--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/convergedconnectionhandler/cchclientapi/cchuinotif/inc/cchuicallstatelistener.h	Wed Sep 01 12:29:57 2010 +0100
@@ -0,0 +1,111 @@
+/*
+* Copyright (c) 2009 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: CCH UI Call State Listener
+*
+*/
+
+#ifndef C_CCHUICALLSTATELISTENER_H
+#define C_CCHUICALLSTATELISTENER_H
+
+
+#include <e32property.h>
+#include <e32base.h>
+
+class MCchUiCallStateObserver;
+
+
+/**
+*  Class for listening call state changes.
+ *
+ *  @code
+ *    CCchUiCallStateListener listener =
+ *        CCchUiCallStateListener::NewL( *this );
+ *  @endcode
+ *
+ *  @lib cchuinotif.lib
+ *  @since S60 v5.0
+ */
+NONSHARABLE_CLASS( CCchUiCallStateListener ) : public CActive
+    {
+
+public:
+
+    /**
+     * Two-phased constructor.
+     * @param aObserver callback observer
+     */
+    static CCchUiCallStateListener* NewL( MCchUiCallStateObserver& aObserver );
+
+    /**
+     * Destructor.
+     */
+    virtual ~CCchUiCallStateListener();
+
+protected:
+
+// from base class CActive
+
+    /**
+     * From CActive
+     * See base class.
+     */
+    void RunL();
+
+    /**
+     * From CActive
+     * See base class.
+     */
+    void DoCancel();
+
+private:
+
+    CCchUiCallStateListener( MCchUiCallStateObserver& aObserver );
+
+    /**
+     * Handle state change.
+     *
+     * @since S60 v5.0
+     */
+    void HandleChange();
+
+    /**
+     * Start listening call state changes.
+     *
+     * @since S60 v5.0
+     */
+    void IssueRequest();
+
+private: // data
+
+    /*
+     * Property handle used to get property value
+     */
+    RProperty iProperty;
+
+    /**
+     * Call state
+     */
+    TInt iCallState;
+
+    /**
+     * CCH UI call state observer for callbacks
+     */
+    MCchUiCallStateObserver& iObserver;
+    
+    // For unit testing
+    friend class t_cchuicallstatelistener;
+    
+    };
+
+#endif // C_CCHUICALLSTATELISTENER_H