/*

* Copyright (c) 2004-2007 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:  Contains the CBtDiscover class definition. Bluetooth device discovery and SDP.

*

*/

#ifndef CBTDISCOVER_H

#define CBTDISCOVER_H

#include <btextnotifiers.h>

#include <btmanclient.h>

#include <obex.h>

#include <btsdp.h>

#include "e32base.h"

#include "tprinter.h"

#include "btprotocolconsts.h"

/**

  * \brief Implements Bluetooth device discovery and SDP.

  *

  * Implements Bluetooth device discovery and Service Discovery Protocol (SDP).

  * Uses the low-level Symbian interfaces for doing a Bluetooth device discovery,

  * allowing for more flexibility with the user interface. Results of the device discovery and

  * SDP request are stored in private variables until extracted by CRsBTDiscoverEngine

  * which owns the only instance of this class, and directs the asynchronous functionality.

  * \sa CRsBtDiscoverEngine

  */

NONSHARABLE_CLASS(CBtDiscover) : public CBase, public MSdpAgentNotifier

	{

		public:

			static CBtDiscover* NewL();

			virtual ~CBtDiscover();

			void Start(TRequestStatus& aStatus);

			void Stop();

			void Reset();

			TBool IsDoingSDP() const;

			TBool IsFindingDevices() const;

			TBool IsBPPSupported() const;

			TBool IsOPPSupported() const;

			void StopSDP();

			void GetNextDevice(TRequestStatus &aStatus);

			void GetSupportedServicesL(TRequestStatus &aStatus, TUint32 aServiceMask = -1);

			TBool SupportsContentType(const TDesC &aContType) const;

			void SetContentTypesL(const TPtrC8 &aString);

			void SetPrinterModelL(const TPtrC8 &aString);

			const TDesC& GetPrinterModel() const;

			void SetNameRecord(TNameRecord aNameRecord);

			TNameRecord GetNameRecord() const;

			const TDesC& GetDeviceName() const;

			TBTDeviceClass GetDeviceClass() const;

			TInt GetBPPPort() const;

			void SetBPPPort(TInt aPort);

			TInt GetSTSPort() const;

			void SetSTSPort(TInt aPort);

			TInt GetOPPPort() const;

			void SetOPPPort(TInt aPort);

			void SetVendor( TPrinter::TPrinterVendor aVendor );

			TPrinter::TPrinterVendor GetVendor() const;

		public: // From MSdpAgentNotifier

			void AttributeRequestComplete(TSdpServRecordHandle aHandle, TInt aError);

			void NextRecordRequestComplete(TInt aError, TSdpServRecordHandle aHandle, TInt aTotalRecordsCount);

			void AttributeRequestResult(TSdpServRecordHandle aHandle, TSdpAttributeID aAttrID, CSdpAttrValue* aAttrValue);

		private:

			CBtDiscover();

			void ConstructL();

			void StartSDPL();

			void AttributeRequestResultL( TSdpAttributeID aAttrID, CSdpAttrValue* aValue );

			void GetNextAttributeL(TSdpServRecordHandle aHandle);

		public:

			TSdpAttributeID iCurrentSDPAttrID;

			TUint           iCurrentServiceUUID;

			TBool 			iFoundSTS;

			TBool 			iWantedService;

		private:

			// internal flags

			// operation flags

			TBool iDoingSDP;

			TBool iFindingDevices;

			CSdpAgent* iAgent;

			TRequestStatus *iRequestStatus;

			CSdpSearchPattern* iSdpSearchPattern;

			CSdpAttrIdMatchList* iMatchList;

			HBufC* iContentTypes;

			RSocketServ iSocketServ;

			RHostResolver iHostResolver;

			// device data

			TNameEntry iNameEntry;

			TInquirySockAddr iSockAddr;

			HBufC* iPrinterModel;

			TPrinter::TPrinterVendor iVendor;

			TInt iBPPPort;

			TInt iSTSPort;

			TInt iOPPPort;

	};

/**

  * \brief Enumerate the values in a SDP response attribute list.

  *

  * Used to parse attributes from the structured data returned by a Bluetooth

  * Service Discovery Protocol request.

  */

class CBTAttribValVisitor : public CBase, public MSdpAttributeValueVisitor

	{

	public:

		static CBTAttribValVisitor* NewLC( CBtDiscover& aDiscover );

		~CBTAttribValVisitor();

	public: // from MSdpAttributeValueVisitor

		void VisitAttributeValueL(CSdpAttrValue& aValue, TSdpElementType aType);

		void StartListL(CSdpAttrValueList& aList);

		void EndListL();

	private:

		CBTAttribValVisitor( CBtDiscover& aDiscover );

		void CheckUuid( const TUUID& aUuid );

		void CheckUint( const TUint& aValue );

		void CheckVendor( const TDesC8& aVendor );

	private:

		CBtDiscover& iDiscover;

	};

#endif // CBTDISCOVER_H

//  End of File