/*

* Copyright (c) 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: This file contains CMenuListBox class definition.

*

*/

// INCLUDE FILES

#include "MenuListBox.h"

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

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

// CMainMenuView::CMenuListBox

// 

// c++ constructor

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

//

CMenuListBox::CMenuListBox(TAppUIViewNumber aViewId) 

	: CAknSingleStyleListBox(), iViewId(aViewId)

	{

	}

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

// CMenuListBox::ConstructL

// 

// Symbian OS two-phased constructor

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

//

void CMenuListBox::ConstructL()

	{

	}

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

// CMenuListBox::~CMenuListBox

// 

// Destructor

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

//

CMenuListBox::~CMenuListBox()

	{

	}

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

// CMenuListBox::NewL

// 

// Symbian OS public constructor

// @param aViewId - id of view to identify position in array where focus position will be saved to

// or retrieved from

//

// @return - pointer to an instance of CMenuListBOx

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

//

CMenuListBox* CMenuListBox::NewL(TAppUIViewNumber aViewId)

	{

	CMenuListBox* self = new(ELeave) CMenuListBox(aViewId);

	CleanupStack::PushL(self);

	self->ConstructL();

	CleanupStack::Pop(self);

	return self;

	}

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

// CMenuListBox::SaveFocusPosition

// 

// Saves current focus position to CAppUiAppUi object

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

//

void CMenuListBox::SaveFocusPosition()

	{

	((CAppUIAppUi*)iCoeEnv->AppUi())->SaveFocusPosition(iViewId, this->CurrentItemIndex());

	}

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

// CMenuListBox::SetPreviousFocus

// 

// Retrieves previous focus position from CAppUiAppUi object and sets focus

// to that position

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

//

void CMenuListBox::SetPreviousFocus()

	{

	TInt previousPosition = ((CAppUIAppUi*)iCoeEnv->AppUi())->GetFocusPosition(iViewId);

	if(previousPosition != KErrNotFound)

		{

		if(previousPosition < this->Model()->NumberOfItems() && previousPosition != 0)

			{

			this->SetCurrentItemIndex(previousPosition);

			}

		if(previousPosition >= this->Model()->NumberOfItems()) 

			{

			this->SetCurrentItemIndex(0); // setting current item to first element if pervious position is grater then current. 

			}

		this->SetTopItemIndex(0);

		}

	}