/*

* 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:  Data buffer transaction element

*

*/

#include    "databuffertransactionelement.h"

#include    "aixmluiutils.h"

#include    "xntype.h"

#include    "xntext.h"

#include    "xnnewsticker.h"

#include    "xnmenuadapter.h"

#include    "mxncomponentinterface.h"

#include    "xnvolumecontrol.h"

#include    "xnnodeappif.h"

#include    "xnuiengineappif.h"

#include    "xnproperty.h"

#include    "xndompropertyvalue.h"

#include    "aistrcnv.h"

#include    "aixmluiconstants.h"

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

using namespace AiXmlUiController;

using namespace XnTextInterface;

CDataBufferTransactionElement::CDataBufferTransactionElement(AiUtility::CContentPriorityMap& aContentPriorityMap)

    : CTransactionElement(aContentPriorityMap)

    {

    }    

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

    {

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

    return self;

    }

CDataBufferTransactionElement::~CDataBufferTransactionElement()

    {

    }

void CDataBufferTransactionElement::InitializeL( CXnNodeAppIf& aTarget, const TDesC8& aData )

    {

    CheckTypeL( aTarget );

    SetTarget( aTarget );

    }

void CDataBufferTransactionElement::UpdateDataL()

    {

    // Set new text

    SetDataL();

    // Update content priority

    UpdateContentPriorityL();

    }

void CDataBufferTransactionElement::Reset()

    {

    CTransactionElement::Reset();

    }

TBool CDataBufferTransactionElement::IsSupported( CXnNodeAppIf& aTarget,

                                                  const TDesC8& aContentType )

    {

    // Get target type info

    CXnType* typeInfo = aTarget.Type();

    if ( !typeInfo )

        {

        return EFalse;

        }

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

    if ( aContentType == KContentTypeText ) // Text

        {

        // Text element and menu item supports

        return ( type == XnTextInterface::MXnTextInterface::Type() ||

                 type == KXnMenuItem || 

                 type == KXnMenu ||

                 type == XnPropertyNames::softkey::KNodeName ||

                 type == XnPropertyNames::volumecontrol::KSlider );

        }

    else if ( aContentType == KContentTypeImageSvg ) // SVG image

        {

        // Newsticker support

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

        }

    return EFalse;

    }

void CDataBufferTransactionElement::CheckTypeL( CXnNodeAppIf& aTarget )

    {

    // Get type info

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

    if ( type != XnTextInterface::MXnTextInterface::Type() &&

         type != KXnMenuItem &&

         type != KXnMenu &&

         type != XnPropertyNames::softkey::KNodeName && 

         type != XnPropertyNames::volumecontrol::KSlider &&

        {

        User::Leave( KErrNotSupported );

        }

    }

void CDataBufferTransactionElement::SetDataL()

    {

    // Get type info

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

    if ( type == XnTextInterface::MXnTextInterface::Type() ) // Text element

        {

        // Set character data directly to target

        }

    else if (  type == XnPropertyNames::softkey::KNodeName ||

            type == KXnMenuItem || 

            type == KXnMenu ) // menu item

        {

        // Update label attribute value.

        // 

        CXnNodeAppIf& target = Target();

        // Create new new label attribute value

        CXnDomPropertyValue* propertyValue =

            CXnDomPropertyValue::NewL( &target.UiEngineL()->StringPool() );

        CleanupStack::PushL( propertyValue );

        propertyValue->SetStringValueL( CXnDomPropertyValue::EString,

        CXnProperty* newProperty = CXnProperty::NewL( XnPropertyNames::menu::KLabel,

                                                      propertyValue,

                                                      target.UiEngineL()->StringPool() );

        CleanupStack::Pop( propertyValue );

        CleanupStack::PushL( newProperty );

        // Set label attribute

        target.SetPropertyL( newProperty );

        CleanupStack::Pop( newProperty );

        // Refresh menu

        target.UiEngineL()->RefreshMenuL();

        }

    else if ( type == XnPropertyNames::volumecontrol::KSlider ) // slider

        {

        // Get volume control interface

        XnVolumeControlInterface::MXnVolumeControlInterface* volumeControl = NULL;

        XnComponentInterface::MakeInterfaceL( volumeControl, Target() );

        LeaveIfNull( volumeControl, KErrNotSupported );

        TInt32 volume = 0;

        volumeControl->SetValue( volume );

        }

    else

        {

        User::Leave( KErrNotSupported );

        }

    }

//  End of File