/*

* 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:  CMMAAudioStreamMetaDataControl is a concrete class for getting

*                metadata from an audio media.

*

*/

//  INCLUDE FILES

#include <jdebug.h>

#include "cmmaaudiostreammetadatacontrol.h"

CMMAAudioStreamMetaDataControl::CMMAAudioStreamMetaDataControl(

    CMetaDataUtility* aMetadaDataUtility)

{

    DEBUG("CMMAAudioStreamMetaDataControl constructor called.");

    // this class gets the ownership of MetaDataUtility

    iMetaDataUtility = aMetadaDataUtility;

}

CMMAAudioStreamMetaDataControl::~CMMAAudioStreamMetaDataControl()

{

    DEBUG("~CMMAAudioStreamMetaDataControl called.");

    delete iMetaDataUtility;

}

TInt CMMAAudioStreamMetaDataControl::KeyCountL()

{

    TInt entries = iMetaDataUtility->MetaDataCount();

    DEBUG_INT("MMA:CMMAAudioStreamMetaDataControl::KeyCountL, count = %d", entries);

    return entries;

}

HBufC* CMMAAudioStreamMetaDataControl::KeyL(TInt aIndex)

{

    DEBUG("MMA::CMMAAudioStreamMetaDataControl::KeyL +");

    HBufC* key = NULL;

    if (KeyCountL() > 0)

    {

        TMetaDataFieldId fieldId;

        const CMetaDataFieldContainer& fieldcontainer =

            iMetaDataUtility->MetaDataFieldsL();

        fieldcontainer.FieldIdAt(aIndex, fieldId);

        DEBUG_INT("MMA:CMMAAudioStreamMetaDataControl::KeyL, fieldId = %d", fieldId);

        key = GetKeyL(fieldId);

    }

    DEBUG("MMA::CMMAAudioStreamMetaDataControl::KeyL -");

    return key;

}

/*

 * Get the value of given audio metadata key. The ownership of the created value

 * (descriptor) is passed to the caller.

 */

HBufC* CMMAAudioStreamMetaDataControl::KeyValueL(const TDesC& aKey)

{

    DEBUG("MMA::CMMAAudioStreamMetaDataControl::KeyValueL +");

    HBufC* retVal = NULL;

    if (KeyCountL() > 0)

    {

        TBool found;

        TMetaDataFieldId fieldId = GetFieldId(aKey, found);

        if (found)

        {

            const CMetaDataFieldContainer& fieldcontainer =

                iMetaDataUtility->MetaDataFieldsL();

            retVal = (fieldcontainer.Field(fieldId)).AllocL();

        }

    }

    User::LeaveIfNull(retVal);

    DEBUG_STR("MMA::CMMAAudioStreamMetaDataControl::KeyValueL, retVal = %S", *retVal);

    DEBUG("MMA::CMMAAudioStreamMetaDataControl::KeyValueL -");

    return retVal;

}

/*

* Get key string for the given fieldId

*/

HBufC* CMMAAudioStreamMetaDataControl::GetKeyL(TMetaDataFieldId aFieldId)

{

    DEBUG("MMA::CMMAAudioStreamMetaDataControl::GetKeyL +");

    HBufC* keyString = NULL;

    TBuf<KKeyStringMaxLength> tempBuf;

    switch (aFieldId)

    {

    case EMetaDataSongTitle:

        tempBuf.Copy(KMetaDataSongTitle);

        keyString = tempBuf.AllocL();

        break;

    case EMetaDataArtist:

        tempBuf.Copy(KMetaDataArtist);

        keyString = tempBuf.AllocL();

        break;

    case EMetaDataAlbum:

        tempBuf.Copy(KMetaDataAlbum);

        keyString = tempBuf.AllocL();

        break;

    case EMetaDataYear:

        tempBuf.Copy(KMetaDataYear);

        keyString = tempBuf.AllocL();

        break;

    case EMetaDataAlbumTrack:

        tempBuf.Copy(KMetaDataAlbumTrack);

        keyString = tempBuf.AllocL();

        break;

    case EMetaDataGenre:

        tempBuf.Copy(KMetaDataGenre);

        keyString = tempBuf.AllocL();

        break;

    case EMetaDataComposer:

        tempBuf.Copy(KMetaDataComposer);

        keyString = tempBuf.AllocL();

        break;

    case EMetaDataCopyright:

        tempBuf.Copy(KMetaDataCopyright);

        keyString = tempBuf.AllocL();

        break;

    case EMetaDataOriginalArtist:

        tempBuf.Copy(KMetaDataOriginalArtist);

        keyString = tempBuf.AllocL();

        break;

    case EMetaDataUrl:

        tempBuf.Copy(KMetaDataUrl);

        keyString = tempBuf.AllocL();

        break;

    case EMetaDataUserUrl:

        tempBuf.Copy(KMetaDataUserUrl);

        keyString = tempBuf.AllocL();

        break;

    case EMetaDataJpeg:

        tempBuf.Copy(KMetaDataJpeg);

        keyString = tempBuf.AllocL();

        break;

    case EMetaDataVendor:

        tempBuf.Copy(KMetaDataVendor);

        keyString = tempBuf.AllocL();

        break;

    case EMetaDataRating:

        tempBuf.Copy(KMetaDataRating);

        keyString = tempBuf.AllocL();

        break;

    case EMetaDataUniqueFileIdentifier:

        tempBuf.Copy(KMetaDataUniqueFileIdentifier);

        keyString = tempBuf.AllocL();

        break;

    case EMetaDataDuration:

        tempBuf.Copy(KMetaDataDuration);

        keyString = tempBuf.AllocL();

        break;

    case EMetaDataDate:

        tempBuf.Copy(KMetaDataDate);

        keyString = tempBuf.AllocL();

        break;

    default:

        DEBUG("MMA::CMMAAudioStreamMetaDataControl::GetKeyL, default case should not occur");

    }

    DEBUG("MMA::CMMAAudioStreamMetaDataControl::GetKeyL -");

    return keyString;

}

/*

* Get fieldId for the given key string

*/

TMetaDataFieldId CMMAAudioStreamMetaDataControl::GetFieldId(const TDesC& aKey, TBool& aCompare)

{

    DEBUG("MMA::CMMAAudioStreamMetaDataControl::GetFieldId +");

    TMetaDataFieldId fieldId = EUnknownMetaDataField;

    aCompare = true; // found

    if (0 == aKey.Compare(KMetaDataSongTitle()))

    {

        fieldId = EMetaDataSongTitle;

    }

    else if (0 == aKey.Compare(KMetaDataArtist()))

    {

        fieldId = EMetaDataArtist;

    }

    else if (0 == aKey.Compare(KMetaDataAlbum()))

    {

        fieldId = EMetaDataAlbum;

    }

    else if (0 == aKey.Compare(KMetaDataArtist()))

    {

        fieldId = EMetaDataArtist;

    }

    else if (0 == aKey.Compare(KMetaDataYear()))

    {

        fieldId = EMetaDataYear;

    }

    else if (0 == aKey.Compare(KMetaDataComment()))

    {

        fieldId = EMetaDataComment;

    }

    else if (0 == aKey.Compare(KMetaDataAlbumTrack()))

    {

        fieldId = EMetaDataAlbumTrack;

    }

    else if (0 == aKey.Compare(KMetaDataGenre()))

    {

        fieldId = EMetaDataGenre;

    }

    else if (0 == aKey.Compare(KMetaDataComposer()))

    {

        fieldId = EMetaDataComposer;

    }

    else if (0 == aKey.Compare(KMetaDataCopyright()))

    {

        fieldId = EMetaDataCopyright;

    }

    else if (0 == aKey.Compare(KMetaDataOriginalArtist()))

    {

        fieldId = EMetaDataOriginalArtist;

    }

    else if (0 == aKey.Compare(KMetaDataUrl()))

    {

        fieldId = EMetaDataUrl;

    }

    else if (0 == aKey.Compare(KMetaDataUserUrl()))

    {

        fieldId = EMetaDataUserUrl;

    }

    else if (0 == aKey.Compare(KMetaDataJpeg()))

    {

        fieldId = EMetaDataJpeg;

    }

    else if (0 == aKey.Compare(KMetaDataVendor()))

    {

        fieldId = EMetaDataVendor;

    }

    else if (0 == aKey.Compare(KMetaDataRating()))

    {

        fieldId = EMetaDataRating;

    }

    else if (0 == aKey.Compare(KMetaDataUniqueFileIdentifier()))

    {

        fieldId = EMetaDataUniqueFileIdentifier;

    }

    else if (0 == aKey.Compare(KMetaDataDuration()))

    {

        fieldId = EMetaDataDuration;

    }

    else if (0 == aKey.Compare(KMetaDataDate()))

    {

        fieldId = EMetaDataDate;

    }

    else

    {

        aCompare = false; // not found

    }

    DEBUG("MMA::CMMAAudioStreamMetaDataControl::GetFieldId -");

    return fieldId;

}

//  END OF FILE