/*
* Copyright (c) 2002-2006 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: Notifies the changes in publish and suscripe properties.
*
*/
#ifndef CSATPSCHANGENOTIFIER_H
#define CSATPSCHANGENOTIFIER_H
// INCLUDES
#include <e32base.h>
#include <e32property.h>
#include "MSatSystemStateChangeNotifier.h"
// FORWARD DECLARATION
class MSatSystemStateObserver;
// CLASS DECLARATION
/**
* Notifies the changes in publish and suscripe properties.
*
* @lib SatSystemState
* @since Series 60 3.0
*/
class CSatPSChangeNotifier : public CActive,
public MSatSystemStateChangeNotifier
{
public: // Constructors and destructor
/**
* Two-phased constructor.
* @param aPropertyKey This is the P&S key.
* @param aPropertyValue Value of the P&S key.
* @param aObserver A class that is notified when value changes.
* @param aNotifyValue Defines the value that causes the notification.
*/
static CSatPSChangeNotifier* NewL(
const TUid& aPropertyKey,
TUint aPropertyValue,
MSatSystemStateObserver& aObserver,
TInt aNotifyValue = -1 );
/**
* Destructor.
*/
virtual ~CSatPSChangeNotifier();
public: // Functions from base classes
/**
* From MSatSystemStateChangeNotifier Request a notification of a
* change in system state.
*/
void NotifyChangeL();
/**
* From MSatSystemStateChangeNotifier Cancels the notification request.
*/
void CancelNotify();
/**
* From MSatSystemStateChangeNotifier Gets the current value.
* @return Current value for earlier request.
*/
TInt GetValueInt();
protected: // Functions from base classes
/**
* From CActive
*/
void DoCancel();
/**
* From CActive.
*/
void RunL();
private: // New methods
/**
* Makes the request and activates the active object.
*/
void Activate();
private:
/**
* C++ default constructor.
* @param aPropertyKey This is the P&S key.
* @param aPropertyValue Value of the P&S key.
* @param aObserver A class that is notified when value changes.
* @param aNotifyValue Defines the value that causes the notification.
*/
CSatPSChangeNotifier(
const TUid& aPropertyKey,
TUint aPropertyValue,
MSatSystemStateObserver& aObserver,
TInt aNotifyValue );
private: // Data
// Change observer.
MSatSystemStateObserver& iObserver;
// Publish & suscripe handle.
RProperty iPSClient;
// Publish&Suscripe property key
TUid iPSKey;
// Publish&Suscripe property value
TUint iPSValue;
// Value of the property when observer should be notified
// If this is not set, the changed value is sent to observer
TInt iNotifyValue;
};
#endif // CSATPSCHANGENOTIFIER_H
// End of File