/*

* Copyright (c) 2004-2009 Nokia Corporation and/or its subsidiary(-ies).

* All rights reserved.

* This component and the accompanying materials are made available

* which accompanies this distribution, and is available

*

* Initial Contributors:

* Nokia Corporation - initial contribution.

*

* Contributors:

*

* Description:

* Name        : sipacceptheader.h

* Part of     : SIP Codec

* Interface   : SDK API, SIP Codec API

* Version     : SIP/4.0 

*

*/

#ifndef CSIPACCEPTHEADER_H

#define CSIPACCEPTHEADER_H

//  INCLUDES

#include "sipparameterheaderbase.h"

// FORWARD DECLARATIONS

class CSIPAcceptHeaderParams;

// CLASS DECLARATION

/**

* @publishedAll

* @released

*

* Class provides functions for setting and getting media types and

* parameters in SIP "Accept" header.

*

*  @lib sipcodec.lib

*/

class CSIPAcceptHeader : public CSIPParameterHeaderBase

	{

	public:	// Constructors and destructor

		/**

		* Constructs a CSIPAcceptHeader from textual representation 

		* of the header's value part.

		* An empty Accept-header can be created using this function

		* by passing a KNullDesC8 as a parameter.

		* @param aValue a value part of a "Accept"-header

		* @return an array containing one to many instances of CSIPAcceptHeader.

		*/

		IMPORT_C static RPointerArray<CSIPAcceptHeader> 

			DecodeL(const TDesC8& aValue);

		/**

		* Creates a new instance of CSIPAcceptHeader

		* @param aMediaType a media type to set. For example "application"

		* @param aMediaSubtype a media subtype to set. For example "sdp"

		* @return a new instance of CSIPAcceptHeader

		*/

		IMPORT_C static CSIPAcceptHeader* NewL(const TDesC8& aMediaType,

		                                       const TDesC8& aMediaSubtype);

		/**

		* Creates a new instance of CSIPAcceptHeader and puts it into 

		* the cleanup stack

		* @param aMediaType a media type to set. For example "application"

		* @param aMediaSubtype a media subtype to set. For example "sdp"

		* @return a new instance of CSIPAcceptHeader

		*/

		IMPORT_C static CSIPAcceptHeader* NewLC(const TDesC8& aMediaType,

		                                        const TDesC8& aMediaSubtype);

		/**

		* Destructor, deletes the resources of CSIPAcceptHeader.

		*/

		IMPORT_C ~CSIPAcceptHeader();

	public: // New functions

		/**

		* Check if the header is empty. If so, 

		* the other getters will not return a meaningful value.

		* @return ETrue if empty, EFalse otherwise.

		*/

		IMPORT_C TBool IsEmpty() const;

		/**

		* Gets the media type from the "Accept" header

		* @return a media type

		*/

		IMPORT_C const TDesC8& MediaType() const;

		/**

		* Sets the media type in the "Accept" header

		* @pre IsEmpty() == EFalse

		* @param aMediaType a media type

		*/

		IMPORT_C void SetMediaTypeL(const TDesC8& aMediaType);

		/**

		* Gets the media subtype from the "Accept" header

		* @return a media subtype

		*/

		IMPORT_C const TDesC8& MediaSubtype() const;

		/**

		* Sets the media subtype in the "Accept" header

		* @pre IsEmpty() == EFalse

		* @param aMediaSubtype a media subtype

		*/

		IMPORT_C void SetMediaSubtypeL(const TDesC8& aMediaSubtype);

		/**

		* Gets the value of "q"-parameter

		* @return the "q"-parameter value

		*/

		IMPORT_C TReal QParameter() const;

		/**

		* Sets the "q"-parameter value

		* @param aQValue a "q"-parameter value to set

		*/

		IMPORT_C void SetQParameterL(TReal aQValue);

		/**

		* Constructs an instance of a CSIPAcceptHeader from a RReadStream

		* @param aReadStream a stream containing the value of the

		*        externalized header object (header name not included).

		* @return An instance of a CSIPAcceptHeader

		*/

		IMPORT_C static CSIPHeaderBase* 

			InternalizeValueL(RReadStream& aReadStream);

	public: // From CSIPHeaderBase

		/**

		* From CSIPHeaderBase CloneL

		*/

		IMPORT_C CSIPHeaderBase* CloneL() const;

		/**

		* From CSIPHeaderBase Name

		*/

		IMPORT_C RStringF Name() const;

	public: // From CSIPHeaderBase, for internal use

        /**

        * @internalComponent

        */

		TBool MoreThanOneAllowed() const;

        /**

        * @internalComponent

        */		

		TPreferredPlace PreferredPlaceInMessage() const;

	public: // New functions, for internal use

		static RPointerArray<CSIPHeaderBase> BaseDecodeL(const TDesC8& aValue);

	private: // From CSIPHeaderBase

		void ExternalizeValueL(RWriteStream& aWriteStream) const;

	private: // From CSIPParameterHeaderBase

		HBufC8* ToTextMandatoryPartLC() const;

		void ParseMandatoryPartL(const TDesC8& aMandatoryPart);

		const CSIPParamContainerBase& Params() const;

		CSIPParamContainerBase& Params();

	private: // Constructors

		CSIPAcceptHeader(TBool aEmpty=EFalse);

		void ConstructL();

		void ConstructL(const TDesC8& aMediaType, const TDesC8& aMediaSubtype);

		void ConstructL(const CSIPAcceptHeader& aAcceptHeader);

	private: // New functions

		void DoInternalizeValueL(RReadStream& aReadStream);

	private: // Data

		TBool iEmpty;

		HBufC8* iMediaType;

		HBufC8* iMediaSubtype;

		CSIPAcceptHeaderParams* iParams;

	private: // For testing purposes

	};

#endif // CSIPACCEPTHEADER_H

// End of File