/*

* Copyright (c) 2002-2007 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:   Bio control for vCalendar messages

*

*/

// INCLUDE FILES

#include "VCalendarBioControl.h"    // CVCalendarBioControl

#include "VCalBcDataFiller.h"       // CVCalBcDataFiller

#include "VCalLog.h"				// Logging functionality

#include "VCalBcPanics.h"

#include <eikon.hrh>

#include <eikmenup.h>

#include <msvapi.h>

#include <s32file.h>                // RFileReadStream

#include <StringLoader.h>           // StringLoader

#include <msgbiocontrolObserver.h>  // MMsgBioControlObserver

#include <vcalbc.rsg>               // resouce identifiers

#include <CRichBio.h>               // CRichBio

#include <CalenImporter.h>          // CCalenImporter

#include <calentryview.h>           // CCalEntryView

#include <MsgBioUtils.h>

#include <bldvariant.hrh>			// __SERIES60_HELP

#include <csxhelp/smart.hlp.hrh>

#include <featmgr.h>

#include <calsession.h>

#include <mmsvattachmentmanager.h>

#include <sysutil.h>

#include <ecom/ecom.h>

#include <AknDef.h>

#include <AiwServiceHandler.h>          // CAiwServiceHandler

#include <smsviewer.rsg>

#include <bva.rsg>

#include <AiwCommon.hrh>

#include <data_caging_path_literals.hrh>

// LOCAL CONSTANTS AND MACROS

const TInt KVCalBcLeaveCodeCorrupt = KErrMsgBioMessageNotValid;

const TInt KIndexFirst = 0;

const TInt KLengthBeginVCalendar = 15; // "BEGIN:VCALENDAR" -string length

const TInt KVCalBcHeightReductionBva = 9;

//recognition string for ical

_LIT8(KVersionICal,		"VERSION:2.0");

//recognition string for vcal

_LIT8(KVersionVCal,		"VERSION:1.0");

const TInt KReadDataAmount = 256;

_LIT(KVCalBCResourceFile, "vcalbc.rsc");

_LIT(KAvkonResourceFile, "avkon.rsc");

_LIT(KSmsViewerResourceFile, "smsviewer.rsc");

_LIT(KBvaResourceFile, "bva.rsc");

// MEMBER FUNCTIONS

CVCalendarBioControl::~CVCalendarBioControl()

    {

    FeatureManager::UnInitializeLib();

    iFileHandle.Close();

    delete iViewer;

    iCalEntryArray.ResetAndDestroy();

    delete iCalEntryView;

    delete iSession;

    if( iCalAiwServiceHandler )

        {

        delete iCalAiwServiceHandler;

        iCalAiwServiceHandler = NULL;

        }

    }

EXPORT_C CMsgBioControl* CVCalendarBioControl::NewL(

    MMsgBioControlObserver& aObserver,

    CMsvSession* aSession,

    TMsvId aId,

    TMsgBioMode aEditorOrViewerMode,

    const RFile* aFile)

    {

	LOG("CVCalendarBioControl::NewL begin");

    CVCalendarBioControl* self = new(ELeave) CVCalendarBioControl(

        aObserver,

        aSession,

        aId,

        aEditorOrViewerMode,

        aFile);

    CleanupStack::PushL(self);

    self->ConstructL();

    CleanupStack::Pop(); //self

    return self;

    }

void CVCalendarBioControl::SetAndGetSizeL(TSize& aSize)

    {

    if(iIsFileBased)

    	{

    	SetPosition(TPoint(0,KVCalBcHeightReductionBva));

    	aSize.iHeight -= KVCalBcHeightReductionBva;

    	iViewer->SetAndGetSizeL(aSize);

    	SetSizeWithoutNotification(aSize);

    	}

    else

    	{

    	iViewer->SetAndGetSizeL(aSize);

    	//the following compares the window size against the

        //"virtual" height of the viewer. This way there is no

        //scrolling if virtualHeight is less than window size

        if(iViewer->VirtualHeight() <= Window().Size().iHeight)

            {

            aSize.iHeight = iViewer->VirtualHeight();

            SetSizeWithoutNotification(aSize);

            }

        else

            {

            SetSizeWithoutNotification(aSize);

            }

    	}

    }

void CVCalendarBioControl::SetMenuCommandSetL(CEikMenuPane& aMenuPane)

    {

    if (!IsEditor())

        {

        aMenuPane.SetItemDimmed( KAiwCmdSaveToCalendar, EFalse );

        if( !iCalAiwServiceHandler )

            {

            iCalAiwServiceHandler = CAiwServiceHandler :: NewL();

            }

        // Adding to Calendar is only supported for received calendar messages

        // At this stage, aFile which is given to constructor is corrupted.

        // Base class method IsFileBased() cannot be used because file handle

        // in invalid. Guilty: \s60\avkon\src\AknOpenFileService.cpp

        // void CAknOpenFileServiceSession::OpenHandleWithParamsL(const RMessage2& aMessage).

        // File handle which is given to vCal BIO control is ***local variable***

        // in that method. When vCal is successfully viewed, OpenHandleWithParamsL

        // completes and causes file handle to be invalid. 30.6.2005 / Sauli Painilainen

        if( iIsFileBased )

            {

            // Attaching the interest to the menu.

            // This internally load the aiwprovider plug-in.

            iCalAiwServiceHandler->AttachMenuL( R_BVA_MENU, R_BVA_AIW_CALENDAR_INTEREST );

            // This menu should contain AIW menu placeholder,a sanity check.

            __ASSERT_DEBUG( iCalAiwServiceHandler->IsAiwMenu( R_BVA_MENU ), Panic( EPanic2 ) );

            if (iCalAiwServiceHandler->IsAiwMenu( R_BVA_MENU ) )

                {

                iCalAiwServiceHandler->InitializeMenuPaneL( aMenuPane, R_BVA_MENU,

                        KAiwCmdSaveToCalendar, 

                        iCalAiwServiceHandler->InParamListL() );

                }

            }

        else

            {

            // Attaching the interest to the menu.

            // This internally load the aiwprovider plug-in.

            iCalAiwServiceHandler->AttachMenuL( R_SMSV_OPTIONSMENUPANE, R_SMSV_AIW_CALENDAR_INTEREST );

            // This menu should contain AIW menu placeholder,a sanity check.

            __ASSERT_DEBUG( iCalAiwServiceHandler->IsAiwMenu( R_SMSV_OPTIONSMENUPANE ), Panic( EPanic2 ) );

            if (iCalAiwServiceHandler->IsAiwMenu( R_SMSV_OPTIONSMENUPANE ) )

                {

                iCalAiwServiceHandler->InitializeMenuPaneL( aMenuPane, R_SMSV_OPTIONSMENUPANE,

                        KAiwCmdSaveToCalendar, 

                        iCalAiwServiceHandler->InParamListL() );

                }

            }

        }

    }

TBool CVCalendarBioControl::HandleBioCommandL(TInt aCommand)

    {

    if( aCommand == KAiwCmdSaveToCalendar )

        {

        // Sending the filehandle to provider as input parameter.

        CAiwGenericParamList& inCalParamList = iCalAiwServiceHandler->InParamListL();

        RFile fileHandle;

        ResolveFileL( fileHandle );

        TAiwGenericParam calenParam( EGenericParamFile );

        calenParam.Value().Set( fileHandle );

        inCalParamList.AppendL( calenParam );

        iCalAiwServiceHandler->ExecuteMenuCmdL( aCommand, 

                inCalParamList,

                iCalAiwServiceHandler->OutParamListL(),

                0, NULL);

        return ETrue;

        }

    return EFalse;

    }

TRect CVCalendarBioControl::CurrentLineRect() const

    {

    return iViewer->CurrentLineRect();

    }

TBool CVCalendarBioControl::IsFocusChangePossible(

    TMsgFocusDirection aDirection) const

    {

    if (aDirection == EMsgFocusUp)

        {

        return iViewer->IsCursorLocation(EMsgTop);

        }

    return EFalse;

    }

HBufC* CVCalendarBioControl::HeaderTextL() const

    {

    return StringLoader::LoadL(R_QTN_SM_TITLE_INVITATION, iCoeEnv);

    }

TInt CVCalendarBioControl::VirtualHeight()

    {

    return iViewer->VirtualHeight();

    }

TInt CVCalendarBioControl::VirtualVisibleTop()

    {

    return iViewer->VirtualVisibleTop();

    }

TBool CVCalendarBioControl::IsCursorLocation(TMsgCursorLocation aLocation) const

    {

    return iViewer->IsCursorLocation(aLocation);

    }

void CVCalendarBioControl::GetHelpContext(

    TCoeHelpContext& aHelpContext) const

    {

	if ( FeatureManager::FeatureSupported( KFeatureIdHelp ) )

		{

		const TUid KUidSmart = {0x101F4CDA};

		if ( ! iIsFileBased )

			{

			aHelpContext.iContext=IsEditor()?

                KSMART_HLP_CALENDAREDITOR():KSMART_HLP_CALENDARVIEWER() ;

			aHelpContext.iMajor=KUidSmart;

			}

		else

			{

			if ( !IsEditor() )

			    {

				aHelpContext.iContext=KSMART_HLP_CALPULLMESVIEWER;

			    aHelpContext.iMajor=KUidSmart;

                }

            }

        }

    }

TInt CVCalendarBioControl::CountComponentControls() const

    {

    return 1; // the viewer component

    }

CCoeControl* CVCalendarBioControl::ComponentControl(TInt aIndex) const

    {

    if (aIndex == 0)

        {

        return iViewer;

        }

    return NULL;

    }

void CVCalendarBioControl::SizeChanged()

    {

    iViewer->SetExtent(Position(), iViewer->Size());

    }

void CVCalendarBioControl::FocusChanged(TDrawNow /*aDrawNow*/)

    {

    iViewer->SetFocus(IsFocused());

    }

void CVCalendarBioControl::SetContainerWindowL(const CCoeControl& aContainer)

    {

    CCoeControl::SetContainerWindowL(aContainer);

    // The reason for creating the viewer control here is that the

    // construction of the viewer requires a parent with a window. So it

    // cannot be done in ConstructL().

    //

    iViewer->ConstructL(this);

    }

TKeyResponse CVCalendarBioControl::OfferKeyEventL(

    const TKeyEvent& aKeyEvent,

    TEventCode aType)

    {

    return iViewer->OfferKeyEventL(aKeyEvent, aType);

    }

void CVCalendarBioControl::HandleResourceChange( TInt aType )

    {

    LOG("CVCalendarBioControl::HandleResourceChange begin");

    CMsgBioControl::HandleResourceChange( aType );

    if ( aType == KEikDynamicLayoutVariantSwitch )

        {

        iViewer->Reset();

        }

    LOG("CVCalendarBioControl::HandleResourceChange end");

    }

#if defined (__I_CAL_SUPPORT) && defined (RD_MESSAGING_ICAL_IMPORT)

void CVCalendarBioControl::ImportVCalendarL()

    {

	LOG("CVCalendarBioControl::ImportVCalendarL begin");

	CCalenImporter* calImporter = CCalenImporter::NewL( *iSession );

    CleanupStack::PushL( calImporter );

    calImporter->SetImportMode( ECalenImportModeExtended );

    RFile fileHandle;

    ResolveFileL( fileHandle );

    RFileReadStream stream( fileHandle,0 );

    CleanupClosePushL( stream );

    TBuf8<KReadDataAmount> vcalData;

    TInt errRead( KErrNone );

    TRAP( errRead,stream.ReadL( vcalData,KReadDataAmount ) );

    if( errRead != KErrEof && errRead != KErrNone )

    	{

    	User::Leave( KVCalBcLeaveCodeCorrupt );

    	}

	//return the read stream back to the beginning for import

    stream.Source()->SeekL( MStreamBuf::ERead, EStreamBeginning, 0 );

    TInt errImport( KErrNone );

    //Reset the array if its already imported.

    if(iCalEntryArray.Count())

    iCalEntryArray.ResetAndDestroy();

    if ( vcalData.FindF( KVersionVCal ) == KErrNotFound )

		{

		//using the ICAl import API

		TRAP( errImport, calImporter->ImportICalendarL( stream, iCalEntryArray ) );

        }

    else if ( vcalData.FindF( KVersionICal ) == KErrNotFound )

        {

        //using the VCAL import API

        TRAP( errImport, calImporter->ImportVCalendarL( stream, iCalEntryArray ) );

        }

    CleanupStack::PopAndDestroy( 2, calImporter ); //stream, calImporter

    if( errImport != KErrNone || iCalEntryArray.Count() == 0 )

        {

	    LOG1("CVCalendarBioControl::ImportVCalendarL ERROR %d", err);

	    LOG1("CVCalendarBioControl::ImportVCalendarL ERROR imported cal entry count %d", iCalEntryArray.Count() );

        // the data was corrupt

        User::Leave( KVCalBcLeaveCodeCorrupt );

        }

    //BIO viewer always sets the local UID to 0 in imported entry

    iCalEntryArray[0]->SetLocalUidL( TCalLocalUid(0) );

	LOG("CVCalendarBioControl::ImportVCalendarL end");

    }

#else

void CVCalendarBioControl::ImportVCalendarL()

    {

    LOG("CVCalendarBioControl::ImportVCalendarL begin");

    CCalenImporter* calImporter = CCalenImporter::NewL( *iSession );

    CleanupStack::PushL( calImporter );

    calImporter->SetImportMode( ECalenImportModeExtended );

    RFile fileHandle;

    ResolveFileL( fileHandle );

    RFileReadStream stream( fileHandle,0 );

    CleanupClosePushL( stream );

    iCalEntryArray.ResetAndDestroy();

    TRAPD( err, calImporter->ImportVCalendarL( stream, iCalEntryArray ) );

    CleanupStack::PopAndDestroy( 2,calImporter );//stream, calImporter

    if( err != KErrNone || iCalEntryArray.Count() == 0 )

        {

	    LOG1("CVCalendarBioControl::ImportVCalendarL ERROR %d", err);

	    LOG1("CVCalendarBioControl::ImportVCalendarL ERROR imported cal entry count %d", iCalEntryArray.Count() );

        // the data was corrupt

        User::Leave( KVCalBcLeaveCodeCorrupt );

        }

    //BIO viewer always sets the local UID to 0 in imported entry

    iCalEntryArray[0]->SetLocalUidL( TCalLocalUid(0) );

	LOG("CVCalendarBioControl::ImportVCalendarL end");

    }

#endif

void CVCalendarBioControl::ResolveFileL( RFile& aFile )

    {

    if ( iIsFileBased )

        {

        //if filebased vcalendar message (opened via BVA)

        //we make a copy to a new handle from class variable iFileHandle

        aFile.Duplicate( iFileHandle );

        }

    else

        {

        //if vcal is opened from message then we fetch new handle from attachment

        CMsvEntry* entry = MsvSession().GetEntryL( iId );

        CleanupStack::PushL( entry );

		CMsvStore* store = entry->ReadStoreL();

		CleanupStack::PushL(store);

		MMsvAttachmentManager& attachMan = store->AttachmentManagerL();

		aFile = attachMan.GetAttachmentFileL( 0 ); //entry is the first attachment

		CleanupStack::PopAndDestroy( 2 ); // store, entry

        }

    }

void CVCalendarBioControl::FileBasedAddMenuItemL(CEikMenuPane& aMenuPane,

    TInt aStringRes, TInt aCommandOffset)

    {

    CEikMenuPaneItem::SData menuItem;

    menuItem.iCascadeId = NULL;

    menuItem.iFlags = NULL;

    menuItem.iText.Format(*StringLoader::LoadLC(aStringRes, iCoeEnv));

    CleanupStack::PopAndDestroy(); // (string)

    menuItem.iCommandId = iBioControlObserver.FirstFreeCommand()

        + aCommandOffset;

    aMenuPane.InsertMenuItemL(menuItem, 0);

    }

void CVCalendarBioControl::OpenStreamLC(RFileReadStream& aStream,

    TFileName& aFileName)

    {

    User::LeaveIfError( aStream.Open(

        CCoeEnv::Static()->FsSession(),

        aFileName,

        EFileStream ));

    aStream.PushL();

    }

CVCalendarBioControl::CVCalendarBioControl(

    MMsgBioControlObserver& aObserver,

    CMsvSession* aSession,

    TMsvId aId,

    TMsgBioMode aEditorOrViewerMode,

    const RFile* aFile):

        CMsgBioControl(aObserver,

            aSession,

            aId,

            aEditorOrViewerMode,

            aFile),

        iCalEntryInitErrno( KErrNone )

    {

    }

void CVCalendarBioControl::ConstructL()

    {

	LOG("CVCalendarBioControl::ConstructL begin");

	SetExtension( this );

    iIsFileBased = IsFileBased();

    LoadResourceL(KVCalBCResourceFile);

    LoadResourceL(KAvkonResourceFile);

    LoadResourceL(KBvaResourceFile, KDC_APP_RESOURCE_DIR);

    LoadResourceL(KSmsViewerResourceFile, KDC_APP_RESOURCE_DIR);

    LoadStandardBioResourceL();

    iSession = CCalSession::NewL();

    // Which calendar file should be used.

	TRAPD( err, iSession->OpenL( iSession->DefaultFileNameL() ) );

    if ( err == KErrNotFound )

        {

        // If calendar file was not found, should we create it or not?

        // I think is not BIO control's responsibility to create it.

        //

        iSession->CreateCalFileL( iSession->DefaultFileNameL() );

	    iSession->OpenL( iSession->DefaultFileNameL() );

        }

    else

        {

        User::LeaveIfError( err );

        }

    //make a copy of the filehandle if the vcal is opened from a file

    //this is because it cannot be acquired later since it goes out of scope

    if ( iIsFileBased )

        {

		iFileHandle.Duplicate(FileHandle());

        }

	RFile fileHandle;

	ResolveFileL(fileHandle);

    RFileReadStream stream( fileHandle,0 );

    CleanupClosePushL( stream );

    MStreamBuf* buf = stream.Source();

    buf->PushL();

    User::LeaveIfNull(buf);

    TInt bufferSize = buf->SizeL();

    if (bufferSize == 0 || (bufferSize < KLengthBeginVCalendar))

        {

        User::Leave(KErrMsgBioMessageNotValid);

        }

    FeatureManager::InitializeLibL();

    ImportVCalendarL();

    iViewer = new (ELeave) CRichBio(ERichBioModeEditorBase);

    CVCalBcDataFiller::FillViewerWithDataL(

        *iViewer, *iCalEntryArray[KIndexFirst], *iCoeEnv);