/*

* Copyright (c) 2007-2009 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:  Message header HTML

*

*/

#include <s32strm.h>

#include <f32file.h>

#include <s32file.h>

#include <e32cmn.h>

#include <utf.h>

#include <StringLoader.h>

#include <AknsUtils.h>

#include <AknsSkinInstance.h>

#include <AknsConstants.h>

#include <FreestyleEmailUi.rsg>

#include <finditemengine.h>

#include "FreestyleMessageHeaderHTML.h"

#include "FreestyleEmailUiUtilities.h"

#include "ncsconstants.h"

_LIT( KAlignRight, "right" );

_LIT( KAlignLeft, "left" );

_LIT( KRtl, "rtl" );

_LIT( KLtr, "ltr" );

const TInt KMaxRecipientsShown( 10 );

const TInt KFreestyleMessageHeaderHTMLRightMarginInPx( 10 );

_LIT8( KTableRowBegin, "<tr>" );

_LIT8( KTableRowEnd, "</tr>\n" );

_LIT8( KTableCellEnd, "</td>" );

_LIT( KSchemeSeparator, "://" );

_LIT( KUrlFormat, "<a href=\"%S\">%S</a>" );

_LIT( KUrlFormatWithHttp, "<a href=\"http://%S\">%S</a>" );

// Define this to allow theme colorin for the header

#define __USE_THEME_COLOR_FOR_HEADER    

EXPORT_C CFreestyleMessageHeaderHTML* CFreestyleMessageHeaderHTML::NewL( CFSMailMessage& aMailMessage, 

                                                                         RWriteStream& aWriteStream,

                                                                         TInt aVisibleWidth,

                                                                         TInt aScrollPosition,

                                                                         const TBool aAutoLoadImages,

                                                                         const TBitFlags& aFlags 

                                                                         )

    {

    CFreestyleMessageHeaderHTML* self = new (ELeave) CFreestyleMessageHeaderHTML( aMailMessage, aWriteStream, aVisibleWidth, aScrollPosition, aAutoLoadImages, aFlags);

    self->ConstructL();

    return self;

    }

EXPORT_C void CFreestyleMessageHeaderHTML::ExportL( CFSMailMessage& aMailMessage, 

                                                    RWriteStream& aWriteStream, 

                                                    TInt aVisibleWidth,

                                                    TInt aScrollPosition,

                                                    const TBool aAutoLoadImages,

                                                    const TBitFlags& aFlags )

    {

    CFreestyleMessageHeaderHTML* headerHtml = CFreestyleMessageHeaderHTML::NewL( aMailMessage, aWriteStream, aVisibleWidth, aScrollPosition, aAutoLoadImages, aFlags);

    CleanupStack::PushL( headerHtml );

    headerHtml->ExportL();

    CleanupStack::PopAndDestroy( headerHtml );

    }

EXPORT_C void CFreestyleMessageHeaderHTML::ExportL( CFSMailMessage& aMailMessage, 

                                                    RFile& aFile, 

                                                    TInt aVisibleWidth,

                                                    TInt aScrollPosition,

                                                    const TBool aAutoLoadImages,

                                                    const TBitFlags& aFlags )

    {

    RFileWriteStream fwstream;

    fwstream.Attach( aFile, 0 );

    CleanupClosePushL( fwstream );

    CFreestyleMessageHeaderHTML* headerHtml = CFreestyleMessageHeaderHTML::NewL( aMailMessage, fwstream, aVisibleWidth, aScrollPosition, aAutoLoadImages, aFlags );

    CleanupStack::PushL( headerHtml );

    headerHtml->ExportL();

    CleanupStack::PopAndDestroy( headerHtml );

    CleanupStack::PopAndDestroy( &fwstream );

    }

EXPORT_C void CFreestyleMessageHeaderHTML::ExportL( CFSMailMessage& aMailMessage, 

                                                    RFs& aFs, 

                                                    const TPath& aFilePath, 

                                                    TInt aVisibleWidth,

                                                    TInt aScrollPosition,

                                                    const TBool aAutoLoadImages,

                                                    const TBitFlags& aFlags )

    {

    RFileWriteStream fwstream;

    User::LeaveIfError( fwstream.Replace( aFs, aFilePath, EFileStreamText | EFileWrite) );

    CleanupClosePushL( fwstream );

    CFreestyleMessageHeaderHTML* headerHtml = CFreestyleMessageHeaderHTML::NewL( aMailMessage, fwstream, aVisibleWidth, aScrollPosition, aAutoLoadImages, aFlags);

    CleanupStack::PushL( headerHtml );

    headerHtml->ExportL();

    CleanupStack::PopAndDestroy( headerHtml );

    CleanupStack::PopAndDestroy( &fwstream );    

    }

CFreestyleMessageHeaderHTML::~CFreestyleMessageHeaderHTML()

    {

    iAttachments.ResetAndDestroy();

    }

CFreestyleMessageHeaderHTML::CFreestyleMessageHeaderHTML( CFSMailMessage& aMailMessage,  

                                                          RWriteStream& aWriteStream,

                                                          TInt aVisibleWidth,

                                                          TInt aScrollPosition,

                                                          const TBool aAutoLoadImages,

                                                          const TBitFlags& aFlags )

    : iMailMessage( aMailMessage ),

    iWriteStream( aWriteStream ),

    iVisibleWidth( aVisibleWidth - KFreestyleMessageHeaderHTMLRightMarginInPx ),

    iScrollPosition( aScrollPosition ),

    iExportFlags( aFlags )

    {

    iExportFlags.Assign( EAutoLoadImages, aAutoLoadImages );

    iExportFlags.Assign( EMirroredLayout, AknLayoutUtils::LayoutMirrored() );

    }

void CFreestyleMessageHeaderHTML::ConstructL()

    {

    iMailMessage.AttachmentListL( iAttachments );

    }

EXPORT_C void CFreestyleMessageHeaderHTML::ExportL() const

    {

    ExportBodyStyleL();

    ExportHTMLBodyStartL();

    ExportHeaderTablesL();

    ExportHTMLBodyEndL();    

    }

void CFreestyleMessageHeaderHTML::ExportHTMLBodyStartL() const

    {

    _LIT( KHtmlBodyStart, "<html dir=\"%S\" xmlns=\"http://www.w3.org/1999/xhtml\">\n<head>\n<meta http-equiv=\"Content-Type\" content=\"text/html; charset=UTF-8\">\n<title>Email Header</title>\n<script language=\"javascript\" src=\"header.js\"></script>\n<link rel=\"stylesheet\" type=\"text/css\" href=\"header.css\"/>\n</head>\n<body onLoad = \"init(%d)\">\n" );

    //_LIT( KHtmlBodyStart, "<html dir=\"%S\" xmlns=\"http://www.w3.org/1999/xhtml\">\n<head>\n<meta http-equiv=\"Content-Type\" content=\"text/html; charset=UTF-8\">\n<title>Email Header</title>\n<script language=\"javascript\" src=\"header.js\"></script>\n<link rel=\"stylesheet\" type=\"text/css\" href=\"header%d.css\"/>\n</head>\n<body onLoad = \"init(%d)\">\n" );

    const TPtrC direction(  iExportFlags.IsSet( EMirroredLayout ) ? KRtl() : KLtr() );

    HBufC* formatBuffer = HBufC::NewLC( KHtmlBodyStart().Length() + direction.Length() + 16 );

    formatBuffer->Des().Format( KHtmlBodyStart(), &direction, iScrollPosition );

    //formatBuffer->Des().Format( KHtmlBodyStart(), &direction, Math::Random() % 2, iScrollPosition );

    HBufC8* utf = CnvUtfConverter::ConvertFromUnicodeToUtf8L( *formatBuffer );

    CleanupStack::PushL( utf );

    iWriteStream.WriteL( *utf );

    CleanupStack::PopAndDestroy( 2 ); // formatBuffer, utf    

    iWriteStream.CommitL();

    }

void CFreestyleMessageHeaderHTML::ExportInnerTableBeginWithRowBeginL( const TDesC& aTableName, const TInt aColSpan, 

        const TBool aVisible, const TBitFlags& aFlags ) const

    {

    iWriteStream.WriteL( KTableRowBegin() );

    ExportTableVisibilityParameterL( aTableName, aVisible );

    ExportInnerTableBeginL( aTableName, aColSpan, aFlags );

    }

void CFreestyleMessageHeaderHTML::ExportInnerTableBeginL( const TDesC& aTableName, const TInt aColSpan, 

        const TBitFlags& aFlags ) const

    {

    _LIT( KHidden, " style=\"display: none;\"");

    _LIT( KFixed, " class=\"fixed\"");   

    _LIT( KTableHeader, "<td colspan=\"%d\"><table id=\"%S\" width=\"100%%\"%S%S>\n" );

    const TPtrC style( aFlags.IsClear( EHidden ) ? KNullDesC() : KHidden() );

    const TPtrC fixed( aFlags.IsClear( EFixed ) ? KNullDesC() : KFixed() );

    HBufC* formatBuffer = HBufC::NewLC( KTableHeader().Length() + aTableName.Length() + 16 + style.Length() + fixed.Length() );

    formatBuffer->Des().Format( KTableHeader(), aColSpan, &aTableName, &style, &fixed );

    HBufC8* utf = CnvUtfConverter::ConvertFromUnicodeToUtf8L( *formatBuffer );

    CleanupStack::PushL( utf );

    iWriteStream.WriteL( *utf );

    CleanupStack::PopAndDestroy( 2 ); // formatBuffer, utf    

    }

void CFreestyleMessageHeaderHTML::ExportTableVisibilityParameterL( const TDesC& aTableName, const TBitFlags& aFlags ) const

    {   

    ExportTableVisibilityParameterL( aTableName, aFlags.IsClear( EHidden ) );

    }

void CFreestyleMessageHeaderHTML::ExportTableVisibilityParameterL( const TDesC& aTableName, const TBool aVisible ) const

    {   

    _LIT( KTrue, "true" );

    _LIT( KFalse, "false" );

    _LIT( KVisibilityParameter, "<script type=\"text/javascript\">var is_%S_visible=%S;</script>" );

    const TPtrC visible( aVisible ? KTrue() : KFalse() );

    HBufC* formatBuffer = HBufC::NewLC( KVisibilityParameter().Length() + aTableName.Length() + visible.Length() );

    formatBuffer->Des().Format( KVisibilityParameter(), &aTableName, &visible );

    HBufC8* utf = CnvUtfConverter::ConvertFromUnicodeToUtf8L( *formatBuffer );

    CleanupStack::PushL( utf );

    iWriteStream.WriteL( *utf );        

    CleanupStack::PopAndDestroy( 2 ); // formatBuffer, utf

    }

void CFreestyleMessageHeaderHTML::ExportTableBeginL( const TDesC& aTableName, const TBitFlags& aFlags ) const

    {   

    _LIT( KFixed, " class=\"fixed\"");   

    _LIT( KTableHeader, "<table id=\"%S\" width=\"%dpx\"%S%S>\n" );

    const TPtrC style( aFlags.IsClear( EHidden ) ? KNullDesC() : KNullDesC() );

    const TPtrC fixed( aFlags.IsClear( EFixed ) ? KNullDesC() : KFixed() );

    ExportTableVisibilityParameterL( aTableName, aFlags );   

    HBufC* formatBuffer = HBufC::NewLC( KTableHeader().Length() + aTableName.Length() + 16 + style.Length() + fixed.Length() );

    formatBuffer->Des().Format( KTableHeader(), &aTableName, iVisibleWidth, &style, &fixed );

    HBufC8* utf = CnvUtfConverter::ConvertFromUnicodeToUtf8L( *formatBuffer );

    CleanupStack::PushL( utf );

    iWriteStream.WriteL( *utf );

    CleanupStack::PopAndDestroy( 2 ); // formatBuffer, utf    

    }

void CFreestyleMessageHeaderHTML::ExportInnerTableEndL() const

    {

    ExportTableEndL();

    iWriteStream.WriteL( KTableCellEnd() );

    }

void CFreestyleMessageHeaderHTML::ExportInnerTableEndWithRowEndL() const

    {

    ExportInnerTableEndL();

    iWriteStream.WriteL( KTableRowEnd() );

    }

void CFreestyleMessageHeaderHTML::ExportTableEndL() const

    {

    HBufC8* utf = CnvUtfConverter::ConvertFromUnicodeToUtf8L( _L("</table>\n") );

    CleanupStack::PushL( utf );

    iWriteStream.WriteL( *utf );

    CleanupStack::PopAndDestroy(); // utf    

    }

void CFreestyleMessageHeaderHTML::ExportSenderTableRowL( const TBool aCollapsed ) const

    {

    _LIT( KStyleExpand, "expand" );

    _LIT( KStyleCollapse, "collapse" );

    _LIT( KExpandFunction, "expandHeader(true)" );

    _LIT( KCollapseFunction, "collapseHeader(true)" );

    _LIT( KSenderFormat, "<tr><td align=\"%S\" class=\"sender_name\"><div class=\"truncate\">%S</div></td><td valign=\"top\" rowSpan=\"2\" class=\"button_cell\"><button value=\"submit\" onClick=\"%S\" class=\"%S\"></button></td></tr>\n" );

    const CFSMailAddress* sender( iMailMessage.GetSender() );

        {

        }

    const TPtrC function( aCollapsed ? KExpandFunction() : KCollapseFunction() );

    const TPtrC style( aCollapsed ? KStyleExpand() : KStyleCollapse() );

    const TPtrC align(  iExportFlags.IsSet( EMirroredLayout ) ? KAlignRight() : KAlignLeft() );

    HBufC* formatBuffer = HBufC::NewLC( KSenderFormat().Length() + displayName.Length() + align.Length() + function.Length() + style.Length() );

    formatBuffer->Des().Format( KSenderFormat(), &align, &displayName, &function, &style );

    HBufC8* utf = CnvUtfConverter::ConvertFromUnicodeToUtf8L( *formatBuffer );

    CleanupStack::PushL( utf );

    iWriteStream.WriteL( *utf );

    CleanupStack::PopAndDestroy( 2 ); // formatBuffer, utf    

    }

void CFreestyleMessageHeaderHTML::ExportSenderAddressTableRowL() const

    {

    _LIT( KSenderAddressFormat, "<tr><td colspan=\"2\" align=\"%S\"><div class=\"truncate\"><a class=\"sender_address\" href=\"cmail://from/%S\">%S</a></div></td></tr>\n" );

    const CFSMailAddress* sender( iMailMessage.GetSender() );

    const TPtrC align(  iExportFlags.IsSet( EMirroredLayout ) ? KAlignRight() : KAlignLeft() );

    HBufC* formatBuffer = HBufC::NewLC( KSenderAddressFormat().Length() + emailAddress.Length() * 2 + align.Length() );

    formatBuffer->Des().Format( KSenderAddressFormat(), &align, &emailAddress, &emailAddress );

    HBufC8* utf = CnvUtfConverter::ConvertFromUnicodeToUtf8L( *formatBuffer );

    CleanupStack::PushL( utf );

    iWriteStream.WriteL( *utf );

    CleanupStack::PopAndDestroy( 2 ); // formatBuffer, utf    

    }

void CFreestyleMessageHeaderHTML::ExportLabelTableRowL( const TInt aResourceId, const TInt aColSpan ) const

    {

    _LIT( KLabelFormat, "<tr><td align=\"%S\" colspan=\"%d\" class=\"label\">%S</td></tr>\n" );

    HBufC* labelText = StringLoader::LoadLC( aResourceId );

    const TPtrC align(  iExportFlags.IsSet( EMirroredLayout ) ? KAlignRight() : KAlignLeft() );

    HBufC* formatBuffer = HBufC::NewLC( KLabelFormat().Length() + labelText->Length() + align.Length() + 8 );

    formatBuffer->Des().Format( KLabelFormat(), &align, aColSpan, labelText );

    HBufC8* utf = CnvUtfConverter::ConvertFromUnicodeToUtf8L( *formatBuffer );

    CleanupStack::PushL( utf );

    iWriteStream.WriteL( *utf );

    CleanupStack::PopAndDestroy( 3 ); // labelText, formatBuffer, utf    

    }

void  CFreestyleMessageHeaderHTML::ExportFromTableRowL() const

    {

    ExportLabelTableRowL( R_FREESTYLE_EMAIL_UI_VIEWER_FROM );

    ExportSenderAddressTableRowL();

    }

void  CFreestyleMessageHeaderHTML::ExportExpandRecipientsL( const TDesC& aType, const TInt aCount ) const

    {

    _LIT( KExpandRecipientsFormat, "<tr><td align=\"%S\"><a class=\"recipient\" href=\"cmail://expand_%S/\" onclick=\"handleHeaderDisplay('%S_collapsed','%S_expanded')\">%S</a></td></tr>\n" );

    HBufC* text =  StringLoader::LoadLC( R_FREESTYLE_EMAIL_UI_VIEWER_N_MORE_RECIPIENTS, aCount );

    const TPtrC align(  iExportFlags.IsSet( EMirroredLayout ) ? KAlignRight() : KAlignLeft() );

    HBufC* formatBuffer = HBufC::NewLC( KExpandRecipientsFormat().Length() + text->Length() + align.Length() + aType.Length() * 3 );

    formatBuffer->Des().Format( KExpandRecipientsFormat(), &align, &aType, &aType, &aType, text );

    HBufC8* utf = CnvUtfConverter::ConvertFromUnicodeToUtf8L( *formatBuffer );

    CleanupStack::PushL( utf );

    iWriteStream.WriteL( *utf );

    CleanupStack::PopAndDestroy( 3 ); // text, formatBuffer, utf    

    }

void  CFreestyleMessageHeaderHTML::ExportExpandAttachmentsL( const TDesC& aType, const TInt aCount ) const

    {

    _LIT( KExpandRecipientsFormat, "<td align=\"%S\" class=\"attachment\"><a href=\"cmail://expand_%S/\" onclick=\"handleHeaderDisplay('%S_collapsed','%S_expanded')\">%S</a></td>" );

    HBufC* text =  StringLoader::LoadLC( R_FSE_VIEWER_ATTACHMENTS_TEXT, aCount );

    const TPtrC align(  iExportFlags.IsSet( EMirroredLayout ) ? KAlignRight() : KAlignLeft() );

    HBufC* formatBuffer = HBufC::NewLC( KExpandRecipientsFormat().Length() + text->Length() + align.Length() + aType.Length() * 3 );

    formatBuffer->Des().Format( KExpandRecipientsFormat(), &align, &aType, &aType, &aType, text );

    HBufC8* utf = CnvUtfConverter::ConvertFromUnicodeToUtf8L( *formatBuffer );

    CleanupStack::PushL( utf );

    iWriteStream.WriteL( *utf );

    CleanupStack::PopAndDestroy( 3 ); // text, formatBuffer, utf    

    }

void  CFreestyleMessageHeaderHTML::ExportRecipientsTableL( const TDesC& aType, const TInt aLabelResourceId, 

        const RPointerArray<CFSMailAddress>& aRecipients, const TBool aExpanded ) const

    {  

    if ( aRecipients.Count() > 0 )

        { 

        TBool innerTableExpanded( aExpanded );

        TBitFlags flags;

        flags.Assign( EHidden, iExportFlags.IsClear( EHeaderExpanded ) );

        _LIT( KTableNameFormat, "%S_table" );

        HBufC* outerTableName = HBufC::NewLC( KTableNameFormat().Length() + aType.Length() );

        outerTableName->Des().Format( KTableNameFormat(), &aType );

        ExportTableBeginL( *outerTableName, flags );

        CleanupStack::PopAndDestroy(); // outerTableName

        ExportLabelTableRowL( aLabelResourceId, 2 );

        const TBool showCollapsed( aRecipients.Count() > KMaxRecipientsShown );

        TBitFlags tableFlags;

        tableFlags.Set( EFixed );        

        if ( showCollapsed )

            {

            _LIT( KFormatCollapsed, "%S_collapsed" );

            HBufC* tableName = HBufC::NewLC( KFormatCollapsed().Length() + 8 );

            tableName->Des().Format( KFormatCollapsed(), &aType );

            ExportInnerTableBeginWithRowBeginL( *tableName, 2, !innerTableExpanded, tableFlags );

            CleanupStack::PopAndDestroy(); // tableName

            ExportExpandRecipientsL( aType, aRecipients.Count() );        

            ExportInnerTableEndWithRowEndL();

            tableFlags.Set( EHidden );

            }

        else

            {

            innerTableExpanded = ETrue;

            }

        _LIT( KFormatExpanded, "%S_expanded" );

        HBufC* tableName = HBufC::NewLC( KFormatExpanded().Length() + 8 );

        tableName->Des().Format( KFormatExpanded(), &aType );

        ExportInnerTableBeginWithRowBeginL( *tableName, 2, innerTableExpanded, tableFlags );

        CleanupStack::PopAndDestroy(); // tableName

        ExportRecipientsL( aType, aRecipients );

        ExportInnerTableEndWithRowEndL();        

        ExportTableEndL();

        }

    }

void  CFreestyleMessageHeaderHTML::ExportRecipientsL( const TDesC& aType, 

        const RPointerArray<CFSMailAddress>& aRecipients) const

    {

    _LIT( KRecipientFormat, "<tr><td align=\"%S\"><div class=\"truncate\"><a class=\"recipient\" href=\"cmail://%S/%S\">%S</a></div></td></tr>" );

    const TPtrC align(  iExportFlags.IsSet( EMirroredLayout ) ? KAlignRight() : KAlignLeft() );

    for ( TInt i = 0; i < aRecipients.Count(); i++ )

        {

        const CFSMailAddress* sender( aRecipients[ i ] );

        TPtrC displayName( sender->GetDisplayName() );

        const TPtrC emailAddress( sender->GetEmailAddress() );

        if ( !displayName.Length() )

            {

            displayName.Set( emailAddress );

            }   

        HBufC* formatBuffer = HBufC::NewLC( KRecipientFormat().Length() + align.Length() + aType.Length() + emailAddress.Length() + displayName.Length() );

        formatBuffer->Des().Format( KRecipientFormat(), &align, &aType, &emailAddress, &displayName );

        HBufC8* utf = CnvUtfConverter::ConvertFromUnicodeToUtf8L( *formatBuffer );

        CleanupStack::PushL( utf );

        iWriteStream.WriteL( *utf );

        CleanupStack::PopAndDestroy( 2 ); // formatBuffer, utf    

        }

    }

void  CFreestyleMessageHeaderHTML::ExportToTableL() const

    {

    ExportRecipientsTableL( _L("to"), R_FREESTYLE_EMAIL_UI_VIEWER_TO, iMailMessage.GetToRecipients(), iExportFlags.IsSet( EToExpanded ) );

    }

void  CFreestyleMessageHeaderHTML::ExportCcTableL() const

    {

    ExportRecipientsTableL( _L("cc"), R_FREESTYLE_EMAIL_UI_VIEWER_CC, iMailMessage.GetCCRecipients(), iExportFlags.IsSet( ECcExpanded ) );

    }

void  CFreestyleMessageHeaderHTML::ExportBccTableL() const

    {

    ExportRecipientsTableL( _L("bcc"), R_FREESTYLE_EMAIL_UI_VIEWER_BCC, iMailMessage.GetBCCRecipients(), iExportFlags.IsSet( EBccExpanded ) );

    }

void CFreestyleMessageHeaderHTML::ExportDateTimeTableRowL( const TInt aColSpan ) const

    {

    _LIT( KDateTimeFormat, "<tr><td colspan=\"%d\" align=\"%S\" class=\"datetime\">%S%S%S</td></tr>\n" );

    HBufC* dateText = TFsEmailUiUtility::DateTextFromMsgLC( &iMailMessage );

    HBufC* timeText = TFsEmailUiUtility::TimeTextFromMsgLC( &iMailMessage );

    const TPtrC align(  iExportFlags.IsSet( EMirroredLayout ) ? KAlignRight() : KAlignLeft() );

    HBufC* formatBuffer = HBufC::NewLC( KDateTimeFormat().Length() + dateText->Length() + timeText->Length() +  KSentLineDateAndTimeSeparatorText().Length() + align.Length() + 3 );

    formatBuffer->Des().Format( KDateTimeFormat(), aColSpan, &align, dateText, &KSentLineDateAndTimeSeparatorText(), timeText );

    HBufC8* utf = CnvUtfConverter::ConvertFromUnicodeToUtf8L( *formatBuffer );

    CleanupStack::PushL( utf );

    iWriteStream.WriteL( *utf );

    CleanupStack::PopAndDestroy( 4 ); // dateText, timeText, formatBuffer, utf   

    }

void CFreestyleMessageHeaderHTML::ExportSubjectTableRowL( const TBool aShowLabel ) const

    {

    _LIT( KClassSubject, "subject" );

    TPtrC subjectClass( KClassSubject() );

    if ( aShowLabel )

        {

        _LIT( KClassSubjectIntended, "subject_intended");

        ExportLabelTableRowL( R_FREESTYLE_EMAIL_UI_VIEWER_SUBJECT, 2 );

        subjectClass.Set( KClassSubjectIntended() );

        }

    _LIT( KSubjectFormat, "<tr><td align=\"%S\" class=\"%S\">%S</td><td align=\"center\" valign=\"bottom\" width=\"1\">");

    const TPtrC align(  iExportFlags.IsSet( EMirroredLayout ) ? KAlignRight() : KAlignLeft() );

    HBufC* subject = SubjectLC();

    HBufC* formatBuffer = HBufC::NewLC( KSubjectFormat().Length() + align.Length() + subject->Length() + subjectClass.Length() );

    formatBuffer->Des().Format( KSubjectFormat(), &align, &subjectClass, subject );

    HBufC8* utf = CnvUtfConverter::ConvertFromUnicodeToUtf8L( *formatBuffer );

    CleanupStack::PushL( utf );

    iWriteStream.WriteL( *utf );

    CleanupStack::PopAndDestroy( 3 ); // subject, formatBuffer, utf

    ExportMessageIconsL();

    iWriteStream.WriteL( KTableCellEnd() );

    iWriteStream.WriteL( KTableRowEnd() );

    }

void CFreestyleMessageHeaderHTML::ExportMessageIconsL() const

    {

    _LIT( KPriorityLow, "priority_low" );

    _LIT( KPriorityHigh, "priority_high" );

    _LIT( KFollowUp, "follow_up" );

    _LIT( KFollowUpComplete, "follow_up_complete" );

    TBool iconShown( EFalse );

    if ( iMailMessage.IsFlagSet( EFSMsgFlag_Low ) )

        {

        ExportIconL( KPriorityLow() );

        iconShown = ETrue;

        }

    else if ( iMailMessage.IsFlagSet( EFSMsgFlag_Important ) )

        {

        ExportIconL( KPriorityHigh() );    

        iconShown = ETrue;

        }

    if ( iMailMessage.IsFlagSet( EFSMsgFlag_FollowUp ) )

        {

        ExportIconL( KFollowUp() );

        iconShown = ETrue;