/*

* Copyright (c) 2002 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:  This class is used for stoptime controlling

*

*/

//  INCLUDE FILES

#include <jdebug.h>

#include <e32std.h>

#include "cmmastoptimecontrol.h"

#include "cmmaplayer.h"

_LIT(KControlName, "StopTimeControl");

_LIT(KMMAStopTimeControlError, "StopTimeControl Symbian OS error: %d");

const TInt KMMAStopTimeControlErrorLength = 50;

CMMAStopTimeControl::CStopTimer* CMMAStopTimeControl::CStopTimer::NewL(

    CMMAStopTimeControl* aControl)

{

    CStopTimer* self = new(ELeave) CStopTimer(aControl);

    CleanupStack::PushL(self);

    self->ConstructL();

    CleanupStack::Pop(self);

    return self;

}

CMMAStopTimeControl::CStopTimer::CStopTimer(CMMAStopTimeControl* aControl)

        : CTimer(CActive::EPriorityStandard)

{

    iControl = aControl;

}

void CMMAStopTimeControl::CStopTimer::ConstructL()

{

    CTimer::ConstructL();

    CActiveScheduler::Add(this);

}

void CMMAStopTimeControl::CStopTimer::RunL()

{

    DEBUG("MMA:CMMAStopTimeControl:CStopTimer:RunL timer triggered");

    iControl->StopAtTimeL();

}

const TDesC& CMMAStopTimeControl::ClassName() const

{

    return KControlName;

}

CMMAStopTimeControl* CMMAStopTimeControl::NewL(CMMAPlayer* aPlayer)

{

    CMMAStopTimeControl* control =

        new(ELeave) CMMAStopTimeControl(aPlayer);

    CleanupStack::PushL(control);

    control->ConstructL();

    CleanupStack::Pop(); // control

    return control;

}

CMMAStopTimeControl::~CMMAStopTimeControl()

{

    delete iTimer;

}

CMMAStopTimeControl::CMMAStopTimeControl(CMMAPlayer* aPlayer)

        : iPlayer(aPlayer), iNoTimer((MAKE_TINT64(KMaxTInt, KMaxTUint)))

{

    iStopTime = iNoTimer;

}

void CMMAStopTimeControl::ConstructL()

{

    iTimer = CStopTimer::NewL(this);

    iPlayer->AddStateListenerL(this);

}

void CMMAStopTimeControl::StaticGetStopTime(CMMAStopTimeControl* aControl,

        TInt64* aTime)

{

    aControl->GetStopTime(*aTime);

}

void CMMAStopTimeControl::StaticSetStopTimeL(CMMAStopTimeControl* aControl,

        TInt64* aTime)

{

    aControl->SetStopTimeL(*aTime);

}

void CMMAStopTimeControl::StopAtTimeL()

{

    DEBUG("MMA:CMMAStopTimeControl::StopAtTime");

    // Stop the player only when it's playing

    if (iPlayer->State() == CMMAPlayer::EStarted)

    {

        TInt64 time;

        iPlayer->GetMediaTime(&time);

        if (time >= 0 && time < iStopTime)

        {

            DEBUG_INT("MMA:CMMAStopTimeControl::StopAtTime - Called %dms too early",

                      I64INT((time - iStopTime)/1000));

            StartTimer(time);

            return;

        }

        TInt64 stopTime;

        // MediaTime is known

        if (time >= 0)

        {

            DEBUG_INT("MMA:CMMAStopTimeControl::StopAtTime - called %dms late", I64INT((time - iStopTime)/1000));

            stopTime = time;

        }

        else

        {

            // Use the requested time

            stopTime = iStopTime;

        }

        iPlayer->StopL(EFalse);

        // Inform the player that it's "stopped at time"

        iPlayer->PostLongEvent(CMMAPlayerEvent::EStoppedAtTime, stopTime);

        iStopTime = iNoTimer; // Timer is reseted

    }

}

/**

 * Get stop time, in microseconds

 */

void CMMAStopTimeControl::GetStopTime(TInt64& aTime)

{

    aTime = iStopTime;

}

/**

 * Set stop time, in microseconds

 * @param aTime is iNoTimer if the timer should be reseted

 */

void CMMAStopTimeControl::SetStopTimeL(const TInt64& aTime)

{

    iStopTime = aTime;

    if (aTime != iNoTimer)

    {

        DEBUG_INT("MMA:CMMAStopTimeControl:SetStopTime(%dms)",

                  I64INT(aTime / 1000));

        if (iPlayer->State() == CMMAPlayer::EStarted)

        {

            TInt64 currentTime(0);

            iPlayer->GetMediaTime(&currentTime);

            StartTimer(currentTime);

        }

    }

    else

    {

        DEBUG("MMA:CMMAStopTimeControl:SetStopTime(RESET)");

        iTimer->Cancel();

    }

}

/*

 * Start timer

 * @param aCurrentTime current position of the player

 */

void CMMAStopTimeControl::StartTimer(const TInt64& aCurrentTime)

{

    // StopTime is defined

    TInt64 time = iStopTime - aCurrentTime;

    DEBUG_INT("MMA:CMMAStopTimeControl:StartTimer timer started; time=%dms",

              I64INT(time / 1000));

    iTimer->Cancel();

    if (time >= 0)

    {

        // Value is too large to represent with TInt

        // use the biggest possible value instead

        if (I64HIGH(time) != 0 || I64INT(time) < 0)

        {

            time = KMaxTInt;

        }

        iTimer->After(TTimeIntervalMicroSeconds32(I64INT(time)));

    }

    else

    {

        // Stop the player immediatelly

        TRAPD(err,  StopAtTimeL());

        if (err != KErrNone)

        {

            TBuf< KMMAStopTimeControlErrorLength > errorMsg;

            errorMsg.Format(KMMAStopTimeControlError, err);

            iPlayer->PostStringEvent(CMMAPlayerEvent::EError,

                                     errorMsg);

        }

    }

}

void CMMAStopTimeControl::StateChanged(TInt aState)

{

    switch ((CMMAPlayer::TPlayerState) aState)

    {

    case CMMAPlayer::EStarted:

    {

        if (iStopTime != iNoTimer)

        {

            // (Re)start the timer

            TInt64 time;

            iPlayer->GetMediaTime(&time);

            StartTimer(time);

        }

        break;

    }

    case CMMAPlayer::ERealized:

    case CMMAPlayer::EPrefetched:

    case CMMAPlayer::EClosed:

    {

        // Player is not running anymore

        iTimer->Cancel();

        break;

    }

    default:

    {

        // other states are ignored

    }

    }

}

//  END OF FILE