mtpfws/mtpfw/dataproviders/dataproviderapi/src/cmtpdataproviderplugin.cpp
author Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
Tue, 02 Feb 2010 01:11:40 +0200
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// Copyright (c) 2006-2009 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:
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//
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#include <ecom/ecom.h>
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#include <mtp/cmtpdataproviderplugin.h>
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#include <mtp/mmtpdataproviderframework.h>
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/**
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MTP data provider plug-in factory method.
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@param aImplementationUid A UID specifying the required data provider 
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interface implementation.
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@param aParams An MTP framework specific parameter block pointer. This pointer
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should simply be passed through to this class's constructor by the derived 
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class.
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@return Pointer to the plug-in instance. Ownership IS transfered.
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@leave KErrNoMemory If the plug-in instance could not be allocated.
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@leave KErrArgument If an invalid aImplementationUid was specified.
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*/
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EXPORT_C CMTPDataProviderPlugin* CMTPDataProviderPlugin::NewL(TUid aImplementationUid, TAny* aParams)
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    {
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    CMTPDataProviderPlugin* self = reinterpret_cast<CMTPDataProviderPlugin*>(
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        REComSession::CreateImplementationL(
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            aImplementationUid,
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            _FOFF(CMTPDataProviderPlugin, iDtorIdKey), 
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            aParams));
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    return self;
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    }
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/**
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Destructor.
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*/
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EXPORT_C CMTPDataProviderPlugin::~CMTPDataProviderPlugin()
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    {
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	REComSession::DestroyedImplementation(iDtorIdKey);
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    }
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/**
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Constructor.
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@param aParams Parameter block pointer.
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@panic USER 0 If the parameter block pointer is 0.
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*/
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EXPORT_C CMTPDataProviderPlugin::CMTPDataProviderPlugin(TAny* aParams) :
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    iFramework(reinterpret_cast<MMTPDataProviderFramework*> (aParams))
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    {
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    __ASSERT_ALWAYS(iFramework, User::Invariant());
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    }
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EXPORT_C MMTPDataProviderFramework& CMTPDataProviderPlugin::Framework() const
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    {
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    return *iFramework;
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    }