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/****************************************************************************
**
** Copyright (C) 2016 Klarälvdalens Datakonsult AB, a KDAB Group company, info@kdab.com
** Contact: http://www.qt.io/licensing/
**
** This file is part of the QtWaylandCompositor module of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL3$
** Commercial License Usage
** Licensees holding valid commercial Qt licenses may use this file in
** accordance with the commercial license agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and The Qt Company. For licensing terms
** and conditions see http://www.qt.io/terms-conditions. For further
** information use the contact form at http://www.qt.io/contact-us.
**
** GNU Lesser General Public License Usage
** Alternatively, this file may be used under the terms of the GNU Lesser
** General Public License version 3 as published by the Free Software
** Foundation and appearing in the file LICENSE.LGPLv3 included in the
** packaging of this file. Please review the following information to
** ensure the GNU Lesser General Public License version 3 requirements
** will be met: https://www.gnu.org/licenses/lgpl.html.
**
** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU
** General Public License version 2.0 or later as published by the Free
** Software Foundation and appearing in the file LICENSE.GPL included in
** the packaging of this file. Please review the following information to
** ensure the GNU General Public License version 2.0 requirements will be
** met: http://www.gnu.org/licenses/gpl-2.0.html.
**
** $QT_END_LICENSE$
**
****************************************************************************/

#ifndef QWAYLANDINPUTMETHODCONTROL_H
#define QWAYLANDINPUTMETHODCONTROL_H

#include <QObject>

QT_BEGIN_NAMESPACE

class QWaylandCompositor;
class QWaylandInputMethodControlPrivate;
class QWaylandSurface;
class QInputMethodEvent;

class QWaylandInputMethodControl : public QObject
{
    Q_OBJECT
    Q_DECLARE_PRIVATE(QWaylandInputMethodControl)
    Q_DISABLE_COPY(QWaylandInputMethodControl)

    Q_PROPERTY(bool enabled READ enabled WRITE setEnabled NOTIFY enabledChanged)
public:
    explicit QWaylandInputMethodControl(QWaylandSurface *surface);

#ifndef QT_NO_IM
    QVariant inputMethodQuery(Qt::InputMethodQuery query, QVariant argument) const;
#endif

    void inputMethodEvent(QInputMethodEvent *event);

    bool enabled() const;
    void setEnabled(bool enabled);

    void setSurface(QWaylandSurface *surface);

Q_SIGNALS:
    void enabledChanged(bool enabled);
#ifndef QT_NO_IM
    void updateInputMethod(Qt::InputMethodQueries queries);
#endif

private:
    void defaultInputDeviceChanged();
    void surfaceEnabled(QWaylandSurface *surface);
    void surfaceDisabled(QWaylandSurface *surface);
};

QT_END_NAMESPACE

#endif // QWAYLANDINPUTMETHODCONTROL_H