gtk/auto/

menu.rs

// This file was generated by gir (https://github.com/gtk-rs/gir)
// from gir-files (https://github.com/gtk-rs/gir-files)
// DO NOT EDIT

use crate::{
    AccelGroup, Align, Buildable, Container, MenuItem, MenuShell, ResizeMode, ScrollType, Widget,
    ffi,
};
use glib::{
    object::ObjectType as _,
    prelude::*,
    signal::{SignalHandlerId, connect_raw},
    translate::*,
};
use std::boxed::Box as Box_;

glib::wrapper! {
    /// A [`Menu`][crate::Menu] is a [`MenuShell`][crate::MenuShell] that implements a drop down menu
    /// consisting of a list of [`MenuItem`][crate::MenuItem] objects which can be navigated
    /// and activated by the user to perform application functions.
    ///
    /// A [`Menu`][crate::Menu] is most commonly dropped down by activating a
    /// [`MenuItem`][crate::MenuItem] in a [`MenuBar`][crate::MenuBar] or popped up by activating a
    /// [`MenuItem`][crate::MenuItem] in another [`Menu`][crate::Menu].
    ///
    /// A [`Menu`][crate::Menu] can also be popped up by activating a [`ComboBox`][crate::ComboBox].
    /// Other composite widgets such as the [`Notebook`][crate::Notebook] can pop up a
    /// [`Menu`][crate::Menu] as well.
    ///
    /// Applications can display a [`Menu`][crate::Menu] as a popup menu by calling the
    /// `gtk_menu_popup()` function. The example below shows how an application
    /// can pop up a menu when the 3rd mouse button is pressed.
    ///
    /// ## Connecting the popup signal handler.
    ///
    ///
    ///
    /// **⚠️ The following code is in C ⚠️**
    ///
    /// ```C
    ///   // connect our handler which will popup the menu
    ///   g_signal_connect_swapped (window, "button_press_event",
    /// G_CALLBACK (my_popup_handler), menu);
    /// ```
    ///
    /// ## Signal handler which displays a popup menu.
    ///
    ///
    ///
    /// **⚠️ The following code is in C ⚠️**
    ///
    /// ```C
    /// static gint
    /// my_popup_handler (GtkWidget *widget, GdkEvent *event)
    /// {
    ///   GtkMenu *menu;
    ///   GdkEventButton *event_button;
    ///
    ///   g_return_val_if_fail (widget != NULL, FALSE);
    ///   g_return_val_if_fail (GTK_IS_MENU (widget), FALSE);
    ///   g_return_val_if_fail (event != NULL, FALSE);
    ///
    ///   // The "widget" is the menu that was supplied when
    ///   // g_signal_connect_swapped() was called.
    ///   menu = GTK_MENU (widget);
    ///
    ///   if (event->type == GDK_BUTTON_PRESS)
    ///     {
    ///       event_button = (GdkEventButton *) event;
    ///       if (event_button->button == GDK_BUTTON_SECONDARY)
    ///         {
    ///           gtk_menu_popup (menu, NULL, NULL, NULL, NULL,
    ///                           event_button->button, event_button->time);
    ///           return TRUE;
    ///         }
    ///     }
    ///
    ///   return FALSE;
    /// }
    /// ```
    ///
    /// # CSS nodes
    ///
    ///
    ///
    /// **⚠️ The following code is in plain ⚠️**
    ///
    /// ```plain
    /// menu
    /// ├── arrow.top
    /// ├── <child>
    /// ┊
    /// ├── <child>
    /// ╰── arrow.bottom
    /// ```
    ///
    /// The main CSS node of GtkMenu has name menu, and there are two subnodes
    /// with name arrow, for scrolling menu arrows. These subnodes get the
    /// .top and .bottom style classes.
    ///
    /// ## Properties
    ///
    ///
    /// #### `accel-group`
    ///  The accel group holding accelerators for the menu.
    ///
    /// Readable | Writable
    ///
    ///
    /// #### `accel-path`
    ///  An accel path used to conveniently construct accel paths of child items.
    ///
    /// Readable | Writable
    ///
    ///
    /// #### `active`
    ///  The index of the currently selected menu item, or -1 if no
    /// menu item is selected.
    ///
    /// Readable | Writable
    ///
    ///
    /// #### `anchor-hints`
    ///  Positioning hints for aligning the menu relative to a rectangle.
    ///
    /// These hints determine how the menu should be positioned in the case that
    /// the menu would fall off-screen if placed in its ideal position.
    ///
    /// ![](popup-flip.png)
    ///
    /// For example, [`gdk::AnchorHints::FLIP_Y`][crate::gdk::AnchorHints::FLIP_Y] will replace [`gdk::Gravity::NorthWest`][crate::gdk::Gravity::NorthWest] with
    /// [`gdk::Gravity::SouthWest`][crate::gdk::Gravity::SouthWest] and vice versa if the menu extends beyond the
    /// bottom edge of the monitor.
    ///
    /// See gtk_menu_popup_at_rect (), gtk_menu_popup_at_widget (),
    /// gtk_menu_popup_at_pointer (), [`rect-anchor-dx`][struct@crate::Menu#rect-anchor-dx],
    /// [`rect-anchor-dy`][struct@crate::Menu#rect-anchor-dy], [`menu-type-hint`][struct@crate::Menu#menu-type-hint], and [`popped-up`][struct@crate::Menu#popped-up].
    ///
    /// Readable | Writable | Construct
    ///
    ///
    /// #### `attach-widget`
    ///  The widget the menu is attached to. Setting this property attaches
    /// the menu without a `GtkMenuDetachFunc`. If you need to use a detacher,
    /// use `gtk_menu_attach_to_widget()` directly.
    ///
    /// Readable | Writable
    ///
    ///
    /// #### `menu-type-hint`
    ///  The [`gdk::WindowTypeHint`][crate::gdk::WindowTypeHint] to use for the menu's [`gdk::Window`][crate::gdk::Window].
    ///
    /// See gtk_menu_popup_at_rect (), gtk_menu_popup_at_widget (),
    /// gtk_menu_popup_at_pointer (), [`anchor-hints`][struct@crate::Menu#anchor-hints],
    /// [`rect-anchor-dx`][struct@crate::Menu#rect-anchor-dx], [`rect-anchor-dy`][struct@crate::Menu#rect-anchor-dy], and [`popped-up`][struct@crate::Menu#popped-up].
    ///
    /// Readable | Writable | Construct
    ///
    ///
    /// #### `monitor`
    ///  The monitor the menu will be popped up on.
    ///
    /// Readable | Writable
    ///
    ///
    /// #### `rect-anchor-dx`
    ///  Horizontal offset to apply to the menu, i.e. the rectangle or widget
    /// anchor.
    ///
    /// See gtk_menu_popup_at_rect (), gtk_menu_popup_at_widget (),
    /// gtk_menu_popup_at_pointer (), [`anchor-hints`][struct@crate::Menu#anchor-hints],
    /// [`rect-anchor-dy`][struct@crate::Menu#rect-anchor-dy], [`menu-type-hint`][struct@crate::Menu#menu-type-hint], and [`popped-up`][struct@crate::Menu#popped-up].
    ///
    /// Readable | Writable | Construct
    ///
    ///
    /// #### `rect-anchor-dy`
    ///  Vertical offset to apply to the menu, i.e. the rectangle or widget anchor.
    ///
    /// See gtk_menu_popup_at_rect (), gtk_menu_popup_at_widget (),
    /// gtk_menu_popup_at_pointer (), [`anchor-hints`][struct@crate::Menu#anchor-hints],
    /// [`rect-anchor-dx`][struct@crate::Menu#rect-anchor-dx], [`menu-type-hint`][struct@crate::Menu#menu-type-hint], and [`popped-up`][struct@crate::Menu#popped-up].
    ///
    /// Readable | Writable | Construct
    ///
    ///
    /// #### `reserve-toggle-size`
    ///  A boolean that indicates whether the menu reserves space for
    /// toggles and icons, regardless of their actual presence.
    ///
    /// This property should only be changed from its default value
    /// for special-purposes such as tabular menus. Regular menus that
    /// are connected to a menu bar or context menus should reserve
    /// toggle space for consistency.
    ///
    /// Readable | Writable
    ///
    ///
    /// #### `tearoff-state`
    ///  A boolean that indicates whether the menu is torn-off.
    ///
    /// Readable | Writable
    ///
    ///
    /// #### `tearoff-title`
    ///  A title that may be displayed by the window manager when this
    /// menu is torn-off.
    ///
    /// Readable | Writable
    /// <details><summary><h4>MenuShell</h4></summary>
    ///
    ///
    /// #### `take-focus`
    ///  A boolean that determines whether the menu and its submenus grab the
    /// keyboard focus. See [`MenuShellExt::set_take_focus()`][crate::prelude::MenuShellExt::set_take_focus()] and
    /// [`MenuShellExt::takes_focus()`][crate::prelude::MenuShellExt::takes_focus()].
    ///
    /// Readable | Writable
    /// </details>
    /// <details><summary><h4>Container</h4></summary>
    ///
    ///
    /// #### `border-width`
    ///  Readable | Writable
    ///
    ///
    /// #### `child`
    ///  Writable
    ///
    ///
    /// #### `resize-mode`
    ///  Readable | Writable
    /// </details>
    /// <details><summary><h4>Widget</h4></summary>
    ///
    ///
    /// #### `app-paintable`
    ///  Readable | Writable
    ///
    ///
    /// #### `can-default`
    ///  Readable | Writable
    ///
    ///
    /// #### `can-focus`
    ///  Readable | Writable
    ///
    ///
    /// #### `composite-child`
    ///  Readable
    ///
    ///
    /// #### `double-buffered`
    ///  Whether the widget is double buffered.
    ///
    /// Readable | Writable
    ///
    ///
    /// #### `events`
    ///  Readable | Writable
    ///
    ///
    /// #### `expand`
    ///  Whether to expand in both directions. Setting this sets both [`hexpand`][struct@crate::Widget#hexpand] and [`vexpand`][struct@crate::Widget#vexpand]
    ///
    /// Readable | Writable
    ///
    ///
    /// #### `focus-on-click`
    ///  Whether the widget should grab focus when it is clicked with the mouse.
    ///
    /// This property is only relevant for widgets that can take focus.
    ///
    /// Before 3.20, several widgets (GtkButton, GtkFileChooserButton,
    /// GtkComboBox) implemented this property individually.
    ///
    /// Readable | Writable
    ///
    ///
    /// #### `halign`
    ///  How to distribute horizontal space if widget gets extra space, see [`Align`][crate::Align]
    ///
    /// Readable | Writable
    ///
    ///
    /// #### `has-default`
    ///  Readable | Writable
    ///
    ///
    /// #### `has-focus`
    ///  Readable | Writable
    ///
    ///
    /// #### `has-tooltip`
    ///  Enables or disables the emission of [`query-tooltip`][struct@crate::Widget#query-tooltip] on `widget`.
    /// A value of [`true`] indicates that `widget` can have a tooltip, in this case
    /// the widget will be queried using [`query-tooltip`][struct@crate::Widget#query-tooltip] to determine
    /// whether it will provide a tooltip or not.
    ///
    /// Note that setting this property to [`true`] for the first time will change
    /// the event masks of the GdkWindows of this widget to include leave-notify
    /// and motion-notify events. This cannot and will not be undone when the
    /// property is set to [`false`] again.
    ///
    /// Readable | Writable
    ///
    ///
    /// #### `height-request`
    ///  Readable | Writable
    ///
    ///
    /// #### `hexpand`
    ///  Whether to expand horizontally. See [`WidgetExt::set_hexpand()`][crate::prelude::WidgetExt::set_hexpand()].
    ///
    /// Readable | Writable
    ///
    ///
    /// #### `hexpand-set`
    ///  Whether to use the [`hexpand`][struct@crate::Widget#hexpand] property. See [`WidgetExt::is_hexpand_set()`][crate::prelude::WidgetExt::is_hexpand_set()].
    ///
    /// Readable | Writable
    ///
    ///
    /// #### `is-focus`
    ///  Readable | Writable
    ///
    ///
    /// #### `margin`
    ///  Sets all four sides' margin at once. If read, returns max
    /// margin on any side.
    ///
    /// Readable | Writable
    ///
    ///
    /// #### `margin-bottom`
    ///  Margin on bottom side of widget.
    ///
    /// This property adds margin outside of the widget's normal size
    /// request, the margin will be added in addition to the size from
    /// [`WidgetExt::set_size_request()`][crate::prelude::WidgetExt::set_size_request()] for example.
    ///
    /// Readable | Writable
    ///
    ///
    /// #### `margin-end`
    ///  Margin on end of widget, horizontally. This property supports
    /// left-to-right and right-to-left text directions.
    ///
    /// This property adds margin outside of the widget's normal size
    /// request, the margin will be added in addition to the size from
    /// [`WidgetExt::set_size_request()`][crate::prelude::WidgetExt::set_size_request()] for example.
    ///
    /// Readable | Writable
    ///
    ///
    /// #### `margin-left`
    ///  Margin on left side of widget.
    ///
    /// This property adds margin outside of the widget's normal size
    /// request, the margin will be added in addition to the size from
    /// [`WidgetExt::set_size_request()`][crate::prelude::WidgetExt::set_size_request()] for example.
    ///
    /// Readable | Writable
    ///
    ///
    /// #### `margin-right`
    ///  Margin on right side of widget.
    ///
    /// This property adds margin outside of the widget's normal size
    /// request, the margin will be added in addition to the size from
    /// [`WidgetExt::set_size_request()`][crate::prelude::WidgetExt::set_size_request()] for example.
    ///
    /// Readable | Writable
    ///
    ///
    /// #### `margin-start`
    ///  Margin on start of widget, horizontally. This property supports
    /// left-to-right and right-to-left text directions.
    ///
    /// This property adds margin outside of the widget's normal size
    /// request, the margin will be added in addition to the size from
    /// [`WidgetExt::set_size_request()`][crate::prelude::WidgetExt::set_size_request()] for example.
    ///
    /// Readable | Writable
    ///
    ///
    /// #### `margin-top`
    ///  Margin on top side of widget.
    ///
    /// This property adds margin outside of the widget's normal size
    /// request, the margin will be added in addition to the size from
    /// [`WidgetExt::set_size_request()`][crate::prelude::WidgetExt::set_size_request()] for example.
    ///
    /// Readable | Writable
    ///
    ///
    /// #### `name`
    ///  Readable | Writable
    ///
    ///
    /// #### `no-show-all`
    ///  Readable | Writable
    ///
    ///
    /// #### `opacity`
    ///  The requested opacity of the widget. See [`WidgetExt::set_opacity()`][crate::prelude::WidgetExt::set_opacity()] for
    /// more details about window opacity.
    ///
    /// Before 3.8 this was only available in GtkWindow
    ///
    /// Readable | Writable
    ///
    ///
    /// #### `parent`
    ///  Readable | Writable
    ///
    ///
    /// #### `receives-default`
    ///  Readable | Writable
    ///
    ///
    /// #### `scale-factor`
    ///  The scale factor of the widget. See [`WidgetExt::scale_factor()`][crate::prelude::WidgetExt::scale_factor()] for
    /// more details about widget scaling.
    ///
    /// Readable
    ///
    ///
    /// #### `sensitive`
    ///  Readable | Writable
    ///
    ///
    /// #### `style`
    ///  The style of the widget, which contains information about how it will look (colors, etc).
    ///
    /// Readable | Writable
    ///
    ///
    /// #### `tooltip-markup`
    ///  Sets the text of tooltip to be the given string, which is marked up
    /// with the [Pango text markup language][PangoMarkupFormat].
    /// Also see [`Tooltip::set_markup()`][crate::Tooltip::set_markup()].
    ///
    /// This is a convenience property which will take care of getting the
    /// tooltip shown if the given string is not [`None`]: [`has-tooltip`][struct@crate::Widget#has-tooltip]
    /// will automatically be set to [`true`] and there will be taken care of
    /// [`query-tooltip`][struct@crate::Widget#query-tooltip] in the default signal handler.
    ///
    /// Note that if both [`tooltip-text`][struct@crate::Widget#tooltip-text] and [`tooltip-markup`][struct@crate::Widget#tooltip-markup]
    /// are set, the last one wins.
    ///
    /// Readable | Writable
    ///
    ///
    /// #### `tooltip-text`
    ///  Sets the text of tooltip to be the given string.
    ///
    /// Also see [`Tooltip::set_text()`][crate::Tooltip::set_text()].
    ///
    /// This is a convenience property which will take care of getting the
    /// tooltip shown if the given string is not [`None`]: [`has-tooltip`][struct@crate::Widget#has-tooltip]
    /// will automatically be set to [`true`] and there will be taken care of
    /// [`query-tooltip`][struct@crate::Widget#query-tooltip] in the default signal handler.
    ///
    /// Note that if both [`tooltip-text`][struct@crate::Widget#tooltip-text] and [`tooltip-markup`][struct@crate::Widget#tooltip-markup]
    /// are set, the last one wins.
    ///
    /// Readable | Writable
    ///
    ///
    /// #### `valign`
    ///  How to distribute vertical space if widget gets extra space, see [`Align`][crate::Align]
    ///
    /// Readable | Writable
    ///
    ///
    /// #### `vexpand`
    ///  Whether to expand vertically. See [`WidgetExt::set_vexpand()`][crate::prelude::WidgetExt::set_vexpand()].
    ///
    /// Readable | Writable
    ///
    ///
    /// #### `vexpand-set`
    ///  Whether to use the [`vexpand`][struct@crate::Widget#vexpand] property. See [`WidgetExt::is_vexpand_set()`][crate::prelude::WidgetExt::is_vexpand_set()].
    ///
    /// Readable | Writable
    ///
    ///
    /// #### `visible`
    ///  Readable | Writable
    ///
    ///
    /// #### `width-request`
    ///  Readable | Writable
    ///
    ///
    /// #### `window`
    ///  The widget's window if it is realized, [`None`] otherwise.
    ///
    /// Readable
    /// </details>
    ///
    /// ## Signals
    ///
    ///
    /// #### `move-scroll`
    ///  Action
    ///
    ///
    /// #### `popped-up`
    ///  Emitted when the position of `menu` is finalized after being popped up
    /// using gtk_menu_popup_at_rect (), gtk_menu_popup_at_widget (), or
    /// gtk_menu_popup_at_pointer ().
    ///
    /// `menu` might be flipped over the anchor rectangle in order to keep it
    /// on-screen, in which case `flipped_x` and `flipped_y` will be set to [`true`]
    /// accordingly.
    ///
    /// `flipped_rect` is the ideal position of `menu` after any possible flipping,
    /// but before any possible sliding. `final_rect` is `flipped_rect`, but possibly
    /// translated in the case that flipping is still ineffective in keeping `menu`
    /// on-screen.
    ///
    /// ![](popup-slide.png)
    ///
    /// The blue menu is `menu`'s ideal position, the green menu is `flipped_rect`,
    /// and the red menu is `final_rect`.
    ///
    /// See gtk_menu_popup_at_rect (), gtk_menu_popup_at_widget (),
    /// gtk_menu_popup_at_pointer (), [`anchor-hints`][struct@crate::Menu#anchor-hints],
    /// [`rect-anchor-dx`][struct@crate::Menu#rect-anchor-dx], [`rect-anchor-dy`][struct@crate::Menu#rect-anchor-dy], and
    /// [`menu-type-hint`][struct@crate::Menu#menu-type-hint].
    ///
    ///
    /// <details><summary><h4>MenuShell</h4></summary>
    ///
    ///
    /// #### `activate-current`
    ///  An action signal that activates the current menu item within
    /// the menu shell.
    ///
    /// Action
    ///
    ///
    /// #### `cancel`
    ///  An action signal which cancels the selection within the menu shell.
    /// Causes the [`selection-done`][struct@crate::MenuShell#selection-done] signal to be emitted.
    ///
    /// Action
    ///
    ///
    /// #### `cycle-focus`
    ///  A keybinding signal which moves the focus in the
    /// given `direction`.
    ///
    /// Action
    ///
    ///
    /// #### `deactivate`
    ///  This signal is emitted when a menu shell is deactivated.
    ///
    ///
    ///
    ///
    /// #### `insert`
    ///  The ::insert signal is emitted when a new [`MenuItem`][crate::MenuItem] is added to
    /// a [`MenuShell`][crate::MenuShell]. A separate signal is used instead of
    /// GtkContainer::add because of the need for an additional position
    /// parameter.
    ///
    /// The inverse of this signal is the GtkContainer::removed signal.
    ///
    ///
    ///
    ///
    /// #### `move-current`
    ///  An keybinding signal which moves the current menu item
    /// in the direction specified by `direction`.
    ///
    /// Action
    ///
    ///
    /// #### `move-selected`
    ///  The ::move-selected signal is emitted to move the selection to
    /// another item.
    ///
    ///
    ///
    ///
    /// #### `selection-done`
    ///  This signal is emitted when a selection has been
    /// completed within a menu shell.
    ///
    ///
    /// </details>
    /// <details><summary><h4>Container</h4></summary>
    ///
    ///
    /// #### `add`
    ///
    ///
    ///
    /// #### `check-resize`
    ///
    ///
    ///
    /// #### `remove`
    ///
    ///
    ///
    /// #### `set-focus-child`
    ///
    /// </details>
    /// <details><summary><h4>Widget</h4></summary>
    ///
    ///
    /// #### `accel-closures-changed`
    ///
    ///
    ///
    /// #### `button-press-event`
    ///  The ::button-press-event signal will be emitted when a button
    /// (typically from a mouse) is pressed.
    ///
    /// To receive this signal, the [`gdk::Window`][crate::gdk::Window] associated to the
    /// widget needs to enable the [`gdk::EventMask::BUTTON_PRESS_MASK`][crate::gdk::EventMask::BUTTON_PRESS_MASK] mask.
    ///
    /// This signal will be sent to the grab widget if there is one.
    ///
    ///
    ///
    ///
    /// #### `button-release-event`
    ///  The ::button-release-event signal will be emitted when a button
    /// (typically from a mouse) is released.
    ///
    /// To receive this signal, the [`gdk::Window`][crate::gdk::Window] associated to the
    /// widget needs to enable the [`gdk::EventMask::BUTTON_RELEASE_MASK`][crate::gdk::EventMask::BUTTON_RELEASE_MASK] mask.
    ///
    /// This signal will be sent to the grab widget if there is one.
    ///
    ///
    ///
    ///
    /// #### `can-activate-accel`
    ///  Determines whether an accelerator that activates the signal
    /// identified by `signal_id` can currently be activated.
    /// This signal is present to allow applications and derived
    /// widgets to override the default [`Widget`][crate::Widget] handling
    /// for determining whether an accelerator can be activated.
    ///
    ///
    ///
    ///
    /// #### `child-notify`
    ///  The ::child-notify signal is emitted for each
    /// [child property][child-properties] that has
    /// changed on an object. The signal's detail holds the property name.
    ///
    /// Detailed
    ///
    ///
    /// #### `composited-changed`
    ///  The ::composited-changed signal is emitted when the composited
    /// status of `widgets` screen changes.
    /// See [`Screen::is_composited()`][crate::gdk::Screen::is_composited()].
    ///
    /// Action
    ///
    ///
    /// #### `configure-event`
    ///  The ::configure-event signal will be emitted when the size, position or
    /// stacking of the `widget`'s window has changed.
    ///
    /// To receive this signal, the [`gdk::Window`][crate::gdk::Window] associated to the widget needs
    /// to enable the [`gdk::EventMask::STRUCTURE_MASK`][crate::gdk::EventMask::STRUCTURE_MASK] mask. GDK will enable this mask
    /// automatically for all new windows.
    ///
    ///
    ///
    ///
    /// #### `damage-event`
    ///  Emitted when a redirected window belonging to `widget` gets drawn into.
    /// The region/area members of the event shows what area of the redirected
    /// drawable was drawn into.
    ///
    ///
    ///
    ///
    /// #### `delete-event`
    ///  The ::delete-event signal is emitted if a user requests that
    /// a toplevel window is closed. The default handler for this signal
    /// destroys the window. Connecting [`WidgetExtManual::hide_on_delete()`][crate::prelude::WidgetExtManual::hide_on_delete()] to
    /// this signal will cause the window to be hidden instead, so that
    /// it can later be shown again without reconstructing it.
    ///
    ///
    ///
    ///
    /// #### `destroy`
    ///  Signals that all holders of a reference to the widget should release
    /// the reference that they hold. May result in finalization of the widget
    /// if all references are released.
    ///
    /// This signal is not suitable for saving widget state.
    ///
    ///
    ///
    ///
    /// #### `destroy-event`
    ///  The ::destroy-event signal is emitted when a [`gdk::Window`][crate::gdk::Window] is destroyed.
    /// You rarely get this signal, because most widgets disconnect themselves
    /// from their window before they destroy it, so no widget owns the
    /// window at destroy time.
    ///
    /// To receive this signal, the [`gdk::Window`][crate::gdk::Window] associated to the widget needs
    /// to enable the [`gdk::EventMask::STRUCTURE_MASK`][crate::gdk::EventMask::STRUCTURE_MASK] mask. GDK will enable this mask
    /// automatically for all new windows.
    ///
    ///
    ///
    ///
    /// #### `direction-changed`
    ///  The ::direction-changed signal is emitted when the text direction
    /// of a widget changes.
    ///
    ///
    ///
    ///
    /// #### `drag-begin`
    ///  The ::drag-begin signal is emitted on the drag source when a drag is
    /// started. A typical reason to connect to this signal is to set up a
    /// custom drag icon with e.g. [`WidgetExt::drag_source_set_icon_pixbuf()`][crate::prelude::WidgetExt::drag_source_set_icon_pixbuf()].
    ///
    /// Note that some widgets set up a drag icon in the default handler of
    /// this signal, so you may have to use `g_signal_connect_after()` to
    /// override what the default handler did.
    ///
    ///
    ///
    ///
    /// #### `drag-data-delete`
    ///  The ::drag-data-delete signal is emitted on the drag source when a drag
    /// with the action [`gdk::DragAction::MOVE`][crate::gdk::DragAction::MOVE] is successfully completed. The signal
    /// handler is responsible for deleting the data that has been dropped. What
    /// "delete" means depends on the context of the drag operation.
    ///
    ///
    ///
    ///
    /// #### `drag-data-get`
    ///  The ::drag-data-get signal is emitted on the drag source when the drop
    /// site requests the data which is dragged. It is the responsibility of
    /// the signal handler to fill `data` with the data in the format which
    /// is indicated by `info`. See [`SelectionData::set()`][crate::SelectionData::set()] and
    /// [`SelectionData::set_text()`][crate::SelectionData::set_text()].
    ///
    ///
    ///
    ///
    /// #### `drag-data-received`
    ///  The ::drag-data-received signal is emitted on the drop site when the
    /// dragged data has been received. If the data was received in order to
    /// determine whether the drop will be accepted, the handler is expected
    /// to call `gdk_drag_status()` and not finish the drag.
    /// If the data was received in response to a [`drag-drop`][struct@crate::Widget#drag-drop] signal
    /// (and this is the last target to be received), the handler for this
    /// signal is expected to process the received data and then call
    /// `gtk_drag_finish()`, setting the `success` parameter depending on
    /// whether the data was processed successfully.
    ///
    /// Applications must create some means to determine why the signal was emitted
    /// and therefore whether to call `gdk_drag_status()` or `gtk_drag_finish()`.
    ///
    /// The handler may inspect the selected action with
    /// [`DragContext::selected_action()`][crate::gdk::DragContext::selected_action()] before calling
    /// `gtk_drag_finish()`, e.g. to implement [`gdk::DragAction::ASK`][crate::gdk::DragAction::ASK] as
    /// shown in the following example:
    ///
    ///
    /// **⚠️ The following code is in C ⚠️**
    ///
    /// ```C
    /// void
    /// drag_data_received (GtkWidget          *widget,
    ///                     GdkDragContext     *context,
    ///                     gint                x,
    ///                     gint                y,
    ///                     GtkSelectionData   *data,
    ///                     guint               info,
    ///                     guint               time)
    /// {
    ///   if ((data->length >= 0) && (data->format == 8))
    ///     {
    ///       GdkDragAction action;
    ///
    ///       // handle data here
    ///
    ///       action = gdk_drag_context_get_selected_action (context);
    ///       if (action == GDK_ACTION_ASK)
    ///         {
    ///           GtkWidget *dialog;
    ///           gint response;
    ///
    ///           dialog = gtk_message_dialog_new (NULL,
    ///                                            GTK_DIALOG_MODAL |
    ///                                            GTK_DIALOG_DESTROY_WITH_PARENT,
    ///                                            GTK_MESSAGE_INFO,
    ///                                            GTK_BUTTONS_YES_NO,
    ///                                            "Move the data ?\n");
    ///           response = gtk_dialog_run (GTK_DIALOG (dialog));
    ///           gtk_widget_destroy (dialog);
    ///
    ///           if (response == GTK_RESPONSE_YES)
    ///             action = GDK_ACTION_MOVE;
    ///           else
    ///             action = GDK_ACTION_COPY;
    ///          }
    ///
    ///       gtk_drag_finish (context, TRUE, action == GDK_ACTION_MOVE, time);
    ///     }
    ///   else
    ///     gtk_drag_finish (context, FALSE, FALSE, time);
    ///  }
    /// ```
    ///
    ///
    ///
    ///
    /// #### `drag-drop`
    ///  The ::drag-drop signal is emitted on the drop site when the user drops
    /// the data onto the widget. The signal handler must determine whether
    /// the cursor position is in a drop zone or not. If it is not in a drop
    /// zone, it returns [`false`] and no further processing is necessary.
    /// Otherwise, the handler returns [`true`]. In this case, the handler must
    /// ensure that `gtk_drag_finish()` is called to let the source know that
    /// the drop is done. The call to `gtk_drag_finish()` can be done either
    /// directly or in a [`drag-data-received`][struct@crate::Widget#drag-data-received] handler which gets
    /// triggered by calling [`WidgetExt::drag_get_data()`][crate::prelude::WidgetExt::drag_get_data()] to receive the data for one
    /// or more of the supported targets.
    ///
    ///
    ///
    ///
    /// #### `drag-end`
    ///  The ::drag-end signal is emitted on the drag source when a drag is
    /// finished. A typical reason to connect to this signal is to undo
    /// things done in [`drag-begin`][struct@crate::Widget#drag-begin].
    ///
    ///
    ///
    ///
    /// #### `drag-failed`
    ///  The ::drag-failed signal is emitted on the drag source when a drag has
    /// failed. The signal handler may hook custom code to handle a failed DnD
    /// operation based on the type of error, it returns [`true`] is the failure has
    /// been already handled (not showing the default "drag operation failed"
    /// animation), otherwise it returns [`false`].
    ///
    ///
    ///
    ///
    /// #### `drag-leave`
    ///  The ::drag-leave signal is emitted on the drop site when the cursor
    /// leaves the widget. A typical reason to connect to this signal is to
    /// undo things done in [`drag-motion`][struct@crate::Widget#drag-motion], e.g. undo highlighting
    /// with [`WidgetExt::drag_unhighlight()`][crate::prelude::WidgetExt::drag_unhighlight()].
    ///
    ///
    /// Likewise, the [`drag-leave`][struct@crate::Widget#drag-leave] signal is also emitted before the
    /// ::drag-drop signal, for instance to allow cleaning up of a preview item
    /// created in the [`drag-motion`][struct@crate::Widget#drag-motion] signal handler.
    ///
    ///
    ///
    ///
    /// #### `drag-motion`
    ///  The ::drag-motion signal is emitted on the drop site when the user
    /// moves the cursor over the widget during a drag. The signal handler
    /// must determine whether the cursor position is in a drop zone or not.
    /// If it is not in a drop zone, it returns [`false`] and no further processing
    /// is necessary. Otherwise, the handler returns [`true`]. In this case, the
    /// handler is responsible for providing the necessary information for
    /// displaying feedback to the user, by calling `gdk_drag_status()`.
    ///
    /// If the decision whether the drop will be accepted or rejected can't be
    /// made based solely on the cursor position and the type of the data, the
    /// handler may inspect the dragged data by calling [`WidgetExt::drag_get_data()`][crate::prelude::WidgetExt::drag_get_data()] and
    /// defer the `gdk_drag_status()` call to the [`drag-data-received`][struct@crate::Widget#drag-data-received]
    /// handler. Note that you must pass [`DestDefaults::DROP`][crate::DestDefaults::DROP],
    /// [`DestDefaults::MOTION`][crate::DestDefaults::MOTION] or [`DestDefaults::ALL`][crate::DestDefaults::ALL] to [`WidgetExtManual::drag_dest_set()`][crate::prelude::WidgetExtManual::drag_dest_set()]
    /// when using the drag-motion signal that way.
    ///
    /// Also note that there is no drag-enter signal. The drag receiver has to
    /// keep track of whether he has received any drag-motion signals since the
    /// last [`drag-leave`][struct@crate::Widget#drag-leave] and if not, treat the drag-motion signal as
    /// an "enter" signal. Upon an "enter", the handler will typically highlight
    /// the drop site with [`WidgetExt::drag_highlight()`][crate::prelude::WidgetExt::drag_highlight()].
    ///
    ///
    /// **⚠️ The following code is in C ⚠️**
    ///
    /// ```C
    /// static void
    /// drag_motion (GtkWidget      *widget,
    ///              GdkDragContext *context,
    ///              gint            x,
    ///              gint            y,
    ///              guint           time)
    /// {
    ///   GdkAtom target;
    ///
    ///   PrivateData *private_data = GET_PRIVATE_DATA (widget);
    ///
    ///   if (!private_data->drag_highlight)
    ///    {
    ///      private_data->drag_highlight = 1;
    ///      gtk_drag_highlight (widget);
    ///    }
    ///
    ///   target = gtk_drag_dest_find_target (widget, context, NULL);
    ///   if (target == GDK_NONE)
    ///     gdk_drag_status (context, 0, time);
    ///   else
    ///    {
    ///      private_data->pending_status
    ///         = gdk_drag_context_get_suggested_action (context);
    ///      gtk_drag_get_data (widget, context, target, time);
    ///    }
    ///
    ///   return TRUE;
    /// }
    ///
    /// static void
    /// drag_data_received (GtkWidget        *widget,
    ///                     GdkDragContext   *context,
    ///                     gint              x,
    ///                     gint              y,
    ///                     GtkSelectionData *selection_data,
    ///                     guint             info,
    ///                     guint             time)
    /// {
    ///   PrivateData *private_data = GET_PRIVATE_DATA (widget);
    ///
    ///   if (private_data->suggested_action)
    ///    {
    ///      private_data->suggested_action = 0;
    ///
    ///      // We are getting this data due to a request in drag_motion,
    ///      // rather than due to a request in drag_drop, so we are just
    ///      // supposed to call gdk_drag_status(), not actually paste in
    ///      // the data.
    ///
    ///      str = gtk_selection_data_get_text (selection_data);
    ///      if (!data_is_acceptable (str))
    ///        gdk_drag_status (context, 0, time);
    ///      else
    ///        gdk_drag_status (context,
    ///                         private_data->suggested_action,
    ///                         time);
    ///    }
    ///   else
    ///    {
    ///      // accept the drop
    ///    }
    /// }
    /// ```
    ///
    ///
    ///
    ///
    /// #### `draw`
    ///  This signal is emitted when a widget is supposed to render itself.
    /// The `widget`'s top left corner must be painted at the origin of
    /// the passed in context and be sized to the values returned by
    /// [`WidgetExt::allocated_width()`][crate::prelude::WidgetExt::allocated_width()] and
    /// [`WidgetExt::allocated_height()`][crate::prelude::WidgetExt::allocated_height()].
    ///
    /// Signal handlers connected to this signal can modify the cairo
    /// context passed as `cr` in any way they like and don't need to
    /// restore it. The signal emission takes care of calling `cairo_save()`
    /// before and `cairo_restore()` after invoking the handler.
    ///
    /// The signal handler will get a `cr` with a clip region already set to the
    /// widget's dirty region, i.e. to the area that needs repainting. Complicated
    /// widgets that want to avoid redrawing themselves completely can get the full
    /// extents of the clip region with `gdk_cairo_get_clip_rectangle()`, or they can
    /// get a finer-grained representation of the dirty region with
    /// `cairo_copy_clip_rectangle_list()`.
    ///
    ///
    ///
    ///
    /// #### `enter-notify-event`
    ///  The ::enter-notify-event will be emitted when the pointer enters
    /// the `widget`'s window.
    ///
    /// To receive this signal, the [`gdk::Window`][crate::gdk::Window] associated to the widget needs
    /// to enable the [`gdk::EventMask::ENTER_NOTIFY_MASK`][crate::gdk::EventMask::ENTER_NOTIFY_MASK] mask.
    ///
    /// This signal will be sent to the grab widget if there is one.
    ///
    ///
    ///
    ///
    /// #### `event`
    ///  The GTK+ main loop will emit three signals for each GDK event delivered
    /// to a widget: one generic ::event signal, another, more specific,
    /// signal that matches the type of event delivered (e.g.
    /// [`key-press-event`][struct@crate::Widget#key-press-event]) and finally a generic
    /// [`event-after`][struct@crate::Widget#event-after] signal.
    ///
    ///
    ///
    ///
    /// #### `event-after`
    ///  After the emission of the [`event`][struct@crate::Widget#event] signal and (optionally)
    /// the second more specific signal, ::event-after will be emitted
    /// regardless of the previous two signals handlers return values.
    ///
    ///
    ///
    ///
    /// #### `focus`
    ///
    ///
    ///
    /// #### `focus-in-event`
    ///  The ::focus-in-event signal will be emitted when the keyboard focus
    /// enters the `widget`'s window.
    ///
    /// To receive this signal, the [`gdk::Window`][crate::gdk::Window] associated to the widget needs
    /// to enable the [`gdk::EventMask::FOCUS_CHANGE_MASK`][crate::gdk::EventMask::FOCUS_CHANGE_MASK] mask.
    ///
    ///
    ///
    ///
    /// #### `focus-out-event`
    ///  The ::focus-out-event signal will be emitted when the keyboard focus
    /// leaves the `widget`'s window.
    ///
    /// To receive this signal, the [`gdk::Window`][crate::gdk::Window] associated to the widget needs
    /// to enable the [`gdk::EventMask::FOCUS_CHANGE_MASK`][crate::gdk::EventMask::FOCUS_CHANGE_MASK] mask.
    ///
    ///
    ///
    ///
    /// #### `grab-broken-event`
    ///  Emitted when a pointer or keyboard grab on a window belonging
    /// to `widget` gets broken.
    ///
    /// On X11, this happens when the grab window becomes unviewable
    /// (i.e. it or one of its ancestors is unmapped), or if the same
    /// application grabs the pointer or keyboard again.
    ///
    ///
    ///
    ///
    /// #### `grab-focus`
    ///  Action
    ///
    ///
    /// #### `grab-notify`
    ///  The ::grab-notify signal is emitted when a widget becomes
    /// shadowed by a GTK+ grab (not a pointer or keyboard grab) on
    /// another widget, or when it becomes unshadowed due to a grab
    /// being removed.
    ///
    /// A widget is shadowed by a [`WidgetExt::grab_add()`][crate::prelude::WidgetExt::grab_add()] when the topmost
    /// grab widget in the grab stack of its window group is not
    /// its ancestor.
    ///
    ///
    ///
    ///
    /// #### `hide`
    ///  The ::hide signal is emitted when `widget` is hidden, for example with
    /// [`WidgetExt::hide()`][crate::prelude::WidgetExt::hide()].
    ///
    ///
    ///
    ///
    /// #### `hierarchy-changed`
    ///  The ::hierarchy-changed signal is emitted when the
    /// anchored state of a widget changes. A widget is
    /// “anchored” when its toplevel
    /// ancestor is a [`Window`][crate::Window]. This signal is emitted when
    /// a widget changes from un-anchored to anchored or vice-versa.
    ///
    ///
    ///
    ///
    /// #### `key-press-event`
    ///  The ::key-press-event signal is emitted when a key is pressed. The signal
    /// emission will reoccur at the key-repeat rate when the key is kept pressed.
    ///
    /// To receive this signal, the [`gdk::Window`][crate::gdk::Window] associated to the widget needs
    /// to enable the [`gdk::EventMask::KEY_PRESS_MASK`][crate::gdk::EventMask::KEY_PRESS_MASK] mask.
    ///
    /// This signal will be sent to the grab widget if there is one.
    ///
    ///
    ///
    ///
    /// #### `key-release-event`
    ///  The ::key-release-event signal is emitted when a key is released.
    ///
    /// To receive this signal, the [`gdk::Window`][crate::gdk::Window] associated to the widget needs
    /// to enable the [`gdk::EventMask::KEY_RELEASE_MASK`][crate::gdk::EventMask::KEY_RELEASE_MASK] mask.
    ///
    /// This signal will be sent to the grab widget if there is one.
    ///
    ///
    ///
    ///
    /// #### `keynav-failed`
    ///  Gets emitted if keyboard navigation fails.
    /// See [`WidgetExt::keynav_failed()`][crate::prelude::WidgetExt::keynav_failed()] for details.
    ///
    ///
    ///
    ///
    /// #### `leave-notify-event`
    ///  The ::leave-notify-event will be emitted when the pointer leaves
    /// the `widget`'s window.
    ///
    /// To receive this signal, the [`gdk::Window`][crate::gdk::Window] associated to the widget needs
    /// to enable the [`gdk::EventMask::LEAVE_NOTIFY_MASK`][crate::gdk::EventMask::LEAVE_NOTIFY_MASK] mask.
    ///
    /// This signal will be sent to the grab widget if there is one.
    ///
    ///
    ///
    ///
    /// #### `map`
    ///  The ::map signal is emitted when `widget` is going to be mapped, that is
    /// when the widget is visible (which is controlled with
    /// [`WidgetExt::set_visible()`][crate::prelude::WidgetExt::set_visible()]) and all its parents up to the toplevel widget
    /// are also visible. Once the map has occurred, [`map-event`][struct@crate::Widget#map-event] will
    /// be emitted.
    ///
    /// The ::map signal can be used to determine whether a widget will be drawn,
    /// for instance it can resume an animation that was stopped during the
    /// emission of [`unmap`][struct@crate::Widget#unmap].
    ///
    ///
    ///
    ///
    /// #### `map-event`
    ///  The ::map-event signal will be emitted when the `widget`'s window is
    /// mapped. A window is mapped when it becomes visible on the screen.
    ///
    /// To receive this signal, the [`gdk::Window`][crate::gdk::Window] associated to the widget needs
    /// to enable the [`gdk::EventMask::STRUCTURE_MASK`][crate::gdk::EventMask::STRUCTURE_MASK] mask. GDK will enable this mask
    /// automatically for all new windows.
    ///
    ///
    ///
    ///
    /// #### `mnemonic-activate`
    ///  The default handler for this signal activates `widget` if `group_cycling`
    /// is [`false`], or just makes `widget` grab focus if `group_cycling` is [`true`].
    ///
    ///
    ///
    ///
    /// #### `motion-notify-event`
    ///  The ::motion-notify-event signal is emitted when the pointer moves
    /// over the widget's [`gdk::Window`][crate::gdk::Window].
    ///
    /// To receive this signal, the [`gdk::Window`][crate::gdk::Window] associated to the widget
    /// needs to enable the [`gdk::EventMask::POINTER_MOTION_MASK`][crate::gdk::EventMask::POINTER_MOTION_MASK] mask.
    ///
    /// This signal will be sent to the grab widget if there is one.
    ///
    ///
    ///
    ///
    /// #### `move-focus`
    ///  Action
    ///
    ///
    /// #### `parent-set`
    ///  The ::parent-set signal is emitted when a new parent
    /// has been set on a widget.
    ///
    ///
    ///
    ///
    /// #### `popup-menu`
    ///  This signal gets emitted whenever a widget should pop up a context
    /// menu. This usually happens through the standard key binding mechanism;
    /// by pressing a certain key while a widget is focused, the user can cause
    /// the widget to pop up a menu. For example, the [`Entry`][crate::Entry] widget creates
    /// a menu with clipboard commands. See the
    /// [Popup Menu Migration Checklist][checklist-popup-menu]
    /// for an example of how to use this signal.
    ///
    /// Action
    ///
    ///
    /// #### `property-notify-event`
    ///  The ::property-notify-event signal will be emitted when a property on
    /// the `widget`'s window has been changed or deleted.
    ///
    /// To receive this signal, the [`gdk::Window`][crate::gdk::Window] associated to the widget needs
    /// to enable the [`gdk::EventMask::PROPERTY_CHANGE_MASK`][crate::gdk::EventMask::PROPERTY_CHANGE_MASK] mask.
    ///
    ///
    ///
    ///
    /// #### `proximity-in-event`
    ///  To receive this signal the [`gdk::Window`][crate::gdk::Window] associated to the widget needs
    /// to enable the [`gdk::EventMask::PROXIMITY_IN_MASK`][crate::gdk::EventMask::PROXIMITY_IN_MASK] mask.
    ///
    /// This signal will be sent to the grab widget if there is one.
    ///
    ///
    ///
    ///
    /// #### `proximity-out-event`
    ///  To receive this signal the [`gdk::Window`][crate::gdk::Window] associated to the widget needs
    /// to enable the [`gdk::EventMask::PROXIMITY_OUT_MASK`][crate::gdk::EventMask::PROXIMITY_OUT_MASK] mask.
    ///
    /// This signal will be sent to the grab widget if there is one.
    ///
    ///
    ///
    ///
    /// #### `query-tooltip`
    ///  Emitted when [`has-tooltip`][struct@crate::Widget#has-tooltip] is [`true`] and the hover timeout
    /// has expired with the cursor hovering "above" `widget`; or emitted when `widget` got
    /// focus in keyboard mode.
    ///
    /// Using the given coordinates, the signal handler should determine
    /// whether a tooltip should be shown for `widget`. If this is the case
    /// [`true`] should be returned, [`false`] otherwise. Note that if
    /// `keyboard_mode` is [`true`], the values of `x` and `y` are undefined and
    /// should not be used.
    ///
    /// The signal handler is free to manipulate `tooltip` with the therefore
    /// destined function calls.
    ///
    ///
    ///
    ///
    /// #### `realize`
    ///  The ::realize signal is emitted when `widget` is associated with a
    /// [`gdk::Window`][crate::gdk::Window], which means that [`WidgetExt::realize()`][crate::prelude::WidgetExt::realize()] has been called or the
    /// widget has been mapped (that is, it is going to be drawn).
    ///
    ///
    ///
    ///
    /// #### `screen-changed`
    ///  The ::screen-changed signal gets emitted when the
    /// screen of a widget has changed.
    ///
    ///
    ///
    ///
    /// #### `scroll-event`
    ///  The ::scroll-event signal is emitted when a button in the 4 to 7
    /// range is pressed. Wheel mice are usually configured to generate
    /// button press events for buttons 4 and 5 when the wheel is turned.
    ///
    /// To receive this signal, the [`gdk::Window`][crate::gdk::Window] associated to the widget needs
    /// to enable the [`gdk::EventMask::SCROLL_MASK`][crate::gdk::EventMask::SCROLL_MASK] mask.
    ///
    /// This signal will be sent to the grab widget if there is one.
    ///
    ///
    ///
    ///
    /// #### `selection-clear-event`
    ///  The ::selection-clear-event signal will be emitted when the
    /// the `widget`'s window has lost ownership of a selection.
    ///
    ///
    ///
    ///
    /// #### `selection-get`
    ///
    ///
    ///
    /// #### `selection-notify-event`
    ///
    ///
    ///
    /// #### `selection-received`
    ///
    ///
    ///
    /// #### `selection-request-event`
    ///  The ::selection-request-event signal will be emitted when
    /// another client requests ownership of the selection owned by
    /// the `widget`'s window.
    ///
    ///
    ///
    ///
    /// #### `show`
    ///  The ::show signal is emitted when `widget` is shown, for example with
    /// [`WidgetExt::show()`][crate::prelude::WidgetExt::show()].
    ///
    ///
    ///
    ///
    /// #### `show-help`
    ///  Action
    ///
    ///
    /// #### `size-allocate`
    ///
    ///
    ///
    /// #### `state-changed`
    ///  The ::state-changed signal is emitted when the widget state changes.
    /// See `gtk_widget_get_state()`.
    ///
    ///
    ///
    ///
    /// #### `state-flags-changed`
    ///  The ::state-flags-changed signal is emitted when the widget state
    /// changes, see [`WidgetExt::state_flags()`][crate::prelude::WidgetExt::state_flags()].
    ///
    ///
    ///
    ///
    /// #### `style-set`
    ///  The ::style-set signal is emitted when a new style has been set
    /// on a widget. Note that style-modifying functions like
    /// `gtk_widget_modify_base()` also cause this signal to be emitted.
    ///
    /// Note that this signal is emitted for changes to the deprecated
    /// `GtkStyle`. To track changes to the [`StyleContext`][crate::StyleContext] associated
    /// with a widget, use the [`style-updated`][struct@crate::Widget#style-updated] signal.
    ///
    ///
    ///
    ///
    /// #### `style-updated`
    ///  The ::style-updated signal is a convenience signal that is emitted when the
    /// [`changed`][struct@crate::StyleContext#changed] signal is emitted on the `widget`'s associated
    /// [`StyleContext`][crate::StyleContext] as returned by [`WidgetExt::style_context()`][crate::prelude::WidgetExt::style_context()].
    ///
    /// Note that style-modifying functions like `gtk_widget_override_color()` also
    /// cause this signal to be emitted.
    ///
    ///
    ///
    ///
    /// #### `touch-event`
    ///
    ///
    ///
    /// #### `unmap`
    ///  The ::unmap signal is emitted when `widget` is going to be unmapped, which
    /// means that either it or any of its parents up to the toplevel widget have
    /// been set as hidden.
    ///
    /// As ::unmap indicates that a widget will not be shown any longer, it can be
    /// used to, for example, stop an animation on the widget.
    ///
    ///
    ///
    ///
    /// #### `unmap-event`
    ///  The ::unmap-event signal will be emitted when the `widget`'s window is
    /// unmapped. A window is unmapped when it becomes invisible on the screen.
    ///
    /// To receive this signal, the [`gdk::Window`][crate::gdk::Window] associated to the widget needs
    /// to enable the [`gdk::EventMask::STRUCTURE_MASK`][crate::gdk::EventMask::STRUCTURE_MASK] mask. GDK will enable this mask
    /// automatically for all new windows.
    ///
    ///
    ///
    ///
    /// #### `unrealize`
    ///  The ::unrealize signal is emitted when the [`gdk::Window`][crate::gdk::Window] associated with
    /// `widget` is destroyed, which means that [`WidgetExt::unrealize()`][crate::prelude::WidgetExt::unrealize()] has been
    /// called or the widget has been unmapped (that is, it is going to be
    /// hidden).
    ///
    ///
    ///
    ///
    /// #### `visibility-notify-event`
    ///  The ::visibility-notify-event will be emitted when the `widget`'s
    /// window is obscured or unobscured.
    ///
    /// To receive this signal the [`gdk::Window`][crate::gdk::Window] associated to the widget needs
    /// to enable the [`gdk::EventMask::VISIBILITY_NOTIFY_MASK`][crate::gdk::EventMask::VISIBILITY_NOTIFY_MASK] mask.
    ///
    ///
    ///
    ///
    /// #### `window-state-event`
    ///  The ::window-state-event will be emitted when the state of the
    /// toplevel window associated to the `widget` changes.
    ///
    /// To receive this signal the [`gdk::Window`][crate::gdk::Window] associated to the widget
    /// needs to enable the [`gdk::EventMask::STRUCTURE_MASK`][crate::gdk::EventMask::STRUCTURE_MASK] mask. GDK will enable
    /// this mask automatically for all new windows.
    ///
    ///
    /// </details>
    ///
    /// # Implements
    ///
    /// [`GtkMenuExt`][trait@crate::prelude::GtkMenuExt], [`MenuShellExt`][trait@crate::prelude::MenuShellExt], [`ContainerExt`][trait@crate::prelude::ContainerExt], [`WidgetExt`][trait@crate::prelude::WidgetExt], [`trait@glib::ObjectExt`], [`BuildableExt`][trait@crate::prelude::BuildableExt], [`GtkMenuExtManual`][trait@crate::prelude::GtkMenuExtManual], [`ContainerExtManual`][trait@crate::prelude::ContainerExtManual], [`WidgetExtManual`][trait@crate::prelude::WidgetExtManual], [`BuildableExtManual`][trait@crate::prelude::BuildableExtManual]
    #[doc(alias = "GtkMenu")]
    pub struct Menu(Object<ffi::GtkMenu, ffi::GtkMenuClass>) @extends MenuShell, Container, Widget, @implements Buildable;

    match fn {
        type_ => || ffi::gtk_menu_get_type(),
    }
}

impl Menu {
    pub const NONE: Option<&'static Menu> = None;

    /// Creates a new [`Menu`][crate::Menu]
    ///
    /// # Returns
    ///
    /// a new [`Menu`][crate::Menu]
    #[doc(alias = "gtk_menu_new")]
    pub fn new() -> Menu {
        assert_initialized_main_thread!();
        unsafe { Widget::from_glib_none(ffi::gtk_menu_new()).unsafe_cast() }
    }

    /// Creates a [`Menu`][crate::Menu] and populates it with menu items and
    /// submenus according to `model`.
    ///
    /// The created menu items are connected to actions found in the
    /// [`ApplicationWindow`][crate::ApplicationWindow] to which the menu belongs - typically
    /// by means of being attached to a widget (see `gtk_menu_attach_to_widget()`)
    /// that is contained within the `GtkApplicationWindows` widget hierarchy.
    ///
    /// Actions can also be added using [`WidgetExt::insert_action_group()`][crate::prelude::WidgetExt::insert_action_group()] on the menu's
    /// attach widget or on any of its parent widgets.
    /// ## `model`
    /// a [`gio::MenuModel`][crate::gio::MenuModel]
    ///
    /// # Returns
    ///
    /// a new [`Menu`][crate::Menu]
    #[doc(alias = "gtk_menu_new_from_model")]
    #[doc(alias = "new_from_model")]
    pub fn from_model(model: &impl IsA<gio::MenuModel>) -> Menu {
        assert_initialized_main_thread!();
        unsafe {
            Widget::from_glib_none(ffi::gtk_menu_new_from_model(
                model.as_ref().to_glib_none().0,
            ))
            .unsafe_cast()
        }
    }

    // rustdoc-stripper-ignore-next
    /// Creates a new builder-pattern struct instance to construct [`Menu`] objects.
    ///
    /// This method returns an instance of [`MenuBuilder`](crate::builders::MenuBuilder) which can be used to create [`Menu`] objects.
    pub fn builder() -> MenuBuilder {
        MenuBuilder::new()
    }

    /// Returns a list of the menus which are attached to this widget.
    /// This list is owned by GTK+ and must not be modified.
    /// ## `widget`
    /// a [`Widget`][crate::Widget]
    ///
    /// # Returns
    ///
    /// the list
    ///  of menus attached to his widget.
    #[doc(alias = "gtk_menu_get_for_attach_widget")]
    #[doc(alias = "get_for_attach_widget")]
    pub fn for_attach_widget(widget: &impl IsA<Widget>) -> Vec<Widget> {
        skip_assert_initialized!();
        unsafe {
            FromGlibPtrContainer::from_glib_none(ffi::gtk_menu_get_for_attach_widget(
                widget.as_ref().to_glib_none().0,
            ))
        }
    }
}

impl Default for Menu {
    fn default() -> Self {
        Self::new()
    }
}

// rustdoc-stripper-ignore-next
/// A [builder-pattern] type to construct [`Menu`] objects.
///
/// [builder-pattern]: https://doc.rust-lang.org/1.0.0/style/ownership/builders.html
#[must_use = "The builder must be built to be used"]
pub struct MenuBuilder {
    builder: glib::object::ObjectBuilder<'static, Menu>,
}

impl MenuBuilder {
    fn new() -> Self {
        Self {
            builder: glib::object::Object::builder(),
        }
    }

    /// The accel group holding accelerators for the menu.
    pub fn accel_group(self, accel_group: &impl IsA<AccelGroup>) -> Self {
        Self {
            builder: self
                .builder
                .property("accel-group", accel_group.clone().upcast()),
        }
    }

    /// An accel path used to conveniently construct accel paths of child items.
    pub fn accel_path(self, accel_path: impl Into<glib::GString>) -> Self {
        Self {
            builder: self.builder.property("accel-path", accel_path.into()),
        }
    }

    /// The index of the currently selected menu item, or -1 if no
    /// menu item is selected.
    pub fn active(self, active: i32) -> Self {
        Self {
            builder: self.builder.property("active", active),
        }
    }

    /// Positioning hints for aligning the menu relative to a rectangle.
    ///
    /// These hints determine how the menu should be positioned in the case that
    /// the menu would fall off-screen if placed in its ideal position.
    ///
    /// ![](popup-flip.png)
    ///
    /// For example, [`gdk::AnchorHints::FLIP_Y`][crate::gdk::AnchorHints::FLIP_Y] will replace [`gdk::Gravity::NorthWest`][crate::gdk::Gravity::NorthWest] with
    /// [`gdk::Gravity::SouthWest`][crate::gdk::Gravity::SouthWest] and vice versa if the menu extends beyond the
    /// bottom edge of the monitor.
    ///
    /// See gtk_menu_popup_at_rect (), gtk_menu_popup_at_widget (),
    /// gtk_menu_popup_at_pointer (), [`rect-anchor-dx`][struct@crate::Menu#rect-anchor-dx],
    /// [`rect-anchor-dy`][struct@crate::Menu#rect-anchor-dy], [`menu-type-hint`][struct@crate::Menu#menu-type-hint], and [`popped-up`][struct@crate::Menu#popped-up].
    pub fn anchor_hints(self, anchor_hints: gdk::AnchorHints) -> Self {
        Self {
            builder: self.builder.property("anchor-hints", anchor_hints),
        }
    }

    /// The widget the menu is attached to. Setting this property attaches
    /// the menu without a `GtkMenuDetachFunc`. If you need to use a detacher,
    /// use `gtk_menu_attach_to_widget()` directly.
    pub fn attach_widget(self, attach_widget: &impl IsA<Widget>) -> Self {
        Self {
            builder: self
                .builder
                .property("attach-widget", attach_widget.clone().upcast()),
        }
    }

    /// The [`gdk::WindowTypeHint`][crate::gdk::WindowTypeHint] to use for the menu's [`gdk::Window`][crate::gdk::Window].
    ///
    /// See gtk_menu_popup_at_rect (), gtk_menu_popup_at_widget (),
    /// gtk_menu_popup_at_pointer (), [`anchor-hints`][struct@crate::Menu#anchor-hints],
    /// [`rect-anchor-dx`][struct@crate::Menu#rect-anchor-dx], [`rect-anchor-dy`][struct@crate::Menu#rect-anchor-dy], and [`popped-up`][struct@crate::Menu#popped-up].
    pub fn menu_type_hint(self, menu_type_hint: gdk::WindowTypeHint) -> Self {
        Self {
            builder: self.builder.property("menu-type-hint", menu_type_hint),
        }
    }

    /// The monitor the menu will be popped up on.
    pub fn monitor(self, monitor: i32) -> Self {
        Self {
            builder: self.builder.property("monitor", monitor),
        }
    }

    /// Horizontal offset to apply to the menu, i.e. the rectangle or widget
    /// anchor.
    ///
    /// See gtk_menu_popup_at_rect (), gtk_menu_popup_at_widget (),
    /// gtk_menu_popup_at_pointer (), [`anchor-hints`][struct@crate::Menu#anchor-hints],
    /// [`rect-anchor-dy`][struct@crate::Menu#rect-anchor-dy], [`menu-type-hint`][struct@crate::Menu#menu-type-hint], and [`popped-up`][struct@crate::Menu#popped-up].
    pub fn rect_anchor_dx(self, rect_anchor_dx: i32) -> Self {
        Self {
            builder: self.builder.property("rect-anchor-dx", rect_anchor_dx),
        }
    }

    /// Vertical offset to apply to the menu, i.e. the rectangle or widget anchor.
    ///
    /// See gtk_menu_popup_at_rect (), gtk_menu_popup_at_widget (),
    /// gtk_menu_popup_at_pointer (), [`anchor-hints`][struct@crate::Menu#anchor-hints],
    /// [`rect-anchor-dx`][struct@crate::Menu#rect-anchor-dx], [`menu-type-hint`][struct@crate::Menu#menu-type-hint], and [`popped-up`][struct@crate::Menu#popped-up].
    pub fn rect_anchor_dy(self, rect_anchor_dy: i32) -> Self {
        Self {
            builder: self.builder.property("rect-anchor-dy", rect_anchor_dy),
        }
    }

    /// A boolean that indicates whether the menu reserves space for
    /// toggles and icons, regardless of their actual presence.
    ///
    /// This property should only be changed from its default value
    /// for special-purposes such as tabular menus. Regular menus that
    /// are connected to a menu bar or context menus should reserve
    /// toggle space for consistency.
    pub fn reserve_toggle_size(self, reserve_toggle_size: bool) -> Self {
        Self {
            builder: self
                .builder
                .property("reserve-toggle-size", reserve_toggle_size),
        }
    }

    /// A boolean that determines whether the menu and its submenus grab the
    /// keyboard focus. See [`MenuShellExt::set_take_focus()`][crate::prelude::MenuShellExt::set_take_focus()] and
    /// [`MenuShellExt::takes_focus()`][crate::prelude::MenuShellExt::takes_focus()].
    pub fn take_focus(self, take_focus: bool) -> Self {
        Self {
            builder: self.builder.property("take-focus", take_focus),
        }
    }

    pub fn border_width(self, border_width: u32) -> Self {
        Self {
            builder: self.builder.property("border-width", border_width),
        }
    }

    pub fn child(self, child: &impl IsA<Widget>) -> Self {
        Self {
            builder: self.builder.property("child", child.clone().upcast()),
        }
    }

    pub fn resize_mode(self, resize_mode: ResizeMode) -> Self {
        Self {
            builder: self.builder.property("resize-mode", resize_mode),
        }
    }

    pub fn app_paintable(self, app_paintable: bool) -> Self {
        Self {
            builder: self.builder.property("app-paintable", app_paintable),
        }
    }

    pub fn can_default(self, can_default: bool) -> Self {
        Self {
            builder: self.builder.property("can-default", can_default),
        }
    }

    pub fn can_focus(self, can_focus: bool) -> Self {
        Self {
            builder: self.builder.property("can-focus", can_focus),
        }
    }

    pub fn events(self, events: gdk::EventMask) -> Self {
        Self {
            builder: self.builder.property("events", events),
        }
    }

    /// Whether to expand in both directions. Setting this sets both [`hexpand`][struct@crate::Widget#hexpand] and [`vexpand`][struct@crate::Widget#vexpand]
    pub fn expand(self, expand: bool) -> Self {
        Self {
            builder: self.builder.property("expand", expand),
        }
    }

    /// Whether the widget should grab focus when it is clicked with the mouse.
    ///
    /// This property is only relevant for widgets that can take focus.
    ///
    /// Before 3.20, several widgets (GtkButton, GtkFileChooserButton,
    /// GtkComboBox) implemented this property individually.
    pub fn focus_on_click(self, focus_on_click: bool) -> Self {
        Self {
            builder: self.builder.property("focus-on-click", focus_on_click),
        }
    }

    /// How to distribute horizontal space if widget gets extra space, see [`Align`][crate::Align]
    pub fn halign(self, halign: Align) -> Self {
        Self {
            builder: self.builder.property("halign", halign),
        }
    }

    pub fn has_default(self, has_default: bool) -> Self {
        Self {
            builder: self.builder.property("has-default", has_default),
        }
    }

    pub fn has_focus(self, has_focus: bool) -> Self {
        Self {
            builder: self.builder.property("has-focus", has_focus),
        }
    }

    /// Enables or disables the emission of [`query-tooltip`][struct@crate::Widget#query-tooltip] on `widget`.
    /// A value of [`true`] indicates that `widget` can have a tooltip, in this case
    /// the widget will be queried using [`query-tooltip`][struct@crate::Widget#query-tooltip] to determine
    /// whether it will provide a tooltip or not.
    ///
    /// Note that setting this property to [`true`] for the first time will change
    /// the event masks of the GdkWindows of this widget to include leave-notify
    /// and motion-notify events. This cannot and will not be undone when the
    /// property is set to [`false`] again.
    pub fn has_tooltip(self, has_tooltip: bool) -> Self {
        Self {
            builder: self.builder.property("has-tooltip", has_tooltip),
        }
    }

    pub fn height_request(self, height_request: i32) -> Self {
        Self {
            builder: self.builder.property("height-request", height_request),
        }
    }

    /// Whether to expand horizontally. See [`WidgetExt::set_hexpand()`][crate::prelude::WidgetExt::set_hexpand()].
    pub fn hexpand(self, hexpand: bool) -> Self {
        Self {
            builder: self.builder.property("hexpand", hexpand),
        }
    }

    /// Whether to use the [`hexpand`][struct@crate::Widget#hexpand] property. See [`WidgetExt::is_hexpand_set()`][crate::prelude::WidgetExt::is_hexpand_set()].
    pub fn hexpand_set(self, hexpand_set: bool) -> Self {
        Self {
            builder: self.builder.property("hexpand-set", hexpand_set),
        }
    }

    pub fn is_focus(self, is_focus: bool) -> Self {
        Self {
            builder: self.builder.property("is-focus", is_focus),
        }
    }

    /// Sets all four sides' margin at once. If read, returns max
    /// margin on any side.
    pub fn margin(self, margin: i32) -> Self {
        Self {
            builder: self.builder.property("margin", margin),
        }
    }

    /// Margin on bottom side of widget.
    ///
    /// This property adds margin outside of the widget's normal size
    /// request, the margin will be added in addition to the size from
    /// [`WidgetExt::set_size_request()`][crate::prelude::WidgetExt::set_size_request()] for example.
    pub fn margin_bottom(self, margin_bottom: i32) -> Self {
        Self {
            builder: self.builder.property("margin-bottom", margin_bottom),
        }
    }

    /// Margin on end of widget, horizontally. This property supports
    /// left-to-right and right-to-left text directions.
    ///
    /// This property adds margin outside of the widget's normal size
    /// request, the margin will be added in addition to the size from
    /// [`WidgetExt::set_size_request()`][crate::prelude::WidgetExt::set_size_request()] for example.
    pub fn margin_end(self, margin_end: i32) -> Self {
        Self {
            builder: self.builder.property("margin-end", margin_end),
        }
    }

    /// Margin on start of widget, horizontally. This property supports
    /// left-to-right and right-to-left text directions.
    ///
    /// This property adds margin outside of the widget's normal size
    /// request, the margin will be added in addition to the size from
    /// [`WidgetExt::set_size_request()`][crate::prelude::WidgetExt::set_size_request()] for example.
    pub fn margin_start(self, margin_start: i32) -> Self {
        Self {
            builder: self.builder.property("margin-start", margin_start),
        }
    }

    /// Margin on top side of widget.
    ///
    /// This property adds margin outside of the widget's normal size
    /// request, the margin will be added in addition to the size from
    /// [`WidgetExt::set_size_request()`][crate::prelude::WidgetExt::set_size_request()] for example.
    pub fn margin_top(self, margin_top: i32) -> Self {
        Self {
            builder: self.builder.property("margin-top", margin_top),
        }
    }

    pub fn name(self, name: impl Into<glib::GString>) -> Self {
        Self {
            builder: self.builder.property("name", name.into()),
        }
    }

    pub fn no_show_all(self, no_show_all: bool) -> Self {
        Self {
            builder: self.builder.property("no-show-all", no_show_all),
        }
    }

    /// The requested opacity of the widget. See [`WidgetExt::set_opacity()`][crate::prelude::WidgetExt::set_opacity()] for
    /// more details about window opacity.
    ///
    /// Before 3.8 this was only available in GtkWindow
    pub fn opacity(self, opacity: f64) -> Self {
        Self {
            builder: self.builder.property("opacity", opacity),
        }
    }

    pub fn parent(self, parent: &impl IsA<Container>) -> Self {
        Self {
            builder: self.builder.property("parent", parent.clone().upcast()),
        }
    }

    pub fn receives_default(self, receives_default: bool) -> Self {
        Self {
            builder: self.builder.property("receives-default", receives_default),
        }
    }

    pub fn sensitive(self, sensitive: bool) -> Self {
        Self {
            builder: self.builder.property("sensitive", sensitive),
        }
    }

    /// Sets the text of tooltip to be the given string, which is marked up
    /// with the [Pango text markup language][PangoMarkupFormat].
    /// Also see [`Tooltip::set_markup()`][crate::Tooltip::set_markup()].
    ///
    /// This is a convenience property which will take care of getting the
    /// tooltip shown if the given string is not [`None`]: [`has-tooltip`][struct@crate::Widget#has-tooltip]
    /// will automatically be set to [`true`] and there will be taken care of
    /// [`query-tooltip`][struct@crate::Widget#query-tooltip] in the default signal handler.
    ///
    /// Note that if both [`tooltip-text`][struct@crate::Widget#tooltip-text] and [`tooltip-markup`][struct@crate::Widget#tooltip-markup]
    /// are set, the last one wins.
    pub fn tooltip_markup(self, tooltip_markup: impl Into<glib::GString>) -> Self {
        Self {
            builder: self
                .builder
                .property("tooltip-markup", tooltip_markup.into()),
        }
    }

    /// Sets the text of tooltip to be the given string.
    ///
    /// Also see [`Tooltip::set_text()`][crate::Tooltip::set_text()].
    ///
    /// This is a convenience property which will take care of getting the
    /// tooltip shown if the given string is not [`None`]: [`has-tooltip`][struct@crate::Widget#has-tooltip]
    /// will automatically be set to [`true`] and there will be taken care of
    /// [`query-tooltip`][struct@crate::Widget#query-tooltip] in the default signal handler.
    ///
    /// Note that if both [`tooltip-text`][struct@crate::Widget#tooltip-text] and [`tooltip-markup`][struct@crate::Widget#tooltip-markup]
    /// are set, the last one wins.
    pub fn tooltip_text(self, tooltip_text: impl Into<glib::GString>) -> Self {
        Self {
            builder: self.builder.property("tooltip-text", tooltip_text.into()),
        }
    }

    /// How to distribute vertical space if widget gets extra space, see [`Align`][crate::Align]
    pub fn valign(self, valign: Align) -> Self {
        Self {
            builder: self.builder.property("valign", valign),
        }
    }

    /// Whether to expand vertically. See [`WidgetExt::set_vexpand()`][crate::prelude::WidgetExt::set_vexpand()].
    pub fn vexpand(self, vexpand: bool) -> Self {
        Self {
            builder: self.builder.property("vexpand", vexpand),
        }
    }

    /// Whether to use the [`vexpand`][struct@crate::Widget#vexpand] property. See [`WidgetExt::is_vexpand_set()`][crate::prelude::WidgetExt::is_vexpand_set()].
    pub fn vexpand_set(self, vexpand_set: bool) -> Self {
        Self {
            builder: self.builder.property("vexpand-set", vexpand_set),
        }
    }

    pub fn visible(self, visible: bool) -> Self {
        Self {
            builder: self.builder.property("visible", visible),
        }
    }

    pub fn width_request(self, width_request: i32) -> Self {
        Self {
            builder: self.builder.property("width-request", width_request),
        }
    }

    // rustdoc-stripper-ignore-next
    /// Build the [`Menu`].
    #[must_use = "Building the object from the builder is usually expensive and is not expected to have side effects"]
    pub fn build(self) -> Menu {
        assert_initialized_main_thread!();
        self.builder.build()
    }
}

/// Trait containing all [`struct@Menu`] methods.
///
/// # Implementors
///
/// [`Menu`][struct@crate::Menu], [`RecentChooserMenu`][struct@crate::RecentChooserMenu]
pub trait GtkMenuExt: IsA<Menu> + 'static {
    /// Adds a new [`MenuItem`][crate::MenuItem] to a (table) menu. The number of “cells” that
    /// an item will occupy is specified by `left_attach`, `right_attach`,
    /// `top_attach` and `bottom_attach`. These each represent the leftmost,
    /// rightmost, uppermost and lower column and row numbers of the table.
    /// (Columns and rows are indexed from zero).
    ///
    /// Note that this function is not related to [`detach()`][Self::detach()].
    /// ## `child`
    /// a [`MenuItem`][crate::MenuItem]
    /// ## `left_attach`
    /// The column number to attach the left side of the item to
    /// ## `right_attach`
    /// The column number to attach the right side of the item to
    /// ## `top_attach`
    /// The row number to attach the top of the item to
    /// ## `bottom_attach`
    /// The row number to attach the bottom of the item to
    #[doc(alias = "gtk_menu_attach")]
    fn attach(
        &self,
        child: &impl IsA<Widget>,
        left_attach: u32,
        right_attach: u32,
        top_attach: u32,
        bottom_attach: u32,
    ) {
        unsafe {
            ffi::gtk_menu_attach(
                self.as_ref().to_glib_none().0,
                child.as_ref().to_glib_none().0,
                left_attach,
                right_attach,
                top_attach,
                bottom_attach,
            );
        }
    }

    /// Detaches the menu from the widget to which it had been attached.
    /// This function will call the callback function, `detacher`, provided
    /// when the `gtk_menu_attach_to_widget()` function was called.
    #[doc(alias = "gtk_menu_detach")]
    fn detach(&self) {
        unsafe {
            ffi::gtk_menu_detach(self.as_ref().to_glib_none().0);
        }
    }

    /// Gets the [`AccelGroup`][crate::AccelGroup] which holds global accelerators for the
    /// menu. See [`set_accel_group()`][Self::set_accel_group()].
    ///
    /// # Returns
    ///
    /// the [`AccelGroup`][crate::AccelGroup] associated with the menu
    #[doc(alias = "gtk_menu_get_accel_group")]
    #[doc(alias = "get_accel_group")]
    #[doc(alias = "accel-group")]
    fn accel_group(&self) -> Option<AccelGroup> {
        unsafe {
            from_glib_none(ffi::gtk_menu_get_accel_group(
                self.as_ref().to_glib_none().0,
            ))
        }
    }

    /// Retrieves the accelerator path set on the menu.
    ///
    /// # Returns
    ///
    /// the accelerator path set on the menu.
    #[doc(alias = "gtk_menu_get_accel_path")]
    #[doc(alias = "get_accel_path")]
    #[doc(alias = "accel-path")]
    fn accel_path(&self) -> Option<glib::GString> {
        unsafe { from_glib_none(ffi::gtk_menu_get_accel_path(self.as_ref().to_glib_none().0)) }
    }

    /// Returns the selected menu item from the menu. This is used by the
    /// [`ComboBox`][crate::ComboBox].
    ///
    /// # Returns
    ///
    /// the [`MenuItem`][crate::MenuItem] that was last selected
    ///  in the menu. If a selection has not yet been made, the
    ///  first menu item is selected.
    #[doc(alias = "gtk_menu_get_active")]
    #[doc(alias = "get_active")]
    fn active(&self) -> Option<Widget> {
        unsafe { from_glib_none(ffi::gtk_menu_get_active(self.as_ref().to_glib_none().0)) }
    }

    /// Returns the [`Widget`][crate::Widget] that the menu is attached to.
    ///
    /// # Returns
    ///
    /// the [`Widget`][crate::Widget] that the menu is attached to
    #[doc(alias = "gtk_menu_get_attach_widget")]
    #[doc(alias = "get_attach_widget")]
    #[doc(alias = "attach-widget")]
    fn attach_widget(&self) -> Option<Widget> {
        unsafe {
            from_glib_none(ffi::gtk_menu_get_attach_widget(
                self.as_ref().to_glib_none().0,
            ))
        }
    }

    /// Retrieves the number of the monitor on which to show the menu.
    ///
    /// # Returns
    ///
    /// the number of the monitor on which the menu should
    ///  be popped up or -1, if no monitor has been set
    #[doc(alias = "gtk_menu_get_monitor")]
    #[doc(alias = "get_monitor")]
    fn monitor(&self) -> i32 {
        unsafe { ffi::gtk_menu_get_monitor(self.as_ref().to_glib_none().0) }
    }

    /// Returns whether the menu reserves space for toggles and
    /// icons, regardless of their actual presence.
    ///
    /// # Returns
    ///
    /// Whether the menu reserves toggle space
    #[doc(alias = "gtk_menu_get_reserve_toggle_size")]
    #[doc(alias = "get_reserve_toggle_size")]
    #[doc(alias = "reserve-toggle-size")]
    fn must_reserve_toggle_size(&self) -> bool {
        unsafe {
            from_glib(ffi::gtk_menu_get_reserve_toggle_size(
                self.as_ref().to_glib_none().0,
            ))
        }
    }

    /// Places `self` on the given monitor.
    /// ## `monitor`
    /// the monitor to place the menu on
    #[doc(alias = "gtk_menu_place_on_monitor")]
    fn place_on_monitor(&self, monitor: &gdk::Monitor) {
        unsafe {
            ffi::gtk_menu_place_on_monitor(
                self.as_ref().to_glib_none().0,
                monitor.to_glib_none().0,
            );
        }
    }

    /// Removes the menu from the screen.
    #[doc(alias = "gtk_menu_popdown")]
    fn popdown(&self) {
        unsafe {
            ffi::gtk_menu_popdown(self.as_ref().to_glib_none().0);
        }
    }

    /// Displays `self` and makes it available for selection.
    ///
    /// See gtk_menu_popup_at_widget () to pop up a menu at a widget.
    /// gtk_menu_popup_at_rect () also allows you to position a menu at an arbitrary
    /// rectangle.
    ///
    /// `self` will be positioned at the pointer associated with `trigger_event`.
    ///
    /// Properties that influence the behaviour of this function are
    /// [`anchor-hints`][struct@crate::Menu#anchor-hints], [`rect-anchor-dx`][struct@crate::Menu#rect-anchor-dx], [`rect-anchor-dy`][struct@crate::Menu#rect-anchor-dy], and
    /// [`menu-type-hint`][struct@crate::Menu#menu-type-hint]. Connect to the [`popped-up`][struct@crate::Menu#popped-up] signal to find
    /// out how it was actually positioned.
    /// ## `trigger_event`
    /// the `GdkEvent` that initiated this request or
    ///  [`None`] if it's the current event
    #[doc(alias = "gtk_menu_popup_at_pointer")]
    fn popup_at_pointer(&self, trigger_event: Option<&gdk::Event>) {
        unsafe {
            ffi::gtk_menu_popup_at_pointer(
                self.as_ref().to_glib_none().0,
                trigger_event.to_glib_none().0,
            );
        }
    }

    /// Displays `self` and makes it available for selection.
    ///
    /// See gtk_menu_popup_at_widget () and gtk_menu_popup_at_pointer (), which
    /// handle more common cases for popping up menus.
    ///
    /// `self` will be positioned at `rect`, aligning their anchor points. `rect` is
    /// relative to the top-left corner of `rect_window`. `rect_anchor` and
    /// `menu_anchor` determine anchor points on `rect` and `self` to pin together.
    /// `self` can optionally be offset by [`rect-anchor-dx`][struct@crate::Menu#rect-anchor-dx] and
    /// [`rect-anchor-dy`][struct@crate::Menu#rect-anchor-dy].
    ///
    /// Anchors should be specified under the assumption that the text direction is
    /// left-to-right; they will be flipped horizontally automatically if the text
    /// direction is right-to-left.
    ///
    /// Other properties that influence the behaviour of this function are
    /// [`anchor-hints`][struct@crate::Menu#anchor-hints] and [`menu-type-hint`][struct@crate::Menu#menu-type-hint]. Connect to the
    /// [`popped-up`][struct@crate::Menu#popped-up] signal to find out how it was actually positioned.
    /// ## `rect_window`
    /// the [`gdk::Window`][crate::gdk::Window] `rect` is relative to
    /// ## `rect`
    /// the [`gdk::Rectangle`][crate::gdk::Rectangle] to align `self` with
    /// ## `rect_anchor`
    /// the point on `rect` to align with `self`'s anchor point
    /// ## `menu_anchor`
    /// the point on `self` to align with `rect`'s anchor point
    /// ## `trigger_event`
    /// the `GdkEvent` that initiated this request or
    ///  [`None`] if it's the current event
    #[doc(alias = "gtk_menu_popup_at_rect")]
    fn popup_at_rect(
        &self,
        rect_window: &gdk::Window,
        rect: &gdk::Rectangle,
        rect_anchor: gdk::Gravity,
        menu_anchor: gdk::Gravity,
        trigger_event: Option<&gdk::Event>,
    ) {
        unsafe {
            ffi::gtk_menu_popup_at_rect(
                self.as_ref().to_glib_none().0,
                rect_window.to_glib_none().0,
                rect.to_glib_none().0,
                rect_anchor.into_glib(),
                menu_anchor.into_glib(),
                trigger_event.to_glib_none().0,
            );
        }
    }

    /// Displays `self` and makes it available for selection.
    ///
    /// See gtk_menu_popup_at_pointer () to pop up a menu at the master pointer.
    /// gtk_menu_popup_at_rect () also allows you to position a menu at an arbitrary
    /// rectangle.
    ///
    /// ![](popup-anchors.png)
    ///
    /// `self` will be positioned at `widget`, aligning their anchor points.
    /// `widget_anchor` and `menu_anchor` determine anchor points on `widget` and `self`
    /// to pin together. `self` can optionally be offset by [`rect-anchor-dx`][struct@crate::Menu#rect-anchor-dx]
    /// and [`rect-anchor-dy`][struct@crate::Menu#rect-anchor-dy].
    ///
    /// Anchors should be specified under the assumption that the text direction is
    /// left-to-right; they will be flipped horizontally automatically if the text
    /// direction is right-to-left.
    ///
    /// Other properties that influence the behaviour of this function are
    /// [`anchor-hints`][struct@crate::Menu#anchor-hints] and [`menu-type-hint`][struct@crate::Menu#menu-type-hint]. Connect to the
    /// [`popped-up`][struct@crate::Menu#popped-up] signal to find out how it was actually positioned.
    /// ## `widget`
    /// the [`Widget`][crate::Widget] to align `self` with
    /// ## `widget_anchor`
    /// the point on `widget` to align with `self`'s anchor point
    /// ## `menu_anchor`
    /// the point on `self` to align with `widget`'s anchor point
    /// ## `trigger_event`
    /// the `GdkEvent` that initiated this request or
    ///  [`None`] if it's the current event
    #[doc(alias = "gtk_menu_popup_at_widget")]
    fn popup_at_widget(
        &self,
        widget: &impl IsA<Widget>,
        widget_anchor: gdk::Gravity,
        menu_anchor: gdk::Gravity,
        trigger_event: Option<&gdk::Event>,
    ) {
        unsafe {
            ffi::gtk_menu_popup_at_widget(
                self.as_ref().to_glib_none().0,
                widget.as_ref().to_glib_none().0,
                widget_anchor.into_glib(),
                menu_anchor.into_glib(),
                trigger_event.to_glib_none().0,
            );
        }
    }

    /// Moves `child` to a new `position` in the list of `self`
    /// children.
    /// ## `child`
    /// the [`MenuItem`][crate::MenuItem] to move
    /// ## `position`
    /// the new position to place `child`.
    ///  Positions are numbered from 0 to n - 1
    #[doc(alias = "gtk_menu_reorder_child")]
    fn reorder_child(&self, child: &impl IsA<Widget>, position: i32) {
        unsafe {
            ffi::gtk_menu_reorder_child(
                self.as_ref().to_glib_none().0,
                child.as_ref().to_glib_none().0,
                position,
            );
        }
    }

    /// Repositions the menu according to its position function.
    #[doc(alias = "gtk_menu_reposition")]
    fn reposition(&self) {
        unsafe {
            ffi::gtk_menu_reposition(self.as_ref().to_glib_none().0);
        }
    }

    /// Set the [`AccelGroup`][crate::AccelGroup] which holds global accelerators for the
    /// menu. This accelerator group needs to also be added to all windows
    /// that this menu is being used in with [`GtkWindowExt::add_accel_group()`][crate::prelude::GtkWindowExt::add_accel_group()],
    /// in order for those windows to support all the accelerators
    /// contained in this group.
    /// ## `accel_group`
    /// the [`AccelGroup`][crate::AccelGroup] to be associated
    ///  with the menu.
    #[doc(alias = "gtk_menu_set_accel_group")]
    #[doc(alias = "accel-group")]
    fn set_accel_group(&self, accel_group: Option<&impl IsA<AccelGroup>>) {
        unsafe {
            ffi::gtk_menu_set_accel_group(
                self.as_ref().to_glib_none().0,
                accel_group.map(|p| p.as_ref()).to_glib_none().0,
            );
        }
    }

    /// Sets an accelerator path for this menu from which accelerator paths
    /// for its immediate children, its menu items, can be constructed.
    /// The main purpose of this function is to spare the programmer the
    /// inconvenience of having to call [`GtkMenuItemExt::set_accel_path()`][crate::prelude::GtkMenuItemExt::set_accel_path()] on
    /// each menu item that should support runtime user changable accelerators.
    /// Instead, by just calling [`set_accel_path()`][Self::set_accel_path()] on their parent,
    /// each menu item of this menu, that contains a label describing its
    /// purpose, automatically gets an accel path assigned.
    ///
    /// For example, a menu containing menu items “New” and “Exit”, will, after
    /// `gtk_menu_set_accel_path (menu, "`<Gnumeric-Sheet>`/File");` has been
    /// called, assign its items the accel paths: `"`<Gnumeric-Sheet>`/File/New"`
    /// and `"`<Gnumeric-Sheet>`/File/Exit"`.
    ///
    /// Assigning accel paths to menu items then enables the user to change
    /// their accelerators at runtime. More details about accelerator paths
    /// and their default setups can be found at `gtk_accel_map_add_entry()`.
    ///
    /// Note that `accel_path` string will be stored in a `GQuark`. Therefore,
    /// if you pass a static string, you can save some memory by interning
    /// it first with `g_intern_static_string()`.
    /// ## `accel_path`
    /// a valid accelerator path, or [`None`] to unset the path
    #[doc(alias = "gtk_menu_set_accel_path")]
    #[doc(alias = "accel-path")]
    fn set_accel_path(&self, accel_path: Option<&str>) {
        unsafe {
            ffi::gtk_menu_set_accel_path(
                self.as_ref().to_glib_none().0,
                accel_path.to_glib_none().0,
            );
        }
    }

    /// Selects the specified menu item within the menu. This is used by
    /// the [`ComboBox`][crate::ComboBox] and should not be used by anyone else.
    /// ## `index`
    /// the index of the menu item to select. Index values are
    ///  from 0 to n-1
    #[doc(alias = "gtk_menu_set_active")]
    #[doc(alias = "active")]
    fn set_active(&self, index: u32) {
        unsafe {
            ffi::gtk_menu_set_active(self.as_ref().to_glib_none().0, index);
        }
    }

    /// Informs GTK+ on which monitor a menu should be popped up.
    /// See [`Monitor::geometry()`][crate::gdk::Monitor::geometry()].
    ///
    /// This function should be called from a `GtkMenuPositionFunc`
    /// if the menu should not appear on the same monitor as the pointer.
    /// This information can’t be reliably inferred from the coordinates
    /// returned by a `GtkMenuPositionFunc`, since, for very long menus,
    /// these coordinates may extend beyond the monitor boundaries or even
    /// the screen boundaries.
    /// ## `monitor_num`
    /// the number of the monitor on which the menu should
    ///  be popped up
    #[doc(alias = "gtk_menu_set_monitor")]
    #[doc(alias = "monitor")]
    fn set_monitor(&self, monitor_num: i32) {
        unsafe {
            ffi::gtk_menu_set_monitor(self.as_ref().to_glib_none().0, monitor_num);
        }
    }

    /// Sets whether the menu should reserve space for drawing toggles
    /// or icons, regardless of their actual presence.
    /// ## `reserve_toggle_size`
    /// whether to reserve size for toggles
    #[doc(alias = "gtk_menu_set_reserve_toggle_size")]
    #[doc(alias = "reserve-toggle-size")]
    fn set_reserve_toggle_size(&self, reserve_toggle_size: bool) {
        unsafe {
            ffi::gtk_menu_set_reserve_toggle_size(
                self.as_ref().to_glib_none().0,
                reserve_toggle_size.into_glib(),
            );
        }
    }

    /// Sets the [`gdk::Screen`][crate::gdk::Screen] on which the menu will be displayed.
    /// ## `screen`
    /// a [`gdk::Screen`][crate::gdk::Screen], or [`None`] if the screen should be
    ///  determined by the widget the menu is attached to
    #[doc(alias = "gtk_menu_set_screen")]
    fn set_screen(&self, screen: Option<&gdk::Screen>) {
        unsafe {
            ffi::gtk_menu_set_screen(self.as_ref().to_glib_none().0, screen.to_glib_none().0);
        }
    }

    /// Positioning hints for aligning the menu relative to a rectangle.
    ///
    /// These hints determine how the menu should be positioned in the case that
    /// the menu would fall off-screen if placed in its ideal position.
    ///
    /// ![](popup-flip.png)
    ///
    /// For example, [`gdk::AnchorHints::FLIP_Y`][crate::gdk::AnchorHints::FLIP_Y] will replace [`gdk::Gravity::NorthWest`][crate::gdk::Gravity::NorthWest] with
    /// [`gdk::Gravity::SouthWest`][crate::gdk::Gravity::SouthWest] and vice versa if the menu extends beyond the
    /// bottom edge of the monitor.
    ///
    /// See gtk_menu_popup_at_rect (), gtk_menu_popup_at_widget (),
    /// gtk_menu_popup_at_pointer (), [`rect-anchor-dx`][struct@crate::Menu#rect-anchor-dx],
    /// [`rect-anchor-dy`][struct@crate::Menu#rect-anchor-dy], [`menu-type-hint`][struct@crate::Menu#menu-type-hint], and [`popped-up`][struct@crate::Menu#popped-up].
    #[doc(alias = "anchor-hints")]
    fn anchor_hints(&self) -> gdk::AnchorHints {
        ObjectExt::property(self.as_ref(), "anchor-hints")
    }

    /// Positioning hints for aligning the menu relative to a rectangle.
    ///
    /// These hints determine how the menu should be positioned in the case that
    /// the menu would fall off-screen if placed in its ideal position.
    ///
    /// ![](popup-flip.png)
    ///
    /// For example, [`gdk::AnchorHints::FLIP_Y`][crate::gdk::AnchorHints::FLIP_Y] will replace [`gdk::Gravity::NorthWest`][crate::gdk::Gravity::NorthWest] with
    /// [`gdk::Gravity::SouthWest`][crate::gdk::Gravity::SouthWest] and vice versa if the menu extends beyond the
    /// bottom edge of the monitor.
    ///
    /// See gtk_menu_popup_at_rect (), gtk_menu_popup_at_widget (),
    /// gtk_menu_popup_at_pointer (), [`rect-anchor-dx`][struct@crate::Menu#rect-anchor-dx],
    /// [`rect-anchor-dy`][struct@crate::Menu#rect-anchor-dy], [`menu-type-hint`][struct@crate::Menu#menu-type-hint], and [`popped-up`][struct@crate::Menu#popped-up].
    #[doc(alias = "anchor-hints")]
    fn set_anchor_hints(&self, anchor_hints: gdk::AnchorHints) {
        ObjectExt::set_property(self.as_ref(), "anchor-hints", anchor_hints)
    }

    /// The widget the menu is attached to. Setting this property attaches
    /// the menu without a `GtkMenuDetachFunc`. If you need to use a detacher,
    /// use `gtk_menu_attach_to_widget()` directly.
    #[doc(alias = "attach-widget")]
    fn set_attach_widget<P: IsA<Widget>>(&self, attach_widget: Option<&P>) {
        ObjectExt::set_property(self.as_ref(), "attach-widget", attach_widget)
    }

    /// The [`gdk::WindowTypeHint`][crate::gdk::WindowTypeHint] to use for the menu's [`gdk::Window`][crate::gdk::Window].
    ///
    /// See gtk_menu_popup_at_rect (), gtk_menu_popup_at_widget (),
    /// gtk_menu_popup_at_pointer (), [`anchor-hints`][struct@crate::Menu#anchor-hints],
    /// [`rect-anchor-dx`][struct@crate::Menu#rect-anchor-dx], [`rect-anchor-dy`][struct@crate::Menu#rect-anchor-dy], and [`popped-up`][struct@crate::Menu#popped-up].
    #[doc(alias = "menu-type-hint")]
    fn menu_type_hint(&self) -> gdk::WindowTypeHint {
        ObjectExt::property(self.as_ref(), "menu-type-hint")
    }

    /// The [`gdk::WindowTypeHint`][crate::gdk::WindowTypeHint] to use for the menu's [`gdk::Window`][crate::gdk::Window].
    ///
    /// See gtk_menu_popup_at_rect (), gtk_menu_popup_at_widget (),
    /// gtk_menu_popup_at_pointer (), [`anchor-hints`][struct@crate::Menu#anchor-hints],
    /// [`rect-anchor-dx`][struct@crate::Menu#rect-anchor-dx], [`rect-anchor-dy`][struct@crate::Menu#rect-anchor-dy], and [`popped-up`][struct@crate::Menu#popped-up].
    #[doc(alias = "menu-type-hint")]
    fn set_menu_type_hint(&self, menu_type_hint: gdk::WindowTypeHint) {
        ObjectExt::set_property(self.as_ref(), "menu-type-hint", menu_type_hint)
    }

    /// Horizontal offset to apply to the menu, i.e. the rectangle or widget
    /// anchor.
    ///
    /// See gtk_menu_popup_at_rect (), gtk_menu_popup_at_widget (),
    /// gtk_menu_popup_at_pointer (), [`anchor-hints`][struct@crate::Menu#anchor-hints],
    /// [`rect-anchor-dy`][struct@crate::Menu#rect-anchor-dy], [`menu-type-hint`][struct@crate::Menu#menu-type-hint], and [`popped-up`][struct@crate::Menu#popped-up].
    #[doc(alias = "rect-anchor-dx")]
    fn rect_anchor_dx(&self) -> i32 {
        ObjectExt::property(self.as_ref(), "rect-anchor-dx")
    }

    /// Horizontal offset to apply to the menu, i.e. the rectangle or widget
    /// anchor.
    ///
    /// See gtk_menu_popup_at_rect (), gtk_menu_popup_at_widget (),
    /// gtk_menu_popup_at_pointer (), [`anchor-hints`][struct@crate::Menu#anchor-hints],
    /// [`rect-anchor-dy`][struct@crate::Menu#rect-anchor-dy], [`menu-type-hint`][struct@crate::Menu#menu-type-hint], and [`popped-up`][struct@crate::Menu#popped-up].
    #[doc(alias = "rect-anchor-dx")]
    fn set_rect_anchor_dx(&self, rect_anchor_dx: i32) {
        ObjectExt::set_property(self.as_ref(), "rect-anchor-dx", rect_anchor_dx)
    }

    /// Vertical offset to apply to the menu, i.e. the rectangle or widget anchor.
    ///
    /// See gtk_menu_popup_at_rect (), gtk_menu_popup_at_widget (),
    /// gtk_menu_popup_at_pointer (), [`anchor-hints`][struct@crate::Menu#anchor-hints],
    /// [`rect-anchor-dx`][struct@crate::Menu#rect-anchor-dx], [`menu-type-hint`][struct@crate::Menu#menu-type-hint], and [`popped-up`][struct@crate::Menu#popped-up].
    #[doc(alias = "rect-anchor-dy")]
    fn rect_anchor_dy(&self) -> i32 {
        ObjectExt::property(self.as_ref(), "rect-anchor-dy")
    }

    /// Vertical offset to apply to the menu, i.e. the rectangle or widget anchor.
    ///
    /// See gtk_menu_popup_at_rect (), gtk_menu_popup_at_widget (),
    /// gtk_menu_popup_at_pointer (), [`anchor-hints`][struct@crate::Menu#anchor-hints],
    /// [`rect-anchor-dx`][struct@crate::Menu#rect-anchor-dx], [`menu-type-hint`][struct@crate::Menu#menu-type-hint], and [`popped-up`][struct@crate::Menu#popped-up].
    #[doc(alias = "rect-anchor-dy")]
    fn set_rect_anchor_dy(&self, rect_anchor_dy: i32) {
        ObjectExt::set_property(self.as_ref(), "rect-anchor-dy", rect_anchor_dy)
    }

    #[doc(alias = "item.bottom-attach")]
    fn item_bottom_attach<T: IsA<MenuItem>>(&self, item: &T) -> i32 {
        crate::prelude::ContainerExtManual::child_property(
            self.as_ref(),
            &item.clone().upcast(),
            "bottom-attach",
        )
    }

    #[doc(alias = "item.bottom-attach")]
    fn set_item_bottom_attach<T: IsA<MenuItem>>(&self, item: &T, bottom_attach: i32) {
        crate::prelude::ContainerExtManual::child_set_property(
            self.as_ref(),
            &item.clone().upcast(),
            "bottom-attach",
            &bottom_attach,
        )
    }

    #[doc(alias = "item.left-attach")]
    fn item_left_attach<T: IsA<MenuItem>>(&self, item: &T) -> i32 {
        crate::prelude::ContainerExtManual::child_property(
            self.as_ref(),
            &item.clone().upcast(),
            "left-attach",
        )
    }

    #[doc(alias = "item.left-attach")]
    fn set_item_left_attach<T: IsA<MenuItem>>(&self, item: &T, left_attach: i32) {
        crate::prelude::ContainerExtManual::child_set_property(
            self.as_ref(),
            &item.clone().upcast(),
            "left-attach",
            &left_attach,
        )
    }

    #[doc(alias = "item.right-attach")]
    fn item_right_attach<T: IsA<MenuItem>>(&self, item: &T) -> i32 {
        crate::prelude::ContainerExtManual::child_property(
            self.as_ref(),
            &item.clone().upcast(),
            "right-attach",
        )
    }

    #[doc(alias = "item.right-attach")]
    fn set_item_right_attach<T: IsA<MenuItem>>(&self, item: &T, right_attach: i32) {
        crate::prelude::ContainerExtManual::child_set_property(
            self.as_ref(),
            &item.clone().upcast(),
            "right-attach",
            &right_attach,
        )
    }

    #[doc(alias = "item.top-attach")]
    fn item_top_attach<T: IsA<MenuItem>>(&self, item: &T) -> i32 {
        crate::prelude::ContainerExtManual::child_property(
            self.as_ref(),
            &item.clone().upcast(),
            "top-attach",
        )
    }

    #[doc(alias = "item.top-attach")]
    fn set_item_top_attach<T: IsA<MenuItem>>(&self, item: &T, top_attach: i32) {
        crate::prelude::ContainerExtManual::child_set_property(
            self.as_ref(),
            &item.clone().upcast(),
            "top-attach",
            &top_attach,
        )
    }

    /// ## `scroll_type`
    /// a [`ScrollType`][crate::ScrollType]
    #[doc(alias = "move-scroll")]
    fn connect_move_scroll<F: Fn(&Self, ScrollType) + 'static>(&self, f: F) -> SignalHandlerId {
        unsafe extern "C" fn move_scroll_trampoline<
            P: IsA<Menu>,
            F: Fn(&P, ScrollType) + 'static,
        >(
            this: *mut ffi::GtkMenu,
            scroll_type: ffi::GtkScrollType,
            f: glib::ffi::gpointer,
        ) {
            unsafe {
                let f: &F = &*(f as *const F);
                f(
                    Menu::from_glib_borrow(this).unsafe_cast_ref(),
                    from_glib(scroll_type),
                )
            }
        }
        unsafe {
            let f: Box_<F> = Box_::new(f);
            connect_raw(
                self.as_ptr() as *mut _,
                c"move-scroll".as_ptr(),
                Some(std::mem::transmute::<*const (), unsafe extern "C" fn()>(
                    move_scroll_trampoline::<Self, F> as *const (),
                )),
                Box_::into_raw(f),
            )
        }
    }

    fn emit_move_scroll(&self, scroll_type: ScrollType) {
        self.emit_by_name::<()>("move-scroll", &[&scroll_type]);
    }

    //#[doc(alias = "popped-up")]
    //fn connect_popped_up<Unsupported or ignored types>(&self, f: F) -> SignalHandlerId {
    //    Unimplemented flipped_rect: *.Pointer
    //    Unimplemented final_rect: *.Pointer
    //}

    #[doc(alias = "accel-group")]
    fn connect_accel_group_notify<F: Fn(&Self) + 'static>(&self, f: F) -> SignalHandlerId {
        unsafe extern "C" fn notify_accel_group_trampoline<P: IsA<Menu>, F: Fn(&P) + 'static>(
            this: *mut ffi::GtkMenu,
            _param_spec: glib::ffi::gpointer,
            f: glib::ffi::gpointer,
        ) {
            unsafe {
                let f: &F = &*(f as *const F);
                f(Menu::from_glib_borrow(this).unsafe_cast_ref())
            }
        }
        unsafe {
            let f: Box_<F> = Box_::new(f);
            connect_raw(
                self.as_ptr() as *mut _,
                c"notify::accel-group".as_ptr(),
                Some(std::mem::transmute::<*const (), unsafe extern "C" fn()>(
                    notify_accel_group_trampoline::<Self, F> as *const (),
                )),
                Box_::into_raw(f),
            )
        }
    }

    #[doc(alias = "accel-path")]
    fn connect_accel_path_notify<F: Fn(&Self) + 'static>(&self, f: F) -> SignalHandlerId {
        unsafe extern "C" fn notify_accel_path_trampoline<P: IsA<Menu>, F: Fn(&P) + 'static>(
            this: *mut ffi::GtkMenu,
            _param_spec: glib::ffi::gpointer,
            f: glib::ffi::gpointer,
        ) {
            unsafe {
                let f: &F = &*(f as *const F);
                f(Menu::from_glib_borrow(this).unsafe_cast_ref())
            }
        }
        unsafe {
            let f: Box_<F> = Box_::new(f);
            connect_raw(
                self.as_ptr() as *mut _,
                c"notify::accel-path".as_ptr(),
                Some(std::mem::transmute::<*const (), unsafe extern "C" fn()>(
                    notify_accel_path_trampoline::<Self, F> as *const (),
                )),
                Box_::into_raw(f),
            )
        }
    }

    #[doc(alias = "active")]
    fn connect_active_notify<F: Fn(&Self) + 'static>(&self, f: F) -> SignalHandlerId {
        unsafe extern "C" fn notify_active_trampoline<P: IsA<Menu>, F: Fn(&P) + 'static>(
            this: *mut ffi::GtkMenu,
            _param_spec: glib::ffi::gpointer,
            f: glib::ffi::gpointer,
        ) {
            unsafe {
                let f: &F = &*(f as *const F);
                f(Menu::from_glib_borrow(this).unsafe_cast_ref())
            }
        }
        unsafe {
            let f: Box_<F> = Box_::new(f);
            connect_raw(
                self.as_ptr() as *mut _,
                c"notify::active".as_ptr(),
                Some(std::mem::transmute::<*const (), unsafe extern "C" fn()>(
                    notify_active_trampoline::<Self, F> as *const (),
                )),
                Box_::into_raw(f),
            )
        }
    }

    #[doc(alias = "anchor-hints")]
    fn connect_anchor_hints_notify<F: Fn(&Self) + 'static>(&self, f: F) -> SignalHandlerId {
        unsafe extern "C" fn notify_anchor_hints_trampoline<P: IsA<Menu>, F: Fn(&P) + 'static>(
            this: *mut ffi::GtkMenu,
            _param_spec: glib::ffi::gpointer,
            f: glib::ffi::gpointer,
        ) {
            unsafe {
                let f: &F = &*(f as *const F);
                f(Menu::from_glib_borrow(this).unsafe_cast_ref())
            }
        }
        unsafe {
            let f: Box_<F> = Box_::new(f);
            connect_raw(
                self.as_ptr() as *mut _,
                c"notify::anchor-hints".as_ptr(),
                Some(std::mem::transmute::<*const (), unsafe extern "C" fn()>(
                    notify_anchor_hints_trampoline::<Self, F> as *const (),
                )),
                Box_::into_raw(f),
            )
        }
    }

    #[doc(alias = "attach-widget")]
    fn connect_attach_widget_notify<F: Fn(&Self) + 'static>(&self, f: F) -> SignalHandlerId {
        unsafe extern "C" fn notify_attach_widget_trampoline<P: IsA<Menu>, F: Fn(&P) + 'static>(
            this: *mut ffi::GtkMenu,
            _param_spec: glib::ffi::gpointer,
            f: glib::ffi::gpointer,
        ) {
            unsafe {
                let f: &F = &*(f as *const F);
                f(Menu::from_glib_borrow(this).unsafe_cast_ref())
            }
        }
        unsafe {
            let f: Box_<F> = Box_::new(f);
            connect_raw(
                self.as_ptr() as *mut _,
                c"notify::attach-widget".as_ptr(),
                Some(std::mem::transmute::<*const (), unsafe extern "C" fn()>(
                    notify_attach_widget_trampoline::<Self, F> as *const (),
                )),
                Box_::into_raw(f),
            )
        }
    }

    #[doc(alias = "menu-type-hint")]
    fn connect_menu_type_hint_notify<F: Fn(&Self) + 'static>(&self, f: F) -> SignalHandlerId {
        unsafe extern "C" fn notify_menu_type_hint_trampoline<P: IsA<Menu>, F: Fn(&P) + 'static>(
            this: *mut ffi::GtkMenu,
            _param_spec: glib::ffi::gpointer,
            f: glib::ffi::gpointer,
        ) {
            unsafe {
                let f: &F = &*(f as *const F);
                f(Menu::from_glib_borrow(this).unsafe_cast_ref())
            }
        }
        unsafe {
            let f: Box_<F> = Box_::new(f);
            connect_raw(
                self.as_ptr() as *mut _,
                c"notify::menu-type-hint".as_ptr(),
                Some(std::mem::transmute::<*const (), unsafe extern "C" fn()>(
                    notify_menu_type_hint_trampoline::<Self, F> as *const (),
                )),
                Box_::into_raw(f),
            )
        }
    }

    #[doc(alias = "monitor")]
    fn connect_monitor_notify<F: Fn(&Self) + 'static>(&self, f: F) -> SignalHandlerId {
        unsafe extern "C" fn notify_monitor_trampoline<P: IsA<Menu>, F: Fn(&P) + 'static>(
            this: *mut ffi::GtkMenu,
            _param_spec: glib::ffi::gpointer,
            f: glib::ffi::gpointer,
        ) {
            unsafe {
                let f: &F = &*(f as *const F);
                f(Menu::from_glib_borrow(this).unsafe_cast_ref())
            }
        }
        unsafe {
            let f: Box_<F> = Box_::new(f);
            connect_raw(
                self.as_ptr() as *mut _,
                c"notify::monitor".as_ptr(),
                Some(std::mem::transmute::<*const (), unsafe extern "C" fn()>(
                    notify_monitor_trampoline::<Self, F> as *const (),
                )),
                Box_::into_raw(f),
            )
        }
    }

    #[doc(alias = "rect-anchor-dx")]
    fn connect_rect_anchor_dx_notify<F: Fn(&Self) + 'static>(&self, f: F) -> SignalHandlerId {
        unsafe extern "C" fn notify_rect_anchor_dx_trampoline<P: IsA<Menu>, F: Fn(&P) + 'static>(
            this: *mut ffi::GtkMenu,
            _param_spec: glib::ffi::gpointer,
            f: glib::ffi::gpointer,
        ) {
            unsafe {
                let f: &F = &*(f as *const F);
                f(Menu::from_glib_borrow(this).unsafe_cast_ref())
            }
        }
        unsafe {
            let f: Box_<F> = Box_::new(f);
            connect_raw(
                self.as_ptr() as *mut _,
                c"notify::rect-anchor-dx".as_ptr(),
                Some(std::mem::transmute::<*const (), unsafe extern "C" fn()>(
                    notify_rect_anchor_dx_trampoline::<Self, F> as *const (),
                )),
                Box_::into_raw(f),
            )
        }
    }

    #[doc(alias = "rect-anchor-dy")]
    fn connect_rect_anchor_dy_notify<F: Fn(&Self) + 'static>(&self, f: F) -> SignalHandlerId {
        unsafe extern "C" fn notify_rect_anchor_dy_trampoline<P: IsA<Menu>, F: Fn(&P) + 'static>(
            this: *mut ffi::GtkMenu,
            _param_spec: glib::ffi::gpointer,
            f: glib::ffi::gpointer,
        ) {
            unsafe {
                let f: &F = &*(f as *const F);
                f(Menu::from_glib_borrow(this).unsafe_cast_ref())
            }
        }
        unsafe {
            let f: Box_<F> = Box_::new(f);
            connect_raw(
                self.as_ptr() as *mut _,
                c"notify::rect-anchor-dy".as_ptr(),
                Some(std::mem::transmute::<*const (), unsafe extern "C" fn()>(
                    notify_rect_anchor_dy_trampoline::<Self, F> as *const (),
                )),
                Box_::into_raw(f),
            )
        }
    }

    #[doc(alias = "reserve-toggle-size")]
    fn connect_reserve_toggle_size_notify<F: Fn(&Self) + 'static>(&self, f: F) -> SignalHandlerId {
        unsafe extern "C" fn notify_reserve_toggle_size_trampoline<
            P: IsA<Menu>,
            F: Fn(&P) + 'static,
        >(
            this: *mut ffi::GtkMenu,
            _param_spec: glib::ffi::gpointer,
            f: glib::ffi::gpointer,
        ) {
            unsafe {
                let f: &F = &*(f as *const F);
                f(Menu::from_glib_borrow(this).unsafe_cast_ref())
            }
        }
        unsafe {
            let f: Box_<F> = Box_::new(f);
            connect_raw(
                self.as_ptr() as *mut _,
                c"notify::reserve-toggle-size".as_ptr(),
                Some(std::mem::transmute::<*const (), unsafe extern "C" fn()>(
                    notify_reserve_toggle_size_trampoline::<Self, F> as *const (),
                )),
                Box_::into_raw(f),
            )
        }
    }
}

impl<O: IsA<Menu>> GtkMenuExt for O {}