/*
* Copyright (c) 2007 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: Controls observers and publishes state changes
*
*/
#ifndef __LOCKAPPOBSERVERLIST_H__
#define __LOCKAPPOBSERVERLIST_H__
// INCLUDES
#include <coecntrl.h>
#include "lockapp.hrh"
// FORWARD DECLARATIONS
class MLockAppStateObserver;
/**
* CLockAppObserverList class publishes lock state changes to all implemented state
* observers. The list owns all childs and it is responsible for deleting them.
*
* @lib lockapp
* @since 5.0
* @author Joona Petrell
* @author Tamas Koteles
*/
class CLockAppObserverList : public CCoeControl
{
public:
/**
* C++ default constructor.
*/
CLockAppObserverList( );
/**
* Destructor.
*/
virtual ~CLockAppObserverList( );
public:
/**
* Add new state observer.
* @param aObserver lock state observer
*/
void AddObserverL( MLockAppStateObserver* aObserver );
/**
* Remove lock state observer.
* @param aObserver lock state observer
*/
void RemoveObserver( MLockAppStateObserver* aObserver );
protected:
/**
* Has to be called by the derived class in the construction.
*/
void BaseConstructL( );
/**
* Informs all observers about the status change.
*
* @param aStatusChange the new lock state.
*/
void PostStatusChangeL( TLockStatus aStatusChange );
/**
* Class that derives from observer list will have first
* notification about the lock status chane.
*
* @param aLockStatus the new lock state.
*/
virtual void HandleLockStatusChangedL( TLockStatus aLockStatus );
private:
/**
* Dynamic list storing observers. Both the list and observers are owned.
* Own.
*/
RPointerArray<MLockAppStateObserver>* iObserverList;
};
#endif // __LOCKAPPOBSERVERLIST_H__
// End of File