content: // Generated by dart-wayland-scanner
  // https://github.com/your-repo/dart-wayland-scanner
  // XML file : https://gitlab.freedesktop.org/wayland/wayland-protocols/-/raw/main/stable/xdg-shell/xdg-shell.xml
  //
  // xdg_shell Protocol Copyright: 
  /// 
  /// 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.
  /// 
  
  library client;
  
  import 'package:wayland/wayland.dart';
  import 'package:wayland/protocols/wayland.dart';
  import 'dart:async';
  import 'dart:convert';
  import 'dart:typed_data';
  import 'package:result_dart/result_dart.dart';
  
  /// 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. The “unresponsive”
  /// error is provided for compositors that wish to disconnect unresponsive
  /// clients.
  /// 
  /// 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.
  /// 
  class XdgWmBasePingEvent {
  /// pass this to the pong request
    final int serial;
  
    XdgWmBasePingEvent(
  this.serial,
  
  );
  
  @override
  toString(){
  return "XdgWmBasePingEvent (serial: $serial)";
  }
  }
  
  typedef XdgWmBasePingEventHandler = void Function(XdgWmBasePingEvent);
  
  
  /// create desktop-style surfaces
  /// 
  /// 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.
  /// 
  class XdgWmBase extends Proxy implements Dispatcher{
    final Context innerContext;
    final version = 6;
  
    XdgWmBase(this.innerContext) : super(innerContext.allocateClientId()){
      innerContext.register(this);
    }
  
  
  @override
  toString(){
  return "XdgWmBase {name: 'xdg_wm_base', id: '$objectId', version: '6',}";
  }
  
  /// destroy 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 defunct_surfaces error.
  /// 
    Result<void,Object> destroy() {
  innerContext.unRegister(this);
      logLn("XdgWmBase::destroy ");
  var arguments = [];var argTypes = <WaylandType>[];
  var calclulatedSize  = calculateSize(argTypes, arguments);
  final bytesBuilder = BytesBuilder();
  bytesBuilder.add(Uint32List.fromList([objectId, (calclulatedSize << 16) | 0]).buffer.asUint8List());
      try{
      innerContext.sendMessage(bytesBuilder.toBytes(), );
      }catch (e) {
        logLn("Exception in XdgWmBase::destroy: $e");
     return Failure(e);
      }
      return Success(Object());
    }
  
  /// create a positioner object
  /// 
  /// 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.
  /// 
  /// [id]:
    Result<XdgPositioner,Object> createPositioner() {
    var id =  XdgPositioner(innerContext);
      logLn("XdgWmBase::createPositioner  id: $id");
  var arguments = [id];var argTypes = <WaylandType>[WaylandType.newId];
  var calclulatedSize  = calculateSize(argTypes, arguments);
  final bytesBuilder = BytesBuilder();
  bytesBuilder.add(Uint32List.fromList([objectId, (calclulatedSize << 16) | 1]).buffer.asUint8List());
      bytesBuilder.add(Uint32List.fromList([id.objectId]).buffer.asUint8List());
      try{
      innerContext.sendMessage(bytesBuilder.toBytes(), );
      }catch (e) {
        logLn("Exception in XdgWmBase::createPositioner: $e");
     return Failure(e);
      }
      return Success(id);
    }
  
  /// create a shell surface from a surface
  /// 
  /// 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 role 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.
  /// 
  /// [id]:
  /// [surface]:
    Result<XdgSurface,Object> getXdgSurface(Surface surface) {
    var id =  XdgSurface(innerContext);
      logLn("XdgWmBase::getXdgSurface  id: $id surface: $surface");
  var arguments = [id, surface];var argTypes = <WaylandType>[WaylandType.newId, WaylandType.object];
  var calclulatedSize  = calculateSize(argTypes, arguments);
  final bytesBuilder = BytesBuilder();
  bytesBuilder.add(Uint32List.fromList([objectId, (calclulatedSize << 16) | 2]).buffer.asUint8List());
      bytesBuilder.add(Uint32List.fromList([id.objectId]).buffer.asUint8List());
      bytesBuilder.add(Uint32List.fromList([surface.objectId]).buffer.asUint8List());
      try{
      innerContext.sendMessage(bytesBuilder.toBytes(), );
      }catch (e) {
        logLn("Exception in XdgWmBase::getXdgSurface: $e");
     return Failure(e);
      }
      return Success(id);
    }
  
  /// respond to a ping event
  /// 
  /// A client must respond to a ping event with a pong request or
  /// the client may be deemed unresponsive. See xdg_wm_base.ping
  /// and xdg_wm_base.error.unresponsive.
  /// 
  /// [serial]: serial of the ping event
    Result<void,Object> pong(int serial) {
      logLn("XdgWmBase::pong  serial: $serial");
  var arguments = [serial];var argTypes = <WaylandType>[WaylandType.uint];
  var calclulatedSize  = calculateSize(argTypes, arguments);
  final bytesBuilder = BytesBuilder();
  bytesBuilder.add(Uint32List.fromList([objectId, (calclulatedSize << 16) | 3]).buffer.asUint8List());
      bytesBuilder.add(Uint32List.fromList([serial]).buffer.asUint8List());
      try{
      innerContext.sendMessage(bytesBuilder.toBytes(), );
      }catch (e) {
        logLn("Exception in XdgWmBase::pong: $e");
     return Failure(e);
      }
      return Success(Object());
    }
  
  /// 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. The “unresponsive”
  /// error is provided for compositors that wish to disconnect unresponsive
  /// clients.
  /// 
  /// 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.
  /// 
  /// Event handler for Ping
  /// - [serial]: pass this to the pong request
   void onPing(XdgWmBasePingEventHandler handler) {
     _pingHandler = handler;
   }
  
   XdgWmBasePingEventHandler? _pingHandler;
  
   @override
   void dispatch(int opcode, int fd, Uint8List data) {
  logLn("XdgWmBase.dispatch($opcode, $fd, $data)");
     switch (opcode) {     case 0:
  
         if (_pingHandler != null) {
  var offset = 0;
  final serial = ByteData.view(data.buffer).getUint32(offset, Endian.little);
  offset += 4;
  var event = XdgWmBasePingEvent(
  serial,
          );
           _pingHandler!(event);
         }
         break;
     }
   }
  }
  
  /// 
  /// 
  
  enum XdgWmBaseError {
  /// given wl_surface has another role
    role("role", 0),/// xdg_wm_base was destroyed before children
    defunctSurfaces("defunct_surfaces", 1),/// the client tried to map or destroy a non-topmost popup
    notTheTopmostPopup("not_the_topmost_popup", 2),/// the client specified an invalid popup parent surface
    invalidPopupParent("invalid_popup_parent", 3),/// the client provided an invalid surface state
    invalidSurfaceState("invalid_surface_state", 4),/// the client provided an invalid positioner
    invalidPositioner("invalid_positioner", 5),/// the client didn’t respond to a ping event in time
    unresponsive("unresponsive", 6);
  const XdgWmBaseError(this.enumName, this.enumValue);
  final int enumValue;
  final String enumName;
  @override
  toString(){
  return "XdgWmBaseError {name: $enumName, value: $enumValue}";
  }
  }
  
  
  
  /// child surface positioner
  /// 
  /// 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 invalid_positioner error.
  /// 
  class XdgPositioner extends Proxy{
    final Context innerContext;
    final version = 6;
  
    XdgPositioner(this.innerContext) : super(innerContext.allocateClientId()){
      innerContext.register(this);
    }
  
  
  @override
  toString(){
  return "XdgPositioner {name: 'xdg_positioner', id: '$objectId', version: '6',}";
  }
  
  /// destroy the xdg_positioner object
  /// 
  /// Notify the compositor that the xdg_positioner will no longer be used.
  /// 
    Result<void,Object> destroy() {
  innerContext.unRegister(this);
      logLn("XdgPositioner::destroy ");
  var arguments = [];var argTypes = <WaylandType>[];
  var calclulatedSize  = calculateSize(argTypes, arguments);
  final bytesBuilder = BytesBuilder();
  bytesBuilder.add(Uint32List.fromList([objectId, (calclulatedSize << 16) | 0]).buffer.asUint8List());
      try{
      innerContext.sendMessage(bytesBuilder.toBytes(), );
      }catch (e) {
        logLn("Exception in XdgPositioner::destroy: $e");
     return Failure(e);
      }
      return Success(Object());
    }
  
  /// set the size of the to-be positioned rectangle
  /// 
  /// 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.
  /// 
  /// [width]: width of positioned rectangle
  /// [height]: height of positioned rectangle
    Result<void,Object> setSize(int width, int height) {
      logLn("XdgPositioner::setSize  width: $width height: $height");
  var arguments = [width, height];var argTypes = <WaylandType>[WaylandType.int, WaylandType.int];
  var calclulatedSize  = calculateSize(argTypes, arguments);
  final bytesBuilder = BytesBuilder();
  bytesBuilder.add(Uint32List.fromList([objectId, (calclulatedSize << 16) | 1]).buffer.asUint8List());
      bytesBuilder.add(Int32List.fromList([width]).buffer.asUint8List());
      bytesBuilder.add(Int32List.fromList([height]).buffer.asUint8List());
      try{
      innerContext.sendMessage(bytesBuilder.toBytes(), );
      }catch (e) {
        logLn("Exception in XdgPositioner::setSize: $e");
     return Failure(e);
      }
      return Success(Object());
    }
  
  /// set the anchor rectangle within the parent surface
  /// 
  /// 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.
  /// 
  /// [x]: x position of anchor rectangle
  /// [y]: y position of anchor rectangle
  /// [width]: width of anchor rectangle
  /// [height]: height of anchor rectangle
    Result<void,Object> setAnchorRect(int x, int y, int width, int height) {
      logLn("XdgPositioner::setAnchorRect  x: $x y: $y width: $width height: $height");
  var arguments = [x, y, width, height];var argTypes = <WaylandType>[WaylandType.int, WaylandType.int, WaylandType.int, WaylandType.int];
  var calclulatedSize  = calculateSize(argTypes, arguments);
  final bytesBuilder = BytesBuilder();
  bytesBuilder.add(Uint32List.fromList([objectId, (calclulatedSize << 16) | 2]).buffer.asUint8List());
      bytesBuilder.add(Int32List.fromList([x]).buffer.asUint8List());
      bytesBuilder.add(Int32List.fromList([y]).buffer.asUint8List());
      bytesBuilder.add(Int32List.fromList([width]).buffer.asUint8List());
      bytesBuilder.add(Int32List.fromList([height]).buffer.asUint8List());
      try{
      innerContext.sendMessage(bytesBuilder.toBytes(), );
      }catch (e) {
        logLn("Exception in XdgPositioner::setAnchorRect: $e");
     return Failure(e);
      }
      return Success(Object());
    }
  
  /// set anchor rectangle anchor
  /// 
  /// 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.
  /// 
  /// [anchor]: anchor
    Result<void,Object> setAnchor(int anchor) {
      logLn("XdgPositioner::setAnchor  anchor: $anchor");
  var arguments = [anchor];var argTypes = <WaylandType>[WaylandType.uint];
  var calclulatedSize  = calculateSize(argTypes, arguments);
  final bytesBuilder = BytesBuilder();
  bytesBuilder.add(Uint32List.fromList([objectId, (calclulatedSize << 16) | 3]).buffer.asUint8List());
      bytesBuilder.add(Uint32List.fromList([anchor]).buffer.asUint8List());
      try{
      innerContext.sendMessage(bytesBuilder.toBytes(), );
      }catch (e) {
        logLn("Exception in XdgPositioner::setAnchor: $e");
     return Failure(e);
      }
      return Success(Object());
    }
  
  /// set child surface gravity
  /// 
  /// 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. If the gravity is not in the ‘gravity’ enum, an
  /// invalid_input error is raised.
  /// 
  /// [gravity]: gravity direction
    Result<void,Object> setGravity(int gravity) {
      logLn("XdgPositioner::setGravity  gravity: $gravity");
  var arguments = [gravity];var argTypes = <WaylandType>[WaylandType.uint];
  var calclulatedSize  = calculateSize(argTypes, arguments);
  final bytesBuilder = BytesBuilder();
  bytesBuilder.add(Uint32List.fromList([objectId, (calclulatedSize << 16) | 4]).buffer.asUint8List());
      bytesBuilder.add(Uint32List.fromList([gravity]).buffer.asUint8List());
      try{
      innerContext.sendMessage(bytesBuilder.toBytes(), );
      }catch (e) {
        logLn("Exception in XdgPositioner::setGravity: $e");
     return Failure(e);
      }
      return Success(Object());
    }
  
  /// set the adjustment to be done when constrained
  /// 
  /// 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.
  /// 
  /// [constraint_adjustment]: bit mask of constraint adjustments
    Result<void,Object> setConstraintAdjustment(int constraintAdjustment) {
      logLn("XdgPositioner::setConstraintAdjustment  constraintAdjustment: $constraintAdjustment");
  var arguments = [constraintAdjustment];var argTypes = <WaylandType>[WaylandType.uint];
  var calclulatedSize  = calculateSize(argTypes, arguments);
  final bytesBuilder = BytesBuilder();
  bytesBuilder.add(Uint32List.fromList([objectId, (calclulatedSize << 16) | 5]).buffer.asUint8List());
      bytesBuilder.add(Uint32List.fromList([constraintAdjustment]).buffer.asUint8List());
      try{
      innerContext.sendMessage(bytesBuilder.toBytes(), );
      }catch (e) {
        logLn("Exception in XdgPositioner::setConstraintAdjustment: $e");
     return Failure(e);
      }
      return Success(Object());
    }
  
  /// set surface position offset
  /// 
  /// 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.
  /// 
  /// [x]: surface position x offset
  /// [y]: surface position y offset
    Result<void,Object> setOffset(int x, int y) {
      logLn("XdgPositioner::setOffset  x: $x y: $y");
  var arguments = [x, y];var argTypes = <WaylandType>[WaylandType.int, WaylandType.int];
  var calclulatedSize  = calculateSize(argTypes, arguments);
  final bytesBuilder = BytesBuilder();
  bytesBuilder.add(Uint32List.fromList([objectId, (calclulatedSize << 16) | 6]).buffer.asUint8List());
      bytesBuilder.add(Int32List.fromList([x]).buffer.asUint8List());
      bytesBuilder.add(Int32List.fromList([y]).buffer.asUint8List());
      try{
      innerContext.sendMessage(bytesBuilder.toBytes(), );
      }catch (e) {
        logLn("Exception in XdgPositioner::setOffset: $e");
     return Failure(e);
      }
      return Success(Object());
    }
  
  /// continuously reconstrain the surface
  /// 
  /// 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.
  /// 
    Result<void,Object> setReactive() {
      logLn("XdgPositioner::setReactive ");
  var arguments = [];var argTypes = <WaylandType>[];
  var calclulatedSize  = calculateSize(argTypes, arguments);
  final bytesBuilder = BytesBuilder();
  bytesBuilder.add(Uint32List.fromList([objectId, (calclulatedSize << 16) | 7]).buffer.asUint8List());
      try{
      innerContext.sendMessage(bytesBuilder.toBytes(), );
      }catch (e) {
        logLn("Exception in XdgPositioner::setReactive: $e");
     return Failure(e);
      }
      return Success(Object());
    }
  
  /// 
  /// 
  /// 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.
  /// 
  /// [parent_width]: future window geometry width of parent
  /// [parent_height]: future window geometry height of parent
    Result<void,Object> setParentSize(int parentWidth, int parentHeight) {
      logLn("XdgPositioner::setParentSize  parentWidth: $parentWidth parentHeight: $parentHeight");
  var arguments = [parentWidth, parentHeight];var argTypes = <WaylandType>[WaylandType.int, WaylandType.int];
  var calclulatedSize  = calculateSize(argTypes, arguments);
  final bytesBuilder = BytesBuilder();
  bytesBuilder.add(Uint32List.fromList([objectId, (calclulatedSize << 16) | 8]).buffer.asUint8List());
      bytesBuilder.add(Int32List.fromList([parentWidth]).buffer.asUint8List());
      bytesBuilder.add(Int32List.fromList([parentHeight]).buffer.asUint8List());
      try{
      innerContext.sendMessage(bytesBuilder.toBytes(), );
      }catch (e) {
        logLn("Exception in XdgPositioner::setParentSize: $e");
     return Failure(e);
      }
      return Success(Object());
    }
  
  /// set parent configure this is a response to
  /// 
  /// 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.
  /// 
  /// [serial]: serial of parent configure event
    Result<void,Object> setParentConfigure(int serial) {
      logLn("XdgPositioner::setParentConfigure  serial: $serial");
  var arguments = [serial];var argTypes = <WaylandType>[WaylandType.uint];
  var calclulatedSize  = calculateSize(argTypes, arguments);
  final bytesBuilder = BytesBuilder();
  bytesBuilder.add(Uint32List.fromList([objectId, (calclulatedSize << 16) | 9]).buffer.asUint8List());
      bytesBuilder.add(Uint32List.fromList([serial]).buffer.asUint8List());
      try{
      innerContext.sendMessage(bytesBuilder.toBytes(), );
      }catch (e) {
        logLn("Exception in XdgPositioner::setParentConfigure: $e");
     return Failure(e);
      }
      return Success(Object());
    }
  
  }
  
  /// 
  /// 
  
  enum XdgPositionerError {
  /// invalid input provided
    invalidInput("invalid_input", 0);
  const XdgPositionerError(this.enumName, this.enumValue);
  final int enumValue;
  final String enumName;
  @override
  toString(){
  return "XdgPositionerError {name: $enumName, value: $enumValue}";
  }
  }
  
  /// 
  /// 
  
  enum XdgPositionerAnchor {
  /// 
    none("none", 0),/// 
    top("top", 1),/// 
    bottom("bottom", 2),/// 
    left("left", 3),/// 
    right("right", 4),/// 
    topLeft("top_left", 5),/// 
    bottomLeft("bottom_left", 6),/// 
    topRight("top_right", 7),/// 
    bottomRight("bottom_right", 8);
  const XdgPositionerAnchor(this.enumName, this.enumValue);
  final int enumValue;
  final String enumName;
  @override
  toString(){
  return "XdgPositionerAnchor {name: $enumName, value: $enumValue}";
  }
  }
  
  /// 
  /// 
  
  enum XdgPositionerGravity {
  /// 
    none("none", 0),/// 
    top("top", 1),/// 
    bottom("bottom", 2),/// 
    left("left", 3),/// 
    right("right", 4),/// 
    topLeft("top_left", 5),/// 
    bottomLeft("bottom_left", 6),/// 
    topRight("top_right", 7),/// 
    bottomRight("bottom_right", 8);
  const XdgPositionerGravity(this.enumName, this.enumValue);
  final int enumValue;
  final String enumName;
  @override
  toString(){
  return "XdgPositionerGravity {name: $enumName, value: $enumValue}";
  }
  }
  
  /// constraint adjustments
  /// 
  /// The constraint adjustment value define ways the compositor will adjust
  /// the position of the surface, if the unadjusted position would result
  /// in the surface being partly constrained.
  /// 
  /// Whether a surface is considered 'constrained' is left to the compositor
  /// to determine. For example, the surface may be partly outside the
  /// compositor's defined 'work area', thus necessitating the child surface's
  /// position be adjusted until it is entirely inside the work area.
  /// 
  /// The adjustments can be combined, according to a defined precedence: 1)
  /// Flip, 2) Slide, 3) Resize.
  /// 
  
  enum XdgPositionerConstraintAdjustment {
  /// 
    none("none", 0),/// 
    slideX("slide_x", 1),/// 
    slideY("slide_y", 2),/// 
    flipX("flip_x", 4),/// 
    flipY("flip_y", 8),/// 
    resizeX("resize_x", 16),/// 
    resizeY("resize_y", 32);
  const XdgPositionerConstraintAdjustment(this.enumName, this.enumValue);
  final int enumValue;
  final String enumName;
  @override
  toString(){
  return "XdgPositionerConstraintAdjustment {name: $enumName, value: $enumValue}";
  }
  }
  
  
  /// 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.
  /// 
  class XdgSurfaceConfigureEvent {
  /// serial of the configure event
    final int serial;
  
    XdgSurfaceConfigureEvent(
  this.serial,
  
  );
  
  @override
  toString(){
  return "XdgSurfaceConfigureEvent (serial: $serial)";
  }
  }
  
  typedef XdgSurfaceConfigureEventHandler = void Function(XdgSurfaceConfigureEvent);
  
  
  /// desktop user interface surface base 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 initial wl_surface state such as
  /// wl_surface.preferred_buffer_scale followed by 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, i.e. the client must perform the initial commit
  /// again before attaching a buffer.
  /// 
  class XdgSurface extends Proxy implements Dispatcher{
    final Context innerContext;
    final version = 6;
  
    XdgSurface(this.innerContext) : super(innerContext.allocateClientId()){
      innerContext.register(this);
    }
  
  
  @override
  toString(){
  return "XdgSurface {name: 'xdg_surface', id: '$objectId', version: '6',}";
  }
  
  /// destroy the xdg_surface
  /// 
  /// Destroy the xdg_surface object. An xdg_surface must only be destroyed
  /// after its role object has been destroyed, otherwise
  /// a defunct_role_object error is raised.
  /// 
    Result<void,Object> destroy() {
  innerContext.unRegister(this);
      logLn("XdgSurface::destroy ");
  var arguments = [];var argTypes = <WaylandType>[];
  var calclulatedSize  = calculateSize(argTypes, arguments);
  final bytesBuilder = BytesBuilder();
  bytesBuilder.add(Uint32List.fromList([objectId, (calclulatedSize << 16) | 0]).buffer.asUint8List());
      try{
      innerContext.sendMessage(bytesBuilder.toBytes(), );
      }catch (e) {
        logLn("Exception in XdgSurface::destroy: $e");
     return Failure(e);
      }
      return Success(Object());
    }
  
  /// assign the xdg_toplevel surface role
  /// 
  /// 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.
  /// 
  /// [id]:
    Result<XdgToplevel,Object> getToplevel() {
    var id =  XdgToplevel(innerContext);
      logLn("XdgSurface::getToplevel  id: $id");
  var arguments = [id];var argTypes = <WaylandType>[WaylandType.newId];
  var calclulatedSize  = calculateSize(argTypes, arguments);
  final bytesBuilder = BytesBuilder();
  bytesBuilder.add(Uint32List.fromList([objectId, (calclulatedSize << 16) | 1]).buffer.asUint8List());
      bytesBuilder.add(Uint32List.fromList([id.objectId]).buffer.asUint8List());
      try{
      innerContext.sendMessage(bytesBuilder.toBytes(), );
      }catch (e) {
        logLn("Exception in XdgSurface::getToplevel: $e");
     return Failure(e);
      }
      return Success(id);
    }
  
  /// assign the xdg_popup surface role
  /// 
  /// 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.
  /// 
  /// [id]:
  /// [parent]:
  /// [positioner]:
    Result<XdgPopup,Object> getPopup(XdgSurface parent, XdgPositioner positioner) {
    var id =  XdgPopup(innerContext);
      logLn("XdgSurface::getPopup  id: $id parent: $parent positioner: $positioner");
  var arguments = [id, parent, positioner];var argTypes = <WaylandType>[WaylandType.newId, WaylandType.object, WaylandType.object];
  var calclulatedSize  = calculateSize(argTypes, arguments);
  final bytesBuilder = BytesBuilder();
  bytesBuilder.add(Uint32List.fromList([objectId, (calclulatedSize << 16) | 2]).buffer.asUint8List());
      bytesBuilder.add(Uint32List.fromList([id.objectId]).buffer.asUint8List());
      bytesBuilder.add(Uint32List.fromList([parent.objectId]).buffer.asUint8List());
      bytesBuilder.add(Uint32List.fromList([positioner.objectId]).buffer.asUint8List());
      try{
      innerContext.sendMessage(bytesBuilder.toBytes(), );
      }catch (e) {
        logLn("Exception in XdgSurface::getPopup: $e");
     return Failure(e);
      }
      return Success(id);
    }
  
  /// set the new window geometry
  /// 
  /// 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 state, see wl_surface.commit.
  /// 
  /// 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, and may extend outside
  /// of the wl_surface itself to mark parts of the subsurface tree as part of
  /// the window geometry.
  /// 
  /// 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.
  /// 
  /// The effective geometry will not be recalculated unless a new call to
  /// set_window_geometry is done and the new pending surface state is
  /// subsequently applied.
  /// 
  /// The width and height of the effective window geometry must be
  /// greater than zero. Setting an invalid size will raise an
  /// invalid_size error.
  /// 
  /// [x]:
  /// [y]:
  /// [width]:
  /// [height]:
    Result<void,Object> setWindowGeometry(int x, int y, int width, int height) {
      logLn("XdgSurface::setWindowGeometry  x: $x y: $y width: $width height: $height");
  var arguments = [x, y, width, height];var argTypes = <WaylandType>[WaylandType.int, WaylandType.int, WaylandType.int, WaylandType.int];
  var calclulatedSize  = calculateSize(argTypes, arguments);
  final bytesBuilder = BytesBuilder();
  bytesBuilder.add(Uint32List.fromList([objectId, (calclulatedSize << 16) | 3]).buffer.asUint8List());
      bytesBuilder.add(Int32List.fromList([x]).buffer.asUint8List());
      bytesBuilder.add(Int32List.fromList([y]).buffer.asUint8List());
      bytesBuilder.add(Int32List.fromList([width]).buffer.asUint8List());
      bytesBuilder.add(Int32List.fromList([height]).buffer.asUint8List());
      try{
      innerContext.sendMessage(bytesBuilder.toBytes(), );
      }catch (e) {
        logLn("Exception in XdgSurface::setWindowGeometry: $e");
     return Failure(e);
      }
      return Success(Object());
    }
  
  /// ack a configure event
  /// 
  /// 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.
  /// Acking a configure event that was never sent raises an invalid_serial
  /// error.
  /// 
  /// 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.
  /// 
  /// Sending an ack_configure request consumes the serial number sent with
  /// the request, as well as serial numbers sent by all configure events
  /// sent on this xdg_surface prior to the configure event referenced by
  /// the committed serial.
  /// 
  /// It is an error to issue multiple ack_configure requests referencing a
  /// serial from the same configure event, or to issue an ack_configure
  /// request referencing a serial from a configure event issued before the
  /// event identified by the last ack_configure request for the same
  /// xdg_surface. Doing so will raise an invalid_serial error.
  /// 
  /// [serial]: the serial from the configure event
    Result<void,Object> ackConfigure(int serial) {
      logLn("XdgSurface::ackConfigure  serial: $serial");
  var arguments = [serial];var argTypes = <WaylandType>[WaylandType.uint];
  var calclulatedSize  = calculateSize(argTypes, arguments);
  final bytesBuilder = BytesBuilder();
  bytesBuilder.add(Uint32List.fromList([objectId, (calclulatedSize << 16) | 4]).buffer.asUint8List());
      bytesBuilder.add(Uint32List.fromList([serial]).buffer.asUint8List());
      try{
      innerContext.sendMessage(bytesBuilder.toBytes(), );
      }catch (e) {
        logLn("Exception in XdgSurface::ackConfigure: $e");
     return Failure(e);
      }
      return Success(Object());
    }
  
  /// 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.
  /// 
  /// Event handler for Configure
  /// - [serial]: serial of the configure event
   void onConfigure(XdgSurfaceConfigureEventHandler handler) {
     _configureHandler = handler;
   }
  
   XdgSurfaceConfigureEventHandler? _configureHandler;
  
   @override
   void dispatch(int opcode, int fd, Uint8List data) {
  logLn("XdgSurface.dispatch($opcode, $fd, $data)");
     switch (opcode) {     case 0:
  
         if (_configureHandler != null) {
  var offset = 0;
  final serial = ByteData.view(data.buffer).getUint32(offset, Endian.little);
  offset += 4;
  var event = XdgSurfaceConfigureEvent(
  serial,
          );
           _configureHandler!(event);
         }
         break;
     }
   }
  }
  
  /// 
  /// 
  
  enum XdgSurfaceError {
  /// Surface was not fully constructed
    notConstructed("not_constructed", 1),/// Surface was already constructed
    alreadyConstructed("already_constructed", 2),/// Attaching a buffer to an unconfigured surface
    unconfiguredBuffer("unconfigured_buffer", 3),/// Invalid serial number when acking a configure event
    invalidSerial("invalid_serial", 4),/// Width or height was zero or negative
    invalidSize("invalid_size", 5),/// Surface was destroyed before its role object
    defunctRoleObject("defunct_role_object", 6);
  const XdgSurfaceError(this.enumName, this.enumValue);
  final int enumValue;
  final String enumName;
  @override
  toString(){
  return "XdgSurfaceError {name: $enumName, value: $enumValue}";
  }
  }
  
  
  /// 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.
  /// 
  class XdgToplevelConfigureEvent {
  /// 
    final int width;
  
  /// 
    final int height;
  
  /// 
    final List<int> states;
  
    XdgToplevelConfigureEvent(
  this.width,
  
  this.height,
  
  this.states,
  
  );
  
  @override
  toString(){
  return "XdgToplevelConfigureEvent (width: $width, height: $height, states: $states)";
  }
  }
  
  typedef XdgToplevelConfigureEventHandler = void Function(XdgToplevelConfigureEvent);
  
  /// 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.
  /// 
  class XdgToplevelCloseEvent {
    XdgToplevelCloseEvent(
  );
  
  @override
  toString(){
  return "XdgToplevelCloseEvent ()";
  }
  }
  
  typedef XdgToplevelCloseEventHandler = void Function(XdgToplevelCloseEvent);
  
  /// recommended window geometry bounds
  /// 
  /// The configure_bounds event may be sent prior to a xdg_toplevel.configure
  /// event to communicate the bounds a window geometry size is recommended
  /// to constrain to.
  /// 
  /// The passed width and height are in surface coordinate space. If width
  /// and height are 0, it means bounds is unknown and equivalent to as if no
  /// configure_bounds event was ever sent for this surface.
  /// 
  /// The bounds can for example correspond to the size of a monitor excluding
  /// any panels or other shell components, so that a surface isn't created in
  /// a way that it cannot fit.
  /// 
  /// The bounds may change at any point, and in such a case, a new
  /// xdg_toplevel.configure_bounds will be sent, followed by
  /// xdg_toplevel.configure and xdg_surface.configure.
  /// 
  class XdgToplevelConfigureBoundsEvent {
  /// 
    final int width;
  
  /// 
    final int height;
  
    XdgToplevelConfigureBoundsEvent(
  this.width,
  
  this.height,
  
  );
  
  @override
  toString(){
  return "XdgToplevelConfigureBoundsEvent (width: $width, height: $height)";
  }
  }
  
  typedef XdgToplevelConfigureBoundsEventHandler = void Function(XdgToplevelConfigureBoundsEvent);
  
  /// compositor capabilities
  /// 
  /// This event advertises the capabilities supported by the compositor. If
  /// a capability isn't supported, clients should hide or disable the UI
  /// elements that expose this functionality. For instance, if the
  /// compositor doesn't advertise support for minimized toplevels, a button
  /// triggering the set_minimized request should not be displayed.
  /// 
  /// The compositor will ignore requests it doesn't support. For instance,
  /// a compositor which doesn't advertise support for minimized will ignore
  /// set_minimized requests.
  /// 
  /// Compositors must send this event once before the first
  /// xdg_surface.configure event. When the capabilities change, compositors
  /// must send this event again and then send an xdg_surface.configure
  /// event.
  /// 
  /// The configured state should not be applied immediately. See
  /// xdg_surface.configure for details.
  /// 
  /// The capabilities are sent as an array of 32-bit unsigned integers in
  /// native endianness.
  /// 
  class XdgToplevelWmCapabilitiesEvent {
  /// array of 32-bit capabilities
    final List<int> capabilities;
  
    XdgToplevelWmCapabilitiesEvent(
  this.capabilities,
  
  );
  
  @override
  toString(){
  return "XdgToplevelWmCapabilitiesEvent (capabilities: $capabilities)";
  }
  }
  
  typedef XdgToplevelWmCapabilitiesEventHandler = void Function(XdgToplevelWmCapabilitiesEvent);
  
  
  /// toplevel surface
  /// 
  /// 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.
  /// 
  /// A xdg_toplevel by default is responsible for providing the full intended
  /// visual representation of the toplevel, which depending on the window
  /// state, may mean things like a title bar, window controls and drop shadow.
  /// 
  /// 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 performing 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.
  /// 
  class XdgToplevel extends Proxy implements Dispatcher{
    final Context innerContext;
    final version = 6;
  
    XdgToplevel(this.innerContext) : super(innerContext.allocateClientId()){
      innerContext.register(this);
    }
  
  
  @override
  toString(){
  return "XdgToplevel {name: 'xdg_toplevel', id: '$objectId', version: '6',}";
  }
  
  /// destroy the xdg_toplevel
  /// 
  /// This request destroys the role surface and unmaps the surface;
  /// see "Unmapping" behavior in interface section for details.
  /// 
    Result<void,Object> destroy() {
  innerContext.unRegister(this);
      logLn("XdgToplevel::destroy ");
  var arguments = [];var argTypes = <WaylandType>[];
  var calclulatedSize  = calculateSize(argTypes, arguments);
  final bytesBuilder = BytesBuilder();
  bytesBuilder.add(Uint32List.fromList([objectId, (calclulatedSize << 16) | 0]).buffer.asUint8List());
      try{
      innerContext.sendMessage(bytesBuilder.toBytes(), );
      }catch (e) {
        logLn("Exception in XdgToplevel::destroy: $e");
     return Failure(e);
      }
      return Success(Object());
    }
  
  /// set the parent of this surface
  /// 
  /// Set the "parent" of this surface. This surface should be stacked
  /// above the parent surface and all other ancestor surfaces.
  /// 
  /// Parent surfaces 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 surface unsets its parent. Setting
  /// a null parent for a surface which currently has no parent is a no-op.
  /// 
  /// Only mapped surfaces can have child surfaces. Setting a parent which
  /// is not mapped is equivalent to setting a null parent. If a surface
  /// becomes unmapped, its children's parent is set to the parent of
  /// the now-unmapped surface. If the now-unmapped surface has no parent,
  /// its children's parent is unset. If the now-unmapped surface becomes
  /// mapped again, its parent-child relationship is not restored.
  /// 
  /// The parent toplevel must not be one of the child toplevel's
  /// descendants, and the parent must be different from the child toplevel,
  /// otherwise the invalid_parent protocol error is raised.
  /// 
  /// [parent]:
    Result<void,Object> setParent(XdgToplevel parent) {
      logLn("XdgToplevel::setParent  parent: $parent");
  var arguments = [parent];var argTypes = <WaylandType>[WaylandType.object];
  var calclulatedSize  = calculateSize(argTypes, arguments);
  final bytesBuilder = BytesBuilder();
  bytesBuilder.add(Uint32List.fromList([objectId, (calclulatedSize << 16) | 1]).buffer.asUint8List());
      bytesBuilder.add(Uint32List.fromList([parent.objectId]).buffer.asUint8List());
      try{
      innerContext.sendMessage(bytesBuilder.toBytes(), );
      }catch (e) {
        logLn("Exception in XdgToplevel::setParent: $e");
     return Failure(e);
      }
      return Success(Object());
    }
  
  /// set surface title
  /// 
  /// 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.
  /// 
  /// [title]:
    Result<void,Object> setTitle(String title) {
      logLn("XdgToplevel::setTitle  title: $title");
  var arguments = [title];var argTypes = <WaylandType>[WaylandType.string];
  var calclulatedSize  = calculateSize(argTypes, arguments);
  final bytesBuilder = BytesBuilder();
  bytesBuilder.add(Uint32List.fromList([objectId, (calclulatedSize << 16) | 2]).buffer.asUint8List());
      final titleBytes = utf8.encode(title);
      bytesBuilder.add(Uint32List.fromList([titleBytes.length + 1]).buffer.asUint8List());
      bytesBuilder.add(titleBytes);
      bytesBuilder.add([0]); // Null terminator
      while (bytesBuilder.length % 4 != 0) { bytesBuilder.add([0]); } // Padding
      try{
      innerContext.sendMessage(bytesBuilder.toBytes(), );
      }catch (e) {
        logLn("Exception in XdgToplevel::setTitle: $e");
     return Failure(e);
      }
      return Success(Object());
    }
  
  /// set application ID
  /// 
  /// 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] https://standards.freedesktop.org/desktop-entry-spec/
  /// 
  /// [app_id]:
    Result<void,Object> setAppId(String appId) {
      logLn("XdgToplevel::setAppId  appId: $appId");
  var arguments = [appId];var argTypes = <WaylandType>[WaylandType.string];
  var calclulatedSize  = calculateSize(argTypes, arguments);
  final bytesBuilder = BytesBuilder();
  bytesBuilder.add(Uint32List.fromList([objectId, (calclulatedSize << 16) | 3]).buffer.asUint8List());
      final appIdBytes = utf8.encode(appId);
      bytesBuilder.add(Uint32List.fromList([appIdBytes.length + 1]).buffer.asUint8List());
      bytesBuilder.add(appIdBytes);
      bytesBuilder.add([0]); // Null terminator
      while (bytesBuilder.length % 4 != 0) { bytesBuilder.add([0]); } // Padding
      try{
      innerContext.sendMessage(bytesBuilder.toBytes(), );
      }catch (e) {
        logLn("Exception in XdgToplevel::setAppId: $e");
     return Failure(e);
      }
      return Success(Object());
    }
  
  /// show the window menu
  /// 
  /// 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, or even if a window menu will be drawn
  /// at all.
  /// 
  /// This request must be used in response to some sort of user action
  /// like a button press, key press, or touch down event.
  /// 
  /// [seat]: the wl_seat of the user event
  /// [serial]: the serial of the user event
  /// [x]: the x position to pop up the window menu at
  /// [y]: the y position to pop up the window menu at
    Result<void,Object> showWindowMenu(Seat seat, int serial, int x, int y) {
      logLn("XdgToplevel::showWindowMenu  seat: $seat serial: $serial x: $x y: $y");
  var arguments = [seat, serial, x, y];var argTypes = <WaylandType>[WaylandType.object, WaylandType.uint, WaylandType.int, WaylandType.int];
  var calclulatedSize  = calculateSize(argTypes, arguments);
  final bytesBuilder = BytesBuilder();
  bytesBuilder.add(Uint32List.fromList([objectId, (calclulatedSize << 16) | 4]).buffer.asUint8List());
      bytesBuilder.add(Uint32List.fromList([seat.objectId]).buffer.asUint8List());
      bytesBuilder.add(Uint32List.fromList([serial]).buffer.asUint8List());
      bytesBuilder.add(Int32List.fromList([x]).buffer.asUint8List());
      bytesBuilder.add(Int32List.fromList([y]).buffer.asUint8List());
      try{
      innerContext.sendMessage(bytesBuilder.toBytes(), );
      }catch (e) {
        logLn("Exception in XdgToplevel::showWindowMenu: $e");
     return Failure(e);
      }
      return Success(Object());
    }
  
  /// start an interactive move
  /// 
  /// 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.
  /// 
  /// [seat]: the wl_seat of the user event
  /// [serial]: the serial of the user event
    Result<void,Object> move(Seat seat, int serial) {
      logLn("XdgToplevel::move  seat: $seat serial: $serial");
  var arguments = [seat, serial];var argTypes = <WaylandType>[WaylandType.object, WaylandType.uint];
  var calclulatedSize  = calculateSize(argTypes, arguments);
  final bytesBuilder = BytesBuilder();
  bytesBuilder.add(Uint32List.fromList([objectId, (calclulatedSize << 16) | 5]).buffer.asUint8List());
      bytesBuilder.add(Uint32List.fromList([seat.objectId]).buffer.asUint8List());
      bytesBuilder.add(Uint32List.fromList([serial]).buffer.asUint8List());
      try{
      innerContext.sendMessage(bytesBuilder.toBytes(), );
      }catch (e) {
        logLn("Exception in XdgToplevel::move: $e");
     return Failure(e);
      }
      return Success(Object());
    }
  
  /// start an interactive resize
  /// 
  /// 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. Values not matching
  /// a variant of the enum will cause the invalid_resize_edge protocol error.
  /// 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.
  /// 
  /// [seat]: the wl_seat of the user event
  /// [serial]: the serial of the user event
  /// [edges]: which edge or corner is being dragged
    Result<void,Object> resize(Seat seat, int serial, int edges) {
      logLn("XdgToplevel::resize  seat: $seat serial: $serial edges: $edges");
  var arguments = [seat, serial, edges];var argTypes = <WaylandType>[WaylandType.object, WaylandType.uint, WaylandType.uint];
  var calclulatedSize  = calculateSize(argTypes, arguments);
  final bytesBuilder = BytesBuilder();
  bytesBuilder.add(Uint32List.fromList([objectId, (calclulatedSize << 16) | 6]).buffer.asUint8List());
      bytesBuilder.add(Uint32List.fromList([seat.objectId]).buffer.asUint8List());
      bytesBuilder.add(Uint32List.fromList([serial]).buffer.asUint8List());
      bytesBuilder.add(Uint32List.fromList([edges]).buffer.asUint8List());
      try{
      innerContext.sendMessage(bytesBuilder.toBytes(), );
      }catch (e) {
        logLn("Exception in XdgToplevel::resize: $e");
     return Failure(e);
      }
      return Success(Object());
    }
  
  /// set the maximum size
  /// 
  /// 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, see wl_surface.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 an invalid_size error.
  /// 
  /// The width and height must be greater than or equal to zero. Using
  /// strictly negative values for width or height will result in a
  /// invalid_size error.
  /// 
  /// [width]:
  /// [height]:
    Result<void,Object> setMaxSize(int width, int height) {
      logLn("XdgToplevel::setMaxSize  width: $width height: $height");
  var arguments = [width, height];var argTypes = <WaylandType>[WaylandType.int, WaylandType.int];
  var calclulatedSize  = calculateSize(argTypes, arguments);
  final bytesBuilder = BytesBuilder();
  bytesBuilder.add(Uint32List.fromList([objectId, (calclulatedSize << 16) | 7]).buffer.asUint8List());
      bytesBuilder.add(Int32List.fromList([width]).buffer.asUint8List());
      bytesBuilder.add(Int32List.fromList([height]).buffer.asUint8List());
      try{
      innerContext.sendMessage(bytesBuilder.toBytes(), );
      }catch (e) {
        logLn("Exception in XdgToplevel::setMaxSize: $e");
     return Failure(e);
      }
      return Success(Object());
    }
  
  /// set the minimum size
  /// 
  /// 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, see wl_surface.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 an invalid_size 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
  /// invalid_size error.
  /// 
  /// [width]:
  /// [height]:
    Result<void,Object> setMinSize(int width, int height) {
      logLn("XdgToplevel::setMinSize  width: $width height: $height");
  var arguments = [width, height];var argTypes = <WaylandType>[WaylandType.int, WaylandType.int];
  var calclulatedSize  = calculateSize(argTypes, arguments);
  final bytesBuilder = BytesBuilder();
  bytesBuilder.add(Uint32List.fromList([objectId, (calclulatedSize << 16) | 8]).buffer.asUint8List());
      bytesBuilder.add(Int32List.fromList([width]).buffer.asUint8List());
      bytesBuilder.add(Int32List.fromList([height]).buffer.asUint8List());
      try{
      innerContext.sendMessage(bytesBuilder.toBytes(), );
      }catch (e) {
        logLn("Exception in XdgToplevel::setMinSize: $e");
     return Failure(e);
      }
      return Success(Object());
    }
  
  /// maximize the window
  /// 
  /// 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.
  /// 
    Result<void,Object> setMaximized() {
      logLn("XdgToplevel::setMaximized ");
  var arguments = [];var argTypes = <WaylandType>[];
  var calclulatedSize  = calculateSize(argTypes, arguments);
  final bytesBuilder = BytesBuilder();
  bytesBuilder.add(Uint32List.fromList([objectId, (calclulatedSize << 16) | 9]).buffer.asUint8List());
      try{
      innerContext.sendMessage(bytesBuilder.toBytes(), );
      }catch (e) {
        logLn("Exception in XdgToplevel::setMaximized: $e");
     return Failure(e);
      }
      return Success(Object());
    }
  
  /// unmaximize the window
  /// 
  /// 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.
  /// 
    Result<void,Object> unsetMaximized() {
      logLn("XdgToplevel::unsetMaximized ");
  var arguments = [];var argTypes = <WaylandType>[];
  var calclulatedSize  = calculateSize(argTypes, arguments);
  final bytesBuilder = BytesBuilder();
  bytesBuilder.add(Uint32List.fromList([objectId, (calclulatedSize << 16) | 10]).buffer.asUint8List());
      try{
      innerContext.sendMessage(bytesBuilder.toBytes(), );
      }catch (e) {
        logLn("Exception in XdgToplevel::unsetMaximized: $e");
     return Failure(e);
      }
      return Success(Object());
    }
  
  /// set the window as fullscreen on an output
  /// 
  /// 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.
  /// 
  /// [output]:
    Result<void,Object> setFullscreen(Output output) {
      logLn("XdgToplevel::setFullscreen  output: $output");
  var arguments = [output];var argTypes = <WaylandType>[WaylandType.object];
  var calclulatedSize  = calculateSize(argTypes, arguments);
  final bytesBuilder = BytesBuilder();
  bytesBuilder.add(Uint32List.fromList([objectId, (calclulatedSize << 16) | 11]).buffer.asUint8List());
      bytesBuilder.add(Uint32List.fromList([output.objectId]).buffer.asUint8List());
      try{
      innerContext.sendMessage(bytesBuilder.toBytes(), );
      }catch (e) {
        logLn("Exception in XdgToplevel::setFullscreen: $e");
     return Failure(e);
      }
      return Success(Object());
    }
  
  /// unset the window as fullscreen
  /// 
  /// 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).
  /// 
    Result<void,Object> unsetFullscreen() {
      logLn("XdgToplevel::unsetFullscreen ");
  var arguments = [];var argTypes = <WaylandType>[];
  var calclulatedSize  = calculateSize(argTypes, arguments);
  final bytesBuilder = BytesBuilder();
  bytesBuilder.add(Uint32List.fromList([objectId, (calclulatedSize << 16) | 12]).buffer.asUint8List());
      try{
      innerContext.sendMessage(bytesBuilder.toBytes(), );
      }catch (e) {
        logLn("Exception in XdgToplevel::unsetFullscreen: $e");
     return Failure(e);
      }
      return Success(Object());
    }
  
  /// set the window as minimized
  /// 
  /// 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.
  /// 
    Result<void,Object> setMinimized() {
      logLn("XdgToplevel::setMinimized ");
  var arguments = [];var argTypes = <WaylandType>[];
  var calclulatedSize  = calculateSize(argTypes, arguments);
  final bytesBuilder = BytesBuilder();
  bytesBuilder.add(Uint32List.fromList([objectId, (calclulatedSize << 16) | 13]).buffer.asUint8List());
      try{
      innerContext.sendMessage(bytesBuilder.toBytes(), );
      }catch (e) {
        logLn("Exception in XdgToplevel::setMinimized: $e");
     return Failure(e);
      }
      return Success(Object());
    }
  
  /// 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.
  /// 
  /// Event handler for Configure
  /// - [width]:
  /// - [height]:
  /// - [states]:
   void onConfigure(XdgToplevelConfigureEventHandler handler) {
     _configureHandler = handler;
   }
  
   XdgToplevelConfigureEventHandler? _configureHandler;
  
  /// 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.
  /// 
  /// Event handler for Close
   void onClose(XdgToplevelCloseEventHandler handler) {
     _closeHandler = handler;
   }
  
   XdgToplevelCloseEventHandler? _closeHandler;
  
  /// recommended window geometry bounds
  /// 
  /// The configure_bounds event may be sent prior to a xdg_toplevel.configure
  /// event to communicate the bounds a window geometry size is recommended
  /// to constrain to.
  /// 
  /// The passed width and height are in surface coordinate space. If width
  /// and height are 0, it means bounds is unknown and equivalent to as if no
  /// configure_bounds event was ever sent for this surface.
  /// 
  /// The bounds can for example correspond to the size of a monitor excluding
  /// any panels or other shell components, so that a surface isn't created in
  /// a way that it cannot fit.
  /// 
  /// The bounds may change at any point, and in such a case, a new
  /// xdg_toplevel.configure_bounds will be sent, followed by
  /// xdg_toplevel.configure and xdg_surface.configure.
  /// 
  /// Event handler for ConfigureBounds
  /// - [width]:
  /// - [height]:
   void onConfigureBounds(XdgToplevelConfigureBoundsEventHandler handler) {
     _configureBoundsHandler = handler;
   }
  
   XdgToplevelConfigureBoundsEventHandler? _configureBoundsHandler;
  
  /// compositor capabilities
  /// 
  /// This event advertises the capabilities supported by the compositor. If
  /// a capability isn't supported, clients should hide or disable the UI
  /// elements that expose this functionality. For instance, if the
  /// compositor doesn't advertise support for minimized toplevels, a button
  /// triggering the set_minimized request should not be displayed.
  /// 
  /// The compositor will ignore requests it doesn't support. For instance,
  /// a compositor which doesn't advertise support for minimized will ignore
  /// set_minimized requests.
  /// 
  /// Compositors must send this event once before the first
  /// xdg_surface.configure event. When the capabilities change, compositors
  /// must send this event again and then send an xdg_surface.configure
  /// event.
  /// 
  /// The configured state should not be applied immediately. See
  /// xdg_surface.configure for details.
  /// 
  /// The capabilities are sent as an array of 32-bit unsigned integers in
  /// native endianness.
  /// 
  /// Event handler for WmCapabilities
  /// - [capabilities]: array of 32-bit capabilities
   void onWmCapabilities(XdgToplevelWmCapabilitiesEventHandler handler) {
     _wmCapabilitiesHandler = handler;
   }
  
   XdgToplevelWmCapabilitiesEventHandler? _wmCapabilitiesHandler;
  
   @override
   void dispatch(int opcode, int fd, Uint8List data) {
  logLn("XdgToplevel.dispatch($opcode, $fd, $data)");
     switch (opcode) {     case 0:
  
         if (_configureHandler != null) {
  var offset = 0;
  final width = ByteData.view(data.buffer).getInt32(offset, Endian.little);
  offset += 4;
  final height = ByteData.view(data.buffer).getInt32(offset, Endian.little);
  offset += 4;
  final states = getArray(data, offset);
  var arrayLength = ByteData.view(data.buffer).getUint32(offset, Endian.little);
  offset += 4 + arrayLength;
  while (offset % 4 != 0) { offset++; } // Padding
  var event = XdgToplevelConfigureEvent(
  width,
  height,
  states,
          );
           _configureHandler!(event);
         }
         break;
       case 1:
  
         if (_closeHandler != null) {
           _closeHandler!(XdgToplevelCloseEvent());
         }
         break;
       case 2:
  
         if (_configureBoundsHandler != null) {
  var offset = 0;
  final width = ByteData.view(data.buffer).getInt32(offset, Endian.little);
  offset += 4;
  final height = ByteData.view(data.buffer).getInt32(offset, Endian.little);
  offset += 4;
  var event = XdgToplevelConfigureBoundsEvent(
  width,
  height,
          );
           _configureBoundsHandler!(event);
         }
         break;
       case 3:
  
         if (_wmCapabilitiesHandler != null) {
  var offset = 0;
  final capabilities = getArray(data, offset);
  var arrayLength = ByteData.view(data.buffer).getUint32(offset, Endian.little);
  offset += 4 + arrayLength;
  while (offset % 4 != 0) { offset++; } // Padding
  var event = XdgToplevelWmCapabilitiesEvent(
  capabilities,
          );
           _wmCapabilitiesHandler!(event);
         }
         break;
     }
   }
  }
  
  /// 
  /// 
  
  enum XdgToplevelError {
  /// provided value is
  /// not a valid variant of the resize_edge enum
    invalidResizeEdge("invalid_resize_edge", 0),/// invalid parent toplevel
    invalidParent("invalid_parent", 1),/// client provided an invalid min or max size
    invalidSize("invalid_size", 2);
  const XdgToplevelError(this.enumName, this.enumValue);
  final int enumValue;
  final String enumName;
  @override
  toString(){
  return "XdgToplevelError {name: $enumName, value: $enumValue}";
  }
  }
  
  /// edge values for resizing
  /// 
  /// These values are used to indicate which edge of a surface
  /// is being dragged in a resize operation.
  /// 
  
  enum XdgToplevelResizeEdge {
  /// 
    none("none", 0),/// 
    top("top", 1),/// 
    bottom("bottom", 2),/// 
    left("left", 4),/// 
    topLeft("top_left", 5),/// 
    bottomLeft("bottom_left", 6),/// 
    right("right", 8),/// 
    topRight("top_right", 9),/// 
    bottomRight("bottom_right", 10);
  const XdgToplevelResizeEdge(this.enumName, this.enumValue);
  final int enumValue;
  final String enumName;
  @override
  toString(){
  return "XdgToplevelResizeEdge {name: $enumName, value: $enumValue}";
  }
  }
  
  /// types of state on the surface
  /// 
  /// The different state values used on the surface. This is designed for
  /// state values like maximized, fullscreen. It is paired with the
  /// configure event to ensure that both the client and the compositor
  /// setting the state can be synchronized.
  /// 
  /// States set in this way are double-buffered, see wl_surface.commit.
  /// 
  
  enum XdgToplevelState {
  /// the surface is maximized
    maximized("maximized", 1),/// the surface is fullscreen
    fullscreen("fullscreen", 2),/// the surface is being resized
    resizing("resizing", 3),/// the surface is now activated
    activated("activated", 4),/// 
    tiledLeft("tiled_left", 5),/// 
    tiledRight("tiled_right", 6),/// 
    tiledTop("tiled_top", 7),/// 
    tiledBottom("tiled_bottom", 8),/// 
    suspended("suspended", 9);
  const XdgToplevelState(this.enumName, this.enumValue);
  final int enumValue;
  final String enumName;
  @override
  toString(){
  return "XdgToplevelState {name: $enumName, value: $enumValue}";
  }
  }
  
  /// 
  /// 
  
  enum XdgToplevelWmCapabilities {
  /// show_window_menu is available
    windowMenu("window_menu", 1),/// set_maximized and unset_maximized are available
    maximize("maximize", 2),/// set_fullscreen and unset_fullscreen are available
    fullscreen("fullscreen", 3),/// set_minimized is available
    minimize("minimize", 4);
  const XdgToplevelWmCapabilities(this.enumName, this.enumValue);
  final int enumValue;
  final String enumName;
  @override
  toString(){
  return "XdgToplevelWmCapabilities {name: $enumName, value: $enumValue}";
  }
  }
  
  
  /// 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.
  /// 
  class XdgPopupConfigureEvent {
  /// x position relative to parent surface window geometry
    final int x;
  
  /// y position relative to parent surface window geometry
    final int y;
  
  /// window geometry width
    final int width;
  
  /// window geometry height
    final int height;
  
    XdgPopupConfigureEvent(
  this.x,
  
  this.y,
  
  this.width,
  
  this.height,
  
  );
  
  @override
  toString(){
  return "XdgPopupConfigureEvent (x: $x, y: $y, width: $width, height: $height)";
  }
  }
  
  typedef XdgPopupConfigureEventHandler = void Function(XdgPopupConfigureEvent);
  
  /// 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.
  /// 
  class XdgPopupPopupDoneEvent {
    XdgPopupPopupDoneEvent(
  );
  
  @override
  toString(){
  return "XdgPopupPopupDoneEvent ()";
  }
  }
  
  typedef XdgPopupPopupDoneEventHandler = void Function(XdgPopupPopupDoneEvent);
  
  /// 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.
  /// 
  class XdgPopupRepositionedEvent {
  /// reposition request token
    final int token;
  
    XdgPopupRepositionedEvent(
  this.token,
  
  );
  
  @override
  toString(){
  return "XdgPopupRepositionedEvent (token: $token)";
  }
  }
  
  typedef XdgPopupRepositionedEventHandler = void Function(XdgPopupRepositionedEvent);
  
  
  /// short-lived, popup surfaces for menus
  /// 
  /// 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.
  /// 
  class XdgPopup extends Proxy implements Dispatcher{
    final Context innerContext;
    final version = 6;
  
    XdgPopup(this.innerContext) : super(innerContext.allocateClientId()){
      innerContext.register(this);
    }
  
  
  @override
  toString(){
  return "XdgPopup {name: 'xdg_popup', id: '$objectId', version: '6',}";
  }
  
  /// remove xdg_popup interface
  /// 
  /// 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, the
  /// xdg_wm_base.not_the_topmost_popup protocol error will be sent.
  /// 
    Result<void,Object> destroy() {
  innerContext.unRegister(this);
      logLn("XdgPopup::destroy ");
  var arguments = [];var argTypes = <WaylandType>[];
  var calclulatedSize  = calculateSize(argTypes, arguments);
  final bytesBuilder = BytesBuilder();
  bytesBuilder.add(Uint32List.fromList([objectId, (calclulatedSize << 16) | 0]).buffer.asUint8List());
      try{
      innerContext.sendMessage(bytesBuilder.toBytes(), );
      }catch (e) {
        logLn("Exception in XdgPopup::destroy: $e");
     return Failure(e);
      }
      return Success(Object());
    }
  
  /// make the popup take an explicit grab
  /// 
  /// 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.
  /// 
  /// 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.
  /// 
  /// [seat]: the wl_seat of the user event
  /// [serial]: the serial of the user event
    Result<void,Object> grab(Seat seat, int serial) {
      logLn("XdgPopup::grab  seat: $seat serial: $serial");
  var arguments = [seat, serial];var argTypes = <WaylandType>[WaylandType.object, WaylandType.uint];
  var calclulatedSize  = calculateSize(argTypes, arguments);
  final bytesBuilder = BytesBuilder();
  bytesBuilder.add(Uint32List.fromList([objectId, (calclulatedSize << 16) | 1]).buffer.asUint8List());
      bytesBuilder.add(Uint32List.fromList([seat.objectId]).buffer.asUint8List());
      bytesBuilder.add(Uint32List.fromList([serial]).buffer.asUint8List());
      try{
      innerContext.sendMessage(bytesBuilder.toBytes(), );
      }catch (e) {
        logLn("Exception in XdgPopup::grab: $e");
     return Failure(e);
      }
      return Success(Object());
    }
  
  /// recalculate the popup's location
  /// 
  /// 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.
  /// 
  /// [positioner]:
  /// [token]: reposition request token
    Result<void,Object> reposition(XdgPositioner positioner, int token) {
      logLn("XdgPopup::reposition  positioner: $positioner token: $token");
  var arguments = [positioner, token];var argTypes = <WaylandType>[WaylandType.object, WaylandType.uint];
  var calclulatedSize  = calculateSize(argTypes, arguments);
  final bytesBuilder = BytesBuilder();
  bytesBuilder.add(Uint32List.fromList([objectId, (calclulatedSize << 16) | 2]).buffer.asUint8List());
      bytesBuilder.add(Uint32List.fromList([positioner.objectId]).buffer.asUint8List());
      bytesBuilder.add(Uint32List.fromList([token]).buffer.asUint8List());
      try{
      innerContext.sendMessage(bytesBuilder.toBytes(), );
      }catch (e) {
        logLn("Exception in XdgPopup::reposition: $e");
     return Failure(e);
      }
      return Success(Object());
    }
  
  /// 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.
  /// 
  /// Event handler for Configure
  /// - [x]: x position relative to parent surface window geometry
  /// - [y]: y position relative to parent surface window geometry
  /// - [width]: window geometry width
  /// - [height]: window geometry height
   void onConfigure(XdgPopupConfigureEventHandler handler) {
     _configureHandler = handler;
   }
  
   XdgPopupConfigureEventHandler? _configureHandler;
  
  /// 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.
  /// 
  /// Event handler for PopupDone
   void onPopupDone(XdgPopupPopupDoneEventHandler handler) {
     _popupDoneHandler = handler;
   }
  
   XdgPopupPopupDoneEventHandler? _popupDoneHandler;
  
  /// 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.
  /// 
  /// Event handler for Repositioned
  /// - [token]: reposition request token
   void onRepositioned(XdgPopupRepositionedEventHandler handler) {
     _repositionedHandler = handler;
   }
  
   XdgPopupRepositionedEventHandler? _repositionedHandler;
  
   @override
   void dispatch(int opcode, int fd, Uint8List data) {
  logLn("XdgPopup.dispatch($opcode, $fd, $data)");
     switch (opcode) {     case 0:
  
         if (_configureHandler != null) {
  var offset = 0;
  final x = ByteData.view(data.buffer).getInt32(offset, Endian.little);
  offset += 4;
  final y = ByteData.view(data.buffer).getInt32(offset, Endian.little);
  offset += 4;
  final width = ByteData.view(data.buffer).getInt32(offset, Endian.little);
  offset += 4;
  final height = ByteData.view(data.buffer).getInt32(offset, Endian.little);
  offset += 4;
  var event = XdgPopupConfigureEvent(
  x,
  y,
  width,
  height,
          );
           _configureHandler!(event);
         }
         break;
       case 1:
  
         if (_popupDoneHandler != null) {
           _popupDoneHandler!(XdgPopupPopupDoneEvent());
         }
         break;
       case 2:
  
         if (_repositionedHandler != null) {
  var offset = 0;
  final token = ByteData.view(data.buffer).getUint32(offset, Endian.little);
  offset += 4;
  var event = XdgPopupRepositionedEvent(
  token,
          );
           _repositionedHandler!(event);
         }
         break;
     }
   }
  }
  
  /// 
  /// 
  
  enum XdgPopupError {
  /// tried to grab after being mapped
    invalidGrab("invalid_grab", 0);
  const XdgPopupError(this.enumName, this.enumValue);
  final int enumValue;
  final String enumName;
  @override
  toString(){
  return "XdgPopupError {name: $enumName, value: $enumValue}";
  }
  }
  
  