phoneplugins/csplugin/inc/cspetelconferencestatusmonitor.h
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/*
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* Copyright (c) 2007-2008 Nokia Corporation and/or its subsidiary(-ies). 
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* All rights reserved.
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* This component and the accompanying materials are made available
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* under the terms of "Eclipse Public License v1.0"
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* which accompanies this distribution, and is available
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* at the URL "http://www.eclipse.org/legal/epl-v10.html".
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*
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* Initial Contributors:
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* Nokia Corporation - initial contribution.
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*
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* Contributors:
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*
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* Description:  Declarations for class CSPEtelConferenceStatusMonitor
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*
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*/
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#ifndef CSPETELCONFERENCECALLSTATUSMONITOR_H
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#define CSPETELCONFERENCECALLSTATUSMONITOR_H
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#include <e32base.h>
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#include <etelmm.h>
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class MCSPConferenceStatusObserver; 
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/**
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* Monitors single ETel RMobileConferenceCall for conference call statuss.
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*
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*  This monitor is applied only for listening incoming calls, i.e.
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*  line capabilites are not monitored.
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*
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*  @lib csplugin.dll
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*  @since S60 v3.2
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*/
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NONSHARABLE_CLASS(CSPEtelConferenceStatusMonitor): public CActive
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    {
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    public: //Constructors and descructor
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        /**
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        * Two-phased constructing for the monitor.
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        *
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        * @param aObserver the observer for getting notification
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        * @param aPhone the line to monitor
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        */
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        static CSPEtelConferenceStatusMonitor* NewL( 
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                MCSPConferenceStatusObserver& aObserver,
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                RMobileConferenceCall& aPhone );
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        /**
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        * C++ default destructor
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        */
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        virtual ~CSPEtelConferenceStatusMonitor( );
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        /**
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        * Start monitoring call statuss
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        * @since S60 3.2
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        */
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        void StartMonitoring();
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    protected: // From CActive
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        /**
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        * From CActive
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        * RunL
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        * @since S60 3.2
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        */
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        void RunL();
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        /**
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        * From CActive
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        * Cancels the monitor
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        * @since S60 3.2
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        */
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        void DoCancel();
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    private:
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        /**
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        * C++ default constructor
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        * @param aObserver the observer for status change (incoming call)
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        * @param aPhone the line associated with the call
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        */
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        CSPEtelConferenceStatusMonitor( MCSPConferenceStatusObserver& aObserver,
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                            RMobileConferenceCall& aPhone );
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        /**
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        * Constructs the monitor in the second phase.
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        */
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        void ConstructL();
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    private: // data
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        /**
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        * Owner.
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        */
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        MCSPConferenceStatusObserver& iOwner;
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        /**
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        * Phone that is being observed for incoming call.
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        */
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        RMobileConferenceCall& iCall;
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        /**
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        * Status received.
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        */ 
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        RMobileConferenceCall::TMobileConferenceStatus iConferenceStatus;
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        /**
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        * Pointer for recovering from a situation where CCE releases call 
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        * during observer-call sequence.
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        */
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        TBool* iDestrPtr;
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    };
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#endif // CSPETELCONFERENCECALLSTATUSMONITOR_H