/****************************************************************************
**
** Copyright (C) 2016 The Qt Company Ltd.
** Contact: https://www.qt.io/licensing/
**
** This file is part of the plugins of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL$
** 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 https://www.qt.io/terms-conditions. For further
** information use the contact form at https://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.LGPL3 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-3.0.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 (at your option) the GNU General
** Public license version 3 or any later version approved by the KDE Free
** Qt Foundation. The licenses are as published by the Free Software
** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3
** included in the packaging of this file. Please review the following
** information to ensure the GNU General Public License requirements will
** be met: https://www.gnu.org/licenses/gpl-2.0.html and
** https://www.gnu.org/licenses/gpl-3.0.html.
**
** $QT_END_LICENSE$
**
****************************************************************************/

#ifndef QWAYLANDTOUCH_H
#define QWAYLANDTOUCH_H

//
//  W A R N I N G
//  -------------
//
// This file is not part of the Qt API.  It exists purely as an
// implementation detail.  This header file may change from version to
// version without notice, or even be removed.
//
// We mean it.
//

#include <qpa/qwindowsysteminterface.h>

#include <QtWaylandClient/private/qwayland-touch-extension.h>
#include <QtWaylandClient/qtwaylandclientglobal.h>

QT_BEGIN_NAMESPACE

namespace QtWaylandClient {

class QWaylandDisplay;
class QWaylandInputDevice;

class Q_WAYLAND_CLIENT_EXPORT QWaylandTouchExtension : public QtWayland::qt_touch_extension
{
public:
    QWaylandTouchExtension(QWaylandDisplay *display, uint32_t id);

    void touchCanceled();

private:
    void registerDevice(int caps);

    QWaylandDisplay *mDisplay = nullptr;

    void touch_extension_touch(uint32_t time,
                               uint32_t id,
                               uint32_t state,
                               int32_t x,
                               int32_t y,
                               int32_t normalized_x,
                               int32_t normalized_y,
                               int32_t width,
                               int32_t height,
                               uint32_t pressure,
                               int32_t velocity_x,
                               int32_t velocity_y,
                               uint32_t flags,
                               struct wl_array *rawdata) override;
    void touch_extension_configure(uint32_t flags) override;

    void sendTouchEvent();

    QList<QWindowSystemInterface::TouchPoint> mTouchPoints;
    QList<QWindowSystemInterface::TouchPoint> mPrevTouchPoints;
    QTouchDevice *mTouchDevice = nullptr;
    uint32_t mTimestamp;
    int mPointsLeft;
    uint32_t mFlags;
    int mMouseSourceId;
    QPointF mLastMouseLocal;
    QPointF mLastMouseGlobal;
    QWindow *mTargetWindow = nullptr;
    QWaylandInputDevice *mInputDevice = nullptr;
};

}

QT_END_NAMESPACE

#endif // QWAYLANDTOUCH_H