7fffe99328
Due to being a compositor, kwin has to conform to some certain interfaces. It means a lot of virtual functions and function tables to integrate with C APIs. Naturally, we not always want to use every argument in such functions. Since we get -Wunused-parameter from -Wall, we have to plumb those unused arguments in order to suppress compiler warnings at the moment. However, I don't think that extra work is worth it. We cannot change or alter prototypes in any way to fix the warning the desired way. Q_UNUSED and similar macros are not good indicators of whether an argument is used too, we tend to overlook putting or removing those macros. I've also noticed that Q_UNUSED are not used to guide us with the removal no longer needed parameters. Therefore, I think it's worth adding -Wno-unused-parameter compiler option to stop the compiler producing warnings about unused parameters. It changes nothing except that we don't need to put Q_UNUSED anymore, which can be really cumbersome sometimes. Note that it doesn't affect unused variables, you'll still get a -Wunused-variable compiler warning if a variable is unused.
106 lines
2.6 KiB
C++
106 lines
2.6 KiB
C++
/*
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KWin - the KDE window manager
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This file is part of the KDE project.
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SPDX-FileCopyrightText: 2015 Martin Gräßlin <mgraesslin@kde.org>
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SPDX-License-Identifier: GPL-2.0-or-later
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*/
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#include "dpmsinputeventfilter.h"
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#include "core/output.h"
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#include "main.h"
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#include "wayland/seat_interface.h"
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#include "wayland_server.h"
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#include "workspace.h"
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#include <QGuiApplication>
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#include <QKeyEvent>
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namespace KWin
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{
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DpmsInputEventFilter::DpmsInputEventFilter()
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: InputEventFilter()
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{
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KSharedConfig::Ptr kwinSettings = kwinApp()->config();
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m_enableDoubleTap = kwinSettings->group("Wayland").readEntry<bool>("DoubleTapWakeup", true);
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}
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DpmsInputEventFilter::~DpmsInputEventFilter() = default;
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bool DpmsInputEventFilter::pointerEvent(QMouseEvent *event, quint32 nativeButton)
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{
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notify();
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return true;
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}
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bool DpmsInputEventFilter::wheelEvent(QWheelEvent *event)
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{
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notify();
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return true;
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}
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bool DpmsInputEventFilter::keyEvent(QKeyEvent *event)
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{
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if (event->type() == QKeyEvent::KeyPress) {
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notify();
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}
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return true;
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}
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bool DpmsInputEventFilter::touchDown(qint32 id, const QPointF &pos, quint32 time)
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{
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if (m_enableDoubleTap) {
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if (m_touchPoints.isEmpty()) {
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if (!m_doubleTapTimer.isValid()) {
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// this is the first tap
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m_doubleTapTimer.start();
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} else {
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if (m_doubleTapTimer.elapsed() < qApp->doubleClickInterval()) {
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m_secondTap = true;
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} else {
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// took too long. Let's consider it a new click
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m_doubleTapTimer.restart();
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}
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}
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} else {
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// not a double tap
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m_doubleTapTimer.invalidate();
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m_secondTap = false;
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}
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m_touchPoints << id;
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}
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return true;
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}
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bool DpmsInputEventFilter::touchUp(qint32 id, quint32 time)
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{
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if (m_enableDoubleTap) {
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m_touchPoints.removeAll(id);
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if (m_touchPoints.isEmpty() && m_doubleTapTimer.isValid() && m_secondTap) {
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if (m_doubleTapTimer.elapsed() < qApp->doubleClickInterval()) {
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waylandServer()->seat()->setTimestamp(time);
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notify();
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}
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m_doubleTapTimer.invalidate();
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m_secondTap = false;
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}
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}
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return true;
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}
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bool DpmsInputEventFilter::touchMotion(qint32 id, const QPointF &pos, quint32 time)
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{
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// ignore the event
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return true;
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}
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void DpmsInputEventFilter::notify()
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{
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const QList<Output *> outputs = workspace()->outputs();
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for (Output *output : outputs) {
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output->setDpmsMode(Output::DpmsMode::On);
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}
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}
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}
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