/*

* Copyright (c) 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:  

*

*/

#include <e32cmn.h>

#include <liwcommon.h>

#include <liwgenericparam.h>

#include <s32mem.h>

#include "mcsdef.h"

#include "mcsgetlisthandler.h"

#include "mcsmenufilter.h"

#include "menusrveng.h"

#include "menusrvobjectfilter.h"

#include "mcsgetlistcreatorinterface.h"

#include "mcsgetlistflatcreator.h"

#include "mcsgetlisttreecreator.h"

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

// CMcsGetlistHandler::NewL

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

//

CMcsGetlistHandler* CMcsGetlistHandler::NewL( CMenuSrvEng& aEng )

	{

	CMcsGetlistHandler* self;

	self = new ( ELeave ) CMcsGetlistHandler( aEng );

	CleanupStack::PushL( self );

	self->ConstructL();

	CleanupStack::Pop( self );

	return self;

	}

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

// CMcsGetlistHandler::~CMcsGetlistHandler

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

//

CMcsGetlistHandler::~CMcsGetlistHandler()

    {

    CloseOutputBuffer();

    }

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

// CMcsGetlistHandler::~CMcsGetlistHandler

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

//

void CMcsGetlistHandler::CloseOutputBuffer()

	 {

	 iOutputBuffer.Close();

	 }

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

// CMcsGetlistHandler::CMcsGetlistHandler

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

//

CMcsGetlistHandler::CMcsGetlistHandler( CMenuSrvEng& aEng ):

	iEng(aEng)

    {

    }

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

// CMcsGetlistHandler::ConstructL

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

//

void CMcsGetlistHandler::ConstructL()

    {

    }

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

// CMcsGetlistHandler::GetListSizeL

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

//

TInt CMcsGetlistHandler::GetListSizeL( const TDesC8& aSerializedInput )

    {

    CloseOutputBuffer();

	//Internalize

    CLiwGenericParamList* inputList = CLiwGenericParamList::NewLC();

	RDesReadStream stream( aSerializedInput );

	CleanupClosePushL( stream );

	inputList->InternalizeL( stream ) ;

	CleanupStack::PopAndDestroy( &stream );

	//fetch basic parameters

	TInt folderId( KErrNotFound );

	TBasicParameters basicParameters; //flag - TBasicParameters

	FetchBasicParametersL( inputList, folderId, basicParameters );

	//fetch required and ignored attributes

    CDesC16Array* ignoredAttributes = new (ELeave) CDesC16ArrayFlat(1);

    CleanupStack::PushL( ignoredAttributes );

    CDesC16Array* requiredAttributes = new (ELeave) CDesC16ArrayFlat(8);

    CleanupStack::PushL( requiredAttributes );

	FetchRequiredAndIgnoredAttributesL( inputList,

				requiredAttributes, ignoredAttributes );

	//fetch filter

	CMenuFilter* filter = CMenuFilter::NewLC();

	if ( !( basicParameters & EGetListParentOnly ) )

		{

		if ( FetchFilterL( inputList, filter ) )

			{

			//if filter is present we change result type to "flat"

			basicParameters |= EGetListFlat;

			}

		}

	RArray<TMenuItem> itemsArray;

	CleanupClosePushL ( itemsArray );

	FetchItemsIdsL( itemsArray, folderId, filter, basicParameters );

	//create output list

	CMcsGetListCreatorInterface* outputListCreator;

	if ( basicParameters & EGetListFlat )

		{

		outputListCreator = CMcsGetlistFlatCreator::NewL( iEng );

		}

	else

		{

		outputListCreator = CMcsGetlistTreeCreator::NewL( iEng );

		}

	CleanupStack::PushL( outputListCreator );

	CLiwDefaultList* outputList =

		outputListCreator->CreateLC( itemsArray, requiredAttributes,

				ignoredAttributes );

	TLiwVariant lvList( outputList );

	lvList.PushL();

	TLiwGenericParam lgpList( KReturnValue, lvList );

	lgpList.PushL();

	CLiwGenericParamList* outParamList = CLiwGenericParamList::NewLC();

	outParamList->AppendL( lgpList );

	iOutputBuffer.CreateL( outParamList->Size() );

	RDesWriteStream datastrm( iOutputBuffer );

	CleanupClosePushL(datastrm);

	outParamList->ExternalizeL(datastrm);

	datastrm.CommitL();

    CleanupStack::PopAndDestroy(&datastrm);

	CleanupStack::PopAndDestroy( outParamList );

	CleanupStack::PopAndDestroy( &lgpList );

	CleanupStack::PopAndDestroy( &lvList );

	CleanupStack::PopAndDestroy( outputList );

	CleanupStack::PopAndDestroy( outputListCreator );

	CleanupStack::PopAndDestroy( &itemsArray );

	CleanupStack::PopAndDestroy( filter );

	CleanupStack::PopAndDestroy( requiredAttributes );

	CleanupStack::PopAndDestroy( ignoredAttributes );

	CleanupStack::PopAndDestroy( inputList );

    return iOutputBuffer.Size();

    }

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

// CMcsGetlistHandler::GetListSizeL

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

//

TPtrC8 CMcsGetlistHandler::GetListDataL( )

    {

    return TPtrC8( iOutputBuffer );

    }

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

// CMcsGetlistHandler::FetchBasicParametersL

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

//

void CMcsGetlistHandler::FetchBasicParametersL(

		const CLiwGenericParamList* aInputList,

		TInt& aFolderId, TBasicParameters& aBasicParameters )

	{

	TInt error( KErrNone );

	TInt pos = 0;

	aBasicParameters = !EGetListRecursive |

						EGetListFlat |

					   !EGetListParentOnly |

					   !EGetListIncludeParent;

	const TLiwGenericParam* inParam = aInputList->FindFirst( pos, KInData );

	if (inParam)

	    {

	    const CLiwMap* inputMap = inParam->Value().AsMap();

	    if ( inputMap )

            {

            TLiwVariant param;

            // Folder Id

            if( inputMap->FindL( KMenuAttrId8, param ) )

                {

                TInt32 folderId( KErrNotFound );

                param.Get( folderId );

                aFolderId = folderId;

                }

            else

            	{

            	error = KErrArgument;

            	}

            param.Reset();

        	if ( aFolderId == 0 )

        		{

        		iEng.Engine().RootFolderL( aFolderId );

        		}

        	// Include parent in the result

        	if( inputMap->FindL( KIncludeParent, param) )

        		{

        		if ( param.AsTBool() )

        			{

        			aBasicParameters |= EGetListIncludeParent;

        			}

        		}

        	param.Reset();

            // GetList search type

            if( inputMap->FindL( KRecursiveSearch, param ) )

                {

                if ( param.AsTBool( ) )

                	{

                	aBasicParameters |= EGetListRecursive;

                	}

	            }

	        param.Reset();

	        // Result List type (Flat/tree)

	        if( inputMap->FindL( KFlatResult, param ) )

                {

                if ( !param.AsTBool() )

                   	{

                   	aBasicParameters &= ~EGetListFlat;

                   	}

                }

            param.Reset();

            // Search only specific Item

            if( inputMap->FindL( KParentOnly, param ) )

                {

                if ( param.AsTBool() )

                   	{

                   	aBasicParameters |= EGetListParentOnly;

                   	aBasicParameters |= EGetListFlat;

                   	}

                }

            param.Reset();

            }

	    else

	    	{

	    	error = KErrArgument;

	    	}

	    }

	else

		{

    	error = KErrArgument;

		}

	User::LeaveIfError( error );

	}

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

// CMcsGetlistHandler::FetchRequiredAndIgnoredAttributesL

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

//

void CMcsGetlistHandler::FetchRequiredAndIgnoredAttributesL(

		const CLiwGenericParamList* aInputList,

		CDesC16Array* aRequiredAttributes,

		CDesC16Array* aIgnoredAttributes )

	{

	TInt pos = 0;

	const TLiwGenericParam* inFilter = aInputList->FindFirst( pos, KFilter );

	if (inFilter)

        {

        const CLiwMap* inputMap = inFilter->Value().AsMap();

        if( inputMap )

            {

            TLiwVariant variant;

            variant.PushL();

            if( inputMap->FindL( KIgnoreAttributes, variant ) )

                {

                GetAttributesL( variant.AsDes(), aIgnoredAttributes );

                }

            if( inputMap->FindL( KRequiredAttributes, variant ) )

                {

                GetAttributesL( variant.AsDes(), aRequiredAttributes );

                }

            CleanupStack::PopAndDestroy( &variant );

            }

        }

	}

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

// CMcsGetlistHandler::FetchFilterL

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

//

TBool CMcsGetlistHandler::FetchFilterL( const CLiwGenericParamList* aInputList,

		CMenuFilter* aFilter )

	{

	TBool filterPresent( EFalse );

	TInt pos = 0;

	const TLiwGenericParam* inFilter = aInputList->FindFirst( pos, KFilter );

	if ( inFilter )

        {

        const CLiwMap* inputMap = inFilter->Value().AsMap();

        if ( inputMap )

            {

            TLiwVariant param;

            filterPresent = ETrue;

           	// Type

            if( inputMap->FindL( KType, param) )

                {

                aFilter->SetType( param.AsDes( ) );

                }

            param.Reset();

           	SetFlagsL( inputMap, aFilter );

           	// ref_id

            SetAttributeNumL( inputMap, KMenuAttrRefId( ), aFilter );

            SetAttributeDesL( inputMap, KMenuAttrShortName( ), aFilter );

            SetAttributeDesL( inputMap, KMenuAttrTitleName( ), aFilter );

            SetAttributeDesL( inputMap, KMenuAttrLongName( ), aFilter );

            SetAttributeDesL( inputMap, KMenuAttrIconFile( ), aFilter );

            SetAttributeDesL( inputMap, KMenuAttrAppGroupName( ), aFilter );

            SetAttributeHexFormatL( inputMap, KMenuAttrUid( ), aFilter );

            SetAttributeBoolL( inputMap, KMenuAttrDefault( ), aFilter );

            SetAttributeHexFormatL( inputMap, KMenuAttrView( ), aFilter );

            SetAttributeDesL( inputMap, KMenuAttrUrl( ), aFilter );

            SetAttributeHexFormatL( inputMap, KMenuAttrIconId( ), aFilter );

            SetAttributeHexFormatL( inputMap, KMenuAttrMaskId( ), aFilter );

            SetAttributeHexFormatL( inputMap, KMenuAttrIconSkinMajorId( ),

            		aFilter );

            SetAttributeHexFormatL( inputMap, KMenuAttrIconSkinMinorId( ),

            		aFilter );

            SetAttributeDesL( inputMap, KMenuAttrM3gIconFile( ), aFilter );

            }

        }

	return filterPresent;

	}

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

// CMcsGetlistHandler::FetchItemsIdsL

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

void CMcsGetlistHandler::FetchItemsIdsL( RArray<TMenuItem>& aItemArray,

		TInt aFolderId, CMenuFilter* aFilter,

		TBasicParameters& aBasicParameters )

    {

    if( aBasicParameters & ( EGetListParentOnly | EGetListIncludeParent ) )

    	{

        TMenuItem item;

        iEng.Engine().GetItemL( aFolderId, item );

        aItemArray.AppendL( item );

    	}

    if( !( aBasicParameters & EGetListParentOnly ) )

        {

        TMenuSrvObjectFilter engFilter( *aFilter );

        iEng.Engine().GetItemsL( aItemArray, aFolderId, &engFilter,

        		aBasicParameters & EGetListRecursive );

        }

    }

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

// CMcsGetlistHandler::GetAttributesL

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

//

void CMcsGetlistHandler::GetAttributesL( const TDesC& aList, CDesC16Array* aArray )

    {

    TLex input( aList );

    TLexMark startMark;

    input.Mark( startMark );

    TBool notEmpty = EFalse;

    while ( !input.Eos() )

        {

        if( input.Peek() == ':')

            {

            aArray->AppendL( input.MarkedToken( startMark ) );

            input.Inc();

            input.Mark( startMark );

            }

        input.Inc();

        notEmpty = ETrue;

        }

    if ( notEmpty )

        {

        aArray->AppendL( input.MarkedToken( startMark ) );

        }

    }

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

// CMcsGetlistHandler::SetFlagsL

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

//

void CMcsGetlistHandler::SetFlagsL( const CLiwMap* aInputMap,

		CMenuFilter* aFilter )

    {

    TInt flagson = 0;

    TInt flagsoff = 0;

    TLiwVariant param;

    param.PushL( );

    if( aInputMap->FindL( KNameLocked, param))

        {

         if(param.AsTBool())

             {

             flagson = flagson + TMenuItem::ELockName;

             }

         else

             {

             flagsoff = flagsoff + TMenuItem::ELockName;

             }

        }

    param.Reset();

    if( aInputMap->FindL( KIconLocked, param))

        {

         if(param.AsTBool())

             {

             flagson = flagson + TMenuItem::ELockIcon;

             }

         else

             {

             flagsoff = flagsoff + TMenuItem::ELockIcon;

             }

        }

    param.Reset();

    if( aInputMap->FindL( KDeleteLocked, param))

        {

         if(param.AsTBool())

             {

             flagson = flagson + TMenuItem::ELockDelete;

             }

         else

             {

             flagsoff = flagsoff + TMenuItem::ELockDelete;

             }

        }

    param.Reset();

    if( aInputMap->FindL( KMoveLocked, param))

        {

         if(param.AsTBool())

             {

             flagson = flagson + TMenuItem::ELockItem;

             }

         else

             {

             flagsoff = flagsoff + TMenuItem::ELockItem;

             }

        }

    param.Reset();

    if( aInputMap->FindL( KAddingLocked, param))

        {

         if(param.AsTBool())

             {

             flagson = flagson + TMenuItem::ELockMoveInto;

             }

         else

             {

             flagsoff = flagsoff + TMenuItem::ELockMoveInto;

             }

        }

    param.Reset();

    if( aInputMap->FindL( KHidden, param))

        {

         if(param.AsTBool())

             {

             flagson = flagson + TMenuItem::EHidden;

             }

         else

             {

             flagsoff = flagsoff + TMenuItem::EHidden;

             }

        }

    param.Reset();

    if( aInputMap->FindL( KMissing, param))

        {

         if(param.AsTBool())

             {

             flagson = flagson + TMenuItem::EMissing;

             }

         else

             {

             flagsoff = flagsoff + TMenuItem::EMissing;

             }

        }

    aFilter->SetFlags(flagson,flagsoff);

    CleanupStack::PopAndDestroy( &param );

    }

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

// CMcsGetlistHandler::SetAttributeDesL

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

//

void CMcsGetlistHandler::SetAttributeDesL( const CLiwMap* aInputMap,

                               const TDesC& aAttrName, CMenuFilter* aFilter )

    {

    TLiwVariant param;

    param.PushL( );

    TBuf8<KMenuMaxAttrNameLen> attrname;

    attrname.Copy( aAttrName );

    if( aInputMap->FindL( attrname, param ) )

        {

        aFilter->HaveAttributeL(aAttrName, param.AsDes() );

        }

    CleanupStack::PopAndDestroy( &param );

    }

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

// CMcsGetlistHandler::SetAttributeHexFormatL

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

//

void CMcsGetlistHandler::SetAttributeHexFormatL( const CLiwMap* aInputMap,

                                const TDesC& aAttrName, CMenuFilter* aFilter )

    {

    TLiwVariant param;

    param.PushL( );

    TBuf8<KMenuMaxAttrNameLen> attrname;

    TBuf16<KMenuMaxAttrValueLen> paramValStr;

    attrname.Copy( aAttrName );