diff --git a/pointer_input.cpp b/pointer_input.cpp
index 0a73c4e7a..25bf34da5 100644
--- a/pointer_input.cpp
+++ b/pointer_input.cpp
@@ -1,1410 +1,1396 @@
 /********************************************************************
  KWin - the KDE window manager
  This file is part of the KDE project.
 
 Copyright (C) 2013, 2016 Martin Gräßlin <mgraesslin@kde.org>
 Copyright (C) 2018 Roman Gilg <subdiff@gmail.com>
 Copyright (C) 2019 Vlad Zahorodnii <vladzzag@gmail.com>
 
 This program is free software; you can redistribute it and/or modify
 it under the terms of the GNU General Public License as published by
 the Free Software Foundation; either version 2 of the License, or
 (at your option) any later version.
 
 This program is distributed in the hope that it will be useful,
 but WITHOUT ANY WARRANTY; without even the implied warranty of
 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 GNU General Public License for more details.
 
 You should have received a copy of the GNU General Public License
 along with this program.  If not, see <http://www.gnu.org/licenses/>.
 *********************************************************************/
 #include "pointer_input.h"
 #include "platform.h"
 #include "x11client.h"
 #include "effects.h"
 #include "input_event.h"
 #include "input_event_spy.h"
 #include "osd.h"
 #include "screens.h"
 #include "xdgshellclient.h"
 #include "wayland_cursor_theme.h"
 #include "wayland_server.h"
 #include "workspace.h"
 #include "decorations/decoratedclient.h"
 #include "screens.h"
 // KDecoration
 #include <KDecoration2/Decoration>
 // KWayland
 #include <KWayland/Client/connection_thread.h>
 #include <KWayland/Client/buffer.h>
 #include <KWayland/Server/buffer_interface.h>
 #include <KWayland/Server/datadevice_interface.h>
 #include <KWayland/Server/display.h>
 #include <KWayland/Server/pointerconstraints_interface.h>
 #include <KWayland/Server/seat_interface.h>
 #include <KWayland/Server/surface_interface.h>
 // screenlocker
 #include <KScreenLocker/KsldApp>
 
 #include <KLocalizedString>
 
 #include <QHoverEvent>
 #include <QWindow>
 // Wayland
 #include <wayland-cursor.h>
 
 #include <linux/input.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 },
+    // in QtWayland mapped like that
+    { BTN_EXTRA , Qt::ExtraButton2 },
+    { BTN_BACK , Qt::BackButton },
+    { BTN_FORWARD , Qt::ForwardButton },
+    { BTN_TASK , Qt::TaskButton },
+    // mapped like that in QtWayland
+    { 0x118 , Qt::ExtraButton6 },
+    { 0x119 , Qt::ExtraButton7 },
+    { 0x11a , Qt::ExtraButton8 },
+    { 0x11b , Qt::ExtraButton9 },
+    { 0x11c , Qt::ExtraButton10 },
+    { 0x11d , Qt::ExtraButton11 },
+    { 0x11e , Qt::ExtraButton12 },
+    { 0x11f , Qt::ExtraButton13 },
+};
+
 static Qt::MouseButton buttonToQtMouseButton(uint32_t button)
 {
-    switch (button) {
-    case BTN_LEFT:
-        return Qt::LeftButton;
-    case BTN_MIDDLE:
-        return Qt::MiddleButton;
-    case BTN_RIGHT:
-        return Qt::RightButton;
-    case BTN_SIDE:
-        // in QtWayland mapped like that
-        return Qt::ExtraButton1;
-    case BTN_EXTRA:
-        // in QtWayland mapped like that
-        return Qt::ExtraButton2;
-    case BTN_BACK:
-        return Qt::BackButton;
-    case BTN_FORWARD:
-        return Qt::ForwardButton;
-    case BTN_TASK:
-        return Qt::TaskButton;
-        // mapped like that in QtWayland
-    case 0x118:
-        return Qt::ExtraButton6;
-    case 0x119:
-        return Qt::ExtraButton7;
-    case 0x11a:
-        return Qt::ExtraButton8;
-    case 0x11b:
-        return Qt::ExtraButton9;
-    case 0x11c:
-        return Qt::ExtraButton10;
-    case 0x11d:
-        return Qt::ExtraButton11;
-    case 0x11e:
-        return Qt::ExtraButton12;
-    case 0x11f:
-        return Qt::ExtraButton13;
-    }
     // 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 Qt::ExtraButton24;
+    return s_buttonToQtMouseButton.value(button, Qt::ExtraButton24);
+}
 }
 
 static bool screenContainsPos(const QPointF &pos)
 {
     for (int i = 0; i < screens()->count(); ++i) {
         if (screens()->geometry(i).contains(pos.toPoint())) {
             return true;
         }
     }
     return false;
 }
 
 static QPointF confineToBoundingBox(const QPointF &pos, const QRectF &boundingBox)
 {
     return QPointF(
         qBound(boundingBox.left(), pos.x(), boundingBox.right() - 1.0),
         qBound(boundingBox.top(), pos.y(), boundingBox.bottom() - 1.0)
     );
 }
 
 PointerInputRedirection::PointerInputRedirection(InputRedirection* parent)
     : InputDeviceHandler(parent)
     , m_cursor(nullptr)
     , m_supportsWarping(Application::usesLibinput())
 {
 }
 
 PointerInputRedirection::~PointerInputRedirection() = default;
 
 void PointerInputRedirection::init()
 {
     Q_ASSERT(!inited());
     m_cursor = new CursorImage(this);
     setInited(true);
     InputDeviceHandler::init();
 
     connect(m_cursor, &CursorImage::changed, kwinApp()->platform(), &Platform::cursorChanged);
     emit m_cursor->changed();
 
     connect(screens(), &Screens::changed, this, &PointerInputRedirection::updateAfterScreenChange);
     if (waylandServer()->hasScreenLockerIntegration()) {
         connect(ScreenLocker::KSldApp::self(), &ScreenLocker::KSldApp::lockStateChanged, this,
             [this] {
                 waylandServer()->seat()->cancelPointerPinchGesture();
                 waylandServer()->seat()->cancelPointerSwipeGesture();
                 update();
             }
         );
     }
     connect(workspace(), &QObject::destroyed, this, [this] { setInited(false); });
     connect(waylandServer(), &QObject::destroyed, this, [this] { setInited(false); });
     connect(waylandServer()->seat(), &KWayland::Server::SeatInterface::dragEnded, this,
         [this] {
             // need to force a focused pointer change
             waylandServer()->seat()->setFocusedPointerSurface(nullptr);
             setFocus(nullptr);
             update();
         }
     );
     // connect the move resize of all window
     auto setupMoveResizeConnection = [this] (AbstractClient *c) {
         connect(c, &AbstractClient::clientStartUserMovedResized, this, &PointerInputRedirection::updateOnStartMoveResize);
         connect(c, &AbstractClient::clientFinishUserMovedResized, this, &PointerInputRedirection::update);
     };
     const auto clients = workspace()->allClientList();
     std::for_each(clients.begin(), clients.end(), setupMoveResizeConnection);
     connect(workspace(), &Workspace::clientAdded, this, setupMoveResizeConnection);
     connect(waylandServer(), &WaylandServer::shellClientAdded, this, setupMoveResizeConnection);
 
     // warp the cursor to center of screen
     warp(screens()->geometry().center());
     updateAfterScreenChange();
 }
 
 void PointerInputRedirection::updateOnStartMoveResize()
 {
     breakPointerConstraints(focus() ? focus()->surface() : nullptr);
     disconnectPointerConstraintsConnection();
     setFocus(nullptr);
     waylandServer()->seat()->setFocusedPointerSurface(nullptr);
 }
 
 void PointerInputRedirection::updateToReset()
 {
     if (internalWindow()) {
         disconnect(m_internalWindowConnection);
         m_internalWindowConnection = QMetaObject::Connection();
         QEvent event(QEvent::Leave);
         QCoreApplication::sendEvent(internalWindow().data(), &event);
         setInternalWindow(nullptr);
     }
     if (decoration()) {
         QHoverEvent event(QEvent::HoverLeave, QPointF(), QPointF());
         QCoreApplication::instance()->sendEvent(decoration()->decoration(), &event);
         setDecoration(nullptr);
     }
     if (focus()) {
         if (AbstractClient *c = qobject_cast<AbstractClient*>(focus().data())) {
             c->leaveEvent();
         }
         disconnect(m_focusGeometryConnection);
         m_focusGeometryConnection = QMetaObject::Connection();
         breakPointerConstraints(focus()->surface());
         disconnectPointerConstraintsConnection();
         setFocus(nullptr);
     }
     waylandServer()->seat()->setFocusedPointerSurface(nullptr);
 }
 
 void PointerInputRedirection::processMotion(const QPointF &pos, uint32_t time, LibInput::Device *device)
 {
     processMotion(pos, QSizeF(), QSizeF(), time, 0, device);
 }
 
 class PositionUpdateBlocker
 {
 public:
     PositionUpdateBlocker(PointerInputRedirection *pointer)
         : m_pointer(pointer)
     {
         s_counter++;
     }
     ~PositionUpdateBlocker() {
         s_counter--;
         if (s_counter == 0) {
             if (!s_scheduledPositions.isEmpty()) {
                 const auto pos = s_scheduledPositions.takeFirst();
                 m_pointer->processMotion(pos.pos, pos.delta, pos.deltaNonAccelerated, pos.time, pos.timeUsec, nullptr);
             }
         }
     }
 
     static bool isPositionBlocked() {
         return s_counter > 0;
     }
 
     static void schedulePosition(const QPointF &pos, const QSizeF &delta, const QSizeF &deltaNonAccelerated, uint32_t time, quint64 timeUsec) {
         s_scheduledPositions.append({pos, delta, deltaNonAccelerated, time, timeUsec});
     }
 
 private:
     static int s_counter;
     struct ScheduledPosition {
         QPointF pos;
         QSizeF delta;
         QSizeF deltaNonAccelerated;
         quint32 time;
         quint64 timeUsec;
     };
     static QVector<ScheduledPosition> s_scheduledPositions;
 
     PointerInputRedirection *m_pointer;
 };
 
 int PositionUpdateBlocker::s_counter = 0;
 QVector<PositionUpdateBlocker::ScheduledPosition> PositionUpdateBlocker::s_scheduledPositions;
 
 void PointerInputRedirection::processMotion(const QPointF &pos, const QSizeF &delta, const QSizeF &deltaNonAccelerated, uint32_t time, quint64 timeUsec, LibInput::Device *device)
 {
     if (!inited()) {
         return;
     }
     if (PositionUpdateBlocker::isPositionBlocked()) {
         PositionUpdateBlocker::schedulePosition(pos, delta, deltaNonAccelerated, time, timeUsec);
         return;
     }
 
     PositionUpdateBlocker blocker(this);
     updatePosition(pos);
     MouseEvent event(QEvent::MouseMove, m_pos, Qt::NoButton, m_qtButtons,
                      input()->keyboardModifiers(), time,
                      delta, deltaNonAccelerated, timeUsec, device);
     event.setModifiersRelevantForGlobalShortcuts(input()->modifiersRelevantForGlobalShortcuts());
 
     update();
     input()->processSpies(std::bind(&InputEventSpy::pointerEvent, std::placeholders::_1, &event));
     input()->processFilters(std::bind(&InputEventFilter::pointerEvent, std::placeholders::_1, &event, 0));
 }
 
 void PointerInputRedirection::processButton(uint32_t button, InputRedirection::PointerButtonState state, uint32_t time, LibInput::Device *device)
 {
     QEvent::Type type;
     switch (state) {
     case InputRedirection::PointerButtonReleased:
         type = QEvent::MouseButtonRelease;
         break;
     case InputRedirection::PointerButtonPressed:
         type = QEvent::MouseButtonPress;
         update();
         break;
     default:
         Q_UNREACHABLE();
         return;
     }
 
     updateButton(button, state);
 
     MouseEvent event(type, m_pos, buttonToQtMouseButton(button), m_qtButtons,
                      input()->keyboardModifiers(), time, QSizeF(), QSizeF(), 0, device);
     event.setModifiersRelevantForGlobalShortcuts(input()->modifiersRelevantForGlobalShortcuts());
     event.setNativeButton(button);
 
     input()->processSpies(std::bind(&InputEventSpy::pointerEvent, std::placeholders::_1, &event));
 
     if (!inited()) {
         return;
     }
 
     input()->processFilters(std::bind(&InputEventFilter::pointerEvent, std::placeholders::_1, &event, button));
 
     if (state == InputRedirection::PointerButtonReleased) {
         update();
     }
 }
 
 void PointerInputRedirection::processAxis(InputRedirection::PointerAxis axis, qreal delta, qint32 discreteDelta,
     InputRedirection::PointerAxisSource source, uint32_t time, LibInput::Device *device)
 {
     update();
 
     emit input()->pointerAxisChanged(axis, delta);
 
     WheelEvent wheelEvent(m_pos, delta, discreteDelta,
                            (axis == InputRedirection::PointerAxisHorizontal) ? Qt::Horizontal : Qt::Vertical,
                            m_qtButtons, input()->keyboardModifiers(), source, time, device);
     wheelEvent.setModifiersRelevantForGlobalShortcuts(input()->modifiersRelevantForGlobalShortcuts());
 
     input()->processSpies(std::bind(&InputEventSpy::wheelEvent, std::placeholders::_1, &wheelEvent));
 
     if (!inited()) {
         return;
     }
     input()->processFilters(std::bind(&InputEventFilter::wheelEvent, std::placeholders::_1, &wheelEvent));
 }
 
 void PointerInputRedirection::processSwipeGestureBegin(int fingerCount, quint32 time, KWin::LibInput::Device *device)
 {
     Q_UNUSED(device)
     if (!inited()) {
         return;
     }
 
     input()->processSpies(std::bind(&InputEventSpy::swipeGestureBegin, std::placeholders::_1, fingerCount, time));
     input()->processFilters(std::bind(&InputEventFilter::swipeGestureBegin, std::placeholders::_1, fingerCount, time));
 }
 
 void PointerInputRedirection::processSwipeGestureUpdate(const QSizeF &delta, quint32 time, KWin::LibInput::Device *device)
 {
     Q_UNUSED(device)
     if (!inited()) {
         return;
     }
     update();
 
     input()->processSpies(std::bind(&InputEventSpy::swipeGestureUpdate, std::placeholders::_1, delta, time));
     input()->processFilters(std::bind(&InputEventFilter::swipeGestureUpdate, std::placeholders::_1, delta, time));
 }
 
 void PointerInputRedirection::processSwipeGestureEnd(quint32 time, KWin::LibInput::Device *device)
 {
     Q_UNUSED(device)
     if (!inited()) {
         return;
     }
     update();
 
     input()->processSpies(std::bind(&InputEventSpy::swipeGestureEnd, std::placeholders::_1, time));
     input()->processFilters(std::bind(&InputEventFilter::swipeGestureEnd, std::placeholders::_1, time));
 }
 
 void PointerInputRedirection::processSwipeGestureCancelled(quint32 time, KWin::LibInput::Device *device)
 {
     Q_UNUSED(device)
     if (!inited()) {
         return;
     }
     update();
 
     input()->processSpies(std::bind(&InputEventSpy::swipeGestureCancelled, std::placeholders::_1, time));
     input()->processFilters(std::bind(&InputEventFilter::swipeGestureCancelled, std::placeholders::_1, time));
 }
 
 void PointerInputRedirection::processPinchGestureBegin(int fingerCount, quint32 time, KWin::LibInput::Device *device)
 {
     Q_UNUSED(device)
     if (!inited()) {
         return;
     }
     update();
 
     input()->processSpies(std::bind(&InputEventSpy::pinchGestureBegin, std::placeholders::_1, fingerCount, time));
     input()->processFilters(std::bind(&InputEventFilter::pinchGestureBegin, std::placeholders::_1, fingerCount, time));
 }
 
 void PointerInputRedirection::processPinchGestureUpdate(qreal scale, qreal angleDelta, const QSizeF &delta, quint32 time, KWin::LibInput::Device *device)
 {
     Q_UNUSED(device)
     if (!inited()) {
         return;
     }
     update();
 
     input()->processSpies(std::bind(&InputEventSpy::pinchGestureUpdate, std::placeholders::_1, scale, angleDelta, delta, time));
     input()->processFilters(std::bind(&InputEventFilter::pinchGestureUpdate, std::placeholders::_1, scale, angleDelta, delta, time));
 }
 
 void PointerInputRedirection::processPinchGestureEnd(quint32 time, KWin::LibInput::Device *device)
 {
     Q_UNUSED(device)
     if (!inited()) {
         return;
     }
     update();
 
     input()->processSpies(std::bind(&InputEventSpy::pinchGestureEnd, std::placeholders::_1, time));
     input()->processFilters(std::bind(&InputEventFilter::pinchGestureEnd, std::placeholders::_1, time));
 }
 
 void PointerInputRedirection::processPinchGestureCancelled(quint32 time, KWin::LibInput::Device *device)
 {
     Q_UNUSED(device)
     if (!inited()) {
         return;
     }
     update();
 
     input()->processSpies(std::bind(&InputEventSpy::pinchGestureCancelled, std::placeholders::_1, time));
     input()->processFilters(std::bind(&InputEventFilter::pinchGestureCancelled, std::placeholders::_1, time));
 }
 
 bool PointerInputRedirection::areButtonsPressed() const
 {
     for (auto state : m_buttons) {
         if (state == InputRedirection::PointerButtonPressed) {
             return true;
         }
     }
     return false;
 }
 
 bool PointerInputRedirection::focusUpdatesBlocked()
 {
     if (!inited()) {
         return true;
     }
     if (waylandServer()->seat()->isDragPointer()) {
         // ignore during drag and drop
         return true;
     }
     if (waylandServer()->seat()->isTouchSequence()) {
         // ignore during touch operations
         return true;
     }
     if (input()->isSelectingWindow()) {
         return true;
     }
     if (areButtonsPressed()) {
         return true;
     }
     return false;
 }
 
 void PointerInputRedirection::cleanupInternalWindow(QWindow *old, QWindow *now)
 {
     disconnect(m_internalWindowConnection);
     m_internalWindowConnection = QMetaObject::Connection();
 
     if (old) {
         // leave internal window
         QEvent leaveEvent(QEvent::Leave);
         QCoreApplication::sendEvent(old, &leaveEvent);
     }
 
     if (now) {
         m_internalWindowConnection = connect(internalWindow().data(), &QWindow::visibleChanged, this,
             [this] (bool visible) {
                 if (!visible) {
                     update();
                 }
             }
         );
     }
 }
 
 void PointerInputRedirection::cleanupDecoration(Decoration::DecoratedClientImpl *old, Decoration::DecoratedClientImpl *now)
 {
     disconnect(m_decorationGeometryConnection);
     m_decorationGeometryConnection = QMetaObject::Connection();
     workspace()->updateFocusMousePosition(position().toPoint());
 
     if (old) {
         // send leave event to old decoration
         QHoverEvent event(QEvent::HoverLeave, QPointF(), QPointF());
         QCoreApplication::instance()->sendEvent(old->decoration(), &event);
     }
     if (!now) {
         // left decoration
         return;
     }
 
     waylandServer()->seat()->setFocusedPointerSurface(nullptr);
 
     auto pos = m_pos - now->client()->pos();
     QHoverEvent event(QEvent::HoverEnter, pos, pos);
     QCoreApplication::instance()->sendEvent(now->decoration(), &event);
     now->client()->processDecorationMove(pos.toPoint(), m_pos.toPoint());
 
     m_decorationGeometryConnection = connect(decoration()->client(), &AbstractClient::geometryChanged, this,
         [this] {
             // ensure maximize button gets the leave event when maximizing/restore a window, see BUG 385140
             const auto oldDeco = decoration();
             update();
             if (oldDeco &&
                     oldDeco == decoration() &&
                     !decoration()->client()->isMove() &&
                     !decoration()->client()->isResize() &&
                     !areButtonsPressed()) {
                 // position of window did not change, we need to send HoverMotion manually
                 const QPointF p = m_pos - decoration()->client()->pos();
                 QHoverEvent event(QEvent::HoverMove, p, p);
                 QCoreApplication::instance()->sendEvent(decoration()->decoration(), &event);
             }
         }, Qt::QueuedConnection);
 }
 
 static bool s_cursorUpdateBlocking = false;
 
 void PointerInputRedirection::focusUpdate(Toplevel *focusOld, Toplevel *focusNow)
 {
     if (AbstractClient *ac = qobject_cast<AbstractClient*>(focusOld)) {
         ac->leaveEvent();
         breakPointerConstraints(ac->surface());
         disconnectPointerConstraintsConnection();
     }
     disconnect(m_focusGeometryConnection);
     m_focusGeometryConnection = QMetaObject::Connection();
 
     if (AbstractClient *ac = qobject_cast<AbstractClient*>(focusNow)) {
         ac->enterEvent(m_pos.toPoint());
         workspace()->updateFocusMousePosition(m_pos.toPoint());
     }
 
     if (internalWindow()) {
         // enter internal window
         const auto pos = at()->pos();
         QEnterEvent enterEvent(pos, pos, m_pos);
         QCoreApplication::sendEvent(internalWindow().data(), &enterEvent);
     }
 
     auto seat = waylandServer()->seat();
     if (!focusNow || !focusNow->surface() || decoration()) {
         // Clean up focused pointer surface if there's no client to take focus,
         // or the pointer is on a client without surface or on a decoration.
         warpXcbOnSurfaceLeft(nullptr);
         seat->setFocusedPointerSurface(nullptr);
         return;
     }
 
     // TODO: add convenient API to update global pos together with updating focused surface
     warpXcbOnSurfaceLeft(focusNow->surface());
 
     // TODO: why? in order to reset the cursor icon?
     s_cursorUpdateBlocking = true;
     seat->setFocusedPointerSurface(nullptr);
     s_cursorUpdateBlocking = false;
 
     seat->setPointerPos(m_pos.toPoint());
     seat->setFocusedPointerSurface(focusNow->surface(), focusNow->inputTransformation());
 
     m_focusGeometryConnection = connect(focusNow, &Toplevel::geometryChanged, this,
         [this] {
             // TODO: why no assert possible?
             if (!focus()) {
                 return;
             }
             // TODO: can we check on the client instead?
             if (workspace()->moveResizeClient()) {
                 // don't update while moving
                 return;
             }
             auto seat = waylandServer()->seat();
             if (focus()->surface() != seat->focusedPointerSurface()) {
                 return;
             }
             seat->setFocusedPointerSurfaceTransformation(focus()->inputTransformation());
         }
     );
 
     m_constraintsConnection = connect(focusNow->surface(), &KWayland::Server::SurfaceInterface::pointerConstraintsChanged,
                                       this, &PointerInputRedirection::updatePointerConstraints);
     m_constraintsActivatedConnection = connect(workspace(), &Workspace::clientActivated,
                                                this, &PointerInputRedirection::updatePointerConstraints);
     updatePointerConstraints();
 }
 
 void PointerInputRedirection::breakPointerConstraints(KWayland::Server::SurfaceInterface *surface)
 {
     // cancel pointer constraints
     if (surface) {
         auto c = surface->confinedPointer();
         if (c && c->isConfined()) {
             c->setConfined(false);
         }
         auto l = surface->lockedPointer();
         if (l && l->isLocked()) {
             l->setLocked(false);
         }
     }
     disconnectConfinedPointerRegionConnection();
     m_confined = false;
     m_locked = false;
 }
 
 void PointerInputRedirection::disconnectConfinedPointerRegionConnection()
 {
     disconnect(m_confinedPointerRegionConnection);
     m_confinedPointerRegionConnection = QMetaObject::Connection();
 }
 
 void PointerInputRedirection::disconnectLockedPointerAboutToBeUnboundConnection()
 {
     disconnect(m_lockedPointerAboutToBeUnboundConnection);
     m_lockedPointerAboutToBeUnboundConnection = QMetaObject::Connection();
 }
 
 void PointerInputRedirection::disconnectPointerConstraintsConnection()
 {
     disconnect(m_constraintsConnection);
     m_constraintsConnection = QMetaObject::Connection();
 
     disconnect(m_constraintsActivatedConnection);
     m_constraintsActivatedConnection = QMetaObject::Connection();
 }
 
 template <typename T>
 static QRegion getConstraintRegion(Toplevel *t, T *constraint)
 {
     const QRegion windowShape = t->inputShape();
     const QRegion windowRegion = windowShape.isEmpty() ? QRegion(0, 0, t->clientSize().width(), t->clientSize().height()) : windowShape;
     const QRegion intersected = constraint->region().isEmpty() ? windowRegion : windowRegion.intersected(constraint->region());
     return intersected.translated(t->pos() + t->clientPos());
 }
 
 void PointerInputRedirection::setEnableConstraints(bool set)
 {
     if (m_enableConstraints == set) {
         return;
     }
     m_enableConstraints = set;
     updatePointerConstraints();
 }
 
 void PointerInputRedirection::updatePointerConstraints()
 {
     if (focus().isNull()) {
         return;
     }
     const auto s = focus()->surface();
     if (!s) {
         return;
     }
     if (s != waylandServer()->seat()->focusedPointerSurface()) {
         return;
     }
     if (!supportsWarping()) {
         return;
     }
     const bool canConstrain = m_enableConstraints && focus() == workspace()->activeClient();
     const auto cf = s->confinedPointer();
     if (cf) {
         if (cf->isConfined()) {
             if (!canConstrain) {
                 cf->setConfined(false);
                 m_confined = false;
                 disconnectConfinedPointerRegionConnection();
             }
             return;
         }
         const QRegion r = getConstraintRegion(focus().data(), cf.data());
         if (canConstrain && r.contains(m_pos.toPoint())) {
             cf->setConfined(true);
             m_confined = true;
             m_confinedPointerRegionConnection = connect(cf.data(), &KWayland::Server::ConfinedPointerInterface::regionChanged, this,
                 [this] {
                     if (!focus()) {
                         return;
                     }
                     const auto s = focus()->surface();
                     if (!s) {
                         return;
                     }
                     const auto cf = s->confinedPointer();
                     if (!getConstraintRegion(focus().data(), cf.data()).contains(m_pos.toPoint())) {
                         // pointer no longer in confined region, break the confinement
                         cf->setConfined(false);
                         m_confined = false;
                     } else {
                         if (!cf->isConfined()) {
                             cf->setConfined(true);
                             m_confined = true;
                         }
                     }
                 }
             );
             return;
         }
     } else {
         m_confined = false;
         disconnectConfinedPointerRegionConnection();
     }
     const auto lock = s->lockedPointer();
     if (lock) {
         if (lock->isLocked()) {
             if (!canConstrain) {
                 const auto hint = lock->cursorPositionHint();
                 lock->setLocked(false);
                 m_locked = false;
                 disconnectLockedPointerAboutToBeUnboundConnection();
                 if (! (hint.x() < 0 || hint.y() < 0) && focus()) {
                     processMotion(focus()->pos() - focus()->clientContentPos() + hint, waylandServer()->seat()->timestamp());
                 }
             }
             return;
         }
         const QRegion r = getConstraintRegion(focus().data(), lock.data());
         if (canConstrain && r.contains(m_pos.toPoint())) {
             lock->setLocked(true);
             m_locked = true;
 
             // The client might cancel pointer locking from its side by unbinding the LockedPointerInterface.
             // In this case the cached cursor position hint must be fetched before the resource goes away
             m_lockedPointerAboutToBeUnboundConnection = connect(lock.data(), &KWayland::Server::LockedPointerInterface::aboutToBeUnbound, this,
                 [this, lock]() {
                     const auto hint = lock->cursorPositionHint();
                     if (hint.x() < 0 || hint.y() < 0 || !focus()) {
                         return;
                     }
                     auto globalHint = focus()->pos() - focus()->clientContentPos() + hint;
 
                     // When the resource finally goes away, reposition the cursor according to the hint
                     connect(lock.data(), &KWayland::Server::LockedPointerInterface::unbound, this,
                         [this, globalHint]() {
                             processMotion(globalHint, waylandServer()->seat()->timestamp());
                     });
                 }
             );
             // TODO: connect to region change - is it needed at all? If the pointer is locked it's always in the region
         }
     } else {
         m_locked = false;
         disconnectLockedPointerAboutToBeUnboundConnection();
     }
 }
 
 void PointerInputRedirection::warpXcbOnSurfaceLeft(KWayland::Server::SurfaceInterface *newSurface)
 {
     auto xc = waylandServer()->xWaylandConnection();
     if (!xc) {
         // No XWayland, no point in warping the x cursor
         return;
     }
     const auto c = kwinApp()->x11Connection();
     if (!c) {
         return;
     }
     static bool s_hasXWayland119 = xcb_get_setup(c)->release_number >= 11900000;
     if (s_hasXWayland119) {
         return;
     }
     if (newSurface && newSurface->client() == xc) {
         // new window is an X window
         return;
     }
     auto s = waylandServer()->seat()->focusedPointerSurface();
     if (!s || s->client() != xc) {
         // pointer was not on an X window
         return;
     }
     // warp pointer to 0/0 to trigger leave events on previously focused X window
     xcb_warp_pointer(c, XCB_WINDOW_NONE, kwinApp()->x11RootWindow(), 0, 0, 0, 0, 0, 0),
     xcb_flush(c);
 }
 
 QPointF PointerInputRedirection::applyPointerConfinement(const QPointF &pos) const
 {
     if (!focus()) {
         return pos;
     }
     auto s = focus()->surface();
     if (!s) {
         return pos;
     }
     auto cf = s->confinedPointer();
     if (!cf) {
         return pos;
     }
     if (!cf->isConfined()) {
         return pos;
     }
 
     const QRegion confinementRegion = getConstraintRegion(focus().data(), cf.data());
     if (confinementRegion.contains(pos.toPoint())) {
         return pos;
     }
     QPointF p = pos;
     // allow either x or y to pass
     p = QPointF(m_pos.x(), pos.y());
     if (confinementRegion.contains(p.toPoint())) {
         return p;
     }
     p = QPointF(pos.x(), m_pos.y());
     if (confinementRegion.contains(p.toPoint())) {
         return p;
     }
 
     return m_pos;
 }
 
 void PointerInputRedirection::updatePosition(const QPointF &pos)
 {
     if (m_locked) {
         // locked pointer should not move
         return;
     }
     // verify that at least one screen contains the pointer position
     QPointF p = pos;
     if (!screenContainsPos(p)) {
         const QRectF unitedScreensGeometry = screens()->geometry();
         p = confineToBoundingBox(p, unitedScreensGeometry);
         if (!screenContainsPos(p)) {
             const QRectF currentScreenGeometry = screens()->geometry(screens()->number(m_pos.toPoint()));
             p = confineToBoundingBox(p, currentScreenGeometry);
         }
     }
     p = applyPointerConfinement(p);
     if (p == m_pos) {
         // didn't change due to confinement
         return;
     }
     // verify screen confinement
     if (!screenContainsPos(p)) {
         return;
     }
     m_pos = p;
     emit input()->globalPointerChanged(m_pos);
 }
 
 void PointerInputRedirection::updateButton(uint32_t button, InputRedirection::PointerButtonState state)
 {
     m_buttons[button] = state;
 
     // update Qt buttons
     m_qtButtons = Qt::NoButton;
     for (auto it = m_buttons.constBegin(); it != m_buttons.constEnd(); ++it) {
         if (it.value() == InputRedirection::PointerButtonReleased) {
             continue;
         }
         m_qtButtons |= buttonToQtMouseButton(it.key());
     }
 
     emit input()->pointerButtonStateChanged(button, state);
 }
 
 void PointerInputRedirection::warp(const QPointF &pos)
 {
     if (supportsWarping()) {
         kwinApp()->platform()->warpPointer(pos);
         processMotion(pos, waylandServer()->seat()->timestamp());
     }
 }
 
 bool PointerInputRedirection::supportsWarping() const
 {
     if (!inited()) {
         return false;
     }
     if (m_supportsWarping) {
         return true;
     }
     if (kwinApp()->platform()->supportsPointerWarping()) {
         return true;
     }
     return false;
 }
 
 void PointerInputRedirection::updateAfterScreenChange()
 {
     if (!inited()) {
         return;
     }
     if (screenContainsPos(m_pos)) {
         // pointer still on a screen
         return;
     }
     // pointer no longer on a screen, reposition to closes screen
     const QPointF pos = screens()->geometry(screens()->number(m_pos.toPoint())).center();
     // TODO: better way to get timestamps
     processMotion(pos, waylandServer()->seat()->timestamp());
 }
 
 QImage PointerInputRedirection::cursorImage() const
 {
     if (!inited()) {
         return QImage();
     }
     return m_cursor->image();
 }
 
 QPoint PointerInputRedirection::cursorHotSpot() const
 {
     if (!inited()) {
         return QPoint();
     }
     return m_cursor->hotSpot();
 }
 
 void PointerInputRedirection::markCursorAsRendered()
 {
     if (!inited()) {
         return;
     }
     m_cursor->markAsRendered();
 }
 
 QPointF PointerInputRedirection::position() const
 {
     return m_pos.toPoint();
 }
 
 void PointerInputRedirection::setEffectsOverrideCursor(Qt::CursorShape shape)
 {
     if (!inited()) {
         return;
     }
     // current pointer focus window should get a leave event
     update();
     m_cursor->setEffectsOverrideCursor(shape);
 }
 
 void PointerInputRedirection::removeEffectsOverrideCursor()
 {
     if (!inited()) {
         return;
     }
     // cursor position might have changed while there was an effect in place
     update();
     m_cursor->removeEffectsOverrideCursor();
 }
 
 void PointerInputRedirection::setWindowSelectionCursor(const QByteArray &shape)
 {
     if (!inited()) {
         return;
     }
     // send leave to current pointer focus window
     updateToReset();
     m_cursor->setWindowSelectionCursor(shape);
 }
 
 void PointerInputRedirection::removeWindowSelectionCursor()
 {
     if (!inited()) {
         return;
     }
     update();
     m_cursor->removeWindowSelectionCursor();
 }
 
 CursorImage::CursorImage(PointerInputRedirection *parent)
     : QObject(parent)
     , m_pointer(parent)
 {
     connect(waylandServer()->seat(), &KWayland::Server::SeatInterface::focusedPointerChanged, this, &CursorImage::update);
     connect(waylandServer()->seat(), &KWayland::Server::SeatInterface::dragStarted, this, &CursorImage::updateDrag);
     connect(waylandServer()->seat(), &KWayland::Server::SeatInterface::dragEnded, this,
         [this] {
             disconnect(m_drag.connection);
             reevaluteSource();
         }
     );
     if (waylandServer()->hasScreenLockerIntegration()) {
         connect(ScreenLocker::KSldApp::self(), &ScreenLocker::KSldApp::lockStateChanged, this, &CursorImage::reevaluteSource);
     }
     connect(m_pointer, &PointerInputRedirection::decorationChanged, this, &CursorImage::updateDecoration);
     // connect the move resize of all window
     auto setupMoveResizeConnection = [this] (AbstractClient *c) {
         connect(c, &AbstractClient::moveResizedChanged, this, &CursorImage::updateMoveResize);
         connect(c, &AbstractClient::moveResizeCursorChanged, this, &CursorImage::updateMoveResize);
     };
     const auto clients = workspace()->allClientList();
     std::for_each(clients.begin(), clients.end(), setupMoveResizeConnection);
     connect(workspace(), &Workspace::clientAdded, this, setupMoveResizeConnection);
     connect(waylandServer(), &WaylandServer::shellClientAdded, this, setupMoveResizeConnection);
     loadThemeCursor(Qt::ArrowCursor, &m_fallbackCursor);
     if (m_cursorTheme) {
         connect(m_cursorTheme, &WaylandCursorTheme::themeChanged, this,
             [this] {
                 m_cursors.clear();
                 m_cursorsByName.clear();
                 loadThemeCursor(Qt::ArrowCursor, &m_fallbackCursor);
                 updateDecorationCursor();
                 updateMoveResize();
                 // TODO: update effects
             }
         );
     }
     m_surfaceRenderedTimer.start();
 }
 
 CursorImage::~CursorImage() = default;
 
 void CursorImage::markAsRendered()
 {
     if (m_currentSource == CursorSource::DragAndDrop) {
         // always sending a frame rendered to the drag icon surface to not freeze QtWayland (see https://bugreports.qt.io/browse/QTBUG-51599 )
         if (auto ddi = waylandServer()->seat()->dragSource()) {
             if (auto s = ddi->icon()) {
                 s->frameRendered(m_surfaceRenderedTimer.elapsed());
             }
         }
         auto p = waylandServer()->seat()->dragPointer();
         if (!p) {
             return;
         }
         auto c = p->cursor();
         if (!c) {
             return;
         }
         auto cursorSurface = c->surface();
         if (cursorSurface.isNull()) {
             return;
         }
         cursorSurface->frameRendered(m_surfaceRenderedTimer.elapsed());
         return;
     }
     if (m_currentSource != CursorSource::LockScreen && m_currentSource != CursorSource::PointerSurface) {
         return;
     }
     auto p = waylandServer()->seat()->focusedPointer();
     if (!p) {
         return;
     }
     auto c = p->cursor();
     if (!c) {
         return;
     }
     auto cursorSurface = c->surface();
     if (cursorSurface.isNull()) {
         return;
     }
     cursorSurface->frameRendered(m_surfaceRenderedTimer.elapsed());
 }
 
 void CursorImage::update()
 {
     if (s_cursorUpdateBlocking) {
         return;
     }
     using namespace KWayland::Server;
     disconnect(m_serverCursor.connection);
     auto p = waylandServer()->seat()->focusedPointer();
     if (p) {
         m_serverCursor.connection = connect(p, &PointerInterface::cursorChanged, this, &CursorImage::updateServerCursor);
     } else {
         m_serverCursor.connection = QMetaObject::Connection();
         reevaluteSource();
     }
 }
 
 void CursorImage::updateDecoration()
 {
     disconnect(m_decorationConnection);
     auto deco = m_pointer->decoration();
     AbstractClient *c = deco.isNull() ? nullptr : deco->client();
     if (c) {
         m_decorationConnection = connect(c, &AbstractClient::moveResizeCursorChanged, this, &CursorImage::updateDecorationCursor);
     } else {
         m_decorationConnection = QMetaObject::Connection();
     }
     updateDecorationCursor();
 }
 
 void CursorImage::updateDecorationCursor()
 {
     m_decorationCursor.image = QImage();
     m_decorationCursor.hotSpot = QPoint();
 
     auto deco = m_pointer->decoration();
     if (AbstractClient *c = deco.isNull() ? nullptr : deco->client()) {
         loadThemeCursor(c->cursor(), &m_decorationCursor);
         if (m_currentSource == CursorSource::Decoration) {
             emit changed();
         }
     }
     reevaluteSource();
 }
 
 void CursorImage::updateMoveResize()
 {
     m_moveResizeCursor.image = QImage();
     m_moveResizeCursor.hotSpot = QPoint();
     if (AbstractClient *c = workspace()->moveResizeClient()) {
         loadThemeCursor(c->cursor(), &m_moveResizeCursor);
         if (m_currentSource == CursorSource::MoveResize) {
             emit changed();
         }
     }
     reevaluteSource();
 }
 
 void CursorImage::updateServerCursor()
 {
     m_serverCursor.image = QImage();
     m_serverCursor.hotSpot = QPoint();
     reevaluteSource();
     const bool needsEmit = m_currentSource == CursorSource::LockScreen || m_currentSource == CursorSource::PointerSurface;
     auto p = waylandServer()->seat()->focusedPointer();
     if (!p) {
         if (needsEmit) {
             emit changed();
         }
         return;
     }
     auto c = p->cursor();
     if (!c) {
         if (needsEmit) {
             emit changed();
         }
         return;
     }
     auto cursorSurface = c->surface();
     if (cursorSurface.isNull()) {
         if (needsEmit) {
             emit changed();
         }
         return;
     }
     auto buffer = cursorSurface.data()->buffer();
     if (!buffer) {
         if (needsEmit) {
             emit changed();
         }
         return;
     }
     m_serverCursor.hotSpot = c->hotspot();
     m_serverCursor.image = buffer->data().copy();
     m_serverCursor.image.setDevicePixelRatio(cursorSurface->scale());
     if (needsEmit) {
         emit changed();
     }
 }
 
 void CursorImage::loadTheme()
 {
     if (m_cursorTheme) {
         return;
     }
     // check whether we can create it
     if (waylandServer()->internalShmPool()) {
         m_cursorTheme = new WaylandCursorTheme(waylandServer()->internalShmPool(), this);
         connect(waylandServer(), &WaylandServer::terminatingInternalClientConnection, this,
             [this] {
                 delete m_cursorTheme;
                 m_cursorTheme = nullptr;
             }
         );
     }
 }
 
 void CursorImage::setEffectsOverrideCursor(Qt::CursorShape shape)
 {
     loadThemeCursor(shape, &m_effectsCursor);
     if (m_currentSource == CursorSource::EffectsOverride) {
         emit changed();
     }
     reevaluteSource();
 }
 
 void CursorImage::removeEffectsOverrideCursor()
 {
     reevaluteSource();
 }
 
 void CursorImage::setWindowSelectionCursor(const QByteArray &shape)
 {
     if (shape.isEmpty()) {
         loadThemeCursor(Qt::CrossCursor, &m_windowSelectionCursor);
     } else {
         loadThemeCursor(shape, &m_windowSelectionCursor);
     }
     if (m_currentSource == CursorSource::WindowSelector) {
         emit changed();
     }
     reevaluteSource();
 }
 
 void CursorImage::removeWindowSelectionCursor()
 {
     reevaluteSource();
 }
 
 void CursorImage::updateDrag()
 {
     using namespace KWayland::Server;
     disconnect(m_drag.connection);
     m_drag.cursor.image = QImage();
     m_drag.cursor.hotSpot = QPoint();
     reevaluteSource();
     if (auto p = waylandServer()->seat()->dragPointer()) {
         m_drag.connection = connect(p, &PointerInterface::cursorChanged, this, &CursorImage::updateDragCursor);
     } else {
         m_drag.connection = QMetaObject::Connection();
     }
     updateDragCursor();
 }
 
 void CursorImage::updateDragCursor()
 {
     m_drag.cursor.image = QImage();
     m_drag.cursor.hotSpot = QPoint();
     const bool needsEmit = m_currentSource == CursorSource::DragAndDrop;
     QImage additionalIcon;
     if (auto ddi = waylandServer()->seat()->dragSource()) {
         if (auto dragIcon = ddi->icon()) {
             if (auto buffer = dragIcon->buffer()) {
                 additionalIcon = buffer->data().copy();
             }
         }
     }
     auto p = waylandServer()->seat()->dragPointer();
     if (!p) {
         if (needsEmit) {
             emit changed();
         }
         return;
     }
     auto c = p->cursor();
     if (!c) {
         if (needsEmit) {
             emit changed();
         }
         return;
     }
     auto cursorSurface = c->surface();
     if (cursorSurface.isNull()) {
         if (needsEmit) {
             emit changed();
         }
         return;
     }
     auto buffer = cursorSurface.data()->buffer();
     if (!buffer) {
         if (needsEmit) {
             emit changed();
         }
         return;
     }
     m_drag.cursor.hotSpot = c->hotspot();
     m_drag.cursor.image = buffer->data().copy();
     if (needsEmit) {
         emit changed();
     }
     // TODO: add the cursor image
 }
 
 void CursorImage::loadThemeCursor(CursorShape shape, Image *image)
 {
     loadThemeCursor(shape, m_cursors, image);
 }
 
 void CursorImage::loadThemeCursor(const QByteArray &shape, Image *image)
 {
     loadThemeCursor(shape, m_cursorsByName, image);
 }
 
 template <typename T>
 void CursorImage::loadThemeCursor(const T &shape, QHash<T, Image> &cursors, Image *image)
 {
     loadTheme();
     if (!m_cursorTheme) {
         return;
     }
     auto it = cursors.constFind(shape);
     if (it == cursors.constEnd()) {
         image->image = QImage();
         image->hotSpot = QPoint();
         wl_cursor_image *cursor = m_cursorTheme->get(shape);
         if (!cursor) {
             return;
         }
         wl_buffer *b = wl_cursor_image_get_buffer(cursor);
         if (!b) {
             return;
         }
         waylandServer()->internalClientConection()->flush();
         waylandServer()->dispatch();
         auto buffer = KWayland::Server::BufferInterface::get(waylandServer()->internalConnection()->getResource(KWayland::Client::Buffer::getId(b)));
         if (!buffer) {
             return;
         }
         auto scale = screens()->maxScale();
         int hotSpotX = qRound(cursor->hotspot_x / scale);
         int hotSpotY = qRound(cursor->hotspot_y / scale);
         QImage img = buffer->data().copy();
         img.setDevicePixelRatio(scale);
         it = decltype(it)(cursors.insert(shape, {img, QPoint(hotSpotX, hotSpotY)}));
     }
     image->hotSpot = it.value().hotSpot;
     image->image = it.value().image;
 }
 
 void CursorImage::reevaluteSource()
 {
     if (waylandServer()->seat()->isDragPointer()) {
         // TODO: touch drag?
         setSource(CursorSource::DragAndDrop);
         return;
     }
     if (waylandServer()->isScreenLocked()) {
         setSource(CursorSource::LockScreen);
         return;
     }
     if (input()->isSelectingWindow()) {
         setSource(CursorSource::WindowSelector);
         return;
     }
     if (effects && static_cast<EffectsHandlerImpl*>(effects)->isMouseInterception()) {
         setSource(CursorSource::EffectsOverride);
         return;
     }
     if (workspace() && workspace()->moveResizeClient()) {
         setSource(CursorSource::MoveResize);
         return;
     }
     if (!m_pointer->decoration().isNull()) {
         setSource(CursorSource::Decoration);
         return;
     }
     if (!m_pointer->focus().isNull() && waylandServer()->seat()->focusedPointer()) {
         setSource(CursorSource::PointerSurface);
         return;
     }
     setSource(CursorSource::Fallback);
 }
 
 void CursorImage::setSource(CursorSource source)
 {
     if (m_currentSource == source) {
         return;
     }
     m_currentSource = source;
     emit changed();
 }
 
 QImage CursorImage::image() const
 {
     switch (m_currentSource) {
     case CursorSource::EffectsOverride:
         return m_effectsCursor.image;
     case CursorSource::MoveResize:
         return m_moveResizeCursor.image;
     case CursorSource::LockScreen:
     case CursorSource::PointerSurface:
         // lockscreen also uses server cursor image
         return m_serverCursor.image;
     case CursorSource::Decoration:
         return m_decorationCursor.image;
     case CursorSource::DragAndDrop:
         return m_drag.cursor.image;
     case CursorSource::Fallback:
         return m_fallbackCursor.image;
     case CursorSource::WindowSelector:
         return m_windowSelectionCursor.image;
     default:
         Q_UNREACHABLE();
     }
 }
 
 QPoint CursorImage::hotSpot() const
 {
     switch (m_currentSource) {
     case CursorSource::EffectsOverride:
         return m_effectsCursor.hotSpot;
     case CursorSource::MoveResize:
         return m_moveResizeCursor.hotSpot;
     case CursorSource::LockScreen:
     case CursorSource::PointerSurface:
         // lockscreen also uses server cursor image
         return m_serverCursor.hotSpot;
     case CursorSource::Decoration:
         return m_decorationCursor.hotSpot;
     case CursorSource::DragAndDrop:
         return m_drag.cursor.hotSpot;
     case CursorSource::Fallback:
         return m_fallbackCursor.hotSpot;
     case CursorSource::WindowSelector:
         return m_windowSelectionCursor.hotSpot;
     default:
         Q_UNREACHABLE();
     }
 }
 
 }