mousebuttons.cpp

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/*
    SPDX-FileCopyrightText: 2022 David Redondo <kde@david-redondo.de>
 
    SPDX-License-Identifier: GPL-2.0-only OR GPL-3.0-only OR LicenseRef-KDE-Accepted-GPL
*/
 
#include "mousebuttons.h"
#include <QHash>
#include <linux/input-event-codes.h>
 
namespace KWin
{
 
static const QHash<uint32_t, Qt::MouseButton> s_buttonToQtMouseButton = {
    {BTN_LEFT, Qt::LeftButton},
    {BTN_MIDDLE, Qt::MiddleButton},
    {BTN_RIGHT, Qt::RightButton},
    // in QtWayland mapped like that
    {BTN_SIDE, Qt::ExtraButton1},
    {BTN_EXTRA, Qt::ExtraButton2},
    {BTN_FORWARD, Qt::ExtraButton3},
    {BTN_BACK, Qt::ExtraButton4},
    {BTN_TASK, Qt::ExtraButton5},
    {0x118, Qt::ExtraButton6},
    {0x119, Qt::ExtraButton7},
    {0x11a, Qt::ExtraButton8},
    {0x11b, Qt::ExtraButton9},
    {0x11c, Qt::ExtraButton10},
    {0x11d, Qt::ExtraButton11},
    {0x11e, Qt::ExtraButton12},
    {0x11f, Qt::ExtraButton13},
};
 
uint32_t qtMouseButtonToButton(Qt::MouseButton button)
{
    return s_buttonToQtMouseButton.key(button);
}
 
Qt::MouseButton buttonToQtMouseButton(uint32_t button)
{
    // all other values get mapped to ExtraButton24
    // this is actually incorrect but doesn't matter in our usage
    // KWin internally doesn't use these high extra buttons anyway
    // it's only needed for recognizing whether buttons are pressed
    // if multiple buttons are mapped to the value the evaluation whether
    // buttons are pressed is correct and that's all we care about.
    return s_buttonToQtMouseButton.value(button, Qt::ExtraButton24);
}
 
}