/*

 * Copyright (c) 2005-2009 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:  Declares USB UI Queries notifier.

 *

 */

#ifndef USBUINQUERIESNOTIFIER_H

#define USBUINQUERIESNOTIFIER_H

// INCLUDES

#include <hb/hbwidgets/hbdevicemessageboxsymbian.h>

#include "usbnotifier.h"      // Base class

// CLASS DECLARATION

/**

 *  This class is used to show USB query dialogs.

 *

 *  @lib 

 *  @since S60 3.0

 */

NONSHARABLE_CLASS(CUSBUIQueriesNotifier) : public CUSBUINotifierBase,

                                           public MHbDeviceMessageBoxObserver

    {

public:

    // Constructors and destructor

    /**

     * Two-phased constructor.

     */

    static CUSBUIQueriesNotifier* NewL();

    /**

     * Destructor.

     */

    virtual ~CUSBUIQueriesNotifier();

    /**

     * Call back function to observe device message box closing.

     * @param aMessageBox Pointer to the closing message box instance.

     * @param aButton Button that was pressed.

     */

    void MessageBoxClosed(const CHbDeviceMessageBoxSymbian* aMessageBox,

            CHbDeviceMessageBoxSymbian::TButtonId aButton);

private:

    // Functions from base class

    /**

     * From CUSBUINotifierBase Called when a notifier is first loaded.        

     * @param None.

     * @return A structure containing priority and channel info.

     */

    TNotifierInfo RegisterL();

    /**

     * From CUSBUINotifierBase The notifier has been deactivated 

     * so resources can be freed and outstanding messages completed.

     * @param None.

     * @return None.

     */

    void Cancel();

    /**

     * From CUSBUINotifierBase Used in asynchronous notifier launch to 

     * store received parameters into members variables and 

     * make needed initializations.

     * @param aBuffer A buffer containing received parameters

     * @param aReplySlot A reply slot.

     * @param aMessage Should be completed when the notifier is deactivated.

     * @return None.

     */

    void StartDialogL(const TDesC8& aBuffer, TInt aReplySlot,

            const RMessagePtr2& aMessage);

private:

    /**

     *  C++ default constructor.

     */

    CUSBUIQueriesNotifier();

private:

    // Data

    /**

    * owned

    */

    CHbDeviceMessageBoxSymbian*  iUSBQueryDlg;

    TUSBUIQueries iQueryType; // To store the type of the query

    };

#endif // USBUINQUERIESNOTIFIER_H