File indexing completed on 2024-04-28 16:49:09

 /*
     KWin - the KDE window manager
     This file is part of the KDE project.
 
     SPDX-FileCopyrightText: 2015 Martin Gräßlin <mgraesslin@kde.org>
     SPDX-FileCopyrightText: 2019 Vlad Zahorodnii <vlad.zahorodnii@kde.org>
 
     SPDX-License-Identifier: GPL-2.0-or-later
 */
 #pragma once
 
 #include "cursor.h"
 #include "options.h"
 #include "rules.h"
 #include "utils/common.h"
 #include "utils/xcbutils.h"
 
 #include <functional>
 #include <memory>
 
 #include <NETWM>
 
 #include <QElapsedTimer>
 #include <QIcon>
 #include <QKeySequence>
 #include <QMatrix4x4>
 #include <QObject>
 #include <QPointer>
 #include <QRectF>
 #include <QTimer>
 #include <QUuid>
 
 class QMouseEvent;
 class QOpenGLFramebufferObject;
 
 namespace KWaylandServer
 {
 class PlasmaWindowInterface;
 class SurfaceInterface;
 }
 
 namespace KDecoration2
 {
 class Decoration;
 }
 
 namespace KWin
 {
 class Group;
 class Output;
 class ClientMachine;
 class Deleted;
 class EffectWindowImpl;
 class Tile;
 class Scene;
 class Shadow;
 class SurfaceItem;
 class VirtualDesktop;
 class WindowItem;
 
 /**
  * Enum to describe the reason why a Window has to be released.
  */
 enum class ReleaseReason {
     Release, ///< Normal Release after e.g. an Unmap notify event (window still valid)
     Destroyed, ///< Release after an Destroy notify event (window no longer valid)
     KWinShutsDown ///< Release on KWin Shutdown (window still valid)
 };
 
 namespace TabBox
 {
 class TabBoxClientImpl;
 }
 
 namespace Decoration
 {
 class DecoratedClientImpl;
 class DecorationPalette;
 }
 
 class KWIN_EXPORT Window : public QObject
 {
     Q_OBJECT
 
     /**
      * This property holds rectangle that the pixmap or buffer of this Window
      * occupies on the screen. This rectangle includes invisible portions of the
      * window, e.g. client-side drop shadows, etc.
      */
     Q_PROPERTY(QRectF bufferGeometry READ bufferGeometry)
 
     /**
      * This property holds the position of the Window's frame geometry.
      */
     Q_PROPERTY(QPointF pos READ pos)
 
     /**
      * This property holds the size of the Window's frame geometry.
      */
     Q_PROPERTY(QSizeF size READ size)
 
     /**
      * This property holds the x position of the Window's frame geometry.
      */
     Q_PROPERTY(qreal x READ x NOTIFY frameGeometryChanged)
 
     /**
      * This property holds the y position of the Window's frame geometry.
      */
     Q_PROPERTY(qreal y READ y NOTIFY frameGeometryChanged)
 
     /**
      * This property holds the width of the Window's frame geometry.
      */
     Q_PROPERTY(qreal width READ width NOTIFY frameGeometryChanged)
 
     /**
      * This property holds the height of the Window's frame geometry.
      */
     Q_PROPERTY(qreal height READ height NOTIFY frameGeometryChanged)
 
     Q_PROPERTY(qreal opacity READ opacity WRITE setOpacity NOTIFY opacityChanged)
 
     /**
      * The screen where the window center is on
      */
     Q_PROPERTY(int screen READ screen NOTIFY screenChanged)
 
     /**
      * The output (screen) where the window center is on
      */
     Q_PROPERTY(KWin::Output *output READ output NOTIFY screenChanged)
 
     Q_PROPERTY(QRectF rect READ rect)
     Q_PROPERTY(QString resourceName READ resourceName NOTIFY windowClassChanged)
     Q_PROPERTY(QString resourceClass READ resourceClass NOTIFY windowClassChanged)
     Q_PROPERTY(QString windowRole READ windowRole NOTIFY windowRoleChanged)
 
     /**
      * Returns whether the window is a desktop background window (the one with wallpaper).
      * See _NET_WM_WINDOW_TYPE_DESKTOP at https://standards.freedesktop.org/wm-spec/wm-spec-latest.html .
      */
     Q_PROPERTY(bool desktopWindow READ isDesktop CONSTANT)
 
     /**
      * Returns whether the window is a dock (i.e. a panel).
      * See _NET_WM_WINDOW_TYPE_DOCK at https://standards.freedesktop.org/wm-spec/wm-spec-latest.html .
      */
     Q_PROPERTY(bool dock READ isDock CONSTANT)
 
     /**
      * Returns whether the window is a standalone (detached) toolbar window.
      * See _NET_WM_WINDOW_TYPE_TOOLBAR at https://standards.freedesktop.org/wm-spec/wm-spec-latest.html .
      */
     Q_PROPERTY(bool toolbar READ isToolbar CONSTANT)
 
     /**
      * Returns whether the window is a torn-off menu.
      * See _NET_WM_WINDOW_TYPE_MENU at https://standards.freedesktop.org/wm-spec/wm-spec-latest.html .
      */
     Q_PROPERTY(bool menu READ isMenu CONSTANT)
 
     /**
      * Returns whether the window is a "normal" window, i.e. an application or any other window
      * for which none of the specialized window types fit.
      * See _NET_WM_WINDOW_TYPE_NORMAL at https://standards.freedesktop.org/wm-spec/wm-spec-latest.html .
      */
     Q_PROPERTY(bool normalWindow READ isNormalWindow CONSTANT)
 
     /**
      * Returns whether the window is a dialog window.
      * See _NET_WM_WINDOW_TYPE_DIALOG at https://standards.freedesktop.org/wm-spec/wm-spec-latest.html .
      */
     Q_PROPERTY(bool dialog READ isDialog CONSTANT)
 
     /**
      * Returns whether the window is a splashscreen. Note that many (especially older) applications
      * do not support marking their splash windows with this type.
      * See _NET_WM_WINDOW_TYPE_SPLASH at https://standards.freedesktop.org/wm-spec/wm-spec-latest.html .
      */
     Q_PROPERTY(bool splash READ isSplash CONSTANT)
 
     /**
      * Returns whether the window is a utility window, such as a tool window.
      * See _NET_WM_WINDOW_TYPE_UTILITY at https://standards.freedesktop.org/wm-spec/wm-spec-latest.html .
      */
     Q_PROPERTY(bool utility READ isUtility CONSTANT)
 
     /**
      * Returns whether the window is a dropdown menu (i.e. a popup directly or indirectly open
      * from the applications menubar).
      * See _NET_WM_WINDOW_TYPE_DROPDOWN_MENU at https://standards.freedesktop.org/wm-spec/wm-spec-latest.html .
      */
     Q_PROPERTY(bool dropdownMenu READ isDropdownMenu CONSTANT)
 
     /**
      * Returns whether the window is a popup menu (that is not a torn-off or dropdown menu).
      * See _NET_WM_WINDOW_TYPE_POPUP_MENU at https://standards.freedesktop.org/wm-spec/wm-spec-latest.html .
      */
     Q_PROPERTY(bool popupMenu READ isPopupMenu CONSTANT)
 
     /**
      * Returns whether the window is a tooltip.
      * See _NET_WM_WINDOW_TYPE_TOOLTIP at https://standards.freedesktop.org/wm-spec/wm-spec-latest.html .
      */
     Q_PROPERTY(bool tooltip READ isTooltip CONSTANT)
 
     /**
      * Returns whether the window is a window with a notification.
      * See _NET_WM_WINDOW_TYPE_NOTIFICATION at https://standards.freedesktop.org/wm-spec/wm-spec-latest.html .
      */
     Q_PROPERTY(bool notification READ isNotification CONSTANT)
 
     /**
      * Returns whether the window is a window with a critical notification.
      */
     Q_PROPERTY(bool criticalNotification READ isCriticalNotification CONSTANT)
 
     /**
      * Returns whether the window is an applet popup.
      */
     Q_PROPERTY(bool appletPopup READ isAppletPopup CONSTANT)
 
     /**
      * Returns whether the window is an On Screen Display.
      */
     Q_PROPERTY(bool onScreenDisplay READ isOnScreenDisplay CONSTANT)
 
     /**
      * Returns whether the window is a combobox popup.
      * See _NET_WM_WINDOW_TYPE_COMBO at https://standards.freedesktop.org/wm-spec/wm-spec-latest.html .
      */
     Q_PROPERTY(bool comboBox READ isComboBox CONSTANT)
 
     /**
      * Returns whether the window is a Drag&Drop icon.
      * See _NET_WM_WINDOW_TYPE_DND at https://standards.freedesktop.org/wm-spec/wm-spec-latest.html .
      */
     Q_PROPERTY(bool dndIcon READ isDNDIcon CONSTANT)
 
     /**
      * Returns the NETWM window type
      * See https://standards.freedesktop.org/wm-spec/wm-spec-latest.html .
      */
     Q_PROPERTY(int windowType READ windowType CONSTANT)
 
     /**
      * Whether this Window is managed by KWin (it has control over its placement and other
      * aspects, as opposed to override-redirect windows that are entirely handled by the application).
      */
     Q_PROPERTY(bool managed READ isClient CONSTANT)
 
     /**
      * Whether this Window represents an already deleted window and only kept for the compositor for animations.
      */
     Q_PROPERTY(bool deleted READ isDeleted CONSTANT)
 
     /**
      * Whether the window has an own shape
      */
     Q_PROPERTY(bool shaped READ shape NOTIFY shapedChanged)
 
     /**
      * Whether the window does not want to be animated on window close.
      * There are legit reasons for this like a screenshot application which does not want it's
      * window being captured.
      */
     Q_PROPERTY(bool skipsCloseAnimation READ skipsCloseAnimation WRITE setSkipCloseAnimation NOTIFY skipCloseAnimationChanged)
 
     /**
      * Whether the window is a popup.
      */
     Q_PROPERTY(bool popupWindow READ isPopupWindow)
 
     /**
      * Whether this Window represents the outline.
      *
      * @note It's always @c false if compositing is turned off.
      */
     Q_PROPERTY(bool outline READ isOutline)
 
     /**
      * This property holds a UUID to uniquely identify this Window.
      */
     Q_PROPERTY(QUuid internalId READ internalId CONSTANT)
 
     /**
      * The pid of the process owning this window.
      *
      * @since 5.20
      */
     Q_PROPERTY(int pid READ pid CONSTANT)
 
     /**
      * The position of this window within Workspace's window stack.
      */
     Q_PROPERTY(int stackingOrder READ stackingOrder NOTIFY stackingOrderChanged)
 
     /**
      * Whether this Window is fullScreen. A Window 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 Window 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 Window 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 Window is active or not. Use Workspace::activateWindow() to activate a Window.
      * @see Workspace::activateWindow
      */
     Q_PROPERTY(bool active READ isActive NOTIFY activeChanged)
 
     /**
      * The desktop this Window is on. If the Window is on all desktops the property has value -1.
      * This is a legacy property, use x11DesktopIds instead
      *
      * @deprecated Use the desktops property instead.
      */
     Q_PROPERTY(int desktop READ desktop WRITE setDesktop NOTIFY desktopChanged)
 
     /**
      * The virtual desktops this client is on. If it's on all desktops, the list is empty.
      */
     Q_PROPERTY(QVector<KWin::VirtualDesktop *> desktops READ desktops WRITE setDesktops NOTIFY desktopChanged)
 
     /**
      * Whether the Window is on all desktops. That is desktop is -1.
      */
     Q_PROPERTY(bool onAllDesktops READ isOnAllDesktops WRITE setOnAllDesktops NOTIFY desktopChanged)
 
     /**
      * The activities this client is on. If it's on all activities the property is empty.
      */
     Q_PROPERTY(QStringList activities READ activities WRITE setOnActivities NOTIFY activitiesChanged)
 
     /**
      * The x11 ids for all desktops this client is in. On X11 this list will always have a length of 1
      *
      * @deprecated prefer using apis that use VirtualDesktop objects
      */
     Q_PROPERTY(QVector<uint> x11DesktopIds READ x11DesktopIds NOTIFY x11DesktopIdsChanged)
 
     /**
      * 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 Window 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.
      */
     Q_PROPERTY(bool closeable READ isCloseable NOTIFY closeableChanged)
 
     Q_PROPERTY(QIcon icon READ icon NOTIFY iconChanged)
 
     /**
      * Whether the Window is set to be kept above other windows.
      */
     Q_PROPERTY(bool keepAbove READ keepAbove WRITE setKeepAbove NOTIFY keepAboveChanged)
 
     /**
      * Whether the Window is set to be kept below other windows.
      */
     Q_PROPERTY(bool keepBelow READ keepBelow WRITE setKeepBelow NOTIFY keepBelowChanged)
 
     /**
      * Whether the Window 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 NOTIFY shadeableChanged)
 
     /**
      * Whether the Window is shaded.
      */
     Q_PROPERTY(bool shade READ isShade WRITE setShade NOTIFY shadeChanged)
 
     /**
      * Whether the Window 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 Window is minimized.
      */
     Q_PROPERTY(bool minimized READ isMinimized WRITE setMinimized NOTIFY minimizedChanged)
 
     /**
      * The optional geometry representing the minimized Window in e.g a taskbar.
      * See _NET_WM_ICON_GEOMETRY at https://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(QRectF 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 Window 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 Window. 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(QSizeF minSize READ minSize)
 
     /**
      * Maximum size as specified in WM_NORMAL_HINTS
      */
     Q_PROPERTY(QSizeF maxSize READ maxSize)
 
     /**
      * Whether the Window 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 Window is a transient Window to another Window.
      * @see transientFor
      */
     Q_PROPERTY(bool transient READ isTransient NOTIFY transientChanged)
 
     /**
      * The Window to which this Window is a transient if any.
      */
     Q_PROPERTY(KWin::Window *transientFor READ transientFor NOTIFY transientChanged)
 
     /**
      * Whether the Window represents a modal window.
      */
     Q_PROPERTY(bool modal READ isModal NOTIFY modalChanged)
 
     /**
      * The geometry of this Window. Be aware that depending on resize mode the frameGeometryChanged
      * signal might be emitted at each resize step or only at the end of the resize operation.
      *
      * @deprecated Use frameGeometry
      */
     Q_PROPERTY(QRectF geometry READ frameGeometry WRITE moveResize NOTIFY frameGeometryChanged)
 
     /**
      * The geometry of this Window. Be aware that depending on resize mode the frameGeometryChanged
      * signal might be emitted at each resize step or only at the end of the resize operation.
      */
     Q_PROPERTY(QRectF frameGeometry READ frameGeometry WRITE moveResize NOTIFY frameGeometryChanged)
 
     /**
      * Whether the Window is currently being moved by the user.
      * Notify signal is emitted when the Window starts or ends move/resize mode.
      */
     Q_PROPERTY(bool move READ isInteractiveMove NOTIFY moveResizedChanged)
 
     /**
      * Whether the Window is currently being resized by the user.
      * Notify signal is emitted when the Window starts or ends move/resize mode.
      */
     Q_PROPERTY(bool resize READ isInteractiveResize 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 Window provides context help. Mostly needed by decorations to decide whether to
      * show the help button or not.
      */
     Q_PROPERTY(bool providesContextHelp READ providesContextHelp CONSTANT)
 
     /**
      * Whether the Window can be maximized both horizontally and vertically.
      * The property is evaluated each time it is invoked.
      * Because of that there is no notify signal.
      */
     Q_PROPERTY(bool maximizable READ isMaximizable)
 
     /**
      * Whether the Window is moveable. Even if it is not moveable, it might be possible to move
      * it to another screen. The property is evaluated each time it is invoked.
      * Because of that there is no notify signal.
      * @see moveableAcrossScreens
      */
     Q_PROPERTY(bool moveable READ isMovable)
 
     /**
      * Whether the Window can be moved to another screen. The property is evaluated each time it is invoked.
      * Because of that there is no notify signal.
      * @see moveable
      */
     Q_PROPERTY(bool moveableAcrossScreens READ isMovableAcrossScreens)
 
     /**
      * Whether the Window can be resized. The property is evaluated each time it is invoked.
      * Because of that there is no notify signal.
      */
     Q_PROPERTY(bool resizeable READ isResizable)
 
     /**
      * The desktop file name of the application this Window belongs to.
      *
      * This is either the base name without full path and without file extension of the
      * desktop file for the window's application (e.g. "org.kde.foo").
      *
      * The application's desktop file name can also be the full path to the desktop file
      * (e.g. "/opt/kde/share/org.kde.foo.desktop") in case it's not in a standard location.
      */
     Q_PROPERTY(QString desktopFileName READ desktopFileName NOTIFY desktopFileNameChanged)
 
     /**
      * Whether an application menu is available for this Window
      */
     Q_PROPERTY(bool hasApplicationMenu READ hasApplicationMenu NOTIFY hasApplicationMenuChanged)
 
     /**
      * Whether the application menu for this Window is currently opened
      */
     Q_PROPERTY(bool applicationMenuActive READ applicationMenuActive NOTIFY applicationMenuActiveChanged)
 
     /**
      * Whether this window is unresponsive.
      *
      * When an application failed to react on a ping request in time, it is
      * considered unresponsive. This usually indicates that the application froze or crashed.
      */
     Q_PROPERTY(bool unresponsive READ unresponsive NOTIFY unresponsiveChanged)
 
     /**
      * The color scheme set on this window
      * Absolute file path, or name of palette in the user's config directory following KColorSchemes format.
      * An empty string indicates the default palette from kdeglobals is used.
      * @note this indicates the colour scheme requested, which might differ from the theme applied if the colorScheme cannot be found
      */
     Q_PROPERTY(QString colorScheme READ colorScheme NOTIFY colorSchemeChanged)
 
     Q_PROPERTY(KWin::Layer layer READ layer)
 
     /**
      * Whether this window is hidden. It's usually the case with auto-hide panels.
      */
     Q_PROPERTY(bool hidden READ isHiddenInternal NOTIFY hiddenChanged)
 
     /**
      * The Tile this window is associated to, if any
      */
     Q_PROPERTY(KWin::Tile *tile READ tile WRITE setTile NOTIFY tileChanged)
 
 public:
     ~Window() override;
 
     virtual xcb_window_t frameId() const;
     xcb_window_t window() const;
     /**
      * Returns the geometry of the pixmap or buffer attached to this Window.
      *
      * For X11 windows, this method returns server-side geometry of the Window.
      *
      * For Wayland windows, this method returns rectangle that the main surface
      * occupies on the screen, in global screen coordinates.
      */
     QRectF bufferGeometry() const;
     /**
      * Returns the geometry of the Window, excluding invisible portions, e.g.
      * server-side and client-side drop shadows, etc.
      */
     QRectF frameGeometry() const;
     /**
      * Returns the geometry of the client window, in global screen coordinates.
      */
     QRectF clientGeometry() const;
     /**
      * Returns the extents of the server-side decoration.
      *
      * Note that the returned margins object will have all margins set to 0 if
      * the window doesn't have a server-side decoration.
      *
      * Default implementation returns a margins object with all margins set to 0.
      */
     virtual QMargins frameMargins() const;
     /**
      * The geometry of the Window which accepts input events. This might be larger
      * than the actual geometry, e.g. to support resizing outside the window.
      *
      * Default implementation returns same as geometry.
      */
     virtual QRectF inputGeometry() const;
     QSizeF size() const;
     QPointF pos() const;
     QRectF rect() const;
     qreal x() const;
     qreal y() const;
     qreal width() const;
     qreal height() const;
     bool isOnOutput(Output *output) const;
     bool isOnActiveOutput() const;
     int screen() const;
     Output *output() const;
     void setOutput(Output *output);
     virtual QPointF clientPos() const
     {
         return QPointF(borderLeft(), borderTop());
     }; // inside of geometry()
     QSizeF clientSize() const;
     /**
      * Returns a rectangle that the window occupies on the screen, including drop-shadows.
      */
     QRectF visibleGeometry() const;
     virtual bool isClient() const;
     virtual bool isDeleted() const;
     virtual bool isUnmanaged() const;
 
     /**
      * Maps the specified @a point from the global screen coordinates to the frame coordinates.
      */
     QPointF mapToFrame(const QPointF &point) const;
     /**
      * Maps the specified @a point from the global screen coordinates to the surface-local
      * coordinates of the main surface. For X11 windows, this function maps the specified point
      * from the global screen coordinates to the buffer-local coordinates.
      */
     QPointF mapToLocal(const QPointF &point) const;
     QPointF mapFromLocal(const QPointF &point) const;
 
     // prefer isXXX() instead
     // 0 for supported types means default for managed/unmanaged types
     virtual NET::WindowType windowType(bool direct = false, int supported_types = 0) const = 0;
     bool hasNETSupport() const;
     bool isDesktop() const;
     bool isDock() const;
     bool isToolbar() const;
     bool isMenu() const;
     bool isNormalWindow() const; // normal as in 'NET::Normal or NET::Unknown non-transient'
     bool isDialog() const;
     bool isSplash() const;
     bool isUtility() const;
     bool isDropdownMenu() const;
     bool isPopupMenu() const; // a context popup, not dropdown, not torn-off
     bool isTooltip() const;
     bool isNotification() const;
     bool isCriticalNotification() const;
     bool isAppletPopup() const;
     bool isOnScreenDisplay() const;
     bool isComboBox() const;
     bool isDNDIcon() const;
 
     virtual bool isLockScreen() const;
     virtual bool isInputMethod() const;
     virtual bool isOutline() const;
     virtual bool isInternal() const;
 
     /**
      * 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.
      */
     virtual int desktop() const;
     virtual QVector<VirtualDesktop *> desktops() const;
     virtual QStringList activities() const;
     bool isOnDesktop(VirtualDesktop *desktop) const;
     bool isOnDesktop(int d) const;
     bool isOnActivity(const QString &activity) const;
     bool isOnCurrentDesktop() const;
     bool isOnCurrentActivity() const;
     bool isOnAllDesktops() const;
     bool isOnAllActivities() const;
     bool isLockScreenOverlay() const;
 
     void setLockScreenOverlay(bool allowed);
 
     virtual QString windowRole() const;
     QByteArray sessionId() const;
     QString resourceName() const;
     QString resourceClass() const;
     QString wmCommand();
     QString wmClientMachine(bool use_localhost) const;
     const ClientMachine *clientMachine() const;
     virtual bool isLocalhost() const;
     xcb_window_t wmClientLeader() const;
     virtual pid_t pid() const;
     static bool resourceMatch(const Window *c1, const Window *c2);
 
     bool readyForPainting() const; // true if the window has been already painted its contents
     xcb_visualid_t visual() const;
     bool shape() const;
     QRegion inputShape() const;
     void setOpacity(qreal opacity);
     qreal opacity() const;
     int depth() const;
     bool hasAlpha() const;
     virtual bool setupCompositing();
     virtual void finishCompositing(ReleaseReason releaseReason = ReleaseReason::Release);
     // these call workspace->addRepaint(), but first transform the damage if needed
     void addWorkspaceRepaint(const QRectF &r);
     void addWorkspaceRepaint(int x, int y, int w, int h);
     void addWorkspaceRepaint(const QRegion &region);
     EffectWindowImpl *effectWindow();
     const EffectWindowImpl *effectWindow() const;
     SurfaceItem *surfaceItem() const;
     WindowItem *windowItem() const;
     /**
      * Window will be temporarily painted as if being at the top of the stack.
      * Only available if Compositor is active, if not active, this method is a no-op.
      */
     void elevate(bool elevate);
 
     /**
      * Returns the Shadow associated with this Window or @c null if it has no shadow.
      */
     Shadow *shadow() const;
     /**
      * Updates the Shadow associated with this Window from X11 Property.
      * Call this method when the Property changes or Compositing is started.
      */
     void updateShadow();
     /**
      * Whether the Window currently wants the shadow to be rendered. Default
      * implementation always returns @c true.
      */
     virtual bool wantsShadowToBeRendered() const;
 
     /**
      * This method returns the area that the Window window reports to be opaque.
      * It is supposed to only provide valuable information if hasAlpha is @c true .
      * @see hasAlpha
      */
     const QRegion &opaqueRegion() const;
     QVector<QRectF> shapeRegion() const;
 
     bool skipsCloseAnimation() const;
     void setSkipCloseAnimation(bool set);
 
     quint64 surfaceSerial() const;
     quint32 pendingSurfaceId() const;
     KWaylandServer::SurfaceInterface *surface() const;
     void setSurface(KWaylandServer::SurfaceInterface *surface);
 
     const std::shared_ptr<QOpenGLFramebufferObject> &internalFramebufferObject() const;
     QImage internalImageObject() const;
 
     /**
      * @returns Transformation to map from global to window coordinates.
      *
      * Default implementation returns a translation on negative pos().
      * @see pos
      */
     virtual QMatrix4x4 inputTransformation() const;
 
     /**
      * Returns @c true if the window can accept input at the specified position @a point.
      */
     virtual bool hitTest(const QPointF &point) const;
 
     /**
      * The window has a popup grab. This means that when it got mapped the
      * parent window had an implicit (pointer) grab.
      *
      * Normally this is only relevant for transient windows.
      *
      * Once the popup grab ends (e.g. pointer press outside of any Window of
      * the client), the method popupDone should be invoked.
      *
      * The default implementation returns @c false.
      * @see popupDone
      * @since 5.10
      */
     virtual bool hasPopupGrab() const
     {
         return false;
     }
     /**
      * This method should be invoked for windows with a popup grab when
      * the grab ends.
      *
      * The default implementation does nothing.
      * @see hasPopupGrab
      * @since 5.10
      */
     virtual void popupDone(){};
 
     /**
      * @brief Finds the Window matching the condition expressed in @p func in @p list.
      *
      * The method is templated to operate on either a list of windows or on a list of
      * a subclass type of Window.
      * @param list The list to search in
      * @param func The condition function (compare std::find_if)
      * @return T* The found Window or @c null if there is no matching Window
      */
     template<class T, class U>
     static T *findInList(const QList<T *> &list, std::function<bool(const U *)> func);
 
     /**
      * Whether the window is a popup.
      *
      * Popups can be used to implement popup menus, tooltips, combo boxes, etc.
      *
      * @since 5.15
      */
     virtual bool isPopupWindow() const;
 
     /**
      * A UUID to uniquely identify this Window independent of windowing system.
      */
     QUuid internalId() const
     {
         return m_internalId;
     }
 
     int stackingOrder() const;
     void setStackingOrder(int order); ///< @internal
 
     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 isZombie() const;
     bool isActive() const
     {
         return m_active;
     }
     /**
      * Sets the window's active state to \a act.
      *
      * This function does only change the visual appearance of the window,
      * it does not change the focus setting. Use
      * Workspace::activateClient() or Workspace::requestFocus() instead.
      *
      * If a window 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;
 
     virtual void updateMouseGrab();
     /**
      * @returns The caption consisting of captionNormal and captionSuffix
      * @see captionNormal
      * @see captionSuffix
      */
     QString caption() const;
     /**
      * @returns The caption as set by the Window without any suffix.
      * @see caption
      * @see captionSuffix
      */
     virtual QString captionNormal() const = 0;
     /**
      * @returns The suffix added to the caption (e.g. shortcut, machine name, etc.)
      * @see caption
      * @see captionNormal
      */
     virtual QString captionSuffix() const = 0;
     virtual bool isPlaceable() const;
     virtual bool isCloseable() const = 0;
     virtual bool isShown() const = 0;
     virtual bool isHiddenInternal() const = 0;
     virtual void hideClient() = 0;
     virtual void showClient() = 0;
     virtual bool isFullScreenable() const;
     virtual bool isFullScreen() const;
     virtual bool isRequestedFullScreen() const;
     // TODO: remove boolean trap
     virtual Window *findModal(bool allow_itself = false) = 0;
     virtual bool isTransient() const;
     /**
      * @returns Whether there is a hint available to place the Window on it's parent, default @c false.
      * @see transientPlacementHint
      */
     virtual bool hasTransientPlacementHint() const;
     /**
      * Only valid id hasTransientPlacementHint is true
      * @returns The position the transient wishes to position itself
      */
     virtual QRectF transientPlacement(const QRectF &bounds) const;
     const Window *transientFor() const;
     Window *transientFor();
     /**
      * @returns @c true if transient is the transient_for window for this window,
      *  or recursively the transient_for window
      * @todo: remove boolean trap
      */
     virtual bool hasTransient(const Window *transient, bool indirect) const;
     const QList<Window *> &transients() const; // Is not indirect
     virtual void addTransient(Window *transient);
     virtual void removeTransient(Window *transient);
     virtual QList<Window *> mainWindows() const; // Call once before loop , is not indirect
     QList<Window *> allMainWindows() 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 sendToOutput(Output *output);
     const QKeySequence &shortcut() const
     {
         return _shortcut;
     }
     void setShortcut(const QString &cut);
     bool performMouseCommand(Options::MouseCommand, const QPointF &globalPos);
     void setOnAllDesktops(bool set);
     void setDesktop(int);
     void enterDesktop(VirtualDesktop *desktop);
     void leaveDesktop(VirtualDesktop *desktop);
 
     /**
      * Set the window as being on the attached list of desktops
      * On X11 it will be set to the last entry
      */
     void setDesktops(QVector<VirtualDesktop *> desktops);
 
     QVector<uint> x11DesktopIds() const;
     QStringList desktopIds() const;
 
     void setMinimized(bool set);
     /**
      * Minimizes this window 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);
 
     QRectF geometryRestore() const;
     virtual MaximizeMode maximizeMode() const;
     virtual MaximizeMode requestedMaximizeMode() const;
     virtual void maximize(MaximizeMode mode);
     /**
      * Sets the maximization according to @p vertically and @p horizontally.
      */
     Q_INVOKABLE void setMaximize(bool vertically, bool horizontally);
     virtual bool noBorder() const;
     virtual void setNoBorder(bool set);
     QPalette palette();
     const Decoration::DecorationPalette *decorationPalette();
     /**
      * Returns whether the window is resizable or has a fixed size.
      */
     virtual bool isResizable() const = 0;
     /**
      * Returns whether the window is moveable or has a fixed position.
      */
     virtual bool isMovable() const = 0;
     /**
      * Returns whether the window can be moved to another screen.
      */
     virtual bool isMovableAcrossScreens() const = 0;
     /**
      * Returns @c true if the window is shaded and shadeMode is @c ShadeNormal; otherwise returns @c false.
      */
     virtual bool isShade() const
     {
         return shadeMode() == ShadeNormal;
     }
     ShadeMode shadeMode() const; // Prefer isShade()
     void setShade(bool set);
     void setShade(ShadeMode mode);
     void toggleShade();
     void cancelShadeHoverTimer();
     /**
      * Whether the Window can be shaded. Default implementation returns @c false.
      */
     virtual bool isShadeable() const;
     virtual bool isMaximizable() const;
     virtual bool isMinimizable() const;
     virtual QRectF iconGeometry() const;
     virtual bool userCanSetFullScreen() const;
     virtual bool userCanSetNoBorder() const;
     virtual void checkNoBorder();
 
     /**
      * Refresh Window's cache of activites
      * Called when activity daemon status changes
      */
     virtual void checkActivities(){};
 
     void setOnActivity(const QString &activity, bool enable);
     void setOnActivities(const QStringList &newActivitiesList);
     void setOnAllActivities(bool all);
     virtual void updateActivities(bool includeTransients);
     void blockActivityUpdates(bool b = true);
 
     const WindowRules *rules() const
     {
         return &m_rules;
     }
     void removeRule(Rules *r);
     void setupWindowRules(bool ignore_temporary);
     void evaluateWindowRules();
     virtual void applyWindowRules();
     virtual bool takeFocus() = 0;
     virtual bool wantsInput() const = 0;
     /**
      * Whether a dock window wants input.
      *
      * By default KWin doesn't pass focus to a dock window unless a force activate
      * request is provided.
      *
      * This method allows to have dock windows take focus also through flags set on
      * the window.
      *
      * The default implementation returns @c false.
      */
     virtual bool dockWantsInput() const;
     void checkWorkspacePosition(QRectF oldGeometry = QRectF(), const VirtualDesktop *oldDesktop = nullptr);
     virtual xcb_timestamp_t userTime() const;
     virtual void updateWindowRules(Rules::Types selection);
 
     void growHorizontal();
     void shrinkHorizontal();
     void growVertical();
     void shrinkVertical();
     void updateInteractiveMoveResize(const QPointF &currentGlobalCursor);
     /**
      * Ends move resize when all pointer buttons are up again.
      */
     void endInteractiveMoveResize();
     void keyPressEvent(uint key_code);
 
     virtual void pointerEnterEvent(const QPointF &globalPos);
     virtual void pointerLeaveEvent();
 
     Qt::Edge 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(qreal left, qreal top);
 
     /**
      * Sets 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.
      * @param keyboard Defines whether to take keyboard cursor into account.
      */
     void setQuickTileMode(QuickTileMode mode, bool keyboard = false);
     QuickTileMode quickTileMode() const
     {
         return QuickTileMode(m_quickTileMode);
     }
     virtual Layer layer() const;
     void updateLayer();
 
     Tile *tile() const;
 
     void move(const QPointF &point);
     void resize(const QSizeF &size);
     void moveResize(const QRectF &rect);
 
     virtual QRectF resizeWithChecks(const QRectF &geometry, const QSizeF &s) = 0;
     void keepInArea(QRectF area, bool partial = false);
     QRectF keepInArea(QRectF geometry, QRectF area, bool partial = false);
     virtual QSizeF minSize() const;
     virtual QSizeF maxSize() const;
 
     /**
      * How to resize the window in order to obey constraints (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
     };
 
     virtual QSizeF constrainClientSize(const QSizeF &size, SizeMode mode = SizeModeAny) const;
     QSizeF constrainFrameSize(const QSizeF &size, SizeMode mode = SizeModeAny) const;
 
     /**
      * Calculates the matching client position for the given frame position @p point.
      */
     virtual QPointF framePosToClientPos(const QPointF &point) const;
     /**
      * Calculates the matching frame position for the given client position @p point.
      */
     virtual QPointF clientPosToFramePos(const QPointF &point) const;
     /**
      * Calculates the matching client size for the given frame size @p size.
      *
      * Notice that size constraints won't be applied.
      *
      * Default implementation returns the frame size with frame margins being excluded.
      */
     virtual QSizeF frameSizeToClientSize(const QSizeF &size) const;
     /**
      * Calculates the matching frame size for the given client size @p size.
      *
      * Notice that size constraints won't be applied.
      *
      * Default implementation returns the client size with frame margins being included.
      */
     virtual QSizeF clientSizeToFrameSize(const QSizeF &size) const;
     /**
      * Calculates the matching client rect for the given frame rect @p rect.
      *
      * Notice that size constraints won't be applied.
      */
     QRectF frameRectToClientRect(const QRectF &rect) const;
     /**
      * Calculates the matching frame rect for the given client rect @p rect.
      *
      * Notice that size constraints won't be applied.
      */
     QRectF clientRectToFrameRect(const QRectF &rect) const;
 
     /**
      * Returns the last requested geometry. The returned value indicates the bounding
      * geometry, meaning that the client can commit smaller window geometry if the window
      * is resized.
      *
      * The main difference between the frame geometry and the move-resize geometry is
      * that the former specifies the current geometry while the latter specifies the next
      * geometry.
      */
     QRectF moveResizeGeometry() const;
 
     /**
      * Returns the output where the last move or resize operation has occurred. The
      * window is expected to land on this output after the move/resize operation completes.
      */
     Output *moveResizeOutput() const;
     void setMoveResizeOutput(Output *output);
 
     /**
      * Returns @c true if the Client is being interactively moved; otherwise @c false.
      */
     bool isInteractiveMove() const
     {
         return isInteractiveMoveResize() && interactiveMoveResizeGravity() == Gravity::None;
     }
     /**
      * Returns @c true if the Client is being interactively resized; otherwise @c false.
      */
     bool isInteractiveResize() const
     {
         return isInteractiveMoveResize() && interactiveMoveResizeGravity() != Gravity::None;
     }
     /**
      * Cursor shape for move/resize mode.
      */
     CursorShape cursor() const
     {
         return m_interactiveMoveResize.cursor;
     }
 
     virtual StrutRect strutRect(StrutArea area) const;
     StrutRects strutRects() const;
     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 Window 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.get();
     }
     const KDecoration2::Decoration *decoration() const
     {
         return m_decoration.decoration.get();
     }
     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(QRectF &left, QRectF &top, QRectF &right, QRectF &bottom) const;
     void processDecorationMove(const QPointF &localPos, const QPointF &globalPos);
     bool processDecorationButtonPress(QMouseEvent *event, bool ignoreMenu = false);
     void processDecorationButtonRelease(QMouseEvent *event);
 
     virtual void invalidateDecoration();
 
     /**
      * 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();
 
     /**
      * @returns the geometry of the virtual keyboard
      * This geometry is in global coordinates
      */
     QRectF virtualKeyboardGeometry() const;
 
     /**
      * Sets the geometry of the virtual keyboard, The window may resize itself in order to make space for the keybaord
      * This geometry is in global coordinates
      */
     virtual void setVirtualKeyboardGeometry(const QRectF &geo);
 
     /**
      * Restores the Window after it had been hidden due to show on screen edge functionality.
      * The Window also gets raised (e.g. Panel mode windows can cover) and the Window
      * gets informed in a window specific way that it is shown and raised again.
      */
     virtual void showOnScreenEdge();
 
     QString desktopFileName() const
     {
         return m_desktopFileName;
     }
 
     /**
      * Tries to terminate the process of this Window.
      *
      * Implementing subclasses can perform a windowing system solution for terminating.
      */
     virtual void killWindow() = 0;
     virtual void destroyWindow() = 0;
 
     enum class SameApplicationCheck {
         RelaxedForActive = 1 << 0,
         AllowCrossProcesses = 1 << 1
     };
     Q_DECLARE_FLAGS(SameApplicationChecks, SameApplicationCheck)
     static bool belongToSameApplication(const Window *c1, const Window *c2, SameApplicationChecks checks = SameApplicationChecks());
 
     bool hasApplicationMenu() const;
     bool applicationMenuActive() const
     {
         return m_applicationMenuActive;
     }
     void setApplicationMenuActive(bool applicationMenuActive);
 
     QString applicationMenuServiceName() const
     {
         return m_applicationMenuServiceName;
     }
     QString applicationMenuObjectPath() const
     {
         return m_applicationMenuObjectPath;
     }
 
     virtual QString preferredColorScheme() const;
     QString colorScheme() const;
     void setColorScheme(const QString &colorScheme);
 
     /**
      * Request showing the application menu bar
      * @param actionId The DBus menu ID of the action that should be highlighted, 0 for the root menu
      */
     void showApplicationMenu(int actionId);
 
     bool unresponsive() const;
 
     /**
      * Default implementation returns @c null.
      * Mostly intended for X11 clients, from EWMH:
      * @verbatim
      * If the WM_TRANSIENT_FOR property is set to None or Root window, the window should be
      * treated as a transient for all other windows in the same group. It has been noted that this
      * is a slight ICCCM violation, but as this behavior is pretty standard for many toolkits and
      * window managers, and is extremely unlikely to break anything, it seems reasonable to document
      * it as standard.
      * @endverbatim
      */
     virtual bool groupTransient() const;
     /**
      * Default implementation returns @c null.
      *
      * Mostly for X11 clients, holds the client group
      */
     virtual const Group *group() const;
     /**
      * Default implementation returns @c null.
      *
      * Mostly for X11 clients, holds the client group
      */
     virtual Group *group();
 
     /**
      * Returns whether window rules can be applied to this client.
      *
      * Default implementation returns @c false.
      */
     virtual bool supportsWindowRules() const;
 
     /**
      * Return window management interface
      */
     KWaylandServer::PlasmaWindowInterface *windowManagementInterface() const
     {
         return m_windowManagementInterface;
     }
 
     QRectF fullscreenGeometryRestore() const;
 
     /**
      * Helper function to compute the icon out of an application id defined by @p fileName
      *
      * @returns an icon name that can be used with QIcon::fromTheme()
      */
     static QString iconFromDesktopFile(const QString &fileName);
 
     static QString findDesktopFile(const QString &fileName);
 
     /**
      * Sets the last user usage serial of the surface as @p serial
      */
     void setLastUsageSerial(quint32 serial);
     quint32 lastUsageSerial() const;
 
     uint32_t interactiveMoveResizeCount() const;
 
     void setTile(Tile *tile);
 
     void refOffscreenRendering();
     void unrefOffscreenRendering();
 
 public Q_SLOTS:
     virtual void closeWindow() = 0;
 
 protected Q_SLOTS:
     void setReadyForPainting();
 
 Q_SIGNALS:
     void stackingOrderChanged();
     void shadeChanged();
     void opacityChanged(KWin::Window *window, qreal oldOpacity);
     void damaged(KWin::Window *window);
     void inputTransformationChanged();
     /**
      * This signal is emitted when the Window's frame geometry changes.
      * @deprecated since 5.19, use frameGeometryChanged instead
      */
     void geometryChanged();
     void geometryShapeChanged(KWin::Window *window, const QRectF &old);
     void windowClosed(KWin::Window *window, KWin::Deleted *deleted);
     void windowShown(KWin::Window *window);
     void windowHidden(KWin::Window *window);
     /**
      * Signal emitted when the window's shape state changed. That is if it did not have a shape
      * and received one or if the shape was withdrawn. Think of Chromium enabling/disabling KWin's
      * decoration.
      */
     void shapedChanged();
     /**
      * Emitted whenever the Window's screen changes. This can happen either in consequence to
      * a screen being removed/added or if the Window's geometry changes.
      * @since 4.11
      */
     void screenChanged();
     void skipCloseAnimationChanged();
     /**
      * Emitted whenever the window role of the window changes.
      * @since 5.0
      */
     void windowRoleChanged();
     /**
      * Emitted whenever the window class name or resource name of the window changes.
      * @since 5.0
      */
     void windowClassChanged();
     /**
      * @since 5.4
      */
     void hasAlphaChanged();
 
     /**
      * Emitted whenever the Surface for this Window changes.
      */
     void surfaceChanged();
 
     /**
      * Emitted whenever the window's shadow changes.
      * @since 5.15
      */
     void shadowChanged();
 
     /**
      * This signal is emitted when the Window's buffer geometry changes.
      */
     void bufferGeometryChanged(KWin::Window *window, const QRectF &oldGeometry);
     /**
      * This signal is emitted when the Window's frame geometry changes.
      */
     void frameGeometryChanged(KWin::Window *window, const QRectF &oldGeometry);
     /**
      * This signal is emitted when the Window's client geometry has changed.
      */
     void clientGeometryChanged(KWin::Window *window, const QRectF &oldGeometry);
 
     /**
      * This signal is emitted when the frame geometry is about to change. the new geometry is not known yet
      */
     void frameGeometryAboutToChange(KWin::Window *window);
 
     /**
      * This signal is emitted when the visible geometry has changed.
      */
     void visibleGeometryChanged();
 
     /**
      * This signal is emitted when associated tile has changed, including from and to none
      */
     void tileChanged(KWin::Tile *tile);
 
     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::Window *, int); // to be forwarded by Workspace
     void desktopChanged();
     void activitiesChanged(KWin::Window *window);
     void x11DesktopIdsChanged();
     void minimizedChanged();
     void clientMinimized(KWin::Window *window, bool animate);
     void clientUnminimized(KWin::Window *window, bool animate);
     void paletteChanged(const QPalette &p);
     void colorSchemeChanged();
     void captionChanged();
     void clientMaximizedStateAboutToChange(KWin::Window *, MaximizeMode);
     void clientMaximizedStateChanged(KWin::Window *, MaximizeMode);
     void clientMaximizedStateChanged(KWin::Window *c, bool h, bool v);
     void transientChanged();
     void modalChanged();
     void quickTileModeChanged();
     void moveResizedChanged();
     void moveResizeCursorChanged(CursorShape);
     void clientStartUserMovedResized(KWin::Window *);
     void clientStepUserMovedResized(KWin::Window *, const QRectF &);
     void clientFinishUserMovedResized(KWin::Window *);
     void closeableChanged(bool);
     void minimizeableChanged(bool);
     void shadeableChanged(bool);
     void maximizeableChanged(bool);
     void desktopFileNameChanged();
     void applicationMenuChanged();
     void hasApplicationMenuChanged(bool);
     void applicationMenuActiveChanged(bool);
     void unresponsiveChanged(bool);
     void decorationChanged();
     void hiddenChanged();
     void lockScreenOverlayChanged();
 
 protected:
     void setWindowHandles(xcb_window_t client);
     void detectShape(xcb_window_t id);
     virtual void propertyNotifyEvent(xcb_property_notify_event_t *e);
     virtual void clientMessageEvent(xcb_client_message_event_t *e);
     Xcb::Property fetchWmClientLeader() const;
     void readWmClientLeader(Xcb::Property &p);
     void getWmClientLeader();
     void getWmClientMachine();
 
     /**
      * This function fetches the opaque region from this Window.
      * Will only be called on corresponding property changes and for initialization.
      */
     void getWmOpaqueRegion();
     void discardShapeRegion();
 
     virtual std::unique_ptr<WindowItem> createItem(Scene *scene) = 0;
 
     void getResourceClass();
     void setResourceClass(const QString &name, const QString &className = QString());
     Xcb::Property fetchSkipCloseAnimation() const;
     void readSkipCloseAnimation(Xcb::Property &prop);
     void getSkipCloseAnimation();
     void copyToDeleted(Window *c);
     void disownDataPassedToDeleted();
     void setDepth(int depth);
 
     Output *m_output = nullptr;
     QRectF m_frameGeometry;
     QRectF m_clientGeometry;
     QRectF m_bufferGeometry;
     xcb_visualid_t m_visual;
     int bit_depth;
     NETWinInfo *info;
     bool ready_for_painting;
     /**
      * An FBO object KWin internal windows might render to.
      */
     std::shared_ptr<QOpenGLFramebufferObject> m_internalFBO;
     QImage m_internalImage;
 
 protected:
     Window();
     void setFirstInTabBox(bool enable)
     {
         m_firstInTabBox = enable;
     }
     void setIcon(const QIcon &icon);
     void startAutoRaise();
     void autoRaise();
     bool isMostRecentlyRaised() const;
     void markAsZombie();
     /**
      * 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 setShade() once the shadeMode value got updated, but before the changed signal
      * is emitted.
      *
      * Default implementation does nothing.
      */
     virtual void doSetShade(ShadeMode previousShadeMode);
     /**
      * Called from setDeskop once the desktop value got updated, but before the changed signal
      * is emitted.
      *
      * Default implementation does nothing.
      */
     virtual void doSetDesktop();
     /**
      * Called from @ref setOnActivities just after the activity list member has been updated, but before
      * @ref updateActivities is called.
      *
      * @param activityList the new list of activities set on that window
      *
      * Default implementation does nothing
      */
     virtual void doSetOnActivities(const QStringList &activityList);
     /**
      * Called from @ref minimize and @ref unminimize once the minimized value got updated, but before the
      * changed signal is emitted.
      *
      * Default implementation does nothig.
      */
     virtual void doMinimize();
     virtual bool belongsToSameApplication(const Window *other, SameApplicationChecks checks) const = 0;
 
     virtual void doSetSkipTaskbar();
     virtual void doSetSkipPager();
     virtual void doSetSkipSwitcher();
     virtual void doSetDemandsAttention();
     virtual void doSetQuickTileMode();
 
     void setupWindowManagementInterface();
     void updateColorScheme();
     void ensurePalette();
     void setTransientFor(Window *transientFor);
     /**
      * Just removes the @p cl from the transients without any further checks.
      */
     void removeTransientFromList(Window *cl);
 
     virtual Layer belongsToLayer() const;
     virtual bool belongsToDesktop() const;
     void invalidateLayer();
     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;
     }
     void updateElectricGeometryRestore();
     QRectF quickTileGeometryRestore() const;
     QRectF quickTileGeometry(QuickTileMode mode, const QPointF &pos) const;
     void updateQuickTileMode(QuickTileMode newMode)
     {
         m_quickTileMode = newMode;
     }
 
     // geometry handling
     void checkOffscreenPosition(QRectF *geom, const QRectF &screenArea);
     int borderLeft() const;
     int borderRight() const;
     int borderTop() const;
     int borderBottom() const;
     void setGeometryRestore(const QRectF &rect);
 
     void blockGeometryUpdates(bool block);
     void blockGeometryUpdates();
     void unblockGeometryUpdates();
     bool areGeometryUpdatesBlocked() const;
     enum class MoveResizeMode : uint {
         None,
         Move = 0x1,
         Resize = 0x2,
         MoveResize = Move | Resize,
     };
     MoveResizeMode pendingMoveResizeMode() const;
     void setPendingMoveResizeMode(MoveResizeMode mode);
     virtual void moveResizeInternal(const QRectF &rect, MoveResizeMode mode) = 0;
 
     /**
      * @returns whether the Window is currently in move resize mode
      */
     bool isInteractiveMoveResize() const
     {
         return m_interactiveMoveResize.enabled;
     }
     /**
      * Sets whether the Window is in move resize mode to @p enabled.
      */
     void setInteractiveMoveResize(bool enabled)
     {
         m_interactiveMoveResize.enabled = enabled;
     }
     /**
      * @returns whether the move resize mode is unrestricted.
      */
     bool isUnrestrictedInteractiveMoveResize() const
     {
         return m_interactiveMoveResize.unrestricted;
     }
     /**
      * Sets whether move resize mode is unrestricted to @p set.
      */
     void setUnrestrictedInteractiveMoveResize(bool set)
     {
         m_interactiveMoveResize.unrestricted = set;
     }
     QPointF interactiveMoveOffset() const
     {
         return m_interactiveMoveResize.offset;
     }
     void setInteractiveMoveOffset(const QPointF &offset)
     {
         m_interactiveMoveResize.offset = offset;
     }
     QPointF invertedInteractiveMoveOffset() const
     {
         return m_interactiveMoveResize.invertedOffset;
     }
     void setInvertedInteractiveMoveOffset(const QPointF &offset)
     {
         m_interactiveMoveResize.invertedOffset = offset;
     }
     QRectF initialInteractiveMoveResizeGeometry() const
     {
         return m_interactiveMoveResize.initialGeometry;
     }
     void setMoveResizeGeometry(const QRectF &geo);
     Gravity interactiveMoveResizeGravity() const
     {
         return m_interactiveMoveResize.gravity;
     }
     void setInteractiveMoveResizeGravity(Gravity gravity)
     {
         m_interactiveMoveResize.gravity = gravity;
     }
     bool isInteractiveMoveResizePointerButtonDown() const
     {
         return m_interactiveMoveResize.buttonDown;
     }
     void setInteractiveMoveResizePointerButtonDown(bool down)
     {
         m_interactiveMoveResize.buttonDown = down;
     }
     Output *interactiveMoveResizeStartOutput() const
     {
         return m_interactiveMoveResize.startOutput;
     }
     void checkUnrestrictedInteractiveMoveResize();
     /**
      * Sets an appropriate cursor shape for the logical mouse position.
      */
     void updateCursor();
     void startDelayedInteractiveMoveResize();
     void stopDelayedInteractiveMoveResize();
     bool startInteractiveMoveResize();
     /**
      * Called from startMoveResize.
      *
      * Implementing classes should return @c false if starting move resize should
      * get aborted. In that case startMoveResize will also return @c false.
      *
      * Base implementation returns @c true.
      */
     virtual bool doStartInteractiveMoveResize();
     virtual void doFinishInteractiveMoveResize();
     void finishInteractiveMoveResize(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 leaveInteractiveMoveResize();
     /*
      * 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);
     void resetQuickTilingMaximizationZones();
     /**
      * Whether a sync request is still pending.
      * Default implementation returns @c false.
      */
     virtual bool isWaitingForInteractiveMoveResizeSync() const;
     /**
      * Called during handling a resize. Implementing subclasses can use this
      * method to perform windowing system specific syncing.
      *
      * Default implementation does nothing.
      */
     virtual void doInteractiveResizeSync(const QRectF &rect);
     void handleInteractiveMoveResize(int x, int y, int x_root, int y_root);
     void handleInteractiveMoveResize(const QPointF &local, const QPointF &global);
     void dontInteractiveMoveResize();
 
     virtual QSizeF resizeIncrements() const;
 
     /**
      * Returns the interactive move resize gravity depending on the Decoration's section
      * under mouse. If no decoration it returns Gravity::None.
      */
     Gravity mouseGravity() const;
 
     void setDecoration(std::shared_ptr<KDecoration2::Decoration> decoration);
     void startDecorationDoubleClickTimer();
     void invalidateDecorationDoubleClickTimer();
     void updateDecorationInputShape();
 
     void setDesktopFileName(const QString &name);
     QString iconFromDesktopFile() const;
 
     void updateApplicationMenuServiceName(const QString &serviceName);
     void updateApplicationMenuObjectPath(const QString &objectPath);
 
     void setUnresponsive(bool unresponsive);
 
     virtual void setShortcutInternal();
     QString shortcutCaptionSuffix() const;
     virtual void updateCaption() = 0;
 
     /**
      * Looks for another Window with same captionNormal and captionSuffix.
      * If no such Window exists @c nullptr is returned.
      */
     Window *findWindowWithSameCaption() const;
 
     void finishWindowRules();
     void discardTemporaryRules();
 
     bool tabTo(Window *other, bool behind, bool activate);
 
     void startShadeHoverTimer();
     void startShadeUnhoverTimer();
 
     // The geometry that the window should be restored when the virtual keyboard closes
     QRectF keyboardGeometryRestore() const;
     void setKeyboardGeometryRestore(const QRectF &geom);
 
     QRectF m_virtualKeyboardGeometry;
 
     void setFullscreenGeometryRestore(const QRectF &geom);
 
     void cleanTabBox();
 
     QStringList m_activityList;
 
 private Q_SLOTS:
     void shadeHover();
     void shadeUnhover();
 
 private:
     void maybeSendFrameCallback();
 
     // when adding new data members, check also copyToDeleted()
     QUuid m_internalId;
     Xcb::Window m_client;
     bool is_shape;
     std::unique_ptr<EffectWindowImpl> m_effectWindow;
     std::unique_ptr<WindowItem> m_windowItem;
     std::unique_ptr<Shadow> m_shadow;
     QString resource_name;
     QString resource_class;
     ClientMachine *m_clientMachine;
     xcb_window_t m_wmClientLeader;
     QRegion opaque_region;
     mutable QVector<QRectF> m_shapeRegion;
     mutable bool m_shapeRegionIsValid = false;
     bool m_skipCloseAnimation;
     quint32 m_pendingSurfaceId = 0;
     quint64 m_surfaceSerial = 0;
     QPointer<KWaylandServer::SurfaceInterface> m_surface;
     // when adding new data members, check also copyToDeleted()
     qreal m_opacity = 1.0;
     int m_stackingOrder = 0;
 
     void handlePaletteChange();
     QRectF moveToArea(const QRectF &geometry, const QRectF &oldArea, const QRectF &newArea);
     QRectF ensureSpecialStateGeometry(const QRectF &geometry);
 
     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_zombie = false;
     bool m_keepAbove = false;
     bool m_keepBelow = false;
     bool m_demandsAttention = false;
     bool m_minimized = false;
     QTimer *m_autoRaiseTimer = nullptr;
     QTimer *m_shadeHoverTimer = nullptr;
     ShadeMode m_shadeMode = ShadeNone;
     QVector<VirtualDesktop *> m_desktops;
 
     int m_activityUpdatesBlocked = 0;
     bool m_blockedActivityUpdatesRequireTransients = false;
 
     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;
 
     KWaylandServer::PlasmaWindowInterface *m_windowManagementInterface = nullptr;
 
     Window *m_transientFor = nullptr;
     QList<Window *> m_transients;
     bool m_modal = false;
     Layer m_layer = UnknownLayer;
     QPointer<Tile> m_tile;
 
     // electric border/quick tiling
     QuickTileMode m_electricMode = QuickTileFlag::None;
     QRectF m_electricGeometryRestore;
     bool m_electricMaximizing = false;
     // The quick tile mode of this window.
     int m_quickTileMode = int(QuickTileFlag::None);
     QTimer *m_electricMaximizingDelay = nullptr;
 
     // geometry
     int m_blockGeometryUpdates = 0; // > 0 = New geometry is remembered, but not actually set
     MoveResizeMode m_pendingMoveResizeMode = MoveResizeMode::None;
     friend class GeometryUpdatesBlocker;
     Output *m_moveResizeOutput;
     QRectF m_moveResizeGeometry;
     QRectF m_keyboardGeometryRestore;
     QRectF m_maximizeGeometryRestore;
     QRectF m_fullscreenGeometryRestore;
 
     struct
     {
         bool enabled = false;
         bool unrestricted = false;
         QPointF offset;
         QPointF invertedOffset;
         QRectF initialGeometry;
         QRectF initialGeometryRestore;
         Gravity gravity = Gravity::None;
         bool buttonDown = false;
         CursorShape cursor = Qt::ArrowCursor;
         Output *startOutput = nullptr;
         QTimer *delayedTimer = nullptr;
         uint32_t counter = 0;
         MaximizeMode initialMaximizeMode;
         QuickTileMode initialQuickTileMode;
     } m_interactiveMoveResize;
 
     struct
     {
         std::shared_ptr<KDecoration2::Decoration> decoration;
         QPointer<Decoration::DecoratedClientImpl> client;
         QElapsedTimer doubleClickTimer;
         QRegion inputRegion;
     } m_decoration;
     QString m_desktopFileName;
 
     bool m_applicationMenuActive = false;
     QString m_applicationMenuServiceName;
     QString m_applicationMenuObjectPath;
 
     bool m_unresponsive = false;
 
     QKeySequence _shortcut;
 
     WindowRules m_rules;
     quint32 m_lastUsageSerial = 0;
     bool m_lockScreenOverlay = false;
     uint32_t m_offscreenRenderCount = 0;
     QTimer m_offscreenFramecallbackTimer;
 };
 
 /**
  * Helper for Window::blockGeometryUpdates() being called in pairs (true/false)
  */
 class GeometryUpdatesBlocker
 {
 public:
     explicit GeometryUpdatesBlocker(Window *c)
         : cl(c)
     {
         cl->blockGeometryUpdates(true);
     }
     ~GeometryUpdatesBlocker()
     {
         cl->blockGeometryUpdates(false);
     }
 
 private:
     Window *cl;
 };
 
 inline xcb_window_t Window::window() const
 {
     return m_client;
 }
 
 inline void Window::setWindowHandles(xcb_window_t w)
 {
     Q_ASSERT(!m_client.isValid() && w != XCB_WINDOW_NONE);
     m_client.reset(w, false);
 }
 
 inline QRectF Window::bufferGeometry() const
 {
     return m_bufferGeometry;
 }
 
 inline QRectF Window::clientGeometry() const
 {
     return m_clientGeometry;
 }
 
 inline QSizeF Window::clientSize() const
 {
     return m_clientGeometry.size();
 }
 
 inline QRectF Window::frameGeometry() const
 {
     return m_frameGeometry;
 }
 
 inline QSizeF Window::size() const
 {
     return m_frameGeometry.size();
 }
 
 inline QPointF Window::pos() const
 {
     return m_frameGeometry.topLeft();
 }
 
 inline qreal Window::x() const
 {
     return m_frameGeometry.x();
 }
 
 inline qreal Window::y() const
 {
     return m_frameGeometry.y();
 }
 
 inline qreal Window::width() const
 {
     return m_frameGeometry.width();
 }
 
 inline qreal Window::height() const
 {
     return m_frameGeometry.height();
 }
 
 inline QRectF Window::rect() const
 {
     return QRectF(0, 0, width(), height());
 }
 
 inline bool Window::readyForPainting() const
 {
     return ready_for_painting;
 }
 
 inline xcb_visualid_t Window::visual() const
 {
     return m_visual;
 }
 
 inline bool Window::isDesktop() const
 {
     return windowType() == NET::Desktop;
 }
 
 inline bool Window::isDock() const
 {
     return windowType() == NET::Dock;
 }
 
 inline bool Window::isMenu() const
 {
     return windowType() == NET::Menu;
 }
 
 inline bool Window::isToolbar() const
 {
     return windowType() == NET::Toolbar;
 }
 
 inline bool Window::isSplash() const
 {
     return windowType() == NET::Splash;
 }
 
 inline bool Window::isUtility() const
 {
     return windowType() == NET::Utility;
 }
 
 inline bool Window::isDialog() const
 {
     return windowType() == NET::Dialog;
 }
 
 inline bool Window::isNormalWindow() const
 {
     return windowType() == NET::Normal;
 }
 
 inline bool Window::isDropdownMenu() const
 {
     return windowType() == NET::DropdownMenu;
 }
 
 inline bool Window::isPopupMenu() const
 {
     return windowType() == NET::PopupMenu;
 }
 
 inline bool Window::isTooltip() const
 {
     return windowType() == NET::Tooltip;
 }
 
 inline bool Window::isNotification() const
 {
     return windowType() == NET::Notification;
 }
 
 inline bool Window::isCriticalNotification() const
 {
     return windowType() == NET::CriticalNotification;
 }
 
 inline bool Window::isAppletPopup() const
 {
     return windowType() == NET::AppletPopup;
 }
 
 inline bool Window::isOnScreenDisplay() const
 {
     return windowType() == NET::OnScreenDisplay;
 }
 
 inline bool Window::isComboBox() const
 {
     return windowType() == NET::ComboBox;
 }
 
 inline bool Window::isDNDIcon() const
 {
     return windowType() == NET::DNDIcon;
 }
 
 inline bool Window::isLockScreen() const
 {
     return false;
 }
 
 inline bool Window::isInputMethod() const
 {
     return false;
 }
 
 inline bool Window::isOutline() const
 {
     return false;
 }
 
 inline bool Window::isInternal() const
 {
     return false;
 }
 
 inline bool Window::shape() const
 {
     return is_shape;
 }
 
 inline int Window::depth() const
 {
     return bit_depth;
 }
 
 inline bool Window::hasAlpha() const
 {
     return depth() == 32;
 }
 
 inline const QRegion &Window::opaqueRegion() const
 {
     return opaque_region;
 }
 
 inline EffectWindowImpl *Window::effectWindow()
 {
     return m_effectWindow.get();
 }
 
 inline const EffectWindowImpl *Window::effectWindow() const
 {
     return m_effectWindow.get();
 }
 
 inline WindowItem *Window::windowItem() const
 {
     return m_windowItem.get();
 }
 
 inline bool Window::isOnAllDesktops() const
 {
     return desktops().isEmpty();
 }
 
 inline bool Window::isOnAllActivities() const
 {
     return activities().isEmpty();
 }
 
 inline bool Window::isOnActivity(const QString &activity) const
 {
     return activities().isEmpty() || activities().contains(activity);
 }
 
 inline QString Window::resourceName() const
 {
     return resource_name; // it is always lowercase
 }
 
 inline QString Window::resourceClass() const
 {
     return resource_class; // it is always lowercase
 }
 
 inline const ClientMachine *Window::clientMachine() const
 {
     return m_clientMachine;
 }
 
 inline quint64 Window::surfaceSerial() const
 {
     return m_surfaceSerial;
 }
 
 inline quint32 Window::pendingSurfaceId() const
 {
     return m_pendingSurfaceId;
 }
 
 inline const std::shared_ptr<QOpenGLFramebufferObject> &Window::internalFramebufferObject() const
 {
     return m_internalFBO;
 }
 
 inline QImage Window::internalImageObject() const
 {
     return m_internalImage;
 }
 
 template<class T, class U>
 inline T *Window::findInList(const QList<T *> &list, std::function<bool(const U *)> func)
 {
     static_assert(std::is_base_of<U, T>::value,
                   "U must be derived from T");
     const auto it = std::find_if(list.begin(), list.end(), func);
     if (it == list.end()) {
         return nullptr;
     }
     return *it;
 }
 
 inline bool Window::isPopupWindow() const
 {
     switch (windowType()) {
     case NET::ComboBox:
     case NET::DropdownMenu:
     case NET::PopupMenu:
     case NET::Tooltip:
         return true;
 
     default:
         return false;
     }
 }
 
 inline const QList<Window *> &Window::transients() const
 {
     return m_transients;
 }
 
 inline bool Window::areGeometryUpdatesBlocked() const
 {
     return m_blockGeometryUpdates != 0;
 }
 
 inline void Window::blockGeometryUpdates()
 {
     m_blockGeometryUpdates++;
 }
 
 inline void Window::unblockGeometryUpdates()
 {
     m_blockGeometryUpdates--;
 }
 
 inline Window::MoveResizeMode Window::pendingMoveResizeMode() const
 {
     return m_pendingMoveResizeMode;
 }
 
 inline void Window::setPendingMoveResizeMode(MoveResizeMode mode)
 {
     m_pendingMoveResizeMode = MoveResizeMode(uint(m_pendingMoveResizeMode) | uint(mode));
 }
 
 KWIN_EXPORT QDebug operator<<(QDebug debug, const Window *window);
 
 class KWIN_EXPORT WindowOffscreenRenderRef
 {
 public:
     WindowOffscreenRenderRef(Window *window);
     WindowOffscreenRenderRef() = default;
     ~WindowOffscreenRenderRef();
 
 private:
     QPointer<Window> m_window;
 };
 
 } // namespace KWin
 
 Q_DECLARE_METATYPE(KWin::Window *)
 Q_DECLARE_METATYPE(QList<KWin::Window *>)
 Q_DECLARE_OPERATORS_FOR_FLAGS(KWin::Window::SameApplicationChecks)