/*

* 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 the License "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: 

*

*

*/

// INCLUDE FILES

#include <AknAppUi.h>

#include <e32math.h>

#include <BrowserNG.rsg>

#include <FeatMgr.h>

#include <stringloader.h>

// USER INCLUDES

#include "Display.h"

#include "ApiProvider.h"

#include "CommonConstants.h"  // for View Ids

#include "BrowserProgressIndicator.h"

#include "Logger.h"

#include "AknUtils.h"

// CONSTANTS

const TInt KGranularity = 4;

const TUint KkBLimit = 999;

const TUint KOnekB = 1024;

const TUint KOneMB = 1048580;

const TInt KMaxPercentage = 100;

const TInt KMBLimit = 10;

const TInt KMaxMBLimit = 100;

_LIT(text,"(%S) %S ");

_LIT(twoDecimals,"%2.2lf");

_LIT(oneDecimal, "%2.1lf");

_LIT(noDecimals, "%d");

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

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

// CBrowserProgressIndicator::NewL

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

//

CBrowserProgressIndicator* CBrowserProgressIndicator::NewL(

        MApiProvider& aApiProvider )

	{

	CBrowserProgressIndicator* self = new (ELeave)

	    CBrowserProgressIndicator( aApiProvider );

    CleanupStack::PushL( self );

    self->ConstructL();

    CleanupStack::Pop();

    return self;

	}

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

// CBrowserProgressIndicator::ConstructL

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

//

void CBrowserProgressIndicator::ConstructL()

    {

    iProgressData = new(ELeave) CArrayFixFlat<TProgressData>( KGranularity );

    iInitialDownloadIndicatorState = EFalse;

    HBufC* myKb = StringLoader::LoadL( R_WML_UNIT_KB );

    iMyKb = myKb->Alloc();

    delete myKb;

    HBufC* myMb = StringLoader::LoadL( R_WML_UNIT_MB );

    iMyMb = myMb->Alloc();

    delete myMb;

    }

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

// CBrowserProgressIndicator::CBrowserProgressIndicator

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

//

CBrowserProgressIndicator::CBrowserProgressIndicator(

        MApiProvider& aApiProvider ) : 

    iIsRunning( EFalse ),

    iApiProvider( aApiProvider ),

    iLastMaxEstimate( 0 ),

    iLastReceivedData( 0 )

	{

	}

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

// CBrowserProgressIndicator::~CBrowserProgressIndicator

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

//

CBrowserProgressIndicator::~CBrowserProgressIndicator()

	{

    delete iProgressData;

    delete iMyKb;

    delete iMyMb;

	}

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

// CBrowserProgressIndicator::AddTransActIdL

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

//

void CBrowserProgressIndicator::AddTransActIdL( TUint16 aId )

	{

    //Format each id at start point.

    AddProgressDataL(aId, 0, 0);

	}

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

// CBrowserProgressIndicator::DeleteProgressDataItem

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

//

void CBrowserProgressIndicator::DeleteProgressDataItem( TUint16 aId )

	{

    TKeyArrayFix key(0, ECmpTUint16);	

	TInt pos = 0;

	TProgressData data;

	data.iId = aId;

	TInt retVal = iProgressData->Find( data,key,pos );

    if ( retVal == KErrNone )

        {

        iProgressData->Delete( pos );

        }		

	}

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

// CBrowserProgressIndicator::TransActIdAmount()

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

//

TInt CBrowserProgressIndicator::TransActIdAmount() const

	{

    return iProgressData->Count();

	}

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

// CBrowserProgressIndicator::TransActIdAmountCompleted()

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

//

TInt CBrowserProgressIndicator::TransActIdAmountCompleted() const

    {

    TInt numOfCompleted( 0 );

    TInt i;

    for( i=0; i<TransActIdAmount(); ++i )

    {

        if( iProgressData->At( i ).iComplete )

            ++numOfCompleted;

    }

    return numOfCompleted;

    }

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

// CBrowserProgressIndicator::ResetValues()

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

//

void CBrowserProgressIndicator::ResetValues()

	{

	iProgressData->Reset();

    iProgressEstimate = 0;

	}

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

// CBrowserProgressIndicator::ReceivedData()

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

//

TUint32 CBrowserProgressIndicator::ReceivedData()

	{

	TUint32 recvdData = 0;

	for (TInt i = 0; i < iProgressData->Count();i++)

		{

		TProgressData data = iProgressData->At( i );

		recvdData += data.iRecvdData;

		}

	return recvdData;

	}

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

// CBrowserProgressIndicator::EstimateMaxData()

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

//

TUint32 CBrowserProgressIndicator::EstimateMaxData()

	{

	TUint32 maxData = 0;

    TInt count = 0;

    TUint32 estimation = 0;

	for ( TInt i = 0; i < iProgressData->Count();i++ )

		{

		TProgressData data = iProgressData->At( i );

        if( data.iMaxData )

            {

            maxData += data.iMaxData;

            count++;

            }

		}

     // estimate maximum data what will be received

     if ( count )

         {

         return estimation = ((maxData/count)* iProgressData->Count());

         }

	return estimation;

	}

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

// CBrowserProgressIndicator::TransActId()

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

//

TUint16 CBrowserProgressIndicator::TransActId( TInt aIndex )

	{

    return iProgressData->At( aIndex ).iId;

	}

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

// CBrowserProgressIndicator::AddProgressDataL()

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

//

void CBrowserProgressIndicator::AddProgressDataL( 

                     TUint16 aId, TUint32 aRecvdData, TUint32 aMaxData )

	{

	//Try to seek if current id exist in array

	TKeyArrayFix key(0, ECmpTUint16);

	TInt pos = 0;

	TProgressData data;

	data.iId = aId;

	TInt retVal = iProgressData->Find( data,key,pos );

	if ( retVal!=KErrNone ) //id was NOT found

		{

		//Add id, recvdData and maxData to array

		TProgressData data;

		data.iId = aId;

		data.iRecvdData = aRecvdData;		

        data.iMaxData = aMaxData;

        data.iComplete = EFalse;

        iProgressData->AppendL( data );

		}

	else

		{

        data = iProgressData->At( pos );

		if( ((data.iRecvdData != aRecvdData) && aRecvdData!=0 ) )

			{

			data.iRecvdData = aRecvdData;

            }

        if ( aMaxData!=0 ) 

            {

            data.iMaxData = aMaxData;

            }

        iProgressData->Delete( pos );

        iProgressData->InsertL( pos,data );	

		}

	}

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

// CBrowserProgressIndicator::TransActIdCompleteL()

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

//

void CBrowserProgressIndicator::TransActIdCompleteL( TUint16 aId )

    {

    TKeyArrayFix key( 0, ECmpTUint16 );	

	TInt pos = 0;

	TProgressData data;

	data.iId = aId;

	TInt retVal = iProgressData->Find( data,key,pos );

    if ( retVal == KErrNone && ! iProgressData->At(pos).iComplete )

        {

        data = iProgressData->At( pos );

        // we don't need this id anymore if both data values are empty

        if ( !data.iMaxData && !data.iRecvdData )

            {

            iProgressData->Delete( pos );

            }

        else 

            {

            data.iComplete = ETrue;

            if ( data.iMaxData > data.iRecvdData )

                {

                data.iRecvdData = data.iMaxData;

                }

            iProgressData->Delete( pos );

            iProgressData->InsertL( pos,data );

            }

       }

    }

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

// CBrowserProgressIndicator::EnquireStatusL()

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

//

void CBrowserProgressIndicator::EnquireStatusL()

	{

LOG_ENTERFN("EnquireStatusL");

    // Reset string storage.

	iPercentText.SetLength( 0 );

	iDataText.SetLength( 0 );

    iMBvalue.SetLength( 0 );

    TUint32 receivedData = ReceivedData();

    TUint32 maxEstimate = EstimateMaxData();

    if (receivedData == 0 || maxEstimate == 0)

        {

        // fake initial progress to reflect 5% downloaded and 0 kb received. 

        receivedData    =  5;

        maxEstimate     =  100;

        }

    //Calculate either kB-text or MB-text

    if ( ((receivedData)/KOnekB ) <= KkBLimit )

        {

        HBufC* kbUnit = HBufC::NewL( iMyKb->Length()+5 );

        TPtr ptr1( kbUnit->Des() );

        StringLoader::Format( ptr1, *iMyKb, -1, (receivedData)/KOnekB );

        AknTextUtils::DisplayTextLanguageSpecificNumberConversion(ptr1);

        iDataText.Copy( ptr1 );

        delete kbUnit;

        }

    else

        {

        TReal received( receivedData );

        TReal oneMB( KOneMB );

        TReal result( received / oneMB );

        // TUint32 result( receivedData / KOneMB );

        if ( result < KMBLimit )

            {

            // TUint32 res2( ( ( receivedData * 100 ) / KOneMB ) % 100 );

            // need to modify the format string too

            iMBvalue.Format( twoDecimals, result );

            }

        else if ( result < KMaxMBLimit )

            {

            // TUint32 res2( ( ( receivedData * 10 ) / KOneMB ) % 10 );

            // need to modify the format string too

            iMBvalue.Format( oneDecimal, result );

            }

        else if ( result > KMaxMBLimit)

            {

            TInt16 resultInt( 0 );

            Math::Int( resultInt, result );

            iMBvalue.Format( noDecimals, resultInt );

            }

        HBufC* mbUnit = HBufC::NewL( iMyMb->Length() + iMBvalue.Length() + 1 );

        TPtr ptr1( mbUnit->Des() );

        StringLoader::Format( ptr1, *iMyMb, -1, iMBvalue );

        AknTextUtils::DisplayTextLanguageSpecificNumberConversion(ptr1);

        iDataText.Copy( ptr1 );

        delete mbUnit;

        }

    // progress animation should be shown only in content view (not in bookmarks)

    if( iApiProvider.LastActiveViewId() == KUidBrowserContentViewId )

        {

        // Check all possible states.

        if ( !iInitialDownloadIndicatorState && maxEstimate <= 0 )

            {

            iInitialDownloadIndicatorState = ETrue;

            // The initial indicator state changed from EFalse to ETrue. Update it.

            iApiProvider.Display().UpdateFSDownloadInitialIndicator( ETrue );

            }

        else if ( !iInitialDownloadIndicatorState && 0 < maxEstimate )

            {

            //iInitialDownloadIndicatorState = EFalse; // Unnecessary statement.

            }

        else if ( iInitialDownloadIndicatorState && maxEstimate <= 0 )

            {

            //iInitialDownloadIndicatorState = ETrue; // Unnecessary statement.

            }

        else if ( iInitialDownloadIndicatorState && 0 < maxEstimate )

            {

            iInitialDownloadIndicatorState = EFalse;

            // The initial indicator state changed from ETrue to EFalse. Update it.

            iApiProvider.Display().UpdateFSDownloadInitialIndicator( EFalse );

            }

        iApiProvider.Display().UpdateFSProgressIndicator( maxEstimate, receivedData );

        // Render the downloaded data size.

        iApiProvider.Display().UpdateFSProgressDataL( iDataText );

        }

    else

        {

        // is this section really run?

        // Show how many percentage has been dowloaded

        if ( maxEstimate )

            {

            TReal received( receivedData );

            TReal maxEst( maxEstimate );

            TReal factor( 100 );

            TReal percentage( (received / maxEst) * factor );

            TInt16 percentInt( 0 );

            Math::Int( percentInt, percentage );

            if ( percentInt > KMaxPercentage )

                {

                percentInt = KMaxPercentage;

                }

            HBufC* percentUnit = 

                StringLoader::LoadLC( R_WML_UNIT_PERCENT, percentInt );

            iPercentText.Format( text, percentUnit, &iDataText );

            CleanupStack::PopAndDestroy( percentUnit ); //percentUnit

            //Update navi pane

            iApiProvider.UpdateNaviPaneL( iPercentText );

            }

        //Show amount of downloaded data (recvd data)

        //(if maximum data is not available)

        else

            {

            iApiProvider.UpdateNaviPaneL( iDataText );

            }

        }

	}

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

// CBrowserProgressIndicator::StartL()

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

//

void CBrowserProgressIndicator::StartL()

    {

    if ( !iIsRunning )

        {

        // clear progress bar data

        iLastMaxEstimate = 0;

        iLastReceivedData = 0;

        // progress animation should be shown 

        // only in content view (not in bookmarks)

        if( iApiProvider.LastActiveViewId() == KUidBrowserContentViewId )

            {

            //Start progress bar

            NotifyProgress();

            iInitialDownloadIndicatorState = ETrue;

            iApiProvider.Display().UpdateFSDownloadInitialIndicator( ETrue );

            // Show initially 0 kB as downloaded size.

            HBufC* kbUnit = HBufC::NewL( iMyKb->Length()+5 );

            TPtr ptr1( kbUnit->Des() );

            StringLoader::Format( ptr1, *iMyKb, -1, 0 );

            iDataText.Copy( ptr1 );

            delete kbUnit;

            iApiProvider.Display().UpdateFSProgressDataL( iDataText );

            }

        iIsRunning = ETrue;

        }

    }

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

// CBrowserProgressIndicator::StopL()

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

//

void CBrowserProgressIndicator::StopL()

    {

    if( iApiProvider.LastActiveViewId() == KUidBrowserContentViewId )

        {

        ResetValues();

        if( iInitialDownloadIndicatorState )

            {

            iInitialDownloadIndicatorState = EFalse;

            iApiProvider.Display().

                UpdateFSDownloadInitialIndicator( EFalse );

            }

        iApiProvider.Display().RestoreTitleL();

        }

    iIsRunning = EFalse;

    }

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

// CBrowserProgressIndicator::NotifyProgress()

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

//

void CBrowserProgressIndicator::NotifyProgress()

    {

    // Unfortunately we could not eliminate TRAP. The Engine cannot 

    // support a leavable NotifyProgressL() function.

    TRAP_IGNORE( EnquireStatusL() );

    }

//  End of File