/*

* Copyright (c) 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:  Helper class declaration for performing device discovery.

*

*/

#ifndef BTENGDEVICESEARCH_H

#define BTENGDEVICESEARCH_H

#include <btnotif.h>

#include <bt_sock.h>

#include "btengactive.h"

class MBTEngSdpResultReceiver;

/**

 *  Class CBTEngDeviceSearch

 *

 *  ?more_complete_description

 *

 *  @lib ?library

 *  @since S60 v3.2

 */

NONSHARABLE_CLASS( CBTEngDeviceSearch ) : public CBase, 

                                          public MBTEngActiveObserver

    {

public:

    /**

     * Two-phase constructor

     */

    static CBTEngDeviceSearch* NewL();

    /**

     * Destructor

     */

    virtual ~CBTEngDeviceSearch();

    /**

     * ?description

     *

     * @since S60 v3.2

     * @param ?arg1 ?description

     * @param ?arg2 ?description

     * @return ?description

     */

    TInt StartSearch( CBTDevice* aDevice, 

            TNameEntry* aNameEntry,

            const TBTDeviceClass& aDeviceClass, 

            MBTEngSdpResultReceiver* aNotifier );

    /**

     * ?description

     *

     * @since S60 v3.2

     * @param ?arg1 ?description

     * @param ?arg2 ?description

     * @return ?description

     */

    void CancelSearch();

    TInt GetEirServiceUUIDs( const TBTDevAddr& aAddr, 

            TNameEntry* aNameEntry,

                MBTEngSdpResultReceiver* aNotifier);    

    void CancelGetEirServiceUUIDs();

// from base class MBTEngActiveObserver

    /**

     * From MBTEngActiveObserver.

     * Callback to notify that an outstanding request has completed.

     *

     * @since S60 v3.2

     * @param ?arg1 ?description

     */

                                     TInt aStatus );

    /**

     * Callback to notify that an error has occurred in RunL.

     *

     * @since S60 v3.2

     * @param ?arg1 ?description

     */

private:

    /**

     * C++ default constructor

     */

    CBTEngDeviceSearch();

    /**

     * Symbian 2nd-phase constructor

     */

    void ConstructL();

    TInt DoGetDeviceEir(const TBTDevAddr& aAddr );

    void HandleDeviceSelectionResultL(TInt aErr);

    void HandleDeviceEirDataResult(TInt aErr);

    /**

     * Notifies the caller of the search result.

     */

    void NotifyClient(TInt aErr);

private:

    enum TClientRequest

        {

        EDeviceSearch,

        EGetDeviceEir

        };

private: // data

    /**

     * Hanlde to the search notifier.

     */

    RNotifier iNotifier;

    /**

     * Selection parameters package buffer.

     */

    TBTDeviceSelectionParamsPckg iSelectionPckg;

    /**

     * Response parameters package buffer.

     */

    TBTDeviceResponseParamsPckg iResponsePckg;

    /**

     * Our actual active object.

     * Own.

     */

    CBTEngActive* iActive;

    /**

     * Socket server for Host Resolver.

     * Own.

     */

    RSocketServ         iSocketServer; 

    /**

     * Hose Resolver to get cached EIR.

     * Own.

     */    

    RHostResolver       iHostResolver;

    /**

     * used for getting cached EIR.

     */

    TInquirySockAddr    iInquirySockAddr;

    /**

     * Client's object to store the results.

     * Not own.

     */

    CBTDevice* iDevice;

    /**

     * Client's object to store EIR data.

     * Not own.

     */

    TNameEntry* iNameEntry;

    /**

     * Reference to receiver of results.

     * Not own.

     */

    MBTEngSdpResultReceiver* iResultNotifier;

    TClientRequest iClientReq;

    };

#endif // BTENGDEVICESEARCH