/****************************************************************************

**

** 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_KEYBAORD_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 QSizeF minimizedKeyboardSize() = 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 keyboardMinimized(HbVkbHost *host) = 0;

    virtual void keyboardAnimationFrame(HbVkbAnimationType type, qreal x) = 0;

};

#endif // HB_INPUT_VIRTUAL_KEYBOARD_H

// End of file