--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/wvuing/IMPSAlwaysOnlinePlugin/src/CPEngAOCallObserver.cpp	Thu Dec 17 08:41:52 2009 +0200
@@ -0,0 +1,170 @@
+/*
+* Copyright (c) 2004 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:  Handles the always online functionality for the presence
+*				 engine
+*
+*/
+
+
+
+// INCLUDE FILES
+#include "MPEngAOCallObserver.h"
+#include "CPEngAOCallObserver.h"
+#include "IMPSCommonUiDebugPrint.h"
+#include "CIMPSSharedDataFactory.h"
+#include "IMPSSystemNotifyDefs.h"
+
+#include <flogger.h>
+#include <e32std.h>
+
+
+// LOCAL CONSTANTS AND MACROS
+
+// ============================ MEMBER FUNCTIONS ===============================
+
+// -----------------------------------------------------------------------------
+// CPEngAOCallObserver::CPEngAOCallObserver
+// C++ default constructor can NOT contain any code, that
+// might leave.
+// -----------------------------------------------------------------------------
+//
+CPEngAOCallObserver::CPEngAOCallObserver() :
+        iObserver( NULL )
+    {
+    }
+
+// -----------------------------------------------------------------------------
+// CPEngAOCallObserver::ConstructL
+// Symbian 2nd phase constructor can leave.
+// -----------------------------------------------------------------------------
+//
+void CPEngAOCallObserver::ConstructL()
+    {
+    iSystemNotifier =
+        CIMPSSharedDataFactory::CreateSystemNotifyHandlerL( *this,
+                                                            KIMPSSystemUidCurrentCall );
+    }
+
+// -----------------------------------------------------------------------------
+// CPEngAOCallObserver::NewL
+// Two-phased constructor.
+// -----------------------------------------------------------------------------
+//
+CPEngAOCallObserver* CPEngAOCallObserver::NewL()
+    {
+    CPEngAOCallObserver* self = new( ELeave ) CPEngAOCallObserver;
+
+    CleanupStack::PushL( self );
+    self->ConstructL();
+    CleanupStack::Pop( self );
+
+    return self;
+    }
+
+// Destructor
+CPEngAOCallObserver::~CPEngAOCallObserver()
+    {
+    delete iSystemNotifier;
+    }
+
+// ---------------------------------------------------------
+// CPEngAOCallObserver::HandleSystemNotifierEventL
+//
+// ---------------------------------------------------------
+//
+void CPEngAOCallObserver::HandleSystemNotifierEventL( TUid /*aKey*/, TInt aValue )
+    {
+    IMPSCUI_DP( D_IMPSCUI_LIT(
+                    "CPEngAOCallObserver::HandleSystemNotifierEventL  aValue [%d]" ), aValue );
+
+    // the call ended, inform the observer
+    if ( aValue != EIMPSSystemCallNone )
+        {
+        // something else happened, inform that the call didn't end just yet
+        HandleCallEndedL( EFalse );
+
+        }
+    else
+        {
+        // Stop listening call state changes
+        iSystemNotifier->UnSubscribe();
+
+        HandleCallEndedL( ETrue );
+        }
+    }
+
+// ---------------------------------------------------------
+// CPEngAOCallObserver::CallActive
+//
+// ---------------------------------------------------------
+//
+TBool CPEngAOCallObserver::CallActive( MPEngAOCallObserver*
+// Compile warning removal.
+#ifndef _DEBUG
+                                       aObserver
+#endif
+                                     )
+    {
+#ifdef _DEBUG
+    return EFalse;
+#else // #else used instead of #endif, to get rvct compile warning removed
+
+    // get the current state of the call from system notifier
+    TInt err( KErrNone );
+    TInt value( EIMPSSystemCallNone );
+
+    err = iSystemNotifier->GetIntKey( value );
+    IMPSCUI_DP( D_IMPSCUI_LIT( "CPEngAOCallObserver::CallActive state [%d]" ), value );
+
+    // no active call or an error in GetState -> return
+    if ( ( value <= EIMPSSystemCallNone && ( err == KErrNone ) ) ||
+         ( err != KErrNone ) )
+        {
+        return EFalse;
+        }
+
+    // start observing for call status change
+    iObserver = aObserver;
+
+    iSystemNotifier->Subscribe();
+
+    // and tell the calling object that the call is on and we are
+    // observing it
+    return ETrue;
+#endif
+    }
+
+// ---------------------------------------------------------
+// CPEngAOCallObserver::HandleCallEndedL
+//
+// ---------------------------------------------------------
+//
+void CPEngAOCallObserver::HandleCallEndedL( TBool aEnded )
+    {
+    if ( iObserver )
+        {
+        iObserver->HandleCallEndedL( aEnded );
+        }
+    }
+
+// ---------------------------------------------------------
+// CPEngAOCallObserver::StopObserving
+//
+// ---------------------------------------------------------
+//
+void CPEngAOCallObserver::StopObserving()
+    {
+    iSystemNotifier->UnSubscribe();
+    }
+//  End of File