diff -r 61bc0f252b2b -r bac7acad7cb3 camerauis/cameraapp/generic/src/CamCallStateAo.cpp
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/camerauis/cameraapp/generic/src/CamCallStateAo.cpp	Wed Sep 01 12:30:54 2010 +0100
@@ -0,0 +1,209 @@
+/*
+* Copyright (c) 2007 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:  Listens for changes to phone call state*
+*/
+
+
+
+// INCLUDE FILES
+#include <e32base.h>
+#include <e32std.h>
+#include <eikenv.h>
+
+#include "CamUtility.h"
+#include "CamCallStateAo.h"
+#include "CamPanic.h"
+
+// EXTERNAL DATA STRUCTURES
+
+// EXTERNAL FUNCTION PROTOTYPES  
+
+// CONSTANTS
+
+// MACROS
+
+// LOCAL CONSTANTS AND MACROS
+
+// MODULE DATA STRUCTURES
+
+// LOCAL FUNCTION PROTOTYPES
+
+// FORWARD DECLARATIONS
+
+// ============================ MEMBER FUNCTIONS ===============================
+#ifdef _DEBUG
+void ExpandStateDebug( TPSCTsyCallState aVal )
+    {
+    switch ( aVal )
+        {   
+    case EPSCTsyCallStateUninitialized:
+        PRINT(_L("Camera    CCamCallStateAo::RunL NEW STATUS => Uninit") );
+        break;
+    case EPSCTsyCallStateNone:
+        PRINT(_L("Camera    CCamCallStateAo::RunL NEW STATUS => NONE") );
+        break;
+    case EPSCTsyCallStateAlerting:
+        PRINT(_L("Camera    CCamCallStateAo::RunL NEW STATUS => ALERTING") );
+        break;
+    case EPSCTsyCallStateRinging:
+        PRINT(_L("Camera    CCamCallStateAo::RunL NEW STATUS => RINGING") );
+        break;
+    case EPSCTsyCallStateDialling:
+        PRINT(_L("Camera    CCamCallStateAo::RunL NEW STATUS => DIALLING") );
+        break;
+    case EPSCTsyCallStateAnswering:
+        PRINT(_L("Camera    CCamCallStateAo::RunL NEW STATUS => ANSWERING") );
+        break;
+    case EPSCTsyCallStateDisconnecting:
+        PRINT(_L("Camera    CCamCallStateAo::RunL NEW STATUS => DISCONNECTING") );
+        break;
+    case EPSCTsyCallStateConnected:
+        PRINT(_L("Camera    CCamCallStateAo::RunL NEW STATUS => CONNECTED") );
+        break;
+    case EPSCTsyCallStateHold:
+        PRINT(_L("Camera    CCamCallStateAo::RunL NEW STATUS => HOLD") );
+        break;
+        }
+    }
+#endif // _DEBUG
+
+
+// -----------------------------------------------------------------------------
+// CCamCallStateAo::CCamCallStateAo
+// C++ default constructor can NOT contain any code, that might leave.
+// -----------------------------------------------------------------------------
+//
+CCamCallStateAo::CCamCallStateAo( MCamCallStateObserver* aObserver ) : CActive( EPriorityStandard )
+    {            
+    PRINT( _L("Camera => CCamCallStateAo::CCamCallStateAo") );
+    __ASSERT_DEBUG( aObserver != NULL, CamPanic(ECamPanicNullImage) );
+    CActiveScheduler::Add( this );
+    
+    iObserver = aObserver;
+    }
+    
+    
+// -----------------------------------------------------------------------------
+// CCamCallStateAo::NewL
+// Two-phased constructor.
+// -----------------------------------------------------------------------------
+//
+CCamCallStateAo* CCamCallStateAo::NewL( MCamCallStateObserver* aObserver )
+    {
+    CCamCallStateAo* self = new( ELeave ) CCamCallStateAo( aObserver );
+    CleanupStack::PushL( self );
+    self->ConstructL();
+    CleanupStack::Pop( self );
+    return self;
+    }
+
+
+// -----------------------------------------------------------------------------
+// CCamSelfTimer::ConstructL
+// Symbian 2nd phase constructor can leave.
+// -----------------------------------------------------------------------------
+//
+void CCamCallStateAo::ConstructL()
+    {
+    PRINT( _L("Camera => CCamCallStateAo::ConstructL") );
+    
+    TInt ret = iProperty.Attach( KPSUidCtsyCallInformation, KCTsyCallState );
+    PRINT1( _L("CCamCallStateAo::ConstructL attaching property ret %d"), ret );
+           
+    if ( ret == KErrNone )
+        {   
+        // Will subscribe to the attribute required 
+        RunL();
+        }
+    else
+        {   
+        // If an error occurred, we can't get call state info which we really need
+        // so leave
+        User::Leave( ret );
+        }
+    
+    PRINT( _L("Camera <= CCamCallStateAo::ConstructL") );
+    }
+
+// -----------------------------------------------------------------------------
+// CCamCallStateAo::~CCamCallStateAo
+// Destructor
+// -----------------------------------------------------------------------------
+//
+CCamCallStateAo::~CCamCallStateAo()
+  {
+  PRINT( _L("Camera => ~CCamCallStateAo") );
+  Cancel();
+  PRINT( _L("Camera <= ~CCamCallStateAo") );
+  }
+
+    
+// -----------------------------------------------------------------------------
+// CCamCallStateAo::DoCancel
+// Cancels an outstanding request
+// -----------------------------------------------------------------------------
+//
+void CCamCallStateAo::DoCancel()
+    {
+    iProperty.Close();
+    }
+    
+
+// -----------------------------------------------------------------------------
+// CCamCallStateAo::RunL
+// Called when a request has completed.  
+// -----------------------------------------------------------------------------
+//
+void CCamCallStateAo::RunL()
+    {
+    PRINT(_L("Camera => CCamCallStateAo::RunL") );
+    iProperty.Subscribe( iStatus );
+    PRINT(_L("Camera    CCamCallStateAo::RunL subscribed") );
+
+    SetActive();
+    PRINT(_L("Camera    CCamCallStateAo::RunL set active") );
+
+    TInt val = KErrNotFound;
+    TInt ret = iProperty.Get( val );
+
+    if ( val != KErrNotFound && ret != KErrNotFound )
+        {
+        TPSCTsyCallState callState = static_cast<TPSCTsyCallState>( val );
+#ifdef _DEBUG
+        ExpandStateDebug( callState );
+#endif
+        PRINT(_L("Camera    CCamCallStateAo::RunL calling callback") );
+        iObserver->CallStateChanged( callState, ret );
+        PRINT(_L("Camera    CCamCallStateAo::RunL returned from callback") );
+        }
+    else
+        {
+        iObserver->CallStateChanged( EPSCTsyCallStateUninitialized, ret );
+        }
+    PRINT(_L("Camera <= CCamCallStateAo::RunL") );
+    }
+    
+
+// -----------------------------------------------------------------------------
+// CCamCallStateAo::RunError
+// Called when an error has occurred.
+// -----------------------------------------------------------------------------
+//
+TInt CCamCallStateAo::RunError( TInt aError )
+    {
+    iObserver->CallStateChanged( EPSCTsyCallStateUninitialized, aError );    
+    return KErrNone;
+    }
+
+//  End of File