/*

 * 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

 *

 */

// INCLUDE FILES

#include "tmsutility.h"

#include "tmsdtmftoneplayer.h"

// CONSTANTS

const gint KDTMFMaxBufSize = 64;

const gint KMaxVolumeLevel = 10;

_LIT(KPhoneTone_Asterisk, "*+w");

//from voip

const guint KDTMFToneLengthOn = 250000;

const guint KDTMFToneLengthOff = 50000;

const guint KDTMFToneLengthPause = 2500000;

using namespace TMS;

// -----------------------------------------------------------------------------

// TMSAudioDtmfTonePlayer::NewL

// Two-phased constructor.

// -----------------------------------------------------------------------------

//

TMSAudioDtmfTonePlayer* TMSAudioDtmfTonePlayer::NewL(

        TMSDTMFTonePlayerObserver& obsrvr, guint audioPreference,

        guint audioPriority)

    {

    TMSAudioDtmfTonePlayer* self = new (ELeave) TMSAudioDtmfTonePlayer(obsrvr,

            audioPreference, audioPriority);

    CleanupStack::PushL(self);

    self->ConstructL();

    CleanupStack::Pop(self);

    return self;

    }

//Destructor

TMSAudioDtmfTonePlayer::~TMSAudioDtmfTonePlayer()

    {

    TRACE_PRN_FN_ENT;

    Cancel();

    delete iDTMFPlayer;

    TRACE_PRN_FN_EXT;

    }

// -----------------------------------------------------------------------------

// TMSAudioDtmfTonePlayer::TMSAudioDtmfTonePlayer

// C++ default constructor can NOT contain any code, that

// might leave.

// -----------------------------------------------------------------------------

//

TMSAudioDtmfTonePlayer::TMSAudioDtmfTonePlayer(

        TMSDTMFTonePlayerObserver& obsrvr, guint audioPreference,

        guint audioPriority) :

    iObserver(obsrvr),

    iPref(audioPreference),

    iPrior(audioPriority)

    {

    TRACE_PRN_FN_ENT;

    TRACE_PRN_FN_EXT;

    }

// -----------------------------------------------------------------------------

// TMSAudioDtmfTonePlayer::ConstructL

// Symbian 2nd phase constructor can leave.

// -----------------------------------------------------------------------------

//

void TMSAudioDtmfTonePlayer::ConstructL()

    {

    TRACE_PRN_FN_ENT;

    TMMFPrioritySettings dtmfClickPlayerPrioritySettings;

    iDTMFPlayer = CMMFDevSound::NewL();

    iDTMFPlayer->InitializeL(*this, EMMFStateTonePlaying);

    TRACE_PRN_FN_EXT;

    }

// -----------------------------------------------------------------------------

// TMSAudioDtmfTonePlayer::SetVolume

// Sets the volume level that is used when the dtmf tone is played.

// -----------------------------------------------------------------------------

//

void TMSAudioDtmfTonePlayer::SetVolume(gint volume)

    {

    TRACE_PRN_FN_ENT;

    gint vol = ConvertVolumeLevel(volume);

    if (vol != iVolume)

        {

        iVolume = vol;

        iDTMFPlayer->SetVolume(iVolume);

        }

    TRACE_PRN_FN_EXT;

    }

// -----------------------------------------------------------------------------

// TMSAudioDtmfTonePlayer::PlayDtmfTone

// Searches the given DTMF tone from iToneArray and calls PlayCurrentTone

// member function.

// -----------------------------------------------------------------------------

//

void TMSAudioDtmfTonePlayer::PlayDtmfTone(TDes& tone)

    {

    TRACE_PRN_FN_ENT;

    Cancel();

    // DTMF signaling.

    if (iDTMFPlayer)

        {

        TBuf<KDTMFMaxBufSize> key;

        key.Append(tone);

        TRAP_IGNORE(iDTMFPlayer->PlayDTMFStringL(tone));

        }

    TRACE_PRN_FN_EXT;

    }

// -----------------------------------------------------------------------------

// TMSAudioDtmfTonePlayer::Cancel

// Cancels the currently playing tone.

// -----------------------------------------------------------------------------

//

void TMSAudioDtmfTonePlayer::Cancel()

    {

    TRACE_PRN_FN_ENT;

    iDTMFPlayer->Stop();

    TRACE_PRN_FN_EXT;

    }

// -----------------------------------------------------------------------------

// TMSAudioDtmfTonePlayer::Normalize

// Lowers case for chars and if its '*','+', or 'w' sets it to asterisk

// char ('*').

// -----------------------------------------------------------------------------

//

void TMSAudioDtmfTonePlayer::Normalize(TChar& tone)

    {

    TRACE_PRN_FN_ENT;

    tone.LowerCase();

    TPtrC ast(KPhoneTone_Asterisk);

    if (ast.Locate(tone) != KErrNotFound)

        {

        tone = ast[0];

        }

    TRACE_PRN_FN_EXT;

    }

// -----------------------------------------------------------------------------

// TMSAudioDtmfTonePlayer::InitializeComplete

// -----------------------------------------------------------------------------

//

void TMSAudioDtmfTonePlayer::InitializeComplete(TInt aError)

    {

    TRACE_PRN_FN_ENT;

    if (aError == KErrNone)

        {

        TMMFPrioritySettings dtmfPlayerSettings;

        dtmfPlayerSettings.iPref = iPref;

        dtmfPlayerSettings.iPriority = iPrior;

        dtmfPlayerSettings.iState = EMMFStateTonePlaying;

        iDTMFPlayer->SetPrioritySettings(dtmfPlayerSettings);

        TTimeIntervalMicroSeconds32 length(KDTMFToneLengthOn);

        TTimeIntervalMicroSeconds32 pause(KDTMFToneLengthOff);

        TTimeIntervalMicroSeconds32 zero(KDTMFToneLengthPause);

        iDTMFPlayer->SetDTMFLengths(length, pause, zero);

        iDTMFPlayer->SetVolume(iDTMFPlayer->MaxVolume());

        }

    iObserver.DTMFInitCompleted(aError);

    TRACE_PRN_IF_ERR(aError);

    TRACE_PRN_FN_EXT;

    }

// -----------------------------------------------------------------------------

// TMSAudioDtmfTonePlayer::ToneFinished

// -----------------------------------------------------------------------------

//

void TMSAudioDtmfTonePlayer::ToneFinished(TInt aError)

    {

    TRACE_PRN_FN_ENT;

    iObserver.DTMFToneFinished(aError);

    TRACE_PRN_IF_ERR(aError);

    TRACE_PRN_FN_EXT;

    }

// -----------------------------------------------------------------------------

// TMSAudioDtmfTonePlayer::ConvertVolumeLevel

// -----------------------------------------------------------------------------

//

gint TMSAudioDtmfTonePlayer::ConvertVolumeLevel(gint volume)

    {

    TRACE_PRN_FN_ENT;

    gint result = iDTMFPlayer->MaxVolume() * volume / KMaxVolumeLevel;

    TRACE_PRN_FN_EXT;

    return result;

    }