psln/Src/PslnPropertySubscriber.cpp
author Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
Tue, 02 Feb 2010 01:00:49 +0200
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/*
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* Copyright (c) 2005-2006 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:  Starts subscribing PubSub key.
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*
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*/
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// INCLUDE FILES
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#include    "PslnPropertySubscriber.h"
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// ============================ MEMBER FUNCTIONS ===============================
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// -----------------------------------------------------------------------------
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// C++ constructor can NOT contain any code, that might leave.
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// 
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// NOTE that callback method is NOT allowed to leave.
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// -----------------------------------------------------------------------------
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//
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CPslnPropertySubscriber::CPslnPropertySubscriber(
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    TCallBack aCallBack, RProperty& aProperty )
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    : CActive( CActive::EPriorityStandard ), iCallBack( aCallBack ), 
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    iProperty( aProperty )
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    {
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    CActiveScheduler::Add( this );
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    }
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// Destructor
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CPslnPropertySubscriber::~CPslnPropertySubscriber()
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    {
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    Cancel();    
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    }
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// -----------------------------------------------------------------------------
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// CPslnPropertySubscriber::Subscribe
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// -----------------------------------------------------------------------------
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//
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void CPslnPropertySubscriber::Subscribe()
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    {
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    if ( !IsActive() )
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        {
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        iProperty.Subscribe( iStatus );
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        SetActive();
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        }
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    }
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// -----------------------------------------------------------------------------
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// CPslnPropertySubscriber::RunL
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// -----------------------------------------------------------------------------
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//
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void CPslnPropertySubscriber::RunL()
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    {
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    if ( iStatus.Int() == KErrNone )
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        {
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        Subscribe();
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        iCallBack.CallBack();
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        }
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    }
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// -----------------------------------------------------------------------------
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// CPslnPropertySubscriber::DoCancel
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// -----------------------------------------------------------------------------
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//
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void CPslnPropertySubscriber::DoCancel()
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    {
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    iProperty.Cancel();
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    }
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//  End of File