text: /* Generated by wayland-scanner 1.19.0 */
  
  #ifndef XDG_SHELL_CLIENT_PROTOCOL_H
  #define XDG_SHELL_CLIENT_PROTOCOL_H
  
  #include <stdint.h>
  #include <stddef.h>
  #include "wayland-client.h"
  
  #ifdef  __cplusplus
  extern "C" {
  #endif
  
  /**
   * @page page_xdg_shell The xdg_shell protocol
   * @section page_ifaces_xdg_shell Interfaces
   * - @subpage page_iface_xdg_wm_base - create desktop-style surfaces
   * - @subpage page_iface_xdg_positioner - child surface positioner
   * - @subpage page_iface_xdg_surface - desktop user interface surface base interface
   * - @subpage page_iface_xdg_toplevel - toplevel surface
   * - @subpage page_iface_xdg_popup - short-lived, popup surfaces for menus
   * @section page_copyright_xdg_shell Copyright
   * <pre>
   *
   * Copyright © 2008-2013 Kristian Høgsberg
   * Copyright © 2013      Rafael Antognolli
   * Copyright © 2013      Jasper St. Pierre
   * Copyright © 2010-2013 Intel Corporation
   * Copyright © 2015-2017 Samsung Electronics Co., Ltd
   * Copyright © 2015-2017 Red Hat Inc.
   *
   * Permission is hereby granted, free of charge, to any person obtaining a
   * copy of this software and associated documentation files (the "Software"),
   * to deal in the Software without restriction, including without limitation
   * the rights to use, copy, modify, merge, publish, distribute, sublicense,
   * and/or sell copies of the Software, and to permit persons to whom the
   * Software is furnished to do so, subject to the following conditions:
   *
   * The above copyright notice and this permission notice (including the next
   * paragraph) shall be included in all copies or substantial portions of the
   * Software.
   *
   * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
   * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
   * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
   * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
   * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
   * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
   * DEALINGS IN THE SOFTWARE.
   * </pre>
   */
  struct wl_output;
  struct wl_seat;
  struct wl_surface;
  struct xdg_popup;
  struct xdg_positioner;
  struct xdg_surface;
  struct xdg_toplevel;
  struct xdg_wm_base;
  
  #ifndef XDG_WM_BASE_INTERFACE
  #define XDG_WM_BASE_INTERFACE
  /**
   * @page page_iface_xdg_wm_base xdg_wm_base
   * @section page_iface_xdg_wm_base_desc Description
   *
   * The xdg_wm_base interface is exposed as a global object enabling clients
   * to turn their wl_surfaces into windows in a desktop environment. It
   * defines the basic functionality needed for clients and the compositor to
   * create windows that can be dragged, resized, maximized, etc, as well as
   * creating transient windows such as popup menus.
   * @section page_iface_xdg_wm_base_api API
   * See @ref iface_xdg_wm_base.
   */
  /**
   * @defgroup iface_xdg_wm_base The xdg_wm_base interface
   *
   * The xdg_wm_base interface is exposed as a global object enabling clients
   * to turn their wl_surfaces into windows in a desktop environment. It
   * defines the basic functionality needed for clients and the compositor to
   * create windows that can be dragged, resized, maximized, etc, as well as
   * creating transient windows such as popup menus.
   */
  extern const struct wl_interface xdg_wm_base_interface;
  #endif
  #ifndef XDG_POSITIONER_INTERFACE
  #define XDG_POSITIONER_INTERFACE
  /**
   * @page page_iface_xdg_positioner xdg_positioner
   * @section page_iface_xdg_positioner_desc Description
   *
   * The xdg_positioner provides a collection of rules for the placement of a
   * child surface relative to a parent surface. Rules can be defined to ensure
   * the child surface remains within the visible area's borders, and to
   * specify how the child surface changes its position, such as sliding along
   * an axis, or flipping around a rectangle. These positioner-created rules are
   * constrained by the requirement that a child surface must intersect with or
   * be at least partially adjacent to its parent surface.
   *
   * See the various requests for details about possible rules.
   *
   * At the time of the request, the compositor makes a copy of the rules
   * specified by the xdg_positioner. Thus, after the request is complete the
   * xdg_positioner object can be destroyed or reused; further changes to the
   * object will have no effect on previous usages.
   *
   * For an xdg_positioner object to be considered complete, it must have a
   * non-zero size set by set_size, and a non-zero anchor rectangle set by
   * set_anchor_rect. Passing an incomplete xdg_positioner object when
   * positioning a surface raises an error.
   * @section page_iface_xdg_positioner_api API
   * See @ref iface_xdg_positioner.
   */
  /**
   * @defgroup iface_xdg_positioner The xdg_positioner interface
   *
   * The xdg_positioner provides a collection of rules for the placement of a
   * child surface relative to a parent surface. Rules can be defined to ensure
   * the child surface remains within the visible area's borders, and to
   * specify how the child surface changes its position, such as sliding along
   * an axis, or flipping around a rectangle. These positioner-created rules are
   * constrained by the requirement that a child surface must intersect with or
   * be at least partially adjacent to its parent surface.
   *
   * See the various requests for details about possible rules.
   *
   * At the time of the request, the compositor makes a copy of the rules
   * specified by the xdg_positioner. Thus, after the request is complete the
   * xdg_positioner object can be destroyed or reused; further changes to the
   * object will have no effect on previous usages.
   *
   * For an xdg_positioner object to be considered complete, it must have a
   * non-zero size set by set_size, and a non-zero anchor rectangle set by
   * set_anchor_rect. Passing an incomplete xdg_positioner object when
   * positioning a surface raises an error.
   */
  extern const struct wl_interface xdg_positioner_interface;
  #endif
  #ifndef XDG_SURFACE_INTERFACE
  #define XDG_SURFACE_INTERFACE
  /**
   * @page page_iface_xdg_surface xdg_surface
   * @section page_iface_xdg_surface_desc Description
   *
   * An interface that may be implemented by a wl_surface, for
   * implementations that provide a desktop-style user interface.
   *
   * It provides a base set of functionality required to construct user
   * interface elements requiring management by the compositor, such as
   * toplevel windows, menus, etc. The types of functionality are split into
   * xdg_surface roles.
   *
   * Creating an xdg_surface does not set the role for a wl_surface. In order
   * to map an xdg_surface, the client must create a role-specific object
   * using, e.g., get_toplevel, get_popup. The wl_surface for any given
   * xdg_surface can have at most one role, and may not be assigned any role
   * not based on xdg_surface.
   *
   * A role must be assigned before any other requests are made to the
   * xdg_surface object.
   *
   * The client must call wl_surface.commit on the corresponding wl_surface
   * for the xdg_surface state to take effect.
   *
   * Creating an xdg_surface from a wl_surface which has a buffer attached or
   * committed is a client error, and any attempts by a client to attach or
   * manipulate a buffer prior to the first xdg_surface.configure call must
   * also be treated as errors.
   *
   * After creating a role-specific object and setting it up, the client must
   * perform an initial commit without any buffer attached. The compositor
   * will reply with an xdg_surface.configure event. The client must
   * acknowledge it and is then allowed to attach a buffer to map the surface.
   *
   * Mapping an xdg_surface-based role surface is defined as making it
   * possible for the surface to be shown by the compositor. Note that
   * a mapped surface is not guaranteed to be visible once it is mapped.
   *
   * For an xdg_surface to be mapped by the compositor, the following
   * conditions must be met:
   * (1) the client has assigned an xdg_surface-based role to the surface
   * (2) the client has set and committed the xdg_surface state and the
   * role-dependent state to the surface
   * (3) the client has committed a buffer to the surface
   *
   * A newly-unmapped surface is considered to have met condition (1) out
   * of the 3 required conditions for mapping a surface if its role surface
   * has not been destroyed.
   * @section page_iface_xdg_surface_api API
   * See @ref iface_xdg_surface.
   */
  /**
   * @defgroup iface_xdg_surface The xdg_surface interface
   *
   * An interface that may be implemented by a wl_surface, for
   * implementations that provide a desktop-style user interface.
   *
   * It provides a base set of functionality required to construct user
   * interface elements requiring management by the compositor, such as
   * toplevel windows, menus, etc. The types of functionality are split into
   * xdg_surface roles.
   *
   * Creating an xdg_surface does not set the role for a wl_surface. In order
   * to map an xdg_surface, the client must create a role-specific object
   * using, e.g., get_toplevel, get_popup. The wl_surface for any given
   * xdg_surface can have at most one role, and may not be assigned any role
   * not based on xdg_surface.
   *
   * A role must be assigned before any other requests are made to the
   * xdg_surface object.
   *
   * The client must call wl_surface.commit on the corresponding wl_surface
   * for the xdg_surface state to take effect.
   *
   * Creating an xdg_surface from a wl_surface which has a buffer attached or
   * committed is a client error, and any attempts by a client to attach or
   * manipulate a buffer prior to the first xdg_surface.configure call must
   * also be treated as errors.
   *
   * After creating a role-specific object and setting it up, the client must
   * perform an initial commit without any buffer attached. The compositor
   * will reply with an xdg_surface.configure event. The client must
   * acknowledge it and is then allowed to attach a buffer to map the surface.
   *
   * Mapping an xdg_surface-based role surface is defined as making it
   * possible for the surface to be shown by the compositor. Note that
   * a mapped surface is not guaranteed to be visible once it is mapped.
   *
   * For an xdg_surface to be mapped by the compositor, the following
   * conditions must be met:
   * (1) the client has assigned an xdg_surface-based role to the surface
   * (2) the client has set and committed the xdg_surface state and the
   * role-dependent state to the surface
   * (3) the client has committed a buffer to the surface
   *
   * A newly-unmapped surface is considered to have met condition (1) out
   * of the 3 required conditions for mapping a surface if its role surface
   * has not been destroyed.
   */
  extern const struct wl_interface xdg_surface_interface;
  #endif
  #ifndef XDG_TOPLEVEL_INTERFACE
  #define XDG_TOPLEVEL_INTERFACE
  /**
   * @page page_iface_xdg_toplevel xdg_toplevel
   * @section page_iface_xdg_toplevel_desc Description
   *
   * This interface defines an xdg_surface role which allows a surface to,
   * among other things, set window-like properties such as maximize,
   * fullscreen, and minimize, set application-specific metadata like title and
   * id, and well as trigger user interactive operations such as interactive
   * resize and move.
   *
   * Unmapping an xdg_toplevel means that the surface cannot be shown
   * by the compositor until it is explicitly mapped again.
   * All active operations (e.g., move, resize) are canceled and all
   * attributes (e.g. title, state, stacking, ...) are discarded for
   * an xdg_toplevel surface when it is unmapped. The xdg_toplevel returns to
   * the state it had right after xdg_surface.get_toplevel. The client
   * can re-map the toplevel by perfoming a commit without any buffer
   * attached, waiting for a configure event and handling it as usual (see
   * xdg_surface description).
   *
   * Attaching a null buffer to a toplevel unmaps the surface.
   * @section page_iface_xdg_toplevel_api API
   * See @ref iface_xdg_toplevel.
   */
  /**
   * @defgroup iface_xdg_toplevel The xdg_toplevel interface
   *
   * This interface defines an xdg_surface role which allows a surface to,
   * among other things, set window-like properties such as maximize,
   * fullscreen, and minimize, set application-specific metadata like title and
   * id, and well as trigger user interactive operations such as interactive
   * resize and move.
   *
   * Unmapping an xdg_toplevel means that the surface cannot be shown
   * by the compositor until it is explicitly mapped again.
   * All active operations (e.g., move, resize) are canceled and all
   * attributes (e.g. title, state, stacking, ...) are discarded for
   * an xdg_toplevel surface when it is unmapped. The xdg_toplevel returns to
   * the state it had right after xdg_surface.get_toplevel. The client
   * can re-map the toplevel by perfoming a commit without any buffer
   * attached, waiting for a configure event and handling it as usual (see
   * xdg_surface description).
   *
   * Attaching a null buffer to a toplevel unmaps the surface.
   */
  extern const struct wl_interface xdg_toplevel_interface;
  #endif
  #ifndef XDG_POPUP_INTERFACE
  #define XDG_POPUP_INTERFACE
  /**
   * @page page_iface_xdg_popup xdg_popup
   * @section page_iface_xdg_popup_desc Description
   *
   * A popup surface is a short-lived, temporary surface. It can be used to
   * implement for example menus, popovers, tooltips and other similar user
   * interface concepts.
   *
   * A popup can be made to take an explicit grab. See xdg_popup.grab for
   * details.
   *
   * When the popup is dismissed, a popup_done event will be sent out, and at
   * the same time the surface will be unmapped. See the xdg_popup.popup_done
   * event for details.
   *
   * Explicitly destroying the xdg_popup object will also dismiss the popup and
   * unmap the surface. Clients that want to dismiss the popup when another
   * surface of their own is clicked should dismiss the popup using the destroy
   * request.
   *
   * A newly created xdg_popup will be stacked on top of all previously created
   * xdg_popup surfaces associated with the same xdg_toplevel.
   *
   * The parent of an xdg_popup must be mapped (see the xdg_surface
   * description) before the xdg_popup itself.
   *
   * The client must call wl_surface.commit on the corresponding wl_surface
   * for the xdg_popup state to take effect.
   * @section page_iface_xdg_popup_api API
   * See @ref iface_xdg_popup.
   */
  /**
   * @defgroup iface_xdg_popup The xdg_popup interface
   *
   * A popup surface is a short-lived, temporary surface. It can be used to
   * implement for example menus, popovers, tooltips and other similar user
   * interface concepts.
   *
   * A popup can be made to take an explicit grab. See xdg_popup.grab for
   * details.
   *
   * When the popup is dismissed, a popup_done event will be sent out, and at
   * the same time the surface will be unmapped. See the xdg_popup.popup_done
   * event for details.
   *
   * Explicitly destroying the xdg_popup object will also dismiss the popup and
   * unmap the surface. Clients that want to dismiss the popup when another
   * surface of their own is clicked should dismiss the popup using the destroy
   * request.
   *
   * A newly created xdg_popup will be stacked on top of all previously created
   * xdg_popup surfaces associated with the same xdg_toplevel.
   *
   * The parent of an xdg_popup must be mapped (see the xdg_surface
   * description) before the xdg_popup itself.
   *
   * The client must call wl_surface.commit on the corresponding wl_surface
   * for the xdg_popup state to take effect.
   */
  extern const struct wl_interface xdg_popup_interface;
  #endif
  
  #ifndef XDG_WM_BASE_ERROR_ENUM
  #define XDG_WM_BASE_ERROR_ENUM
  enum xdg_wm_base_error {
  	/**
  	 * given wl_surface has another role
  	 */
  	XDG_WM_BASE_ERROR_ROLE = 0,
  	/**
  	 * xdg_wm_base was destroyed before children
  	 */
  	XDG_WM_BASE_ERROR_DEFUNCT_SURFACES = 1,
  	/**
  	 * the client tried to map or destroy a non-topmost popup
  	 */
  	XDG_WM_BASE_ERROR_NOT_THE_TOPMOST_POPUP = 2,
  	/**
  	 * the client specified an invalid popup parent surface
  	 */
  	XDG_WM_BASE_ERROR_INVALID_POPUP_PARENT = 3,
  	/**
  	 * the client provided an invalid surface state
  	 */
  	XDG_WM_BASE_ERROR_INVALID_SURFACE_STATE = 4,
  	/**
  	 * the client provided an invalid positioner
  	 */
  	XDG_WM_BASE_ERROR_INVALID_POSITIONER = 5,
  };
  #endif /* XDG_WM_BASE_ERROR_ENUM */
  
  /**
   * @ingroup iface_xdg_wm_base
   * @struct xdg_wm_base_listener
   */
  struct xdg_wm_base_listener {
  	/**
  	 * check if the client is alive
  	 *
  	 * The ping event asks the client if it's still alive. Pass the
  	 * serial specified in the event back to the compositor by sending
  	 * a "pong" request back with the specified serial. See
  	 * xdg_wm_base.pong.
  	 *
  	 * Compositors can use this to determine if the client is still
  	 * alive. It's unspecified what will happen if the client doesn't
  	 * respond to the ping request, or in what timeframe. Clients
  	 * should try to respond in a reasonable amount of time.
  	 *
  	 * A compositor is free to ping in any way it wants, but a client
  	 * must always respond to any xdg_wm_base object it created.
  	 * @param serial pass this to the pong request
  	 */
  	void (*ping)(void *data,
  		     struct xdg_wm_base *xdg_wm_base,
  		     uint32_t serial);
  };
  
  /**
   * @ingroup iface_xdg_wm_base
   */
  static inline int
  xdg_wm_base_add_listener(struct xdg_wm_base *xdg_wm_base,
  			 const struct xdg_wm_base_listener *listener, void *data)
  {
  	return wl_proxy_add_listener((struct wl_proxy *) xdg_wm_base,
  				     (void (**)(void)) listener, data);
  }
  
  #define XDG_WM_BASE_DESTROY 0
  #define XDG_WM_BASE_CREATE_POSITIONER 1
  #define XDG_WM_BASE_GET_XDG_SURFACE 2
  #define XDG_WM_BASE_PONG 3
  
  /**
   * @ingroup iface_xdg_wm_base
   */
  #define XDG_WM_BASE_PING_SINCE_VERSION 1
  
  /**
   * @ingroup iface_xdg_wm_base
   */
  #define XDG_WM_BASE_DESTROY_SINCE_VERSION 1
  /**
   * @ingroup iface_xdg_wm_base
   */
  #define XDG_WM_BASE_CREATE_POSITIONER_SINCE_VERSION 1
  /**
   * @ingroup iface_xdg_wm_base
   */
  #define XDG_WM_BASE_GET_XDG_SURFACE_SINCE_VERSION 1
  /**
   * @ingroup iface_xdg_wm_base
   */
  #define XDG_WM_BASE_PONG_SINCE_VERSION 1
  
  /** @ingroup iface_xdg_wm_base */
  static inline void
  xdg_wm_base_set_user_data(struct xdg_wm_base *xdg_wm_base, void *user_data)
  {
  	wl_proxy_set_user_data((struct wl_proxy *) xdg_wm_base, user_data);
  }
  
  /** @ingroup iface_xdg_wm_base */
  static inline void *
  xdg_wm_base_get_user_data(struct xdg_wm_base *xdg_wm_base)
  {
  	return wl_proxy_get_user_data((struct wl_proxy *) xdg_wm_base);
  }
  
  static inline uint32_t
  xdg_wm_base_get_version(struct xdg_wm_base *xdg_wm_base)
  {
  	return wl_proxy_get_version((struct wl_proxy *) xdg_wm_base);
  }
  
  /**
   * @ingroup iface_xdg_wm_base
   *
   * Destroy this xdg_wm_base object.
   *
   * Destroying a bound xdg_wm_base object while there are surfaces
   * still alive created by this xdg_wm_base object instance is illegal
   * and will result in a protocol error.
   */
  static inline void
  xdg_wm_base_destroy(struct xdg_wm_base *xdg_wm_base)
  {
  	wl_proxy_marshal((struct wl_proxy *) xdg_wm_base,
  			 XDG_WM_BASE_DESTROY);
  
  	wl_proxy_destroy((struct wl_proxy *) xdg_wm_base);
  }
  
  /**
   * @ingroup iface_xdg_wm_base
   *
   * Create a positioner object. A positioner object is used to position
   * surfaces relative to some parent surface. See the interface description
   * and xdg_surface.get_popup for details.
   */
  static inline struct xdg_positioner *
  xdg_wm_base_create_positioner(struct xdg_wm_base *xdg_wm_base)
  {
  	struct wl_proxy *id;
  
  	id = wl_proxy_marshal_constructor((struct wl_proxy *) xdg_wm_base,
  			 XDG_WM_BASE_CREATE_POSITIONER, &xdg_positioner_interface, NULL);
  
  	return (struct xdg_positioner *) id;
  }
  
  /**
   * @ingroup iface_xdg_wm_base
   *
   * This creates an xdg_surface for the given surface. While xdg_surface
   * itself is not a role, the corresponding surface may only be assigned
   * a role extending xdg_surface, such as xdg_toplevel or xdg_popup. It is
   * illegal to create an xdg_surface for a wl_surface which already has an
   * assigned role and this will result in a protocol error.
   *
   * This creates an xdg_surface for the given surface. An xdg_surface is
   * used as basis to define a role to a given surface, such as xdg_toplevel
   * or xdg_popup. It also manages functionality shared between xdg_surface
   * based surface roles.
   *
   * See the documentation of xdg_surface for more details about what an
   * xdg_surface is and how it is used.
   */
  static inline struct xdg_surface *
  xdg_wm_base_get_xdg_surface(struct xdg_wm_base *xdg_wm_base, struct wl_surface *surface)
  {
  	struct wl_proxy *id;
  
  	id = wl_proxy_marshal_constructor((struct wl_proxy *) xdg_wm_base,
  			 XDG_WM_BASE_GET_XDG_SURFACE, &xdg_surface_interface, NULL, surface);
  
  	return (struct xdg_surface *) id;
  }
  
  /**
   * @ingroup iface_xdg_wm_base
   *
   * A client must respond to a ping event with a pong request or
   * the client may be deemed unresponsive. See xdg_wm_base.ping.
   */
  static inline void
  xdg_wm_base_pong(struct xdg_wm_base *xdg_wm_base, uint32_t serial)
  {
  	wl_proxy_marshal((struct wl_proxy *) xdg_wm_base,
  			 XDG_WM_BASE_PONG, serial);
  }
  
  #ifndef XDG_POSITIONER_ERROR_ENUM
  #define XDG_POSITIONER_ERROR_ENUM
  enum xdg_positioner_error {
  	/**
  	 * invalid input provided
  	 */
  	XDG_POSITIONER_ERROR_INVALID_INPUT = 0,
  };
  #endif /* XDG_POSITIONER_ERROR_ENUM */
  
  #ifndef XDG_POSITIONER_ANCHOR_ENUM
  #define XDG_POSITIONER_ANCHOR_ENUM
  enum xdg_positioner_anchor {
  	XDG_POSITIONER_ANCHOR_NONE = 0,
  	XDG_POSITIONER_ANCHOR_TOP = 1,
  	XDG_POSITIONER_ANCHOR_BOTTOM = 2,
  	XDG_POSITIONER_ANCHOR_LEFT = 3,
  	XDG_POSITIONER_ANCHOR_RIGHT = 4,
  	XDG_POSITIONER_ANCHOR_TOP_LEFT = 5,
  	XDG_POSITIONER_ANCHOR_BOTTOM_LEFT = 6,
  	XDG_POSITIONER_ANCHOR_TOP_RIGHT = 7,
  	XDG_POSITIONER_ANCHOR_BOTTOM_RIGHT = 8,
  };
  #endif /* XDG_POSITIONER_ANCHOR_ENUM */
  
  #ifndef XDG_POSITIONER_GRAVITY_ENUM
  #define XDG_POSITIONER_GRAVITY_ENUM
  enum xdg_positioner_gravity {
  	XDG_POSITIONER_GRAVITY_NONE = 0,
  	XDG_POSITIONER_GRAVITY_TOP = 1,
  	XDG_POSITIONER_GRAVITY_BOTTOM = 2,
  	XDG_POSITIONER_GRAVITY_LEFT = 3,
  	XDG_POSITIONER_GRAVITY_RIGHT = 4,
  	XDG_POSITIONER_GRAVITY_TOP_LEFT = 5,
  	XDG_POSITIONER_GRAVITY_BOTTOM_LEFT = 6,
  	XDG_POSITIONER_GRAVITY_TOP_RIGHT = 7,
  	XDG_POSITIONER_GRAVITY_BOTTOM_RIGHT = 8,
  };
  #endif /* XDG_POSITIONER_GRAVITY_ENUM */
  
  #ifndef XDG_POSITIONER_CONSTRAINT_ADJUSTMENT_ENUM
  #define XDG_POSITIONER_CONSTRAINT_ADJUSTMENT_ENUM
  /**
   * @ingroup iface_xdg_positioner
   * vertically resize the surface
   *
   * Resize the surface vertically so that it is completely unconstrained.
   */
  enum xdg_positioner_constraint_adjustment {
  	XDG_POSITIONER_CONSTRAINT_ADJUSTMENT_NONE = 0,
  	XDG_POSITIONER_CONSTRAINT_ADJUSTMENT_SLIDE_X = 1,
  	XDG_POSITIONER_CONSTRAINT_ADJUSTMENT_SLIDE_Y = 2,
  	XDG_POSITIONER_CONSTRAINT_ADJUSTMENT_FLIP_X = 4,
  	XDG_POSITIONER_CONSTRAINT_ADJUSTMENT_FLIP_Y = 8,
  	XDG_POSITIONER_CONSTRAINT_ADJUSTMENT_RESIZE_X = 16,
  	XDG_POSITIONER_CONSTRAINT_ADJUSTMENT_RESIZE_Y = 32,
  };
  #endif /* XDG_POSITIONER_CONSTRAINT_ADJUSTMENT_ENUM */
  
  #define XDG_POSITIONER_DESTROY 0
  #define XDG_POSITIONER_SET_SIZE 1
  #define XDG_POSITIONER_SET_ANCHOR_RECT 2
  #define XDG_POSITIONER_SET_ANCHOR 3
  #define XDG_POSITIONER_SET_GRAVITY 4
  #define XDG_POSITIONER_SET_CONSTRAINT_ADJUSTMENT 5
  #define XDG_POSITIONER_SET_OFFSET 6
  #define XDG_POSITIONER_SET_REACTIVE 7
  #define XDG_POSITIONER_SET_PARENT_SIZE 8
  #define XDG_POSITIONER_SET_PARENT_CONFIGURE 9
  
  
  /**
   * @ingroup iface_xdg_positioner
   */
  #define XDG_POSITIONER_DESTROY_SINCE_VERSION 1
  /**
   * @ingroup iface_xdg_positioner
   */
  #define XDG_POSITIONER_SET_SIZE_SINCE_VERSION 1
  /**
   * @ingroup iface_xdg_positioner
   */
  #define XDG_POSITIONER_SET_ANCHOR_RECT_SINCE_VERSION 1
  /**
   * @ingroup iface_xdg_positioner
   */
  #define XDG_POSITIONER_SET_ANCHOR_SINCE_VERSION 1
  /**
   * @ingroup iface_xdg_positioner
   */
  #define XDG_POSITIONER_SET_GRAVITY_SINCE_VERSION 1
  /**
   * @ingroup iface_xdg_positioner
   */
  #define XDG_POSITIONER_SET_CONSTRAINT_ADJUSTMENT_SINCE_VERSION 1
  /**
   * @ingroup iface_xdg_positioner
   */
  #define XDG_POSITIONER_SET_OFFSET_SINCE_VERSION 1
  /**
   * @ingroup iface_xdg_positioner
   */
  #define XDG_POSITIONER_SET_REACTIVE_SINCE_VERSION 3
  /**
   * @ingroup iface_xdg_positioner
   */
  #define XDG_POSITIONER_SET_PARENT_SIZE_SINCE_VERSION 3
  /**
   * @ingroup iface_xdg_positioner
   */
  #define XDG_POSITIONER_SET_PARENT_CONFIGURE_SINCE_VERSION 3
  
  /** @ingroup iface_xdg_positioner */
  static inline void
  xdg_positioner_set_user_data(struct xdg_positioner *xdg_positioner, void *user_data)
  {
  	wl_proxy_set_user_data((struct wl_proxy *) xdg_positioner, user_data);
  }
  
  /** @ingroup iface_xdg_positioner */
  static inline void *
  xdg_positioner_get_user_data(struct xdg_positioner *xdg_positioner)
  {
  	return wl_proxy_get_user_data((struct wl_proxy *) xdg_positioner);
  }
  
  static inline uint32_t
  xdg_positioner_get_version(struct xdg_positioner *xdg_positioner)
  {
  	return wl_proxy_get_version((struct wl_proxy *) xdg_positioner);
  }
  
  /**
   * @ingroup iface_xdg_positioner
   *
   * Notify the compositor that the xdg_positioner will no longer be used.
   */
  static inline void
  xdg_positioner_destroy(struct xdg_positioner *xdg_positioner)
  {
  	wl_proxy_marshal((struct wl_proxy *) xdg_positioner,
  			 XDG_POSITIONER_DESTROY);
  
  	wl_proxy_destroy((struct wl_proxy *) xdg_positioner);
  }
  
  /**
   * @ingroup iface_xdg_positioner
   *
   * Set the size of the surface that is to be positioned with the positioner
   * object. The size is in surface-local coordinates and corresponds to the
   * window geometry. See xdg_surface.set_window_geometry.
   *
   * If a zero or negative size is set the invalid_input error is raised.
   */
  static inline void
  xdg_positioner_set_size(struct xdg_positioner *xdg_positioner, int32_t width, int32_t height)
  {
  	wl_proxy_marshal((struct wl_proxy *) xdg_positioner,
  			 XDG_POSITIONER_SET_SIZE, width, height);
  }
  
  /**
   * @ingroup iface_xdg_positioner
   *
   * Specify the anchor rectangle within the parent surface that the child
   * surface will be placed relative to. The rectangle is relative to the
   * window geometry as defined by xdg_surface.set_window_geometry of the
   * parent surface.
   *
   * When the xdg_positioner object is used to position a child surface, the
   * anchor rectangle may not extend outside the window geometry of the
   * positioned child's parent surface.
   *
   * If a negative size is set the invalid_input error is raised.
   */
  static inline void
  xdg_positioner_set_anchor_rect(struct xdg_positioner *xdg_positioner, int32_t x, int32_t y, int32_t width, int32_t height)
  {
  	wl_proxy_marshal((struct wl_proxy *) xdg_positioner,
  			 XDG_POSITIONER_SET_ANCHOR_RECT, x, y, width, height);
  }
  
  /**
   * @ingroup iface_xdg_positioner
   *
   * Defines the anchor point for the anchor rectangle. The specified anchor
   * is used derive an anchor point that the child surface will be
   * positioned relative to. If a corner anchor is set (e.g. 'top_left' or
   * 'bottom_right'), the anchor point will be at the specified corner;
   * otherwise, the derived anchor point will be centered on the specified
   * edge, or in the center of the anchor rectangle if no edge is specified.
   */
  static inline void
  xdg_positioner_set_anchor(struct xdg_positioner *xdg_positioner, uint32_t anchor)
  {
  	wl_proxy_marshal((struct wl_proxy *) xdg_positioner,
  			 XDG_POSITIONER_SET_ANCHOR, anchor);
  }
  
  /**
   * @ingroup iface_xdg_positioner
   *
   * Defines in what direction a surface should be positioned, relative to
   * the anchor point of the parent surface. If a corner gravity is
   * specified (e.g. 'bottom_right' or 'top_left'), then the child surface
   * will be placed towards the specified gravity; otherwise, the child
   * surface will be centered over the anchor point on any axis that had no
   * gravity specified.
   */
  static inline void
  xdg_positioner_set_gravity(struct xdg_positioner *xdg_positioner, uint32_t gravity)
  {
  	wl_proxy_marshal((struct wl_proxy *) xdg_positioner,
  			 XDG_POSITIONER_SET_GRAVITY, gravity);
  }
  
  /**
   * @ingroup iface_xdg_positioner
   *
   * Specify how the window should be positioned if the originally intended
   * position caused the surface to be constrained, meaning at least
   * partially outside positioning boundaries set by the compositor. The
   * adjustment is set by constructing a bitmask describing the adjustment to
   * be made when the surface is constrained on that axis.
   *
   * If no bit for one axis is set, the compositor will assume that the child
   * surface should not change its position on that axis when constrained.
   *
   * If more than one bit for one axis is set, the order of how adjustments
   * are applied is specified in the corresponding adjustment descriptions.
   *
   * The default adjustment is none.
   */
  static inline void
  xdg_positioner_set_constraint_adjustment(struct xdg_positioner *xdg_positioner, uint32_t constraint_adjustment)
  {
  	wl_proxy_marshal((struct wl_proxy *) xdg_positioner,
  			 XDG_POSITIONER_SET_CONSTRAINT_ADJUSTMENT, constraint_adjustment);
  }
  
  /**
   * @ingroup iface_xdg_positioner
   *
   * Specify the surface position offset relative to the position of the
   * anchor on the anchor rectangle and the anchor on the surface. For
   * example if the anchor of the anchor rectangle is at (x, y), the surface
   * has the gravity bottom|right, and the offset is (ox, oy), the calculated
   * surface position will be (x + ox, y + oy). The offset position of the
   * surface is the one used for constraint testing. See
   * set_constraint_adjustment.
   *
   * An example use case is placing a popup menu on top of a user interface
   * element, while aligning the user interface element of the parent surface
   * with some user interface element placed somewhere in the popup surface.
   */
  static inline void
  xdg_positioner_set_offset(struct xdg_positioner *xdg_positioner, int32_t x, int32_t y)
  {
  	wl_proxy_marshal((struct wl_proxy *) xdg_positioner,
  			 XDG_POSITIONER_SET_OFFSET, x, y);
  }
  
  /**
   * @ingroup iface_xdg_positioner
   *
   * When set reactive, the surface is reconstrained if the conditions used
   * for constraining changed, e.g. the parent window moved.
   *
   * If the conditions changed and the popup was reconstrained, an
   * xdg_popup.configure event is sent with updated geometry, followed by an
   * xdg_surface.configure event.
   */
  static inline void
  xdg_positioner_set_reactive(struct xdg_positioner *xdg_positioner)
  {
  	wl_proxy_marshal((struct wl_proxy *) xdg_positioner,
  			 XDG_POSITIONER_SET_REACTIVE);
  }
  
  /**
   * @ingroup iface_xdg_positioner
   *
   * Set the parent window geometry the compositor should use when
   * positioning the popup. The compositor may use this information to
   * determine the future state the popup should be constrained using. If
   * this doesn't match the dimension of the parent the popup is eventually
   * positioned against, the behavior is undefined.
   *
   * The arguments are given in the surface-local coordinate space.
   */
  static inline void
  xdg_positioner_set_parent_size(struct xdg_positioner *xdg_positioner, int32_t parent_width, int32_t parent_height)
  {
  	wl_proxy_marshal((struct wl_proxy *) xdg_positioner,
  			 XDG_POSITIONER_SET_PARENT_SIZE, parent_width, parent_height);
  }
  
  /**
   * @ingroup iface_xdg_positioner
   *
   * Set the serial of an xdg_surface.configure event this positioner will be
   * used in response to. The compositor may use this information together
   * with set_parent_size to determine what future state the popup should be
   * constrained using.
   */
  static inline void
  xdg_positioner_set_parent_configure(struct xdg_positioner *xdg_positioner, uint32_t serial)
  {
  	wl_proxy_marshal((struct wl_proxy *) xdg_positioner,
  			 XDG_POSITIONER_SET_PARENT_CONFIGURE, serial);
  }
  
  #ifndef XDG_SURFACE_ERROR_ENUM
  #define XDG_SURFACE_ERROR_ENUM
  enum xdg_surface_error {
  	XDG_SURFACE_ERROR_NOT_CONSTRUCTED = 1,
  	XDG_SURFACE_ERROR_ALREADY_CONSTRUCTED = 2,
  	XDG_SURFACE_ERROR_UNCONFIGURED_BUFFER = 3,
  };
  #endif /* XDG_SURFACE_ERROR_ENUM */
  
  /**
   * @ingroup iface_xdg_surface
   * @struct xdg_surface_listener
   */
  struct xdg_surface_listener {
  	/**
  	 * suggest a surface change
  	 *
  	 * The configure event marks the end of a configure sequence. A
  	 * configure sequence is a set of one or more events configuring
  	 * the state of the xdg_surface, including the final
  	 * xdg_surface.configure event.
  	 *
  	 * Where applicable, xdg_surface surface roles will during a
  	 * configure sequence extend this event as a latched state sent as
  	 * events before the xdg_surface.configure event. Such events
  	 * should be considered to make up a set of atomically applied
  	 * configuration states, where the xdg_surface.configure commits
  	 * the accumulated state.
  	 *
  	 * Clients should arrange their surface for the new states, and
  	 * then send an ack_configure request with the serial sent in this
  	 * configure event at some point before committing the new surface.
  	 *
  	 * If the client receives multiple configure events before it can
  	 * respond to one, it is free to discard all but the last event it
  	 * received.
  	 * @param serial serial of the configure event
  	 */
  	void (*configure)(void *data,
  			  struct xdg_surface *xdg_surface,
  			  uint32_t serial);
  };
  
  /**
   * @ingroup iface_xdg_surface
   */
  static inline int
  xdg_surface_add_listener(struct xdg_surface *xdg_surface,
  			 const struct xdg_surface_listener *listener, void *data)
  {
  	return wl_proxy_add_listener((struct wl_proxy *) xdg_surface,
  				     (void (**)(void)) listener, data);
  }
  
  #define XDG_SURFACE_DESTROY 0
  #define XDG_SURFACE_GET_TOPLEVEL 1
  #define XDG_SURFACE_GET_POPUP 2
  #define XDG_SURFACE_SET_WINDOW_GEOMETRY 3
  #define XDG_SURFACE_ACK_CONFIGURE 4
  
  /**
   * @ingroup iface_xdg_surface
   */
  #define XDG_SURFACE_CONFIGURE_SINCE_VERSION 1
  
  /**
   * @ingroup iface_xdg_surface
   */
  #define XDG_SURFACE_DESTROY_SINCE_VERSION 1
  /**
   * @ingroup iface_xdg_surface
   */
  #define XDG_SURFACE_GET_TOPLEVEL_SINCE_VERSION 1
  /**
   * @ingroup iface_xdg_surface
   */
  #define XDG_SURFACE_GET_POPUP_SINCE_VERSION 1
  /**
   * @ingroup iface_xdg_surface
   */
  #define XDG_SURFACE_SET_WINDOW_GEOMETRY_SINCE_VERSION 1
  /**
   * @ingroup iface_xdg_surface
   */
  #define XDG_SURFACE_ACK_CONFIGURE_SINCE_VERSION 1
  
  /** @ingroup iface_xdg_surface */
  static inline void
  xdg_surface_set_user_data(struct xdg_surface *xdg_surface, void *user_data)
  {
  	wl_proxy_set_user_data((struct wl_proxy *) xdg_surface, user_data);
  }
  
  /** @ingroup iface_xdg_surface */
  static inline void *
  xdg_surface_get_user_data(struct xdg_surface *xdg_surface)
  {
  	return wl_proxy_get_user_data((struct wl_proxy *) xdg_surface);
  }
  
  static inline uint32_t
  xdg_surface_get_version(struct xdg_surface *xdg_surface)
  {
  	return wl_proxy_get_version((struct wl_proxy *) xdg_surface);
  }
  
  /**
   * @ingroup iface_xdg_surface
   *
   * Destroy the xdg_surface object. An xdg_surface must only be destroyed
   * after its role object has been destroyed.
   */
  static inline void
  xdg_surface_destroy(struct xdg_surface *xdg_surface)
  {
  	wl_proxy_marshal((struct wl_proxy *) xdg_surface,
  			 XDG_SURFACE_DESTROY);
  
  	wl_proxy_destroy((struct wl_proxy *) xdg_surface);
  }
  
  /**
   * @ingroup iface_xdg_surface
   *
   * This creates an xdg_toplevel object for the given xdg_surface and gives
   * the associated wl_surface the xdg_toplevel role.
   *
   * See the documentation of xdg_toplevel for more details about what an
   * xdg_toplevel is and how it is used.
   */
  static inline struct xdg_toplevel *
  xdg_surface_get_toplevel(struct xdg_surface *xdg_surface)
  {
  	struct wl_proxy *id;
  
  	id = wl_proxy_marshal_constructor((struct wl_proxy *) xdg_surface,
  			 XDG_SURFACE_GET_TOPLEVEL, &xdg_toplevel_interface, NULL);
  
  	return (struct xdg_toplevel *) id;
  }
  
  /**
   * @ingroup iface_xdg_surface
   *
   * This creates an xdg_popup object for the given xdg_surface and gives
   * the associated wl_surface the xdg_popup role.
   *
   * If null is passed as a parent, a parent surface must be specified using
   * some other protocol, before committing the initial state.
   *
   * See the documentation of xdg_popup for more details about what an
   * xdg_popup is and how it is used.
   */
  static inline struct xdg_popup *
  xdg_surface_get_popup(struct xdg_surface *xdg_surface, struct xdg_surface *parent, struct xdg_positioner *positioner)
  {
  	struct wl_proxy *id;
  
  	id = wl_proxy_marshal_constructor((struct wl_proxy *) xdg_surface,
  			 XDG_SURFACE_GET_POPUP, &xdg_popup_interface, NULL, parent, positioner);
  
  	return (struct xdg_popup *) id;
  }
  
  /**
   * @ingroup iface_xdg_surface
   *
   * The window geometry of a surface is its "visible bounds" from the
   * user's perspective. Client-side decorations often have invisible
   * portions like drop-shadows which should be ignored for the
   * purposes of aligning, placing and constraining windows.
   *
   * The window geometry is double buffered, and will be applied at the
   * time wl_surface.commit of the corresponding wl_surface is called.
   *
   * When maintaining a position, the compositor should treat the (x, y)
   * coordinate of the window geometry as the top left corner of the window.
   * A client changing the (x, y) window geometry coordinate should in
   * general not alter the position of the window.
   *
   * Once the window geometry of the surface is set, it is not possible to
   * unset it, and it will remain the same until set_window_geometry is
   * called again, even if a new subsurface or buffer is attached.
   *
   * If never set, the value is the full bounds of the surface,
   * including any subsurfaces. This updates dynamically on every
   * commit. This unset is meant for extremely simple clients.
   *
   * The arguments are given in the surface-local coordinate space of
   * the wl_surface associated with this xdg_surface.
   *
   * The width and height must be greater than zero. Setting an invalid size
   * will raise an error. When applied, the effective window geometry will be
   * the set window geometry clamped to the bounding rectangle of the
   * combined geometry of the surface of the xdg_surface and the associated
   * subsurfaces.
   */
  static inline void
  xdg_surface_set_window_geometry(struct xdg_surface *xdg_surface, int32_t x, int32_t y, int32_t width, int32_t height)
  {
  	wl_proxy_marshal((struct wl_proxy *) xdg_surface,
  			 XDG_SURFACE_SET_WINDOW_GEOMETRY, x, y, width, height);
  }
  
  /**
   * @ingroup iface_xdg_surface
   *
   * When a configure event is received, if a client commits the
   * surface in response to the configure event, then the client
   * must make an ack_configure request sometime before the commit
   * request, passing along the serial of the configure event.
   *
   * For instance, for toplevel surfaces the compositor might use this
   * information to move a surface to the top left only when the client has
   * drawn itself for the maximized or fullscreen state.
   *
   * If the client receives multiple configure events before it
   * can respond to one, it only has to ack the last configure event.
   *
   * A client is not required to commit immediately after sending
   * an ack_configure request - it may even ack_configure several times
   * before its next surface commit.
   *
   * A client may send multiple ack_configure requests before committing, but
   * only the last request sent before a commit indicates which configure
   * event the client really is responding to.
   */
  static inline void
  xdg_surface_ack_configure(struct xdg_surface *xdg_surface, uint32_t serial)
  {
  	wl_proxy_marshal((struct wl_proxy *) xdg_surface,
  			 XDG_SURFACE_ACK_CONFIGURE, serial);
  }
  
  #ifndef XDG_TOPLEVEL_RESIZE_EDGE_ENUM
  #define XDG_TOPLEVEL_RESIZE_EDGE_ENUM
  /**
   * @ingroup iface_xdg_toplevel
   * edge values for resizing
   *
   * These values are used to indicate which edge of a surface
   * is being dragged in a resize operation.
   */
  enum xdg_toplevel_resize_edge {
  	XDG_TOPLEVEL_RESIZE_EDGE_NONE = 0,
  	XDG_TOPLEVEL_RESIZE_EDGE_TOP = 1,
  	XDG_TOPLEVEL_RESIZE_EDGE_BOTTOM = 2,
  	XDG_TOPLEVEL_RESIZE_EDGE_LEFT = 4,
  	XDG_TOPLEVEL_RESIZE_EDGE_TOP_LEFT = 5,
  	XDG_TOPLEVEL_RESIZE_EDGE_BOTTOM_LEFT = 6,
  	XDG_TOPLEVEL_RESIZE_EDGE_RIGHT = 8,
  	XDG_TOPLEVEL_RESIZE_EDGE_TOP_RIGHT = 9,
  	XDG_TOPLEVEL_RESIZE_EDGE_BOTTOM_RIGHT = 10,
  };
  #endif /* XDG_TOPLEVEL_RESIZE_EDGE_ENUM */
  
  #ifndef XDG_TOPLEVEL_STATE_ENUM
  #define XDG_TOPLEVEL_STATE_ENUM
  /**
   * @ingroup iface_xdg_toplevel
   * the surface is tiled
   *
   * The window is currently in a tiled layout and the bottom edge is
   * considered to be adjacent to another part of the tiling grid.
   */
  enum xdg_toplevel_state {
  	/**
  	 * the surface is maximized
  	 */
  	XDG_TOPLEVEL_STATE_MAXIMIZED = 1,
  	/**
  	 * the surface is fullscreen
  	 */
  	XDG_TOPLEVEL_STATE_FULLSCREEN = 2,
  	/**
  	 * the surface is being resized
  	 */
  	XDG_TOPLEVEL_STATE_RESIZING = 3,
  	/**
  	 * the surface is now activated
  	 */
  	XDG_TOPLEVEL_STATE_ACTIVATED = 4,
  	/**
  	 * @since 2
  	 */
  	XDG_TOPLEVEL_STATE_TILED_LEFT = 5,
  	/**
  	 * @since 2
  	 */
  	XDG_TOPLEVEL_STATE_TILED_RIGHT = 6,
  	/**
  	 * @since 2
  	 */
  	XDG_TOPLEVEL_STATE_TILED_TOP = 7,
  	/**
  	 * @since 2
  	 */
  	XDG_TOPLEVEL_STATE_TILED_BOTTOM = 8,
  };
  /**
   * @ingroup iface_xdg_toplevel
   */
  #define XDG_TOPLEVEL_STATE_TILED_LEFT_SINCE_VERSION 2
  /**
   * @ingroup iface_xdg_toplevel
   */
  #define XDG_TOPLEVEL_STATE_TILED_RIGHT_SINCE_VERSION 2
  /**
   * @ingroup iface_xdg_toplevel
   */
  #define XDG_TOPLEVEL_STATE_TILED_TOP_SINCE_VERSION 2
  /**
   * @ingroup iface_xdg_toplevel
   */
  #define XDG_TOPLEVEL_STATE_TILED_BOTTOM_SINCE_VERSION 2
  #endif /* XDG_TOPLEVEL_STATE_ENUM */
  
  /**
   * @ingroup iface_xdg_toplevel
   * @struct xdg_toplevel_listener
   */
  struct xdg_toplevel_listener {
  	/**
  	 * suggest a surface change
  	 *
  	 * This configure event asks the client to resize its toplevel
  	 * surface or to change its state. The configured state should not
  	 * be applied immediately. See xdg_surface.configure for details.
  	 *
  	 * The width and height arguments specify a hint to the window
  	 * about how its surface should be resized in window geometry
  	 * coordinates. See set_window_geometry.
  	 *
  	 * If the width or height arguments are zero, it means the client
  	 * should decide its own window dimension. This may happen when the
  	 * compositor needs to configure the state of the surface but
  	 * doesn't have any information about any previous or expected
  	 * dimension.
  	 *
  	 * The states listed in the event specify how the width/height
  	 * arguments should be interpreted, and possibly how it should be
  	 * drawn.
  	 *
  	 * Clients must send an ack_configure in response to this event.
  	 * See xdg_surface.configure and xdg_surface.ack_configure for
  	 * details.
  	 */
  	void (*configure)(void *data,
  			  struct xdg_toplevel *xdg_toplevel,
  			  int32_t width,
  			  int32_t height,
  			  struct wl_array *states);
  	/**
  	 * surface wants to be closed
  	 *
  	 * The close event is sent by the compositor when the user wants
  	 * the surface to be closed. This should be equivalent to the user
  	 * clicking the close button in client-side decorations, if your
  	 * application has any.
  	 *
  	 * This is only a request that the user intends to close the
  	 * window. The client may choose to ignore this request, or show a
  	 * dialog to ask the user to save their data, etc.
  	 */
  	void (*close)(void *data,
  		      struct xdg_toplevel *xdg_toplevel);
  };
  
  /**
   * @ingroup iface_xdg_toplevel
   */
  static inline int
  xdg_toplevel_add_listener(struct xdg_toplevel *xdg_toplevel,
  			  const struct xdg_toplevel_listener *listener, void *data)
  {
  	return wl_proxy_add_listener((struct wl_proxy *) xdg_toplevel,
  				     (void (**)(void)) listener, data);
  }
  
  #define XDG_TOPLEVEL_DESTROY 0
  #define XDG_TOPLEVEL_SET_PARENT 1
  #define XDG_TOPLEVEL_SET_TITLE 2
  #define XDG_TOPLEVEL_SET_APP_ID 3
  #define XDG_TOPLEVEL_SHOW_WINDOW_MENU 4
  #define XDG_TOPLEVEL_MOVE 5
  #define XDG_TOPLEVEL_RESIZE 6
  #define XDG_TOPLEVEL_SET_MAX_SIZE 7
  #define XDG_TOPLEVEL_SET_MIN_SIZE 8
  #define XDG_TOPLEVEL_SET_MAXIMIZED 9
  #define XDG_TOPLEVEL_UNSET_MAXIMIZED 10
  #define XDG_TOPLEVEL_SET_FULLSCREEN 11
  #define XDG_TOPLEVEL_UNSET_FULLSCREEN 12
  #define XDG_TOPLEVEL_SET_MINIMIZED 13
  
  /**
   * @ingroup iface_xdg_toplevel
   */
  #define XDG_TOPLEVEL_CONFIGURE_SINCE_VERSION 1
  /**
   * @ingroup iface_xdg_toplevel
   */
  #define XDG_TOPLEVEL_CLOSE_SINCE_VERSION 1
  
  /**
   * @ingroup iface_xdg_toplevel
   */
  #define XDG_TOPLEVEL_DESTROY_SINCE_VERSION 1
  /**
   * @ingroup iface_xdg_toplevel
   */
  #define XDG_TOPLEVEL_SET_PARENT_SINCE_VERSION 1
  /**
   * @ingroup iface_xdg_toplevel
   */
  #define XDG_TOPLEVEL_SET_TITLE_SINCE_VERSION 1
  /**
   * @ingroup iface_xdg_toplevel
   */
  #define XDG_TOPLEVEL_SET_APP_ID_SINCE_VERSION 1
  /**
   * @ingroup iface_xdg_toplevel
   */
  #define XDG_TOPLEVEL_SHOW_WINDOW_MENU_SINCE_VERSION 1
  /**
   * @ingroup iface_xdg_toplevel
   */
  #define XDG_TOPLEVEL_MOVE_SINCE_VERSION 1
  /**
   * @ingroup iface_xdg_toplevel
   */
  #define XDG_TOPLEVEL_RESIZE_SINCE_VERSION 1
  /**
   * @ingroup iface_xdg_toplevel
   */
  #define XDG_TOPLEVEL_SET_MAX_SIZE_SINCE_VERSION 1
  /**
   * @ingroup iface_xdg_toplevel
   */
  #define XDG_TOPLEVEL_SET_MIN_SIZE_SINCE_VERSION 1
  /**
   * @ingroup iface_xdg_toplevel
   */
  #define XDG_TOPLEVEL_SET_MAXIMIZED_SINCE_VERSION 1
  /**
   * @ingroup iface_xdg_toplevel
   */
  #define XDG_TOPLEVEL_UNSET_MAXIMIZED_SINCE_VERSION 1
  /**
   * @ingroup iface_xdg_toplevel
   */
  #define XDG_TOPLEVEL_SET_FULLSCREEN_SINCE_VERSION 1
  /**
   * @ingroup iface_xdg_toplevel
   */
  #define XDG_TOPLEVEL_UNSET_FULLSCREEN_SINCE_VERSION 1
  /**
   * @ingroup iface_xdg_toplevel
   */
  #define XDG_TOPLEVEL_SET_MINIMIZED_SINCE_VERSION 1
  
  /** @ingroup iface_xdg_toplevel */
  static inline void
  xdg_toplevel_set_user_data(struct xdg_toplevel *xdg_toplevel, void *user_data)
  {
  	wl_proxy_set_user_data((struct wl_proxy *) xdg_toplevel, user_data);
  }
  
  /** @ingroup iface_xdg_toplevel */
  static inline void *
  xdg_toplevel_get_user_data(struct xdg_toplevel *xdg_toplevel)
  {
  	return wl_proxy_get_user_data((struct wl_proxy *) xdg_toplevel);
  }
  
  static inline uint32_t
  xdg_toplevel_get_version(struct xdg_toplevel *xdg_toplevel)
  {
  	return wl_proxy_get_version((struct wl_proxy *) xdg_toplevel);
  }
  
  /**
   * @ingroup iface_xdg_toplevel
   *
   * This request destroys the role surface and unmaps the surface;
   * see "Unmapping" behavior in interface section for details.
   */
  static inline void
  xdg_toplevel_destroy(struct xdg_toplevel *xdg_toplevel)
  {
  	wl_proxy_marshal((struct wl_proxy *) xdg_toplevel,
  			 XDG_TOPLEVEL_DESTROY);
  
  	wl_proxy_destroy((struct wl_proxy *) xdg_toplevel);
  }
  
  /**
   * @ingroup iface_xdg_toplevel
   *
   * Set the "parent" of this surface. This surface should be stacked
   * above the parent surface and all other ancestor surfaces.
   *
   * Parent windows should be set on dialogs, toolboxes, or other
   * "auxiliary" surfaces, so that the parent is raised when the dialog
   * is raised.
   *
   * Setting a null parent for a child window removes any parent-child
   * relationship for the child. Setting a null parent for a window which
   * currently has no parent is a no-op.
   *
   * If the parent is unmapped then its children are managed as
   * though the parent of the now-unmapped parent has become the
   * parent of this surface. If no parent exists for the now-unmapped
   * parent then the children are managed as though they have no
   * parent surface.
   */
  static inline void
  xdg_toplevel_set_parent(struct xdg_toplevel *xdg_toplevel, struct xdg_toplevel *parent)
  {
  	wl_proxy_marshal((struct wl_proxy *) xdg_toplevel,
  			 XDG_TOPLEVEL_SET_PARENT, parent);
  }
  
  /**
   * @ingroup iface_xdg_toplevel
   *
   * Set a short title for the surface.
   *
   * This string may be used to identify the surface in a task bar,
   * window list, or other user interface elements provided by the
   * compositor.
   *
   * The string must be encoded in UTF-8.
   */
  static inline void
  xdg_toplevel_set_title(struct xdg_toplevel *xdg_toplevel, const char *title)
  {
  	wl_proxy_marshal((struct wl_proxy *) xdg_toplevel,
  			 XDG_TOPLEVEL_SET_TITLE, title);
  }
  
  /**
   * @ingroup iface_xdg_toplevel
   *
   * Set an application identifier for the surface.
   *
   * The app ID identifies the general class of applications to which
   * the surface belongs. The compositor can use this to group multiple
   * surfaces together, or to determine how to launch a new application.
   *
   * For D-Bus activatable applications, the app ID is used as the D-Bus
   * service name.
   *
   * The compositor shell will try to group application surfaces together
   * by their app ID. As a best practice, it is suggested to select app
   * ID's that match the basename of the application's .desktop file.
   * For example, "org.freedesktop.FooViewer" where the .desktop file is
   * "org.freedesktop.FooViewer.desktop".
   *
   * Like other properties, a set_app_id request can be sent after the
   * xdg_toplevel has been mapped to update the property.
   *
   * See the desktop-entry specification [0] for more details on
   * application identifiers and how they relate to well-known D-Bus
   * names and .desktop files.
   *
   * [0] http://standards.freedesktop.org/desktop-entry-spec/
   */
  static inline void
  xdg_toplevel_set_app_id(struct xdg_toplevel *xdg_toplevel, const char *app_id)
  {
  	wl_proxy_marshal((struct wl_proxy *) xdg_toplevel,
  			 XDG_TOPLEVEL_SET_APP_ID, app_id);
  }
  
  /**
   * @ingroup iface_xdg_toplevel
   *
   * Clients implementing client-side decorations might want to show
   * a context menu when right-clicking on the decorations, giving the
   * user a menu that they can use to maximize or minimize the window.
   *
   * This request asks the compositor to pop up such a window menu at
   * the given position, relative to the local surface coordinates of
   * the parent surface. There are no guarantees as to what menu items
   * the window menu contains.
   *
   * This request must be used in response to some sort of user action
   * like a button press, key press, or touch down event.
   */
  static inline void
  xdg_toplevel_show_window_menu(struct xdg_toplevel *xdg_toplevel, struct wl_seat *seat, uint32_t serial, int32_t x, int32_t y)
  {
  	wl_proxy_marshal((struct wl_proxy *) xdg_toplevel,
  			 XDG_TOPLEVEL_SHOW_WINDOW_MENU, seat, serial, x, y);
  }
  
  /**
   * @ingroup iface_xdg_toplevel
   *
   * Start an interactive, user-driven move of the surface.
   *
   * This request must be used in response to some sort of user action
   * like a button press, key press, or touch down event. The passed
   * serial is used to determine the type of interactive move (touch,
   * pointer, etc).
   *
   * The server may ignore move requests depending on the state of
   * the surface (e.g. fullscreen or maximized), or if the passed serial
   * is no longer valid.
   *
   * If triggered, the surface will lose the focus of the device
   * (wl_pointer, wl_touch, etc) used for the move. It is up to the
   * compositor to visually indicate that the move is taking place, such as
   * updating a pointer cursor, during the move. There is no guarantee
   * that the device focus will return when the move is completed.
   */
  static inline void
  xdg_toplevel_move(struct xdg_toplevel *xdg_toplevel, struct wl_seat *seat, uint32_t serial)
  {
  	wl_proxy_marshal((struct wl_proxy *) xdg_toplevel,
  			 XDG_TOPLEVEL_MOVE, seat, serial);
  }
  
  /**
   * @ingroup iface_xdg_toplevel
   *
   * Start a user-driven, interactive resize of the surface.
   *
   * This request must be used in response to some sort of user action
   * like a button press, key press, or touch down event. The passed
   * serial is used to determine the type of interactive resize (touch,
   * pointer, etc).
   *
   * The server may ignore resize requests depending on the state of
   * the surface (e.g. fullscreen or maximized).
   *
   * If triggered, the client will receive configure events with the
   * "resize" state enum value and the expected sizes. See the "resize"
   * enum value for more details about what is required. The client
   * must also acknowledge configure events using "ack_configure". After
   * the resize is completed, the client will receive another "configure"
   * event without the resize state.
   *
   * If triggered, the surface also will lose the focus of the device
   * (wl_pointer, wl_touch, etc) used for the resize. It is up to the
   * compositor to visually indicate that the resize is taking place,
   * such as updating a pointer cursor, during the resize. There is no
   * guarantee that the device focus will return when the resize is
   * completed.
   *
   * The edges parameter specifies how the surface should be resized,
   * and is one of the values of the resize_edge enum. The compositor
   * may use this information to update the surface position for
   * example when dragging the top left corner. The compositor may also
   * use this information to adapt its behavior, e.g. choose an
   * appropriate cursor image.
   */
  static inline void
  xdg_toplevel_resize(struct xdg_toplevel *xdg_toplevel, struct wl_seat *seat, uint32_t serial, uint32_t edges)
  {
  	wl_proxy_marshal((struct wl_proxy *) xdg_toplevel,
  			 XDG_TOPLEVEL_RESIZE, seat, serial, edges);
  }
  
  /**
   * @ingroup iface_xdg_toplevel
   *
   * Set a maximum size for the window.
   *
   * The client can specify a maximum size so that the compositor does
   * not try to configure the window beyond this size.
   *
   * The width and height arguments are in window geometry coordinates.
   * See xdg_surface.set_window_geometry.
   *
   * Values set in this way are double-buffered. They will get applied
   * on the next commit.
   *
   * The compositor can use this information to allow or disallow
   * different states like maximize or fullscreen and draw accurate
   * animations.
   *
   * Similarly, a tiling window manager may use this information to
   * place and resize client windows in a more effective way.
   *
   * The client should not rely on the compositor to obey the maximum
   * size. The compositor may decide to ignore the values set by the
   * client and request a larger size.
   *
   * If never set, or a value of zero in the request, means that the
   * client has no expected maximum size in the given dimension.
   * As a result, a client wishing to reset the maximum size
   * to an unspecified state can use zero for width and height in the
   * request.
   *
   * Requesting a maximum size to be smaller than the minimum size of
   * a surface is illegal and will result in a protocol error.
   *
   * The width and height must be greater than or equal to zero. Using
   * strictly negative values for width and height will result in a
   * protocol error.
   */
  static inline void
  xdg_toplevel_set_max_size(struct xdg_toplevel *xdg_toplevel, int32_t width, int32_t height)
  {
  	wl_proxy_marshal((struct wl_proxy *) xdg_toplevel,
  			 XDG_TOPLEVEL_SET_MAX_SIZE, width, height);
  }
  
  /**
   * @ingroup iface_xdg_toplevel
   *
   * Set a minimum size for the window.
   *
   * The client can specify a minimum size so that the compositor does
   * not try to configure the window below this size.
   *
   * The width and height arguments are in window geometry coordinates.
   * See xdg_surface.set_window_geometry.
   *
   * Values set in this way are double-buffered. They will get applied
   * on the next commit.
   *
   * The compositor can use this information to allow or disallow
   * different states like maximize or fullscreen and draw accurate
   * animations.
   *
   * Similarly, a tiling window manager may use this information to
   * place and resize client windows in a more effective way.
   *
   * The client should not rely on the compositor to obey the minimum
   * size. The compositor may decide to ignore the values set by the
   * client and request a smaller size.
   *
   * If never set, or a value of zero in the request, means that the
   * client has no expected minimum size in the given dimension.
   * As a result, a client wishing to reset the minimum size
   * to an unspecified state can use zero for width and height in the
   * request.
   *
   * Requesting a minimum size to be larger than the maximum size of
   * a surface is illegal and will result in a protocol error.
   *
   * The width and height must be greater than or equal to zero. Using
   * strictly negative values for width and height will result in a
   * protocol error.
   */
  static inline void
  xdg_toplevel_set_min_size(struct xdg_toplevel *xdg_toplevel, int32_t width, int32_t height)
  {
  	wl_proxy_marshal((struct wl_proxy *) xdg_toplevel,
  			 XDG_TOPLEVEL_SET_MIN_SIZE, width, height);
  }
  
  /**
   * @ingroup iface_xdg_toplevel
   *
   * Maximize the surface.
   *
   * After requesting that the surface should be maximized, the compositor
   * will respond by emitting a configure event. Whether this configure
   * actually sets the window maximized is subject to compositor policies.
   * The client must then update its content, drawing in the configured
   * state. The client must also acknowledge the configure when committing
   * the new content (see ack_configure).
   *
   * It is up to the compositor to decide how and where to maximize the
   * surface, for example which output and what region of the screen should
   * be used.
   *
   * If the surface was already maximized, the compositor will still emit
   * a configure event with the "maximized" state.
   *
   * If the surface is in a fullscreen state, this request has no direct
   * effect. It may alter the state the surface is returned to when
   * unmaximized unless overridden by the compositor.
   */
  static inline void
  xdg_toplevel_set_maximized(struct xdg_toplevel *xdg_toplevel)
  {
  	wl_proxy_marshal((struct wl_proxy *) xdg_toplevel,
  			 XDG_TOPLEVEL_SET_MAXIMIZED);
  }
  
  /**
   * @ingroup iface_xdg_toplevel
   *
   * Unmaximize the surface.
   *
   * After requesting that the surface should be unmaximized, the compositor
   * will respond by emitting a configure event. Whether this actually
   * un-maximizes the window is subject to compositor policies.
   * If available and applicable, the compositor will include the window
   * geometry dimensions the window had prior to being maximized in the
   * configure event. The client must then update its content, drawing it in
   * the configured state. The client must also acknowledge the configure
   * when committing the new content (see ack_configure).
   *
   * It is up to the compositor to position the surface after it was
   * unmaximized; usually the position the surface had before maximizing, if
   * applicable.
   *
   * If the surface was already not maximized, the compositor will still
   * emit a configure event without the "maximized" state.
   *
   * If the surface is in a fullscreen state, this request has no direct
   * effect. It may alter the state the surface is returned to when
   * unmaximized unless overridden by the compositor.
   */
  static inline void
  xdg_toplevel_unset_maximized(struct xdg_toplevel *xdg_toplevel)
  {
  	wl_proxy_marshal((struct wl_proxy *) xdg_toplevel,
  			 XDG_TOPLEVEL_UNSET_MAXIMIZED);
  }
  
  /**
   * @ingroup iface_xdg_toplevel
   *
   * Make the surface fullscreen.
   *
   * After requesting that the surface should be fullscreened, the
   * compositor will respond by emitting a configure event. Whether the
   * client is actually put into a fullscreen state is subject to compositor
   * policies. The client must also acknowledge the configure when
   * committing the new content (see ack_configure).
   *
   * The output passed by the request indicates the client's preference as
   * to which display it should be set fullscreen on. If this value is NULL,
   * it's up to the compositor to choose which display will be used to map
   * this surface.
   *
   * If the surface doesn't cover the whole output, the compositor will
   * position the surface in the center of the output and compensate with
   * with border fill covering the rest of the output. The content of the
   * border fill is undefined, but should be assumed to be in some way that
   * attempts to blend into the surrounding area (e.g. solid black).
   *
   * If the fullscreened surface is not opaque, the compositor must make
   * sure that other screen content not part of the same surface tree (made
   * up of subsurfaces, popups or similarly coupled surfaces) are not
   * visible below the fullscreened surface.
   */
  static inline void
  xdg_toplevel_set_fullscreen(struct xdg_toplevel *xdg_toplevel, struct wl_output *output)
  {
  	wl_proxy_marshal((struct wl_proxy *) xdg_toplevel,
  			 XDG_TOPLEVEL_SET_FULLSCREEN, output);
  }
  
  /**
   * @ingroup iface_xdg_toplevel
   *
   * Make the surface no longer fullscreen.
   *
   * After requesting that the surface should be unfullscreened, the
   * compositor will respond by emitting a configure event.
   * Whether this actually removes the fullscreen state of the client is
   * subject to compositor policies.
   *
   * Making a surface unfullscreen sets states for the surface based on the following:
   * * the state(s) it may have had before becoming fullscreen
   * * any state(s) decided by the compositor
   * * any state(s) requested by the client while the surface was fullscreen
   *
   * The compositor may include the previous window geometry dimensions in
   * the configure event, if applicable.
   *
   * The client must also acknowledge the configure when committing the new
   * content (see ack_configure).
   */
  static inline void
  xdg_toplevel_unset_fullscreen(struct xdg_toplevel *xdg_toplevel)
  {
  	wl_proxy_marshal((struct wl_proxy *) xdg_toplevel,
  			 XDG_TOPLEVEL_UNSET_FULLSCREEN);
  }
  
  /**
   * @ingroup iface_xdg_toplevel
   *
   * Request that the compositor minimize your surface. There is no
   * way to know if the surface is currently minimized, nor is there
   * any way to unset minimization on this surface.
   *
   * If you are looking to throttle redrawing when minimized, please
   * instead use the wl_surface.frame event for this, as this will
   * also work with live previews on windows in Alt-Tab, Expose or
   * similar compositor features.
   */
  static inline void
  xdg_toplevel_set_minimized(struct xdg_toplevel *xdg_toplevel)
  {
  	wl_proxy_marshal((struct wl_proxy *) xdg_toplevel,
  			 XDG_TOPLEVEL_SET_MINIMIZED);
  }
  
  #ifndef XDG_POPUP_ERROR_ENUM
  #define XDG_POPUP_ERROR_ENUM
  enum xdg_popup_error {
  	/**
  	 * tried to grab after being mapped
  	 */
  	XDG_POPUP_ERROR_INVALID_GRAB = 0,
  };
  #endif /* XDG_POPUP_ERROR_ENUM */
  
  /**
   * @ingroup iface_xdg_popup
   * @struct xdg_popup_listener
   */
  struct xdg_popup_listener {
  	/**
  	 * configure the popup surface
  	 *
  	 * This event asks the popup surface to configure itself given
  	 * the configuration. The configured state should not be applied
  	 * immediately. See xdg_surface.configure for details.
  	 *
  	 * The x and y arguments represent the position the popup was
  	 * placed at given the xdg_positioner rule, relative to the upper
  	 * left corner of the window geometry of the parent surface.
  	 *
  	 * For version 2 or older, the configure event for an xdg_popup is
  	 * only ever sent once for the initial configuration. Starting with
  	 * version 3, it may be sent again if the popup is setup with an
  	 * xdg_positioner with set_reactive requested, or in response to
  	 * xdg_popup.reposition requests.
  	 * @param x x position relative to parent surface window geometry
  	 * @param y y position relative to parent surface window geometry
  	 * @param width window geometry width
  	 * @param height window geometry height
  	 */
  	void (*configure)(void *data,
  			  struct xdg_popup *xdg_popup,
  			  int32_t x,
  			  int32_t y,
  			  int32_t width,
  			  int32_t height);
  	/**
  	 * popup interaction is done
  	 *
  	 * The popup_done event is sent out when a popup is dismissed by
  	 * the compositor. The client should destroy the xdg_popup object
  	 * at this point.
  	 */
  	void (*popup_done)(void *data,
  			   struct xdg_popup *xdg_popup);
  	/**
  	 * signal the completion of a repositioned request
  	 *
  	 * The repositioned event is sent as part of a popup
  	 * configuration sequence, together with xdg_popup.configure and
  	 * lastly xdg_surface.configure to notify the completion of a
  	 * reposition request.
  	 *
  	 * The repositioned event is to notify about the completion of a
  	 * xdg_popup.reposition request. The token argument is the token
  	 * passed in the xdg_popup.reposition request.
  	 *
  	 * Immediately after this event is emitted, xdg_popup.configure and
  	 * xdg_surface.configure will be sent with the updated size and
  	 * position, as well as a new configure serial.
  	 *
  	 * The client should optionally update the content of the popup,
  	 * but must acknowledge the new popup configuration for the new
  	 * position to take effect. See xdg_surface.ack_configure for
  	 * details.
  	 * @param token reposition request token
  	 * @since 3
  	 */
  	void (*repositioned)(void *data,
  			     struct xdg_popup *xdg_popup,
  			     uint32_t token);
  };
  
  /**
   * @ingroup iface_xdg_popup
   */
  static inline int
  xdg_popup_add_listener(struct xdg_popup *xdg_popup,
  		       const struct xdg_popup_listener *listener, void *data)
  {
  	return wl_proxy_add_listener((struct wl_proxy *) xdg_popup,
  				     (void (**)(void)) listener, data);
  }
  
  #define XDG_POPUP_DESTROY 0
  #define XDG_POPUP_GRAB 1
  #define XDG_POPUP_REPOSITION 2
  
  /**
   * @ingroup iface_xdg_popup
   */
  #define XDG_POPUP_CONFIGURE_SINCE_VERSION 1
  /**
   * @ingroup iface_xdg_popup
   */
  #define XDG_POPUP_POPUP_DONE_SINCE_VERSION 1
  /**
   * @ingroup iface_xdg_popup
   */
  #define XDG_POPUP_REPOSITIONED_SINCE_VERSION 3
  
  /**
   * @ingroup iface_xdg_popup
   */
  #define XDG_POPUP_DESTROY_SINCE_VERSION 1
  /**
   * @ingroup iface_xdg_popup
   */
  #define XDG_POPUP_GRAB_SINCE_VERSION 1
  /**
   * @ingroup iface_xdg_popup
   */
  #define XDG_POPUP_REPOSITION_SINCE_VERSION 3
  
  /** @ingroup iface_xdg_popup */
  static inline void
  xdg_popup_set_user_data(struct xdg_popup *xdg_popup, void *user_data)
  {
  	wl_proxy_set_user_data((struct wl_proxy *) xdg_popup, user_data);
  }
  
  /** @ingroup iface_xdg_popup */
  static inline void *
  xdg_popup_get_user_data(struct xdg_popup *xdg_popup)
  {
  	return wl_proxy_get_user_data((struct wl_proxy *) xdg_popup);
  }
  
  static inline uint32_t
  xdg_popup_get_version(struct xdg_popup *xdg_popup)
  {
  	return wl_proxy_get_version((struct wl_proxy *) xdg_popup);
  }
  
  /**
   * @ingroup iface_xdg_popup
   *
   * This destroys the popup. Explicitly destroying the xdg_popup
   * object will also dismiss the popup, and unmap the surface.
   *
   * If this xdg_popup is not the "topmost" popup, a protocol error
   * will be sent.
   */
  static inline void
  xdg_popup_destroy(struct xdg_popup *xdg_popup)
  {
  	wl_proxy_marshal((struct wl_proxy *) xdg_popup,
  			 XDG_POPUP_DESTROY);
  
  	wl_proxy_destroy((struct wl_proxy *) xdg_popup);
  }
  
  /**
   * @ingroup iface_xdg_popup
   *
   * This request makes the created popup take an explicit grab. An explicit
   * grab will be dismissed when the user dismisses the popup, or when the
   * client destroys the xdg_popup. This can be done by the user clicking
   * outside the surface, using the keyboard, or even locking the screen
   * through closing the lid or a timeout.
   *
   * If the compositor denies the grab, the popup will be immediately
   * dismissed.
   *
   * This request must be used in response to some sort of user action like a
   * button press, key press, or touch down event. The serial number of the
   * event should be passed as 'serial'.
   *
   * The parent of a grabbing popup must either be an xdg_toplevel surface or
   * another xdg_popup with an explicit grab. If the parent is another
   * xdg_popup it means that the popups are nested, with this popup now being
   * the topmost popup.
   *
   * Nested popups must be destroyed in the reverse order they were created
   * in, e.g. the only popup you are allowed to destroy at all times is the
   * topmost one.
   *
   * When compositors choose to dismiss a popup, they may dismiss every
   * nested grabbing popup as well. When a compositor dismisses popups, it
   * will follow the same dismissing order as required from the client.
   *
   * The parent of a grabbing popup must either be another xdg_popup with an
   * active explicit grab, or an xdg_popup or xdg_toplevel, if there are no
   * explicit grabs already taken.
   *
   * If the topmost grabbing popup is destroyed, the grab will be returned to
   * the parent of the popup, if that parent previously had an explicit grab.
   *
   * If the parent is a grabbing popup which has already been dismissed, this
   * popup will be immediately dismissed. If the parent is a popup that did
   * not take an explicit grab, an error will be raised.
   *
   * During a popup grab, the client owning the grab will receive pointer
   * and touch events for all their surfaces as normal (similar to an
   * "owner-events" grab in X11 parlance), while the top most grabbing popup
   * will always have keyboard focus.
   */
  static inline void
  xdg_popup_grab(struct xdg_popup *xdg_popup, struct wl_seat *seat, uint32_t serial)
  {
  	wl_proxy_marshal((struct wl_proxy *) xdg_popup,
  			 XDG_POPUP_GRAB, seat, serial);
  }
  
  /**
   * @ingroup iface_xdg_popup
   *
   * Reposition an already-mapped popup. The popup will be placed given the
   * details in the passed xdg_positioner object, and a
   * xdg_popup.repositioned followed by xdg_popup.configure and
   * xdg_surface.configure will be emitted in response. Any parameters set
   * by the previous positioner will be discarded.
   *
   * The passed token will be sent in the corresponding
   * xdg_popup.repositioned event. The new popup position will not take
   * effect until the corresponding configure event is acknowledged by the
   * client. See xdg_popup.repositioned for details. The token itself is
   * opaque, and has no other special meaning.
   *
   * If multiple reposition requests are sent, the compositor may skip all
   * but the last one.
   *
   * If the popup is repositioned in response to a configure event for its
   * parent, the client should send an xdg_positioner.set_parent_configure
   * and possibly an xdg_positioner.set_parent_size request to allow the
   * compositor to properly constrain the popup.
   *
   * If the popup is repositioned together with a parent that is being
   * resized, but not in response to a configure event, the client should
   * send an xdg_positioner.set_parent_size request.
   */
  static inline void
  xdg_popup_reposition(struct xdg_popup *xdg_popup, struct xdg_positioner *positioner, uint32_t token)
  {
  	wl_proxy_marshal((struct wl_proxy *) xdg_popup,
  			 XDG_POPUP_REPOSITION, positioner, token);
  }
  
  #ifdef  __cplusplus
  }
  #endif
  
  #endif
  