// 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::Buildable;
use crate::Container;
use crate::DirectionType;
use crate::MenuDirectionType;
use crate::MenuItem;
use crate::Widget;
use glib::object::Cast;
use glib::object::IsA;
use glib::object::ObjectExt;
use glib::signal::connect_raw;
use glib::signal::SignalHandlerId;
use glib::translate::*;
use std::boxed::Box as Box_;
use std::fmt;
use std::mem::transmute;

glib::wrapper! {
    /// A [`MenuShell`][crate::MenuShell] is the abstract base class used to derive the
    /// [`Menu`][crate::Menu] and [`MenuBar`][crate::MenuBar] subclasses.
    ///
    /// A [`MenuShell`][crate::MenuShell] is a container of [`MenuItem`][crate::MenuItem] objects arranged
    /// in a list which can be navigated, selected, and activated by the
    /// user to perform application functions. A [`MenuItem`][crate::MenuItem] can have a
    /// submenu associated with it, allowing for nested hierarchical menus.
    ///
    /// # Terminology
    ///
    /// A menu item can be “selected”, this means that it is displayed
    /// in the prelight state, and if it has a submenu, that submenu
    /// will be popped up.
    ///
    /// A menu is “active” when it is visible onscreen and the user
    /// is selecting from it. A menubar is not active until the user
    /// clicks on one of its menuitems. When a menu is active,
    /// passing the mouse over a submenu will pop it up.
    ///
    /// There is also is a concept of the current menu and a current
    /// menu item. The current menu item is the selected menu item
    /// that is furthest down in the hierarchy. (Every active menu shell
    /// does not necessarily contain a selected menu item, but if
    /// it does, then the parent menu shell must also contain
    /// a selected menu item.) The current menu is the menu that
    /// contains the current menu item. It will always have a GTK
    /// grab and receive all key presses.
    ///
    /// This is an Abstract Base Class, you cannot instantiate it.
    ///
    /// # Implements
    ///
    /// [`MenuShellExt`][trait@crate::prelude::MenuShellExt], [`ContainerExt`][trait@crate::prelude::ContainerExt], [`WidgetExt`][trait@crate::prelude::WidgetExt], [`trait@glib::ObjectExt`], [`BuildableExt`][trait@crate::prelude::BuildableExt], [`ContainerExtManual`][trait@crate::prelude::ContainerExtManual], [`WidgetExtManual`][trait@crate::prelude::WidgetExtManual], [`BuildableExtManual`][trait@crate::prelude::BuildableExtManual]
    #[doc(alias = "GtkMenuShell")]
    pub struct MenuShell(Object<ffi::GtkMenuShell, ffi::GtkMenuShellClass>) @extends Container, Widget, @implements Buildable;

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

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

/// Trait containing all [`struct@MenuShell`] methods.
///
/// # Implementors
///
/// [`MenuBar`][struct@crate::MenuBar], [`MenuShell`][struct@crate::MenuShell], [`Menu`][struct@crate::Menu]
pub trait MenuShellExt: 'static {
    /// Activates the menu item within the menu shell.
    /// ## `menu_item`
    /// the [`MenuItem`][crate::MenuItem] to activate
    /// ## `force_deactivate`
    /// if [`true`], force the deactivation of the
    ///  menu shell after the menu item is activated
    #[doc(alias = "gtk_menu_shell_activate_item")]
    fn activate_item(&self, menu_item: &impl IsA<Widget>, force_deactivate: bool);

    /// Adds a new [`MenuItem`][crate::MenuItem] to the end of the menu shell's
    /// item list.
    /// ## `child`
    /// The [`MenuItem`][crate::MenuItem] to add
    #[doc(alias = "gtk_menu_shell_append")]
    fn append(&self, child: &impl IsA<MenuItem>);

    /// Establishes a binding between a [`MenuShell`][crate::MenuShell] and a [`gio::MenuModel`][crate::gio::MenuModel].
    ///
    /// The contents of `shell` are removed and then refilled with menu items
    /// according to `model`. When `model` changes, `shell` is updated.
    /// Calling this function twice on `shell` with different `model` will
    /// cause the first binding to be replaced with a binding to the new
    /// model. If `model` is [`None`] then any previous binding is undone and
    /// all children are removed.
    ///
    /// `with_separators` determines if toplevel items (eg: sections) have
    /// separators inserted between them. This is typically desired for
    /// menus but doesn’t make sense for menubars.
    ///
    /// If `action_namespace` is non-[`None`] then the effect is as if all
    /// actions mentioned in the `model` have their names prefixed with the
    /// namespace, plus a dot. For example, if the action “quit” is
    /// mentioned and `action_namespace` is “app” then the effective action
    /// name is “app.quit”.
    ///
    /// This function uses [`Actionable`][crate::Actionable] to define the action name and
    /// target values on the created menu items. If you want to use an
    /// action group other than “app” and “win”, or if you want to use a
    /// [`MenuShell`][crate::MenuShell] outside of a [`ApplicationWindow`][crate::ApplicationWindow], then you will need
    /// to attach your own action group to the widget hierarchy using
    /// [`WidgetExt::insert_action_group()`][crate::prelude::WidgetExt::insert_action_group()]. As an example, if you created a
    /// group with a “quit” action and inserted it with the name “mygroup”
    /// then you would use the action name “mygroup.quit” in your
    /// [`gio::MenuModel`][crate::gio::MenuModel].
    ///
    /// For most cases you are probably better off using
    /// [`Menu::from_model()`][crate::Menu::from_model()] or [`MenuBar::from_model()`][crate::MenuBar::from_model()] or just
    /// directly passing the [`gio::MenuModel`][crate::gio::MenuModel] to [`GtkApplicationExt::set_app_menu()`][crate::prelude::GtkApplicationExt::set_app_menu()] or
    /// [`GtkApplicationExt::set_menubar()`][crate::prelude::GtkApplicationExt::set_menubar()].
    /// ## `model`
    /// the [`gio::MenuModel`][crate::gio::MenuModel] to bind to or [`None`] to remove
    ///  binding
    /// ## `action_namespace`
    /// the namespace for actions in `model`
    /// ## `with_separators`
    /// [`true`] if toplevel items in `shell` should have
    ///  separators between them
    #[doc(alias = "gtk_menu_shell_bind_model")]
    fn bind_model(
        &self,
        model: Option<&impl IsA<gio::MenuModel>>,
        action_namespace: Option<&str>,
        with_separators: bool,
    );

    /// Cancels the selection within the menu shell.
    #[doc(alias = "gtk_menu_shell_cancel")]
    fn cancel(&self);

    /// Deactivates the menu shell.
    ///
    /// Typically this results in the menu shell being erased
    /// from the screen.
    #[doc(alias = "gtk_menu_shell_deactivate")]
    fn deactivate(&self);

    /// Deselects the currently selected item from the menu shell,
    /// if any.
    #[doc(alias = "gtk_menu_shell_deselect")]
    fn deselect(&self);

    /// Gets the parent menu shell.
    ///
    /// The parent menu shell of a submenu is the [`Menu`][crate::Menu] or [`MenuBar`][crate::MenuBar]
    /// from which it was opened up.
    ///
    /// # Returns
    ///
    /// the parent [`MenuShell`][crate::MenuShell]
    #[doc(alias = "gtk_menu_shell_get_parent_shell")]
    #[doc(alias = "get_parent_shell")]
    fn parent_shell(&self) -> Option<Widget>;

    /// Gets the currently selected item.
    ///
    /// # Returns
    ///
    /// the currently selected item
    #[doc(alias = "gtk_menu_shell_get_selected_item")]
    #[doc(alias = "get_selected_item")]
    fn selected_item(&self) -> Option<Widget>;

    /// Returns [`true`] if the menu shell will take the keyboard focus on popup.
    ///
    /// # Returns
    ///
    /// [`true`] if the menu shell will take the keyboard focus on popup.
    #[doc(alias = "gtk_menu_shell_get_take_focus")]
    #[doc(alias = "get_take_focus")]
    fn takes_focus(&self) -> bool;

    /// Adds a new [`MenuItem`][crate::MenuItem] to the menu shell’s item list
    /// at the position indicated by `position`.
    /// ## `child`
    /// The [`MenuItem`][crate::MenuItem] to add
    /// ## `position`
    /// The position in the item list where `child`
    ///  is added. Positions are numbered from 0 to n-1
    #[doc(alias = "gtk_menu_shell_insert")]
    fn insert(&self, child: &impl IsA<Widget>, position: i32);

    /// Adds a new [`MenuItem`][crate::MenuItem] to the beginning of the menu shell's
    /// item list.
    /// ## `child`
    /// The [`MenuItem`][crate::MenuItem] to add
    #[doc(alias = "gtk_menu_shell_prepend")]
    fn prepend(&self, child: &impl IsA<Widget>);

    /// Select the first visible or selectable child of the menu shell;
    /// don’t select tearoff items unless the only item is a tearoff
    /// item.
    /// ## `search_sensitive`
    /// if [`true`], search for the first selectable
    ///  menu item, otherwise select nothing if
    ///  the first item isn’t sensitive. This
    ///  should be [`false`] if the menu is being
    ///  popped up initially.
    #[doc(alias = "gtk_menu_shell_select_first")]
    fn select_first(&self, search_sensitive: bool);

    /// Selects the menu item from the menu shell.
    /// ## `menu_item`
    /// The [`MenuItem`][crate::MenuItem] to select
    #[doc(alias = "gtk_menu_shell_select_item")]
    fn select_item(&self, menu_item: &impl IsA<Widget>);

    /// If `take_focus` is [`true`] (the default) the menu shell will take
    /// the keyboard focus so that it will receive all keyboard events
    /// which is needed to enable keyboard navigation in menus.
    ///
    /// Setting `take_focus` to [`false`] is useful only for special applications
    /// like virtual keyboard implementations which should not take keyboard
    /// focus.
    ///
    /// The `take_focus` state of a menu or menu bar is automatically
    /// propagated to submenus whenever a submenu is popped up, so you
    /// don’t have to worry about recursively setting it for your entire
    /// menu hierarchy. Only when programmatically picking a submenu and
    /// popping it up manually, the `take_focus` property of the submenu
    /// needs to be set explicitly.
    ///
    /// Note that setting it to [`false`] has side-effects:
    ///
    /// If the focus is in some other app, it keeps the focus and keynav in
    /// the menu doesn’t work. Consequently, keynav on the menu will only
    /// work if the focus is on some toplevel owned by the onscreen keyboard.
    ///
    /// To avoid confusing the user, menus with `take_focus` set to [`false`]
    /// should not display mnemonics or accelerators, since it cannot be
    /// guaranteed that they will work.
    ///
    /// See also `gdk_keyboard_grab()`
    /// ## `take_focus`
    /// [`true`] if the menu shell should take the keyboard
    ///  focus on popup
    #[doc(alias = "gtk_menu_shell_set_take_focus")]
    fn set_take_focus(&self, take_focus: bool);

    /// An action signal that activates the current menu item within
    /// the menu shell.
    /// ## `force_hide`
    /// if [`true`], hide the menu after activating the menu item
    #[doc(alias = "activate-current")]
    fn connect_activate_current<F: Fn(&Self, bool) + 'static>(&self, f: F) -> SignalHandlerId;

    fn emit_activate_current(&self, force_hide: bool);

    /// An action signal which cancels the selection within the menu shell.
    /// Causes the `signal::MenuShell::selection-done` signal to be emitted.
    #[doc(alias = "cancel")]
    fn connect_cancel<F: Fn(&Self) + 'static>(&self, f: F) -> SignalHandlerId;

    fn emit_cancel(&self);

    /// A keybinding signal which moves the focus in the
    /// given `direction`.
    /// ## `direction`
    /// the direction to cycle in
    #[doc(alias = "cycle-focus")]
    fn connect_cycle_focus<F: Fn(&Self, DirectionType) + 'static>(&self, f: F) -> SignalHandlerId;

    fn emit_cycle_focus(&self, direction: DirectionType);

    /// This signal is emitted when a menu shell is deactivated.
    #[doc(alias = "deactivate")]
    fn connect_deactivate<F: Fn(&Self) + 'static>(&self, f: F) -> SignalHandlerId;

    /// 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.
    /// ## `child`
    /// the [`MenuItem`][crate::MenuItem] that is being inserted
    /// ## `position`
    /// the position at which the insert occurs
    #[doc(alias = "insert")]
    fn connect_insert<F: Fn(&Self, &Widget, i32) + 'static>(&self, f: F) -> SignalHandlerId;

    /// An keybinding signal which moves the current menu item
    /// in the direction specified by `direction`.
    /// ## `direction`
    /// the direction to move
    #[doc(alias = "move-current")]
    fn connect_move_current<F: Fn(&Self, MenuDirectionType) + 'static>(
        &self,
        f: F,
    ) -> SignalHandlerId;

    fn emit_move_current(&self, direction: MenuDirectionType);

    /// The ::move-selected signal is emitted to move the selection to
    /// another item.
    /// ## `distance`
    /// +1 to move to the next item, -1 to move to the previous
    ///
    /// # Returns
    ///
    /// [`true`] to stop the signal emission, [`false`] to continue
    #[doc(alias = "move-selected")]
    fn connect_move_selected<F: Fn(&Self, i32) -> glib::signal::Inhibit + 'static>(
        &self,
        f: F,
    ) -> SignalHandlerId;

    /// This signal is emitted when a selection has been
    /// completed within a menu shell.
    #[doc(alias = "selection-done")]
    fn connect_selection_done<F: Fn(&Self) + 'static>(&self, f: F) -> SignalHandlerId;

    #[doc(alias = "take-focus")]
    fn connect_take_focus_notify<F: Fn(&Self) + 'static>(&self, f: F) -> SignalHandlerId;
}

impl<O: IsA<MenuShell>> MenuShellExt for O {
    fn activate_item(&self, menu_item: &impl IsA<Widget>, force_deactivate: bool) {
        unsafe {
            ffi::gtk_menu_shell_activate_item(
                self.as_ref().to_glib_none().0,
                menu_item.as_ref().to_glib_none().0,
                force_deactivate.into_glib(),
            );
        }
    }

    fn append(&self, child: &impl IsA<MenuItem>) {
        unsafe {
            ffi::gtk_menu_shell_append(
                self.as_ref().to_glib_none().0,
                child.as_ref().to_glib_none().0,
            );
        }
    }

    fn bind_model(
        &self,
        model: Option<&impl IsA<gio::MenuModel>>,
        action_namespace: Option<&str>,
        with_separators: bool,
    ) {
        unsafe {
            ffi::gtk_menu_shell_bind_model(
                self.as_ref().to_glib_none().0,
                model.map(|p| p.as_ref()).to_glib_none().0,
                action_namespace.to_glib_none().0,
                with_separators.into_glib(),
            );
        }
    }

    fn cancel(&self) {
        unsafe {
            ffi::gtk_menu_shell_cancel(self.as_ref().to_glib_none().0);
        }
    }

    fn deactivate(&self) {
        unsafe {
            ffi::gtk_menu_shell_deactivate(self.as_ref().to_glib_none().0);
        }
    }

    fn deselect(&self) {
        unsafe {
            ffi::gtk_menu_shell_deselect(self.as_ref().to_glib_none().0);
        }
    }

    fn parent_shell(&self) -> Option<Widget> {
        unsafe {
            from_glib_none(ffi::gtk_menu_shell_get_parent_shell(
                self.as_ref().to_glib_none().0,
            ))
        }
    }

    fn selected_item(&self) -> Option<Widget> {
        unsafe {
            from_glib_none(ffi::gtk_menu_shell_get_selected_item(
                self.as_ref().to_glib_none().0,
            ))
        }
    }

    fn takes_focus(&self) -> bool {
        unsafe {
            from_glib(ffi::gtk_menu_shell_get_take_focus(
                self.as_ref().to_glib_none().0,
            ))
        }
    }

    fn insert(&self, child: &impl IsA<Widget>, position: i32) {
        unsafe {
            ffi::gtk_menu_shell_insert(
                self.as_ref().to_glib_none().0,
                child.as_ref().to_glib_none().0,
                position,
            );
        }
    }

    fn prepend(&self, child: &impl IsA<Widget>) {
        unsafe {
            ffi::gtk_menu_shell_prepend(
                self.as_ref().to_glib_none().0,
                child.as_ref().to_glib_none().0,
            );
        }
    }

    fn select_first(&self, search_sensitive: bool) {
        unsafe {
            ffi::gtk_menu_shell_select_first(
                self.as_ref().to_glib_none().0,
                search_sensitive.into_glib(),
            );
        }
    }

    fn select_item(&self, menu_item: &impl IsA<Widget>) {
        unsafe {
            ffi::gtk_menu_shell_select_item(
                self.as_ref().to_glib_none().0,
                menu_item.as_ref().to_glib_none().0,
            );
        }
    }

    fn set_take_focus(&self, take_focus: bool) {
        unsafe {
            ffi::gtk_menu_shell_set_take_focus(
                self.as_ref().to_glib_none().0,
                take_focus.into_glib(),
            );
        }
    }

    fn connect_activate_current<F: Fn(&Self, bool) + 'static>(&self, f: F) -> SignalHandlerId {
        unsafe extern "C" fn activate_current_trampoline<
            P: IsA<MenuShell>,
            F: Fn(&P, bool) + 'static,
        >(
            this: *mut ffi::GtkMenuShell,
            force_hide: glib::ffi::gboolean,
            f: glib::ffi::gpointer,
        ) {
            let f: &F = &*(f as *const F);
            f(
                MenuShell::from_glib_borrow(this).unsafe_cast_ref(),
                from_glib(force_hide),
            )
        }
        unsafe {
            let f: Box_<F> = Box_::new(f);
            connect_raw(
                self.as_ptr() as *mut _,
                b"activate-current\0".as_ptr() as *const _,
                Some(transmute::<_, unsafe extern "C" fn()>(
                    activate_current_trampoline::<Self, F> as *const (),
                )),
                Box_::into_raw(f),
            )
        }
    }

    fn emit_activate_current(&self, force_hide: bool) {
        self.emit_by_name::<()>("activate-current", &[&force_hide]);
    }

    fn connect_cancel<F: Fn(&Self) + 'static>(&self, f: F) -> SignalHandlerId {
        unsafe extern "C" fn cancel_trampoline<P: IsA<MenuShell>, F: Fn(&P) + 'static>(
            this: *mut ffi::GtkMenuShell,
            f: glib::ffi::gpointer,
        ) {
            let f: &F = &*(f as *const F);
            f(MenuShell::from_glib_borrow(this).unsafe_cast_ref())
        }
        unsafe {
            let f: Box_<F> = Box_::new(f);
            connect_raw(
                self.as_ptr() as *mut _,
                b"cancel\0".as_ptr() as *const _,
                Some(transmute::<_, unsafe extern "C" fn()>(
                    cancel_trampoline::<Self, F> as *const (),
                )),
                Box_::into_raw(f),
            )
        }
    }

    fn emit_cancel(&self) {
        self.emit_by_name::<()>("cancel", &[]);
    }

    fn connect_cycle_focus<F: Fn(&Self, DirectionType) + 'static>(&self, f: F) -> SignalHandlerId {
        unsafe extern "C" fn cycle_focus_trampoline<
            P: IsA<MenuShell>,
            F: Fn(&P, DirectionType) + 'static,
        >(
            this: *mut ffi::GtkMenuShell,
            direction: ffi::GtkDirectionType,
            f: glib::ffi::gpointer,
        ) {
            let f: &F = &*(f as *const F);
            f(
                MenuShell::from_glib_borrow(this).unsafe_cast_ref(),
                from_glib(direction),
            )
        }
        unsafe {
            let f: Box_<F> = Box_::new(f);
            connect_raw(
                self.as_ptr() as *mut _,
                b"cycle-focus\0".as_ptr() as *const _,
                Some(transmute::<_, unsafe extern "C" fn()>(
                    cycle_focus_trampoline::<Self, F> as *const (),
                )),
                Box_::into_raw(f),
            )
        }
    }

    fn emit_cycle_focus(&self, direction: DirectionType) {
        self.emit_by_name::<()>("cycle-focus", &[&direction]);
    }

    fn connect_deactivate<F: Fn(&Self) + 'static>(&self, f: F) -> SignalHandlerId {
        unsafe extern "C" fn deactivate_trampoline<P: IsA<MenuShell>, F: Fn(&P) + 'static>(
            this: *mut ffi::GtkMenuShell,
            f: glib::ffi::gpointer,
        ) {
            let f: &F = &*(f as *const F);
            f(MenuShell::from_glib_borrow(this).unsafe_cast_ref())
        }
        unsafe {
            let f: Box_<F> = Box_::new(f);
            connect_raw(
                self.as_ptr() as *mut _,
                b"deactivate\0".as_ptr() as *const _,
                Some(transmute::<_, unsafe extern "C" fn()>(
                    deactivate_trampoline::<Self, F> as *const (),
                )),
                Box_::into_raw(f),
            )
        }
    }

    fn connect_insert<F: Fn(&Self, &Widget, i32) + 'static>(&self, f: F) -> SignalHandlerId {
        unsafe extern "C" fn insert_trampoline<
            P: IsA<MenuShell>,
            F: Fn(&P, &Widget, i32) + 'static,
        >(
            this: *mut ffi::GtkMenuShell,
            child: *mut ffi::GtkWidget,
            position: libc::c_int,
            f: glib::ffi::gpointer,
        ) {
            let f: &F = &*(f as *const F);
            f(
                MenuShell::from_glib_borrow(this).unsafe_cast_ref(),
                &from_glib_borrow(child),
                position,
            )
        }
        unsafe {
            let f: Box_<F> = Box_::new(f);
            connect_raw(
                self.as_ptr() as *mut _,
                b"insert\0".as_ptr() as *const _,
                Some(transmute::<_, unsafe extern "C" fn()>(
                    insert_trampoline::<Self, F> as *const (),
                )),
                Box_::into_raw(f),
            )
        }
    }

    fn connect_move_current<F: Fn(&Self, MenuDirectionType) + 'static>(
        &self,
        f: F,
    ) -> SignalHandlerId {
        unsafe extern "C" fn move_current_trampoline<
            P: IsA<MenuShell>,
            F: Fn(&P, MenuDirectionType) + 'static,
        >(
            this: *mut ffi::GtkMenuShell,
            direction: ffi::GtkMenuDirectionType,
            f: glib::ffi::gpointer,
        ) {
            let f: &F = &*(f as *const F);
            f(
                MenuShell::from_glib_borrow(this).unsafe_cast_ref(),
                from_glib(direction),
            )
        }
        unsafe {
            let f: Box_<F> = Box_::new(f);
            connect_raw(
                self.as_ptr() as *mut _,
                b"move-current\0".as_ptr() as *const _,
                Some(transmute::<_, unsafe extern "C" fn()>(
                    move_current_trampoline::<Self, F> as *const (),
                )),
                Box_::into_raw(f),
            )
        }
    }

    fn emit_move_current(&self, direction: MenuDirectionType) {
        self.emit_by_name::<()>("move-current", &[&direction]);
    }

    fn connect_move_selected<F: Fn(&Self, i32) -> glib::signal::Inhibit + 'static>(
        &self,
        f: F,
    ) -> SignalHandlerId {
        unsafe extern "C" fn move_selected_trampoline<
            P: IsA<MenuShell>,
            F: Fn(&P, i32) -> glib::signal::Inhibit + 'static,
        >(
            this: *mut ffi::GtkMenuShell,
            distance: libc::c_int,
            f: glib::ffi::gpointer,
        ) -> glib::ffi::gboolean {
            let f: &F = &*(f as *const F);
            f(
                MenuShell::from_glib_borrow(this).unsafe_cast_ref(),
                distance,
            )
            .into_glib()
        }
        unsafe {
            let f: Box_<F> = Box_::new(f);
            connect_raw(
                self.as_ptr() as *mut _,
                b"move-selected\0".as_ptr() as *const _,
                Some(transmute::<_, unsafe extern "C" fn()>(
                    move_selected_trampoline::<Self, F> as *const (),
                )),
                Box_::into_raw(f),
            )
        }
    }

    fn connect_selection_done<F: Fn(&Self) + 'static>(&self, f: F) -> SignalHandlerId {
        unsafe extern "C" fn selection_done_trampoline<P: IsA<MenuShell>, F: Fn(&P) + 'static>(
            this: *mut ffi::GtkMenuShell,
            f: glib::ffi::gpointer,
        ) {
            let f: &F = &*(f as *const F);
            f(MenuShell::from_glib_borrow(this).unsafe_cast_ref())
        }
        unsafe {
            let f: Box_<F> = Box_::new(f);
            connect_raw(
                self.as_ptr() as *mut _,
                b"selection-done\0".as_ptr() as *const _,
                Some(transmute::<_, unsafe extern "C" fn()>(
                    selection_done_trampoline::<Self, F> as *const (),
                )),
                Box_::into_raw(f),
            )
        }
    }

    fn connect_take_focus_notify<F: Fn(&Self) + 'static>(&self, f: F) -> SignalHandlerId {
        unsafe extern "C" fn notify_take_focus_trampoline<
            P: IsA<MenuShell>,
            F: Fn(&P) + 'static,
        >(
            this: *mut ffi::GtkMenuShell,
            _param_spec: glib::ffi::gpointer,
            f: glib::ffi::gpointer,
        ) {
            let f: &F = &*(f as *const F);
            f(MenuShell::from_glib_borrow(this).unsafe_cast_ref())
        }
        unsafe {
            let f: Box_<F> = Box_::new(f);
            connect_raw(
                self.as_ptr() as *mut _,
                b"notify::take-focus\0".as_ptr() as *const _,
                Some(transmute::<_, unsafe extern "C" fn()>(
                    notify_take_focus_trampoline::<Self, F> as *const (),
                )),
                Box_::into_raw(f),
            )
        }
    }
}

impl fmt::Display for MenuShell {
    fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
        f.write_str("MenuShell")
    }
}