/*
    KWin - the KDE window manager
    This file is part of the KDE project.

    SPDX-FileCopyrightText: 2019 Aleix Pol Gonzalez <aleixpol@kde.org>

    SPDX-License-Identifier: GPL-2.0-or-later
*/

#pragma once
#include "input.h"

#include <QHash>
#include <QObject>
#include <QPointF>
#include <QPointer>

namespace KWin
{

class Cursor;
class InputDeviceTabletTool;
class TabletToolV2Interface;
class TabletV2Interface;
class Window;

namespace Decoration
{

class DecoratedWindowImpl;

}

class TabletInputRedirection : public InputDeviceHandler
{
    Q_OBJECT

public:
    explicit TabletInputRedirection(InputRedirection *parent);
    ~TabletInputRedirection() override;

    void tabletPad();
    bool focusUpdatesBlocked() override;

    void tabletToolAxisEvent(const QPointF &pos, qreal pressure, qreal xTilt, qreal yTilt, qreal rotation, qreal distance, bool tipDown, qreal sliderPosition, InputDeviceTabletTool *tool, std::chrono::microseconds time, InputDevice *device);
    void tabletToolProximityEvent(const QPointF &pos, qreal xTilt, qreal yTilt, qreal rotation, qreal distance, bool tipNear, qreal sliderPosition, InputDeviceTabletTool *tool, std::chrono::microseconds time, InputDevice *device);
    void tabletToolTipEvent(const QPointF &pos, qreal pressure, qreal xTilt, qreal yTilt, qreal rotation, qreal distance, bool tipDown, qreal sliderPosition, InputDeviceTabletTool *tool, std::chrono::microseconds time, InputDevice *device);
    void tabletToolAxisEventRelative(const QPointF &delta,
                                     qreal pressure, qreal xTilt, qreal yTilt,
                                     qreal rotation, qreal distance, bool tipDown, qreal sliderPosition, InputDeviceTabletTool *tool, std::chrono::microseconds time, InputDevice *device);
    void tabletToolButtonEvent(uint button, bool isPressed, InputDeviceTabletTool *tool, std::chrono::microseconds time, InputDevice *device);
    void tabletPadButtonEvent(uint button, bool isPressed, quint32 group, quint32 mode, bool isModeSwitch, std::chrono::microseconds time, InputDevice *device);
    void tabletPadStripEvent(int number, qreal position, bool isFinger, quint32 group, quint32 mode, std::chrono::microseconds time, InputDevice *device);
    void tabletPadRingEvent(int number, qreal position, bool isFinger, quint32 group, quint32 mode, std::chrono::microseconds time, InputDevice *device);
    void tabletPadDialEvent(int number, double delta, quint32 group, std::chrono::microseconds time, InputDevice *device);

    bool positionValid() const override
    {
        return !m_lastPosition.isNull();
    }
    void init() override;

    QPointF position() const override
    {
        return m_lastPosition;
    }

    bool haveImplicitGrab() const;

private:
    void cleanupDecoration(Decoration::DecoratedWindowImpl *old,
                           Decoration::DecoratedWindowImpl *now) override;
    void focusUpdate(Window *focusOld, Window *focusNow) override;
    void integrateDevice(InputDevice *device);
    void removeDevice(InputDevice *device);
    void trackNextOutput();
    void ensureTabletTool(InputDeviceTabletTool *tool);
    void setPosition(InputDeviceTabletTool *tool, const QPointF &position);

    QPointF m_lastPosition;
    QMetaObject::Connection m_decorationGeometryConnection;
    QMetaObject::Connection m_decorationDestroyedConnection;
    QHash<InputDeviceTabletTool *, Cursor *> m_cursorByTool;
    bool m_tipDown = false;
    bool m_buttonDown = false;
};

}