/****************************************************************************
**
** Copyright (C) 2008-2010 Nokia Corporation and/or its subsidiary(-ies).
** All rights reserved.
** Contact: Nokia Corporation (developer.feedback@nokia.com)
**
** This file is part of the HbCore module of the UI Extensions for Mobile.
**
** GNU Lesser General Public License Usage
** This file may be used under the terms of the GNU Lesser General Public
** License version 2.1 as published by the Free Software Foundation and
** appearing in the file LICENSE.LGPL included in the packaging of this file.
** Please review the following information to ensure the GNU Lesser General
** Public License version 2.1 requirements will be met:
** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
**
** In addition, as a special exception, Nokia gives you certain additional
** rights.  These rights are described in the Nokia Qt LGPL Exception
** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
**
** If you have questions regarding the use of this file, please contact
** Nokia at developer.feedback@nokia.com.
**
****************************************************************************/

#ifndef HB_INPUT_VIRTUAL_KEYBOARD_H
#define HB_INPUT_VIRTUAL_KEYBOARD_H

#include <QSizeF>

#include <hbinputdef.h>

class QWidget;
class QGraphicsWidget;
class HbVkbHost;

class HB_CORE_EXPORT HbVirtualKeyboard
{
public:
    /*!
    Specifies known virtual keyboard animation types.
    */
    enum HbVkbAnimationType {
        HbVkbAnimOpen,
        HbVkbAnimClose
    };

public:
    virtual ~HbVirtualKeyboard() {}
    virtual HbKeyboardType keyboardType() const {
        return HbKeyboardNone;
    }
    virtual QWidget *asWidget() = 0;
    virtual QGraphicsWidget *asGraphicsWidget() = 0;
    virtual QSizeF preferredKeyboardSize() = 0;

    virtual void aboutToOpen(HbVkbHost *host) = 0;
    virtual void aboutToClose(HbVkbHost *host) = 0;
    virtual void keyboardOpened(HbVkbHost *host) = 0;
    virtual void keyboardClosed(HbVkbHost *host) = 0;
    virtual void keyboardAnimationFrame(HbVkbAnimationType type, qreal x) = 0;
};

#endif // HB_INPUT_VIRTUAL_KEYBOARD_H

// End of file