emailuis/uicomponents/fsscrollbarplugin/src/fsscrollbarfactory.cpp
author Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
Thu, 17 Dec 2009 08:39:21 +0200
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/*
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* Copyright (c) 2007 Nokia Corporation and/or its subsidiary(-ies). 
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* All rights reserved.
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* This component and the accompanying materials are made available
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* under the terms of "Eclipse Public License v1.0"
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* which accompanies this distribution, and is available
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* at the URL "http://www.eclipse.org/legal/epl-v10.html".
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*
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* Initial Contributors:
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* Nokia Corporation - initial contribution.
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*
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* Contributors:
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*
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* Description: Implements class TFsScrollBarFactory
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*
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*/
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#include "emailtrace.h"
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#include <implementationproxy.h>
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//<cmail> SF
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#include <alf/alfconstants.h>
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#include <alf/alflayouthandlers.h>
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//</cmail>
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#include "fsscrollbarfactory.h"
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#include "fsscrollbarlayouthandler.h"
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#include "fsscrollbarpluginconstants.h"
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// ======== LOCAL FUNCTIONS ========
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MAlfExtensionFactory* Instance()
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	{
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    FUNC_LOG;
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	TFsScrollbarFactory* me = NULL;
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	me = new TFsScrollbarFactory;
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	return me;
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	}
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const TImplementationProxy ImplementationTable[] =
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	{
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	//<cmail>
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    IMPLEMENTATION_PROXY_ENTRY( KFsScrollbarImplementationId,
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	                            Instance )
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    //</cmail>	                            
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	};
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EXPORT_C const TImplementationProxy* ImplementationGroupProxy(
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    TInt& aTableCount )
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	{
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	aTableCount = sizeof( ImplementationTable )
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        / sizeof( TImplementationProxy ) ;
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	return ImplementationTable;
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	}
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// ======== MEMBER FUNCTIONS ========
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// ---------------------------------------------------------------------------
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// From class MAlfExtensionFactory.
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// Creates new instace of required type (unique for factory) Must not take
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// ownership of created object.
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// ---------------------------------------------------------------------------
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//
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MAlfExtension* TFsScrollbarFactory::CreateExtensionL(
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    const TInt aObjectId,
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    const TDesC8& aInitialParams,
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    MAlfInterfaceProvider& aResolver )
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    {
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    FUNC_LOG;
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    MAlfExtension* result( NULL );
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    switch ( aObjectId )
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        {
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        case EFsScrollbarCreateScreenLayout:
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            {
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            TInt2* params = ( TInt2* )aInitialParams.Ptr();
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            CHuiControl* owner( NULL );
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            CHuiLayout* parentLayout( NULL );
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            if ( !params->iInt1 )
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                {
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                User::Leave( KErrArgument );
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                }
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            else
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                {
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                // currently we must use concrete owner as interface does not
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                // provide means to transfer ownership
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                owner = ( CHuiControl* )aResolver.GetInterfaceL(
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                    EHuiObjectTypeControl, params->iInt1 );
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                }
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            if (params->iInt2) // not compulsory
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                {
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                parentLayout = ( CHuiLayout* )aResolver.GetInterfaceL(
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                    EHuiObjectTypeLayout, params->iInt2 );
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                }
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            result = CFsScrollbarLayoutHandler::NewL(
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                aResolver, owner, parentLayout );
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            break;
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            }
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        default:
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            User::Leave( KErrNotSupported );
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        }
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    return result;
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    }
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// ---------------------------------------------------------------------------
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// From class MAlfExtensionFactory.
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// Free resources for instance, usually delete this
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// ---------------------------------------------------------------------------
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//
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void TFsScrollbarFactory::Release()
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    {
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    FUNC_LOG;
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    delete this;
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    }
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