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cursor.cpp
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/*
KWin - the KDE window manager
This file is part of the KDE project.
SPDX-FileCopyrightText: 2013 Martin Gräßlin <[email protected]>
SPDX-License-Identifier: GPL-2.0-or-later
*/
#include "cursor.h"
// kwin
#include "input.h"
#include "keyboard_input.h"
#include "main.h"
#include "platform.h"
#include "utils.h"
#include "xcbutils.h"
// KDE
#include <KConfig>
#include <KConfigGroup>
// Qt
#include <QAbstractEventDispatcher>
#include <QDBusConnection>
#include <QScreen>
#include <QTimer>
namespace KWin
{
Cursors *Cursors::s_self = nullptr;
Cursors *Cursors::self() {
if (!s_self)
s_self = new Cursors;
return s_self;
}
void Cursors::addCursor(Cursor* cursor)
{
Q_ASSERT(!m_cursors.contains(cursor));
m_cursors += cursor;
connect(cursor, &Cursor::posChanged, this, [this, cursor] (const QPoint &pos) {
setCurrentCursor(cursor);
Q_EMIT positionChanged(cursor, pos);
});
}
void Cursors::removeCursor(Cursor* cursor)
{
m_cursors.removeOne(cursor);
if (m_currentCursor == cursor) {
if (m_cursors.isEmpty())
m_currentCursor = nullptr;
else
setCurrentCursor(m_cursors.constFirst());
}
if (m_mouse == cursor) {
m_mouse = nullptr;
}
}
void Cursors::setCurrentCursor(Cursor* cursor)
{
if (m_currentCursor == cursor)
return;
Q_ASSERT(m_cursors.contains(cursor) || !cursor);
if (m_currentCursor) {
disconnect(m_currentCursor, &Cursor::rendered, this, &Cursors::currentCursorRendered);
disconnect(m_currentCursor, &Cursor::cursorChanged, this, &Cursors::emitCurrentCursorChanged);
}
m_currentCursor = cursor;
connect(m_currentCursor, &Cursor::rendered, this, &Cursors::currentCursorRendered);
connect(m_currentCursor, &Cursor::cursorChanged, this, &Cursors::emitCurrentCursorChanged);
Q_EMIT currentCursorChanged(m_currentCursor);
}
void Cursors::emitCurrentCursorChanged()
{
Q_EMIT currentCursorChanged(m_currentCursor);
}
Cursor::Cursor(QObject *parent)
: QObject(parent)
, m_mousePollingCounter(0)
, m_cursorTrackingCounter(0)
, m_themeName(defaultThemeName())
, m_themeSize(defaultThemeSize())
{
loadThemeSettings();
QDBusConnection::sessionBus().connect(QString(), QStringLiteral("/KGlobalSettings"), QStringLiteral("org.kde.KGlobalSettings"),
QStringLiteral("notifyChange"), this, SLOT(slotKGlobalSettingsNotifyChange(int,int)));
}
Cursor::~Cursor()
{
Cursors::self()->removeCursor(this);
}
void Cursor::loadThemeSettings()
{
QString themeName = QString::fromUtf8(qgetenv("XCURSOR_THEME"));
bool ok = false;
// XCURSOR_SIZE might not be set (e.g. by startkde)
const uint themeSize = qEnvironmentVariableIntValue("XCURSOR_SIZE", &ok);
if (!themeName.isEmpty() && ok) {
updateTheme(themeName, themeSize);
return;
}
// didn't get from environment variables, read from config file
loadThemeFromKConfig();
}
void Cursor::loadThemeFromKConfig()
{
KConfigGroup mousecfg(InputConfig::self()->inputConfig(), "Mouse");
const QString themeName = mousecfg.readEntry("cursorTheme", defaultThemeName());
const uint themeSize = mousecfg.readEntry("cursorSize", defaultThemeSize());
updateTheme(themeName, themeSize);
}
void Cursor::updateTheme(const QString &name, int size)
{
if (m_themeName != name || m_themeSize != size) {
m_themeName = name;
m_themeSize = size;
emit themeChanged();
}
}
void Cursor::slotKGlobalSettingsNotifyChange(int type, int arg)
{
// #endif
Q_UNUSED(arg)
if (type == 5 /*CursorChanged*/) {
InputConfig::self()->inputConfig()->reparseConfiguration();
loadThemeFromKConfig();
// sync to environment
qputenv("XCURSOR_THEME", m_themeName.toUtf8());
qputenv("XCURSOR_SIZE", QByteArray::number(m_themeSize));
}
}
QRect Cursor::geometry() const
{
return rect().translated(m_pos - hotspot());
}
QRect Cursor::rect() const
{
return QRect(QPoint(0, 0), image().size() / image().devicePixelRatio());
}
QPoint Cursor::pos()
{
doGetPos();
return m_pos;
}
void Cursor::setPos(const QPoint &pos)
{
// first query the current pos to not warp to the already existing pos
if (pos == m_pos) {
return;
}
m_pos = pos;
doSetPos();
}
void Cursor::setPos(int x, int y)
{
setPos(QPoint(x, y));
}
void Cursor::updateCursor(const QImage &image, const QPoint &hotspot)
{
m_image = image;
m_hotspot = hotspot;
Q_EMIT cursorChanged();
}
xcb_cursor_t Cursor::getX11Cursor(CursorShape shape)
{
Q_UNUSED(shape)
return XCB_CURSOR_NONE;
}
xcb_cursor_t Cursor::getX11Cursor(const QByteArray &name)
{
Q_UNUSED(name)
return XCB_CURSOR_NONE;
}
xcb_cursor_t Cursor::x11Cursor(CursorShape shape)
{
return getX11Cursor(shape);
}
xcb_cursor_t Cursor::x11Cursor(const QByteArray &name)
{
return getX11Cursor(name);
}
void Cursor::doSetPos()
{
emit posChanged(m_pos);
}
void Cursor::doGetPos()
{
}
void Cursor::updatePos(const QPoint &pos)
{
if (m_pos == pos) {
return;
}
m_pos = pos;
emit posChanged(m_pos);
}
void Cursor::startMousePolling()
{
++m_mousePollingCounter;
if (m_mousePollingCounter == 1) {
doStartMousePolling();
}
}
void Cursor::stopMousePolling()
{
Q_ASSERT(m_mousePollingCounter > 0);
--m_mousePollingCounter;
if (m_mousePollingCounter == 0) {
doStopMousePolling();
}
}
void Cursor::doStartMousePolling()
{
}
void Cursor::doStopMousePolling()
{
}
void Cursor::startCursorTracking()
{
++m_cursorTrackingCounter;
if (m_cursorTrackingCounter == 1) {
doStartCursorTracking();
}
}
void Cursor::stopCursorTracking()
{
Q_ASSERT(m_cursorTrackingCounter > 0);
--m_cursorTrackingCounter;
if (m_cursorTrackingCounter == 0) {
doStopCursorTracking();
}
}
void Cursor::doStartCursorTracking()
{
}
void Cursor::doStopCursorTracking()
{
}
QVector<QByteArray> Cursor::cursorAlternativeNames(const QByteArray &name)
{
static const QHash<QByteArray, QVector<QByteArray>> alternatives = {
{QByteArrayLiteral("left_ptr"), {QByteArrayLiteral("arrow"),
QByteArrayLiteral("dnd-none"),
QByteArrayLiteral("op_left_arrow")}},
{QByteArrayLiteral("cross"), {QByteArrayLiteral("crosshair"),
QByteArrayLiteral("diamond-cross"),
QByteArrayLiteral("cross-reverse")}},
{QByteArrayLiteral("up_arrow"), {QByteArrayLiteral("center_ptr"),
QByteArrayLiteral("sb_up_arrow"),
QByteArrayLiteral("centre_ptr")}},
{QByteArrayLiteral("wait"), {QByteArrayLiteral("watch"),
QByteArrayLiteral("progress")}},
{QByteArrayLiteral("ibeam"), {QByteArrayLiteral("xterm"),
QByteArrayLiteral("text")}},
{QByteArrayLiteral("size_all"), {QByteArrayLiteral("fleur")}},
{QByteArrayLiteral("pointing_hand"), {QByteArrayLiteral("hand2"),
QByteArrayLiteral("hand"),
QByteArrayLiteral("hand1"),
QByteArrayLiteral("pointer"),
QByteArrayLiteral("e29285e634086352946a0e7090d73106"),
QByteArrayLiteral("9d800788f1b08800ae810202380a0822")}},
{QByteArrayLiteral("size_ver"), {QByteArrayLiteral("00008160000006810000408080010102"),
QByteArrayLiteral("sb_v_double_arrow"),
QByteArrayLiteral("v_double_arrow"),
QByteArrayLiteral("n-resize"),
QByteArrayLiteral("s-resize"),
QByteArrayLiteral("col-resize"),
QByteArrayLiteral("top_side"),
QByteArrayLiteral("bottom_side"),
QByteArrayLiteral("base_arrow_up"),
QByteArrayLiteral("base_arrow_down"),
QByteArrayLiteral("based_arrow_down"),
QByteArrayLiteral("based_arrow_up")}},
{QByteArrayLiteral("size_hor"), {QByteArrayLiteral("028006030e0e7ebffc7f7070c0600140"),
QByteArrayLiteral("sb_h_double_arrow"),
QByteArrayLiteral("h_double_arrow"),
QByteArrayLiteral("e-resize"),
QByteArrayLiteral("w-resize"),
QByteArrayLiteral("row-resize"),
QByteArrayLiteral("right_side"),
QByteArrayLiteral("left_side")}},
{QByteArrayLiteral("size_bdiag"), {QByteArrayLiteral("fcf1c3c7cd4491d801f1e1c78f100000"),
QByteArrayLiteral("fd_double_arrow"),
QByteArrayLiteral("bottom_left_corner"),
QByteArrayLiteral("top_right_corner")}},
{QByteArrayLiteral("size_fdiag"), {QByteArrayLiteral("c7088f0f3e6c8088236ef8e1e3e70000"),
QByteArrayLiteral("bd_double_arrow"),
QByteArrayLiteral("bottom_right_corner"),
QByteArrayLiteral("top_left_corner")}},
{QByteArrayLiteral("whats_this"), {QByteArrayLiteral("d9ce0ab605698f320427677b458ad60b"),
QByteArrayLiteral("left_ptr_help"),
QByteArrayLiteral("help"),
QByteArrayLiteral("question_arrow"),
QByteArrayLiteral("dnd-ask"),
QByteArrayLiteral("5c6cd98b3f3ebcb1f9c7f1c204630408")}},
{QByteArrayLiteral("split_h"), {QByteArrayLiteral("14fef782d02440884392942c11205230"),
QByteArrayLiteral("size_hor")}},
{QByteArrayLiteral("split_v"), {QByteArrayLiteral("2870a09082c103050810ffdffffe0204"),
QByteArrayLiteral("size_ver")}},
{QByteArrayLiteral("forbidden"), {QByteArrayLiteral("03b6e0fcb3499374a867c041f52298f0"),
QByteArrayLiteral("circle"),
QByteArrayLiteral("dnd-no-drop"),
QByteArrayLiteral("not-allowed")}},
{QByteArrayLiteral("left_ptr_watch"), {QByteArrayLiteral("3ecb610c1bf2410f44200f48c40d3599"),
QByteArrayLiteral("00000000000000020006000e7e9ffc3f"),
QByteArrayLiteral("08e8e1c95fe2fc01f976f1e063a24ccd")}},
{QByteArrayLiteral("openhand"), {QByteArrayLiteral("9141b49c8149039304290b508d208c40"),
QByteArrayLiteral("all_scroll"),
QByteArrayLiteral("all-scroll")}},
{QByteArrayLiteral("closedhand"), {QByteArrayLiteral("05e88622050804100c20044008402080"),
QByteArrayLiteral("4498f0e0c1937ffe01fd06f973665830"),
QByteArrayLiteral("9081237383d90e509aa00f00170e968f"),
QByteArrayLiteral("fcf21c00b30f7e3f83fe0dfd12e71cff")}},
{QByteArrayLiteral("dnd-link"), {QByteArrayLiteral("link"),
QByteArrayLiteral("alias"),
QByteArrayLiteral("3085a0e285430894940527032f8b26df"),
QByteArrayLiteral("640fb0e74195791501fd1ed57b41487f"),
QByteArrayLiteral("a2a266d0498c3104214a47bd64ab0fc8")}},
{QByteArrayLiteral("dnd-copy"), {QByteArrayLiteral("copy"),
QByteArrayLiteral("1081e37283d90000800003c07f3ef6bf"),
QByteArrayLiteral("6407b0e94181790501fd1e167b474872"),
QByteArrayLiteral("b66166c04f8c3109214a4fbd64a50fc8")}},
{QByteArrayLiteral("dnd-move"), {QByteArrayLiteral("move")}},
{QByteArrayLiteral("sw-resize"), {QByteArrayLiteral("size_bdiag"),
QByteArrayLiteral("fcf1c3c7cd4491d801f1e1c78f100000"),
QByteArrayLiteral("fd_double_arrow"),
QByteArrayLiteral("bottom_left_corner")}},
{QByteArrayLiteral("se-resize"), {QByteArrayLiteral("size_fdiag"),
QByteArrayLiteral("c7088f0f3e6c8088236ef8e1e3e70000"),
QByteArrayLiteral("bd_double_arrow"),
QByteArrayLiteral("bottom_right_corner")}},
{QByteArrayLiteral("ne-resize"), {QByteArrayLiteral("size_bdiag"),
QByteArrayLiteral("fcf1c3c7cd4491d801f1e1c78f100000"),
QByteArrayLiteral("fd_double_arrow"),
QByteArrayLiteral("top_right_corner")}},
{QByteArrayLiteral("nw-resize"), {QByteArrayLiteral("size_fdiag"),
QByteArrayLiteral("c7088f0f3e6c8088236ef8e1e3e70000"),
QByteArrayLiteral("bd_double_arrow"),
QByteArrayLiteral("top_left_corner")}},
{QByteArrayLiteral("n-resize"), {QByteArrayLiteral("size_ver"),
QByteArrayLiteral("00008160000006810000408080010102"),
QByteArrayLiteral("sb_v_double_arrow"),
QByteArrayLiteral("v_double_arrow"),
QByteArrayLiteral("col-resize"),
QByteArrayLiteral("top_side")}},
{QByteArrayLiteral("e-resize"), {QByteArrayLiteral("size_hor"),
QByteArrayLiteral("028006030e0e7ebffc7f7070c0600140"),
QByteArrayLiteral("sb_h_double_arrow"),
QByteArrayLiteral("h_double_arrow"),
QByteArrayLiteral("row-resize"),
QByteArrayLiteral("left_side")}},
{QByteArrayLiteral("s-resize"), {QByteArrayLiteral("size_ver"),
QByteArrayLiteral("00008160000006810000408080010102"),
QByteArrayLiteral("sb_v_double_arrow"),
QByteArrayLiteral("v_double_arrow"),
QByteArrayLiteral("col-resize"),
QByteArrayLiteral("bottom_side")}},
{QByteArrayLiteral("w-resize"), {QByteArrayLiteral("size_hor"),
QByteArrayLiteral("028006030e0e7ebffc7f7070c0600140"),
QByteArrayLiteral("sb_h_double_arrow"),
QByteArrayLiteral("h_double_arrow"),
QByteArrayLiteral("right_side")}}
};
auto it = alternatives.find(name);
if (it != alternatives.end()) {
return it.value();
}
return QVector<QByteArray>();
}
QString Cursor::defaultThemeName()
{
return QStringLiteral("default");
}
int Cursor::defaultThemeSize()
{
return 24;
}
QByteArray CursorShape::name() const
{
switch (m_shape) {
case Qt::ArrowCursor:
return QByteArrayLiteral("left_ptr");
case Qt::UpArrowCursor:
return QByteArrayLiteral("up_arrow");
case Qt::CrossCursor:
return QByteArrayLiteral("cross");
case Qt::WaitCursor:
return QByteArrayLiteral("wait");
case Qt::IBeamCursor:
return QByteArrayLiteral("ibeam");
case Qt::SizeVerCursor:
return QByteArrayLiteral("size_ver");
case Qt::SizeHorCursor:
return QByteArrayLiteral("size_hor");
case Qt::SizeBDiagCursor:
return QByteArrayLiteral("size_bdiag");
case Qt::SizeFDiagCursor:
return QByteArrayLiteral("size_fdiag");
case Qt::SizeAllCursor:
return QByteArrayLiteral("size_all");
case Qt::SplitVCursor:
return QByteArrayLiteral("split_v");
case Qt::SplitHCursor:
return QByteArrayLiteral("split_h");
case Qt::PointingHandCursor:
return QByteArrayLiteral("pointing_hand");
case Qt::ForbiddenCursor:
return QByteArrayLiteral("forbidden");
case Qt::OpenHandCursor:
return QByteArrayLiteral("openhand");
case Qt::ClosedHandCursor:
return QByteArrayLiteral("closedhand");
case Qt::WhatsThisCursor:
return QByteArrayLiteral("whats_this");
case Qt::BusyCursor:
return QByteArrayLiteral("left_ptr_watch");
case Qt::DragMoveCursor:
return QByteArrayLiteral("dnd-move");
case Qt::DragCopyCursor:
return QByteArrayLiteral("dnd-copy");
case Qt::DragLinkCursor:
return QByteArrayLiteral("dnd-link");
case KWin::ExtendedCursor::SizeNorthEast:
return QByteArrayLiteral("ne-resize");
case KWin::ExtendedCursor::SizeNorth:
return QByteArrayLiteral("n-resize");
case KWin::ExtendedCursor::SizeNorthWest:
return QByteArrayLiteral("nw-resize");
case KWin::ExtendedCursor::SizeEast:
return QByteArrayLiteral("e-resize");
case KWin::ExtendedCursor::SizeWest:
return QByteArrayLiteral("w-resize");
case KWin::ExtendedCursor::SizeSouthEast:
return QByteArrayLiteral("se-resize");
case KWin::ExtendedCursor::SizeSouth:
return QByteArrayLiteral("s-resize");
case KWin::ExtendedCursor::SizeSouthWest:
return QByteArrayLiteral("sw-resize");
default:
return QByteArray();
}
}
InputConfig *InputConfig::s_self = nullptr;
InputConfig *InputConfig::self() {
if (!s_self)
s_self = new InputConfig;
return s_self;
}
InputConfig::InputConfig()
: m_inputConfig(KSharedConfig::openConfig(QStringLiteral("kcminputrc"), KConfig::NoGlobals))
{
}
} // namespace