/*

* Copyright (c) 2006-2009 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:  ConnMon Telephony watcher.

*

*/

#ifndef CONNMONTELNOTI_H

#define CONNMONTELNOTI_H

#include <etelpckt.h>

#include <etelmm.h>

/**

 * Connection Monitor Server Telephony watcher observer.

 * @lib CONNMON.LIB

 */

class MConnMonTelephonyObserver

    {

public:

    /**

     * Notifies the observer that the phone line status has changed.

     */

    virtual void PhoneLineStatusChange() = 0;

    };

/**

 * Connection Monitor Server Telephony watcher.

 * @lib CONNMON.LIB

 */

NONSHARABLE_CLASS( CConnMonTelNotifier ) : public CActive

    {

public:

    /**

     * Two-phased constructor.

     *

     * @param aObserver A refernce to the observer which wants to listen to the

     * notifications.

     * @param aMobilePhone A pointer to a RMobilePhone instance, which has been

     * initialized fully.

     * @return An initialized instance of this class.

     */

    static CConnMonTelNotifier* NewL(

            MConnMonTelephonyObserver& aObserver,

            RMobilePhone* aMobilePhone );

    /**

     * Destructor.

     */

    virtual ~CConnMonTelNotifier();

public:

    /**

     * Checks if phone call is active.

     * @return ETrue phone call is active, otherwice EFalse.

     */

    TBool IsCallActive() const;

    /**

     * Starts to notify client of the events.

     */

    void Receive();

    /**

     * Cancels notifying the the events.

     */

    void CancelNotifications();

protected:

    /**

     * From CActive. Cancels request.

     */

    void DoCancel();

    /**

     * From CActive. Run when request completes.

     */

    void RunL();

private:

    /**

    * Constructor.

    *

    * @param aObserver A refernce to the observer which wants to listen to the

    * notifications.

    * @param aMobilePhone A pointer to a RMobilePhone instance, which has been

    * initialized fully.

    */

    CConnMonTelNotifier(

            MConnMonTelephonyObserver& aObserver,

            RMobilePhone* aMobilePhone );

    /**

     * 2nd phase constructor.

     */

    void Construct();

private:

    RMobilePhone* iMobilePhone;

    TBool iVoiceCallActive;

    RCall::TStatus iCallStatus;

    MConnMonTelephonyObserver& iObserver;

    // ETrue if client has called receive and wants the notifications. Only

    // affects the sending of the notifications not the receving.

    TBool iSendEvents;

    RLine iLine;

    };

#endif // CONNMONTELNOTI_H

// End-of-file