/*

* Copyright (c) 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 IRSYSTEMEVENTOBSERVERINTERFACE_H

#define IRSYSTEMEVENTOBSERVERINTERFACE_H

#include <qglobal.h>

class MIRAlarmObserverInterface

{

public:

    virtual void alarmStarted()= 0;    

    virtual void alarmStopped() = 0;

};

class MIRDiskSpaceObserverInterface

{

public:

    /**

     * notifyLowDiskSpace Called when the observed disk's free disk space is

     * less than the critical level.

     */

    virtual void notifyLowDiskSpace(qint64 aCriticalLevel) = 0;

};

class MIRPropertyObserverInterface

{

public:

    virtual void callIsActivated() = 0;

    virtual void callIsDeactivated() = 0;    

    //this function is a general error call back, no matter which propertyChanged, 

    //we will call this to notify the upper layer. 

    virtual void errorCallback(int aError) = 0;

};

class MIRHeadsetObserverInterface

{

public:

    virtual void headsetIsConnected() = 0;

    virtual void headsetIsDisconnected() = 0;

};

#endif // IRSYSTEMEVENTOBSERVERINTERFACE_H