diff --git a/abstract_client.cpp b/abstract_client.cpp
index a15989a5e..91538e27f 100644
--- a/abstract_client.cpp
+++ b/abstract_client.cpp
@@ -1,1601 +1,1630 @@
 /********************************************************************
  KWin - the KDE window manager
  This file is part of the KDE project.
 
 Copyright (C) 2015 Martin Gräßlin <mgraesslin@kde.org>
 
 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 "abstract_client.h"
 #include "decorations/decoratedclient.h"
 #include "decorations/decorationpalette.h"
 #include "decorations/decorationbridge.h"
 #include "cursor.h"
 #include "effects.h"
 #include "focuschain.h"
 #include "outline.h"
 #include "screens.h"
 #ifdef KWIN_BUILD_TABBOX
 #include "tabbox.h"
 #endif
 #include "screenedge.h"
 #include "tabgroup.h"
 #include "useractions.h"
 #include "workspace.h"
 
 #include "wayland_server.h"
 #include <KWayland/Server/plasmawindowmanagement_interface.h>
 
 #include <KDecoration2/Decoration>
 
 #include <QMouseEvent>
 #include <QStyleHints>
 
 namespace KWin
 {
 
 QHash<QString, std::weak_ptr<Decoration::DecorationPalette>> AbstractClient::s_palettes;
 std::shared_ptr<Decoration::DecorationPalette> AbstractClient::s_defaultPalette;
 
 AbstractClient::AbstractClient()
     : Toplevel()
 #ifdef KWIN_BUILD_TABBOX
     , m_tabBoxClient(QSharedPointer<TabBox::TabBoxClientImpl>(new TabBox::TabBoxClientImpl(this)))
 #endif
     , m_colorScheme(QStringLiteral("kdeglobals"))
 {
     connect(this, &AbstractClient::geometryShapeChanged, this, &AbstractClient::geometryChanged);
     auto signalMaximizeChanged = static_cast<void (AbstractClient::*)(KWin::AbstractClient*, MaximizeMode)>(&AbstractClient::clientMaximizedStateChanged);
     connect(this, signalMaximizeChanged, this, &AbstractClient::geometryChanged);
     connect(this, &AbstractClient::clientStepUserMovedResized,   this, &AbstractClient::geometryChanged);
     connect(this, &AbstractClient::clientStartUserMovedResized,  this, &AbstractClient::moveResizedChanged);
     connect(this, &AbstractClient::clientFinishUserMovedResized, this, &AbstractClient::moveResizedChanged);
     connect(this, &AbstractClient::clientStartUserMovedResized,  this, &AbstractClient::removeCheckScreenConnection);
     connect(this, &AbstractClient::clientFinishUserMovedResized, this, &AbstractClient::setupCheckScreenConnection);
 
     connect(this, &AbstractClient::paletteChanged, this, &AbstractClient::triggerDecorationRepaint);
 
     connect(Decoration::DecorationBridge::self(), &QObject::destroyed, this, &AbstractClient::destroyDecoration);
 }
 
 AbstractClient::~AbstractClient()
 {
     assert(m_blockGeometryUpdates == 0);
     Q_ASSERT(m_decoration.decoration == nullptr);
 }
 
 void AbstractClient::updateMouseGrab()
 {
 }
 
 bool AbstractClient::belongToSameApplication(const AbstractClient *c1, const AbstractClient *c2, bool active_hack)
 {
     return c1->belongsToSameApplication(c2, active_hack);
 }
 
 bool AbstractClient::isTransient() const
 {
     return false;
 }
 
 TabGroup *AbstractClient::tabGroup() const
 {
     return nullptr;
 }
 
 bool AbstractClient::untab(const QRect &toGeometry, bool clientRemoved)
 {
     Q_UNUSED(toGeometry)
     Q_UNUSED(clientRemoved)
     return false;
 }
 
 bool AbstractClient::isCurrentTab() const
 {
     return true;
 }
 
 xcb_timestamp_t AbstractClient::userTime() const
 {
     return XCB_TIME_CURRENT_TIME;
 }
 
 void AbstractClient::setSkipSwitcher(bool set)
 {
     set = rules()->checkSkipSwitcher(set);
     if (set == skipSwitcher())
         return;
     m_skipSwitcher = set;
     updateWindowRules(Rules::SkipSwitcher);
     emit skipSwitcherChanged();
 }
 
 void AbstractClient::setSkipPager(bool b)
 {
     b = rules()->checkSkipPager(b);
     if (b == skipPager())
         return;
     m_skipPager = b;
     doSetSkipPager();
     info->setState(b ? NET::SkipPager : NET::States(0), NET::SkipPager);
     updateWindowRules(Rules::SkipPager);
     emit skipPagerChanged();
 }
 
 void AbstractClient::doSetSkipPager()
 {
 }
 
 void AbstractClient::setSkipTaskbar(bool b)
 {
     int was_wants_tab_focus = wantsTabFocus();
     if (b == skipTaskbar())
         return;
     m_skipTaskbar = b;
     doSetSkipTaskbar();
     updateWindowRules(Rules::SkipTaskbar);
     if (was_wants_tab_focus != wantsTabFocus()) {
         FocusChain::self()->update(this, isActive() ? FocusChain::MakeFirst : FocusChain::Update);
     }
     emit skipTaskbarChanged();
 }
 
 void AbstractClient::setOriginalSkipTaskbar(bool b)
 {
     m_originalSkipTaskbar = rules()->checkSkipTaskbar(b);
     setSkipTaskbar(m_originalSkipTaskbar);
 }
 
 void AbstractClient::doSetSkipTaskbar()
 {
 
 }
 
 void AbstractClient::setIcon(const QIcon &icon)
 {
     m_icon = icon;
     emit iconChanged();
 }
 
 void AbstractClient::setActive(bool act)
 {
     if (m_active == act) {
         return;
     }
     m_active = act;
     const int ruledOpacity = m_active
                              ? rules()->checkOpacityActive(qRound(opacity() * 100.0))
                              : rules()->checkOpacityInactive(qRound(opacity() * 100.0));
     setOpacity(ruledOpacity / 100.0);
     workspace()->setActiveClient(act ? this : NULL);
 
     if (!m_active)
         cancelAutoRaise();
 
     if (!m_active && shadeMode() == ShadeActivated)
         setShade(ShadeNormal);
 
     StackingUpdatesBlocker blocker(workspace());
     workspace()->updateClientLayer(this);   // active windows may get different layer
     auto mainclients = mainClients();
     for (auto it = mainclients.constBegin();
             it != mainclients.constEnd();
             ++it)
         if ((*it)->isFullScreen())  // fullscreens go high even if their transient is active
             workspace()->updateClientLayer(*it);
 
     doSetActive();
     emit activeChanged();
     updateMouseGrab();
 }
 
 void AbstractClient::doSetActive()
 {
 }
 
 Layer AbstractClient::layer() const
 {
     if (m_layer == UnknownLayer)
         const_cast< AbstractClient* >(this)->m_layer = belongsToLayer();
     return m_layer;
 }
 
 void AbstractClient::updateLayer()
 {
     if (layer() == belongsToLayer())
         return;
     StackingUpdatesBlocker blocker(workspace());
     invalidateLayer(); // invalidate, will be updated when doing restacking
     for (auto it = transients().constBegin(),
                                   end = transients().constEnd(); it != end; ++it)
         (*it)->updateLayer();
 }
 
 void AbstractClient::invalidateLayer()
 {
     m_layer = UnknownLayer;
 }
 
 Layer AbstractClient::belongsToLayer() const
 {
     // NOTICE while showingDesktop, desktops move to the AboveLayer
     // (interchangeable w/ eg. yakuake etc. which will at first remain visible)
     // and the docks move into the NotificationLayer (which is between Above- and
     // ActiveLayer, so that active fullscreen windows will still cover everything)
     // Since the desktop is also activated, nothing should be in the ActiveLayer, though
     if (isDesktop())
         return workspace()->showingDesktop() ? AboveLayer : DesktopLayer;
     if (isSplash())          // no damn annoying splashscreens
         return NormalLayer; // getting in the way of everything else
     if (isDock()) {
         if (workspace()->showingDesktop())
             return NotificationLayer;
         return layerForDock();
     }
     if (isOnScreenDisplay())
         return OnScreenDisplayLayer;
     if (isNotification())
         return NotificationLayer;
     if (workspace()->showingDesktop() && belongsToDesktop()) {
         return AboveLayer;
     }
     if (keepBelow())
         return BelowLayer;
     if (isActiveFullScreen())
         return ActiveLayer;
     if (keepAbove())
         return AboveLayer;
 
     return NormalLayer;
 }
 
 bool AbstractClient::belongsToDesktop() const
 {
     return false;
 }
 
 Layer AbstractClient::layerForDock() const
 {
     // slight hack for the 'allow window to cover panel' Kicker setting
     // don't move keepbelow docks below normal window, but only to the same
     // layer, so that both may be raised to cover the other
     if (keepBelow())
         return NormalLayer;
     if (keepAbove()) // slight hack for the autohiding panels
         return AboveLayer;
     return DockLayer;
 }
 
 void AbstractClient::setKeepAbove(bool b)
 {
     b = rules()->checkKeepAbove(b);
     if (b && !rules()->checkKeepBelow(false))
         setKeepBelow(false);
     if (b == keepAbove()) {
         // force hint change if different
         if (info && bool(info->state() & NET::KeepAbove) != keepAbove())
             info->setState(keepAbove() ? NET::KeepAbove : NET::States(0), NET::KeepAbove);
         return;
     }
     m_keepAbove = b;
     if (info) {
         info->setState(keepAbove() ? NET::KeepAbove : NET::States(0), NET::KeepAbove);
     }
     workspace()->updateClientLayer(this);
     updateWindowRules(Rules::Above);
 
     doSetKeepAbove();
     emit keepAboveChanged(m_keepAbove);
 }
 
 void AbstractClient::doSetKeepAbove()
 {
 }
 
 void AbstractClient::setKeepBelow(bool b)
 {
     b = rules()->checkKeepBelow(b);
     if (b && !rules()->checkKeepAbove(false))
         setKeepAbove(false);
     if (b == keepBelow()) {
         // force hint change if different
         if (info && bool(info->state() & NET::KeepBelow) != keepBelow())
             info->setState(keepBelow() ? NET::KeepBelow : NET::States(0), NET::KeepBelow);
         return;
     }
     m_keepBelow = b;
     if (info) {
         info->setState(keepBelow() ? NET::KeepBelow : NET::States(0), NET::KeepBelow);
     }
     workspace()->updateClientLayer(this);
     updateWindowRules(Rules::Below);
 
     doSetKeepBelow();
     emit keepBelowChanged(m_keepBelow);
 }
 
 void AbstractClient::doSetKeepBelow()
 {
 }
 
 void AbstractClient::startAutoRaise()
 {
     delete m_autoRaiseTimer;
     m_autoRaiseTimer = new QTimer(this);
     connect(m_autoRaiseTimer, &QTimer::timeout, this, &AbstractClient::autoRaise);
     m_autoRaiseTimer->setSingleShot(true);
     m_autoRaiseTimer->start(options->autoRaiseInterval());
 }
 
 void AbstractClient::cancelAutoRaise()
 {
     delete m_autoRaiseTimer;
     m_autoRaiseTimer = nullptr;
 }
 
 void AbstractClient::autoRaise()
 {
     workspace()->raiseClient(this);
     cancelAutoRaise();
 }
 
 bool AbstractClient::wantsTabFocus() const
 {
     return (isNormalWindow() || isDialog()) && wantsInput();
 }
 
 bool AbstractClient::isSpecialWindow() const
 {
     // TODO
     return isDesktop() || isDock() || isSplash() || isToolbar() || isNotification() || isOnScreenDisplay();
 }
 
 void AbstractClient::demandAttention(bool set)
 {
     if (isActive())
         set = false;
     if (m_demandsAttention == set)
         return;
     m_demandsAttention = set;
     if (info) {
         info->setState(set ? NET::DemandsAttention : NET::States(0), NET::DemandsAttention);
     }
     workspace()->clientAttentionChanged(this, set);
     emit demandsAttentionChanged();
 }
 
 void AbstractClient::setDesktop(int desktop)
 {
     const int numberOfDesktops = VirtualDesktopManager::self()->count();
     if (desktop != NET::OnAllDesktops)   // Do range check
         desktop = qMax(1, qMin(numberOfDesktops, desktop));
     desktop = qMin(numberOfDesktops, rules()->checkDesktop(desktop));
     if (m_desktop == desktop)
         return;
 
     int was_desk = m_desktop;
     const bool wasOnCurrentDesktop = isOnCurrentDesktop();
     m_desktop = desktop;
 
     if (info) {
         info->setDesktop(desktop);
     }
     if ((was_desk == NET::OnAllDesktops) != (desktop == NET::OnAllDesktops)) {
         // onAllDesktops changed
         workspace()->updateOnAllDesktopsOfTransients(this);
     }
 
     auto transients_stacking_order = workspace()->ensureStackingOrder(transients());
     for (auto it = transients_stacking_order.constBegin();
             it != transients_stacking_order.constEnd();
             ++it)
         (*it)->setDesktop(desktop);
 
     if (isModal())  // if a modal dialog is moved, move the mainwindow with it as otherwise
         // the (just moved) modal dialog will confusingly return to the mainwindow with
         // the next desktop change
     {
         foreach (AbstractClient * c2, mainClients())
         c2->setDesktop(desktop);
     }
 
     doSetDesktop(desktop, was_desk);
 
     FocusChain::self()->update(this, FocusChain::MakeFirst);
     updateWindowRules(Rules::Desktop);
 
     emit desktopChanged();
     if (wasOnCurrentDesktop != isOnCurrentDesktop())
         emit desktopPresenceChanged(this, was_desk);
 }
 
 void AbstractClient::doSetDesktop(int desktop, int was_desk)
 {
     Q_UNUSED(desktop)
     Q_UNUSED(was_desk)
 }
 
 void AbstractClient::setOnAllDesktops(bool b)
 {
     if ((b && isOnAllDesktops()) ||
             (!b && !isOnAllDesktops()))
         return;
     if (b)
         setDesktop(NET::OnAllDesktops);
     else
         setDesktop(VirtualDesktopManager::self()->current());
 }
 
 bool AbstractClient::isShadeable() const
 {
     return false;
 }
 
 void AbstractClient::setShade(bool set)
 {
     set ? setShade(ShadeNormal) : setShade(ShadeNone);
 }
 
 void AbstractClient::setShade(ShadeMode mode)
 {
     Q_UNUSED(mode)
 }
 
 ShadeMode AbstractClient::shadeMode() const
 {
     return ShadeNone;
 }
 
 AbstractClient::Position AbstractClient::titlebarPosition() const
 {
     // TODO: still needed, remove?
     return PositionTop;
 }
 
 bool AbstractClient::titlebarPositionUnderMouse() const
 {
     if (!isDecorated()) {
         return false;
     }
     const auto sectionUnderMouse = decoration()->sectionUnderMouse();
     if (sectionUnderMouse == Qt::TitleBarArea) {
         return true;
     }
     // check other sections based on titlebarPosition
     switch (titlebarPosition()) {
     case AbstractClient::PositionTop:
         return (sectionUnderMouse == Qt::TopLeftSection || sectionUnderMouse == Qt::TopSection || sectionUnderMouse == Qt::TopRightSection);
     case AbstractClient::PositionLeft:
         return (sectionUnderMouse == Qt::TopLeftSection || sectionUnderMouse == Qt::LeftSection || sectionUnderMouse == Qt::BottomLeftSection);
     case AbstractClient::PositionRight:
         return (sectionUnderMouse == Qt::BottomRightSection || sectionUnderMouse == Qt::RightSection || sectionUnderMouse == Qt::TopRightSection);
     case AbstractClient::PositionBottom:
         return (sectionUnderMouse == Qt::BottomLeftSection || sectionUnderMouse == Qt::BottomSection || sectionUnderMouse == Qt::BottomRightSection);
     default:
         // nothing
         return false;
     }
 }
 
 void AbstractClient::setMinimized(bool set)
 {
     set ? minimize() : unminimize();
 }
 
 void AbstractClient::minimize(bool avoid_animation)
 {
     if (!isMinimizable() || isMinimized())
         return;
 
     if (isShade() && info) // NETWM restriction - KWindowInfo::isMinimized() == Hidden && !Shaded
         info->setState(0, NET::Shaded);
 
     m_minimized = true;
 
     doMinimize();
 
     updateWindowRules(Rules::Minimize);
     FocusChain::self()->update(this, FocusChain::MakeFirstMinimized);
     // TODO: merge signal with s_minimized
     emit clientMinimized(this, !avoid_animation);
     emit minimizedChanged();
 }
 
 void AbstractClient::unminimize(bool avoid_animation)
 {
     if (!isMinimized())
         return;
 
     if (rules()->checkMinimize(false)) {
         return;
     }
 
     if (isShade() && info) // NETWM restriction - KWindowInfo::isMinimized() == Hidden && !Shaded
         info->setState(NET::Shaded, NET::Shaded);
 
     m_minimized = false;
 
     doMinimize();
 
     updateWindowRules(Rules::Minimize);
     emit clientUnminimized(this, !avoid_animation);
     emit minimizedChanged();
 }
 
 void AbstractClient::doMinimize()
 {
 }
 
 QPalette AbstractClient::palette() const
 {
     if (!m_palette) {
         return QPalette();
     }
     return m_palette->palette();
 }
 
 const Decoration::DecorationPalette *AbstractClient::decorationPalette() const
 {
     return m_palette.get();
 }
 
 void AbstractClient::updateColorScheme(QString path)
 {
     if (path.isEmpty()) {
         path = QStringLiteral("kdeglobals");
     }
 
     if (!m_palette || m_colorScheme != path) {
         m_colorScheme = path;
 
         if (m_palette) {
             disconnect(m_palette.get(), &Decoration::DecorationPalette::changed, this, &AbstractClient::handlePaletteChange);
         }
 
         auto it = s_palettes.find(m_colorScheme);
 
         if (it == s_palettes.end() || it->expired()) {
             m_palette = std::make_shared<Decoration::DecorationPalette>(m_colorScheme);
             if (m_palette->isValid()) {
                 s_palettes[m_colorScheme] = m_palette;
             } else {
                 if (!s_defaultPalette) {
                     s_defaultPalette = std::make_shared<Decoration::DecorationPalette>(QStringLiteral("kdeglobals"));
                     s_palettes[QStringLiteral("kdeglobals")] = s_defaultPalette;
                 }
 
                 m_palette = s_defaultPalette;
             }
 
             if (m_colorScheme == QStringLiteral("kdeglobals")) {
                 s_defaultPalette = m_palette;
             }
         } else {
             m_palette = it->lock();
         }
 
         connect(m_palette.get(), &Decoration::DecorationPalette::changed, this, &AbstractClient::handlePaletteChange);
 
         emit paletteChanged(palette());
     }
 }
 
 void AbstractClient::handlePaletteChange()
 {
     emit paletteChanged(palette());
 }
 
 void AbstractClient::keepInArea(QRect area, bool partial)
 {
     if (partial) {
         // increase the area so that can have only 100 pixels in the area
         area.setLeft(qMin(area.left() - width() + 100, area.left()));
         area.setTop(qMin(area.top() - height() + 100, area.top()));
         area.setRight(qMax(area.right() + width() - 100, area.right()));
         area.setBottom(qMax(area.bottom() + height() - 100, area.bottom()));
     }
     if (!partial) {
         // resize to fit into area
         if (area.width() < width() || area.height() < height())
             resizeWithChecks(qMin(area.width(), width()), qMin(area.height(), height()));
     }
     int tx = x(), ty = y();
     if (geometry().right() > area.right() && width() <= area.width())
         tx = area.right() - width() + 1;
     if (geometry().bottom() > area.bottom() && height() <= area.height())
         ty = area.bottom() - height() + 1;
     if (!area.contains(geometry().topLeft())) {
         if (tx < area.x())
             tx = area.x();
         if (ty < area.y())
             ty = area.y();
     }
     if (tx != x() || ty != y())
         move(tx, ty);
 }
 
 QSize AbstractClient::maxSize() const
 {
     return rules()->checkMaxSize(QSize(INT_MAX, INT_MAX));
 }
 
 QSize AbstractClient::minSize() const
 {
     return rules()->checkMinSize(QSize(0, 0));
 }
 
 void AbstractClient::updateMoveResize(const QPointF &currentGlobalCursor)
 {
     handleMoveResize(pos(), currentGlobalCursor.toPoint());
 }
 
 bool AbstractClient::hasStrut() const
 {
     return false;
 }
 
 void AbstractClient::setupWindowManagementInterface()
 {
     if (m_windowManagementInterface) {
         // already setup
         return;
     }
     if (!waylandServer() || !surface()) {
         return;
     }
     if (!waylandServer()->windowManagement()) {
         return;
     }
     using namespace KWayland::Server;
     auto w = waylandServer()->windowManagement()->createWindow(waylandServer()->windowManagement());
     w->setTitle(caption());
     w->setVirtualDesktop(isOnAllDesktops() ? 0 : desktop() - 1);
     w->setActive(isActive());
     w->setFullscreen(isFullScreen());
     w->setKeepAbove(keepAbove());
     w->setKeepBelow(keepBelow());
     w->setMaximized(maximizeMode() == KWin::MaximizeFull);
     w->setMinimized(isMinimized());
     w->setOnAllDesktops(isOnAllDesktops());
     w->setDemandsAttention(isDemandingAttention());
     w->setCloseable(isCloseable());
     w->setMaximizeable(isMaximizable());
     w->setMinimizeable(isMinimizable());
     w->setFullscreenable(isFullScreenable());
     w->setThemedIconName(icon().name().isEmpty() ? QStringLiteral("xorg") : icon().name());
     w->setAppId(QString::fromUtf8(resourceName()));
     w->setSkipTaskbar(skipTaskbar());
     w->setShadeable(isShadeable());
     w->setShaded(isShade());
     w->setResizable(isResizable());
     w->setMovable(isMovable());
     w->setVirtualDesktopChangeable(true); // FIXME Matches Client::actionSupported(), but both should be implemented.
     w->setParentWindow(transientFor() ? transientFor()->windowManagementInterface() : nullptr);
     w->setGeometry(geom);
     connect(this, &AbstractClient::skipTaskbarChanged, w,
         [w, this] {
             w->setSkipTaskbar(skipTaskbar());
         }
     );
     connect(this, &AbstractClient::captionChanged, w, [w, this] { w->setTitle(caption()); });
     connect(this, &AbstractClient::desktopChanged, w,
         [w, this] {
             if (isOnAllDesktops()) {
                 w->setOnAllDesktops(true);
                 return;
             }
             w->setVirtualDesktop(desktop() - 1);
             w->setOnAllDesktops(false);
         }
     );
     connect(this, &AbstractClient::activeChanged, w, [w, this] { w->setActive(isActive()); });
     connect(this, &AbstractClient::fullScreenChanged, w, [w, this] { w->setFullscreen(isFullScreen()); });
     connect(this, &AbstractClient::keepAboveChanged, w, &PlasmaWindowInterface::setKeepAbove);
     connect(this, &AbstractClient::keepBelowChanged, w, &PlasmaWindowInterface::setKeepBelow);
     connect(this, &AbstractClient::minimizedChanged, w, [w, this] { w->setMinimized(isMinimized()); });
     connect(this, static_cast<void (AbstractClient::*)(AbstractClient*,MaximizeMode)>(&AbstractClient::clientMaximizedStateChanged), w,
         [w] (KWin::AbstractClient *c, MaximizeMode mode) {
             Q_UNUSED(c);
             w->setMaximized(mode == KWin::MaximizeFull);
         }
     );
     connect(this, &AbstractClient::demandsAttentionChanged, w, [w, this] { w->setDemandsAttention(isDemandingAttention()); });
     connect(this, &AbstractClient::iconChanged, w,
         [w, this] {
             const QIcon i = icon();
             w->setThemedIconName(i.name().isEmpty() ? QStringLiteral("xorg") : i.name());
         }
     );
     connect(this, &AbstractClient::windowClassChanged, w,
         [w, this] {
             w->setAppId(QString::fromUtf8(resourceName()));
         }
     );
     connect(this, &AbstractClient::shadeChanged, w, [w, this] { w->setShaded(isShade()); });
     connect(this, &AbstractClient::transientChanged, w,
         [w, this] {
             w->setParentWindow(transientFor() ? transientFor()->windowManagementInterface() : nullptr);
         }
     );
     connect(this, &AbstractClient::geometryChanged, w,
         [w, this] {
             w->setGeometry(geom);
         }
     );
     connect(w, &PlasmaWindowInterface::closeRequested, this, [this] { closeWindow(); });
     connect(w, &PlasmaWindowInterface::moveRequested, this,
         [this] {
             Cursor::setPos(geometry().center());
             performMouseCommand(Options::MouseMove, Cursor::pos());
         }
     );
     connect(w, &PlasmaWindowInterface::resizeRequested, this,
         [this] {
             Cursor::setPos(geometry().bottomRight());
             performMouseCommand(Options::MouseResize, Cursor::pos());
         }
     );
     connect(w, &PlasmaWindowInterface::virtualDesktopRequested, this,
         [this] (quint32 desktop) {
             workspace()->sendClientToDesktop(this, desktop + 1, true);
         }
     );
     connect(w, &PlasmaWindowInterface::fullscreenRequested, this,
         [this] (bool set) {
             setFullScreen(set, false);
         }
     );
     connect(w, &PlasmaWindowInterface::minimizedRequested, this,
         [this] (bool set) {
             if (set) {
                 minimize();
             } else {
                 unminimize();
             }
         }
     );
     connect(w, &PlasmaWindowInterface::maximizedRequested, this,
         [this] (bool set) {
             maximize(set ? MaximizeFull : MaximizeRestore);
         }
     );
     connect(w, &PlasmaWindowInterface::keepAboveRequested, this,
         [this] (bool set) {
             setKeepAbove(set);
         }
     );
     connect(w, &PlasmaWindowInterface::keepBelowRequested, this,
         [this] (bool set) {
             setKeepBelow(set);
         }
     );
     connect(w, &PlasmaWindowInterface::demandsAttentionRequested, this,
         [this] (bool set) {
             demandAttention(set);
         }
     );
     connect(w, &PlasmaWindowInterface::activeRequested, this,
         [this] (bool set) {
             if (set) {
                 workspace()->activateClient(this, true);
             }
         }
     );
     connect(w, &PlasmaWindowInterface::shadedRequested, this,
         [this] (bool set) {
             setShade(set);
         }
     );
     m_windowManagementInterface = w;
 }
 
 void AbstractClient::destroyWindowManagementInterface()
 {
     if (m_windowManagementInterface) {
         m_windowManagementInterface->unmap();
         m_windowManagementInterface = nullptr;
     }
 }
 
 Options::MouseCommand AbstractClient::getMouseCommand(Qt::MouseButton button, bool *handled) const
 {
     *handled = false;
     if (button == Qt::NoButton) {
         return Options::MouseNothing;
     }
     if (isActive()) {
         if (options->isClickRaise()) {
             *handled = true;
             return Options::MouseActivateRaiseAndPassClick;
         }
     } else {
         *handled = true;
         switch (button) {
         case Qt::LeftButton:
             return options->commandWindow1();
         case Qt::MiddleButton:
             return options->commandWindow2();
         case Qt::RightButton:
             return options->commandWindow3();
         default:
             // all other buttons pass Activate & Pass Client
             return Options::MouseActivateAndPassClick;
         }
     }
     return Options::MouseNothing;
 }
 
 Options::MouseCommand AbstractClient::getWheelCommand(Qt::Orientation orientation, bool *handled) const
 {
     *handled = false;
     if (orientation != Qt::Vertical) {
         return Options::MouseNothing;
     }
     if (!isActive()) {
         *handled = true;
         return options->commandWindowWheel();
     }
     return Options::MouseNothing;
 }
 
 bool AbstractClient::performMouseCommand(Options::MouseCommand cmd, const QPoint &globalPos)
 {
     bool replay = false;
     switch(cmd) {
     case Options::MouseRaise:
         workspace()->raiseClient(this);
         break;
     case Options::MouseLower: {
         workspace()->lowerClient(this);
         // used to be activateNextClient(this), then topClientOnDesktop
         // since this is a mouseOp it's however safe to use the client under the mouse instead
         if (isActive() && options->focusPolicyIsReasonable()) {
             AbstractClient *next = workspace()->clientUnderMouse(screen());
             if (next && next != this)
                 workspace()->requestFocus(next, false);
         }
         break;
     }
     case Options::MouseOperationsMenu:
         if (isActive() && options->isClickRaise())
             autoRaise();
         workspace()->showWindowMenu(QRect(globalPos, globalPos), this);
         break;
     case Options::MouseToggleRaiseAndLower:
         workspace()->raiseOrLowerClient(this);
         break;
     case Options::MouseActivateAndRaise: {
         replay = isActive(); // for clickraise mode
         bool mustReplay = !rules()->checkAcceptFocus(acceptsFocus());
         if (mustReplay) {
             ToplevelList::const_iterator  it = workspace()->stackingOrder().constEnd(),
                                      begin = workspace()->stackingOrder().constBegin();
             while (mustReplay && --it != begin && *it != this) {
                 AbstractClient *c = qobject_cast<AbstractClient*>(*it);
                 if (!c || (c->keepAbove() && !keepAbove()) || (keepBelow() && !c->keepBelow()))
                     continue; // can never raise above "it"
                 mustReplay = !(c->isOnCurrentDesktop() && c->isOnCurrentActivity() && c->geometry().intersects(geometry()));
             }
         }
         workspace()->takeActivity(this, Workspace::ActivityFocus | Workspace::ActivityRaise);
         screens()->setCurrent(globalPos);
         replay = replay || mustReplay;
         break;
     }
     case Options::MouseActivateAndLower:
         workspace()->requestFocus(this);
         workspace()->lowerClient(this);
         screens()->setCurrent(globalPos);
         replay = replay || !rules()->checkAcceptFocus(acceptsFocus());
         break;
     case Options::MouseActivate:
         replay = isActive(); // for clickraise mode
         workspace()->takeActivity(this, Workspace::ActivityFocus);
         screens()->setCurrent(globalPos);
         replay = replay || !rules()->checkAcceptFocus(acceptsFocus());
         break;
     case Options::MouseActivateRaiseAndPassClick:
         workspace()->takeActivity(this, Workspace::ActivityFocus | Workspace::ActivityRaise);
         screens()->setCurrent(globalPos);
         replay = true;
         break;
     case Options::MouseActivateAndPassClick:
         workspace()->takeActivity(this, Workspace::ActivityFocus);
         screens()->setCurrent(globalPos);
         replay = true;
         break;
     case Options::MouseMaximize:
         maximize(MaximizeFull);
         break;
     case Options::MouseRestore:
         maximize(MaximizeRestore);
         break;
     case Options::MouseMinimize:
         minimize();
         break;
     case Options::MouseAbove: {
         StackingUpdatesBlocker blocker(workspace());
         if (keepBelow())
             setKeepBelow(false);
         else
             setKeepAbove(true);
         break;
     }
     case Options::MouseBelow: {
         StackingUpdatesBlocker blocker(workspace());
         if (keepAbove())
             setKeepAbove(false);
         else
             setKeepBelow(true);
         break;
     }
     case Options::MousePreviousDesktop:
         workspace()->windowToPreviousDesktop(this);
         break;
     case Options::MouseNextDesktop:
         workspace()->windowToNextDesktop(this);
         break;
     case Options::MouseOpacityMore:
         if (!isDesktop())   // No point in changing the opacity of the desktop
             setOpacity(qMin(opacity() + 0.1, 1.0));
         break;
     case Options::MouseOpacityLess:
         if (!isDesktop())   // No point in changing the opacity of the desktop
             setOpacity(qMax(opacity() - 0.1, 0.1));
         break;
     case Options::MousePreviousTab:
         if (tabGroup())
             tabGroup()->activatePrev();
     break;
     case Options::MouseNextTab:
         if (tabGroup())
             tabGroup()->activateNext();
     break;
     case Options::MouseClose:
         closeWindow();
         break;
     case Options::MouseActivateRaiseAndMove:
     case Options::MouseActivateRaiseAndUnrestrictedMove:
         workspace()->raiseClient(this);
         workspace()->requestFocus(this);
         screens()->setCurrent(globalPos);
         // fallthrough
     case Options::MouseMove:
     case Options::MouseUnrestrictedMove: {
         if (!isMovableAcrossScreens())
             break;
         if (isMoveResize())
             finishMoveResize(false);
         setMoveResizePointerMode(PositionCenter);
         setMoveResizePointerButtonDown(true);
         setMoveOffset(QPoint(globalPos.x() - x(), globalPos.y() - y()));  // map from global
         setInvertedMoveOffset(rect().bottomRight() - moveOffset());
         setUnrestrictedMoveResize((cmd == Options::MouseActivateRaiseAndUnrestrictedMove
                                   || cmd == Options::MouseUnrestrictedMove));
         if (!startMoveResize())
             setMoveResizePointerButtonDown(false);
         updateCursor();
         break;
     }
     case Options::MouseResize:
     case Options::MouseUnrestrictedResize: {
         if (!isResizable() || isShade())
             break;
         if (isMoveResize())
             finishMoveResize(false);
         setMoveResizePointerButtonDown(true);
         const QPoint moveOffset = QPoint(globalPos.x() - x(), globalPos.y() - y());  // map from global
         setMoveOffset(moveOffset);
         int x = moveOffset.x(), y = moveOffset.y();
         bool left = x < width() / 3;
         bool right = x >= 2 * width() / 3;
         bool top = y < height() / 3;
         bool bot = y >= 2 * height() / 3;
         Position mode;
         if (top)
             mode = left ? PositionTopLeft : (right ? PositionTopRight : PositionTop);
         else if (bot)
             mode = left ? PositionBottomLeft : (right ? PositionBottomRight : PositionBottom);
         else
             mode = (x < width() / 2) ? PositionLeft : PositionRight;
         setMoveResizePointerMode(mode);
         setInvertedMoveOffset(rect().bottomRight() - moveOffset);
         setUnrestrictedMoveResize((cmd == Options::MouseUnrestrictedResize));
         if (!startMoveResize())
             setMoveResizePointerButtonDown(false);
         updateCursor();
         break;
     }
     case Options::MouseDragTab:
     case Options::MouseNothing:
     default:
         replay = true;
         break;
     }
     return replay;
 }
 
 void AbstractClient::setTransientFor(AbstractClient *transientFor)
 {
     if (transientFor == this) {
         // cannot be transient for one self
         return;
     }
     if (m_transientFor == transientFor) {
         return;
     }
     m_transientFor = transientFor;
     emit transientChanged();
 }
 
 const AbstractClient *AbstractClient::transientFor() const
 {
     return m_transientFor;
 }
 
 AbstractClient *AbstractClient::transientFor()
 {
     return m_transientFor;
 }
 
 bool AbstractClient::hasTransientPlacementHint() const
 {
     return false;
 }
 
 QPoint AbstractClient::transientPlacementHint() const
 {
     return QPoint();
 }
 
 bool AbstractClient::hasTransient(const AbstractClient *c, bool indirect) const
 {
     Q_UNUSED(indirect);
     return c->transientFor() == this;
 }
 
 QList< AbstractClient* > AbstractClient::mainClients() const
 {
     if (const AbstractClient *t = transientFor()) {
         return QList<AbstractClient*>{const_cast< AbstractClient* >(t)};
     }
     return QList<AbstractClient*>();
 }
 
 QList<AbstractClient*> AbstractClient::allMainClients() const
 {
     auto result = mainClients();
     foreach (const auto *cl, result) {
         result += cl->allMainClients();
     }
     return result;
 }
 
 void AbstractClient::setModal(bool m)
 {
     // Qt-3.2 can have even modal normal windows :(
     if (m_modal == m)
         return;
     m_modal = m;
     emit modalChanged();
     // Changing modality for a mapped window is weird (?)
     // _NET_WM_STATE_MODAL should possibly rather be _NET_WM_WINDOW_TYPE_MODAL_DIALOG
 }
 
 bool AbstractClient::isModal() const
 {
     return m_modal;
 }
 
 void AbstractClient::addTransient(AbstractClient *cl)
 {
     assert(!m_transients.contains(cl));
     assert(cl != this);
     m_transients.append(cl);
 }
 
 void AbstractClient::removeTransient(AbstractClient *cl)
 {
     m_transients.removeAll(cl);
     if (cl->transientFor() == this) {
         cl->setTransientFor(nullptr);
     }
 }
 
 void AbstractClient::removeTransientFromList(AbstractClient *cl)
 {
     m_transients.removeAll(cl);
 }
 
 bool AbstractClient::isActiveFullScreen() const
 {
     if (!isFullScreen())
         return false;
 
     const auto ac = workspace()->mostRecentlyActivatedClient(); // instead of activeClient() - avoids flicker
     // according to NETWM spec implementation notes suggests
     // "focused windows having state _NET_WM_STATE_FULLSCREEN" to be on the highest layer.
     // we'll also take the screen into account
     return ac && (ac == this || ac->screen() != screen());
 }
 
 #define BORDER(which) \
     int AbstractClient::border##which() const \
     { \
         return isDecorated() ? decoration()->border##which() : 0; \
     }
 
 BORDER(Bottom)
 BORDER(Left)
 BORDER(Right)
 BORDER(Top)
 #undef BORDER
 
 QSize AbstractClient::sizeForClientSize(const QSize &wsize, Sizemode mode, bool noframe) const
 {
     Q_UNUSED(mode)
     Q_UNUSED(noframe)
     return wsize;
 }
 
 void AbstractClient::addRepaintDuringGeometryUpdates()
 {
     const QRect deco_rect = visibleRect();
     addLayerRepaint(m_visibleRectBeforeGeometryUpdate);
     addLayerRepaint(deco_rect);   // trigger repaint of window's new location
     m_visibleRectBeforeGeometryUpdate = deco_rect;
 }
 
 void AbstractClient::updateGeometryBeforeUpdateBlocking()
 {
     m_geometryBeforeUpdateBlocking = geom;
 }
 
 void AbstractClient::updateTabGroupStates(TabGroup::States)
 {
 }
 
 void AbstractClient::doMove(int, int)
 {
 }
 
 void AbstractClient::updateInitialMoveResizeGeometry()
 {
     m_moveResize.initialGeometry = geometry();
     m_moveResize.geometry = m_moveResize.initialGeometry;
     m_moveResize.startScreen = screen();
 }
 
 void AbstractClient::updateCursor()
 {
     Position m = moveResizePointerMode();
     if (!isResizable() || isShade())
         m = PositionCenter;
     Qt::CursorShape c = Qt::ArrowCursor;
     switch(m) {
     case PositionTopLeft:
     case PositionBottomRight:
         c = Qt::SizeFDiagCursor;
         break;
     case PositionBottomLeft:
     case PositionTopRight:
         c = Qt::SizeBDiagCursor;
         break;
     case PositionTop:
     case PositionBottom:
         c = Qt::SizeVerCursor;
         break;
     case PositionLeft:
     case PositionRight:
         c = Qt::SizeHorCursor;
         break;
     default:
         if (isMoveResize())
             c = Qt::SizeAllCursor;
         else
             c = Qt::ArrowCursor;
         break;
     }
     if (c == m_moveResize.cursor)
         return;
     m_moveResize.cursor = c;
     emit moveResizeCursorChanged(c);
 }
 
 void AbstractClient::leaveMoveResize()
 {
     workspace()->setClientIsMoving(nullptr);
     setMoveResize(false);
     if (ScreenEdges::self()->isDesktopSwitchingMovingClients())
         ScreenEdges::self()->reserveDesktopSwitching(false, Qt::Vertical|Qt::Horizontal);
     if (isElectricBorderMaximizing()) {
         outline()->hide();
         elevate(false);
     }
 }
 
 bool AbstractClient::s_haveResizeEffect = false;
 
 void AbstractClient::updateHaveResizeEffect()
 {
     s_haveResizeEffect = effects && static_cast<EffectsHandlerImpl*>(effects)->provides(Effect::Resize);
 }
 
 bool AbstractClient::doStartMoveResize()
 {
     return true;
 }
 
 void AbstractClient::positionGeometryTip()
 {
 }
 
 void AbstractClient::doPerformMoveResize()
 {
 }
 
 bool AbstractClient::isWaitingForMoveResizeSync() const
 {
     return false;
 }
 
 void AbstractClient::doResizeSync()
 {
 }
 
 void AbstractClient::checkQuickTilingMaximizationZones(int xroot, int yroot)
 {
     QuickTileMode mode = QuickTileNone;
     bool innerBorder = false;
     for (int i=0; i < screens()->count(); ++i) {
 
         if (!screens()->geometry(i).contains(QPoint(xroot, yroot)))
             continue;
 
         auto isInScreen = [i](const QPoint &pt) {
             for (int j = 0; j < screens()->count(); ++j) {
                 if (j == i)
                     continue;
                 if (screens()->geometry(j).contains(pt)) {
                     return true;
                 }
             }
             return false;
         };
 
         QRect area = workspace()->clientArea(MaximizeArea, QPoint(xroot, yroot), desktop());
         if (options->electricBorderTiling()) {
             if (xroot <= area.x() + 20) {
                 mode |= QuickTileLeft;
                 innerBorder = isInScreen(QPoint(area.x() - 1, yroot));
             } else if (xroot >= area.x() + area.width() - 20) {
                 mode |= QuickTileRight;
                 innerBorder = isInScreen(QPoint(area.right() + 1, yroot));
             }
         }
 
         if (mode != QuickTileNone) {
             if (yroot <= area.y() + area.height() * options->electricBorderCornerRatio())
                 mode |= QuickTileTop;
             else if (yroot >= area.y() + area.height() - area.height()  * options->electricBorderCornerRatio())
                 mode |= QuickTileBottom;
         } else if (options->electricBorderMaximize() && yroot <= area.y() + 5 && isMaximizable()) {
             mode = QuickTileMaximize;
             innerBorder = isInScreen(QPoint(xroot, area.y() - 1));
         }
         break; // no point in checking other screens to contain this... "point"...
     }
     if (mode != electricBorderMode()) {
         setElectricBorderMode(mode);
         if (innerBorder) {
             if (!m_electricMaximizingDelay) {
                 m_electricMaximizingDelay = new QTimer(this);
                 m_electricMaximizingDelay->setInterval(250);
                 m_electricMaximizingDelay->setSingleShot(true);
                 connect(m_electricMaximizingDelay, &QTimer::timeout, [this]() {
                     if (isMove())
                         setElectricBorderMaximizing(electricBorderMode() != QuickTileNone);
                 });
             }
             m_electricMaximizingDelay->start();
         } else {
             setElectricBorderMaximizing(mode != QuickTileNone);
         }
     }
 }
 
 void AbstractClient::keyPressEvent(uint key_code)
 {
     if (!isMove() && !isResize())
         return;
     bool is_control = key_code & Qt::CTRL;
     bool is_alt = key_code & Qt::ALT;
     key_code = key_code & ~Qt::KeyboardModifierMask;
     int delta = is_control ? 1 : is_alt ? 32 : 8;
     QPoint pos = Cursor::pos();
     switch(key_code) {
     case Qt::Key_Left:
         pos.rx() -= delta;
         break;
     case Qt::Key_Right:
         pos.rx() += delta;
         break;
     case Qt::Key_Up:
         pos.ry() -= delta;
         break;
     case Qt::Key_Down:
         pos.ry() += delta;
         break;
     case Qt::Key_Space:
     case Qt::Key_Return:
     case Qt::Key_Enter:
         finishMoveResize(false);
         setMoveResizePointerButtonDown(false);
         updateCursor();
         break;
     case Qt::Key_Escape:
         finishMoveResize(true);
         setMoveResizePointerButtonDown(false);
         updateCursor();
         break;
     default:
         return;
     }
     Cursor::setPos(pos);
 }
 
 QSize AbstractClient::resizeIncrements() const
 {
     return QSize(1, 1);
 }
 
 void AbstractClient::dontMoveResize()
 {
     setMoveResizePointerButtonDown(false);
     stopDelayedMoveResize();
     if (isMoveResize())
         finishMoveResize(false);
 }
 
 AbstractClient::Position AbstractClient::mousePosition() const
 {
     if (isDecorated()) {
         switch (decoration()->sectionUnderMouse()) {
             case Qt::BottomLeftSection:
                 return PositionBottomLeft;
             case Qt::BottomRightSection:
                 return PositionBottomRight;
             case Qt::BottomSection:
                 return PositionBottom;
             case Qt::LeftSection:
                 return PositionLeft;
             case Qt::RightSection:
                 return PositionRight;
             case Qt::TopSection:
                 return PositionTop;
             case Qt::TopLeftSection:
                 return PositionTopLeft;
             case Qt::TopRightSection:
                 return PositionTopRight;
             default:
                 return PositionCenter;
         }
     }
     return PositionCenter;
 }
 
 void AbstractClient::endMoveResize()
 {
     setMoveResizePointerButtonDown(false);
     stopDelayedMoveResize();
     if (isMoveResize()) {
         finishMoveResize(false);
         setMoveResizePointerMode(mousePosition());
     }
     updateCursor();
 }
 
 void AbstractClient::destroyDecoration()
 {
     delete m_decoration.decoration;
     m_decoration.decoration = nullptr;
 }
 
 bool AbstractClient::decorationHasAlpha() const
 {
     if (!isDecorated() || decoration()->isOpaque()) {
         // either no decoration or decoration has alpha disabled
         return false;
     }
     return true;
 }
 
 void AbstractClient::triggerDecorationRepaint()
 {
     if (isDecorated()) {
         decoration()->update();
     }
 }
 
 void AbstractClient::layoutDecorationRects(QRect &left, QRect &top, QRect &right, QRect &bottom) const
 {
     if (!isDecorated()) {
         return;
     }
     QRect r = decoration()->rect();
 
     top = QRect(r.x(), r.y(), r.width(), borderTop());
     bottom = QRect(r.x(), r.y() + r.height() - borderBottom(),
                    r.width(), borderBottom());
     left = QRect(r.x(), r.y() + top.height(),
                  borderLeft(), r.height() - top.height() - bottom.height());
     right = QRect(r.x() + r.width() - borderRight(), r.y() + top.height(),
                   borderRight(), r.height() - top.height() - bottom.height());
 }
 
 void AbstractClient::processDecorationMove(const QPoint &localPos, const QPoint &globalPos)
 {
     if (isMoveResizePointerButtonDown()) {
         handleMoveResize(localPos.x(), localPos.y(), globalPos.x(), globalPos.y());
         return;
     }
     // TODO: handle modifiers
     Position newmode = mousePosition();
     if (newmode != moveResizePointerMode()) {
         setMoveResizePointerMode(newmode);
         updateCursor();
     }
 }
 
 bool AbstractClient::processDecorationButtonPress(QMouseEvent *event, bool ignoreMenu)
 {
     Options::MouseCommand com = Options::MouseNothing;
     bool active = isActive();
     if (!wantsInput())    // we cannot be active, use it anyway
         active = true;
 
     // check whether it is a double click
     if (event->button() == Qt::LeftButton && titlebarPositionUnderMouse()) {
         if (m_decoration.doubleClickTimer.isValid()) {
             const qint64 interval = m_decoration.doubleClickTimer.elapsed();
             m_decoration.doubleClickTimer.invalidate();
             if (interval > QGuiApplication::styleHints()->mouseDoubleClickInterval()) {
                 m_decoration.doubleClickTimer.invalidate(); // expired -> new first click and pot. init
             } else {
                 Workspace::self()->performWindowOperation(this, options->operationTitlebarDblClick());
                 dontMoveResize();
                 return false;
             }
         }
          else {
             m_decoration.doubleClickTimer.start(); // new first click and pot. init, could be invalidated by release - see below
         }
     }
 
     if (event->button() == Qt::LeftButton)
         com = active ? options->commandActiveTitlebar1() : options->commandInactiveTitlebar1();
     else if (event->button() == Qt::MidButton)
         com = active ? options->commandActiveTitlebar2() : options->commandInactiveTitlebar2();
     else if (event->button() == Qt::RightButton)
         com = active ? options->commandActiveTitlebar3() : options->commandInactiveTitlebar3();
     if (event->button() == Qt::LeftButton
             && com != Options::MouseOperationsMenu // actions where it's not possible to get the matching
             && com != Options::MouseMinimize  // mouse release event
             && com != Options::MouseDragTab) {
         setMoveResizePointerMode(mousePosition());
         setMoveResizePointerButtonDown(true);
         setMoveOffset(event->pos());
         setInvertedMoveOffset(rect().bottomRight() - moveOffset());
         setUnrestrictedMoveResize(false);
         startDelayedMoveResize();
         updateCursor();
     }
     // In the new API the decoration may process the menu action to display an inactive tab's menu.
     // If the event is unhandled then the core will create one for the active window in the group.
     if (!ignoreMenu || com != Options::MouseOperationsMenu)
         performMouseCommand(com, event->globalPos());
     return !( // Return events that should be passed to the decoration in the new API
                com == Options::MouseRaise ||
                com == Options::MouseOperationsMenu ||
                com == Options::MouseActivateAndRaise ||
                com == Options::MouseActivate ||
                com == Options::MouseActivateRaiseAndPassClick ||
                com == Options::MouseActivateAndPassClick ||
                com == Options::MouseDragTab ||
                com == Options::MouseNothing);
 }
 
 void AbstractClient::processDecorationButtonRelease(QMouseEvent *event)
 {
     if (isDecorated()) {
         if (event->isAccepted() || !titlebarPositionUnderMouse()) {
             invalidateDecorationDoubleClickTimer(); // click was for the deco and shall not init a doubleclick
         }
     }
 
     if (event->buttons() == Qt::NoButton) {
         setMoveResizePointerButtonDown(false);
         stopDelayedMoveResize();
         if (isMoveResize()) {
             finishMoveResize(false);
             setMoveResizePointerMode(mousePosition());
         }
         updateCursor();
     }
 }
 
 
 void AbstractClient::startDecorationDoubleClickTimer()
 {
     m_decoration.doubleClickTimer.start();
 }
 
 void AbstractClient::invalidateDecorationDoubleClickTimer()
 {
     m_decoration.doubleClickTimer.invalidate();
 }
 
 bool AbstractClient::providesContextHelp() const
 {
     return false;
 }
 
 void AbstractClient::showContextHelp()
 {
 }
 
 QPointer<Decoration::DecoratedClientImpl> AbstractClient::decoratedClient() const
 {
     return m_decoration.client;
 }
 
 void AbstractClient::setDecoratedClient(QPointer< Decoration::DecoratedClientImpl > client)
 {
     m_decoration.client = client;
 }
 
 void AbstractClient::enterEvent(const QPoint &globalPos)
 {
     // TODO: shade hover
     if (options->focusPolicy() == Options::ClickToFocus || workspace()->userActionsMenu()->isShown())
         return;
 
     if (options->isAutoRaise() && !isDesktop() &&
             !isDock() && workspace()->focusChangeEnabled() &&
             globalPos != workspace()->focusMousePosition() &&
             workspace()->topClientOnDesktop(VirtualDesktopManager::self()->current(),
                                             options->isSeparateScreenFocus() ? screen() : -1) != this) {
         startAutoRaise();
     }
 
     if (isDesktop() || isDock())
         return;
     // for FocusFollowsMouse, change focus only if the mouse has actually been moved, not if the focus
     // change came because of window changes (e.g. closing a window) - #92290
     if (options->focusPolicy() != Options::FocusFollowsMouse
             || globalPos != workspace()->focusMousePosition()) {
         workspace()->requestDelayFocus(this);
     }
 }
 
 void AbstractClient::leaveEvent()
 {
     cancelAutoRaise();
     workspace()->cancelDelayFocus();
     // TODO: shade hover
     // TODO: send hover leave to deco
     // TODO: handle Options::FocusStrictlyUnderMouse
 }
 
+QRect AbstractClient::iconGeometry() const
+{
+    if (!windowManagementInterface() || !waylandServer()) {
+        // window management interface is only available if the surface is mapped
+        return QRect();
+    }
+
+    int minDistance = INT_MAX;
+    AbstractClient *candidatePanel = nullptr;
+    QRect candidateGeom;
+
+    for (auto i = windowManagementInterface()->minimizedGeometries().constBegin(), end = windowManagementInterface()->minimizedGeometries().constEnd(); i != end; ++i) {
+        AbstractClient *client = waylandServer()->findAbstractClient(i.key());
+        if (!client) {
+            continue;
+        }
+        const int distance = QPoint(client->pos() - pos()).manhattanLength();
+        if (distance < minDistance) {
+            minDistance = distance;
+            candidatePanel = client;
+            candidateGeom = i.value();
+        }
+    }
+    if (!candidatePanel) {
+        return QRect();
+    }
+    return candidateGeom.translated(candidatePanel->pos());
+}
+
 }
diff --git a/abstract_client.h b/abstract_client.h
index 3d0228983..1a31234b5 100644
--- a/abstract_client.h
+++ b/abstract_client.h
@@ -1,1016 +1,1016 @@
 /********************************************************************
  KWin - the KDE window manager
  This file is part of the KDE project.
 
 Copyright (C) 2015 Martin Gräßlin <mgraesslin@kde.org>
 
 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/>.
 *********************************************************************/
 #ifndef KWIN_ABSTRACT_CLIENT_H
 #define KWIN_ABSTRACT_CLIENT_H
 
 #include "toplevel.h"
 #include "options.h"
 #include "rules.h"
 #include "tabgroup.h"
 
 #include <memory>
 
 #include <QElapsedTimer>
 #include <QPointer>
 
 namespace KWayland
 {
 namespace Server
 {
 class PlasmaWindowInterface;
 }
 }
 
 namespace KDecoration2
 {
 class Decoration;
 }
 
 namespace KWin
 {
 
 namespace TabBox
 {
 class TabBoxClientImpl;
 }
 
 namespace Decoration
 {
 class DecoratedClientImpl;
 class DecorationPalette;
 }
 
 class KWIN_EXPORT AbstractClient : public Toplevel
 {
     Q_OBJECT
     /**
      * Whether this Client is fullScreen. A Client might either be fullScreen due to the _NET_WM property
      * or through a legacy support hack. The fullScreen state can only be changed if the Client does not
      * use the legacy hack. To be sure whether the state changed, connect to the notify signal.
      **/
     Q_PROPERTY(bool fullScreen READ isFullScreen WRITE setFullScreen NOTIFY fullScreenChanged)
     /**
      * Whether the Client can be set to fullScreen. The property is evaluated each time it is invoked.
      * Because of that there is no notify signal.
      **/
     Q_PROPERTY(bool fullScreenable READ isFullScreenable)
     /**
      * Whether this Client is the currently visible Client in its Client Group (Window Tabs).
      * For change connect to the visibleChanged signal on the Client's Group.
      **/
     Q_PROPERTY(bool isCurrentTab READ isCurrentTab)
     /**
      * Whether this Client is active or not. Use Workspace::activateClient() to activate a Client.
      * @see Workspace::activateClient
      **/
     Q_PROPERTY(bool active READ isActive NOTIFY activeChanged)
     /**
      * The desktop this Client is on. If the Client is on all desktops the property has value -1.
      **/
     Q_PROPERTY(int desktop READ desktop WRITE setDesktop NOTIFY desktopChanged)
     /**
      * Whether the Client is on all desktops. That is desktop is -1.
      **/
     Q_PROPERTY(bool onAllDesktops READ isOnAllDesktops WRITE setOnAllDesktops NOTIFY desktopChanged)
     /**
      * Indicates that the window should not be included on a taskbar.
      **/
     Q_PROPERTY(bool skipTaskbar READ skipTaskbar WRITE setSkipTaskbar NOTIFY skipTaskbarChanged)
     /**
      * Indicates that the window should not be included on a Pager.
      **/
     Q_PROPERTY(bool skipPager READ skipPager WRITE setSkipPager NOTIFY skipPagerChanged)
     /**
      * Whether the Client should be excluded from window switching effects.
      **/
     Q_PROPERTY(bool skipSwitcher READ skipSwitcher WRITE setSkipSwitcher NOTIFY skipSwitcherChanged)
     /**
      * Whether the window can be closed by the user. The value is evaluated each time the getter is called.
      * Because of that no changed signal is provided.
      **/
     Q_PROPERTY(bool closeable READ isCloseable)
     Q_PROPERTY(QIcon icon READ icon NOTIFY iconChanged)
     /**
      * Whether the Client is set to be kept above other windows.
      **/
     Q_PROPERTY(bool keepAbove READ keepAbove WRITE setKeepAbove NOTIFY keepAboveChanged)
     /**
      * Whether the Client is set to be kept below other windows.
      **/
     Q_PROPERTY(bool keepBelow READ keepBelow WRITE setKeepBelow NOTIFY keepBelowChanged)
     /**
      * Whether the Client can be shaded. The property is evaluated each time it is invoked.
      * Because of that there is no notify signal.
      **/
     Q_PROPERTY(bool shadeable READ isShadeable)
     /**
      * Whether the Client is shaded.
      **/
     Q_PROPERTY(bool shade READ isShade WRITE setShade NOTIFY shadeChanged)
     /**
      * Whether the Client can be minimized. The property is evaluated each time it is invoked.
      * Because of that there is no notify signal.
      **/
     Q_PROPERTY(bool minimizable READ isMinimizable)
     /**
      * Whether the Client is minimized.
      **/
     Q_PROPERTY(bool minimized READ isMinimized WRITE setMinimized NOTIFY minimizedChanged)
     /**
      * The optional geometry representing the minimized Client in e.g a taskbar.
      * See _NET_WM_ICON_GEOMETRY at http://standards.freedesktop.org/wm-spec/wm-spec-latest.html .
      * The value is evaluated each time the getter is called.
      * Because of that no changed signal is provided.
      **/
     Q_PROPERTY(QRect iconGeometry READ iconGeometry)
     /**
      * Returns whether the window is any of special windows types (desktop, dock, splash, ...),
      * i.e. window types that usually don't have a window frame and the user does not use window
      * management (moving, raising,...) on them.
      * The value is evaluated each time the getter is called.
      * Because of that no changed signal is provided.
      **/
     Q_PROPERTY(bool specialWindow READ isSpecialWindow)
     /**
      * Whether window state _NET_WM_STATE_DEMANDS_ATTENTION is set. This state indicates that some
      * action in or with the window happened. For example, it may be set by the Window Manager if
      * the window requested activation but the Window Manager refused it, or the application may set
      * it if it finished some work. This state may be set by both the Client and the Window Manager.
      * It should be unset by the Window Manager when it decides the window got the required attention
      * (usually, that it got activated).
      **/
     Q_PROPERTY(bool demandsAttention READ isDemandingAttention WRITE demandAttention NOTIFY demandsAttentionChanged)
     /**
      * The Caption of the Client. Read from WM_NAME property together with a suffix for hostname and shortcut.
      * To read only the caption as provided by WM_NAME, use the getter with an additional @c false value.
      **/
     Q_PROPERTY(QString caption READ caption NOTIFY captionChanged)
     /**
      * Minimum size as specified in WM_NORMAL_HINTS
      **/
     Q_PROPERTY(QSize minSize READ minSize)
     /**
      * Maximum size as specified in WM_NORMAL_HINTS
      **/
     Q_PROPERTY(QSize maxSize READ maxSize)
     /**
      * Whether the Client can accept keyboard focus.
      * The value is evaluated each time the getter is called.
      * Because of that no changed signal is provided.
      **/
     Q_PROPERTY(bool wantsInput READ wantsInput)
     /**
      * Whether the Client is a transient Window to another Window.
      * @see transientFor
      **/
     Q_PROPERTY(bool transient READ isTransient NOTIFY transientChanged)
     /**
      * The Client to which this Client is a transient if any.
      **/
     Q_PROPERTY(KWin::AbstractClient *transientFor READ transientFor NOTIFY transientChanged)
     /**
      * Whether the Client represents a modal window.
      **/
     Q_PROPERTY(bool modal READ isModal NOTIFY modalChanged)
     /**
      * The geometry of this Client. Be aware that depending on resize mode the geometryChanged signal
      * might be emitted at each resize step or only at the end of the resize operation.
      **/
     Q_PROPERTY(QRect geometry READ geometry WRITE setGeometry)
     /**
      * Whether the Client is currently being moved by the user.
      * Notify signal is emitted when the Client starts or ends move/resize mode.
      **/
     Q_PROPERTY(bool move READ isMove NOTIFY moveResizedChanged)
     /**
      * Whether the Client is currently being resized by the user.
      * Notify signal is emitted when the Client starts or ends move/resize mode.
      **/
     Q_PROPERTY(bool resize READ isResize NOTIFY moveResizedChanged)
     /**
      * Whether the decoration is currently using an alpha channel.
      **/
     Q_PROPERTY(bool decorationHasAlpha READ decorationHasAlpha)
     /**
      * Whether the window has a decoration or not.
      * This property is not allowed to be set by applications themselves.
      * The decision whether a window has a border or not belongs to the window manager.
      * If this property gets abused by application developers, it will be removed again.
      **/
     Q_PROPERTY(bool noBorder READ noBorder WRITE setNoBorder)
     /**
      * Whether the Client provides context help. Mostly needed by decorations to decide whether to
      * show the help button or not.
      **/
     Q_PROPERTY(bool providesContextHelp READ providesContextHelp CONSTANT)
 public:
     virtual ~AbstractClient();
 
     QWeakPointer<TabBox::TabBoxClientImpl> tabBoxClient() const {
         return m_tabBoxClient.toWeakRef();
     }
     bool isFirstInTabBox() const {
         return m_firstInTabBox;
     }
     bool skipSwitcher() const {
         return m_skipSwitcher;
     }
     void setSkipSwitcher(bool set);
 
     bool skipTaskbar() const {
         return m_skipTaskbar;
     }
     void setSkipTaskbar(bool set);
     void setOriginalSkipTaskbar(bool set);
     bool originalSkipTaskbar() const {
         return m_originalSkipTaskbar;
     }
 
     bool skipPager() const {
         return m_skipPager;
     }
     void setSkipPager(bool set);
 
     const QIcon &icon() const {
         return m_icon;
     }
 
     bool isActive() const {
         return m_active;
     }
     /**
      * Sets the client's active state to \a act.
      *
      * This function does only change the visual appearance of the client,
      * it does not change the focus setting. Use
      * Workspace::activateClient() or Workspace::requestFocus() instead.
      *
      * If a client receives or looses the focus, it calls setActive() on
      * its own.
      **/
     void setActive(bool);
 
     bool keepAbove() const {
         return m_keepAbove;
     }
     void setKeepAbove(bool);
     bool keepBelow() const {
         return m_keepBelow;
     }
     void setKeepBelow(bool);
 
     void demandAttention(bool set = true);
     bool isDemandingAttention() const {
         return m_demandsAttention;
     }
 
     void cancelAutoRaise();
 
     bool wantsTabFocus() const;
 
     QPoint clientPos() const override {
         return QPoint(borderLeft(), borderTop());
     }
 
     virtual void updateMouseGrab();
     virtual QString caption(bool full = true, bool stripped = false) const = 0;
     virtual bool isCloseable() const = 0;
     // TODO: remove boolean trap
     virtual bool isShown(bool shaded_is_shown) const = 0;
     virtual bool isHiddenInternal() const = 0;
     // TODO: remove boolean trap
     virtual void hideClient(bool hide) = 0;
     virtual bool isFullScreenable() const = 0;
     virtual bool isFullScreen() const = 0;
     // TODO: remove boolean trap
     virtual AbstractClient *findModal(bool allow_itself = false) = 0;
     virtual bool isTransient() const;
     /**
      * @returns Whether there is a hint available to place the AbstractClient on it's parent, default @c false.
      * @see transientPlacementHint
      **/
     virtual bool hasTransientPlacementHint() const;
     /**
      * @returns The recommended position of the transient in parent coordinates
      **/
     virtual QPoint transientPlacementHint() const;
     const AbstractClient* transientFor() const;
     AbstractClient* transientFor();
     /**
      * @returns @c true if c is the transient_for window for this client,
      *  or recursively the transient_for window
      * @todo: remove boolean trap
      **/
     virtual bool hasTransient(const AbstractClient* c, bool indirect) const;
     const QList<AbstractClient*>& transients() const; // Is not indirect
     virtual void removeTransient(AbstractClient* cl);
     virtual QList<AbstractClient*> mainClients() const; // Call once before loop , is not indirect
     QList<AbstractClient*> allMainClients() const; // Call once before loop , is indirect
     /**
      * Returns true for "special" windows and false for windows which are "normal"
      * (normal=window which has a border, can be moved by the user, can be closed, etc.)
      * true for Desktop, Dock, Splash, Override and TopMenu (and Toolbar??? - for now)
      * false for Normal, Dialog, Utility and Menu (and Toolbar??? - not yet) TODO
      */
     bool isSpecialWindow() const;
     void sendToScreen(int screen);
     virtual const QKeySequence &shortcut() const  = 0;
     virtual void setShortcut(const QString &cut) = 0;
     virtual bool performMouseCommand(Options::MouseCommand, const QPoint &globalPos);
     void setOnAllDesktops(bool set);
     void setDesktop(int);
     int desktop() const override {
         return m_desktop;
     }
     void setMinimized(bool set);
     /**
     * Minimizes this client plus its transients
     */
     void minimize(bool avoid_animation = false);
     void unminimize(bool avoid_animation = false);
     bool isMinimized() const {
         return m_minimized;
     }
     virtual void setFullScreen(bool set, bool user = true) = 0;
     virtual TabGroup *tabGroup() const;
     Q_INVOKABLE virtual bool untab(const QRect &toGeometry = QRect(), bool clientRemoved = false);
     virtual bool isCurrentTab() const;
     virtual QRect geometryRestore() const = 0;
     virtual MaximizeMode maximizeMode() const = 0;
     void maximize(MaximizeMode);
     void setMaximize(bool vertically, bool horizontally);
     virtual bool noBorder() const = 0;
     virtual void setNoBorder(bool set) = 0;
     virtual void blockActivityUpdates(bool b = true) = 0;
     QPalette palette() const;
     const Decoration::DecorationPalette *decorationPalette() const;
     virtual bool isResizable() const = 0;
     virtual bool isMovable() const = 0;
     virtual bool isMovableAcrossScreens() const = 0;
     /**
      * @c true only for @c ShadeNormal
      **/
     bool isShade() const {
         return shadeMode() == ShadeNormal;
     }
     /**
      * Default implementation returns @c ShadeNone
      **/
     virtual ShadeMode shadeMode() const; // Prefer isShade()
     void setShade(bool set);
     /**
      * Default implementation does nothing
      **/
     virtual void setShade(ShadeMode mode);
     /**
      * Whether the Client can be shaded. Default implementation returns @c false.
      **/
     virtual bool isShadeable() const;
     virtual bool isMaximizable() const = 0;
     virtual bool isMinimizable() const = 0;
-    virtual QRect iconGeometry() const = 0;
+    virtual QRect iconGeometry() const;
     virtual bool userCanSetFullScreen() const = 0;
     virtual bool userCanSetNoBorder() const = 0;
     virtual void setOnAllActivities(bool set) = 0;
     virtual const WindowRules* rules() const = 0;
     virtual void takeFocus() = 0;
     virtual bool wantsInput() const = 0;
     void checkWorkspacePosition(QRect oldGeometry = QRect(), int oldDesktop = -2,  QRect oldClientGeometry = QRect());
     virtual xcb_timestamp_t userTime() const;
     virtual void updateWindowRules(Rules::Types selection) = 0;
 
     void growHorizontal();
     void shrinkHorizontal();
     void growVertical();
     void shrinkVertical();
     void updateMoveResize(const QPointF &currentGlobalCursor);
     /**
      * Ends move resize when all pointer buttons are up again.
      **/
     void endMoveResize();
     void keyPressEvent(uint key_code);
 
     void enterEvent(const QPoint &globalPos);
     void leaveEvent();
 
     /**
      * These values represent positions inside an area
      */
     enum Position {
         // without prefix, they'd conflict with Qt::TopLeftCorner etc. :(
         PositionCenter         = 0x00,
         PositionLeft           = 0x01,
         PositionRight          = 0x02,
         PositionTop            = 0x04,
         PositionBottom         = 0x08,
         PositionTopLeft        = PositionLeft | PositionTop,
         PositionTopRight       = PositionRight | PositionTop,
         PositionBottomLeft     = PositionLeft | PositionBottom,
         PositionBottomRight    = PositionRight | PositionBottom
     };
     Position titlebarPosition() const;
     bool titlebarPositionUnderMouse() const;
 
     // a helper for the workspace window packing. tests for screen validity and updates since in maximization case as with normal moving
     void packTo(int left, int top);
 
     enum QuickTileFlag {
         QuickTileNone = 0,
         QuickTileLeft = 1,
         QuickTileRight = 1<<1,
         QuickTileTop = 1<<2,
         QuickTileBottom = 1<<3,
         QuickTileHorizontal = QuickTileLeft|QuickTileRight,
         QuickTileVertical = QuickTileTop|QuickTileBottom,
         QuickTileMaximize = QuickTileLeft|QuickTileRight|QuickTileTop|QuickTileBottom
     };
     Q_DECLARE_FLAGS(QuickTileMode, QuickTileFlag)
     /** Set the quick tile mode ("snap") of this window.
      * This will also handle preserving and restoring of window geometry as necessary.
      * @param mode The tile mode (left/right) to give this window.
      */
     void setQuickTileMode(QuickTileMode mode, bool keyboard = false);
     QuickTileMode quickTileMode() const {
         return QuickTileMode(m_quickTileMode);
     }
     Layer layer() const override;
     void updateLayer();
 
     enum ForceGeometry_t { NormalGeometrySet, ForceGeometrySet };
     void move(int x, int y, ForceGeometry_t force = NormalGeometrySet);
     void move(const QPoint &p, ForceGeometry_t force = NormalGeometrySet);
     virtual void resizeWithChecks(int w, int h, ForceGeometry_t force = NormalGeometrySet) = 0;
     void resizeWithChecks(const QSize& s, ForceGeometry_t force = NormalGeometrySet);
     void keepInArea(QRect area, bool partial = false);
     virtual QSize minSize() const;
     virtual QSize maxSize() const;
     virtual void setGeometry(int x, int y, int w, int h, ForceGeometry_t force = NormalGeometrySet) = 0;
     void setGeometry(const QRect& r, ForceGeometry_t force = NormalGeometrySet);
     /// How to resize the window in order to obey constains (mainly aspect ratios)
     enum Sizemode {
         SizemodeAny,
         SizemodeFixedW, ///< Try not to affect width
         SizemodeFixedH, ///< Try not to affect height
         SizemodeMax ///< Try not to make it larger in either direction
     };
     /**
      *Calculate the appropriate frame size for the given client size @p wsize.
      *
      * @p wsize is adapted according to the window's size hints (minimum, maximum and incremental size changes).
      *
      * Default implementation returns the passed in @p wsize.
      */
     virtual QSize sizeForClientSize(const QSize &wsize, Sizemode mode = SizemodeAny, bool noframe = false) const;
 
     QSize adjustedSize(const QSize&, Sizemode mode = SizemodeAny) const;
     QSize adjustedSize() const;
 
     bool isMove() const {
         return isMoveResize() && moveResizePointerMode() == PositionCenter;
     }
     bool isResize() const {
         return isMoveResize() && moveResizePointerMode() != PositionCenter;
     }
     /**
      * Cursor shape for move/resize mode.
      **/
     Qt::CursorShape cursor() const {
         return m_moveResize.cursor;
     }
 
     virtual bool hasStrut() const;
 
     void setModal(bool modal);
     bool isModal() const;
 
     /**
      * Determines the mouse command for the given @p button in the current state.
      *
      * The @p handled argument specifies whether the button was handled or not.
      * This value should be used to determine whether the mouse button should be
      * passed to the AbstractClient or being filtered out.
      **/
     Options::MouseCommand getMouseCommand(Qt::MouseButton button, bool *handled) const;
     Options::MouseCommand getWheelCommand(Qt::Orientation orientation, bool *handled) const;
 
     // decoration related
     KDecoration2::Decoration *decoration() {
         return m_decoration.decoration;
     }
     const KDecoration2::Decoration *decoration() const {
         return m_decoration.decoration;
     }
     bool isDecorated() const {
         return m_decoration.decoration != nullptr;
     }
     QPointer<Decoration::DecoratedClientImpl> decoratedClient() const;
     void setDecoratedClient(QPointer<Decoration::DecoratedClientImpl> client);
     bool decorationHasAlpha() const;
     void triggerDecorationRepaint();
     virtual void layoutDecorationRects(QRect &left, QRect &top, QRect &right, QRect &bottom) const;
     void processDecorationMove(const QPoint &localPos, const QPoint &globalPos);
     bool processDecorationButtonPress(QMouseEvent *event, bool ignoreMenu = false);
     void processDecorationButtonRelease(QMouseEvent *event);
 
     /**
      * TODO: fix boolean traps
      **/
     virtual void updateDecoration(bool check_workspace_pos, bool force = false) = 0;
 
     /**
     * Returns whether the window provides context help or not. If it does,
     * you should show a help menu item or a help button like '?' and call
     * contextHelp() if this is invoked.
     *
     * Default implementation returns @c false.
     * @see showContextHelp;
     */
     virtual bool providesContextHelp() const;
 
     /**
     * Invokes context help on the window. Only works if the window
     * actually provides context help.
     *
     * Default implementation does nothing.
     *
     * @see providesContextHelp()
     */
     virtual void showContextHelp();
 
     // TODO: remove boolean trap
     static bool belongToSameApplication(const AbstractClient* c1, const AbstractClient* c2, bool active_hack = false);
 
 public Q_SLOTS:
     virtual void closeWindow() = 0;
 
 Q_SIGNALS:
     void fullScreenChanged();
     void skipTaskbarChanged();
     void skipPagerChanged();
     void skipSwitcherChanged();
     void iconChanged();
     void activeChanged();
     void keepAboveChanged(bool);
     void keepBelowChanged(bool);
     /**
      * Emitted whenever the demands attention state changes.
      **/
     void demandsAttentionChanged();
     void desktopPresenceChanged(KWin::AbstractClient*, int); // to be forwarded by Workspace
     void desktopChanged();
     void shadeChanged();
     void minimizedChanged();
     void clientMinimized(KWin::AbstractClient* client, bool animate);
     void clientUnminimized(KWin::AbstractClient* client, bool animate);
     void paletteChanged(const QPalette &p);
     void captionChanged();
     void clientMaximizedStateChanged(KWin::AbstractClient*, MaximizeMode);
     void clientMaximizedStateChanged(KWin::AbstractClient* c, bool h, bool v);
     void transientChanged();
     void modalChanged();
     void quickTileModeChanged();
     void moveResizedChanged();
     void moveResizeCursorChanged(Qt::CursorShape);
     void clientStartUserMovedResized(KWin::AbstractClient*);
     void clientStepUserMovedResized(KWin::AbstractClient *, const QRect&);
     void clientFinishUserMovedResized(KWin::AbstractClient*);
     void closeableChanged(bool);
     void minimizeableChanged(bool);
     void shadeableChanged(bool);
     void maximizeableChanged(bool);
 
 protected:
     AbstractClient();
     void setFirstInTabBox(bool enable) {
         m_firstInTabBox = enable;
     }
     void setIcon(const QIcon &icon);
     void startAutoRaise();
     void autoRaise();
     /**
      * Whether the window accepts focus.
      * The difference to wantsInput is that the implementation should not check rules and return
      * what the window effectively supports.
      **/
     virtual bool acceptsFocus() const = 0;
     /**
      * Called from ::setActive once the active value got updated, but before the changed signal
      * is emitted.
      *
      * Default implementation does nothing.
      **/
     virtual void doSetActive();
     /**
      * Called from ::setKeepAbove once the keepBelow value got updated, but before the changed signal
      * is emitted.
      *
      * Default implementation does nothing.
      **/
     virtual void doSetKeepAbove();
     /**
      * Called from ::setKeepBelow once the keepBelow value got updated, but before the changed signal
      * is emitted.
      *
      * Default implementation does nothing.
      **/
     virtual void doSetKeepBelow();
     /**
      * Called from ::setDeskop once the desktop value got updated, but before the changed signal
      * is emitted.
      *
      * Default implementation does nothing.
      * @param desktop The new desktop the Client is on
      * @param was_desk The desktop the Client was on before
      **/
     virtual void doSetDesktop(int desktop, int was_desk);
     /**
      * Called from ::minimize and ::unminimize once the minimized value got updated, but before the
      * changed signal is emitted.
      *
      * Default implementation does nothig.
      **/
     virtual void doMinimize();
     // TODO: remove boolean trap
     virtual bool belongsToSameApplication(const AbstractClient *other, bool active_hack) const = 0;
 
     virtual void doSetSkipTaskbar();
     virtual void doSetSkipPager();
 
     void setupWindowManagementInterface();
     void destroyWindowManagementInterface();
 
     void updateColorScheme(QString path);
 
     void setTransientFor(AbstractClient *transientFor);
     virtual void addTransient(AbstractClient* cl);
     /**
      * Just removes the @p cl from the transients without any further checks.
      **/
     void removeTransientFromList(AbstractClient* cl);
 
     Layer belongsToLayer() const;
     virtual bool belongsToDesktop() const;
     void invalidateLayer();
     virtual bool isActiveFullScreen() const;
     virtual Layer layerForDock() const;
 
     // electric border / quick tiling
     void setElectricBorderMode(QuickTileMode mode);
     QuickTileMode electricBorderMode() const {
         return m_electricMode;
     }
     void setElectricBorderMaximizing(bool maximizing);
     bool isElectricBorderMaximizing() const {
         return m_electricMaximizing;
     }
     QRect electricBorderMaximizeGeometry(QPoint pos, int desktop);
     void updateQuickTileMode(QuickTileMode newMode) {
         m_quickTileMode = newMode;
     }
 
     KWayland::Server::PlasmaWindowInterface *windowManagementInterface() const {
         return m_windowManagementInterface;
     }
 
     // geometry handling
     void checkOffscreenPosition(QRect *geom, const QRect &screenArea);
     int borderLeft() const;
     int borderRight() const;
     int borderTop() const;
     int borderBottom() const;
     virtual void changeMaximize(bool horizontal, bool vertical, bool adjust) = 0;
     virtual void setGeometryRestore(const QRect &geo) = 0;
     /**
      * Called from move after updating the geometry. Can be reimplemented to perform specific tasks.
      * The base implementation does nothing.
      **/
     virtual void doMove(int x, int y);
     void blockGeometryUpdates(bool block);
     void blockGeometryUpdates();
     void unblockGeometryUpdates();
     bool areGeometryUpdatesBlocked() const;
     enum PendingGeometry_t {
         PendingGeometryNone,
         PendingGeometryNormal,
         PendingGeometryForced
     };
     PendingGeometry_t pendingGeometryUpdate() const;
     void setPendingGeometryUpdate(PendingGeometry_t update);
     QRect geometryBeforeUpdateBlocking() const {
         return m_geometryBeforeUpdateBlocking;
     }
     void updateGeometryBeforeUpdateBlocking();
     /**
      * Schedules a repaint for the visibleRect before and after a
      * geometry update. The current visibleRect is stored for the
      * next time this method is called as the before geometry.
      **/
     void addRepaintDuringGeometryUpdates();
 
     /**
      * Convenient method to update the TabGroup states if there is one present.
      * Marked as virtual as TabGroup does not yet handle AbstractClient, but only
      * subclasses of AbstractClient. Given that the default implementation does nothing.
      **/
     virtual void updateTabGroupStates(TabGroup::States states);
 
     /**
      * @returns whether the Client is currently in move resize mode
      **/
     bool isMoveResize() const {
         return m_moveResize.enabled;
     }
     /**
      * Sets whether the Client is in move resize mode to @p enabled.
      **/
     void setMoveResize(bool enabled) {
         m_moveResize.enabled = enabled;
     }
     /**
      * @returns whether the move resize mode is unrestricted.
      **/
     bool isUnrestrictedMoveResize() const {
         return m_moveResize.unrestricted;
     }
     /**
      * Sets whether move resize mode is unrestricted to @p set.
      **/
     void setUnrestrictedMoveResize(bool set) {
         m_moveResize.unrestricted = set;
     }
     QPoint moveOffset() const {
         return m_moveResize.offset;
     }
     void setMoveOffset(const QPoint &offset) {
         m_moveResize.offset = offset;
     }
     QPoint invertedMoveOffset() const {
         return m_moveResize.invertedOffset;
     }
     void setInvertedMoveOffset(const QPoint &offset) {
         m_moveResize.invertedOffset = offset;
     }
     QRect initialMoveResizeGeometry() const {
         return m_moveResize.initialGeometry;
     }
     /**
      * Sets the initial move resize geometry to the current geometry.
      **/
     void updateInitialMoveResizeGeometry();
     QRect moveResizeGeometry() const {
         return m_moveResize.geometry;
     }
     void setMoveResizeGeometry(const QRect &geo) {
         m_moveResize.geometry = geo;
     }
     Position moveResizePointerMode() const {
         return m_moveResize.pointer;
     }
     void setMoveResizePointerMode(Position mode) {
         m_moveResize.pointer = mode;
     }
     bool isMoveResizePointerButtonDown() const {
         return m_moveResize.buttonDown;
     }
     void setMoveResizePointerButtonDown(bool down) {
         m_moveResize.buttonDown = down;
     }
     int moveResizeStartScreen() const {
         return m_moveResize.startScreen;
     }
     void checkUnrestrictedMoveResize();
     /**
     * Sets an appropriate cursor shape for the logical mouse position.
     */
     void updateCursor();
     void startDelayedMoveResize();
     void stopDelayedMoveResize();
     bool startMoveResize();
     /**
      * Called from @link startMoveResize.
      *
      * Implementing classes should return @c false if starting move resize should
      * get aborted. In that case @link startMoveResize will also return @c false.
      *
      * Base implementation returns @c true.
      **/
     virtual bool doStartMoveResize();
     void finishMoveResize(bool cancel);
     /**
      * Leaves the move resize mode.
      *
      * Inheriting classes must invoke the base implementation which
      * ensures that the internal mode is properly ended.
      **/
     virtual void leaveMoveResize();
     virtual void positionGeometryTip();
     void performMoveResize();
     /**
      * Called from performMoveResize() after actually performing the change of geometry.
      * Implementing subclasses can perform windowing system specific handling here.
      *
      * Default implementation does nothing.
      **/
     virtual void doPerformMoveResize();
     /*
      * Checks if the mouse cursor is near the edge of the screen and if so
      * activates quick tiling or maximization
      */
     void checkQuickTilingMaximizationZones(int xroot, int yroot);
     /**
      * Whether a sync request is still pending.
      * Default implementation returns @c false.
      **/
     virtual bool isWaitingForMoveResizeSync() const;
     /**
      * Called during handling a resize. Implementing subclasses can use this
      * method to perform windowing system specific syncing.
      *
      * Default implementation does nothing.
      **/
     virtual void doResizeSync();
     void handleMoveResize(int x, int y, int x_root, int y_root);
     void handleMoveResize(const QPoint &local, const QPoint &global);
     void dontMoveResize();
 
     virtual QSize resizeIncrements() const;
 
     /**
      * Returns the position depending on the Decoration's section under mouse.
      * If no decoration it returns PositionCenter.
      **/
     Position mousePosition() const;
 
     static bool haveResizeEffect() {
         return s_haveResizeEffect;
     }
     static void updateHaveResizeEffect();
     static void resetHaveResizeEffect() {
         s_haveResizeEffect = false;
     }
 
     void setDecoration(KDecoration2::Decoration *decoration) {
         m_decoration.decoration = decoration;
     }
     virtual void destroyDecoration();
     void startDecorationDoubleClickTimer();
     void invalidateDecorationDoubleClickTimer();
 
 private:
     void handlePaletteChange();
     QSharedPointer<TabBox::TabBoxClientImpl> m_tabBoxClient;
     bool m_firstInTabBox = false;
     bool m_skipTaskbar = false;
     /**
      * Unaffected by KWin
      **/
     bool m_originalSkipTaskbar = false;
     bool m_skipPager = false;
     bool m_skipSwitcher = false;
     QIcon m_icon;
     bool m_active = false;
     bool m_keepAbove = false;
     bool m_keepBelow = false;
     bool m_demandsAttention = false;
     bool m_minimized = false;
     QTimer *m_autoRaiseTimer = nullptr;
     int m_desktop = 0; // 0 means not on any desktop yet
 
     QString m_colorScheme;
     std::shared_ptr<Decoration::DecorationPalette> m_palette;
     static QHash<QString, std::weak_ptr<Decoration::DecorationPalette>> s_palettes;
     static std::shared_ptr<Decoration::DecorationPalette> s_defaultPalette;
 
     KWayland::Server::PlasmaWindowInterface *m_windowManagementInterface = nullptr;
 
     AbstractClient *m_transientFor = nullptr;
     QList<AbstractClient*> m_transients;
     bool m_modal = false;
     Layer m_layer = UnknownLayer;
 
     // electric border/quick tiling
     QuickTileMode m_electricMode = QuickTileNone;
     bool m_electricMaximizing = false;
     /** The quick tile mode of this window.
      */
     int m_quickTileMode = QuickTileNone;
     QTimer *m_electricMaximizingDelay = nullptr;
 
     // geometry
     int m_blockGeometryUpdates = 0; // > 0 = New geometry is remembered, but not actually set
     PendingGeometry_t m_pendingGeometryUpdate = PendingGeometryNone;
     friend class GeometryUpdatesBlocker;
     QRect m_visibleRectBeforeGeometryUpdate;
     QRect m_geometryBeforeUpdateBlocking;
 
     struct {
         bool enabled = false;
         bool unrestricted = false;
         QPoint offset;
         QPoint invertedOffset;
         QRect initialGeometry;
         QRect geometry;
         Position pointer = PositionCenter;
         bool buttonDown = false;
         Qt::CursorShape cursor = Qt::ArrowCursor;
         int startScreen = 0;
         QTimer *delayedTimer = nullptr;
     } m_moveResize;
 
     struct {
         KDecoration2::Decoration *decoration = nullptr;
         QPointer<Decoration::DecoratedClientImpl> client;
         QElapsedTimer doubleClickTimer;
     } m_decoration;
 
 
     static bool s_haveResizeEffect;
 };
 
 /**
  * Helper for AbstractClient::blockGeometryUpdates() being called in pairs (true/false)
  */
 class GeometryUpdatesBlocker
 {
 public:
     explicit GeometryUpdatesBlocker(AbstractClient* c)
         : cl(c) {
         cl->blockGeometryUpdates(true);
     }
     ~GeometryUpdatesBlocker() {
         cl->blockGeometryUpdates(false);
     }
 
 private:
     AbstractClient* cl;
 };
 
 inline void AbstractClient::move(const QPoint& p, ForceGeometry_t force)
 {
     move(p.x(), p.y(), force);
 }
 
 inline void AbstractClient::resizeWithChecks(const QSize& s, AbstractClient::ForceGeometry_t force)
 {
     resizeWithChecks(s.width(), s.height(), force);
 }
 
 inline void AbstractClient::setGeometry(const QRect& r, ForceGeometry_t force)
 {
     setGeometry(r.x(), r.y(), r.width(), r.height(), force);
 }
 
 inline const QList<AbstractClient*>& AbstractClient::transients() const
 {
     return m_transients;
 }
 
 inline bool AbstractClient::areGeometryUpdatesBlocked() const
 {
     return m_blockGeometryUpdates != 0;
 }
 
 inline void AbstractClient::blockGeometryUpdates()
 {
     m_blockGeometryUpdates++;
 }
 
 inline void AbstractClient::unblockGeometryUpdates()
 {
     m_blockGeometryUpdates--;
 }
 
 inline AbstractClient::PendingGeometry_t AbstractClient::pendingGeometryUpdate() const
 {
     return m_pendingGeometryUpdate;
 }
 
 inline void AbstractClient::setPendingGeometryUpdate(PendingGeometry_t update)
 {
     m_pendingGeometryUpdate = update;
 }
 
 }
 
 Q_DECLARE_METATYPE(KWin::AbstractClient*)
 Q_DECLARE_METATYPE(QList<KWin::AbstractClient*>)
 Q_DECLARE_OPERATORS_FOR_FLAGS(KWin::AbstractClient::QuickTileMode)
 
 #endif
diff --git a/client.cpp b/client.cpp
index e52f7cca9..dc1765953 100644
--- a/client.cpp
+++ b/client.cpp
@@ -1,2149 +1,2149 @@
 /********************************************************************
  KWin - the KDE window manager
  This file is part of the KDE project.
 
 Copyright (C) 1999, 2000 Matthias Ettrich <ettrich@kde.org>
 Copyright (C) 2003 Lubos Lunak <l.lunak@kde.org>
 
 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/>.
 *********************************************************************/
 // own
 #include "client.h"
 // kwin
 #ifdef KWIN_BUILD_ACTIVITIES
 #include "activities.h"
 #endif
 #include "atoms.h"
 #include "client_machine.h"
 #include "composite.h"
 #include "cursor.h"
 #include "deleted.h"
 #include "focuschain.h"
 #include "group.h"
 #include "shadow.h"
 #include "workspace.h"
 #include "screenedge.h"
 #include "decorations/decorationbridge.h"
 #include "decorations/decoratedclient.h"
 #include <KDecoration2/Decoration>
 #include <KDecoration2/DecoratedClient>
 // KDE
 #include <KWindowSystem>
 #include <KColorScheme>
 // Qt
 #include <QApplication>
 #include <QDebug>
 #include <QFile>
 #include <QMouseEvent>
 #include <QProcess>
 #include <QStandardPaths>
 #include <QScriptEngine>
 #include <QScriptProgram>
 #include <QWhatsThis>
 // XLib
 #include <X11/Xutil.h>
 #include <fixx11h.h>
 // system
 #include <unistd.h>
 #include <signal.h>
 
 // Put all externs before the namespace statement to allow the linker
 // to resolve them properly
 
 namespace KWin
 {
 
 const long ClientWinMask = XCB_EVENT_MASK_KEY_PRESS | XCB_EVENT_MASK_KEY_RELEASE |
                            XCB_EVENT_MASK_BUTTON_PRESS | XCB_EVENT_MASK_BUTTON_RELEASE |
                            XCB_EVENT_MASK_KEYMAP_STATE |
                            XCB_EVENT_MASK_BUTTON_MOTION |
                            XCB_EVENT_MASK_POINTER_MOTION | // need this, too!
                            XCB_EVENT_MASK_ENTER_WINDOW | XCB_EVENT_MASK_LEAVE_WINDOW |
                            XCB_EVENT_MASK_FOCUS_CHANGE |
                            XCB_EVENT_MASK_EXPOSURE |
                            XCB_EVENT_MASK_STRUCTURE_NOTIFY |
                            XCB_EVENT_MASK_SUBSTRUCTURE_REDIRECT;
 
 // Creating a client:
 //  - only by calling Workspace::createClient()
 //      - it creates a new client and calls manage() for it
 //
 // Destroying a client:
 //  - destroyClient() - only when the window itself has been destroyed
 //      - releaseWindow() - the window is kept, only the client itself is destroyed
 
 /**
  * \class Client client.h
  * \brief The Client class encapsulates a window decoration frame.
  */
 
 /**
  * This ctor is "dumb" - it only initializes data. All the real initialization
  * is done in manage().
  */
 Client::Client()
     : AbstractClient()
     , m_client()
     , m_wrapper()
     , m_frame()
     , m_activityUpdatesBlocked(false)
     , m_blockedActivityUpdatesRequireTransients(false)
     , m_moveResizeGrabWindow()
     , move_resize_has_keyboard_grab(false)
     , m_managed(false)
     , m_transientForId(XCB_WINDOW_NONE)
     , m_originalTransientForId(XCB_WINDOW_NONE)
     , shade_below(NULL)
     , m_motif(atoms->motif_wm_hints)
     , blocks_compositing(false)
     , shadeHoverTimer(NULL)
     , m_colormap(XCB_COLORMAP_NONE)
     , in_group(NULL)
     , tab_group(NULL)
     , ping_timer(NULL)
     , m_killHelperPID(0)
     , m_pingTimestamp(XCB_TIME_CURRENT_TIME)
     , m_userTime(XCB_TIME_CURRENT_TIME)   // Not known yet
     , allowed_actions(0)
     , shade_geometry_change(false)
     , sm_stacking_order(-1)
     , activitiesDefined(false)
     , needsSessionInteract(false)
     , needsXWindowMove(false)
     , m_decoInputExtent()
     , m_focusOutTimer(nullptr)
     , m_clientSideDecorated(false)
 {
     // TODO: Do all as initialization
     syncRequest.counter = syncRequest.alarm = XCB_NONE;
     syncRequest.timeout = syncRequest.failsafeTimeout = NULL;
     syncRequest.lastTimestamp = xTime();
     syncRequest.isPending = false;
 
     // Set the initial mapping state
     mapping_state = Withdrawn;
 
     info = NULL;
 
     shade_mode = ShadeNone;
     deleting = false;
     fullscreen_mode = FullScreenNone;
     hidden = false;
     noborder = false;
     app_noborder = false;
     ignore_focus_stealing = false;
     check_active_modal = false;
 
     max_mode = MaximizeRestore;
 
     //Client to workspace connections require that each
     //client constructed be connected to the workspace wrapper
 
     geom = QRect(0, 0, 100, 100);   // So that decorations don't start with size being (0,0)
     client_size = QSize(100, 100);
     ready_for_painting = false; // wait for first damage or sync reply
 
     connect(clientMachine(), &ClientMachine::localhostChanged, this, &Client::updateCaption);
     connect(options, &Options::condensedTitleChanged, this, &Client::updateCaption);
 
     connect(this, &Client::moveResizeCursorChanged, this, [this] (Qt::CursorShape cursor) {
         xcb_cursor_t nativeCursor = Cursor::x11Cursor(cursor);
         m_frame.defineCursor(nativeCursor);
         if (m_decoInputExtent.isValid())
             m_decoInputExtent.defineCursor(nativeCursor);
         if (isMoveResize()) {
             // changing window attributes doesn't change cursor if there's pointer grab active
             xcb_change_active_pointer_grab(connection(), nativeCursor, xTime(),
                 XCB_EVENT_MASK_BUTTON_PRESS | XCB_EVENT_MASK_BUTTON_RELEASE | XCB_EVENT_MASK_POINTER_MOTION | XCB_EVENT_MASK_ENTER_WINDOW | XCB_EVENT_MASK_LEAVE_WINDOW);
         }
     });
 
     // SELI TODO: Initialize xsizehints??
 }
 
 /**
  * "Dumb" destructor.
  */
 Client::~Client()
 {
     if (m_killHelperPID && !::kill(m_killHelperPID, 0)) { // means the process is alive
         ::kill(m_killHelperPID, SIGTERM);
         m_killHelperPID = 0;
     }
     //SWrapper::Client::clientRelease(this);
     if (syncRequest.alarm != XCB_NONE)
         xcb_sync_destroy_alarm(connection(), syncRequest.alarm);
     assert(!isMoveResize());
     assert(m_client == XCB_WINDOW_NONE);
     assert(m_wrapper == XCB_WINDOW_NONE);
     //assert( frameId() == None );
     assert(!check_active_modal);
     for (auto it = m_connections.constBegin(); it != m_connections.constEnd(); ++it) {
         disconnect(*it);
     }
 }
 
 // Use destroyClient() or releaseWindow(), Client instances cannot be deleted directly
 void Client::deleteClient(Client* c)
 {
     delete c;
 }
 
 /**
  * Releases the window. The client has done its job and the window is still existing.
  */
 void Client::releaseWindow(bool on_shutdown)
 {
     assert(!deleting);
     deleting = true;
     destroyWindowManagementInterface();
     Deleted* del = NULL;
     if (!on_shutdown) {
         del = Deleted::create(this);
     }
     if (isMoveResize())
         emit clientFinishUserMovedResized(this);
     emit windowClosed(this, del);
     finishCompositing();
     RuleBook::self()->discardUsed(this, true);   // Remove ForceTemporarily rules
     StackingUpdatesBlocker blocker(workspace());
     if (isMoveResize())
         leaveMoveResize();
     finishWindowRules();
     blockGeometryUpdates();
     if (isOnCurrentDesktop() && isShown(true))
         addWorkspaceRepaint(visibleRect());
     // Grab X during the release to make removing of properties, setting to withdrawn state
     // and repareting to root an atomic operation (http://lists.kde.org/?l=kde-devel&m=116448102901184&w=2)
     grabXServer();
     exportMappingState(WithdrawnState);
     setModal(false);   // Otherwise its mainwindow wouldn't get focus
     hidden = true; // So that it's not considered visible anymore (can't use hideClient(), it would set flags)
     if (!on_shutdown)
         workspace()->clientHidden(this);
     m_frame.unmap();  // Destroying decoration would cause ugly visual effect
     destroyDecoration();
     cleanGrouping();
     if (!on_shutdown) {
         workspace()->removeClient(this);
         // Only when the window is being unmapped, not when closing down KWin (NETWM sections 5.5,5.7)
         info->setDesktop(0);
         info->setState(0, info->state());  // Reset all state flags
     } else
         untab();
     xcb_connection_t *c = connection();
     m_client.deleteProperty(atoms->kde_net_wm_user_creation_time);
     m_client.deleteProperty(atoms->net_frame_extents);
     m_client.deleteProperty(atoms->kde_net_wm_frame_strut);
     m_client.reparent(rootWindow(), x(), y());
     xcb_change_save_set(c, XCB_SET_MODE_DELETE, m_client);
     m_client.selectInput(XCB_EVENT_MASK_NO_EVENT);
     if (on_shutdown)
         // Map the window, so it can be found after another WM is started
         m_client.map();
     // TODO: Preserve minimized, shaded etc. state?
     else // Make sure it's not mapped if the app unmapped it (#65279). The app
         // may do map+unmap before we initially map the window by calling rawShow() from manage().
         m_client.unmap();
     m_client.reset();
     m_wrapper.reset();
     m_frame.reset();
     //frame = None;
     unblockGeometryUpdates(); // Don't use GeometryUpdatesBlocker, it would now set the geometry
     if (!on_shutdown) {
         disownDataPassedToDeleted();
         del->unrefWindow();
     }
     checkNonExistentClients();
     deleteClient(this);
     ungrabXServer();
 }
 
 /**
  * Like releaseWindow(), but this one is called when the window has been already destroyed
  * (E.g. The application closed it)
  */
 void Client::destroyClient()
 {
     assert(!deleting);
     deleting = true;
     destroyWindowManagementInterface();
     Deleted* del = Deleted::create(this);
     if (isMoveResize())
         emit clientFinishUserMovedResized(this);
     emit windowClosed(this, del);
     finishCompositing(ReleaseReason::Destroyed);
     RuleBook::self()->discardUsed(this, true);   // Remove ForceTemporarily rules
     StackingUpdatesBlocker blocker(workspace());
     if (isMoveResize())
         leaveMoveResize();
     finishWindowRules();
     blockGeometryUpdates();
     if (isOnCurrentDesktop() && isShown(true))
         addWorkspaceRepaint(visibleRect());
     setModal(false);
     hidden = true; // So that it's not considered visible anymore
     workspace()->clientHidden(this);
     destroyDecoration();
     cleanGrouping();
     workspace()->removeClient(this);
     m_client.reset(); // invalidate
     m_wrapper.reset();
     m_frame.reset();
     //frame = None;
     unblockGeometryUpdates(); // Don't use GeometryUpdatesBlocker, it would now set the geometry
     disownDataPassedToDeleted();
     del->unrefWindow();
     checkNonExistentClients();
     deleteClient(this);
 }
 
 void Client::updateInputWindow()
 {
     if (!Xcb::Extensions::self()->isShapeInputAvailable())
         return;
 
     QRegion region;
 
     if (!noBorder() && isDecorated()) {
         const QMargins &r = decoration()->resizeOnlyBorders();
         const int left   = r.left();
         const int top    = r.top();
         const int right  = r.right();
         const int bottom = r.bottom();
         if (left != 0 || top != 0 || right != 0 || bottom != 0) {
             region = QRegion(-left,
                              -top,
                              decoration()->size().width() + left + right,
                              decoration()->size().height() + top + bottom);
             region = region.subtracted(decoration()->rect());
         }
     }
 
     if (region.isEmpty()) {
         m_decoInputExtent.reset();
         return;
     }
 
     QRect bounds = region.boundingRect();
     input_offset = bounds.topLeft();
 
     // Move the bounding rect to screen coordinates
     bounds.translate(geometry().topLeft());
 
     // Move the region to input window coordinates
     region.translate(-input_offset);
 
     if (!m_decoInputExtent.isValid()) {
         const uint32_t mask = XCB_CW_OVERRIDE_REDIRECT | XCB_CW_EVENT_MASK;
         const uint32_t values[] = {true,
             XCB_EVENT_MASK_ENTER_WINDOW   |
             XCB_EVENT_MASK_LEAVE_WINDOW   |
             XCB_EVENT_MASK_BUTTON_PRESS   |
             XCB_EVENT_MASK_BUTTON_RELEASE |
             XCB_EVENT_MASK_POINTER_MOTION
         };
         m_decoInputExtent.create(bounds, XCB_WINDOW_CLASS_INPUT_ONLY, mask, values);
         if (mapping_state == Mapped)
             m_decoInputExtent.map();
     } else {
         m_decoInputExtent.setGeometry(bounds);
     }
 
     const QVector<xcb_rectangle_t> rects = Xcb::regionToRects(region);
     xcb_shape_rectangles(connection(), XCB_SHAPE_SO_SET, XCB_SHAPE_SK_INPUT, XCB_CLIP_ORDERING_UNSORTED,
                          m_decoInputExtent, 0, 0, rects.count(), rects.constData());
 }
 
 void Client::updateDecoration(bool check_workspace_pos, bool force)
 {
     if (!force &&
             ((!isDecorated() && noBorder()) || (isDecorated() && !noBorder())))
         return;
     QRect oldgeom = geometry();
     QRect oldClientGeom = oldgeom.adjusted(borderLeft(), borderTop(), -borderRight(), -borderBottom());
     blockGeometryUpdates(true);
     if (force)
         destroyDecoration();
     if (!noBorder()) {
         createDecoration(oldgeom);
     } else
         destroyDecoration();
     getShadow();
     if (check_workspace_pos)
         checkWorkspacePosition(oldgeom, -2, oldClientGeom);
     updateInputWindow();
     blockGeometryUpdates(false);
     updateFrameExtents();
 }
 
 void Client::createDecoration(const QRect& oldgeom)
 {
     KDecoration2::Decoration *decoration = Decoration::DecorationBridge::self()->createDecoration(this);
     if (decoration) {
         QMetaObject::invokeMethod(decoration, "update", Qt::QueuedConnection);
         connect(decoration, &KDecoration2::Decoration::shadowChanged, this, &Toplevel::getShadow);
         connect(decoration, &KDecoration2::Decoration::resizeOnlyBordersChanged, this, &Client::updateInputWindow);
         connect(decoration, &KDecoration2::Decoration::bordersChanged, this,
             [this]() {
                 updateFrameExtents();
                 GeometryUpdatesBlocker blocker(this);
                 // TODO: this is obviously idempotent
                 // calculateGravitation(true) would have to operate on the old border sizes
 //                 move(calculateGravitation(true));
 //                 move(calculateGravitation(false));
                 QRect oldgeom = geometry();
                 plainResize(sizeForClientSize(clientSize()), ForceGeometrySet);
                 if (!isShade())
                     checkWorkspacePosition(oldgeom);
                 emit geometryShapeChanged(this, oldgeom);
             }
         );
     }
     setDecoration(decoration);
 
     move(calculateGravitation(false));
     plainResize(sizeForClientSize(clientSize()), ForceGeometrySet);
     if (Compositor::compositing()) {
         discardWindowPixmap();
     }
     emit geometryShapeChanged(this, oldgeom);
 }
 
 void Client::destroyDecoration()
 {
     QRect oldgeom = geometry();
     if (isDecorated()) {
         QPoint grav = calculateGravitation(true);
         AbstractClient::destroyDecoration();
         plainResize(sizeForClientSize(clientSize()), ForceGeometrySet);
         move(grav);
         if (compositing())
             discardWindowPixmap();
         if (!deleting) {
             emit geometryShapeChanged(this, oldgeom);
         }
     }
     m_decoInputExtent.reset();
 }
 
 void Client::layoutDecorationRects(QRect &left, QRect &top, QRect &right, QRect &bottom) const
 {
     if (!isDecorated()) {
         return;
     }
     QRect r = decoration()->rect();
 
     NETStrut strut = info->frameOverlap();
 
     // Ignore the overlap strut when compositing is disabled
     if (!compositing())
         strut.left = strut.top = strut.right = strut.bottom = 0;
     else if (strut.left == -1 && strut.top == -1 && strut.right == -1 && strut.bottom == -1) {
         top = QRect(r.x(), r.y(), r.width(), r.height() / 3);
         left = QRect(r.x(), r.y() + top.height(), width() / 2, r.height() / 3);
         right = QRect(r.x() + left.width(), r.y() + top.height(), r.width() - left.width(), left.height());
         bottom = QRect(r.x(), r.y() + top.height() + left.height(), r.width(), r.height() - left.height() - top.height());
         return;
     }
 
     top = QRect(r.x(), r.y(), r.width(), borderTop() + strut.top);
     bottom = QRect(r.x(), r.y() + r.height() - borderBottom() - strut.bottom,
                    r.width(), borderBottom() + strut.bottom);
     left = QRect(r.x(), r.y() + top.height(),
                  borderLeft() + strut.left, r.height() - top.height() - bottom.height());
     right = QRect(r.x() + r.width() - borderRight() - strut.right, r.y() + top.height(),
                   borderRight() + strut.right, r.height() - top.height() - bottom.height());
 }
 
 QRect Client::transparentRect() const
 {
     if (isShade())
         return QRect();
 
     NETStrut strut = info->frameOverlap();
     // Ignore the strut when compositing is disabled or the decoration doesn't support it
     if (!compositing())
         strut.left = strut.top = strut.right = strut.bottom = 0;
     else if (strut.left == -1 && strut.top == -1 && strut.right == -1 && strut.bottom == -1)
         return QRect();
 
     const QRect r = QRect(clientPos(), clientSize())
                     .adjusted(strut.left, strut.top, -strut.right, -strut.bottom);
     if (r.isValid())
         return r;
 
     return QRect();
 }
 
 void Client::detectNoBorder()
 {
     if (shape()) {
         noborder = true;
         app_noborder = true;
         return;
     }
     switch(windowType()) {
     case NET::Desktop :
     case NET::Dock :
     case NET::TopMenu :
     case NET::Splash :
     case NET::Notification :
     case NET::OnScreenDisplay :
         noborder = true;
         app_noborder = true;
         break;
     case NET::Unknown :
     case NET::Normal :
     case NET::Toolbar :
     case NET::Menu :
     case NET::Dialog :
     case NET::Utility :
         noborder = false;
         break;
     default:
         abort();
     }
     // NET::Override is some strange beast without clear definition, usually
     // just meaning "noborder", so let's treat it only as such flag, and ignore it as
     // a window type otherwise (SUPPORTED_WINDOW_TYPES_MASK doesn't include it)
     if (info->windowType(NET::OverrideMask) == NET::Override) {
         noborder = true;
         app_noborder = true;
     }
 }
 
 void Client::updateFrameExtents()
 {
     NETStrut strut;
     strut.left = borderLeft();
     strut.right = borderRight();
     strut.top = borderTop();
     strut.bottom = borderBottom();
     info->setFrameExtents(strut);
 }
 
 Xcb::Property Client::fetchGtkFrameExtents() const
 {
     return Xcb::Property(false, m_client, atoms->gtk_frame_extents, XCB_ATOM_CARDINAL, 0, 4);
 }
 
 void Client::readGtkFrameExtents(Xcb::Property &prop)
 {
     m_clientSideDecorated = !prop.isNull() && prop->type != 0;
     emit clientSideDecoratedChanged();
 }
 
 void Client::detectGtkFrameExtents()
 {
     Xcb::Property prop = fetchGtkFrameExtents();
     readGtkFrameExtents(prop);
 }
 
 /**
  * Resizes the decoration, and makes sure the decoration widget gets resize event
  * even if the size hasn't changed. This is needed to make sure the decoration
  * re-layouts (e.g. when maximization state changes,
  * the decoration may alter some borders, but the actual size
  * of the decoration stays the same).
  */
 void Client::resizeDecoration()
 {
     triggerDecorationRepaint();
     updateInputWindow();
 }
 
 bool Client::noBorder() const
 {
     return noborder || isFullScreen();
 }
 
 bool Client::userCanSetNoBorder() const
 {
     return !isFullScreen() && !isShade() && !tabGroup();
 }
 
 void Client::setNoBorder(bool set)
 {
     if (!userCanSetNoBorder())
         return;
     set = rules()->checkNoBorder(set);
     if (noborder == set)
         return;
     noborder = set;
     updateDecoration(true, false);
     updateWindowRules(Rules::NoBorder);
 }
 
 void Client::checkNoBorder()
 {
     setNoBorder(app_noborder);
 }
 
 bool Client::wantsShadowToBeRendered() const
 {
     return !isFullScreen() && maximizeMode() != MaximizeFull;
 }
 
 void Client::updateShape()
 {
     if (shape()) {
         // Workaround for #19644 - Shaped windows shouldn't have decoration
         if (!app_noborder) {
             // Only when shape is detected for the first time, still let the user to override
             app_noborder = true;
             noborder = rules()->checkNoBorder(true);
             updateDecoration(true);
         }
         if (noBorder()) {
             xcb_shape_combine(connection(), XCB_SHAPE_SO_SET, XCB_SHAPE_SK_BOUNDING, XCB_SHAPE_SK_BOUNDING,
                               frameId(), clientPos().x(), clientPos().y(), window());
         }
     } else if (app_noborder) {
         xcb_shape_mask(connection(), XCB_SHAPE_SO_SET, XCB_SHAPE_SK_BOUNDING, frameId(), 0, 0, XCB_PIXMAP_NONE);
         detectNoBorder();
         app_noborder = noborder;
         noborder = rules()->checkNoBorder(noborder || m_motif.noBorder());
         updateDecoration(true);
     }
 
     // Decoration mask (i.e. 'else' here) setting is done in setMask()
     // when the decoration calls it or when the decoration is created/destroyed
     updateInputShape();
     if (compositing()) {
         addRepaintFull();
         addWorkspaceRepaint(visibleRect());   // In case shape change removes part of this window
     }
     emit geometryShapeChanged(this, geometry());
 }
 
 static Xcb::Window shape_helper_window(XCB_WINDOW_NONE);
 
 void Client::cleanupX11()
 {
     shape_helper_window.reset();
 }
 
 void Client::updateInputShape()
 {
     if (hiddenPreview())   // Sets it to none, don't change
         return;
     if (Xcb::Extensions::self()->isShapeInputAvailable()) {
         // There appears to be no way to find out if a window has input
         // shape set or not, so always propagate the input shape
         // (it's the same like the bounding shape by default).
         // Also, build the shape using a helper window, not directly
         // in the frame window, because the sequence set-shape-to-frame,
         // remove-shape-of-client, add-input-shape-of-client has the problem
         // that after the second step there's a hole in the input shape
         // until the real shape of the client is added and that can make
         // the window lose focus (which is a problem with mouse focus policies)
         // TODO: It seems there is, after all - XShapeGetRectangles() - but maybe this is better
         if (!shape_helper_window.isValid())
             shape_helper_window.create(QRect(0, 0, 1, 1));
         shape_helper_window.resize(width(), height());
         xcb_connection_t *c = connection();
         xcb_shape_combine(c, XCB_SHAPE_SO_SET, XCB_SHAPE_SK_INPUT, XCB_SHAPE_SK_BOUNDING,
                           shape_helper_window, 0, 0, frameId());
         xcb_shape_combine(c, XCB_SHAPE_SO_SUBTRACT, XCB_SHAPE_SK_INPUT, XCB_SHAPE_SK_BOUNDING,
                           shape_helper_window, clientPos().x(), clientPos().y(), window());
         xcb_shape_combine(c, XCB_SHAPE_SO_UNION, XCB_SHAPE_SK_INPUT, XCB_SHAPE_SK_INPUT,
                           shape_helper_window, clientPos().x(), clientPos().y(), window());
         xcb_shape_combine(c, XCB_SHAPE_SO_SET, XCB_SHAPE_SK_INPUT, XCB_SHAPE_SK_INPUT,
                           frameId(), 0, 0, shape_helper_window);
     }
 }
 
 void Client::hideClient(bool hide)
 {
     if (hidden == hide)
         return;
     hidden = hide;
     updateVisibility();
 }
 
 /**
  * Returns whether the window is minimizable or not
  */
 bool Client::isMinimizable() const
 {
     if (isSpecialWindow() && !isTransient())
         return false;
     if (!rules()->checkMinimize(true))
         return false;
 
     if (isTransient()) {
         // #66868 - Let other xmms windows be minimized when the mainwindow is minimized
         bool shown_mainwindow = false;
         auto mainclients = mainClients();
         for (auto it = mainclients.constBegin();
                 it != mainclients.constEnd();
                 ++it)
             if ((*it)->isShown(true))
                 shown_mainwindow = true;
         if (!shown_mainwindow)
             return true;
     }
 #if 0
     // This is here because kicker's taskbar doesn't provide separate entries
     // for windows with an explicitly given parent
     // TODO: perhaps this should be redone
     // Disabled for now, since at least modal dialogs should be minimizable
     // (resulting in the mainwindow being minimized too).
     if (transientFor() != NULL)
         return false;
 #endif
     if (!wantsTabFocus())   // SELI, TODO: - NET::Utility? why wantsTabFocus() - skiptaskbar? ?
         return false;
     return true;
 }
 
 void Client::doMinimize()
 {
     updateVisibility();
     updateAllowedActions();
     workspace()->updateMinimizedOfTransients(this);
     // Update states of all other windows in this group
     if (tabGroup())
         tabGroup()->updateStates(this, TabGroup::Minimized);
 }
 
 QRect Client::iconGeometry() const
 {
     NETRect r = info->iconGeometry();
     QRect geom(r.pos.x, r.pos.y, r.size.width, r.size.height);
     if (geom.isValid())
         return geom;
     else {
         // Check all mainwindows of this window (recursively)
         foreach (AbstractClient * amainwin, mainClients()) {
             Client *mainwin = dynamic_cast<Client*>(amainwin);
             if (!mainwin) {
                 continue;
             }
             geom = mainwin->iconGeometry();
             if (geom.isValid())
                 return geom;
         }
         // No mainwindow (or their parents) with icon geometry was found
-        return QRect();
+        return AbstractClient::iconGeometry();
     }
 }
 
 bool Client::isShadeable() const
 {
     return !isSpecialWindow() && !noBorder() && (rules()->checkShade(ShadeNormal) != rules()->checkShade(ShadeNone));
 }
 
 void Client::setShade(ShadeMode mode)
 {
     if (mode == ShadeHover && isMove())
         return; // causes geometry breaks and is probably nasty
     if (isSpecialWindow() || noBorder())
         mode = ShadeNone;
     mode = rules()->checkShade(mode);
     if (shade_mode == mode)
         return;
     bool was_shade = isShade();
     ShadeMode was_shade_mode = shade_mode;
     shade_mode = mode;
 
     // Decorations may turn off some borders when shaded
     // this has to happen _before_ the tab alignment since it will restrict the minimum geometry
 #if 0
     if (decoration)
         decoration->borders(border_left, border_right, border_top, border_bottom);
 #endif
 
     // Update states of all other windows in this group
     if (tabGroup())
         tabGroup()->updateStates(this, TabGroup::Shaded);
 
     if (was_shade == isShade()) {
         // Decoration may want to update after e.g. hover-shade changes
         emit shadeChanged();
         return; // No real change in shaded state
     }
 
     assert(isDecorated());   // noborder windows can't be shaded
     GeometryUpdatesBlocker blocker(this);
 
     // TODO: All this unmapping, resizing etc. feels too much duplicated from elsewhere
     if (isShade()) {
         // shade_mode == ShadeNormal
         addWorkspaceRepaint(visibleRect());
         // Shade
         shade_geometry_change = true;
         QSize s(sizeForClientSize(QSize(clientSize())));
         s.setHeight(borderTop() + borderBottom());
         m_wrapper.selectInput(ClientWinMask);   // Avoid getting UnmapNotify
         m_wrapper.unmap();
         m_client.unmap();
         m_wrapper.selectInput(ClientWinMask | XCB_EVENT_MASK_SUBSTRUCTURE_NOTIFY);
         exportMappingState(IconicState);
         plainResize(s);
         shade_geometry_change = false;
         if (was_shade_mode == ShadeHover) {
             if (shade_below && workspace()->stackingOrder().indexOf(shade_below) > -1)
                     workspace()->restack(this, shade_below, true);
             if (isActive())
                 workspace()->activateNextClient(this);
         } else if (isActive()) {
             workspace()->focusToNull();
         }
     } else {
         shade_geometry_change = true;
         if (decoratedClient())
             decoratedClient()->signalShadeChange();
         QSize s(sizeForClientSize(clientSize()));
         shade_geometry_change = false;
         plainResize(s);
         geom_restore = geometry();
         if ((shade_mode == ShadeHover || shade_mode == ShadeActivated) && rules()->checkAcceptFocus(info->input()))
             setActive(true);
         if (shade_mode == ShadeHover) {
             ToplevelList order = workspace()->stackingOrder();
             // invalidate, since "this" could be the topmost toplevel and shade_below dangeling
             shade_below = NULL;
             // this is likely related to the index parameter?!
             for (int idx = order.indexOf(this) + 1; idx < order.count(); ++idx) {
                 shade_below = qobject_cast<Client*>(order.at(idx));
                 if (shade_below) {
                     break;
                 }
             }
             if (shade_below && shade_below->isNormalWindow())
                 workspace()->raiseClient(this);
             else
                 shade_below = NULL;
         }
         m_wrapper.map();
         m_client.map();
         exportMappingState(NormalState);
         if (isActive())
             workspace()->requestFocus(this);
     }
     info->setState(isShade() ? NET::Shaded : NET::States(0), NET::Shaded);
     info->setState(isShown(false) ? NET::States(0) : NET::Hidden, NET::Hidden);
     discardWindowPixmap();
     updateVisibility();
     updateAllowedActions();
     updateWindowRules(Rules::Shade);
 
     emit shadeChanged();
 }
 
 void Client::shadeHover()
 {
     setShade(ShadeHover);
     cancelShadeHoverTimer();
 }
 
 void Client::shadeUnhover()
 {
     if (!tabGroup() || tabGroup()->current() == this ||
         tabGroup()->current()->shadeMode() == ShadeNormal)
         setShade(ShadeNormal);
     cancelShadeHoverTimer();
 }
 
 void Client::cancelShadeHoverTimer()
 {
     delete shadeHoverTimer;
     shadeHoverTimer = 0;
 }
 
 void Client::toggleShade()
 {
     // If the mode is ShadeHover or ShadeActive, cancel shade too
     setShade(shade_mode == ShadeNone ? ShadeNormal : ShadeNone);
 }
 
 void Client::updateVisibility()
 {
     if (deleting)
         return;
     if (hidden && isCurrentTab()) {
         info->setState(NET::Hidden, NET::Hidden);
         setSkipTaskbar(true);   // Also hide from taskbar
         if (compositing() && options->hiddenPreviews() == HiddenPreviewsAlways)
             internalKeep();
         else
             internalHide();
         return;
     }
     if (isCurrentTab())
         setSkipTaskbar(originalSkipTaskbar());   // Reset from 'hidden'
     if (isMinimized()) {
         info->setState(NET::Hidden, NET::Hidden);
         if (compositing() && options->hiddenPreviews() == HiddenPreviewsAlways)
             internalKeep();
         else
             internalHide();
         return;
     }
     info->setState(0, NET::Hidden);
     if (!isOnCurrentDesktop()) {
         if (compositing() && options->hiddenPreviews() != HiddenPreviewsNever)
             internalKeep();
         else
             internalHide();
         return;
     }
     if (!isOnCurrentActivity()) {
         if (compositing() && options->hiddenPreviews() != HiddenPreviewsNever)
             internalKeep();
         else
             internalHide();
         return;
     }
     internalShow();
 }
 
 
 /**
  * Sets the client window's mapping state. Possible values are
  * WithdrawnState, IconicState, NormalState.
  */
 void Client::exportMappingState(int s)
 {
     assert(m_client != XCB_WINDOW_NONE);
     assert(!deleting || s == WithdrawnState);
     if (s == WithdrawnState) {
         m_client.deleteProperty(atoms->wm_state);
         return;
     }
     assert(s == NormalState || s == IconicState);
 
     int32_t data[2];
     data[0] = s;
     data[1] = XCB_NONE;
     m_client.changeProperty(atoms->wm_state, atoms->wm_state, 32, 2, data);
 }
 
 void Client::internalShow()
 {
     if (mapping_state == Mapped)
         return;
     MappingState old = mapping_state;
     mapping_state = Mapped;
     if (old == Unmapped || old == Withdrawn)
         map();
     if (old == Kept) {
         m_decoInputExtent.map();
         updateHiddenPreview();
     }
     emit windowShown(this);
 }
 
 void Client::internalHide()
 {
     if (mapping_state == Unmapped)
         return;
     MappingState old = mapping_state;
     mapping_state = Unmapped;
     if (old == Mapped || old == Kept)
         unmap();
     if (old == Kept)
         updateHiddenPreview();
     addWorkspaceRepaint(visibleRect());
     workspace()->clientHidden(this);
     emit windowHidden(this);
 }
 
 void Client::internalKeep()
 {
     assert(compositing());
     if (mapping_state == Kept)
         return;
     MappingState old = mapping_state;
     mapping_state = Kept;
     if (old == Unmapped || old == Withdrawn)
         map();
     m_decoInputExtent.unmap();
     if (isActive())
         workspace()->focusToNull(); // get rid of input focus, bug #317484
     updateHiddenPreview();
     addWorkspaceRepaint(visibleRect());
     workspace()->clientHidden(this);
 }
 
 /**
  * Maps (shows) the client. Note that it is mapping state of the frame,
  * not necessarily the client window itself (i.e. a shaded window is here
  * considered mapped, even though it is in IconicState).
  */
 void Client::map()
 {
     // XComposite invalidates backing pixmaps on unmap (minimize, different
     // virtual desktop, etc.).  We kept the last known good pixmap around
     // for use in effects, but now we want to have access to the new pixmap
     if (compositing())
         discardWindowPixmap();
     m_frame.map();
     if (!isShade()) {
         m_wrapper.map();
         m_client.map();
         m_decoInputExtent.map();
         exportMappingState(NormalState);
     } else
         exportMappingState(IconicState);
     addLayerRepaint(visibleRect());
 }
 
 /**
  * Unmaps the client. Again, this is about the frame.
  */
 void Client::unmap()
 {
     // Here it may look like a race condition, as some other client might try to unmap
     // the window between these two XSelectInput() calls. However, they're supposed to
     // use XWithdrawWindow(), which also sends a synthetic event to the root window,
     // which won't be missed, so this shouldn't be a problem. The chance the real UnmapNotify
     // will be missed is also very minimal, so I don't think it's needed to grab the server
     // here.
     m_wrapper.selectInput(ClientWinMask);   // Avoid getting UnmapNotify
     m_frame.unmap();
     m_wrapper.unmap();
     m_client.unmap();
     m_decoInputExtent.unmap();
     m_wrapper.selectInput(ClientWinMask | XCB_EVENT_MASK_SUBSTRUCTURE_NOTIFY);
     exportMappingState(IconicState);
 }
 
 /**
  * XComposite doesn't keep window pixmaps of unmapped windows, which means
  * there wouldn't be any previews of windows that are minimized or on another
  * virtual desktop. Therefore rawHide() actually keeps such windows mapped.
  * However special care needs to be taken so that such windows don't interfere.
  * Therefore they're put very low in the stacking order and they have input shape
  * set to none, which hopefully is enough. If there's no input shape available,
  * then it's hoped that there will be some other desktop above it *shrug*.
  * Using normal shape would be better, but that'd affect other things, e.g. painting
  * of the actual preview.
  */
 void Client::updateHiddenPreview()
 {
     if (hiddenPreview()) {
         workspace()->forceRestacking();
         if (Xcb::Extensions::self()->isShapeInputAvailable()) {
             xcb_shape_rectangles(connection(), XCB_SHAPE_SO_SET, XCB_SHAPE_SK_INPUT,
                                  XCB_CLIP_ORDERING_UNSORTED, frameId(), 0, 0, 0, NULL);
         }
     } else {
         workspace()->forceRestacking();
         updateInputShape();
     }
 }
 
 void Client::sendClientMessage(xcb_window_t w, xcb_atom_t a, xcb_atom_t protocol, uint32_t data1, uint32_t data2, uint32_t data3, xcb_timestamp_t timestamp)
 {
     xcb_client_message_event_t ev;
     memset(&ev, 0, sizeof(ev));
     ev.response_type = XCB_CLIENT_MESSAGE;
     ev.window = w;
     ev.type = a;
     ev.format = 32;
     ev.data.data32[0] = protocol;
     ev.data.data32[1] = timestamp;
     ev.data.data32[2] = data1;
     ev.data.data32[3] = data2;
     ev.data.data32[4] = data3;
     uint32_t eventMask = 0;
     if (w == rootWindow()) {
         eventMask = XCB_EVENT_MASK_SUBSTRUCTURE_REDIRECT; // Magic!
     }
     xcb_send_event(connection(), false, w, eventMask, reinterpret_cast<const char*>(&ev));
     xcb_flush(connection());
 }
 
 /**
  * Returns whether the window may be closed (have a close button)
  */
 bool Client::isCloseable() const
 {
     return rules()->checkCloseable(m_motif.close() && !isSpecialWindow());
 }
 
 /**
  * Closes the window by either sending a delete_window message or using XKill.
  */
 void Client::closeWindow()
 {
     if (!isCloseable())
         return;
 
     // Update user time, because the window may create a confirming dialog.
     updateUserTime();
 
     if (info->supportsProtocol(NET::DeleteWindowProtocol)) {
         sendClientMessage(window(), atoms->wm_protocols, atoms->wm_delete_window);
         pingWindow();
     } else // Client will not react on wm_delete_window. We have not choice
         // but destroy his connection to the XServer.
         killWindow();
 }
 
 
 /**
  * Kills the window via XKill
  */
 void Client::killWindow()
 {
     qCDebug(KWIN_CORE) << "Client::killWindow():" << caption();
     killProcess(false);
     m_client.kill();  // Always kill this client at the server
     destroyClient();
 }
 
 /**
  * Send a ping to the window using _NET_WM_PING if possible if it
  * doesn't respond within a reasonable time, it will be killed.
  */
 void Client::pingWindow()
 {
     if (!info->supportsProtocol(NET::PingProtocol))
         return; // Can't ping :(
     if (options->killPingTimeout() == 0)
         return; // Turned off
     if (ping_timer != NULL)
         return; // Pinging already
     ping_timer = new QTimer(this);
     connect(ping_timer, &QTimer::timeout, this,
         [this]() {
             qCDebug(KWIN_CORE) << "Ping timeout:" << caption();
             ping_timer->deleteLater();
             ping_timer = nullptr;
             killProcess(true, m_pingTimestamp);
         }
     );
     ping_timer->setSingleShot(true);
     ping_timer->start(options->killPingTimeout());
     m_pingTimestamp = xTime();
     workspace()->sendPingToWindow(window(), m_pingTimestamp);
 }
 
 void Client::gotPing(xcb_timestamp_t timestamp)
 {
     // Just plain compare is not good enough because of 64bit and truncating and whatnot
     if (NET::timestampCompare(timestamp, m_pingTimestamp) != 0)
         return;
     delete ping_timer;
     ping_timer = NULL;
     if (m_killHelperPID && !::kill(m_killHelperPID, 0)) { // means the process is alive
         ::kill(m_killHelperPID, SIGTERM);
         m_killHelperPID = 0;
     }
 }
 
 void Client::killProcess(bool ask, xcb_timestamp_t timestamp)
 {
     if (m_killHelperPID && !::kill(m_killHelperPID, 0)) // means the process is alive
         return;
     Q_ASSERT(!ask || timestamp != XCB_TIME_CURRENT_TIME);
     pid_t pid = info->pid();
     if (pid <= 0 || clientMachine()->hostName().isEmpty())  // Needed properties missing
         return;
     qCDebug(KWIN_CORE) << "Kill process:" << pid << "(" << clientMachine()->hostName() << ")";
     if (!ask) {
         if (!clientMachine()->isLocal()) {
             QStringList lst;
             lst << QString::fromUtf8(clientMachine()->hostName()) << QStringLiteral("kill") << QString::number(pid);
             QProcess::startDetached(QStringLiteral("xon"), lst);
         } else
             ::kill(pid, SIGTERM);
     } else {
         QString hostname = clientMachine()->isLocal() ? QStringLiteral("localhost") : QString::fromUtf8(clientMachine()->hostName());
         QProcess::startDetached(QStringLiteral(KWIN_KILLER_BIN),
                                 QStringList() << QStringLiteral("--pid") << QString::number(unsigned(pid)) << QStringLiteral("--hostname") << hostname
                                 << QStringLiteral("--windowname") << caption()
                                 << QStringLiteral("--applicationname") << QString::fromUtf8(resourceClass())
                                 << QStringLiteral("--wid") << QString::number(window())
                                 << QStringLiteral("--timestamp") << QString::number(timestamp),
                                 QString(), &m_killHelperPID);
     }
 }
 
 void Client::doSetSkipTaskbar()
 {
     info->setState(skipTaskbar() ? NET::SkipTaskbar : NET::States(0), NET::SkipTaskbar);
 }
 
 void Client::doSetSkipPager()
 {
     info->setState(skipPager() ? NET::SkipPager : NET::States(0), NET::SkipPager);
 }
 
 void Client::doSetDesktop(int desktop, int was_desk)
 {
     Q_UNUSED(desktop)
     Q_UNUSED(was_desk)
     updateVisibility();
 
     // Update states of all other windows in this group
     if (tabGroup())
         tabGroup()->updateStates(this, TabGroup::Desktop);
 }
 
 /**
  * Sets whether the client is on @p activity.
  * If you remove it from its last activity, then it's on all activities.
  *
  * Note: If it was on all activities and you try to remove it from one, nothing will happen;
  * I don't think that's an important enough use case to handle here.
  */
 void Client::setOnActivity(const QString &activity, bool enable)
 {
 #ifdef KWIN_BUILD_ACTIVITIES
     if (! Activities::self()) {
         return;
     }
     QStringList newActivitiesList = activities();
     if (newActivitiesList.contains(activity) == enable)   //nothing to do
         return;
     if (enable) {
         QStringList allActivities = Activities::self()->all();
         if (!allActivities.contains(activity))   //bogus ID
             return;
         newActivitiesList.append(activity);
     } else
         newActivitiesList.removeOne(activity);
     setOnActivities(newActivitiesList);
 #else
     Q_UNUSED(activity)
     Q_UNUSED(enable)
 #endif
 }
 
 /**
  * set exactly which activities this client is on
  */
 void Client::setOnActivities(QStringList newActivitiesList)
 {
 #ifdef KWIN_BUILD_ACTIVITIES
     if (!Activities::self()) {
         return;
     }
     QString joinedActivitiesList = newActivitiesList.join(QStringLiteral(","));
     joinedActivitiesList = rules()->checkActivity(joinedActivitiesList, false);
     newActivitiesList = joinedActivitiesList.split(u',', QString::SkipEmptyParts);
 
     QStringList allActivities = Activities::self()->all();
 
     auto it = newActivitiesList.begin();
     while (it != newActivitiesList.end()) {
         if (! allActivities.contains(*it)) {
             it = newActivitiesList.erase(it);
         } else {
             it++;
         }
     }
 
     if (// If we got the request to be on all activities explicitly
         newActivitiesList.isEmpty() || joinedActivitiesList == Activities::nullUuid() ||
         // If we got a list of activities that covers all activities
         (newActivitiesList.count() > 1 && newActivitiesList.count() == allActivities.count())) {
 
         activityList.clear();
         const QByteArray nullUuid = Activities::nullUuid().toUtf8();
         m_client.changeProperty(atoms->activities, XCB_ATOM_STRING, 8, nullUuid.length(), nullUuid.constData());
 
     } else {
         QByteArray joined = joinedActivitiesList.toAscii();
         activityList = newActivitiesList;
         m_client.changeProperty(atoms->activities, XCB_ATOM_STRING, 8, joined.length(), joined.constData());
     }
 
     updateActivities(false);
 #else
     Q_UNUSED(newActivitiesList)
 #endif
 }
 
 void Client::blockActivityUpdates(bool b)
 {
     if (b) {
         ++m_activityUpdatesBlocked;
     } else {
         Q_ASSERT(m_activityUpdatesBlocked);
         --m_activityUpdatesBlocked;
         if (!m_activityUpdatesBlocked)
             updateActivities(m_blockedActivityUpdatesRequireTransients);
     }
 }
 
 /**
  * update after activities changed
  */
 void Client::updateActivities(bool includeTransients)
 {
     if (m_activityUpdatesBlocked) {
         m_blockedActivityUpdatesRequireTransients |= includeTransients;
         return;
     }
     emit activitiesChanged(this);
     m_blockedActivityUpdatesRequireTransients = false; // reset
     FocusChain::self()->update(this, FocusChain::MakeFirst);
     updateVisibility();
     updateWindowRules(Rules::Activity);
 
     // Update states of all other windows in this group
     if (tabGroup())
         tabGroup()->updateStates(this, TabGroup::Activity);
 }
 
 /**
  * Returns the virtual desktop within the workspace() the client window
  * is located in, 0 if it isn't located on any special desktop (not mapped yet),
  * or NET::OnAllDesktops. Do not use desktop() directly, use
  * isOnDesktop() instead.
  */
 int Client::desktop() const
 {
     if (needsSessionInteract) {
         return NET::OnAllDesktops;
     }
     return AbstractClient::desktop();
 }
 
 /**
  * Returns the list of activities the client window is on.
  * if it's on all activities, the list will be empty.
  * Don't use this, use isOnActivity() and friends (from class Toplevel)
  */
 QStringList Client::activities() const
 {
     if (needsSessionInteract) {
         return QStringList();
     }
     return activityList;
 }
 
 /**
  * if @p on is true, sets on all activities.
  * if it's false, sets it to only be on the current activity
  */
 void Client::setOnAllActivities(bool on)
 {
 #ifdef KWIN_BUILD_ACTIVITIES
     if (on == isOnAllActivities())
         return;
     if (on) {
         setOnActivities(QStringList());
 
     } else {
         setOnActivity(Activities::self()->current(), true);
     }
 #else
     Q_UNUSED(on)
 #endif
 }
 
 /**
  * Performs the actual focusing of the window using XSetInputFocus and WM_TAKE_FOCUS
  */
 void Client::takeFocus()
 {
     if (rules()->checkAcceptFocus(info->input()))
         m_client.focus();
     else
         demandAttention(false); // window cannot take input, at least withdraw urgency
     if (info->supportsProtocol(NET::TakeFocusProtocol)) {
         sendClientMessage(window(), atoms->wm_protocols, atoms->wm_take_focus, 0, 0, 0, XCB_CURRENT_TIME);
     }
     workspace()->setShouldGetFocus(this);
 
     bool breakShowingDesktop = !keepAbove();
     if (breakShowingDesktop) {
         foreach (const Client *c, group()->members()) {
             if (c->isDesktop()) {
                 breakShowingDesktop = false;
                 break;
             }
         }
     }
     if (breakShowingDesktop)
         workspace()->setShowingDesktop(false);
 }
 
 /**
  * Returns whether the window provides context help or not. If it does,
  * you should show a help menu item or a help button like '?' and call
  * contextHelp() if this is invoked.
  *
  * \sa contextHelp()
  */
 bool Client::providesContextHelp() const
 {
     return info->supportsProtocol(NET::ContextHelpProtocol);
 }
 
 /**
  * Invokes context help on the window. Only works if the window
  * actually provides context help.
  *
  * \sa providesContextHelp()
  */
 void Client::showContextHelp()
 {
     if (info->supportsProtocol(NET::ContextHelpProtocol)) {
         sendClientMessage(window(), atoms->wm_protocols, atoms->net_wm_context_help);
         QWhatsThis::enterWhatsThisMode(); // SELI TODO: ?
     }
 }
 
 /**
  * Fetches the window's caption (WM_NAME property). It will be
  * stored in the client's caption().
  */
 void Client::fetchName()
 {
     setCaption(readName());
 }
 
 QString Client::readName() const
 {
     if (info->name() && info->name()[0] != '\0')
         return QString::fromUtf8(info->name());
     else
         return KWindowSystem::readNameProperty(window(), XCB_ATOM_WM_NAME);
 }
 
 // The list is taken from http://www.unicode.org/reports/tr9/ (#154840)
 static const QChar LRM(0x200E);
 static const QChar RLM(0x200F);
 static const QChar LRE(0x202A);
 static const QChar RLE(0x202B);
 static const QChar LRO(0x202D);
 static const QChar RLO(0x202E);
 static const QChar PDF(0x202C);
 
 void Client::setCaption(const QString& _s, bool force)
 {
     if (!force && _s == cap_normal)
         return;
     QString s(_s);
     for (int i = 0; i < s.length(); ++i)
         if (!s[i].isPrint())
             s[i] = QChar(u' ');
     cap_normal = s;
     if (options->condensedTitle()) {
         static QScriptEngine engine;
         static QScriptProgram stripTitle;
         static QScriptValue script;
         if (stripTitle.isNull()) {
             const QString scriptFile = QStandardPaths::locate(QStandardPaths::GenericDataLocation, QStringLiteral(KWIN_NAME "/stripTitle.js"));
             if (!scriptFile.isEmpty()) {
                 QFile f(scriptFile);
                 if (f.open(QIODevice::ReadOnly|QIODevice::Text)) {
                     f.reset();
                     stripTitle = QScriptProgram(QString::fromLocal8Bit(f.readAll()), QStringLiteral("stripTitle.js"));
                     f.close();
                 }
             }
             if (stripTitle.isNull())
                 stripTitle = QScriptProgram(QStringLiteral("(function(title, wm_name, wm_class){ return title ; })"), QStringLiteral("stripTitle.js"));
             script = engine.evaluate(stripTitle);
         }
         QScriptValueList args;
         args << _s << QString::fromUtf8(resourceName()) << QString::fromUtf8(resourceClass());
         s = script.call(QScriptValue(), args).toString();
     }
     if (!force && s == cap_deco)
         return;
     cap_deco = s;
 
     bool reset_name = force;
     bool was_suffix = (!cap_suffix.isEmpty());
     cap_suffix.clear();
     QString machine_suffix;
     if (!options->condensedTitle()) { // machine doesn't qualify for "clean"
         if (clientMachine()->hostName() != ClientMachine::localhost() && !clientMachine()->isLocal())
             machine_suffix = QLatin1String(" <@") + QString::fromUtf8(clientMachine()->hostName()) + QLatin1Char('>') + LRM;
     }
     QString shortcut_suffix = !shortcut().isEmpty() ? (QLatin1String(" {") + shortcut().toString() + QLatin1Char('}')) : QString();
     cap_suffix = machine_suffix + shortcut_suffix;
     auto fetchNameInternalPredicate = [this](const Client *cl) {
         return (!cl->isSpecialWindow() || cl->isToolbar()) &&
                 cl != this && cl->caption() == caption();
     };
     if ((!isSpecialWindow() || isToolbar()) && workspace()->findClient(fetchNameInternalPredicate)) {
         int i = 2;
         do {
             cap_suffix = machine_suffix + QLatin1String(" <") + QString::number(i) + QLatin1Char('>') + LRM;
             i++;
         } while (workspace()->findClient(fetchNameInternalPredicate));
         info->setVisibleName(caption().toUtf8().constData());
         reset_name = false;
     }
     if ((was_suffix && cap_suffix.isEmpty()) || reset_name) {
         // If it was new window, it may have old value still set, if the window is reused
         info->setVisibleName("");
         info->setVisibleIconName("");
     } else if (!cap_suffix.isEmpty() && !cap_iconic.isEmpty())
         // Keep the same suffix in iconic name if it's set
         info->setVisibleIconName(QString(cap_iconic + cap_suffix).toUtf8().constData());
 
     emit captionChanged();
 }
 
 void Client::updateCaption()
 {
     setCaption(cap_normal, true);
 }
 
 void Client::evaluateWindowRules()
 {
     setupWindowRules(true);
     applyWindowRules();
 }
 
 void Client::fetchIconicName()
 {
     QString s;
     if (info->iconName() && info->iconName()[0] != '\0')
         s = QString::fromUtf8(info->iconName());
     else
         s = KWindowSystem::readNameProperty(window(), XCB_ATOM_WM_ICON_NAME);
     if (s != cap_iconic) {
         bool was_set = !cap_iconic.isEmpty();
         cap_iconic = s;
         if (!cap_suffix.isEmpty()) {
             if (!cap_iconic.isEmpty())  // Keep the same suffix in iconic name if it's set
                 info->setVisibleIconName(QString(s + cap_suffix).toUtf8().constData());
             else if (was_set)
                 info->setVisibleIconName("");
         }
     }
 }
 
 /**
  * \reimp
  */
 QString Client::caption(bool full, bool stripped) const
 {
     QString cap = stripped ? cap_deco : cap_normal;
     if (full)
         cap += cap_suffix;
     return cap;
 }
 
 bool Client::tabTo(Client *other, bool behind, bool activate)
 {
     Q_ASSERT(other && other != this);
 
     if (tab_group && tab_group == other->tabGroup()) { // special case: move inside group
         tab_group->move(this, other, behind);
         return true;
     }
 
     GeometryUpdatesBlocker blocker(this);
     const bool wasBlocking = signalsBlocked();
     blockSignals(true); // prevent client emitting "retabbed to nowhere" cause it's about to be entabbed the next moment
     untab();
     blockSignals(wasBlocking);
 
     TabGroup *newGroup = other->tabGroup() ? other->tabGroup() : new TabGroup(other);
 
     if (!newGroup->add(this, other, behind, activate)) {
         if (newGroup->count() < 2) { // adding "c" to "to" failed for whatever reason
             newGroup->remove(other);
             delete newGroup;
         }
         return false;
     }
     return true;
 }
 
 bool Client::untab(const QRect &toGeometry, bool clientRemoved)
 {
     TabGroup *group = tab_group;
     if (group && group->remove(this)) { // remove sets the tabgroup to "0", therefore the pointer is cached
         if (group->isEmpty()) {
             delete group;
         }
         if (clientRemoved)
             return true; // there's been a broadcast signal that this client is now removed - don't touch it
         setClientShown(!(isMinimized() || isShade()));
         bool keepSize = toGeometry.size() == size();
         bool changedSize = false;
         if (quickTileMode() != QuickTileNone) {
             changedSize = true;
             setQuickTileMode(QuickTileNone); // if we leave a quicktiled group, assume that the user wants to untile
         }
         if (toGeometry.isValid()) {
             if (maximizeMode() != MaximizeRestore) {
                 changedSize = true;
                 maximize(MaximizeRestore); // explicitly calling for a geometry -> unmaximize
             }
             if (keepSize && changedSize) {
                 geom_restore = geometry(); // checkWorkspacePosition() invokes it
                 QPoint cpoint = Cursor::pos();
                 QPoint point = cpoint;
                 point.setX((point.x() - toGeometry.x()) * geom_restore.width() / toGeometry.width());
                 point.setY((point.y() - toGeometry.y()) * geom_restore.height() / toGeometry.height());
                 geom_restore.moveTo(cpoint-point);
             } else {
                 geom_restore = toGeometry; // checkWorkspacePosition() invokes it
             }
             setGeometry(geom_restore);
             checkWorkspacePosition();
         }
         return true;
     }
     return false;
 }
 
 void Client::setTabGroup(TabGroup *group)
 {
     tab_group = group;
     if (group) {
         unsigned long data[] = {qHash(group)}; //->id();
         m_client.changeProperty(atoms->kde_net_wm_tab_group, XCB_ATOM_CARDINAL, 32, 1, data);
     }
     else
         m_client.deleteProperty(atoms->kde_net_wm_tab_group);
     emit tabGroupChanged();
 }
 
 bool Client::isCurrentTab() const
 {
     return !tab_group || tab_group->current() == this;
 }
 
 void Client::syncTabGroupFor(QString property, bool fromThisClient)
 {
     if (tab_group)
         tab_group->sync(property.toAscii().data(), fromThisClient ? this : tab_group->current());
 }
 
 void Client::setClientShown(bool shown)
 {
     if (deleting)
         return; // Don't change shown status if this client is being deleted
     if (shown != hidden)
         return; // nothing to change
     hidden = !shown;
     if (options->isInactiveTabsSkipTaskbar())
         setSkipTaskbar(hidden); // TODO: Causes reshuffle of the taskbar
     if (shown) {
         map();
         takeFocus();
         autoRaise();
         FocusChain::self()->update(this, FocusChain::MakeFirst);
     } else {
         unmap();
         // Don't move tabs to the end of the list when another tab get's activated
         if (isCurrentTab())
             FocusChain::self()->update(this, FocusChain::MakeLast);
         addWorkspaceRepaint(visibleRect());
     }
 }
 
 void Client::getMotifHints()
 {
     const bool wasClosable = m_motif.close();
     const bool wasNoBorder = m_motif.noBorder();
     if (m_managed) // only on property change, initial read is prefetched
         m_motif.fetch();
     m_motif.read();
     if (m_motif.hasDecoration() && m_motif.noBorder() != wasNoBorder) {
         // If we just got a hint telling us to hide decorations, we do so.
         if (m_motif.noBorder())
             noborder = rules()->checkNoBorder(true);
         // If the Motif hint is now telling us to show decorations, we only do so if the app didn't
         // instruct us to hide decorations in some other way, though.
         else if (!app_noborder)
             noborder = rules()->checkNoBorder(false);
     }
 
     // mminimize; - Ignore, bogus - E.g. shading or sending to another desktop is "minimizing" too
     // mmaximize; - Ignore, bogus - Maximizing is basically just resizing
     const bool closabilityChanged = wasClosable != m_motif.close();
     if (isManaged())
         updateDecoration(true);   // Check if noborder state has changed
     if (closabilityChanged) {
         emit closeableChanged(isCloseable());
     }
 }
 
 void Client::getIcons()
 {
     // First read icons from the window itself
     QIcon icon;
     auto readIcon = [this, &icon](int size, bool scale = true) {
         const QPixmap pix = KWindowSystem::icon(window(), size, size, scale, KWindowSystem::NETWM | KWindowSystem::WMHints, info);
         if (!pix.isNull()) {
             icon.addPixmap(pix);
         }
     };
     readIcon(16);
     readIcon(32);
     readIcon(48, false);
     readIcon(64, false);
     readIcon(128, false);
     if (icon.isNull()) {
         // Then try window group
         icon = group()->icon();
     }
     if (icon.isNull() && isTransient()) {
         // Then mainclients
         auto mainclients = mainClients();
         for (auto it = mainclients.constBegin();
                 it != mainclients.constEnd() && icon.isNull();
                 ++it) {
             if (!(*it)->icon().isNull()) {
                 icon = (*it)->icon();
                 break;
             }
         }
     }
     if (icon.isNull()) {
         // And if nothing else, load icon from classhint or xapp icon
         icon.addPixmap(KWindowSystem::icon(window(),  32,  32,  true, KWindowSystem::ClassHint | KWindowSystem::XApp, info));
         icon.addPixmap(KWindowSystem::icon(window(),  16,  16,  true, KWindowSystem::ClassHint | KWindowSystem::XApp, info));
         icon.addPixmap(KWindowSystem::icon(window(),  64,  64, false, KWindowSystem::ClassHint | KWindowSystem::XApp, info));
         icon.addPixmap(KWindowSystem::icon(window(), 128, 128, false, KWindowSystem::ClassHint | KWindowSystem::XApp, info));
     }
     setIcon(icon);
 }
 
 void Client::getSyncCounter()
 {
     if (!Xcb::Extensions::self()->isSyncAvailable())
         return;
 
     Xcb::Property syncProp(false, window(), atoms->net_wm_sync_request_counter, XCB_ATOM_CARDINAL, 0, 1);
     const xcb_sync_counter_t counter = syncProp.value<xcb_sync_counter_t>(XCB_NONE);
     if (counter != XCB_NONE) {
         syncRequest.counter = counter;
         syncRequest.value.hi = 0;
         syncRequest.value.lo = 0;
         auto *c = connection();
         xcb_sync_set_counter(c, syncRequest.counter, syncRequest.value);
         if (syncRequest.alarm == XCB_NONE) {
             const uint32_t mask = XCB_SYNC_CA_COUNTER | XCB_SYNC_CA_VALUE_TYPE | XCB_SYNC_CA_TEST_TYPE | XCB_SYNC_CA_EVENTS;
             const uint32_t values[] = {
                 syncRequest.counter,
                 XCB_SYNC_VALUETYPE_RELATIVE,
                 XCB_SYNC_TESTTYPE_POSITIVE_TRANSITION,
                 1
             };
             syncRequest.alarm = xcb_generate_id(c);
             auto cookie = xcb_sync_create_alarm_checked(c, syncRequest.alarm, mask, values);
             ScopedCPointer<xcb_generic_error_t> error(xcb_request_check(c, cookie));
             if (!error.isNull()) {
                 syncRequest.alarm = XCB_NONE;
             } else {
                 xcb_sync_change_alarm_value_list_t value;
                 memset(&value, 0, sizeof(value));
                 value.value.hi = 0;
                 value.value.lo = 1;
                 value.delta.hi = 0;
                 value.delta.lo = 1;
                 xcb_sync_change_alarm_aux(c, syncRequest.alarm, XCB_SYNC_CA_DELTA | XCB_SYNC_CA_VALUE, &value);
             }
         }
     }
 }
 
 /**
  * Send the client a _NET_SYNC_REQUEST
  */
 void Client::sendSyncRequest()
 {
     if (syncRequest.counter == XCB_NONE || syncRequest.isPending)
         return; // do NOT, NEVER send a sync request when there's one on the stack. the clients will just stop respoding. FOREVER! ...
 
     if (!syncRequest.failsafeTimeout) {
         syncRequest.failsafeTimeout = new QTimer(this);
         connect(syncRequest.failsafeTimeout, &QTimer::timeout, this,
             [this]() {
                 // client does not respond to XSYNC requests in reasonable time, remove support
                 if (!ready_for_painting) {
                     // failed on initial pre-show request
                     setReadyForPainting();
                     setupWindowManagementInterface();
                     return;
                 }
                 // failed during resize
                 syncRequest.isPending = false;
                 syncRequest.counter = syncRequest.alarm = XCB_NONE;
                 delete syncRequest.timeout; delete syncRequest.failsafeTimeout;
                 syncRequest.timeout = syncRequest.failsafeTimeout = nullptr;
                 syncRequest.lastTimestamp = XCB_CURRENT_TIME;
             }
         );
         syncRequest.failsafeTimeout->setSingleShot(true);
     }
     // if there's no response within 10 seconds, sth. went wrong and we remove XSYNC support from this client.
     // see events.cpp Client::syncEvent()
     syncRequest.failsafeTimeout->start(ready_for_painting ? 10000 : 1000);
 
     // We increment before the notify so that after the notify
     // syncCounterSerial will equal the value we are expecting
     // in the acknowledgement
     const uint32_t oldLo = syncRequest.value.lo;
     syncRequest.value.lo++;;
     if (oldLo > syncRequest.value.lo) {
         syncRequest.value.hi++;
     }
     if (syncRequest.lastTimestamp >= xTime()) {
         updateXTime();
     }
 
     // Send the message to client
     sendClientMessage(window(), atoms->wm_protocols, atoms->net_wm_sync_request, syncRequest.value.lo, syncRequest.value.hi);
     syncRequest.isPending = true;
     syncRequest.lastTimestamp = xTime();
 }
 
 bool Client::wantsInput() const
 {
     return rules()->checkAcceptFocus(acceptsFocus() || info->supportsProtocol(NET::TakeFocusProtocol));
 }
 
 bool Client::acceptsFocus() const
 {
     return info->input();
 }
 
 void Client::setBlockingCompositing(bool block)
 {
     const bool usedToBlock = blocks_compositing;
     blocks_compositing = rules()->checkBlockCompositing(block);
     if (usedToBlock != blocks_compositing) {
         emit blockingCompositingChanged(blocks_compositing ? this : 0);
     }
 }
 
 void Client::updateAllowedActions(bool force)
 {
     if (!isManaged() && !force)
         return;
     NET::Actions old_allowed_actions = NET::Actions(allowed_actions);
     allowed_actions = 0;
     if (isMovable())
         allowed_actions |= NET::ActionMove;
     if (isResizable())
         allowed_actions |= NET::ActionResize;
     if (isMinimizable())
         allowed_actions |= NET::ActionMinimize;
     if (isShadeable())
         allowed_actions |= NET::ActionShade;
     // Sticky state not supported
     if (isMaximizable())
         allowed_actions |= NET::ActionMax;
     if (userCanSetFullScreen())
         allowed_actions |= NET::ActionFullScreen;
     allowed_actions |= NET::ActionChangeDesktop; // Always (Pagers shouldn't show Docks etc.)
     if (isCloseable())
         allowed_actions |= NET::ActionClose;
     if (old_allowed_actions == allowed_actions)
         return;
     // TODO: This could be delayed and compressed - It's only for pagers etc. anyway
     info->setAllowedActions(allowed_actions);
 
     // ONLY if relevant features have changed (and the window didn't just get/loose moveresize for maximization state changes)
     const NET::Actions relevant = ~(NET::ActionMove|NET::ActionResize);
     if ((allowed_actions & relevant) != (old_allowed_actions & relevant)) {
         if ((allowed_actions & NET::ActionMinimize) != (old_allowed_actions & NET::ActionMinimize)) {
             emit minimizeableChanged(allowed_actions & NET::ActionMinimize);
         }
         if ((allowed_actions & NET::ActionShade) != (old_allowed_actions & NET::ActionShade)) {
             emit shadeableChanged(allowed_actions & NET::ActionShade);
         }
         if ((allowed_actions & NET::ActionMax) != (old_allowed_actions & NET::ActionMax)) {
             emit maximizeableChanged(allowed_actions & NET::ActionMax);
         }
     }
 }
 
 void Client::debug(QDebug& stream) const
 {
     print<QDebug>(stream);
 }
 
 Xcb::StringProperty Client::fetchActivities() const
 {
 #ifdef KWIN_BUILD_ACTIVITIES
     return Xcb::StringProperty(window(), atoms->activities);
 #else
     return Xcb::StringProperty();
 #endif
 }
 
 void Client::readActivities(Xcb::StringProperty &property)
 {
 #ifdef KWIN_BUILD_ACTIVITIES
     QStringList newActivitiesList;
     QString prop = QString::fromUtf8(property);
     activitiesDefined = !prop.isEmpty();
 
     if (prop == Activities::nullUuid()) {
         //copied from setOnAllActivities to avoid a redundant XChangeProperty.
         if (!activityList.isEmpty()) {
             activityList.clear();
             updateActivities(true);
         }
         return;
     }
     if (prop.isEmpty()) {
         //note: this makes it *act* like it's on all activities but doesn't set the property to 'ALL'
         if (!activityList.isEmpty()) {
             activityList.clear();
             updateActivities(true);
         }
         return;
     }
 
     newActivitiesList = prop.split(u',');
 
     if (newActivitiesList == activityList)
         return; //expected change, it's ok.
 
     //otherwise, somebody else changed it. we need to validate before reacting.
     //if the activities are not synced, and there are existing clients with
     //activities specified, somebody has restarted kwin. we can not validate
     //activities in this case. we need to trust the old values.
     if (Activities::self() && Activities::self()->serviceStatus() != KActivities::Consumer::Unknown) {
         QStringList allActivities = Activities::self()->all();
         if (allActivities.isEmpty()) {
             qCDebug(KWIN_CORE) << "no activities!?!?";
             //don't touch anything, there's probably something bad going on and we don't wanna make it worse
             return;
         }
 
 
         for (int i = 0; i < newActivitiesList.size(); ++i) {
             if (! allActivities.contains(newActivitiesList.at(i))) {
                 qCDebug(KWIN_CORE) << "invalid:" << newActivitiesList.at(i);
                 newActivitiesList.removeAt(i--);
             }
         }
     }
     setOnActivities(newActivitiesList);
 #else
     Q_UNUSED(property)
 #endif
 }
 
 void Client::checkActivities()
 {
 #ifdef KWIN_BUILD_ACTIVITIES
     Xcb::StringProperty property = fetchActivities();
     readActivities(property);
 #endif
 }
 
 void Client::setSessionInteract(bool needed)
 {
     needsSessionInteract = needed;
 }
 
 QRect Client::decorationRect() const
 {
     return QRect(0, 0, width(), height());
 }
 
 Xcb::Property Client::fetchFirstInTabBox() const
 {
     return Xcb::Property(false, m_client, atoms->kde_first_in_window_list,
                          atoms->kde_first_in_window_list, 0, 1);
 }
 
 void Client::readFirstInTabBox(Xcb::Property &property)
 {
     setFirstInTabBox(property.toBool(32, atoms->kde_first_in_window_list));
 }
 
 void Client::updateFirstInTabBox()
 {
     // TODO: move into KWindowInfo
     Xcb::Property property = fetchFirstInTabBox();
     readFirstInTabBox(property);
 }
 
 Xcb::StringProperty Client::fetchColorScheme() const
 {
     return Xcb::StringProperty(m_client, atoms->kde_color_sheme);
 }
 
 void Client::readColorScheme(Xcb::StringProperty &property)
 {
     AbstractClient::updateColorScheme(rules()->checkDecoColor(QString::fromUtf8(property)));
 }
 
 void Client::updateColorScheme()
 {
     Xcb::StringProperty property = fetchColorScheme();
     readColorScheme(property);
 }
 
 bool Client::isClient() const
 {
     return true;
 }
 
 NET::WindowType Client::windowType(bool direct, int supportedTypes) const
 {
     // TODO: does it make sense to cache the returned window type for SUPPORTED_MANAGED_WINDOW_TYPES_MASK?
     if (supportedTypes == 0) {
         supportedTypes = SUPPORTED_MANAGED_WINDOW_TYPES_MASK;
     }
     NET::WindowType wt = info->windowType(NET::WindowTypes(supportedTypes));
     if (direct) {
         return wt;
     }
     NET::WindowType wt2 = client_rules.checkType(wt);
     if (wt != wt2) {
         wt = wt2;
         info->setWindowType(wt);   // force hint change
     }
     // hacks here
     if (wt == NET::Unknown)   // this is more or less suggested in NETWM spec
         wt = isTransient() ? NET::Dialog : NET::Normal;
     return wt;
 }
 
 void Client::cancelFocusOutTimer()
 {
     if (m_focusOutTimer) {
         m_focusOutTimer->stop();
     }
 }
 
 xcb_window_t Client::frameId() const
 {
     return m_frame;
 }
 
 Xcb::Property Client::fetchShowOnScreenEdge() const
 {
     return Xcb::Property(false, window(), atoms->kde_screen_edge_show, XCB_ATOM_CARDINAL, 0, 1);
 }
 
 void Client::readShowOnScreenEdge(Xcb::Property &property)
 {
     //value comes in two parts, edge in the lower byte
     //then the type in the upper byte
     // 0 = autohide
     // 1 = raise in front on activate
 
     const uint32_t value = property.value<uint32_t>(ElectricNone);
     ElectricBorder border = ElectricNone;
     switch (value & 0xFF) {
     case 0:
         border = ElectricTop;
         break;
     case 1:
         border = ElectricRight;
         break;
     case 2:
         border = ElectricBottom;
         break;
     case 3:
         border = ElectricLeft;
         break;
     }
     if (border != ElectricNone) {
         disconnect(m_edgeRemoveConnection);
         bool successfullyHidden = false;
 
         if (((value >> 8) & 0xFF) == 1) {
             setKeepBelow(true);
             successfullyHidden = keepBelow(); //request could have failed due to user kwin rules
 
             m_edgeRemoveConnection = connect(this, &AbstractClient::keepBelowChanged, this, [this](){
                 if (!keepBelow()) {
                     ScreenEdges::self()->reserve(this, ElectricNone);
                 }
             });
         } else {
             hideClient(true);
             successfullyHidden = isHiddenInternal();
 
             m_edgeRemoveConnection = connect(this, &Client::geometryChanged, this, [this](){
                 ScreenEdges::self()->reserve(this, ElectricNone);
             });
         }
 
         if (successfullyHidden) {
             ScreenEdges::self()->reserve(this, border);
         } else {
             ScreenEdges::self()->reserve(this, ElectricNone);
         }
     } else if (!property.isNull() && property->type != XCB_ATOM_NONE) {
         // property value is incorrect, delete the property
         // so that the client knows that it is not hidden
         xcb_delete_property(connection(), window(), atoms->kde_screen_edge_show);
     } else {
         // restore
         // TODO: add proper unreserve
 
         //this will call showOnScreenEdge to reset the state
         ScreenEdges::self()->reserve(this, ElectricNone);
     }
 }
 
 void Client::updateShowOnScreenEdge()
 {
     Xcb::Property property = fetchShowOnScreenEdge();
     readShowOnScreenEdge(property);
 }
 
 void Client::showOnScreenEdge()
 {
     disconnect(m_edgeRemoveConnection);
 
     hideClient(false);
     setKeepBelow(false);
     xcb_delete_property(connection(), window(), atoms->kde_screen_edge_show);
 }
 
 void Client::addDamage(const QRegion &damage)
 {
     if (!ready_for_painting) { // avoid "setReadyForPainting()" function calling overhead
         if (syncRequest.counter == XCB_NONE) {  // cannot detect complete redraw, consider done now
             setReadyForPainting();
             setupWindowManagementInterface();
         }
     }
     repaints_region += damage;
     Toplevel::addDamage(damage);
 }
 
 bool Client::belongsToSameApplication(const AbstractClient *other, bool active_hack) const
 {
     const Client *c2 = dynamic_cast<const Client*>(other);
     if (!c2) {
         return false;
     }
     return Client::belongToSameApplication(this, c2, active_hack);
 }
 
 void Client::updateTabGroupStates(TabGroup::States states)
 {
     if (auto t = tabGroup()) {
         t->updateStates(this, states);
     }
 }
 
 QSize Client::resizeIncrements() const
 {
     return m_geometryHints.resizeIncrements();
 }
 
 } // namespace
 
diff --git a/shell_client.cpp b/shell_client.cpp
index 98c71d57e..5a8e5467b 100644
--- a/shell_client.cpp
+++ b/shell_client.cpp
@@ -1,1255 +1,1226 @@
 /********************************************************************
  KWin - the KDE window manager
  This file is part of the KDE project.
 
 Copyright (C) 2015 Martin Gräßlin <mgraesslin@kde.org>
 
 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 "shell_client.h"
 #include "composite.h"
 #include "cursor.h"
 #include "deleted.h"
 #include "screens.h"
 #include "wayland_server.h"
 #include "workspace.h"
 #include "virtualdesktops.h"
 #include "workspace.h"
 #include "decorations/decorationbridge.h"
 #include "decorations/decoratedclient.h"
 #include <KDecoration2/Decoration>
 #include <KDecoration2/DecoratedClient>
 
 #include <KWayland/Client/surface.h>
 #include <KWayland/Server/seat_interface.h>
 #include <KWayland/Server/shell_interface.h>
 #include <KWayland/Server/surface_interface.h>
 #include <KWayland/Server/buffer_interface.h>
 #include <KWayland/Server/plasmashell_interface.h>
 #include <KWayland/Server/shadow_interface.h>
 #include <KWayland/Server/server_decoration_interface.h>
 #include <KWayland/Server/qtsurfaceextension_interface.h>
 #include <KWayland/Server/plasmawindowmanagement_interface.h>
 #include <KDesktopFile>
 
 #include <QOpenGLFramebufferObject>
 #include <QWindow>
 
 using namespace KWayland::Server;
 
 namespace KWin
 {
 
 ShellClient::ShellClient(ShellSurfaceInterface *surface)
     : AbstractClient()
     , m_shellSurface(surface)
     , m_xdgShellSurface(nullptr)
     , m_xdgShellPopup(nullptr)
     , m_internal(surface->client() == waylandServer()->internalConnection())
 {
     setSurface(surface->surface());
     init();
 }
 
 ShellClient::ShellClient(XdgShellSurfaceInterface *surface)
     : AbstractClient()
     , m_shellSurface(nullptr)
     , m_xdgShellSurface(surface)
     , m_xdgShellPopup(nullptr)
     , m_internal(surface->client() == waylandServer()->internalConnection())
 {
     setSurface(surface->surface());
     init();
 }
 
 ShellClient::ShellClient(XdgShellPopupInterface *surface)
     : AbstractClient()
     , m_shellSurface(nullptr)
     , m_xdgShellSurface(nullptr)
     , m_xdgShellPopup(surface)
     , m_internal(surface->client() == waylandServer()->internalConnection())
 {
     setSurface(surface->surface());
     init();
 }
 
 ShellClient::~ShellClient() = default;
 
 template <class T>
 void ShellClient::initSurface(T *shellSurface)
 {
     m_caption = shellSurface->title();
     connect(shellSurface, &T::titleChanged, this, &ShellClient::captionChanged);
     connect(shellSurface, &T::destroyed, this, &ShellClient::destroyClient);
     connect(shellSurface, &T::titleChanged, this,
         [this] (const QString &s) {
             m_caption = s;
             emit captionChanged();
         }
     );
     connect(shellSurface, &T::moveRequested, this,
         [this] {
             // TODO: check the seat and serial
             performMouseCommand(Options::MouseMove, Cursor::pos());
         }
     );
     connect(shellSurface, &T::windowClassChanged, this, &ShellClient::updateIcon);
 
     setResourceClass(shellSurface->windowClass());
     connect(shellSurface, &T::windowClassChanged, this,
         [this] (const QByteArray &windowClass) {
             setResourceClass(windowClass);
         }
     );
     connect(shellSurface, &T::resizeRequested, this,
         [this] (SeatInterface *seat, quint32 serial, Qt::Edges edges) {
             // TODO: check the seat and serial
             Q_UNUSED(seat)
             Q_UNUSED(serial)
             if (!isResizable() || isShade()) {
                 return;
             }
             if (isMoveResize()) {
                 finishMoveResize(false);
             }
             setMoveResizePointerButtonDown(true);
             setMoveOffset(Cursor::pos() - pos());  // map from global
             setInvertedMoveOffset(rect().bottomRight() - moveOffset());
             setUnrestrictedMoveResize(false);
             auto toPosition = [edges] {
                 Position pos = PositionCenter;
                 if (edges.testFlag(Qt::TopEdge)) {
                     pos = PositionTop;
                 } else if (edges.testFlag(Qt::BottomEdge)) {
                     pos = PositionBottom;
                 }
                 if (edges.testFlag(Qt::LeftEdge)) {
                     pos = Position(pos | PositionLeft);
                 } else if (edges.testFlag(Qt::RightEdge)) {
                     pos = Position(pos | PositionRight);
                 }
                 return pos;
             };
             setMoveResizePointerMode(toPosition());
             if (!startMoveResize())
                 setMoveResizePointerButtonDown(false);
             updateCursor();
         }
     );
     connect(shellSurface, &T::maximizedChanged, this,
         [this] (bool maximized) {
             maximize(maximized ? MaximizeFull : MaximizeRestore);
         }
     );
     // TODO: consider output!
     connect(shellSurface, &T::fullscreenChanged, this, &ShellClient::clientFullScreenChanged);
 
     connect(shellSurface, &T::transientForChanged, this, &ShellClient::setTransient);
 }
 
 void ShellClient::init()
 {
     findInternalWindow();
     createWindowId();
     setupCompositing();
     SurfaceInterface *s = surface();
     Q_ASSERT(s);
     if (s->buffer()) {
         setReadyForPainting();
         if (shouldExposeToWindowManagement()) {
             setupWindowManagementInterface();
         }
         m_unmapped = false;
         m_clientSize = s->buffer()->size();
     } else {
         ready_for_painting = false;
     }
     if (m_internalWindow) {
         updateInternalWindowGeometry();
         setOnAllDesktops(true);
         updateDecoration(true);
     } else {
         doSetGeometry(QRect(QPoint(0, 0), m_clientSize));
         setDesktop(VirtualDesktopManager::self()->current());
     }
     if (waylandServer()->inputMethodConnection() == s->client()) {
         m_windowType = NET::OnScreenDisplay;
     }
 
     connect(s, &SurfaceInterface::sizeChanged, this,
         [this] {
             m_clientSize = surface()->buffer()->size();
             doSetGeometry(QRect(geom.topLeft(), m_clientSize + QSize(borderLeft() + borderRight(), borderTop() + borderBottom())));
             discardWindowPixmap();
         }
     );
     connect(s, &SurfaceInterface::unmapped, this, &ShellClient::unmap);
     connect(s, &SurfaceInterface::destroyed, this, &ShellClient::destroyClient);
     if (m_shellSurface) {
         initSurface(m_shellSurface);
     } else if (m_xdgShellSurface) {
         initSurface(m_xdgShellSurface);
         connect(m_xdgShellSurface, &XdgShellSurfaceInterface::windowMenuRequested, this,
             [this] (SeatInterface *seat, quint32 serial, const QPoint &surfacePos) {
                 // TODO: check serial on seat
                 Q_UNUSED(seat)
                 Q_UNUSED(serial)
                 performMouseCommand(Options::MouseOperationsMenu, pos() + surfacePos);
             }
         );
         connect(m_xdgShellSurface, &XdgShellSurfaceInterface::minimizeRequested, this,
             [this] {
                 performMouseCommand(Options::MouseMinimize, Cursor::pos());
             }
         );
         auto configure = [this] {
             if (m_closing) {
                 return;
             }
             m_xdgShellSurface->configure(xdgSurfaceStates());
         };
         connect(this, &AbstractClient::activeChanged, this, configure);
         connect(this, &AbstractClient::clientStartUserMovedResized, this, configure);
         connect(this, &AbstractClient::clientFinishUserMovedResized, this, configure);
     } else if (m_xdgShellPopup) {
         connect(m_xdgShellPopup, &XdgShellPopupInterface::destroyed, this, &ShellClient::destroyClient);
     }
     updateIcon();
 
     // setup shadow integration
     getShadow();
     connect(s, &SurfaceInterface::shadowChanged, this, &Toplevel::getShadow);
 
     setTransient();
     // check whether we have a ServerSideDecoration
     if (ServerSideDecorationInterface *deco = ServerSideDecorationInterface::get(s)) {
         installServerSideDecoration(deco);
     }
 
     updateColorScheme(QString());
 }
 
 void ShellClient::destroyClient()
 {
     m_closing = true;
     Deleted *del = nullptr;
     if (workspace()) {
         del = Deleted::create(this);
     }
     emit windowClosed(this, del);
     destroyWindowManagementInterface();
     destroyDecoration();
 
     if (workspace()) {
         StackingUpdatesBlocker blocker(workspace());
         if (transientFor()) {
             transientFor()->removeTransient(this);
         }
         for (auto it = transients().constBegin(); it != transients().constEnd();) {
             if ((*it)->transientFor() == this) {
                 removeTransient(*it);
                 it = transients().constBegin(); // restart, just in case something more has changed with the list
             } else {
                 ++it;
             }
         }
     }
     waylandServer()->removeClient(this);
 
     if (del) {
         del->unrefWindow();
     }
     m_shellSurface = nullptr;
     m_xdgShellSurface = nullptr;
     m_xdgShellPopup = nullptr;
     deleteClient(this);
 }
 
 void ShellClient::deleteClient(ShellClient *c)
 {
     delete c;
 }
 
 QStringList ShellClient::activities() const
 {
     // TODO: implement
     return QStringList();
 }
 
 QPoint ShellClient::clientContentPos() const
 {
     return -1 * clientPos();
 }
 
 QSize ShellClient::clientSize() const
 {
     // TODO: connect for changes
     return m_clientSize;
 }
 
 void ShellClient::debug(QDebug &stream) const
 {
     // TODO: implement
     Q_UNUSED(stream)
 }
 
 Layer ShellClient::layerForDock() const
 {
     if (m_plasmaShellSurface) {
         switch (m_plasmaShellSurface->panelBehavior()) {
         case PlasmaShellSurfaceInterface::PanelBehavior::WindowsCanCover:
             return NormalLayer;
         case PlasmaShellSurfaceInterface::PanelBehavior::AutoHide:
             return AboveLayer;
         case PlasmaShellSurfaceInterface::PanelBehavior::WindowsGoBelow:
         case PlasmaShellSurfaceInterface::PanelBehavior::AlwaysVisible:
             return DockLayer;
         default:
             Q_UNREACHABLE();
             break;
         }
     }
     return AbstractClient::layerForDock();
 }
 
 QRect ShellClient::transparentRect() const
 {
     // TODO: implement
     return QRect();
 }
 
 NET::WindowType ShellClient::windowType(bool direct, int supported_types) const
 {
     // TODO: implement
     Q_UNUSED(direct)
     Q_UNUSED(supported_types)
     return m_windowType;
 }
 
 double ShellClient::opacity() const
 {
     return m_opacity;
 }
 
 void ShellClient::setOpacity(double opacity)
 {
     const qreal newOpacity = qBound(0.0, opacity, 1.0);
     if (newOpacity == m_opacity) {
         return;
     }
     const qreal oldOpacity = m_opacity;
     m_opacity = newOpacity;
     addRepaintFull();
     emit opacityChanged(this, oldOpacity);
 }
 
 void ShellClient::addDamage(const QRegion &damage)
 {
     auto s = surface();
     if (s->buffer()->size().isValid()) {
         m_clientSize = s->buffer()->size();
         QPoint position = geom.topLeft();
         if (m_positionAfterResize.isValid()) {
             addLayerRepaint(geometry());
             position = m_positionAfterResize.point();
             m_positionAfterResize.clear();
         }
         doSetGeometry(QRect(position, m_clientSize + QSize(borderLeft() + borderRight(), borderTop() + borderBottom())));
     }
     markAsMapped();
     setDepth((s->buffer()->hasAlphaChannel() && !isDesktop()) ? 32 : 24);
     repaints_region += damage.translated(clientPos());
     Toplevel::addDamage(damage);
 }
 
 void ShellClient::setInternalFramebufferObject(const QSharedPointer<QOpenGLFramebufferObject> &fbo)
 {
     if (fbo.isNull()) {
         unmap();
         return;
     }
     markAsMapped();
     m_clientSize = fbo->size();
     doSetGeometry(QRect(geom.topLeft(), m_clientSize));
     Toplevel::setInternalFramebufferObject(fbo);
     Toplevel::addDamage(QRegion(0, 0, width(), height()));
 }
 
 void ShellClient::markAsMapped()
 {
     if (!m_unmapped) {
         return;
     }
 
     m_unmapped = false;
     if (!ready_for_painting) {
         setReadyForPainting();
     } else {
         addRepaintFull();
         emit windowShown(this);
     }
     if (shouldExposeToWindowManagement()) {
         setupWindowManagementInterface();
     }
 }
 
 void ShellClient::createDecoration(const QRect &oldGeom)
 {
     KDecoration2::Decoration *decoration = Decoration::DecorationBridge::self()->createDecoration(this);
     if (decoration) {
         QMetaObject::invokeMethod(decoration, "update", Qt::QueuedConnection);
         connect(decoration, &KDecoration2::Decoration::shadowChanged, this, &Toplevel::getShadow);
         connect(decoration, &KDecoration2::Decoration::bordersChanged, this,
             [this]() {
                 GeometryUpdatesBlocker blocker(this);
                 RequestGeometryBlocker requestBlocker(this);
                 QRect oldgeom = geometry();
                 if (!isShade())
                     checkWorkspacePosition(oldgeom);
                 emit geometryShapeChanged(this, oldgeom);
             }
         );
     }
     setDecoration(decoration);
     // TODO: ensure the new geometry still fits into the client area (e.g. maximized windows)
     doSetGeometry(QRect(oldGeom.topLeft(), m_clientSize + (decoration ? QSize(decoration->borderLeft() + decoration->borderRight(),
                                                                decoration->borderBottom() + decoration->borderTop()) : QSize())));
 
     emit geometryShapeChanged(this, oldGeom);
 }
 
 void ShellClient::updateDecoration(bool check_workspace_pos, bool force)
 {
     if (!force &&
             ((!isDecorated() && noBorder()) || (isDecorated() && !noBorder())))
         return;
     QRect oldgeom = geometry();
     QRect oldClientGeom = oldgeom.adjusted(borderLeft(), borderTop(), -borderRight(), -borderBottom());
     blockGeometryUpdates(true);
     if (force)
         destroyDecoration();
     if (!noBorder()) {
         createDecoration(oldgeom);
     } else
         destroyDecoration();
     if (m_serverDecoration && isDecorated()) {
         m_serverDecoration->setMode(KWayland::Server::ServerSideDecorationManagerInterface::Mode::Server);
     }
     getShadow();
     if (check_workspace_pos)
         checkWorkspacePosition(oldgeom, -2, oldClientGeom);
     blockGeometryUpdates(false);
 }
 
 void ShellClient::setGeometry(int x, int y, int w, int h, ForceGeometry_t force)
 {
     Q_UNUSED(force)
     // TODO: better merge with Client's implementation
     if (QSize(w, h) == geom.size()) {
         // size didn't change, update directly
         doSetGeometry(QRect(x, y, w, h));
     } else {
         // size did change, Client needs to provide a new buffer
         requestGeometry(QRect(x, y, w, h));
     }
 }
 
 void ShellClient::doSetGeometry(const QRect &rect)
 {
     if (geom == rect) {
         return;
     }
     if (!m_unmapped) {
         addWorkspaceRepaint(visibleRect());
     }
     const QRect old = geom;
     geom = rect;
 
     if (m_unmapped && m_geomMaximizeRestore.isEmpty() && !geom.isEmpty()) {
         // use first valid geometry as restore geometry
         // TODO: needs to interact with placing. The first valid geometry should be the placed one
         m_geomMaximizeRestore = geom;
     }
 
     if (!m_unmapped) {
         addWorkspaceRepaint(visibleRect());
     }
     if (m_internalWindow) {
         const QRect windowRect = QRect(geom.topLeft() + QPoint(borderLeft(), borderTop()),
                                        geom.size() - QSize(borderLeft() + borderRight(), borderTop() + borderBottom()));
         if (m_internalWindow->geometry() != windowRect) {
             m_internalWindow->setGeometry(windowRect);
         }
     }
     if (hasStrut()) {
         workspace()->updateClientArea();
     }
     emit geometryShapeChanged(this, old);
 }
 
 QByteArray ShellClient::windowRole() const
 {
     return QByteArray();
 }
 
 bool ShellClient::belongsToSameApplication(const AbstractClient *other, bool active_hack) const
 {
     Q_UNUSED(active_hack)
     if (auto s = other->surface()) {
         return s->client() == surface()->client();
     }
     return false;
 }
 
 void ShellClient::blockActivityUpdates(bool b)
 {
     Q_UNUSED(b)
 }
 
 QString ShellClient::caption(bool full, bool stripped) const
 {
     Q_UNUSED(full)
     Q_UNUSED(stripped)
     return m_caption;
 }
 
 void ShellClient::closeWindow()
 {
     if (m_xdgShellSurface && isCloseable()) {
         m_xdgShellSurface->close();
         return;
     }
     if (m_qtExtendedSurface && isCloseable()) {
         m_qtExtendedSurface->close();
     }
     if (m_internalWindow) {
         m_internalWindow->hide();
     }
 }
 
 AbstractClient *ShellClient::findModal(bool allow_itself)
 {
     Q_UNUSED(allow_itself)
     return nullptr;
 }
 
 bool ShellClient::isCloseable() const
 {
     if (m_windowType == NET::Desktop || m_windowType == NET::Dock) {
         return false;
     }
     if (m_xdgShellSurface) {
         return true;
     }
     if (m_internal) {
         return true;
     }
     return m_qtExtendedSurface ? true : false;
 }
 
 bool ShellClient::isFullScreenable() const
 {
     return false;
 }
 
 bool ShellClient::isFullScreen() const
 {
     return m_fullScreen;
 }
 
 bool ShellClient::isMaximizable() const
 {
     if (m_internal) {
         return false;
     }
     return true;
 }
 
 bool ShellClient::isMinimizable() const
 {
     return (!m_plasmaShellSurface || m_plasmaShellSurface->role() == PlasmaShellSurfaceInterface::Role::Normal);
 }
 
-QRect ShellClient::iconGeometry() const
-{
-    if (!windowManagementInterface()) {
-        // window management interface is only available if the surface is mapped
-        return QRect();
-    }
-
-    int minDistance = INT_MAX;
-    ShellClient *candidatePanel = nullptr;
-    QRect candidateGeom;
-
-    for (auto i = windowManagementInterface()->minimizedGeometries().constBegin(), end = windowManagementInterface()->minimizedGeometries().constEnd(); i != end; ++i) {
-        ShellClient *client = waylandServer()->findClient(i.key());
-        if (!client) {
-            continue;
-        }
-        const int distance = QPoint(client->pos() - pos()).manhattanLength();
-        if (distance < minDistance) {
-            minDistance = distance;
-            candidatePanel = client;
-            candidateGeom = i.value();
-        }
-    }
-    if (!candidatePanel) {
-        return QRect();
-    }
-    return candidateGeom.translated(candidatePanel->pos());
-}
-
 bool ShellClient::isMovable() const
 {
     if (m_plasmaShellSurface) {
         return m_plasmaShellSurface->role() == PlasmaShellSurfaceInterface::Role::Normal;
     }
     if (m_xdgShellPopup) {
         return false;
     }
     return true;
 }
 
 bool ShellClient::isMovableAcrossScreens() const
 {
     if (m_plasmaShellSurface) {
         return m_plasmaShellSurface->role() == PlasmaShellSurfaceInterface::Role::Normal;
     }
     if (m_xdgShellPopup) {
         return false;
     }
     return true;
 }
 
 bool ShellClient::isResizable() const
 {
     if (m_plasmaShellSurface) {
         return m_plasmaShellSurface->role() == PlasmaShellSurfaceInterface::Role::Normal;
     }
     if (m_xdgShellPopup) {
         return false;
     }
     return true;
 }
 
 bool ShellClient::isShown(bool shaded_is_shown) const
 {
     Q_UNUSED(shaded_is_shown)
     return !m_closing && !m_unmapped && !isMinimized();
 }
 
 void ShellClient::hideClient(bool hide)
 {
     Q_UNUSED(hide)
 }
 
 static bool changeMaximizeRecursion = false;
 void ShellClient::changeMaximize(bool horizontal, bool vertical, bool adjust)
 {
     if (changeMaximizeRecursion) {
         return;
     }
     MaximizeMode oldMode = m_maximizeMode;
     StackingUpdatesBlocker blocker(workspace());
     RequestGeometryBlocker geometryBlocker(this);
     // 'adjust == true' means to update the size only, e.g. after changing workspace size
     if (!adjust) {
         if (vertical)
             m_maximizeMode = MaximizeMode(m_maximizeMode ^ MaximizeVertical);
         if (horizontal)
             m_maximizeMode = MaximizeMode(m_maximizeMode ^ MaximizeHorizontal);
     }
     // TODO: add more checks as in Client
 
     // call into decoration update borders
     if (isDecorated() && decoration()->client() && !(options->borderlessMaximizedWindows() && m_maximizeMode == KWin::MaximizeFull)) {
         changeMaximizeRecursion = true;
         const auto c = decoration()->client().data();
         if ((m_maximizeMode & MaximizeVertical) != (oldMode & MaximizeVertical)) {
             emit c->maximizedVerticallyChanged(m_maximizeMode & MaximizeVertical);
         }
         if ((m_maximizeMode & MaximizeHorizontal) != (oldMode & MaximizeHorizontal)) {
             emit c->maximizedHorizontallyChanged(m_maximizeMode & MaximizeHorizontal);
         }
         if ((m_maximizeMode == MaximizeFull) != (oldMode == MaximizeFull)) {
             emit c->maximizedChanged(m_maximizeMode & MaximizeFull);
         }
         changeMaximizeRecursion = false;
     }
 
     // TODO: check rules
     if (m_maximizeMode == MaximizeFull) {
         m_geomMaximizeRestore = geometry();
         requestGeometry(workspace()->clientArea(MaximizeArea, this));
         workspace()->raiseClient(this);
     } else {
         if (m_geomMaximizeRestore.isValid()) {
             requestGeometry(m_geomMaximizeRestore);
         } else {
             requestGeometry(workspace()->clientArea(PlacementArea, this));
         }
     }
 }
 
 MaximizeMode ShellClient::maximizeMode() const
 {
     return m_maximizeMode;
 }
 
 bool ShellClient::noBorder() const
 {
     if (isInternal()) {
         return m_internalWindowFlags.testFlag(Qt::FramelessWindowHint) || m_internalWindowFlags.testFlag(Qt::Popup);
     }
     if (m_serverDecoration) {
         if (m_serverDecoration->mode() == ServerSideDecorationManagerInterface::Mode::Server) {
             return m_userNoBorder;
         }
     }
     return true;
 }
 
 const WindowRules *ShellClient::rules() const
 {
     static WindowRules s_rules;
     return &s_rules;
 }
 
 void ShellClient::setFullScreen(bool set, bool user)
 {
     Q_UNUSED(set)
     Q_UNUSED(user)
 }
 
 void ShellClient::setNoBorder(bool set)
 {
     if (!userCanSetNoBorder()) {
         return;
     }
     set = rules()->checkNoBorder(set);
     if (m_userNoBorder == set) {
         return;
     }
     m_userNoBorder = set;
     updateDecoration(true, false);
     updateWindowRules(Rules::NoBorder);
 }
 
 void ShellClient::setOnAllActivities(bool set)
 {
     Q_UNUSED(set)
 }
 
 void ShellClient::setShortcut(const QString &cut)
 {
     Q_UNUSED(cut)
 }
 
 const QKeySequence &ShellClient::shortcut() const
 {
     static QKeySequence seq;
     return seq;
 }
 
 void ShellClient::takeFocus()
 {
     if (rules()->checkAcceptFocus(wantsInput())) {
         setActive(true);
     }
 
     bool breakShowingDesktop = !keepAbove() && !isOnScreenDisplay();
     if (breakShowingDesktop) {
         // check that it doesn't belong to the desktop
         const auto &clients = waylandServer()->clients();
         for (auto c: clients) {
             if (!belongsToSameApplication(c, false)) {
                 continue;
             }
             if (c->isDesktop()) {
                 breakShowingDesktop = false;
                 break;
             }
         }
     }
     if (breakShowingDesktop)
         workspace()->setShowingDesktop(false);
 }
 
 void ShellClient::doSetActive()
 {
     if (!isActive()) {
         return;
     }
     StackingUpdatesBlocker blocker(workspace());
     workspace()->focusToNull();
 }
 
 void ShellClient::updateWindowRules(Rules::Types selection)
 {
     Q_UNUSED(selection)
 }
 
 bool ShellClient::userCanSetFullScreen() const
 {
     return false;
 }
 
 bool ShellClient::userCanSetNoBorder() const
 {
     if (m_serverDecoration && m_serverDecoration->mode() == ServerSideDecorationManagerInterface::Mode::Server) {
         return !isFullScreen() && !isShade() && !tabGroup();
     }
     if (m_internal) {
         return !m_internalWindowFlags.testFlag(Qt::FramelessWindowHint) || m_internalWindowFlags.testFlag(Qt::Popup);
     }
     return false;
 }
 
 bool ShellClient::wantsInput() const
 {
     return rules()->checkAcceptFocus(acceptsFocus());
 }
 
 bool ShellClient::acceptsFocus() const
 {
     if (isInternal()) {
         return false;
     }
     if (waylandServer()->inputMethodConnection() == surface()->client()) {
         return false;
     }
     if (m_plasmaShellSurface) {
         if (m_plasmaShellSurface->role() == PlasmaShellSurfaceInterface::Role::OnScreenDisplay ||
             m_plasmaShellSurface->role() == PlasmaShellSurfaceInterface::Role::ToolTip ||
             m_plasmaShellSurface->role() == PlasmaShellSurfaceInterface::Role::Notification) {
             return false;
         }
     }
     if (m_shellSurface) {
         if (m_shellSurface->isPopup()) {
             return false;
         }
         // if the window is not visible it doesn't get input
         return m_shellSurface->acceptsKeyboardFocus() && isShown(true);
     }
     if (m_xdgShellSurface) {
         // TODO: proper
         return true;
     }
     return false;
 }
 
 void ShellClient::createWindowId()
 {
     if (m_internalWindow) {
         m_windowId = m_internalWindow->winId();
     } else {
         m_windowId = waylandServer()->createWindowId(surface());
     }
 }
 
 void ShellClient::findInternalWindow()
 {
     if (surface()->client() != waylandServer()->internalConnection()) {
         return;
     }
     const QWindowList windows = kwinApp()->topLevelWindows();
     for (QWindow *w: windows) {
         auto s = KWayland::Client::Surface::fromWindow(w);
         if (!s) {
             continue;
         }
         if (s->id() != surface()->id()) {
             continue;
         }
         m_internalWindow = w;
         m_internalWindowFlags = m_internalWindow->flags();
         connect(m_internalWindow, &QWindow::xChanged, this, &ShellClient::updateInternalWindowGeometry);
         connect(m_internalWindow, &QWindow::yChanged, this, &ShellClient::updateInternalWindowGeometry);
         connect(m_internalWindow, &QWindow::destroyed, this, [this] { m_internalWindow = nullptr; });
 
         // Try reading the window type from the QWindow. PlasmaCore.Dialog provides a dynamic type property
         // let's check whether it exists, if it does it's our window type
         const QVariant windowType = m_internalWindow->property("type");
         if (!windowType.isNull()) {
             m_windowType = static_cast<NET::WindowType>(windowType.toInt());
         }
         return;
     }
 }
 
 void ShellClient::updateInternalWindowGeometry()
 {
     if (!m_internalWindow) {
         return;
     }
     doSetGeometry(QRect(m_internalWindow->geometry().topLeft() - QPoint(borderLeft(), borderTop()),
                         m_internalWindow->geometry().size() + QSize(borderLeft() + borderRight(), borderTop() + borderBottom())));
 }
 
 bool ShellClient::isInternal() const
 {
     return m_internal;
 }
 
 bool ShellClient::isLockScreen() const
 {
     return surface()->client() == waylandServer()->screenLockerClientConnection();
 }
 
 bool ShellClient::isInputMethod() const
 {
     if (m_internal && m_internalWindow) {
         return m_internalWindow->property("__kwin_input_method").toBool();
     }
     return surface()->client() == waylandServer()->inputMethodConnection();
 }
 
 void ShellClient::requestGeometry(const QRect &rect)
 {
     if (m_requestGeometryBlockCounter != 0) {
         m_blockedRequestGeometry = rect;
         return;
     }
     m_positionAfterResize.setPoint(rect.topLeft());
     const QSize size = rect.size() - QSize(borderLeft() + borderRight(), borderTop() + borderBottom());
     if (m_shellSurface) {
         m_shellSurface->requestSize(size);
     }
     if (m_xdgShellSurface) {
         m_xdgShellSurface->configure(xdgSurfaceStates(), size);
     }
     m_blockedRequestGeometry = QRect();
     if (m_internal) {
         m_internalWindow->setGeometry(QRect(rect.topLeft() + QPoint(borderLeft(), borderTop()), rect.size() - QSize(borderLeft() + borderRight(), borderTop() + borderBottom())));
     }
 }
 
 void ShellClient::clientFullScreenChanged(bool fullScreen)
 {
     StackingUpdatesBlocker blocker(workspace());
     workspace()->updateClientLayer(this);   // active fullscreens get different layer
 
     const bool emitSignal = m_fullScreen != fullScreen;
     m_fullScreen = fullScreen;
 
     if (fullScreen) {
         m_geomFsRestore = geometry();
         requestGeometry(workspace()->clientArea(FullScreenArea, this));
         workspace()->raiseClient(this);
     } else {
         if (m_geomFsRestore.isValid()) {
             requestGeometry(m_geomFsRestore);
         } else {
             requestGeometry(workspace()->clientArea(MaximizeArea, this));
         }
     }
     if (emitSignal) {
         emit fullScreenChanged();
     }
 }
 
 void ShellClient::resizeWithChecks(int w, int h, ForceGeometry_t force)
 {
     Q_UNUSED(force)
     QRect area = workspace()->clientArea(WorkArea, this);
     // don't allow growing larger than workarea
     if (w > area.width()) {
         w = area.width();
     }
     if (h > area.height()) {
         h = area.height();
     }
     if (m_shellSurface) {
         m_shellSurface->requestSize(QSize(w, h));
     }
     if (m_xdgShellSurface) {
         m_xdgShellSurface->configure(xdgSurfaceStates(), QSize(w, h));
     }
     if (m_internal) {
         m_internalWindow->setGeometry(QRect(pos() + QPoint(borderLeft(), borderTop()), QSize(w, h) - QSize(borderLeft() + borderRight(), borderTop() + borderBottom())));
     }
 }
 
 void ShellClient::unmap()
 {
     m_unmapped = true;
     destroyWindowManagementInterface();
     if (Workspace::self()) {
         addWorkspaceRepaint(visibleRect());
         workspace()->clientHidden(this);
     }
     emit windowHidden(this);
 }
 
 void ShellClient::installPlasmaShellSurface(PlasmaShellSurfaceInterface *surface)
 {
     m_plasmaShellSurface = surface;
     auto updatePosition = [this, surface] {
         doSetGeometry(QRect(surface->position(), m_clientSize + QSize(borderLeft() + borderRight(), borderTop() + borderBottom())));
     };
     auto updateRole = [this, surface] {
         NET::WindowType type = NET::Unknown;
         switch (surface->role()) {
         case PlasmaShellSurfaceInterface::Role::Desktop:
             type = NET::Desktop;
             break;
         case PlasmaShellSurfaceInterface::Role::Panel:
             type = NET::Dock;
             break;
         case PlasmaShellSurfaceInterface::Role::OnScreenDisplay:
             type = NET::OnScreenDisplay;
             break;
         case PlasmaShellSurfaceInterface::Role::Notification:
             type = NET::Notification;
             break;
         case PlasmaShellSurfaceInterface::Role::ToolTip:
             type = NET::Tooltip;
             break;
         case PlasmaShellSurfaceInterface::Role::Normal:
         default:
             type = NET::Normal;
             break;
         }
         if (type != m_windowType) {
             m_windowType = type;
             if (m_windowType == NET::Desktop || type == NET::Dock || type == NET::OnScreenDisplay || type == NET::Notification || type == NET::Tooltip) {
                 setOnAllDesktops(true);
             }
             workspace()->updateClientArea();
         }
     };
     connect(surface, &PlasmaShellSurfaceInterface::positionChanged, this, updatePosition);
     connect(surface, &PlasmaShellSurfaceInterface::roleChanged, this, updateRole);
     connect(surface, &PlasmaShellSurfaceInterface::panelBehaviorChanged, this,
         [] {
             workspace()->updateClientArea();
         }
     );
     updatePosition();
     updateRole();
 
     setSkipTaskbar(surface->skipTaskbar());
     connect(surface, &PlasmaShellSurfaceInterface::skipTaskbarChanged, this, [this] {
         setSkipTaskbar(m_plasmaShellSurface->skipTaskbar());
     });
 }
 
 bool ShellClient::isInitialPositionSet() const
 {
     if (m_plasmaShellSurface) {
         return m_plasmaShellSurface->isPositionSet();
     }
     return false;
 }
 
 void ShellClient::installQtExtendedSurface(QtExtendedSurfaceInterface *surface)
 {
     m_qtExtendedSurface = surface;
 
     connect(m_qtExtendedSurface.data(), &QtExtendedSurfaceInterface::raiseRequested, this, [this]() {
         workspace()->raiseClientRequest(this);
     });
     connect(m_qtExtendedSurface.data(), &QtExtendedSurfaceInterface::lowerRequested, this, [this]() {
         workspace()->lowerClientRequest(this);
     });
 }
 
 bool ShellClient::hasStrut() const
 {
     if (!isShown(true)) {
         return false;
     }
     if (!m_plasmaShellSurface) {
         return false;
     }
     if (m_plasmaShellSurface->role() != PlasmaShellSurfaceInterface::Role::Panel) {
         return false;
     }
     return m_plasmaShellSurface->panelBehavior() != PlasmaShellSurfaceInterface::PanelBehavior::WindowsGoBelow;
 }
 
 void ShellClient::updateIcon()
 {
     QString desktopFile;
     if (m_shellSurface) {
         desktopFile = QString::fromUtf8(m_shellSurface->windowClass());
     }
     if (desktopFile.isEmpty()) {
         setIcon(QIcon());
     }
     if (!desktopFile.endsWith(QLatin1String(".desktop"))) {
         desktopFile.append(QLatin1String(".desktop"));
     }
     KDesktopFile df(desktopFile);
     setIcon(QIcon::fromTheme(df.readIcon()));
 }
 
 bool ShellClient::isTransient() const
 {
     return m_transient;
 }
 
 void ShellClient::setTransient()
 {
     SurfaceInterface *s = nullptr;
     if (m_shellSurface) {
         s = m_shellSurface->transientFor().data();
     }
     if (m_xdgShellSurface) {
         if (auto transient = m_xdgShellSurface->transientFor().data()) {
             s = transient->surface();
         }
     }
     if (m_xdgShellPopup) {
         s = m_xdgShellPopup->transientFor().data();
     }
     auto t = waylandServer()->findClient(s);
     if (t != transientFor()) {
         // remove from main client
         if (transientFor())
             transientFor()->removeTransient(this);
         setTransientFor(t);
         if (t) {
             t->addTransient(this);
         }
     }
     m_transient = (s != nullptr);
 }
 
 bool ShellClient::hasTransientPlacementHint() const
 {
     return isTransient() && transientFor() != nullptr;
 }
 
 QPoint ShellClient::transientPlacementHint() const
 {
     if (m_shellSurface) {
         return m_shellSurface->transientOffset();
     }
     if (m_xdgShellPopup) {
         return m_xdgShellPopup->transientOffset();
     }
     return QPoint();
 }
 
 bool ShellClient::isWaitingForMoveResizeSync() const
 {
     return m_positionAfterResize.isValid();
 }
 
 void ShellClient::doResizeSync()
 {
     requestGeometry(moveResizeGeometry());
 }
 
 QMatrix4x4 ShellClient::inputTransformation() const
 {
     QMatrix4x4 m = Toplevel::inputTransformation();
     m.translate(-borderLeft(), -borderTop());
     return m;
 }
 
 void ShellClient::installServerSideDecoration(KWayland::Server::ServerSideDecorationInterface *deco)
 {
     if (m_serverDecoration == deco) {
         return;
     }
     m_serverDecoration = deco;
     connect(m_serverDecoration, &ServerSideDecorationInterface::destroyed, this,
         [this] {
             m_serverDecoration = nullptr;
             if (m_closing || !Workspace::self()) {
                 return;
             }
             if (!m_unmapped) {
                 // maybe delay to next event cycle in case the ShellClient is getting destroyed, too
                 updateDecoration(true);
             }
         }
     );
     if (!m_unmapped) {
         updateDecoration(true);
     }
     connect(m_serverDecoration, &ServerSideDecorationInterface::modeRequested, this,
         [this] (ServerSideDecorationManagerInterface::Mode mode) {
             const bool changed = mode != m_serverDecoration->mode();
             // always acknowledge the requested mode
             m_serverDecoration->setMode(mode);
             if (changed && !m_unmapped) {
                 updateDecoration(false);
             }
         }
     );
 }
 
 bool ShellClient::shouldExposeToWindowManagement()
 {
     if (isInternal()) {
         return false;
     }
     if (isLockScreen()) {
         return false;
     }
     if (m_shellSurface) {
         if (m_shellSurface->isTransient() && !m_shellSurface->acceptsKeyboardFocus()) {
             return false;
         }
     }
     return true;
 }
 
 KWayland::Server::XdgShellSurfaceInterface::States ShellClient::xdgSurfaceStates() const
 {
     XdgShellSurfaceInterface::States states;
     if (isActive()) {
         states |= XdgShellSurfaceInterface::State::Activated;
     }
     if (isFullScreen()) {
         states |= XdgShellSurfaceInterface::State::Fullscreen;
     }
     if (maximizeMode() == MaximizeMode::MaximizeFull) {
         states |= XdgShellSurfaceInterface::State::Maximized;
     }
     if (isResize()) {
         states |= XdgShellSurfaceInterface::State::Resizing;
     }
     return states;
 }
 
 void ShellClient::doMinimize()
 {
     if (isMinimized()) {
         workspace()->clientHidden(this);
     } else {
         emit windowShown(this);
     }
 }
 
 bool ShellClient::setupCompositing()
 {
     if (m_compositingSetup) {
         return true;
     }
     m_compositingSetup = Toplevel::setupCompositing();
     return m_compositingSetup;
 }
 
 void ShellClient::finishCompositing(ReleaseReason releaseReason)
 {
     m_compositingSetup = false;
     Toplevel::finishCompositing(releaseReason);
 }
 
 }
diff --git a/shell_client.h b/shell_client.h
index 86520929d..ac3e1f62a 100644
--- a/shell_client.h
+++ b/shell_client.h
@@ -1,222 +1,221 @@
 /********************************************************************
  KWin - the KDE window manager
  This file is part of the KDE project.
 
 Copyright (C) 2015 Martin Gräßlin <mgraesslin@kde.org>
 
 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/>.
 *********************************************************************/
 #ifndef KWIN_SHELL_CLIENT_H
 #define KWIN_SHELL_CLIENT_H
 
 #include "abstract_client.h"
 #include <KWayland/Server/xdgshell_interface.h>
 
 namespace KWayland
 {
 namespace Server
 {
 class ShellSurfaceInterface;
 class ServerSideDecorationInterface;
 class PlasmaShellSurfaceInterface;
 class QtExtendedSurfaceInterface;
 }
 }
 
 namespace KWin
 {
 
 class KWIN_EXPORT ShellClient : public AbstractClient
 {
     Q_OBJECT
 public:
     ShellClient(KWayland::Server::ShellSurfaceInterface *surface);
     ShellClient(KWayland::Server::XdgShellSurfaceInterface *surface);
     ShellClient(KWayland::Server::XdgShellPopupInterface *surface);
     virtual ~ShellClient();
 
     QStringList activities() const override;
     QPoint clientContentPos() const override;
     QSize clientSize() const override;
     QRect transparentRect() const override;
     NET::WindowType windowType(bool direct = false, int supported_types = 0) const override;
     void debug(QDebug &stream) const override;
     double opacity() const override;
     void setOpacity(double opacity) override;
     QByteArray windowRole() const override;
 
     KWayland::Server::ShellSurfaceInterface *shellSurface() const {
         return m_shellSurface;
     }
 
     void blockActivityUpdates(bool b = true) override;
     QString caption(bool full = true, bool stripped = false) const override;
     void closeWindow() override;
     AbstractClient *findModal(bool allow_itself = false) override;
     bool isCloseable() const override;
     bool isFullScreenable() const override;
     bool isFullScreen() const override;
     bool isMaximizable() const override;
     bool isMinimizable() const override;
-    QRect iconGeometry() const override;
     bool isMovable() const override;
     bool isMovableAcrossScreens() const override;
     bool isResizable() const override;
     bool isShown(bool shaded_is_shown) const override;
     bool isHiddenInternal() const override {
         return m_unmapped;
     }
     void hideClient(bool hide) override;
     MaximizeMode maximizeMode() const override;
     QRect geometryRestore() const override {
         return m_geomMaximizeRestore;
     }
     bool noBorder() const override;
     const WindowRules *rules() const override;
     void setFullScreen(bool set, bool user = true) override;
     void setNoBorder(bool set) override;
     void updateDecoration(bool check_workspace_pos, bool force = false) override;
     void setOnAllActivities(bool set) override;
     void setShortcut(const QString &cut) override;
     const QKeySequence &shortcut() const override;
     void takeFocus() override;
     void updateWindowRules(Rules::Types selection) override;
     bool userCanSetFullScreen() const override;
     bool userCanSetNoBorder() const override;
     bool wantsInput() const override;
     using AbstractClient::resizeWithChecks;
     void resizeWithChecks(int w, int h, ForceGeometry_t force = NormalGeometrySet) override;
     using AbstractClient::setGeometry;
     void setGeometry(int x, int y, int w, int h, ForceGeometry_t force = NormalGeometrySet) override;
     bool hasStrut() const override;
 
     void setInternalFramebufferObject(const QSharedPointer<QOpenGLFramebufferObject> &fbo) override;
 
     quint32 windowId() const override {
         return m_windowId;
     }
     bool isInternal() const;
     bool isLockScreen() const override;
     bool isInputMethod() const override;
     QWindow *internalWindow() const {
         return m_internalWindow;
     }
 
     void installPlasmaShellSurface(KWayland::Server::PlasmaShellSurfaceInterface *surface);
     void installQtExtendedSurface(KWayland::Server::QtExtendedSurfaceInterface *surface);
     void installServerSideDecoration(KWayland::Server::ServerSideDecorationInterface *decoration);
 
     bool isInitialPositionSet() const;
 
     bool isTransient() const override;
     bool hasTransientPlacementHint() const override;
     QPoint transientPlacementHint() const override;
 
     QMatrix4x4 inputTransformation() const override;
 
     bool setupCompositing() override;
     void finishCompositing(ReleaseReason releaseReason = ReleaseReason::Release) override;
 
 protected:
     void addDamage(const QRegion &damage) override;
     bool belongsToSameApplication(const AbstractClient *other, bool active_hack) const override;
     void doSetActive() override;
     Layer layerForDock() const override;
     void changeMaximize(bool horizontal, bool vertical, bool adjust) override;
     void setGeometryRestore(const QRect &geo) override {
         m_geomMaximizeRestore = geo;
     }
     void doResizeSync() override;
     bool isWaitingForMoveResizeSync() const override;
     bool acceptsFocus() const override;
     void doMinimize() override;
 
 private Q_SLOTS:
     void clientFullScreenChanged(bool fullScreen);
 
 private:
     void init();
     template <class T>
     void initSurface(T *shellSurface);
     void requestGeometry(const QRect &rect);
     void doSetGeometry(const QRect &rect);
     void createDecoration(const QRect &oldgeom);
     void destroyClient();
     void unmap();
     void createWindowId();
     void findInternalWindow();
     void updateInternalWindowGeometry();
     void updateIcon();
     void markAsMapped();
     void setTransient();
     bool shouldExposeToWindowManagement();
     KWayland::Server::XdgShellSurfaceInterface::States xdgSurfaceStates() const;
     static void deleteClient(ShellClient *c);
 
     KWayland::Server::ShellSurfaceInterface *m_shellSurface;
     KWayland::Server::XdgShellSurfaceInterface *m_xdgShellSurface;
     KWayland::Server::XdgShellPopupInterface *m_xdgShellPopup;
     QSize m_clientSize;
 
     ClearablePoint m_positionAfterResize; // co-ordinates saved from a requestGeometry call, real geometry will be updated after the next damage event when the client has resized
     QRect m_geomFsRestore; //size and position of the window before it was set to fullscreen
     bool m_closing = false;
     quint32 m_windowId = 0;
     QWindow *m_internalWindow = nullptr;
     Qt::WindowFlags m_internalWindowFlags = Qt::WindowFlags();
     bool m_unmapped = true;
     MaximizeMode m_maximizeMode = MaximizeRestore;
     QRect m_geomMaximizeRestore; // size and position of the window before it was set to maximize
     NET::WindowType m_windowType = NET::Normal;
     QPointer<KWayland::Server::PlasmaShellSurfaceInterface> m_plasmaShellSurface;
     QPointer<KWayland::Server::QtExtendedSurfaceInterface> m_qtExtendedSurface;
     KWayland::Server::ServerSideDecorationInterface *m_serverDecoration = nullptr;
     bool m_userNoBorder = false;
     bool m_fullScreen = false;
     bool m_transient = false;
     bool m_internal;
     qreal m_opacity = 1.0;
 
     class RequestGeometryBlocker {
     public:
         RequestGeometryBlocker(ShellClient *client)
             : m_client(client)
         {
             m_client->m_requestGeometryBlockCounter++;
         }
         ~RequestGeometryBlocker()
         {
             m_client->m_requestGeometryBlockCounter--;
             if (m_client->m_requestGeometryBlockCounter == 0) {
                 if (m_client->m_blockedRequestGeometry.isValid()) {
                     m_client->requestGeometry(m_client->m_blockedRequestGeometry);
                 }
             }
         }
     private:
         ShellClient *m_client;
     };
     friend class RequestGeometryBlocker;
     int m_requestGeometryBlockCounter = 0;
     QRect m_blockedRequestGeometry;
     QString m_caption;
 
     bool m_compositingSetup = false;
 };
 
 }
 
 Q_DECLARE_METATYPE(KWin::ShellClient*)
 
 #endif
diff --git a/wayland_server.cpp b/wayland_server.cpp
index 83709d12a..099adcd26 100644
--- a/wayland_server.cpp
+++ b/wayland_server.cpp
@@ -1,636 +1,641 @@
 /********************************************************************
  KWin - the KDE window manager
  This file is part of the KDE project.
 
 Copyright (C) 2015 Martin Gräßlin <mgraesslin@kde.org>
 
 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 "wayland_server.h"
 #include "client.h"
 #include "platform.h"
 #include "composite.h"
 #include "screens.h"
 #include "shell_client.h"
 #include "workspace.h"
 
 // Client
 #include <KWayland/Client/connection_thread.h>
 #include <KWayland/Client/event_queue.h>
 #include <KWayland/Client/registry.h>
 #include <KWayland/Client/shm_pool.h>
 #include <KWayland/Client/surface.h>
 // Server
 #include <KWayland/Server/compositor_interface.h>
 #include <KWayland/Server/datadevicemanager_interface.h>
 #include <KWayland/Server/display.h>
 #include <KWayland/Server/dpms_interface.h>
 #include <KWayland/Server/idle_interface.h>
 #include <KWayland/Server/output_interface.h>
 #include <KWayland/Server/plasmashell_interface.h>
 #include <KWayland/Server/plasmawindowmanagement_interface.h>
 #include <KWayland/Server/qtsurfaceextension_interface.h>
 #include <KWayland/Server/seat_interface.h>
 #include <KWayland/Server/server_decoration_interface.h>
 #include <KWayland/Server/shadow_interface.h>
 #include <KWayland/Server/subcompositor_interface.h>
 #include <KWayland/Server/blur_interface.h>
 #include <KWayland/Server/shell_interface.h>
 #include <KWayland/Server/outputmanagement_interface.h>
 #include <KWayland/Server/outputconfiguration_interface.h>
 #include <KWayland/Server/xdgshell_interface.h>
 
 // Qt
 #include <QThread>
 #include <QWindow>
 
 // system
 #include <sys/types.h>
 #include <sys/socket.h>
 #include <unistd.h>
 
 //screenlocker
 #include <KScreenLocker/KsldApp>
 
 using namespace KWayland::Server;
 
 namespace KWin
 {
 
 KWIN_SINGLETON_FACTORY(WaylandServer)
 
 WaylandServer::WaylandServer(QObject *parent)
     : QObject(parent)
 {
     qRegisterMetaType<KWayland::Server::SurfaceInterface *>("KWayland::Server::SurfaceInterface *");
     qRegisterMetaType<KWayland::Server::OutputInterface::DpmsMode>();
 
     connect(kwinApp(), &Application::screensCreated, this, &WaylandServer::initOutputs);
     connect(kwinApp(), &Application::x11ConnectionChanged, this, &WaylandServer::setupX11ClipboardSync);
 }
 
 WaylandServer::~WaylandServer()
 {
     destroyInputMethodConnection();
 }
 
 void WaylandServer::destroyInternalConnection()
 {
     emit terminatingInternalClientConnection();
     if (m_internalConnection.client) {
         delete m_internalConnection.registry;
         delete m_internalConnection.shm;
         dispatch();
         m_internalConnection.client->deleteLater();
         m_internalConnection.clientThread->quit();
         m_internalConnection.clientThread->wait();
         delete m_internalConnection.clientThread;
         m_internalConnection.client = nullptr;
         m_internalConnection.server->destroy();
         m_internalConnection.server = nullptr;
     }
 }
 
 void WaylandServer::terminateClientConnections()
 {
     destroyInternalConnection();
     destroyInputMethodConnection();
     if (m_display) {
         const auto connections = m_display->connections();
         for (auto it = connections.begin(); it != connections.end(); ++it) {
             (*it)->destroy();
         }
     }
 }
 
 template <class T>
 void WaylandServer::createSurface(T *surface)
 {
     if (!Workspace::self()) {
         // it's possible that a Surface gets created before Workspace is created
         return;
     }
     if (surface->client() == m_xwayland.client) {
         // skip Xwayland clients, those are created using standard X11 way
         return;
     }
     if (surface->client() == m_screenLockerClientConnection) {
         ScreenLocker::KSldApp::self()->lockScreenShown();
     }
     auto client = new ShellClient(surface);
     if (client->isInternal()) {
         m_internalClients << client;
     } else {
         m_clients << client;
     }
     if (client->readyForPainting()) {
         emit shellClientAdded(client);
     } else {
         connect(client, &ShellClient::windowShown, this, &WaylandServer::shellClientShown);
     }
 }
 
 bool WaylandServer::init(const QByteArray &socketName, InitalizationFlags flags)
 {
     m_initFlags = flags;
     m_display = new KWayland::Server::Display(this);
     if (!socketName.isNull() && !socketName.isEmpty()) {
         m_display->setSocketName(QString::fromUtf8(socketName));
     }
     m_display->start();
     if (!m_display->isRunning()) {
         return false;
     }
     m_compositor = m_display->createCompositor(m_display);
     m_compositor->create();
     connect(m_compositor, &CompositorInterface::surfaceCreated, this,
         [this] (SurfaceInterface *surface) {
             // check whether we have a Toplevel with the Surface's id
             Workspace *ws = Workspace::self();
             if (!ws) {
                 // it's possible that a Surface gets created before Workspace is created
                 return;
             }
             if (surface->client() != xWaylandConnection()) {
                 // setting surface is only relevat for Xwayland clients
                 return;
             }
             auto check = [surface] (const Toplevel *t) {
                 return t->surfaceId() == surface->id();
             };
             if (Toplevel *t = ws->findToplevel(check)) {
                 t->setSurface(surface);
             }
         }
     );
     m_shell = m_display->createShell(m_display);
     m_shell->create();
     connect(m_shell, &ShellInterface::surfaceCreated, this, &WaylandServer::createSurface<ShellSurfaceInterface>);
     m_xdgShell = m_display->createXdgShell(XdgShellInterfaceVersion::UnstableV5, m_display);
     m_xdgShell->create();
     connect(m_xdgShell, &XdgShellInterface::surfaceCreated, this, &WaylandServer::createSurface<XdgShellSurfaceInterface>);
     // TODO: verify seat and serial
     connect(m_xdgShell, &XdgShellInterface::popupCreated, this, &WaylandServer::createSurface<XdgShellPopupInterface>);
     m_display->createShm();
     m_seat = m_display->createSeat(m_display);
     m_seat->create();
     auto ddm = m_display->createDataDeviceManager(m_display);
     ddm->create();
     connect(ddm, &DataDeviceManagerInterface::dataDeviceCreated, this,
         [this] (DataDeviceInterface *ddi) {
             if (ddi->client() == m_xclipbaordSync.client && m_xclipbaordSync.client != nullptr) {
                 m_xclipbaordSync.ddi = QPointer<DataDeviceInterface>(ddi);
                 connect(m_xclipbaordSync.ddi.data(), &DataDeviceInterface::selectionChanged, this,
                     [this] {
                         // testing whether the active client inherits Client
                         // it would be better to test for the keyboard focus, but we might get a clipboard update
                         // when the Client is already active, but no Surface is created yet.
                         if (workspace()->activeClient() && workspace()->activeClient()->inherits("KWin::Client")) {
                             m_seat->setSelection(m_xclipbaordSync.ddi.data());
                         }
                     }
                 );
             }
         }
     );
     m_display->createIdle(m_display)->create();
     m_plasmaShell = m_display->createPlasmaShell(m_display);
     m_plasmaShell->create();
     connect(m_plasmaShell, &PlasmaShellInterface::surfaceCreated,
         [this] (PlasmaShellSurfaceInterface *surface) {
             if (ShellClient *client = findClient(surface->surface())) {
                 client->installPlasmaShellSurface(surface);
             }
         }
     );
     m_qtExtendedSurface = m_display->createQtSurfaceExtension(m_display);
     m_qtExtendedSurface->create();
     connect(m_qtExtendedSurface, &QtSurfaceExtensionInterface::surfaceCreated,
         [this] (QtExtendedSurfaceInterface *surface) {
             if (ShellClient *client = findClient(surface->surface())) {
                 client->installQtExtendedSurface(surface);
             }
         }
     );
     m_windowManagement = m_display->createPlasmaWindowManagement(m_display);
     m_windowManagement->create();
     m_windowManagement->setShowingDesktopState(PlasmaWindowManagementInterface::ShowingDesktopState::Disabled);
     connect(m_windowManagement, &PlasmaWindowManagementInterface::requestChangeShowingDesktop, this,
         [] (PlasmaWindowManagementInterface::ShowingDesktopState state) {
             if (!workspace()) {
                 return;
             }
             bool set = false;
             switch (state) {
             case PlasmaWindowManagementInterface::ShowingDesktopState::Disabled:
                 set = false;
                 break;
             case PlasmaWindowManagementInterface::ShowingDesktopState::Enabled:
                 set = true;
                 break;
             default:
                 Q_UNREACHABLE();
                 break;
             }
             if (set == workspace()->showingDesktop()) {
                 return;
             }
             workspace()->setShowingDesktop(set);
         }
     );
     auto shadowManager = m_display->createShadowManager(m_display);
     shadowManager->create();
 
     m_display->createDpmsManager(m_display)->create();
 
     m_decorationManager = m_display->createServerSideDecorationManager(m_display);
     connect(m_decorationManager, &ServerSideDecorationManagerInterface::decorationCreated, this,
         [this] (ServerSideDecorationInterface *deco) {
             if (ShellClient *c = findClient(deco->surface())) {
                 c->installServerSideDecoration(deco);
             }
         }
     );
     m_decorationManager->create();
 
     m_outputManagement = m_display->createOutputManagement(m_display);
     connect(m_outputManagement, &OutputManagementInterface::configurationChangeRequested,
             this, [this](KWayland::Server::OutputConfigurationInterface *config) {
                 kwinApp()->platform()->configurationChangeRequested(config);
     });
     m_outputManagement->create();
 
     m_display->createSubCompositor(m_display)->create();
 
     return true;
 }
 
 void WaylandServer::shellClientShown(Toplevel *t)
 {
     ShellClient *c = dynamic_cast<ShellClient*>(t);
     if (!c) {
         qCWarning(KWIN_CORE) << "Failed to cast a Toplevel which is supposed to be a ShellClient to ShellClient";
         return;
     }
     disconnect(c, &ShellClient::windowShown, this, &WaylandServer::shellClientShown);
     emit shellClientAdded(c);
 }
 
 void WaylandServer::initWorkspace()
 {
     if (m_windowManagement) {
         connect(workspace(), &Workspace::showingDesktopChanged, this,
             [this] (bool set) {
                 using namespace KWayland::Server;
                 m_windowManagement->setShowingDesktopState(set ?
                     PlasmaWindowManagementInterface::ShowingDesktopState::Enabled :
                     PlasmaWindowManagementInterface::ShowingDesktopState::Disabled
                 );
             }
         );
     }
 
     if (hasScreenLockerIntegration()) {
         ScreenLocker::KSldApp::self();
         ScreenLocker::KSldApp::self()->setWaylandDisplay(m_display);
         ScreenLocker::KSldApp::self()->setGreeterEnvironment(kwinApp()->processStartupEnvironment());
         ScreenLocker::KSldApp::self()->initialize();
 
         connect(ScreenLocker::KSldApp::self(), &ScreenLocker::KSldApp::greeterClientConnectionChanged, this,
             [this] () {
                 m_screenLockerClientConnection = ScreenLocker::KSldApp::self()->greeterClientConnection();
             }
         );
 
         connect(ScreenLocker::KSldApp::self(), &ScreenLocker::KSldApp::unlocked, this,
             [this] () {
                 m_screenLockerClientConnection = nullptr;
             }
         );
 
         if (m_initFlags.testFlag(InitalizationFlag::LockScreen)) {
             ScreenLocker::KSldApp::self()->lock(ScreenLocker::EstablishLock::Immediate);
         }
     }
     emit initialized();
 }
 
 void WaylandServer::initOutputs()
 {
     if (kwinApp()->platform()->handlesOutputs()) {
         return;
     }
     syncOutputsToWayland();
     connect(screens(), &Screens::changed, this,
         [this] {
             // when screens change we need to sync this to Wayland.
             // Unfortunately we don't have much information and cannot properly match a KWin screen
             // to a Wayland screen.
             // Thus we just recreate all outputs and delete the old ones
             const auto outputs = m_display->outputs();
             syncOutputsToWayland();
             qDeleteAll(outputs);
         }
     );
 }
 
 void WaylandServer::syncOutputsToWayland()
 {
     Screens *s = screens();
     Q_ASSERT(s);
     for (int i = 0; i < s->count(); ++i) {
         OutputInterface *output = m_display->createOutput(m_display);
         const QRect &geo = s->geometry(i);
         output->setGlobalPosition(geo.topLeft());
         output->setPhysicalSize(geo.size() / 3.8);
         output->addMode(geo.size());
         output->create();
     }
 }
 
 int WaylandServer::createXWaylandConnection()
 {
     int sx[2];
     if (socketpair(AF_UNIX, SOCK_STREAM | SOCK_CLOEXEC, 0, sx) < 0) {
         qCWarning(KWIN_CORE) << "Could not create socket";
         return -1;
     }
     m_xwayland.client = m_display->createClient(sx[0]);
     m_xwayland.destroyConnection = connect(m_xwayland.client, &KWayland::Server::ClientConnection::disconnected, this,
         [] {
             qFatal("Xwayland Connection died");
         }
     );
     return sx[1];
 }
 
 void WaylandServer::destroyXWaylandConnection()
 {
     if (!m_xwayland.client) {
         return;
     }
     // first terminate the clipboard sync
     if (m_xclipbaordSync.process) {
         m_xclipbaordSync.process->terminate();
     }
     disconnect(m_xwayland.destroyConnection);
     m_xwayland.client->destroy();
     m_xwayland.client = nullptr;
 }
 
 int WaylandServer::createInputMethodConnection()
 {
     int sx[2];
     if (socketpair(AF_UNIX, SOCK_STREAM | SOCK_CLOEXEC, 0, sx) < 0) {
         qCWarning(KWIN_CORE) << "Could not create socket";
         return -1;
     }
     m_inputMethodServerConnection = m_display->createClient(sx[0]);
     return sx[1];
 }
 
 void WaylandServer::destroyInputMethodConnection()
 {
     if (!m_inputMethodServerConnection) {
         return;
     }
     m_inputMethodServerConnection->destroy();
     m_inputMethodServerConnection = nullptr;
 }
 
 int WaylandServer::createXclipboardSyncConnection()
 {
     int sx[2];
     if (socketpair(AF_UNIX, SOCK_STREAM | SOCK_CLOEXEC, 0, sx) < 0) {
         qCWarning(KWIN_CORE) << "Could not create socket";
         return -1;
     }
     m_xclipbaordSync.client = m_display->createClient(sx[0]);
     return sx[1];
 }
 
 void WaylandServer::setupX11ClipboardSync()
 {
     if (m_xclipbaordSync.process) {
         return;
     }
 
     int socket = dup(createXclipboardSyncConnection());
     if (socket == -1) {
         delete m_xclipbaordSync.client;
         m_xclipbaordSync.client = nullptr;
         return;
     }
     if (socket >= 0) {
         QProcessEnvironment environment = kwinApp()->processStartupEnvironment();
         environment.insert(QStringLiteral("WAYLAND_SOCKET"), QByteArray::number(socket));
         environment.insert(QStringLiteral("DISPLAY"), QString::fromUtf8(qgetenv("DISPLAY")));
         environment.remove("WAYLAND_DISPLAY");
         m_xclipbaordSync.process = new Process(this);
         m_xclipbaordSync.process->setProcessChannelMode(QProcess::ForwardedErrorChannel);
         auto finishedSignal = static_cast<void (QProcess::*)(int, QProcess::ExitStatus)>(&QProcess::finished);
         connect(m_xclipbaordSync.process, finishedSignal, this,
             [this] {
                 m_xclipbaordSync.process->deleteLater();
                 m_xclipbaordSync.process = nullptr;
                 m_xclipbaordSync.ddi.clear();
                 m_xclipbaordSync.client->destroy();
                 m_xclipbaordSync.client = nullptr;
                 // TODO: restart
             }
         );
         m_xclipbaordSync.process->setProcessEnvironment(environment);
         m_xclipbaordSync.process->start(QStringLiteral(KWIN_XCLIPBOARD_SYNC_BIN));
     }
 }
 
 void WaylandServer::createInternalConnection()
 {
     int sx[2];
     if (socketpair(AF_UNIX, SOCK_STREAM | SOCK_CLOEXEC, 0, sx) < 0) {
         qCWarning(KWIN_CORE) << "Could not create socket";
         return;
     }
     m_internalConnection.server = m_display->createClient(sx[0]);
     using namespace KWayland::Client;
     m_internalConnection.client = new ConnectionThread();
     m_internalConnection.client->setSocketFd(sx[1]);
     m_internalConnection.clientThread = new QThread;
     m_internalConnection.client->moveToThread(m_internalConnection.clientThread);
     m_internalConnection.clientThread->start();
 
     connect(m_internalConnection.client, &ConnectionThread::connected, this,
         [this] {
             Registry *registry = new Registry(this);
             EventQueue *eventQueue = new EventQueue(this);
             eventQueue->setup(m_internalConnection.client);
             registry->setEventQueue(eventQueue);
             registry->create(m_internalConnection.client);
             m_internalConnection.registry = registry;
             connect(registry, &Registry::shmAnnounced, this,
                 [this] (quint32 name, quint32 version) {
                     m_internalConnection.shm = m_internalConnection.registry->createShmPool(name, version, this);
                 }
             );
             registry->setup();
         }
     );
     m_internalConnection.client->initConnection();
 }
 
 void WaylandServer::removeClient(ShellClient *c)
 {
     m_clients.removeAll(c);
     m_internalClients.removeAll(c);
     emit shellClientRemoved(c);
 }
 
 void WaylandServer::dispatch()
 {
     if (!m_display) {
         return;
     }
     if (m_internalConnection.server) {
         m_internalConnection.server->flush();
     }
     m_display->dispatchEvents(0);
 }
 
 static ShellClient *findClientInList(const QList<ShellClient*> &clients, quint32 id)
 {
     auto it = std::find_if(clients.begin(), clients.end(),
         [id] (ShellClient *c) {
             return c->windowId() == id;
         }
     );
     if (it == clients.end()) {
         return nullptr;
     }
     return *it;
 }
 
 static ShellClient *findClientInList(const QList<ShellClient*> &clients, KWayland::Server::SurfaceInterface *surface)
 {
     auto it = std::find_if(clients.begin(), clients.end(),
         [surface] (ShellClient *c) {
             return c->surface() == surface;
         }
     );
     if (it == clients.end()) {
         return nullptr;
     }
     return *it;
 }
 
 ShellClient *WaylandServer::findClient(quint32 id) const
 {
     if (id == 0) {
         return nullptr;
     }
     if (ShellClient *c = findClientInList(m_clients, id)) {
         return c;
     }
     if (ShellClient *c = findClientInList(m_internalClients, id)) {
         return c;
     }
     return nullptr;
 }
 
 ShellClient *WaylandServer::findClient(SurfaceInterface *surface) const
 {
     if (!surface) {
         return nullptr;
     }
     if (ShellClient *c = findClientInList(m_clients, surface)) {
         return c;
     }
     if (ShellClient *c = findClientInList(m_internalClients, surface)) {
         return c;
     }
     return nullptr;
 }
 
+AbstractClient *WaylandServer::findAbstractClient(SurfaceInterface *surface) const
+{
+    return findClient(surface);
+}
+
 ShellClient *WaylandServer::findClient(QWindow *w) const
 {
     if (!w) {
         return nullptr;
     }
     auto it = std::find_if(m_internalClients.constBegin(), m_internalClients.constEnd(),
         [w] (const ShellClient *c) {
             return c->internalWindow() == w;
         }
     );
     if (it != m_internalClients.constEnd()) {
         return *it;
     }
     return nullptr;
 }
 
 quint32 WaylandServer::createWindowId(SurfaceInterface *surface)
 {
     auto it = m_clientIds.constFind(surface->client());
     quint16 clientId = 0;
     if (it != m_clientIds.constEnd()) {
         clientId = it.value();
     } else {
         clientId = createClientId(surface->client());
     }
     Q_ASSERT(clientId != 0);
     quint32 id = clientId;
     // TODO: this does not prevent that two surfaces of same client get same id
     id = (id << 16) | (surface->id() & 0xFFFF);
     if (findClient(id)) {
         qCWarning(KWIN_CORE) << "Invalid client windowId generated:" << id;
         return 0;
     }
     return id;
 }
 
 quint16 WaylandServer::createClientId(ClientConnection *c)
 {
     auto ids = m_clientIds.values().toSet();
     quint16 id = 1;
     if (!ids.isEmpty()) {
         for (quint16 i = ids.count() + 1; i >= 1 ; i--) {
             if (!ids.contains(i)) {
                 id = i;
                 break;
             }
         }
     }
     Q_ASSERT(!ids.contains(id));
     m_clientIds.insert(c, id);
     connect(c, &ClientConnection::disconnected, this,
         [this] (ClientConnection *c) {
             m_clientIds.remove(c);
         }
     );
     return id;
 }
 
 bool WaylandServer::isScreenLocked() const
 {
     if (!hasScreenLockerIntegration()) {
         return false;
     }
     return ScreenLocker::KSldApp::self()->lockState() == ScreenLocker::KSldApp::Locked ||
            ScreenLocker::KSldApp::self()->lockState() == ScreenLocker::KSldApp::AcquiringLock;
 }
 
 bool WaylandServer::hasScreenLockerIntegration() const
 {
     return !m_initFlags.testFlag(InitalizationFlag::NoLockScreenIntegration);
 }
 
 }
diff --git a/wayland_server.h b/wayland_server.h
index f2d13ac7e..eabfa394c 100644
--- a/wayland_server.h
+++ b/wayland_server.h
@@ -1,226 +1,227 @@
 /********************************************************************
  KWin - the KDE window manager
  This file is part of the KDE project.
 
 Copyright (C) 2015 Martin Gräßlin <mgraesslin@kde.org>
 
 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/>.
 *********************************************************************/
 #ifndef KWIN_WAYLAND_SERVER_H
 #define KWIN_WAYLAND_SERVER_H
 
 #include <kwinglobals.h>
 
 #include <QObject>
 #include <QPointer>
 
 class QThread;
 class QProcess;
 class QWindow;
 
 namespace KWayland
 {
 namespace Client
 {
 class ConnectionThread;
 class Registry;
 class ShmPool;
 class Surface;
 }
 namespace Server
 {
 class ClientConnection;
 class CompositorInterface;
 class Display;
 class DataDeviceInterface;
 class ShellInterface;
 class SeatInterface;
 class ServerSideDecorationManagerInterface;
 class SurfaceInterface;
 class OutputInterface;
 class PlasmaShellInterface;
 class PlasmaWindowManagementInterface;
 class QtSurfaceExtensionInterface;
 class OutputManagementInterface;
 class OutputConfigurationInterface;
 class XdgShellInterface;
 }
 }
 
 namespace KWin
 {
 class ShellClient;
 
 class AbstractClient;
 class Toplevel;
 
 class KWIN_EXPORT WaylandServer : public QObject
 {
     Q_OBJECT
 public:
     enum class InitalizationFlag {
         NoOptions = 0x0,
         LockScreen = 0x1,
         NoLockScreenIntegration = 0x2
     };
 
     Q_DECLARE_FLAGS(InitalizationFlags, InitalizationFlag)
 
     virtual ~WaylandServer();
     bool init(const QByteArray &socketName = QByteArray(), InitalizationFlags flags = InitalizationFlag::NoOptions);
     void terminateClientConnections();
 
     KWayland::Server::Display *display() {
         return m_display;
     }
     KWayland::Server::CompositorInterface *compositor() {
         return m_compositor;
     }
     KWayland::Server::SeatInterface *seat() {
         return m_seat;
     }
     KWayland::Server::ShellInterface *shell() {
         return m_shell;
     }
     KWayland::Server::PlasmaWindowManagementInterface *windowManagement() {
         return m_windowManagement;
     }
     KWayland::Server::ServerSideDecorationManagerInterface *decorationManager() const {
         return m_decorationManager;
     }
     QList<ShellClient*> clients() const {
         return m_clients;
     }
     QList<ShellClient*> internalClients() const {
         return m_internalClients;
     }
     void removeClient(ShellClient *c);
     ShellClient *findClient(quint32 id) const;
     ShellClient *findClient(KWayland::Server::SurfaceInterface *surface) const;
+    AbstractClient *findAbstractClient(KWayland::Server::SurfaceInterface *surface) const;
     ShellClient *findClient(QWindow *w) const;
 
     /**
      * @returns file descriptor for Xwayland to connect to.
      **/
     int createXWaylandConnection();
     void destroyXWaylandConnection();
 
     /**
      * @returns file descriptor to the input method server's socket.
      **/
     int createInputMethodConnection();
     void destroyInputMethodConnection();
 
     int createXclipboardSyncConnection();
 
     /**
      * @returns true if screen is locked.
      **/
     bool isScreenLocked() const;
     /**
      * @returns whether integration with KScreenLocker is available.
      **/
     bool hasScreenLockerIntegration() const;
 
     void createInternalConnection();
     void initWorkspace();
 
     KWayland::Server::ClientConnection *xWaylandConnection() const {
         return m_xwayland.client;
     }
     KWayland::Server::ClientConnection *inputMethodConnection() const {
         return m_inputMethodServerConnection;
     }
     KWayland::Server::ClientConnection *internalConnection() const {
         return m_internalConnection.server;
     }
     KWayland::Server::ClientConnection *screenLockerClientConnection() const {
         return m_screenLockerClientConnection;
     }
     QPointer<KWayland::Server::DataDeviceInterface> xclipboardSyncDataDevice() const {
         return m_xclipbaordSync.ddi;
     }
     KWayland::Client::ShmPool *internalShmPool() {
         return m_internalConnection.shm;
     }
     KWayland::Client::ConnectionThread *internalClientConection() {
         return m_internalConnection.client;
     }
     KWayland::Client::Registry *internalClientRegistry() {
         return m_internalConnection.registry;
     }
     void dispatch();
     quint32 createWindowId(KWayland::Server::SurfaceInterface *surface);
 
 Q_SIGNALS:
     void shellClientAdded(KWin::ShellClient*);
     void shellClientRemoved(KWin::ShellClient*);
     void terminatingInternalClientConnection();
     void initialized();
 
 private:
     void setupX11ClipboardSync();
     void shellClientShown(Toplevel *t);
     void initOutputs();
     void syncOutputsToWayland();
     quint16 createClientId(KWayland::Server::ClientConnection *c);
     void destroyInternalConnection();
     void configurationChangeRequested(KWayland::Server::OutputConfigurationInterface *config);
     template <class T>
     void createSurface(T *surface);
     KWayland::Server::Display *m_display = nullptr;
     KWayland::Server::CompositorInterface *m_compositor = nullptr;
     KWayland::Server::SeatInterface *m_seat = nullptr;
     KWayland::Server::ShellInterface *m_shell = nullptr;
     KWayland::Server::XdgShellInterface *m_xdgShell = nullptr;
     KWayland::Server::PlasmaShellInterface *m_plasmaShell = nullptr;
     KWayland::Server::PlasmaWindowManagementInterface *m_windowManagement = nullptr;
     KWayland::Server::QtSurfaceExtensionInterface *m_qtExtendedSurface = nullptr;
     KWayland::Server::ServerSideDecorationManagerInterface *m_decorationManager = nullptr;
     KWayland::Server::OutputManagementInterface *m_outputManagement = nullptr;
     struct {
         KWayland::Server::ClientConnection *client = nullptr;
         QMetaObject::Connection destroyConnection;
     } m_xwayland;
     KWayland::Server::ClientConnection *m_inputMethodServerConnection = nullptr;
     KWayland::Server::ClientConnection *m_screenLockerClientConnection = nullptr;
     struct {
         KWayland::Server::ClientConnection *server = nullptr;
         KWayland::Client::ConnectionThread *client = nullptr;
         QThread *clientThread = nullptr;
         KWayland::Client::Registry *registry = nullptr;
         KWayland::Client::ShmPool *shm = nullptr;
 
     } m_internalConnection;
     struct {
         QProcess *process = nullptr;
         KWayland::Server::ClientConnection *client = nullptr;
         QPointer<KWayland::Server::DataDeviceInterface> ddi;
     } m_xclipbaordSync;
     QList<ShellClient*> m_clients;
     QList<ShellClient*> m_internalClients;
     QHash<KWayland::Server::ClientConnection*, quint16> m_clientIds;
     InitalizationFlags m_initFlags;
     KWIN_SINGLETON(WaylandServer)
 };
 
 inline
 WaylandServer *waylandServer() {
     return WaylandServer::self();
 }
 
 } // namespace KWin
 
 #endif