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/*
SPDX-FileCopyrightText: 2018 Roman Gilg <subdiff@gmail.com>
SPDX-FileCopyrightText: 2021 Aleix Pol Gonzalez <aleixpol@kde.org>
SPDX-License-Identifier: LGPL-2.1-only OR LGPL-3.0-only OR LicenseRef-KDE-Accepted-LGPL
*/
#include "pointerlocker.h"
#include <QCursor>
#include <QGuiApplication>
#include <QQmlContext>
#include <QQmlEngine>
#include <QDebug>
void AbstractPointerLocker::setWindow(QWindow *window)
{
if (m_window == window) {
return;
}
m_window = window;
Q_EMIT windowChanged();
}
PointerLockerQt::PointerLockerQt(QObject *parent)
: AbstractPointerLocker(parent)
{
}
PointerLockerQt::~PointerLockerQt() = default;
void PointerLockerQt::setLocked(bool lock)
{
if (m_isLocked == lock) {
return;
}
m_isLocked = lock;
if (lock) {
/* Cursor needs to be hidden such that Xwayland emulates warps. */
QGuiApplication::setOverrideCursor(QCursor(Qt::BlankCursor));
m_originalPosition = QCursor::pos();
m_window->installEventFilter(this);
Q_EMIT lockedChanged(true);
Q_EMIT lockEffectiveChanged(true);
} else {
m_window->removeEventFilter(this);
QGuiApplication::restoreOverrideCursor();
Q_EMIT lockedChanged(false);
Q_EMIT lockEffectiveChanged(false);
}
}
bool PointerLockerQt::isLocked() const
{
return m_isLocked;
}
bool PointerLockerQt::eventFilter(QObject *watched, QEvent *event)
{
if (watched != m_window || event->type() != QEvent::MouseMove || !isLocked()) {
return false;
}
const auto newPos = QCursor::pos();
const QPointF dist = newPos - m_originalPosition;
Q_EMIT pointerMoved({dist.x(), dist.y()});
QCursor::setPos(m_originalPosition);
return true;
}
#include "moc_pointerlocker.cpp"
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