diff -r 63be7eb3fc78 -r f28ada11abbf wlanutilities/wlansniffer/model/src/wsfscreensaverwatcher.cpp
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/wlanutilities/wlansniffer/model/src/wsfscreensaverwatcher.cpp	Wed Sep 01 12:20:32 2010 +0100
@@ -0,0 +1,140 @@
+/*
+* Copyright (c) 2007-2008 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:  Implementation of CWsfScreenSaverWatcher
+*
+*/
+
+
+//  EXTERNAL INCLUDES
+#include <e32cmn.h>
+#include <ScreensaverInternalPSKeys.h>
+
+//  CLASS HEADER
+#include "wsfscreensaverwatcher.h"
+
+//  INTERNAL INCLUDES
+#include "wsfscreensaverstateobserver.h"
+
+
+
+// ----------------------------------------------------------------------------
+// CWsfScreenSaverWatcher::NewL
+// ----------------------------------------------------------------------------
+//
+CWsfScreenSaverWatcher* CWsfScreenSaverWatcher::NewL( 
+                                      MWsfScreenSaverStateObserver& aObserver )
+    {
+    CWsfScreenSaverWatcher* thisPtr = NewLC( aObserver );
+    CleanupStack::Pop( thisPtr );
+    return thisPtr;
+    }
+
+
+// ----------------------------------------------------------------------------
+// CWsfScreenSaverWatcher::NewLC
+// ----------------------------------------------------------------------------
+//
+CWsfScreenSaverWatcher* CWsfScreenSaverWatcher::NewLC( 
+                                      MWsfScreenSaverStateObserver& aObserver )
+    {
+    CWsfScreenSaverWatcher* thisPtr = new ( ELeave ) CWsfScreenSaverWatcher( 
+                                                                   aObserver );
+    CleanupStack::PushL( thisPtr );
+    thisPtr->ConstructL();
+    return thisPtr;
+    }
+
+
+// ----------------------------------------------------------------------------
+// CWsfScreenSaverWatcher::~CWsfScreenSaverWatcher
+// ----------------------------------------------------------------------------
+//
+CWsfScreenSaverWatcher::~CWsfScreenSaverWatcher()
+    {
+    Cancel();
+    iProperty.Close();
+    }
+
+
+// ----------------------------------------------------------------------------
+// CWsfScreenSaverWatcher::CWsfScreenSaverWatcher
+// ----------------------------------------------------------------------------
+//
+CWsfScreenSaverWatcher::CWsfScreenSaverWatcher( 
+                                     MWsfScreenSaverStateObserver& aObserver ): 
+    CActive( EPriorityStandard ),
+    iObserver( &aObserver )
+    {
+    }
+
+
+// ----------------------------------------------------------------------------
+// CWsfScreenSaverWatcher::ConstructL
+// ----------------------------------------------------------------------------
+//
+void CWsfScreenSaverWatcher::ConstructL()
+    {
+    User::LeaveIfError( iProperty.Attach( KPSUidScreenSaver, 
+                                          KScreenSaverOn ) );
+    CActiveScheduler::Add( this );
+    }
+
+
+// ----------------------------------------------------------------------------
+// CWsfScreenSaverWatcher::RunL
+// ----------------------------------------------------------------------------
+//
+void CWsfScreenSaverWatcher::RunL()
+    {
+    // read the value of property
+    TBool screenSaverActive( EFalse );
+    iProperty.Get( screenSaverActive );
+    iObserver->ScreenSaverStatusChangedL( screenSaverActive );
+    // reissue the request
+    StartStatusScanning();
+    }
+
+
+// ----------------------------------------------------------------------------
+// CWsfScreenSaverWatcher::DoCancel
+// ----------------------------------------------------------------------------
+//
+void CWsfScreenSaverWatcher::DoCancel()
+    {
+    iProperty.Cancel();
+    }
+
+
+// ----------------------------------------------------------------------------
+// CWsfScreenSaverWatcher::StartStatusScanning
+// ----------------------------------------------------------------------------
+//
+void CWsfScreenSaverWatcher::StartStatusScanning()
+    {
+    iProperty.Subscribe( iStatus );
+    SetActive();
+    }
+
+
+// ----------------------------------------------------------------------------
+// CWsfScreenSaverWatcher::RunError
+// ----------------------------------------------------------------------------
+//
+TInt CWsfScreenSaverWatcher::RunError( TInt /*aError*/ )
+    {
+    // issue the request so we will continue to receive 
+    // state change notifications
+    StartStatusScanning();
+    return KErrNone;
+    }