uifw/AvKon/AknExtendedFader/src/AknExtendedFaderStartupWatcher.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) 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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*/
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#include <e32base.h>
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#include "AknExtendedFaderStartupWatcher.h"
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CAknExtendedFaderStartupWatcher::CAknExtendedFaderStartupWatcher(MAknExtendedFaderStartupObserver& aObserver)
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: CActive(EPriorityStandard), iObserver(aObserver)
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	{
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	}
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CAknExtendedFaderStartupWatcher::~CAknExtendedFaderStartupWatcher()
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	{
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	// Cancel active object notifications
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	Cancel();
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	}
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CAknExtendedFaderStartupWatcher* CAknExtendedFaderStartupWatcher::NewL(MAknExtendedFaderStartupObserver& aObserver)
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	{
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	CAknExtendedFaderStartupWatcher* self = new (ELeave) CAknExtendedFaderStartupWatcher(aObserver);
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	CleanupStack::PushL(self);
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	self->ConstructL();
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	CleanupStack::Pop(); // self
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	return self;
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	}
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void CAknExtendedFaderStartupWatcher::ConstructL()
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	{
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	// Add AO to active scheduler
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	CActiveScheduler::Add(this);
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	// Attach & subscribe to startup property
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	User::LeaveIfError(iProperty.Attach(KPSUidStartup, KPSGlobalSystemState));
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	iProperty.Subscribe(iStatus);
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	// Set AO active
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	SetActive();
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	// Get current value (if possible) and notify observer
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	TInt value;
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	if(iProperty.Get(value)==KErrNone)
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		{
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		iObserver.GlobalSystemStateChangedL(static_cast<TPSGlobalSystemState>(value));
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		}
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	}
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void CAknExtendedFaderStartupWatcher::RunL()
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	{
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	if(iStatus==KErrNone)
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		{
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		TInt value;
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		if(iProperty.Get(value)==KErrNone)
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			{
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			iObserver.GlobalSystemStateChangedL(static_cast<TPSGlobalSystemState>(value));
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			}
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		}
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	// Resubscribe
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	iProperty.Subscribe(iStatus);
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	SetActive(); 
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	}
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void CAknExtendedFaderStartupWatcher::DoCancel()
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	{
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	iProperty.Cancel();
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	}