--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/qtinternetradio/irqsystemeventhandler/inc/irsystemeventobserverinterface.h	Thu May 27 12:46:34 2010 +0300
@@ -0,0 +1,61 @@
+/*
+* 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