/*

 * Copyright (c) 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: Telephony Multimedia Service

 *

 */

#ifndef TMSCSDEVSOUND_H

#define TMSCSDEVSOUND_H

#include <sounddevice.h>

#include "tmstimer.h"

namespace TMS {

// FORWARD DECLARATIONS

class TMSTimer;

class TMSCSDevSoundObserver;

/**

 *  Wrapper for CMMFDevSound

 *

 */

NONSHARABLE_CLASS(TMSCSDevSound) : public CBase,

                                   public MDevSoundObserver,

                                   public TMSTimerObserver

    {

public:

    /**

     * Destructor.

     */

    virtual ~TMSCSDevSound();

    /**

     * Activates the DevSound stream.

     * Stream activation status is indicated by TMSCSDevSoundObserver callback

     * methods. If the stream is already active or being activated, call to

     * this will result in no action.

     */

    virtual void Activate(const gint retrytime);

    /**

     * Deactivates an active DevSound stream.

     */

    virtual void Deactivate(gboolean reset = TRUE);

    /*

     * Returns DevSound instance associated with the stream.

     */

    CMMFDevSound& DevSound();

    /**

     * From MDevSoundObserver

     * Indicates DevSound initialization status.

     */

    void InitializeComplete(TInt aError);

    /**

     * From MDevSoundObserver

     * Empty implementation

     */

    void BufferToBeFilled(CMMFBuffer* /*aBuffer*/) {}

    /**

     * From MDevSoundObserver

     * Empty implementation

     */

    void PlayError(TInt /*aError*/) {}

    /**

     * From MDevSoundObserver

     * Empty implementation

     */

    void ToneFinished(TInt /*aError*/) {}

    /**

     * From MDevSoundObserver

     * Empty implementation

     */

    void BufferToBeEmptied(CMMFBuffer* /*aBuffer*/) {}

    /**

     * From MDevSoundObserver

     * Empty implementation

     */

    void RecordError(TInt /*aError*/) {}

    /**

     * From MDevSoundObserver

     * Empty implementation

     */

    void ConvertError(TInt /*aError*/) {}

    /**

     * From MDevSoundObserver

     * Empty implementation

     */

    void DeviceMessage(TUid /*aMessageType*/, const TDesC8& /*aMsg*/) {}

    /*

     * From TMSTimerObserver.

     * Called upon timer timeout event.

     */

    void TimerEvent();

protected:

    TMSCSDevSound(TMSCSDevSoundObserver& observer);

    void ConstructL(const TMSStreamType strmtype, const gint retrytime);

    void InitializeL();

    void NotifyEvent(gint error);

    void StartTimer();

    void CancelTimer();

private:

    /**

     * Derived class has to activate the stream here.

     */

    virtual void DoActivateL() = 0;

protected:

    /**

     * Indication of DevSound activated state. TRUE == stream activated.

     * Derived class has to update this.

     */

    gboolean iActive;

    /**

     * Indication of an ongoing DevSound activation.

     * Derived class has to update this.

     */

    gboolean iActivationOngoing;

    /**

     * Devsound instance associated with the stream.

     */

    CMMFDevSound* iDevSound;

    /**

     * An observer subscribing to TMSCSDevSound notifications.

     */

    TMSCSDevSoundObserver& iObserver;

    TMSStreamType iStreamType;

    gint iPreference;

    gint iPriority;

    TMMFState iMode;

    /*

     * For retry timer

     */

    gint iInitRetryTime;

    gint iStartRetryTime;

    TMSTimer* iTimer;

    gint iPeriodic;

    gint iElapsedTime;

    };

} //namespace TMS

#endif //TMSCSDEVSOUND_H