/** @file

* Copyright (c) 2005-2006 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:  Class responsible for browsing in MS 

*

*/

#ifndef C_CUPNPBROWSECOMMAND_H

#define C_CUPNPBROWSECOMMAND_H

//  INCLUDES

#include "upnpcommand.h"

#include "upnpresponsehandler.h"

#include "upnpresolverobserver.h"

// FORWARD DECLARATIONS

class CUpnpPathResolver;

// CLASS DECLARATION

/**

* Class responsible for browsing MS structure.

* It perfroms request related to directory listings, 

* file/directory attributes

*

*  @since Series 60 3.1

*/

class CUpnpBrowseCommand : public CUpnpCommand, public MUpnpResponseHandler, 

                                        public MUpnpResolverObserver,

                                        public MUpnpHttpResponseHandler

	{

	public:	

		/**

		* Two-phased constructor.

		*

		* @param aAVCPManager manager

		* @param aSession server-side session

		* @param aMessage message

		*/	

		static CUpnpBrowseCommand* NewL(CUpnpAVCPManager& aAVCPManager, 

	  	CUpnpAVCPEngineSession& aSession, const RMessage2& aMessage);

		/**

		* Destructor.

		*/	       

		virtual ~CUpnpBrowseCommand();	       

	public:	// Method from CUpnpCommand

		/**

		* From CUpnpCommand returns session id.

		* It is also defined in MUpnpResponseHandler, MUpnpHttpResponseHandler

		* @since Series 60 3.1

		*/	

		TInt SessionId();	

		/**

		* From CUpnpCommand implement logic for leaves that appear during InterpretL.

		* It is also defined in MUpnpResponseHandler, MUpnpHttpResponseHandler

		* @since Series 60 3.1

		*/	

		void RunError(TInt aErrorCode); 				

		/**

		* From CUpnpCommand perfroms operation connected with command

		* @since Series 60 3.1

		*/							

		void ExecuteL();

		/**

		* From CUpnpCommand set result from previous performed command.

		* It sets result from directory listing.

		* @since Series 60 3.1

		*/	

		void SetResultL(const RMessage2& aMessage);

	public:	// Method from observers		

		/**

		* From MUpnpResponseHandler, it is notified when SOAP respone 

		* with relevant session id comes.

		* @param aErrorCode error code

		* @param aAction action with attached respone

		* @since Series 60 3.1

		*/	

		void InterpretL(TInt aErrorCode, CUpnpAction* aAction);

		/**

		* From MUpnpHttpResponseHandler, it is notified when HTTP respone 

		* with relevant session id comes.

		* @param aErrorCode error code

		* @param aMessage response message

		* @since Series 60 3.1

		*/			

		void InterpretL(TInt aErrorCode, CUpnpHttpMessage* aMessage);

		/**

		* From MUpnpResolverObserver, it is notified after translation path into id.

		* 

		* @param aErrorCode error code (KErrNone if Ok)

		* @param aIdElement object describing searched element

		* @since Series 60 3.1

		*/				

		void ResolvedIdL(TInt aErrCode, CUpnpPathElement* aIdElement);

	private:

		/**

		* C++ default constructor.

		*/

		CUpnpBrowseCommand(CUpnpAVCPManager& aAVCPManager, 

			CUpnpAVCPEngineSession& aSession, const RMessage2& aMessage);

		/**

		* Symbian 2nd phase constructor.

		*/			

		void ConstructL();

		/**

		* Helper function, iterate over list to find object with fiven name.

		* If it find correct object set its attribute to internal member of class.

		*

		* @param aList list infomrmation about object

		* @param aName name of object to find

		* @return ETrue - found, else EFalse

		*/

		TBool SetAttForObject(RArray<TFileInfo>& aList, const TDesC8& aName);

		/**

		* Prepare message with HTTP-HEAD and send it to specific address.

		* 

		* @param aUrl destination address 		

		*/

		void SendHeadRequestL(const TDesC8& aUrl); 

	private:

		// path resolver

		CUpnpPathResolver* iPathResolver;

		// object id taken from path specified by request				

		HBufC8* iObjectId;

		// object name taken from path specified by request						

		HBufC8* iObjectName;

		// start index, value used to not get whole browse response at once

		TInt iStartIndex;

		// structure used for keep information about file/directory attribute

		TFileInfo iAttr;

		// array of directory elements (files/directories)

    	RArray<TFileInfo> iResult;

};

#endif // C_CUPNPBROWSECOMMAND_H