diff -r 2eacb6118286 -r ba76fc04e6c2 phoneuis/TelephonyDeviceMode/src/CTelDMCallStateListener.cpp
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/phoneuis/TelephonyDeviceMode/src/CTelDMCallStateListener.cpp	Fri Jun 04 10:19:18 2010 +0100
@@ -0,0 +1,158 @@
+/*
+* Copyright (c) 2006 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 the CTelDMCallStateListener class.
+*
+*/
+
+
+
+// INCLUDE FILES
+#include    "cteldmcallstatelistener.h"
+#include    "mteldmcallstateobserver.h"
+#include    "mteldmaccessory.h"
+
+#include    <ctsydomainpskeys.h>
+
+// MODULE DATA STRUCTURES
+ 
+// ============================ MEMBER FUNCTIONS ===============================
+ 
+// -----------------------------------------------------------------------------
+// CTelDMCallStateListener::NewL
+// 
+// -----------------------------------------------------------------------------
+//  
+CTelDMCallStateListener* CTelDMCallStateListener::NewL() 
+    {
+    
+    CTelDMCallStateListener* self =
+        new ( ELeave ) CTelDMCallStateListener;
+    CleanupStack::PushL( self );
+    self->ConstructL();
+    CleanupStack::Pop( self );
+    return self;
+    }
+
+
+// -----------------------------------------------------------------------------
+// CTelDMCallStateListener::CTelDMCallStateListener
+// 
+// -----------------------------------------------------------------------------
+//
+CTelDMCallStateListener::CTelDMCallStateListener():
+CActive( CActive::EPriorityStandard )
+    {
+    CActiveScheduler::Add( this );
+    }
+
+// -----------------------------------------------------------------------------
+// CTelDMCallStateListener::~CTelDMCallStateListener
+// 
+// -----------------------------------------------------------------------------
+//
+CTelDMCallStateListener::~CTelDMCallStateListener()
+    {
+    Cancel();
+    iProperty.Close();
+    iObserverArray.Reset();
+    iObserverArray.Close();
+    }
+
+// -----------------------------------------------------------------------------
+// CTelDMCallStateListener::ConstructL
+// 
+// -----------------------------------------------------------------------------
+//    
+void CTelDMCallStateListener::ConstructL()
+    {
+    /// Attach to key. Start listening call state changes.
+    iProperty.Attach( KPSUidCtsyCallInformation, KCTsyCallState );
+    IssueRequest();                               
+      
+    }
+ 
+// -----------------------------------------------------------------------------
+// CTelDMCallStateListener::HandleChange
+// 
+// -----------------------------------------------------------------------------
+//
+void CTelDMCallStateListener::HandleChange()
+    {
+    TInt err( KErrNone );
+    iCallState = KErrNone;
+    err = RProperty::Get( KPSUidCtsyCallInformation, 
+                            KCTsyCallState,
+                            iCallState );
+    if ( err == KErrNone )
+        {                   
+        for ( TInt i = 0; i < iObserverArray.Count(); i++ ) 
+            {
+            TRAP_IGNORE( iObserverArray[ i ]->CallStateChangedL(iCallState) );
+            }
+        }
+    } 
+  
+// -----------------------------------------------------------------------------
+// CTelDMCallStateListener::RunL
+// Cannot leave, no RunError implementation
+// -----------------------------------------------------------------------------
+//
+void CTelDMCallStateListener::RunL()
+    { 
+    if ( iStatus.Int() == KErrNone )
+        {
+        HandleChange();    
+        }
+    IssueRequest();
+    }
+
+// -----------------------------------------------------------------------------
+// CTelDMCallStateListener::DoCancel
+// 
+// -----------------------------------------------------------------------------
+//
+void CTelDMCallStateListener::DoCancel()
+    {
+    iProperty.Cancel();
+    }
+
+// -----------------------------------------------------------------------------
+// CTelDMCallStateListener::IssueRequest
+// 
+// -----------------------------------------------------------------------------
+//
+void CTelDMCallStateListener::IssueRequest()
+    {
+    if ( !IsActive() )
+        {        
+        iProperty.Subscribe( iStatus );
+        SetActive();
+        }
+    }
+    
+// -----------------------------------------------------------------------------
+// CTelDMCallStateListener::AddObserver
+// 
+// -----------------------------------------------------------------------------
+void CTelDMCallStateListener::AddObserverL( MTelDMCallStateObserver& 
+                                                            aCallStateObserver )
+    {
+    if ( iObserverArray.Find( &aCallStateObserver ) != KErrNone )
+        {
+        User::LeaveIfError( iObserverArray.Append( &aCallStateObserver ) );
+        }
+    }
+
+ 
+// End of File