/*
* 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: Publish & Subscribe key observer
*
*/
#ifndef __LOCKAPPPUBSUBOBSERVER_H__
#define __LOCKAPPPUBSUBOBSERVER_H__
// INCLUDES
#include <w32std.h>
#include <e32svr.h>
#include <e32property.h>
#include "lockappobserverinterface.h"
/**
* CLockAppPubSubObserver class implements a Publish & Subscribe key observer.
* It can be used to monitor and also to set a PubSub key.
*
* @lib lockapp
* @since 5.0
* @author Tamas Koteles
*/
class CLockAppPubSubObserver : public CActive
{
public:
/**
* Two-phased constructor.
*
* @param aObserver pointer to observer
* @param aPubSubUid publish & subscribe Uid
* @param aKeyId publish & subscribe key id
* @return the instance just created.
*/
static CLockAppPubSubObserver* NewL( MLockAppObserverInterface* aObserver, TUid aPubSubUid,
TUint32 aKeyId );
/**
* Destructor.
*/
~CLockAppPubSubObserver( );
/**
* Start obsering PubSub key
*/
TInt Start( );
/**
* Stop observing PubSub key
*/
void Stop( );
/**
* Get key value from P&S.
*/
TInt GetKeyValue( TInt& aValue );
/**
* Set key value to P&S.
*/
TInt SetKeyValue( TInt aValue );
protected:
/**
* C++ default constructor.
*
* @param aObserver observer
* @param aPubSubUid publish & subscribe Uid
* @param aKeyId key id
*/
CLockAppPubSubObserver( MLockAppObserverInterface* aObserver, TUid aPubSubUid,
TUint32 aKeyId );
/**
* Symbian OS constructor.
*/
void ConstructL( );
private:
void RunL( );
void DoCancel( );
protected:
/**
* Observer's callback interface. Not owned.
*/
MLockAppObserverInterface* iObserver;
/**
* Access to Publish & Subscribe.
*/
RProperty iProperty;
/**
* Publish & Subscribe Uid.
*/
TUid iPubSubUid;
/**
* Publish & Subscribe key Id.
*/
TUint32 iKeyId;
/**
* Publish & Subscribe key's value.
*/
TInt iValue;
};
#endif // __LOCKAPPPUBSUBOBSERVER_H__
// END OF FILE