File indexing completed on 2024-05-19 16:35:33

 /*
     SPDX-FileCopyrightText: 2020 Vlad Zahorodnii <vlad.zahorodnii@kde.org>
 
     SPDX-License-Identifier: LGPL-2.1-only OR LGPL-3.0-only OR LicenseRef-KDE-Accepted-LGPL
 */
 
 #pragma once
 
 #include "kwin_export.h"
 
 #include <QObject>
 #include <QSharedDataPointer>
 #include <memory>
 
 struct wl_resource;
 
 namespace KWaylandServer
 {
 class Display;
 class OutputInterface;
 class SeatInterface;
 class SurfaceInterface;
 class XdgShellInterfacePrivate;
 class XdgSurfaceInterfacePrivate;
 class XdgToplevelInterfacePrivate;
 class XdgPopupInterfacePrivate;
 class XdgPositionerData;
 class XdgToplevelInterface;
 class XdgPopupInterface;
 class XdgSurfaceInterface;
 
 /**
  * The XdgShellInterface class represents an extension for destrop-style user interfaces.
  *
  * The XdgShellInterface class provides a way for a client to extend a regular Wayland surface
  * with functionality required to construct user interface elements, e.g. toplevel windows or
  * menus.
  *
  * XdgShellInterface corresponds to the WaylandInterface \c xdg_wm_base.
  */
 class KWIN_EXPORT XdgShellInterface : public QObject
 {
     Q_OBJECT
 
 public:
     /**
      * Constructs an XdgShellInterface object with the given wayland display \a display.
      */
     XdgShellInterface(Display *display, QObject *parent = nullptr);
     /**
      * Destructs the XdgShellInterface object.
      */
     ~XdgShellInterface() override;
 
     /**
      * Returns the wayland display of the XdgShellInterface.
      */
     Display *display() const;
 
     /**
      * Sends a ping event to the client with the given xdg-surface \a surface. If the client
      * replies to the event within a reasonable amount of time, pongReceived signal will be
      * emitted.
      */
     quint32 ping(XdgSurfaceInterface *surface);
 
 Q_SIGNALS:
     /**
      * This signal is emitted when a new XdgToplevelInterface object is created.
      */
     void toplevelCreated(XdgToplevelInterface *toplevel);
 
     /**
      * This signal is emitted when a new XdgPopupInterface object is created.
      */
     void popupCreated(XdgPopupInterface *popup);
 
     /**
      * This signal is emitted when the client has responded to a ping event with serial \a serial.
      */
     void pongReceived(quint32 serial);
 
     /**
      * @todo Drop this signal.
      *
      * This signal is emitted when the client has not responded to a ping event with serial
      * \a serial within a reasonable amount of time and the compositor gave up on it.
      */
     void pingTimeout(quint32 serial);
 
     /**
      * This signal is emitted when the client has not responded to a ping event with serial
      * \a serial within a reasonable amount of time.
      */
     void pingDelayed(quint32 serial);
 
 private:
     std::unique_ptr<XdgShellInterfacePrivate> d;
     friend class XdgShellInterfacePrivate;
 };
 
 /**
  * The XdgSurfaceInterface class provides a base set of functionality required to construct
  * user interface elements.
  *
  * XdgSurfaceInterface corresponds to the Wayland interface \c xdg_surface.
  */
 class KWIN_EXPORT XdgSurfaceInterface : public QObject
 {
     Q_OBJECT
 
 public:
     /**
      * Constructs an XdgSurfaceInterface for the given \a shell and \a surface.
      */
     XdgSurfaceInterface(XdgShellInterface *shell, SurfaceInterface *surface, ::wl_resource *resource);
     /**
      * Destructs the XdgSurfaceInterface object.
      */
     ~XdgSurfaceInterface() override;
 
     /**
      * Returns the XdgToplevelInterface associated with this XdgSurfaceInterface.
      *
      * This method will return \c null if no xdg_toplevel object is associated with this surface.
      */
     XdgToplevelInterface *toplevel() const;
 
     /**
      * Returns the XdgPopupInterface associated with this XdgSurfaceInterface.
      *
      * This method will return \c null if no xdg_popup object is associated with this surface.
      */
     XdgPopupInterface *popup() const;
 
     /**
      * Returns the XdgShellInterface associated with this XdgSurfaceInterface.
      */
     XdgShellInterface *shell() const;
 
     /**
      * Returns the SurfaceInterface assigned to this XdgSurfaceInterface.
      */
     SurfaceInterface *surface() const;
 
     /**
      * Returns \c true if the surface has been configured; otherwise returns \c false.
      */
     bool isConfigured() const;
 
     /**
      * Returns the window geometry of the XdgSurfaceInterface.
      *
      * This method will return an invalid QRect if the window geometry is not set by the client.
      */
     QRect windowGeometry() const;
 
     /**
      * Returns the XdgSurfaceInterface for the specified wayland resource object \a resource.
      */
     static XdgSurfaceInterface *get(::wl_resource *resource);
 
 Q_SIGNALS:
     /**
      * This signal is emitted when the xdg-surface is about to be destroyed.
      */
     void aboutToBeDestroyed();
 
     /**
      * This signal is emitted when a configure event with serial \a serial has been acknowledged.
      */
     void configureAcknowledged(quint32 serial);
 
     /**
      * This signal is emitted when the window geometry has been changed.
      */
     void windowGeometryChanged(const QRect &rect);
 
     /**
      * This signal is emitted when the surface has been unmapped and its state has been reset.
      */
     void resetOccurred();
 
 private:
     std::unique_ptr<XdgSurfaceInterfacePrivate> d;
     friend class XdgSurfaceInterfacePrivate;
 };
 
 /**
  * The XdgToplevelInterface class represents a surface with window-like functionality such
  * as maximize, fullscreen, resizing, minimizing, etc.
  *
  * XdgToplevelInterface corresponds to the Wayland interface \c xdg_toplevel.
  */
 class KWIN_EXPORT XdgToplevelInterface : public QObject
 {
     Q_OBJECT
 
 public:
     enum State {
         MaximizedHorizontal = 0x1,
         MaximizedVertical = 0x2,
         FullScreen = 0x4,
         Resizing = 0x8,
         Activated = 0x10,
         TiledLeft = 0x20,
         TiledTop = 0x40,
         TiledRight = 0x80,
         TiledBottom = 0x100,
         Maximized = MaximizedHorizontal | MaximizedVertical,
     };
     Q_DECLARE_FLAGS(States, State)
 
     enum class ResizeAnchor {
         None = 0,
         Top = 1,
         Bottom = 2,
         Left = 4,
         TopLeft = 5,
         BottomLeft = 6,
         Right = 8,
         TopRight = 9,
         BottomRight = 10,
     };
     Q_ENUM(ResizeAnchor)
 
     /**
      * Constructs an XdgToplevelInterface for the given xdg-surface \a surface.
      */
     XdgToplevelInterface(XdgSurfaceInterface *surface, ::wl_resource *resource);
     /**
      * Destructs the XdgToplevelInterface object.
      */
     ~XdgToplevelInterface() override;
 
     /**
      * Returns the XdgShellInterface for this XdgToplevelInterface.
      *
      * This is equivalent to xdgSurface()->shell().
      */
     XdgShellInterface *shell() const;
 
     /**
      * Returns the XdgSurfaceInterface associated with the XdgToplevelInterface.
      */
     XdgSurfaceInterface *xdgSurface() const;
 
     /**
      * Returns the SurfaceInterface associated with the XdgToplevelInterface.
      */
     SurfaceInterface *surface() const;
 
     /**
      * Returns the parent XdgToplevelInterface above which this toplevel is stacked.
      */
     XdgToplevelInterface *parentXdgToplevel() const;
 
     /**
      * Returns \c true if the toplevel has been configured; otherwise returns \c false.
      */
     bool isConfigured() const;
 
     /**
      * Returns the window title of the toplevel surface.
      */
     QString windowTitle() const;
 
     /**
      * Returns the window class of the toplevel surface.
      */
     QString windowClass() const;
 
     /**
      * Returns the minimum window geometry size of the toplevel surface.
      */
     QSize minimumSize() const;
 
     /**
      * Returns the maximum window geometry size of the toplevel surface.
      */
     QSize maximumSize() const;
 
     /**
      * Sends a configure event to the client. \a size specifies the new window geometry size. A size
      * of zero means the client should decide its own window dimensions.
      */
     quint32 sendConfigure(const QSize &size, const States &states);
 
     /**
      * Sends a close event to the client. The client may choose to ignore this request.
      */
     void sendClose();
 
     /**
      * Sends an event to the client specifying the maximum bounds for the surface size. Must be
      * called before sendConfigure().
      */
     void sendConfigureBounds(const QSize &size);
 
     /**
      * Returns the XdgToplevelInterface for the specified wayland resource object \a resource.
      */
     static XdgToplevelInterface *get(::wl_resource *resource);
 
 Q_SIGNALS:
     /**
      * This signal is emitted when the xdg-toplevel is about to be destroyed.
      */
     void aboutToBeDestroyed();
 
     /**
      * This signal is emitted when the xdg-toplevel has commited the initial state and wants to
      * be configured. After initializing the toplevel, you must send a configure event.
      */
     void initializeRequested();
 
     /**
      * This signal is emitted when the toplevel has been unmapped and its state has been reset.
      */
     void resetOccurred();
 
     /**
      * This signal is emitted when the toplevel's title has been changed.
      */
     void windowTitleChanged(const QString &windowTitle);
 
     /**
      * This signal is emitted when the toplevel's application id has been changed.
      */
     void windowClassChanged(const QString &windowClass);
 
     /**
      * This signal is emitted when the toplevel has requested the window menu to be shown at
      * \a pos. The \a seat and the \a serial indicate the user action that triggerred the request.
      */
     void windowMenuRequested(KWaylandServer::SeatInterface *seat, const QPoint &pos, quint32 serial);
 
     /**
      * This signal is emitted when the toplevel's minimum size has been changed.
      */
     void minimumSizeChanged(const QSize &size);
 
     /**
      * This signal is emitted when the toplevel's maximum size has been changed.
      */
     void maximumSizeChanged(const QSize &size);
 
     /**
      * This signal is emitted when the toplevel wants to be interactively moved. The \a seat and
      * the \a serial indicate the user action in response to which this request has been issued.
      */
     void moveRequested(KWaylandServer::SeatInterface *seat, quint32 serial);
 
     /**
      * This signal is emitted when the toplevel wants to be interactively resized by dragging
      * the specified \a anchor. The \a seat and the \a serial indicate the user action
      * in response to which this request has been issued.
      */
     void resizeRequested(KWaylandServer::SeatInterface *seat, KWaylandServer::XdgToplevelInterface::ResizeAnchor anchor, quint32 serial);
 
     /**
      * This signal is emitted when the toplevel surface wants to become maximized.
      */
     void maximizeRequested();
 
     /**
      * This signal is emitted when the toplevel surface wants to become unmaximized.
      */
     void unmaximizeRequested();
 
     /**
      * This signal is emitted when the toplevel wants to be shown in the full screen mode.
      */
     void fullscreenRequested(KWaylandServer::OutputInterface *output);
 
     /**
      * This signal is emitted when the toplevel surface wants to leave the full screen mode.
      */
     void unfullscreenRequested();
 
     /**
      * This signal is emitted when the toplevel wants to be iconified.
      */
     void minimizeRequested();
 
     /**
      * This signal is emitted when the parent toplevel has changed.
      */
     void parentXdgToplevelChanged();
 
 private:
     std::unique_ptr<XdgToplevelInterfacePrivate> d;
     friend class XdgToplevelInterfacePrivate;
 };
 
 /**
  * The XdgPositioner class provides a collection of rules for the placement of a popup surface.
  *
  * XdgPositioner corresponds to the Wayland interface \c xdg_positioner.
  */
 class KWIN_EXPORT XdgPositioner
 {
 public:
     /**
      * Constructs an incomplete XdgPositioner object.
      */
     XdgPositioner();
     /**
      * Constructs a copy of the XdgPositioner object.
      */
     XdgPositioner(const XdgPositioner &other);
     /**
      * Destructs the XdgPositioner object.
      */
     ~XdgPositioner();
 
     /**
      * Assigns the value of \a other to this XdgPositioner object.
      */
     XdgPositioner &operator=(const XdgPositioner &other);
 
     /**
      * Returns \c true if the positioner object is complete; otherwise returns \c false.
      *
      * An xdg positioner considered complete if it has a valid size and a valid anchor rect.
      */
     bool isComplete() const;
 
     /**
      * Returns the set of orientations along which the compositor may slide the popup to ensure
      * that it is entirely inside the compositor's defined "work area."
      */
     Qt::Orientations slideConstraintAdjustments() const;
 
     /**
      * Returns the set of orientations along which the compositor may flip the popup to ensure
      * that it is entirely inside the compositor's defined "work area."
      */
     Qt::Orientations flipConstraintAdjustments() const;
 
     /**
      * Returns the set of orientations along which the compositor can resize the popup to ensure
      * that it is entirely inside the compositor's defined "work area."
      */
     Qt::Orientations resizeConstraintAdjustments() const;
 
     /**
      * Returns the set of edges on the anchor rectangle that the surface should be positioned
      * around.
      */
     Qt::Edges anchorEdges() const;
 
     /**
      * Returns the direction in which the surface should be positioned, relative to the anchor
      * point of the parent surface.
      */
     Qt::Edges gravityEdges() const;
 
     /**
      * Returns the window geometry size of the surface that is to be positioned.
      */
     QSize size() const;
 
     /**
      * Returns the anchor rectangle relative to the upper left corner of the window geometry of
      * the parent surface that the popup should be positioned around.
      */
     QRect anchorRect() const;
 
     /**
      * Returns the surface position offset relative to the position of the anchor on the anchor
      * rectangle and the anchor on the surface.
      */
     QPoint offset() const;
 
     /**
      * Returns whether the surface should respond to movements in its parent window.
      */
     bool isReactive() const;
 
     /**
      * Returns the parent size to use when positioning the popup.
      */
     QSize parentSize() const;
 
     /**
      * Returns the serial of the configure event for the parent window.
      */
     quint32 parentConfigure() const;
 
     /**
      * Returns the current state of the xdg positioner object identified by \a resource.
      */
     static XdgPositioner get(::wl_resource *resource);
 
 private:
     XdgPositioner(const QSharedDataPointer<XdgPositionerData> &data);
     QSharedDataPointer<XdgPositionerData> d;
 };
 
 /**
  * The XdgPopupInterface class represents a surface that can be used to implement context menus,
  * popovers and other similar short-lived user interface elements.
  *
  * XdgPopupInterface corresponds to the Wayland interface \c xdg_popup.
  */
 class KWIN_EXPORT XdgPopupInterface : public QObject
 {
     Q_OBJECT
 
 public:
     XdgPopupInterface(XdgSurfaceInterface *surface, SurfaceInterface *parentSurface, const XdgPositioner &positioner, ::wl_resource *resource);
     /**
      * Destructs the XdgPopupInterface object.
      */
     ~XdgPopupInterface() override;
 
     XdgShellInterface *shell() const;
 
     /**
      * Returns the parent surface for this popup surface. If the initial state hasn't been
      * committed yet, this function may return \c null.
      */
     SurfaceInterface *parentSurface() const;
 
     /**
      * Returns the XdgSurfaceInterface associated with the XdgPopupInterface.
      */
     XdgSurfaceInterface *xdgSurface() const;
 
     /**
      * Returns the SurfaceInterface associated with the XdgPopupInterface.
      */
     SurfaceInterface *surface() const;
 
     /**
      * Returns the XdgPositioner assigned to this XdgPopupInterface.
      */
     XdgPositioner positioner() const;
 
     /**
      * Returns \c true if the popup has been configured; otherwise returns \c false.
      */
     bool isConfigured() const;
 
     /**
      * Sends a configure event to the client and returns the serial number of the event.
      */
     quint32 sendConfigure(const QRect &rect);
 
     /**
      * Sends a popup done event to the client.
      */
     void sendPopupDone();
 
     /**
      * Sends a popup repositioned event to the client.
      */
     void sendRepositioned(quint32 token);
 
     /**
      * Returns the XdgPopupInterface for the specified wayland resource object \a resource.
      */
     static XdgPopupInterface *get(::wl_resource *resource);
 
 Q_SIGNALS:
     /**
      * This signal is emitted when the xdg-popup is about to be destroyed.
      */
     void aboutToBeDestroyed();
 
     /**
      * This signal is emitted when the xdg-popup has commited the initial state and wants to
      * be configured. After initializing the popup, you must send a configure event.
      */
     void initializeRequested();
     void grabRequested(SeatInterface *seat, quint32 serial);
     void repositionRequested(quint32 token);
 
 private:
     std::unique_ptr<XdgPopupInterfacePrivate> d;
     friend class XdgPopupInterfacePrivate;
 };
 
 } // namespace KWaylandServer
 
 Q_DECLARE_OPERATORS_FOR_FLAGS(KWaylandServer::XdgToplevelInterface::States)
 Q_DECLARE_METATYPE(KWaylandServer::XdgToplevelInterface::State)
 Q_DECLARE_METATYPE(KWaylandServer::XdgToplevelInterface::States)