/*

 * Copyright (c) 2010 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: Starts and stops audio streams.

 *

 */

#ifndef TMSHandler_H

#define TMSHandler_H

#include <e32base.h>

#include "mcsptimerobserver.h"

#include <tms.h>

#include <tmsstreamobsrvr.h>

namespace TMS {

//FORWARD DECLARATIONS

class TMSFactory;

class TMSCall;

class TMSStream;

class TMSSource;

class TMSSink;

} //namespace TMS

using namespace TMS;

//FORWARD DECLARATIONS

class CSPTimer;

/**

 *  Starts and stops TMS audio streams.

 *  If the activation fails then there is a retry timer which

 *  will try the activation later.

 */

NONSHARABLE_CLASS(TmsHandler) : public CBase,

                                public MCSPTimerObserver,

                                public TMSStreamObserver

    {

public:

    /**

     * Two-phased constructing.

     */

    static TmsHandler* NewL();

    /**

     * Two-phased constructing.

     */

    static TmsHandler* NewLC();

    /**

     * C++ default destructor.

     */

    virtual ~TmsHandler();

    /**

     * Starts audio streams ie inits mic and speaker.

     */

    void StartStreams();

    /**

     * Stops audio streams ie shuts down mic and speaker.

     */

    void StopStreams();

    /**

     * From MCSPTimerObserver.

     * Notify from CSPTimer that timeout passed.

     */

    void TimerEvent();

protected:

    // Functions from base classes

    // From TMSStreamObserver

    void TMSStreamEvent(const TMSStream& stream, TMSSignalEvent event);

private:

    /**

     * C++ default constructor.

     */

    TmsHandler();

    void ConstructL();

    static TInt TimerCallBack(TAny* aThisPtr);

    void AudioStreamsStarted();

    void StartTimer();

    void StartMicAndSpeaker();

    TBool IsMicAndSpeakerStarted();

    gint CreateTMSCallControl();

    gint CreateFactory();

    gint CreateCall();

    gint CreateUplink();

    gint CreateDownlink();

    gint OpenUplink();

    gint OpenDownlink();

    gint CreateModemSource();

    gint AddModemSourceToStream();

    gint CreateModemSink();

    gint AddModemSinkToStream();

    gint CreateMicSource();

    gint AddMicSourceToStream();

    gint CreateSpeakerSink();

    gint AddSpeakerSinkToStream();

private:

    // data

    /**

     * Timer for retrying the activation of streams (mic & speaker) if

     * there was a failure in activation.

     * Own.

     */

    CSPTimer* iTimer;

    /**

     * Timeout value used with timer. Timeout value doubles every retry to

     * activate the streams.

     */

    TInt iTimeout;

    TMSFactory* iFactory;

    TMSCall* iTmsCall;

    TMSCallType iCallType;

    TMSStream* iTmsDnlink;

    TMSStream* iTmsUplink;

    TMSSource* iTmsMicSource;

    TMSSource* iTmsModemSource;

    TMSSink* iTmsSpeakerSink;

    TMSSink* iTmsModemSink;

    TBool iUplinkStarted;

    TBool iDnlinkStarted;

    };

#endif // TMSHANDLER_H