585 lines
20 KiB
C++
585 lines
20 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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Copyright (C) 2013 Martin Gräßlin <mgraesslin@kde.org>
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>.
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*********************************************************************/
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#include "cursor.h"
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// kwin
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#include <kwinglobals.h>
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#include "input.h"
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#include "main.h"
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#include "utils.h"
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#include "xcbutils.h"
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// KDE
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#include <KConfig>
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#include <KConfigGroup>
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#include <KSharedConfig>
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// Qt
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#include <QDBusConnection>
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#include <QScreen>
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#include <QTimer>
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// xcb
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#include <xcb/xfixes.h>
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#include <xcb/xcb_cursor.h>
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namespace KWin
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{
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Cursor *Cursor::s_self = nullptr;
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Cursor *Cursor::create(QObject *parent)
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{
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Q_ASSERT(!s_self);
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#ifndef KCMRULES
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if (kwinApp()->operationMode() == Application::OperationModeX11) {
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s_self = new X11Cursor(parent);
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} else {
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s_self = new InputRedirectionCursor(parent);
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}
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#else
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s_self = new X11Cursor(parent);
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#endif
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return s_self;
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}
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Cursor::Cursor(QObject *parent)
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: QObject(parent)
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, m_mousePollingCounter(0)
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, m_cursorTrackingCounter(0)
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, m_themeName("default")
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, m_themeSize(24)
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{
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loadThemeSettings();
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QDBusConnection::sessionBus().connect(QString(), QStringLiteral("/KGlobalSettings"), QStringLiteral("org.kde.KGlobalSettings"),
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QStringLiteral("notifyChange"), this, SLOT(slotKGlobalSettingsNotifyChange(int,int)));
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}
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Cursor::~Cursor()
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{
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s_self = NULL;
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}
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void Cursor::loadThemeSettings()
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{
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QString themeName = QString::fromUtf8(qgetenv("XCURSOR_THEME"));
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bool ok = false;
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// XCURSOR_SIZE might not be set (e.g. by startkde)
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uint themeSize = 0;
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if (qEnvironmentVariableIsSet("XCURSOR_SIZE")) {
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themeSize = qgetenv("XCURSOR_SIZE").toUInt(&ok);
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}
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if (!ok) {
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if (QScreen *s = QGuiApplication::primaryScreen()) {
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themeSize = s->logicalDotsPerInchY() * 16 / 72;
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ok = true;
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}
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}
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if (!themeName.isEmpty() && ok) {
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updateTheme(themeName, themeSize);
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return;
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}
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// didn't get from environment variables, read from config file
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loadThemeFromKConfig();
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}
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void Cursor::loadThemeFromKConfig()
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{
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KConfigGroup mousecfg(KSharedConfig::openConfig("kcminputrc", KConfig::NoGlobals), "Mouse");
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const QString themeName = mousecfg.readEntry("cursorTheme", "default");
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bool ok = false;
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uint themeSize = mousecfg.readEntry("cursorSize", QString("24")).toUInt(&ok);
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if (!ok) {
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themeSize = 24;
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}
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updateTheme(themeName, themeSize);
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}
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void Cursor::updateTheme(const QString &name, int size)
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{
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if (m_themeName != name || m_themeSize != size) {
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m_themeName = name;
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m_themeSize = size;
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emit themeChanged();
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}
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}
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void Cursor::slotKGlobalSettingsNotifyChange(int type, int arg)
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{
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Q_UNUSED(arg)
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if (type == 5 /*CursorChanged*/) {
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loadThemeFromKConfig();
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// sync to environment
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qputenv("XCURSOR_THEME", m_themeName.toUtf8());
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qputenv("XCURSOR_SIZE", QByteArray::number(m_themeSize));
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}
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}
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QPoint Cursor::pos()
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{
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s_self->doGetPos();
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return s_self->m_pos;
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}
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void Cursor::setPos(const QPoint &pos)
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{
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// first query the current pos to not warp to the already existing pos
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if (pos == Cursor::pos()) {
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return;
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}
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s_self->m_pos = pos;
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s_self->doSetPos();
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}
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void Cursor::setPos(int x, int y)
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{
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Cursor::setPos(QPoint(x, y));
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}
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xcb_cursor_t Cursor::getX11Cursor(Qt::CursorShape shape)
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{
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Q_UNUSED(shape)
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return XCB_CURSOR_NONE;
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}
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xcb_cursor_t Cursor::getX11Cursor(const QByteArray &name)
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{
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Q_UNUSED(name)
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return XCB_CURSOR_NONE;
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}
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xcb_cursor_t Cursor::x11Cursor(Qt::CursorShape shape)
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{
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return s_self->getX11Cursor(shape);
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}
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xcb_cursor_t Cursor::x11Cursor(const QByteArray &name)
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{
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return s_self->getX11Cursor(name);
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}
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void Cursor::doSetPos()
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{
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emit posChanged(m_pos);
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}
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void Cursor::doGetPos()
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{
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}
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void Cursor::updatePos(const QPoint &pos)
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{
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if (m_pos == pos) {
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return;
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}
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m_pos = pos;
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emit posChanged(m_pos);
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}
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void Cursor::startMousePolling()
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{
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++m_mousePollingCounter;
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if (m_mousePollingCounter == 1) {
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doStartMousePolling();
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}
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}
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void Cursor::stopMousePolling()
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{
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Q_ASSERT(m_mousePollingCounter > 0);
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--m_mousePollingCounter;
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if (m_mousePollingCounter == 0) {
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doStopMousePolling();
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}
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}
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void Cursor::doStartMousePolling()
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{
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}
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void Cursor::doStopMousePolling()
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{
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}
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void Cursor::startCursorTracking()
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{
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++m_cursorTrackingCounter;
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if (m_cursorTrackingCounter == 1) {
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doStartCursorTracking();
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}
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}
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void Cursor::stopCursorTracking()
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{
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Q_ASSERT(m_cursorTrackingCounter > 0);
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--m_cursorTrackingCounter;
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if (m_cursorTrackingCounter == 0) {
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doStopCursorTracking();
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}
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}
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void Cursor::doStartCursorTracking()
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{
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}
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void Cursor::doStopCursorTracking()
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{
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}
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void Cursor::notifyCursorChanged(uint32_t serial)
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{
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if (m_cursorTrackingCounter <= 0) {
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// cursor change tracking is currently disabled, so don't emit signal
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return;
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}
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emit cursorChanged(serial);
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}
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X11Cursor::X11Cursor(QObject *parent)
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: Cursor(parent)
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, m_timeStamp(XCB_TIME_CURRENT_TIME)
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, m_buttonMask(0)
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, m_resetTimeStampTimer(new QTimer(this))
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, m_mousePollingTimer(new QTimer(this))
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{
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m_resetTimeStampTimer->setSingleShot(true);
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connect(m_resetTimeStampTimer, SIGNAL(timeout()), SLOT(resetTimeStamp()));
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// TODO: How often do we really need to poll?
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m_mousePollingTimer->setInterval(50);
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connect(m_mousePollingTimer, SIGNAL(timeout()), SLOT(mousePolled()));
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connect(this, &Cursor::themeChanged, this, [this] { m_cursors.clear(); });
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}
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X11Cursor::~X11Cursor()
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{
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}
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void X11Cursor::doSetPos()
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{
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const QPoint &pos = currentPos();
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xcb_warp_pointer(connection(), XCB_WINDOW_NONE, rootWindow(), 0, 0, 0, 0, pos.x(), pos.y());
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// call default implementation to emit signal
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Cursor::doSetPos();
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}
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void X11Cursor::doGetPos()
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{
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if (m_timeStamp != XCB_TIME_CURRENT_TIME &&
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m_timeStamp == xTime()) {
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// time stamps did not change, no need to query again
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return;
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}
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m_timeStamp = xTime();
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Xcb::Pointer pointer(rootWindow());
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if (pointer.isNull()) {
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return;
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}
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m_buttonMask = pointer->mask;
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updatePos(pointer->root_x, pointer->root_y);
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m_resetTimeStampTimer->start(0);
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}
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void X11Cursor::resetTimeStamp()
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{
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m_timeStamp = XCB_TIME_CURRENT_TIME;
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}
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void X11Cursor::doStartMousePolling()
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{
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m_mousePollingTimer->start();
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}
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void X11Cursor::doStopMousePolling()
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{
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m_mousePollingTimer->stop();
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}
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void X11Cursor::doStartCursorTracking()
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{
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xcb_xfixes_select_cursor_input(connection(), rootWindow(), XCB_XFIXES_CURSOR_NOTIFY_MASK_DISPLAY_CURSOR);
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}
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void X11Cursor::doStopCursorTracking()
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{
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xcb_xfixes_select_cursor_input(connection(), rootWindow(), 0);
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}
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void X11Cursor::mousePolled()
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{
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static QPoint lastPos = currentPos();
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static uint16_t lastMask = m_buttonMask;
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doGetPos(); // Update if needed
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if (lastPos != currentPos() || lastMask != m_buttonMask) {
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emit mouseChanged(currentPos(), lastPos,
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x11ToQtMouseButtons(m_buttonMask), x11ToQtMouseButtons(lastMask),
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x11ToQtKeyboardModifiers(m_buttonMask), x11ToQtKeyboardModifiers(lastMask));
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lastPos = currentPos();
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lastMask = m_buttonMask;
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}
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}
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xcb_cursor_t X11Cursor::getX11Cursor(Qt::CursorShape shape)
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{
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return getX11Cursor(cursorName(shape));
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}
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xcb_cursor_t X11Cursor::getX11Cursor(const QByteArray &name)
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{
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auto it = m_cursors.constFind(name);
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if (it != m_cursors.constEnd()) {
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return it.value();
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}
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return createCursor(name);
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}
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xcb_cursor_t X11Cursor::createCursor(const QByteArray &name)
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{
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if (name.isEmpty()) {
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return XCB_CURSOR_NONE;
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}
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xcb_cursor_context_t *ctx;
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if (xcb_cursor_context_new(connection(), defaultScreen(), &ctx) < 0) {
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return XCB_CURSOR_NONE;
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}
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xcb_cursor_t cursor = xcb_cursor_load_cursor(ctx, name.constData());
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if (cursor == XCB_CURSOR_NONE) {
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static const QHash<QByteArray, QVector<QByteArray>> alternatives = {
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{QByteArrayLiteral("left_ptr"), {QByteArrayLiteral("arrow"),
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QByteArrayLiteral("dnd-none"),
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QByteArrayLiteral("op_left_arrow")}},
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{QByteArrayLiteral("cross"), {QByteArrayLiteral("crosshair"),
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QByteArrayLiteral("diamond-cross"),
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QByteArrayLiteral("cross-reverse")}},
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{QByteArrayLiteral("up_arrow"), {QByteArrayLiteral("center_ptr"),
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QByteArrayLiteral("sb_up_arrow"),
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QByteArrayLiteral("centre_ptr")}},
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{QByteArrayLiteral("wait"), {QByteArrayLiteral("watch"),
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QByteArrayLiteral("progress")}},
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{QByteArrayLiteral("ibeam"), {QByteArrayLiteral("xterm"),
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QByteArrayLiteral("text")}},
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{QByteArrayLiteral("size_all"), {QByteArrayLiteral("fleur")}},
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{QByteArrayLiteral("pointing_hand"), {QByteArrayLiteral("hand2"),
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QByteArrayLiteral("hand"),
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QByteArrayLiteral("hand1"),
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QByteArrayLiteral("pointer"),
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QByteArrayLiteral("e29285e634086352946a0e7090d73106"),
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QByteArrayLiteral("9d800788f1b08800ae810202380a0822")}},
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{QByteArrayLiteral("size_ver"), {QByteArrayLiteral("00008160000006810000408080010102"),
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QByteArrayLiteral("sb_v_double_arrow"),
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QByteArrayLiteral("v_double_arrow"),
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QByteArrayLiteral("n-resize"),
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QByteArrayLiteral("s-resize"),
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QByteArrayLiteral("col-resize"),
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QByteArrayLiteral("top_side"),
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QByteArrayLiteral("bottom_side"),
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QByteArrayLiteral("base_arrow_up"),
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QByteArrayLiteral("base_arrow_down"),
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QByteArrayLiteral("based_arrow_down"),
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QByteArrayLiteral("based_arrow_up")}},
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{QByteArrayLiteral("size_hor"), {QByteArrayLiteral("028006030e0e7ebffc7f7070c0600140"),
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QByteArrayLiteral("sb_h_double_arrow"),
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QByteArrayLiteral("h_double_arrow"),
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QByteArrayLiteral("e-resize"),
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QByteArrayLiteral("w-resize"),
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QByteArrayLiteral("row-resize"),
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QByteArrayLiteral("right_side"),
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QByteArrayLiteral("left_side")}},
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{QByteArrayLiteral("size_bdiag"), {QByteArrayLiteral("fcf1c3c7cd4491d801f1e1c78f100000"),
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QByteArrayLiteral("fd_double_arrow"),
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QByteArrayLiteral("bottom_left_corner"),
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QByteArrayLiteral("top_right_corner")}},
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{QByteArrayLiteral("size_fdiag"), {QByteArrayLiteral("c7088f0f3e6c8088236ef8e1e3e70000"),
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QByteArrayLiteral("bd_double_arrow"),
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QByteArrayLiteral("bottom_right_corner"),
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QByteArrayLiteral("top_left_corner")}},
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{QByteArrayLiteral("whats_this"), {QByteArrayLiteral("d9ce0ab605698f320427677b458ad60b"),
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QByteArrayLiteral("left_ptr_help"),
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QByteArrayLiteral("help"),
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QByteArrayLiteral("question_arrow"),
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QByteArrayLiteral("dnd-ask"),
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QByteArrayLiteral("5c6cd98b3f3ebcb1f9c7f1c204630408")}},
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{QByteArrayLiteral("split_h"), {QByteArrayLiteral("14fef782d02440884392942c11205230"),
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QByteArrayLiteral("size_hor")}},
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{QByteArrayLiteral("split_v"), {QByteArrayLiteral("2870a09082c103050810ffdffffe0204"),
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QByteArrayLiteral("size_ver")}},
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{QByteArrayLiteral("forbidden"), {QByteArrayLiteral("03b6e0fcb3499374a867c041f52298f0"),
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QByteArrayLiteral("circle"),
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QByteArrayLiteral("dnd-no-drop"),
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QByteArrayLiteral("not-allowed")}},
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{QByteArrayLiteral("left_ptr_watch"), {QByteArrayLiteral("3ecb610c1bf2410f44200f48c40d3599"),
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QByteArrayLiteral("00000000000000020006000e7e9ffc3f"),
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QByteArrayLiteral("08e8e1c95fe2fc01f976f1e063a24ccd")}},
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{QByteArrayLiteral("openhand"), {QByteArrayLiteral("9141b49c8149039304290b508d208c40"),
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QByteArrayLiteral("all_scroll"),
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QByteArrayLiteral("all-scroll")}},
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{QByteArrayLiteral("closedhand"), {QByteArrayLiteral("05e88622050804100c20044008402080"),
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QByteArrayLiteral("4498f0e0c1937ffe01fd06f973665830"),
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QByteArrayLiteral("9081237383d90e509aa00f00170e968f"),
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QByteArrayLiteral("fcf21c00b30f7e3f83fe0dfd12e71cff")}},
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{QByteArrayLiteral("dnd-link"), {QByteArrayLiteral("link"),
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QByteArrayLiteral("alias"),
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QByteArrayLiteral("3085a0e285430894940527032f8b26df"),
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QByteArrayLiteral("640fb0e74195791501fd1ed57b41487f"),
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QByteArrayLiteral("a2a266d0498c3104214a47bd64ab0fc8")}},
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{QByteArrayLiteral("dnd-copy"), {QByteArrayLiteral("copy"),
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QByteArrayLiteral("1081e37283d90000800003c07f3ef6bf"),
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QByteArrayLiteral("6407b0e94181790501fd1e167b474872"),
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QByteArrayLiteral("b66166c04f8c3109214a4fbd64a50fc8")}},
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{QByteArrayLiteral("dnd-move"), {QByteArrayLiteral("move")}}
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};
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auto it = alternatives.find(name);
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if (it != alternatives.end()) {
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const auto &names = it.value();
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for (auto cit = names.begin(); cit != names.end(); ++cit) {
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cursor = xcb_cursor_load_cursor(ctx, (*cit).constData());
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if (cursor != XCB_CURSOR_NONE) {
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break;
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}
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}
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}
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}
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if (cursor != XCB_CURSOR_NONE) {
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m_cursors.insert(name, cursor);
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}
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xcb_cursor_context_free(ctx);
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return cursor;
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}
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QByteArray Cursor::cursorName(Qt::CursorShape shape) const
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{
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switch (shape) {
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case Qt::ArrowCursor:
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return QByteArray("left_ptr");
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case Qt::UpArrowCursor:
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return QByteArray("up_arrow");
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case Qt::CrossCursor:
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return QByteArray("cross");
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case Qt::WaitCursor:
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return QByteArray("wait");
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case Qt::IBeamCursor:
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return QByteArray("ibeam");
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case Qt::SizeVerCursor:
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return QByteArray("size_ver");
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case Qt::SizeHorCursor:
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return QByteArray("size_hor");
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case Qt::SizeBDiagCursor:
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return QByteArray("size_bdiag");
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case Qt::SizeFDiagCursor:
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return QByteArray("size_fdiag");
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case Qt::SizeAllCursor:
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return QByteArray("size_all");
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case Qt::SplitVCursor:
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return QByteArray("split_v");
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case Qt::SplitHCursor:
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return QByteArray("split_h");
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case Qt::PointingHandCursor:
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return QByteArray("pointing_hand");
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case Qt::ForbiddenCursor:
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return QByteArray("forbidden");
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case Qt::OpenHandCursor:
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return QByteArray("openhand");
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case Qt::ClosedHandCursor:
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return QByteArray("closedhand");
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case Qt::WhatsThisCursor:
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return QByteArray("whats_this");
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case Qt::BusyCursor:
|
|
return QByteArray("left_ptr_watch");
|
|
case Qt::DragMoveCursor:
|
|
return QByteArray("dnd-move");
|
|
case Qt::DragCopyCursor:
|
|
return QByteArray("dnd-copy");
|
|
case Qt::DragLinkCursor:
|
|
return QByteArray("dnd-link");
|
|
default:
|
|
return QByteArray();
|
|
}
|
|
}
|
|
|
|
InputRedirectionCursor::InputRedirectionCursor(QObject *parent)
|
|
: Cursor(parent)
|
|
, m_currentButtons(Qt::NoButton)
|
|
{
|
|
connect(input(), SIGNAL(globalPointerChanged(QPointF)), SLOT(slotPosChanged(QPointF)));
|
|
connect(input(), SIGNAL(pointerButtonStateChanged(uint32_t,InputRedirection::PointerButtonState)),
|
|
SLOT(slotPointerButtonChanged()));
|
|
#ifndef KCMRULES
|
|
connect(input(), &InputRedirection::keyboardModifiersChanged,
|
|
this, &InputRedirectionCursor::slotModifiersChanged);
|
|
connect(kwinApp(), &Application::x11ConnectionChanged, this,
|
|
[this] {
|
|
if (isCursorTracking()) {
|
|
doStartCursorTracking();
|
|
}
|
|
}, Qt::QueuedConnection
|
|
);
|
|
#endif
|
|
}
|
|
|
|
InputRedirectionCursor::~InputRedirectionCursor()
|
|
{
|
|
}
|
|
|
|
void InputRedirectionCursor::doSetPos()
|
|
{
|
|
if (input()->supportsPointerWarping()) {
|
|
input()->warpPointer(currentPos());
|
|
}
|
|
slotPosChanged(input()->globalPointer());
|
|
emit posChanged(currentPos());
|
|
}
|
|
|
|
void InputRedirectionCursor::slotPosChanged(const QPointF &pos)
|
|
{
|
|
const QPoint oldPos = currentPos();
|
|
updatePos(pos.toPoint());
|
|
emit mouseChanged(pos.toPoint(), oldPos, m_currentButtons, m_currentButtons,
|
|
input()->keyboardModifiers(), input()->keyboardModifiers());
|
|
}
|
|
|
|
void InputRedirectionCursor::slotModifiersChanged(Qt::KeyboardModifiers mods, Qt::KeyboardModifiers oldMods)
|
|
{
|
|
emit mouseChanged(currentPos(), currentPos(), m_currentButtons, m_currentButtons, mods, oldMods);
|
|
}
|
|
|
|
void InputRedirectionCursor::slotPointerButtonChanged()
|
|
{
|
|
const Qt::MouseButtons oldButtons = m_currentButtons;
|
|
m_currentButtons = input()->qtButtonStates();
|
|
const QPoint pos = currentPos();
|
|
emit mouseChanged(pos, pos, m_currentButtons, oldButtons, input()->keyboardModifiers(), input()->keyboardModifiers());
|
|
}
|
|
|
|
void InputRedirectionCursor::doStartCursorTracking()
|
|
{
|
|
if (!kwinApp()->x11Connection()) {
|
|
return;
|
|
}
|
|
xcb_xfixes_select_cursor_input(connection(), rootWindow(), XCB_XFIXES_CURSOR_NOTIFY_MASK_DISPLAY_CURSOR);
|
|
// TODO: also track the Wayland cursor
|
|
}
|
|
|
|
void InputRedirectionCursor::doStopCursorTracking()
|
|
{
|
|
if (!kwinApp()->x11Connection()) {
|
|
return;
|
|
}
|
|
xcb_xfixes_select_cursor_input(connection(), rootWindow(), 0);
|
|
// TODO: also track the Wayland cursor
|
|
}
|
|
|
|
} // namespace
|