/*
* 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:  CLandmarkObserver class implementation
*
*/


// INCLUDE FILES
#include <liwgenericparam.h>
#include <liwcommon.h>
#include "clandmarkobserver.h"
#include "clandmarkiterable.h"
#include "clandmarkcategoryiterable.h"
#include "landmarkinterface.h"
#include "landmarkliwparams.hrh"
#include "../../inc/serviceerrno.h"

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

// -----------------------------------------------------------------------------
// CLandmarkObserver::NewL( CLandmarkInterface* aLmIface )
// Two-phased constructor.
// -----------------------------------------------------------------------------
//
CLandmarkObserver* CLandmarkObserver::NewL( CLandmarkInterface* aLmIface )
    {
    CLandmarkObserver* self = new (ELeave) CLandmarkObserver(aLmIface);
    return self;
    }

// -----------------------------------------------------------------------------
// CLandmarkObserver::CLandmarkObserver( CLandmarkInterface* aLmIface )
// C++ default constructor can NOT contain any code, that might leave.
// -----------------------------------------------------------------------------
//
CLandmarkObserver::CLandmarkObserver( CLandmarkInterface* aLmIface )
									: iLmIface(aLmIface)
    {
    }

// -----------------------------------------------------------------------------
// CLandmarkObserver::HandleCategoryItems( CPosLmItemIterator* aIterator, 
// 		TInt32 aTransactionId, TInt aError, const TDesC aDatabaseUri )
// Pack the outputs and call the callback function.
// -----------------------------------------------------------------------------
//
void CLandmarkObserver::HandleLandmarkItemsL( CPosLmItemIterator* aIterator, 
		TInt32 aTransactionId, TInt aError, const TDesC& aDatabaseUri )
    {
    TInt SapiErr = SErrNone;
    //retrieve callback
    MLiwNotifyCallback* callback = iLmIface->Callback(aTransactionId);
    if( !callback )
    	{
    	//how to flag error
    	return;
    	}
    //Create param list
    CLiwGenericParamList* eventParamList = CLiwGenericParamList::NewL();
    CleanupStack::PushL(eventParamList);
    CLiwGenericParamList* inParamList = CLiwGenericParamList::NewL();
    CleanupStack::PushL(inParamList);
    
    if ( aError != KErrNone )
        {
        SapiErr = iLmIface->SapiError(aError);
        eventParamList->AppendL(TLiwGenericParam(KErrorCode,TLiwVariant((TInt32)SapiErr)));
        callback->HandleNotifyL(aTransactionId,KLiwEventError,*eventParamList,*inParamList);
        }
    else
    	{
    	//instantiate CLandmarkIterable
        CLiwIterable* iterable = CLandmarkIterable::NewL(aIterator,aDatabaseUri);
        CleanupClosePushL(*iterable);
        //pack to aOutParamList
        eventParamList->AppendL(TLiwGenericParam(KErrorCode,TLiwVariant((TInt32)SapiErr)));
        eventParamList->AppendL(TLiwGenericParam(KReturnValue,TLiwVariant(iterable)));
        callback->HandleNotifyL(aTransactionId,KLiwEventCompleted,*eventParamList,*inParamList);
        CleanupStack::PopAndDestroy(iterable);
    	}
    CleanupStack::PopAndDestroy(inParamList);
    CleanupStack::PopAndDestroy(eventParamList);
    }

// -----------------------------------------------------------------------------
// CLandmarkObserver::HandleCategoryItems( CPosLmItemIterator* aIterator, 
// 		TInt32 aTransactionId, TInt aError, const TDesC aDatabaseUri  )
// Pack the outputs and call the callback function.
// -----------------------------------------------------------------------------
//
void CLandmarkObserver::HandleCategoryItemsL( CPosLmItemIterator* aIterator, 
		TInt32 aTransactionId, TInt aError, const TDesC& aDatabaseUri )
    {
    TInt SapiErr = SErrNone;
    //retrieve callback
    MLiwNotifyCallback* callback = iLmIface->Callback(aTransactionId);
    if( !callback )
    	{
    	//how to flag error
    	return;
    	}
    //Create param list
    CLiwGenericParamList* eventParamList = CLiwGenericParamList::NewL();
    CleanupStack::PushL(eventParamList);
    CLiwGenericParamList* inParamList = CLiwGenericParamList::NewL();
    CleanupStack::PushL(inParamList);
    
    if ( aError != KErrNone )
        {
        SapiErr = iLmIface->SapiError(aError);
        eventParamList->AppendL(TLiwGenericParam(KErrorCode,TLiwVariant((TInt32)SapiErr)));
        callback->HandleNotifyL(aTransactionId,KLiwEventError,*eventParamList,*inParamList);
        }
    else
    	{
    	//instantiate CLandmarkIterable
        CLiwIterable* iterable = CLandmarkCategoryIterable::NewL(aIterator,aDatabaseUri);
        CleanupClosePushL(*iterable);
        //pack to aOutParamList
        eventParamList->AppendL(TLiwGenericParam(KErrorCode,TLiwVariant((TInt32)SapiErr)));
        eventParamList->AppendL(TLiwGenericParam(KReturnValue,TLiwVariant(iterable)));
        callback->HandleNotifyL(aTransactionId,KLiwEventCompleted,*eventParamList,*inParamList);
        CleanupStack::PopAndDestroy(iterable);
    	}
    CleanupStack::PopAndDestroy(inParamList);
    CleanupStack::PopAndDestroy(eventParamList);
    }

//End of file