usbengines/usbotgwatcher/inc/cusbstatehosthandle.h
author Pat Downey <patd@symbian.org>
Fri, 04 Jun 2010 10:27:39 +0100
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/*
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 * Copyright (c) 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:  Implements concrete state
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 *
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 */
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#ifndef C_USBSTATEHOSTHANDLE_H
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#define C_USBSTATEHOSTHANDLE_H
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#include "cusbstatehostabase.h"
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class CUsbOtgWatcher;
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/**
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 *  problem handling base class
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 *
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 */
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NONSHARABLE_CLASS( CUsbStateHostHandle ) : public CUsbStateHostABase
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    {
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    friend class CtUsbOtgWatcher;
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    friend class CUsbOtgWatcher;
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public:
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    /**
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     * Destructor.
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     */
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    virtual ~CUsbStateHostHandle();
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    /**
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     * Sets id of the issue to be handled
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     * @param aWhat issue id
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     */
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    void SetWhat(TInt aWhat);
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protected:
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    // From message notification observer
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    /**
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     * Message received
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     * @param aMessage message id
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     */
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    virtual void MessageNotificationReceivedL(TInt aMessage);
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    /**
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     * Session request received
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     */
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    virtual void SessionRequestedL();
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    /**
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     * This is called when switched to this state, 
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     * because If all conditions for transition to another state exist, nothing will 
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     * trigger it and transition will not happen. This forces the transition in such cases.
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     *
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     */
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    virtual void JustAdvancedToThisStateL();
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    /**
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     * handles issue
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     */
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    virtual void DoHandleL() = 0;
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    /**
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     * Default constructor
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     * @param aWatcher owner
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     */
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    CUsbStateHostHandle(CUsbOtgWatcher& aWatcher);
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    /**
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     * 2nd phase construction
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     */
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    void ConstructL();
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    // data
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    /**
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     * identifies situation to be handled
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     */
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    TInt iWhat;
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private:
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    };
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#endif //  C_USBSTATEHOSTHANDLE_H