/*

* Copyright (c) 2005-2007 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:  News ticker transaction element

*

*/

#include    "newstickertransactionelement.h"

#include    "aixmluiutils.h"

#include    "xntype.h"

#include    "xnproperty.h"

#include    "xntext.h"

#include    "xnmenuadapter.h"

#include    "xnnewsticker.h"

//#include    <xnmarquee.h>

#include    "mxncomponentinterface.h"

#include    "xnnodeappif.h"

#include    "xnuiengineappif.h"

#include    "xnproperty.h"

#include    "xndompropertyvalue.h"

#include    "xnvolumecontrol.h"

#include    "aistrcnv.h"

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

using namespace AiXmlUiController;

using namespace XnTextInterface;

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

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

//

CNewsTickerTransactionElement::CNewsTickerTransactionElement(AiUtility::CContentPriorityMap& aContentPriorityMap)

    : CTransactionElement(aContentPriorityMap)

    {

    }    

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

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

//

CNewsTickerTransactionElement* CNewsTickerTransactionElement::NewL(AiUtility::CContentPriorityMap& aContentPriorityMap)

    {

    CNewsTickerTransactionElement* self = new( ELeave ) CNewsTickerTransactionElement(aContentPriorityMap);

    return self;

    }

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

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

//

CNewsTickerTransactionElement::~CNewsTickerTransactionElement()

    {

    }

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

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

//

void CNewsTickerTransactionElement::InitializeL( CXnNodeAppIf& aTarget, const TDesC& aText, TInt aIndex )

    {

    CheckTypeL( aTarget );

    SetTarget( aTarget );

    iNewText.Set( aText );

    iIndex = aIndex;

    }

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

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

//

void CNewsTickerTransactionElement::UpdateDataL()

    {

    // Set new text

    SetTextL();

    // Update content priority

    UpdateContentPriorityL();

    }

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

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

//

void CNewsTickerTransactionElement::Reset()

    {

    CTransactionElement::Reset();

    iNewText.Set( KNullDesC );

    }

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

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

//

TBool CNewsTickerTransactionElement::IsSupported( CXnNodeAppIf& aTarget )

    {

    //  Is supported only if parent is <newsticker>

    CXnNodeAppIf* ntNode = NULL;

    TRAP_IGNORE( ntNode = aTarget.ParentL() );

    if ( !ntNode )

        {

        return EFalse;

        }

    CXnType* typeInfo = ntNode->Type();

    if ( !typeInfo )

        {

        return EFalse;

        }

    const TDesC8& type = typeInfo->Type();

    // Text element, menu item, newsticker, and marquee supported

    return ( type == XnNewstickerInterface::MXnNewstickerInterface::Type() );

    }

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

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

//

void CNewsTickerTransactionElement::CheckTypeL( CXnNodeAppIf& aTarget )

    {

    if ( !IsSupported( aTarget ) )

        {

        User::Leave( KErrNotSupported );

        }

    }

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

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

//

void CNewsTickerTransactionElement::SetTextL()

    {      

    // Titles are published to <newsticker> children elements

    CXnNodeAppIf* ntNode = Target().ParentL();

    LeaveIfNull( ntNode, KErrNotSupported );

    // Get type info

    const TDesC8& type = LeaveIfNull( ntNode->Type(), KErrNotSupported )->Type();

    if ( type == XnNewstickerInterface::MXnNewstickerInterface::Type() )

        {

        // Get Newsticker control interface

        XnNewstickerInterface::MXnNewstickerInterface* newsTicker = NULL;

        XnComponentInterface::MakeInterfaceL( newsTicker, *ntNode );

        LeaveIfNull( newsTicker, KErrNotSupported );

        TInt titleIndexVal = -1;

        CXnProperty* titleIndex = Target().GetPropertyL( XnPropertyNames::title::KTitleIndex );

        if ( titleIndex )

            {

            TLex8 lex( titleIndex->StringValue() );

            TInt err = lex.Val( titleIndexVal );

            if ( err == KErrNone && titleIndexVal > -1 )

                {

                newsTicker->UpdateTitleL( iNewText, titleIndexVal );            

                }            

            }

        }

    else

        {

        User::Leave( KErrNotSupported );

        }

    }

//  End of File