diff -r 8ee96d21d9bf -r 7e0eff37aedb gssettingsuis/Gs/GSFramework/src/GSEComNotifier.cpp
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/gssettingsuis/Gs/GSFramework/src/GSEComNotifier.cpp	Wed Sep 01 12:20:44 2010 +0100
@@ -0,0 +1,172 @@
+/*
+* Copyright (c) 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: 
+*
+*/
+
+
+#include <gsplugininterface.h>
+#include "GSEComNotifier.h"
+#include "GsLogger.h"
+
+// ======== MEMBER FUNCTIONS ========
+
+
+// ---------------------------------------------------------------------------
+//
+// ---------------------------------------------------------------------------
+//
+CGSEComNotifier::CGSEComNotifier( MGSEComObserver* aObserver,
+                                  RImplInfoPtrArray aImplInfo )
+    : CActive( EPriorityStandard ),
+      iObserver( aObserver ),
+      iOriginalImplInfo( aImplInfo )
+    {
+    CActiveScheduler::Add( this );
+    }
+
+
+// ---------------------------------------------------------------------------
+//
+// ---------------------------------------------------------------------------
+//
+void CGSEComNotifier::ConstructL()
+    {
+    iEComSession = REComSession::OpenL();
+    IssueRequest();
+    }
+
+
+// ---------------------------------------------------------------------------
+//
+// ---------------------------------------------------------------------------
+//
+EXPORT_C CGSEComNotifier* CGSEComNotifier::NewL( MGSEComObserver* aObserver,
+                                                 RImplInfoPtrArray aImplInfo )
+    {
+    CGSEComNotifier* self = new( ELeave ) CGSEComNotifier(
+        aObserver,
+        aImplInfo );
+
+    CleanupStack::PushL( self );
+    self->ConstructL();
+    CleanupStack::Pop( self );
+    return self;
+    }
+
+
+// ---------------------------------------------------------------------------
+//
+// ---------------------------------------------------------------------------
+//
+EXPORT_C CGSEComNotifier::~CGSEComNotifier()
+    {
+    Cancel();
+    iEComSession.Close();
+    }
+
+
+// ---------------------------------------------------------------------------
+// See base class.
+// ---------------------------------------------------------------------------
+//
+void CGSEComNotifier::DoCancel()
+    {
+    iEComSession.CancelNotifyOnChange( iStatus );
+    }
+
+
+// ---------------------------------------------------------------------------
+// See base class.
+// ---------------------------------------------------------------------------
+//
+void CGSEComNotifier::RunL()
+    {
+    __GSLOGSTRING1( "[CGSEComNotifier::RunL] iStatus:%d", iStatus );
+
+    if( PluginCountDeltaL() < 0 )
+        {
+        iObserver->HandleEComEvent( MGSEComObserver::EPluginRemoved );
+        }
+
+    IssueRequest();
+
+    __GSLOGSTRING1( "[CGSEComNotifier::RunL] iStatus:%d", iStatus );
+    }
+
+
+// ---------------------------------------------------------------------------
+// See base class.
+// ---------------------------------------------------------------------------
+//
+TInt CGSEComNotifier::RunError( TInt aError )
+    {
+    __GSLOGSTRING2(
+        "[CGSEComNotifier::RunError] aError:%d iStatus:%d",
+        aError, iStatus );
+
+    // Special case: Application can throw KLeaveExit basically anytime so we
+    // have to forward it upwards to app framework.
+    if( aError == KLeaveExit )
+        {
+        return aError;
+        }
+    return KErrNone;
+    }
+
+
+// ---------------------------------------------------------------------------
+//
+// ---------------------------------------------------------------------------
+//
+void CGSEComNotifier::IssueRequest()
+    {
+    if( !IsActive() )
+        {
+        // NotifyOnChange is single shot.
+        iEComSession.NotifyOnChange( iStatus );
+        SetActive();
+        }
+    }
+
+
+// ---------------------------------------------------------------------------
+//
+// ---------------------------------------------------------------------------
+//
+TInt CGSEComNotifier::PluginCountDeltaL()
+    {
+    // Owned
+    RImplInfoPtrArray newImplInfo;
+
+    REComSession::ListImplementationsL(
+        KGSPluginInterfaceUid,
+        newImplInfo );
+
+    TInt oldInfoCount = iOriginalImplInfo.Count();
+    TInt newInfoCount = newImplInfo.Count();
+
+    __GSLOGSTRING2(
+        "[CGSEComNotifier::PluginCountDeltaL] iOriginalImplInfo:%d newImplInfo:%d",
+        oldInfoCount, newInfoCount );
+
+    newImplInfo.ResetAndDestroy();
+    newImplInfo.Close();
+
+    // Count the delta between old and current infos:
+    return newInfoCount - oldInfoCount;
+    }
+
+
+// End of File