// Copyright (c) 1997-2009 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:

//

#ifndef __LAFSHUT_H__

#define __LAFSHUT_H__

#include <e32base.h>

#include <savenotf.h>

#include <shutdownsrv.h>

class CLafShutdownManagerBase : public CBase

/** Base class for a LAF shutdown manager.

A LAF implements a derived class to implement a policy on when to shutdown 

the device. The policy can involve listening for events, timers, etc.

@see LafShutdown 

@publishedPartner 

@released */

	{

protected:

	inline CLafShutdownManagerBase(MShutdownEventObserver& aObserver);

protected:

	/** Kernel's shutdown observer, initialised by the constructor. */

	MShutdownEventObserver& iObserver;

	};

class LafShutdown

/** Device shutdown LAF support.

@publishedPartner 

@released */

	{

public:

	/** Creates a shutdown manager.

	@param aObserver Provides a means for the LAF to notify the kernel of shutdown-related 

	events.

	@return Shutdown manager */

	IMPORT_C static CLafShutdownManagerBase* CreateShutdownManager(MShutdownEventObserver& aObserver);

	/** Tests if the current application should be asked to save when a view change 

	occurs.

	This is called when a view change occurs.

	@return Type of save (including none) that the application should perform

	@see CCoeAppUi::ActivateViewL()

	@see CEikDocument::SaveL() */

	IMPORT_C static MSaveObserver::TSaveType SaveFromViewSwitch();

	/** Tests if the current application should be asked to save when an application 

	switch occurs.

	This is called when an application switch occurs.

	@return Type of save (including none) that the application should perform */

	IMPORT_C static MSaveObserver::TSaveType SaveFromAppSwitch();

	};

inline CLafShutdownManagerBase::CLafShutdownManagerBase(MShutdownEventObserver& aObserver)

	: iObserver(aObserver)

/** Constructor.

@param aObserver Kernel's shutdown observer. The LAF can call this interface 

to notify the kernel of device shutdown, so that the kernel can take appropriate 

power management steps. */

	{}

#endif