/*

* 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:  Callback handler for newsticker component callbacks

*

*/

#include "newstickercallbackhandler.h"

#include "aifweventhandler.h"

#include "aiconsts.h"

#include "aixmluiconstants.h"

#include "aistrcnv.h"

using namespace AiXmlUiController;

const TInt KRadix = 10;

const TText16 KPluginEventParameterSeparator = ',';

const TText16 KEventParameterTerminator = ')';

static TInt IndexLength( TInt aIndex )

    {

    TInt length = 0;

    if ( aIndex < 0 )

        {

        ++length;

        }

    do

        {

        aIndex /= KRadix;

        ++length;

        }

    while ( aIndex != 0 );

    return length;

    }

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

CNewstickerCallbackHandler::CNewstickerCallbackHandler( MAiFwEventHandler& aFwEventHandler )

    : iFwEventHandler( aFwEventHandler )

    {

    }

CNewstickerCallbackHandler* CNewstickerCallbackHandler::NewLC( MAiFwEventHandler& aFwEventHandler )

    {

    CNewstickerCallbackHandler* self = new( ELeave ) CNewstickerCallbackHandler( aFwEventHandler );

    CleanupStack::PushL( self );

    return self;

    }

CNewstickerCallbackHandler::~CNewstickerCallbackHandler()

    {

    delete iEventBuffer;

    }

void CNewstickerCallbackHandler::TitleScrolledL( const TDesC& aPublisherName,

                                                 const TDesC& aPublishingClass,

                                                 TInt aIndex )

    {

    SendEventToNewstickerPluginL( AiUiDef::xml::event::KNewstickerTitleScrolled,

                                    aPublisherName,

                                    aPublishingClass,

                                    aIndex);

    }

void CNewstickerCallbackHandler::TitleToScrollL( const TDesC& aPublisherName,

                                                 const TDesC& aPublishingClass,

                                                 TInt aIndex )

    {

    SendEventToNewstickerPluginL( AiUiDef::xml::event::KNewstickerTitleToScroll,

                                    aPublisherName,

                                    aPublishingClass,

                                    aIndex);

    }

void CNewstickerCallbackHandler::SendEventToNewstickerPluginL( const TDesC& aEvent,

                                                        const TDesC& aPublisherName,

                                                        const TDesC& aPublishingClass,

                                                        TInt aIndex)

    {

        // Calculate event buffer length

    TInt length = aPublisherName.Length()

                  + KPluginEventSeparatorLength

                  + aEvent.Length()

                  + KEventParameterSeparatorLength

                  + aPublishingClass.Length()

                  + KEventParameterSeparatorLength

                  + IndexLength( aIndex )

                  + KEventParameterSeparatorLength;

    // Allocate event buffer

    TPtr event = AiUtility::EnsureBufMaxLengthL( iEventBuffer, length );

    // Create event string

    event.Zero();

    event.Append( aPublisherName );

    event.Append( KPluginEventSeparator );

    event.Append( aEvent );

    event.Append( KEventParameterSeparator );

    event.Append( aPublishingClass );

    event.Append( KPluginEventParameterSeparator );

    event.AppendNum( aIndex );

    event.Append( KEventParameterTerminator );

    // Send event to plugin

    // TODO: fix namespace

    iFwEventHandler.HandlePluginEvent( event );

    }