unpacked attributes

        * @return HBufC8*.

		*/         

        static HBufC8* PackedAttributesL( CArrayPtrFlat< CDefaultAttrib >* aAttribs );

		/**

		* Alloc and pack event attributes.

		* @param aUserData User data

		* @param aDownloadedSize Downloaded size

		* @param aAttrLength Attribute length

        * @return HBufC8*.

		*/

        static HBufC8* PackEventAttribL( TInt32 aUserData = 0,

                                         TInt32 aMODownloadedSize = 0,

                                         TInt32 aDownloadedSize = 0,

                                         TInt32 aMOAttrLength = 0,

                                         TInt32 aAttrLength = 0 );

		/**

		* Unpack event attributes.

		* @param aPack Package

		* @param aUserData User data

		* @param aDownloadedSize Downloaded size

		* @param aAttrLength Attribute length

        * @return None.

		*/        

        static void UnPackEventAttribL( const TDesC8& aPack,

                                        TInt32& aUserData,

                                        TInt32& aMODownloadedSize,

                                        TInt32& aDownloadedSize,

                                        TInt32& aMOAttrLength,

                                        TInt32& aAttrLength,

                                        TInt32& aMoIndex );

    public: // Members

        // utils used by the default/event attributes

        TPtrC8         iPtr;

        TInt           iCurrent;

    };

/**

*  Class for storing default attribute

*

*  @lib -

*  @since Series 60 2.8

*/

NONSHARABLE_CLASS( CDefaultAttrib ) : public CBase

    {

    public:

        /**

        *  Default attribute type

        *

        *  @lib -

        *  @since Series 60 2.8

        */

        enum TAttribType

            {

            EInt,

            EBool,

            EString8,

            EString16

            };

    public:  // Constructors and destructor

        /**

        * Two-phased constructors.

        */

        static CDefaultAttrib* NewL();

        static CDefaultAttrib* NewL( THttpDownloadAttrib aAttribute,

                                     TInt32              aValue );

        static CDefaultAttrib* NewL( THttpDownloadAttrib aAttribute,

                                     TBool               aValue );

        static CDefaultAttrib* NewL( THttpDownloadAttrib aAttribute,

                                     const TDesC8&       aValue );

        static CDefaultAttrib* NewL( THttpDownloadAttrib aAttribute,

                                     const TDesC16&      aValue );

        /**

        * Destructor.

        */

        virtual ~CDefaultAttrib();

    protected:

        /**

        * C++ default constructor.

        */

        CDefaultAttrib( THttpDownloadAttrib aAttribute, TAttribType aType );

        CDefaultAttrib();

        /**

        * By default Symbian 2nd phase constructors are private.

        */

        void ConstructL();

        void ConstructL( TInt32 aValue );

        void ConstructL( TBool aValue );

        void ConstructL( const TDesC8& aValue );

        void ConstructL( const TDesC16& aValue );

    public:

        TInt32 AsTInt32L() const;

        TBool AsTBoolL() const;

        TPtrC8 AsTPtrC8L() const;

        TPtrC16 AsTPtrC16L() const;

        void SetL( const TDesC8& aType, const TDesC8& aAttribute, const TDesC8& aValue );

        void Reset();

        void PackAttribute( TDes8& aPackage );

        TInt PackedAttribSize();

    public:    // Data

        // attribute name

        THttpDownloadAttrib iAttribute;

        // attribute type

        TAttribType         iType;

        // Possible attribute values

	    TInt32   iInt32;  // Storage for integer based data

	    TBool    iBool;   // Storage for TBool

	    HBufC8*  iBufC8;  // Storage for 8 bits buffer based data.

	    HBufC16* iBufC16; // Storage for 16 bits buffer based data.

    };

#endif      // __DOWNLOADMGR_DEFATTRIB_H__   

// End of File