/*

* Copyright (c) 2006-2007 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:  Video thumbnail provider

 *

*/

#include <e32base.h>

#include <ecom/ecom.h>

#include <implementationproxy.h>

#include <fbs.h>

#include "thumbnailvideoprovider.h"

#include "thumbnailmanageruids.hrh"

#include "thumbnailmanagerconstants.h"

#include "thumbnaillog.h"

#ifndef IMPLEMENTATION_PROXY_ENTRY

typedef TAny* TProxyNewLPtr;

#define IMPLEMENTATION_PROXY_ENTRY(aUid, aFuncPtr) \

{ {aUid}, static_cast<TProxyNewLPtr>(aFuncPtr) }

#endif 

// ======== MEMBER FUNCTIONS ========

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

// CThumbnailVideoProvider::NewL()

// Two-phased constructor.

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

//

CThumbnailVideoProvider* CThumbnailVideoProvider::NewL()

    {

    CThumbnailVideoProvider* self = new( ELeave )CThumbnailVideoProvider();

    return self;

    }

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

// CThumbnailImageProvider::CThumbnailImageProvider()

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

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

//

CThumbnailVideoProvider::CThumbnailVideoProvider():CActive( EPriorityStandard )

    {

    CActiveScheduler::Add( this );

    iTimer.CreateLocal();

    iTimeout = EFalse;

    TN_DEBUG1( "CThumbnailVideoProvider::CThumbnailVideoProvider()" );

    }

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

// CThumbnailVideoProvider::~CThumbnailVideoProvider()

// Destructor.

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

//

CThumbnailVideoProvider::~CThumbnailVideoProvider()

    {

    // run DoCancel even if not active

    if ( IsActive() )

        {

        Cancel();

        }

    else

        {

        DoCancel();

        }

    iTimer.Close();

    TN_DEBUG1( "CThumbnailVideoProvider::~CThumbnailVideoProvider()" );

    REComSession::DestroyedImplementation( iDtor_ID_Key );

    }

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

// CThumbnailVideoProvider::DoCancel()

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

//

void CThumbnailVideoProvider::DoCancel()

    {

    iTimer.Cancel();

    if ( iVideoClipInfo )

        {

        iVideoClipInfo->CancelThumb();

        delete iVideoClipInfo;

        iVideoClipInfo = NULL;

        }

    }

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

// CThumbnailImageDecoder::RunL()

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

//

void CThumbnailVideoProvider::RunL()

    {

    DoCancel();

    // video thumbnail engine doesn't respond

    if (iTimeout)

        {

        iObserver->ThumbnailProviderReady( KErrCompletion, NULL, TSize(), EFalse, EFalse);

        iTimeout = EFalse;

        TN_DEBUG1( "CThumbnailVideoProvider::RunL() - timeout" );

        }

    }

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

// CThumbnailVideoProvider::GetThumbnailL()

// Provides the thumbnail image of video clip

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

//

void CThumbnailVideoProvider::GetThumbnailL( RFs&  /*aFs*/, RFile64& aFile, const

    TDataType&  /*aMimeType*/, const CThumbnailManager::TThumbnailFlags aFlags,

    const TDisplayMode /*aDisplayMode*/, const CThumbnailManager::TThumbnailQualityPreference /*aQualityPreference */)

    {

    TN_DEBUG1( "CThumbnailVideoProvider::GetThumbnailL() start" );

    iFlags = aFlags;

	//set default mode displaymode from global constants

    iDisplayMode = KStoreDisplayMode;

    TFileName filename;

    User::LeaveIfError( aFile.FullName( filename ));

    TRAPD( err, iVideoClipInfo = CTNEVideoClipInfo::NewL( filename, * this ));

    if ( err != KErrNone )

        {

        User::Leave( KErrCorrupt );

        }

    TN_DEBUG1( "CThumbnailVideoProvider::GetThumbnailL() end" );

    }

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

// CThumbnailVideoProvider::GetThumbnailL()

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

//

void CThumbnailVideoProvider::GetThumbnailL( RFs& /*aFs*/, 

    TDesC8* /* aBuffer */,

    const TDataType& /* aMimeType */, 

    const CThumbnailManager::TThumbnailFlags /*aFlags*/,

    const TDisplayMode /* aDisplayMode */, 

    const CThumbnailManager::TThumbnailQualityPreference /*aQualityPreference */)

    {

    TN_DEBUG1( "CThumbnailVideoProvider::GetThumbnailL() - nothing to do" );

    }

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

// CThumbnailVideoProvider::GetThumbnailL()

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

//

void CThumbnailVideoProvider::GetThumbnailL( RFs& /*aFs*/, TDesC8& /*aBuffer*/)

    {

    TN_DEBUG1( "CThumbnailVideoProvider::GetThumbnailL() - nothing to do" );

    User::Leave( KErrNotSupported );

    }

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

// Cancel thumbnail request

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

//

void CThumbnailVideoProvider::CancelGetThumbnail()

    {

    // run DoCancel even if not active

    if ( IsActive() )

        {

        Cancel();

        }

    else

        {

        DoCancel();

        }

    }

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

// CThumbnailVideoProvider::NotifyVideoClipThumbCompleted()

// Used to notify when thumbnail image of video clip is ready

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

//

void CThumbnailVideoProvider::NotifyVideoClipThumbCompleted( CTNEVideoClipInfo&

    /*aInfo*/, TInt aError, CFbsBitmap* aThumb )

    {

    TN_DEBUG2( "CThumbnailVideoProvider::NotifyVideoClipThumbCompleted(aError=%d)", aError );

    iTimer.Cancel();

    iTimeout = EFalse;

    if (( aError == KErrNone ) && aThumb )

        {

        iOriginalSize = aThumb->SizeInPixels();

        }

    iObserver->ThumbnailProviderReady( aError, aThumb, iOriginalSize, EFalse, EFalse);

    }

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

// CThumbnailVideoProvider::NotifyVideoClipInfoReady()

// Used to notify when information of video clip is available

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

//

void CThumbnailVideoProvider::NotifyVideoClipInfoReady( CTNEVideoClipInfo&

    aInfo, TInt aError )

    {

    TN_DEBUG2( "CThumbnailVideoProvider::NotifyVideoClipInfoReady(aError=%d)", aError );

    if ( aError == KErrNone )

        {

        TInt err( KErrNone );

        // cannot determine target size, aspect ratio scaling fails

        TRAP( err, aInfo.GetThumbL( *this, KBestThumbIndex, NULL, iDisplayMode, ETrue ));

        if ( err != KErrNone )

            {

            TN_DEBUG2( "CThumbnailVideoProvider::NotifyVideoClipInfoReady() -- GetThumbL() left with %d", err );

            iObserver->ThumbnailProviderReady( err, NULL, TSize(), EFalse, EFalse);

            SetActive();

            TRequestStatus* statusPtr = &iStatus;

            User::RequestComplete( statusPtr, KErrNone ); 

            }

        else

            {

            // request timeout

            iTimeout = ETrue;

            iTimer.After(iStatus, KVideoDecoderTimeout);

            SetActive();

            }

        }

    else

        {

        iObserver->ThumbnailProviderReady( aError, NULL, TSize(), EFalse, EFalse);

        SetActive();

        TRequestStatus* statusPtr = &iStatus;

        User::RequestComplete( statusPtr, KErrNone );

        }

    }

// ======== GLOBAL FUNCTIONS ========

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

// ImplementationTable

// Define the interface UIDs

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

//

const TImplementationProxy ImplementationTable[] = 

    {

    IMPLEMENTATION_PROXY_ENTRY( THUMBNAIL_VIDEO_PROVIDER_IMP_UID,

        CThumbnailVideoProvider::NewL )

};

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

// ImplementationGroupProxy

// The one and only exported function that is the ECom entry point

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

//

EXPORT_C const TImplementationProxy* ImplementationGroupProxy( TInt&

    aTableCount )

    {

    aTableCount = sizeof( ImplementationTable ) / sizeof( TImplementationProxy );

    return ImplementationTable;

    }

// End of file