/*

* Copyright (c) 2007-2008 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 <FreestyleEmailUi.rsg>

#include "FreestyleMessageHeaderHTML.h"

#include "FreestyleEmailUiUtilities.h"

#include "ncsconstants.h"

_LIT8( KShowDetailIconFileName, "plus.gif");

_LIT8( KAttachementIconGeneral, "attachment.gif");

_LIT8( KHeaderTableName, "header_table");

_LIT8( KToTableName, "to_table");

_LIT8( KCcTableName, "cc_table");

_LIT8( KBccTableName, "bcc_table");

_LIT8( KAttachmentTableName, "attachment_table");

_LIT8( KFromTableName,"from_table");

_LIT8( KFromFieldName, "from_field");

_LIT8( KToFieldName, "to_field");

_LIT8( KCcFieldName, "cc_field");

_LIT8( KBccFieldName, "bcc_field");

_LIT8( KSentFieldName, "sent_field");

_LIT8( KSubjectFieldName, "subject_field");

_LIT8( KAttachmentFieldName, "attachment_field");

_LIT8( KToImageName, "to_img");

_LIT8( KCcImageName, "cc_img");

_LIT8( KBccImageName, "bcc_img");

_LIT8( KAttachmentImageName, "attachment_img");

_LIT8( KDetailImageName, "detail_img");

_LIT8( KAttachmentSizeUnit, "kb");

_LIT8( KSpace8, " ");

_LIT8( KMetaHeader, "<meta http-equiv=\"Content-Type\" content=\"text/html; charset=UTF-8\">\n" );

const TInt KMaxEventLength = 256;

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

    {

    CFreestyleMessageHeaderHTML* self = new (ELeave) CFreestyleMessageHeaderHTML( aMailMessage );

    self->ConstructL();

    return self;

    }

EXPORT_C void CFreestyleMessageHeaderHTML::ExportL( CFSMailMessage& aMailMessage, RWriteStream& aWriteStream )

    {

    CFreestyleMessageHeaderHTML* headerHtml = CFreestyleMessageHeaderHTML::NewL( aMailMessage );

    CleanupStack::PushL( headerHtml );

    headerHtml->ExportL( aWriteStream );

    CleanupStack::PopAndDestroy( headerHtml );

    }

EXPORT_C void CFreestyleMessageHeaderHTML::ExportL( CFSMailMessage& aMailMessage, RFile& aFile )

    {

    CFreestyleMessageHeaderHTML* headerHtml = CFreestyleMessageHeaderHTML::NewL( aMailMessage );

    CleanupStack::PushL( headerHtml );

    headerHtml->ExportL( aFile );

    CleanupStack::PopAndDestroy( headerHtml );

    }

EXPORT_C void CFreestyleMessageHeaderHTML::ExportL( CFSMailMessage& aMailMessage, RFs& aFs, const TPath& aFilePath)

    {

    CFreestyleMessageHeaderHTML* headerHtml = CFreestyleMessageHeaderHTML::NewL( aMailMessage );

    CleanupStack::PushL( headerHtml );

    headerHtml->ExportL( aFs, aFilePath );

    CleanupStack::PopAndDestroy( headerHtml );

    }

CFreestyleMessageHeaderHTML::~CFreestyleMessageHeaderHTML()

    {

    iAttachments.ResetAndDestroy();

    }

EXPORT_C void CFreestyleMessageHeaderHTML::ExportL( RWriteStream& aWriteStream ) const

    {

    HTMLStartL( aWriteStream );

    ExportHTMLHeaderL( aWriteStream );

    ExportHTMLBodyL( aWriteStream );

    HTMLEndL( aWriteStream );

    }

EXPORT_C void CFreestyleMessageHeaderHTML::ExportL( RFile& aFile ) const

    {

    RFileWriteStream fwstream;

    fwstream.Attach( aFile, 0 );

    CleanupClosePushL( fwstream );

    ExportL( fwstream );

    CleanupStack::PopAndDestroy( &fwstream );

    }

EXPORT_C void CFreestyleMessageHeaderHTML::ExportL( RFs& aFs, const TPath& aFilePath) const

    {

    RFileWriteStream fwstream;

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

    CleanupClosePushL( fwstream );

    ExportL( fwstream );

    CleanupStack::PopAndDestroy( &fwstream );

    }

CFreestyleMessageHeaderHTML::CFreestyleMessageHeaderHTML( CFSMailMessage& aMailMessage )

    : iMailMessage( aMailMessage )

    {

    }

void CFreestyleMessageHeaderHTML::ConstructL()

    {

    iMailMessage.AttachmentListL( iAttachments );

    }

void CFreestyleMessageHeaderHTML::HTMLStartL( RWriteStream& aWriteStream ) const

    {

    aWriteStream.WriteL(_L8("<html xmlns=\"http://www.w3.org/1999/xhtml\" xml:lang=\"en\">\n"));

    aWriteStream.CommitL();

    }

void CFreestyleMessageHeaderHTML::HTMLEndL( RWriteStream& aWriteStream ) const

    {

    aWriteStream.WriteL(_L8("</html>\n"));

    aWriteStream.CommitL();

    }

void CFreestyleMessageHeaderHTML::ExportHTMLHeaderL( RWriteStream& aWriteStream ) const

    {

    HTMLHeaderStartL( aWriteStream );

    HTMLMetaL( aWriteStream );

    aWriteStream.WriteL(_L8("<title>Email Header</title>\n"));

    AddJavascriptL( aWriteStream );

    AddStyleSheetL( aWriteStream );

    HTMLHeaderEndL( aWriteStream );

    }

void CFreestyleMessageHeaderHTML::HTMLHeaderStartL( RWriteStream& aWriteStream ) const

    {

    aWriteStream.WriteL(_L8("<head>"));

    aWriteStream.CommitL();

    }

void CFreestyleMessageHeaderHTML::HTMLMetaL( RWriteStream& aWriteStream ) const

    {

    // Html file representing email header fields, is always constructed locally

    // in the phone, and it is always of charset UTF-8 irrespective of what

    // the email html-format body is

    aWriteStream.WriteL( KMetaHeader );

    aWriteStream.CommitL();

    }

void CFreestyleMessageHeaderHTML::HTMLHeaderEndL( RWriteStream& aWriteStream ) const

    {

    aWriteStream.WriteL(_L8("</head>\n"));

    aWriteStream.CommitL();

    }

void CFreestyleMessageHeaderHTML::ExportHTMLBodyL( RWriteStream& aWriteStream ) const

    {

    HTMLBodyStartL( aWriteStream );

    ExportInitialTableL( aWriteStream );

    StartHeaderTableL( aWriteStream, KHeaderTableName );

    ExportFromL( aWriteStream );

    ExportToL( aWriteStream );

    ExportCcL( aWriteStream );

    ExportBccL( aWriteStream );

    ExportAttachmentsL( aWriteStream );

    ExportSentTimeL( aWriteStream );

    ExportSubjectL( aWriteStream );

    EndHeaderTableL( aWriteStream );

    HTMLBodyEndL( aWriteStream );

    }

void CFreestyleMessageHeaderHTML::HTMLBodyStartL( RWriteStream& aWriteStream ) const

    {

    aWriteStream.WriteL(_L8("<body>\n"));

    aWriteStream.CommitL();

    }

void CFreestyleMessageHeaderHTML::ExportInitialTableL( RWriteStream& aWriteStream ) const

    {

    aWriteStream.WriteL(_L8("<table id=\"table_initial\" border=\"0\" width=\"50%\">\n"));

    aWriteStream.WriteL(_L8("<tr>\n"));

    // Add "show details" image

    aWriteStream.WriteL(_L8("<td width=\"1\" valign=middle><image id=\"detail_img\" border=\"0\" src=\"plus.gif\" onClick=\"expandHeader()\" ></td>\n"));

		//Sent time

    aWriteStream.WriteL(_L8("<td id=\"sent_initial\" valign=bottom>"));

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

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

    TInt len = dateText->Length() + KSentLineDateAndTimeSeparatorText().Length() + timeText->Length();

    HBufC* sentTimeText = HBufC::NewLC( len );

    TPtr sentTimeTextPtr = sentTimeText->Des();

    sentTimeTextPtr.Append( *dateText );

    sentTimeTextPtr.Append( KSentLineDateAndTimeSeparatorText );

    sentTimeTextPtr.Append( *timeText );

    HBufC8* sentTimeText8 = CnvUtfConverter::ConvertFromUnicodeToUtf8L( sentTimeTextPtr );

    CleanupStack::PushL( sentTimeText8 );

    aWriteStream.WriteL( *sentTimeText8 );

    CleanupStack::PopAndDestroy( sentTimeText8 );

    CleanupStack::PopAndDestroy( sentTimeText );

    CleanupStack::PopAndDestroy( timeText );

    CleanupStack::PopAndDestroy( dateText );

    aWriteStream.WriteL(_L8("</td>\n</tr>\n"));

    aWriteStream.WriteL(_L8("<tr id=\"subject_initial\">\n"));

    if ( iAttachments.Count() > 0 )

        {

        aWriteStream.WriteL(_L8("<td width=\"1\" align=left><image src=\""));

        aWriteStream.WriteL(KAttachementIconGeneral);

        aWriteStream.WriteL(_L8("\" ></td>\n"));

        }

    else

        {

        aWriteStream.WriteL(_L8("<td></td>\n"));

        }

    aWriteStream.WriteL(_L8("<td valign=middle><b>"));

    //Subject

    HBufC8* subject8 = CnvUtfConverter::ConvertFromUnicodeToUtf8L( iMailMessage.GetSubject() );

    CleanupStack::PushL( subject8 );

    aWriteStream.WriteL( *subject8 );

    CleanupStack::PopAndDestroy( subject8 );

    aWriteStream.WriteL(_L8("</b></td>\n</tr>\n</table>\n"));

    aWriteStream.CommitL();

    }

void CFreestyleMessageHeaderHTML::HTMLBodyEndL( RWriteStream& aWriteStream ) const

    {

    aWriteStream.WriteL(_L8("</body>\n"));

    aWriteStream.CommitL();

    }

void CFreestyleMessageHeaderHTML::ExportSubjectL( RWriteStream& aWriteStream ) const

    {

    aWriteStream.WriteL( _L8("<tr id=\"") );

    aWriteStream.WriteL( KSubjectFieldName );

    aWriteStream.WriteL( _L8("\">\n") );

    aWriteStream.WriteL( _L8("<td width=\"1\">") );

    aWriteStream.WriteL( _L8("<b>") );

    HBufC8* subjectHeadingText = HeadingTextLC( R_FREESTYLE_EMAIL_UI_VIEWER_SUBJECT );

    aWriteStream.WriteL( *subjectHeadingText );

    CleanupStack::PopAndDestroy( subjectHeadingText );

    aWriteStream.WriteL( _L8("</b>") );

    aWriteStream.WriteL( _L8("</td>\n") );

    aWriteStream.WriteL( _L8("</tr>\n") );

    aWriteStream.WriteL( _L8("<tr>\n") );

    aWriteStream.WriteL( _L8("<td>") );

    HBufC8* subject8 = CnvUtfConverter::ConvertFromUnicodeToUtf8L( iMailMessage.GetSubject() );

    CleanupStack::PushL( subject8 );

    aWriteStream.WriteL( *subject8 );

    CleanupStack::PopAndDestroy( subject8 );

    aWriteStream.WriteL( _L8("</td>\n") );

    aWriteStream.WriteL( _L8("</tr>\n") );

    aWriteStream.CommitL();

    }

void CFreestyleMessageHeaderHTML::ExportFromL( RWriteStream& aWriteStream ) const

    {

    RPointerArray<CFSMailAddress> froms;

    CleanupClosePushL( froms );

    CFSMailAddress* from = iMailMessage.GetSender();  // ownership not transferred

    if ( from )

        {

        froms.AppendL( from );

        }

    ExportEmailAddressesL(aWriteStream, FreestyleMessageHeaderURLFactory::EEmailAddressTypeFrom, froms );

    CleanupStack::PopAndDestroy( &froms );

    }

void CFreestyleMessageHeaderHTML::ExportToL( RWriteStream& aWriteStream ) const

    {

    RPointerArray<CFSMailAddress>& recipients = iMailMessage.GetToRecipients();

    ExportEmailAddressesL( aWriteStream, FreestyleMessageHeaderURLFactory::EEmailAddressTypeTo, recipients );

    }

void CFreestyleMessageHeaderHTML::ExportCcL( RWriteStream& aWriteStream ) const

    {

    RPointerArray<CFSMailAddress>& recipients = iMailMessage.GetCCRecipients();

    ExportEmailAddressesL( aWriteStream, FreestyleMessageHeaderURLFactory::EEmailAddressTypeCc, recipients );

    }

void CFreestyleMessageHeaderHTML::ExportBccL( RWriteStream& aWriteStream ) const

    {

    RPointerArray<CFSMailAddress>& recipients = iMailMessage.GetBCCRecipients();

    ExportEmailAddressesL( aWriteStream, FreestyleMessageHeaderURLFactory::EEmailAddressTypeBcc, recipients );

    }

void CFreestyleMessageHeaderHTML::ExportSentTimeL( RWriteStream& aWriteStream ) const

    {

    aWriteStream.WriteL( _L8("<tr id=\"") );

    aWriteStream.WriteL( KSentFieldName );

    aWriteStream.WriteL( _L8("\">\n") );

    aWriteStream.WriteL( _L8("<td width=\"1\">") );

    aWriteStream.WriteL( _L8("<b>") );

    HBufC8* sentHeadingText = HeadingTextLC( R_FREESTYLE_EMAIL_UI_VIEWER_SENT );

    aWriteStream.WriteL( *sentHeadingText );

    CleanupStack::PopAndDestroy( sentHeadingText );

    aWriteStream.WriteL( _L8("</b>") );

    aWriteStream.WriteL( _L8("</td>\n") );

    aWriteStream.WriteL( _L8("</tr>\n") );

    aWriteStream.WriteL( _L8("<tr>\n") );

    aWriteStream.WriteL( _L8("<td>") );

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

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

    TInt len = dateText->Length() + KSentLineDateAndTimeSeparatorText().Length() + timeText->Length();

    HBufC* sentTimeText = HBufC::NewLC( len );

    TPtr sentTimeTextPtr = sentTimeText->Des();

    sentTimeTextPtr.Append( *dateText );

    sentTimeTextPtr.Append( KSentLineDateAndTimeSeparatorText );

    sentTimeTextPtr.Append( *timeText );

    HBufC8* sentTimeText8 = CnvUtfConverter::ConvertFromUnicodeToUtf8L( sentTimeTextPtr );

    CleanupStack::PushL( sentTimeText8 );

    aWriteStream.WriteL( *sentTimeText8 );

    CleanupStack::PopAndDestroy( sentTimeText8 );

    CleanupStack::PopAndDestroy( sentTimeText );

    CleanupStack::PopAndDestroy( timeText );

    CleanupStack::PopAndDestroy( dateText );

    aWriteStream.WriteL( _L8("</td>\n") );

    aWriteStream.WriteL( _L8("</tr>\n") );

    aWriteStream.CommitL();

    }

void CFreestyleMessageHeaderHTML::ExportAttachmentsL( RWriteStream& aWriteStream ) const

    {

    if ( iAttachments.Count() > 0 )

        {

        aWriteStream.WriteL( _L8("<tr id=\"") );

        aWriteStream.WriteL( KAttachmentFieldName );

        aWriteStream.WriteL( _L8("\">\n") );

        aWriteStream.WriteL( _L8("<td width=\"1\">") );

        aWriteStream.WriteL( _L8("<b>") );

        HBufC8* attachmentHeadingText = HeadingTextLC( R_FREESTYLE_EMAIL_UI_VIEWER_ATTACHMENT,  iAttachments.Count());

        aWriteStream.WriteL( *attachmentHeadingText );

        CleanupStack::PopAndDestroy( attachmentHeadingText );

        aWriteStream.WriteL( _L8(":</b>") );

        aWriteStream.WriteL( _L8("</td>\n") );

        aWriteStream.WriteL( _L8("</tr>\n") );

        aWriteStream.WriteL( _L8("<td>\n") );

        StartTableL( aWriteStream, KAttachmentTableName );

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

            {

            AddAttachmentL( aWriteStream, *iAttachments[i] );

            }

        EndTableL( aWriteStream );

        aWriteStream.WriteL( _L8("</td>\n") );

        aWriteStream.WriteL( _L8("</tr>\n") );

        }

    }

void CFreestyleMessageHeaderHTML::ExportEmailAddressesL( RWriteStream& aWriteStream,

        FreestyleMessageHeaderURLFactory::TEmailAddressType aEmailAddressType,

        const RPointerArray<CFSMailAddress>& aEmailAddresses ) const

    {

    if (aEmailAddresses.Count() == 0)

        {

        return;

        }

    aWriteStream.WriteL( _L8("<tr id=\"") );

    switch ( aEmailAddressType )

        {

        case FreestyleMessageHeaderURLFactory::EEmailAddressTypeFrom:

            aWriteStream.WriteL( KFromFieldName );

            break;

        case FreestyleMessageHeaderURLFactory::EEmailAddressTypeTo:

            aWriteStream.WriteL( KToFieldName );

            break;

        case FreestyleMessageHeaderURLFactory::EEmailAddressTypeCc:

            aWriteStream.WriteL( KCcFieldName );

            break;

        case FreestyleMessageHeaderURLFactory::EEmailAddressTypeBcc:

            aWriteStream.WriteL( KBccFieldName );

            break;

        default:

            User::Leave( KErrNotSupported );

        }

    aWriteStream.WriteL( _L8("\">\n") );

    aWriteStream.WriteL( _L8("<td width=\"1\">") );

    aWriteStream.WriteL( _L8("<b>") );

    switch ( aEmailAddressType )

        {

        case FreestyleMessageHeaderURLFactory::EEmailAddressTypeFrom:

            {

            HBufC8* fromHeadingText = HeadingTextLC( R_FREESTYLE_EMAIL_UI_VIEWER_FROM );

            aWriteStream.WriteL( *fromHeadingText );

            CleanupStack::PopAndDestroy( fromHeadingText );

            }

            break;

        case FreestyleMessageHeaderURLFactory::EEmailAddressTypeTo:

            {

            HBufC8* toHeadingText = HeadingTextLC( R_FREESTYLE_EMAIL_UI_VIEWER_TO );

            aWriteStream.WriteL( *toHeadingText );

            CleanupStack::PopAndDestroy( toHeadingText );

            }

            break;

        case FreestyleMessageHeaderURLFactory::EEmailAddressTypeCc:

            {

            HBufC8* ccHeadingText = HeadingTextLC( R_FREESTYLE_EMAIL_UI_VIEWER_CC );

            aWriteStream.WriteL( *ccHeadingText );

            CleanupStack::PopAndDestroy( ccHeadingText );

            }

            break;

        case FreestyleMessageHeaderURLFactory::EEmailAddressTypeBcc:

            {

            HBufC8* bccHeadingText = HeadingTextLC( R_FREESTYLE_EMAIL_UI_VIEWER_BCC );

            aWriteStream.WriteL( *bccHeadingText );

            CleanupStack::PopAndDestroy( bccHeadingText );

            }

            break;

        default:

            User::Leave( KErrNotSupported );

        }

    aWriteStream.WriteL( _L8("</b>") );

    aWriteStream.WriteL( _L8("</td>\n") );

    aWriteStream.WriteL( _L8("</tr>\n") );

    aWriteStream.WriteL( _L8("<tr>\n") );

    aWriteStream.WriteL( _L8("<td>") );

    switch ( aEmailAddressType )

        {

        case FreestyleMessageHeaderURLFactory::EEmailAddressTypeTo:

            StartTableL( aWriteStream, KToTableName );

            break;

        case FreestyleMessageHeaderURLFactory::EEmailAddressTypeCc:

            StartTableL( aWriteStream, KCcTableName );

            break;

        case FreestyleMessageHeaderURLFactory::EEmailAddressTypeBcc:

            StartTableL( aWriteStream, KBccTableName );

            break;

        case FreestyleMessageHeaderURLFactory::EEmailAddressTypeFrom:

            StartTableL( aWriteStream, KFromTableName );

            break;

        default:

            User::Leave( KErrNotSupported );

        }

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

        {

        aWriteStream.WriteL( _L8("<tr><td>") );

        AddEmailAddressL (aWriteStream, aEmailAddressType, *aEmailAddresses[i] );

        aWriteStream.WriteL( _L8("</td></tr>\n") );

        }

    EndTableL( aWriteStream );    

    aWriteStream.WriteL( _L8("</td>\n") );

    aWriteStream.WriteL( _L8("</tr>\n") );

    aWriteStream.CommitL();

    }

void CFreestyleMessageHeaderHTML::AddEmailAddressL( RWriteStream& aWriteStream,

        FreestyleMessageHeaderURLFactory::TEmailAddressType aEmailAddressType,

        const CFSMailAddress& aEmailAddress ) const

    {

    CFreestyleMessageHeaderURL* emailUrl = FreestyleMessageHeaderURLFactory::CreateEmailAddressUrlL( aEmailAddressType, aEmailAddress );

    CleanupStack::PushL( emailUrl );

    HBufC* url = emailUrl->ExternalizeL();

    CleanupStack::PushL( url );

    HBufC8* url8 = CnvUtfConverter::ConvertFromUnicodeToUtf8L( *url );

    CleanupStack::PushL( url8 );

    StartHyperlinkL( aWriteStream, *url8 );

    CleanupStack::PopAndDestroy( url8 );

    CleanupStack::PopAndDestroy( url );

    HBufC8* displayName8 = NULL;

    if ( aEmailAddress.GetDisplayName().Length() > 0 )

        {

        displayName8 = CnvUtfConverter::ConvertFromUnicodeToUtf8L( aEmailAddress.GetDisplayName() );