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

use crate::Accessible;
use crate::AccessibleRole;
use crate::Align;
use crate::Application;
use crate::Buildable;
use crate::ConstraintTarget;
use crate::LayoutManager;
use crate::Native;
use crate::Overflow;
use crate::Root;
use crate::ShortcutManager;
use crate::ShortcutsWindow;
use crate::Widget;
use crate::Window;
use glib::object::Cast;
use glib::object::IsA;
use glib::signal::connect_raw;
use glib::signal::SignalHandlerId;
use glib::translate::*;
use glib::StaticType;
use glib::ToValue;
use std::boxed::Box as Box_;
use std::fmt;
use std::mem::transmute;

glib::wrapper! {
    /// [`ApplicationWindow`][crate::ApplicationWindow] is a [`Window`][crate::Window] subclass that integrates with
    /// [`Application`][crate::Application].
    ///
    /// Notably, [`ApplicationWindow`][crate::ApplicationWindow] can handle an application menubar.
    ///
    /// This class implements the `GActionGroup` and `GActionMap` interfaces,
    /// to let you add window-specific actions that will be exported by the
    /// associated [`gio::Application`][crate::gio::Application], together with its application-wide
    /// actions. Window-specific actions are prefixed with the “win.”
    /// prefix and application-wide actions are prefixed with the “app.”
    /// prefix. Actions must be addressed with the prefixed name when
    /// referring to them from a `GMenuModel`.
    ///
    /// Note that widgets that are placed inside a [`ApplicationWindow`][crate::ApplicationWindow]
    /// can also activate these actions, if they implement the
    /// [`Actionable`][crate::Actionable] interface.
    ///
    /// The settings `property::Settings::gtk-shell-shows-app-menu` and
    /// `property::Settings::gtk-shell-shows-menubar` tell GTK whether the
    /// desktop environment is showing the application menu and menubar
    /// models outside the application as part of the desktop shell.
    /// For instance, on OS X, both menus will be displayed remotely;
    /// on Windows neither will be.
    ///
    /// If the desktop environment does not display the menubar, then
    /// [`ApplicationWindow`][crate::ApplicationWindow] will automatically show a menubar for it.
    /// This behaviour can be overridden with the
    /// `property::ApplicationWindow::show-menubar` property. If the
    /// desktop environment does not display the application menu, then
    /// it will automatically be included in the menubar or in the windows
    /// client-side decorations.
    ///
    /// See [`PopoverMenu`][crate::PopoverMenu] for information about the XML language
    /// used by [`Builder`][crate::Builder] for menu models.
    ///
    /// See also: [``GtkApplicationExt::set_menubar()``][crate::prelude::`GtkApplicationExt::set_menubar()`].
    ///
    /// ## A GtkApplicationWindow with a menubar
    ///
    /// The code sample below shows how to set up a [`ApplicationWindow`][crate::ApplicationWindow]
    /// with a menu bar defined on the [`gio::Application`][crate::gio::Application]:
    ///
    /// **⚠️ The following code is in c ⚠️**
    ///
    /// ```c
    /// GtkApplication *app = gtk_application_new ("org.gtk.test", 0);
    ///
    /// GtkBuilder *builder = gtk_builder_new_from_string (
    ///     "<interface>"
    ///     "  <menu id='menubar'>"
    ///     "    <submenu>"
    ///     "      <attribute name='label' translatable='yes'>_Edit</attribute>"
    ///     "      <item>"
    ///     "        <attribute name='label' translatable='yes'>_Copy</attribute>"
    ///     "        <attribute name='action'>win.copy</attribute>"
    ///     "      </item>"
    ///     "      <item>"
    ///     "        <attribute name='label' translatable='yes'>_Paste</attribute>"
    ///     "        <attribute name='action'>win.paste</attribute>"
    ///     "      </item>"
    ///     "    </submenu>"
    ///     "  </menu>"
    ///     "</interface>",
    ///     -1);
    ///
    /// GMenuModel *menubar = G_MENU_MODEL (gtk_builder_get_object (builder, "menubar"));
    /// gtk_application_set_menubar (GTK_APPLICATION (app), menubar);
    /// g_object_unref (builder);
    ///
    /// // ...
    ///
    /// GtkWidget *window = gtk_application_window_new (app);
    /// ```
    ///
    /// # Implements
    ///
    /// [`ApplicationWindowExt`][trait@crate::prelude::ApplicationWindowExt], [`GtkWindowExt`][trait@crate::prelude::GtkWindowExt], [`WidgetExt`][trait@crate::prelude::WidgetExt], [`trait@glib::ObjectExt`], [`AccessibleExt`][trait@crate::prelude::AccessibleExt], [`BuildableExt`][trait@crate::prelude::BuildableExt], [`ConstraintTargetExt`][trait@crate::prelude::ConstraintTargetExt], [`NativeExt`][trait@crate::prelude::NativeExt], [`RootExt`][trait@crate::prelude::RootExt], [`ShortcutManagerExt`][trait@crate::prelude::ShortcutManagerExt], [`trait@gio::prelude::ActionGroupExt`], [`trait@gio::prelude::ActionMapExt`], [`WidgetExtManual`][trait@crate::prelude::WidgetExtManual], [`AccessibleExtManual`][trait@crate::prelude::AccessibleExtManual]
    #[doc(alias = "GtkApplicationWindow")]
    pub struct ApplicationWindow(Object<ffi::GtkApplicationWindow, ffi::GtkApplicationWindowClass>) @extends Window, Widget, @implements Accessible, Buildable, ConstraintTarget, Native, Root, ShortcutManager, gio::ActionGroup, gio::ActionMap;

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

impl ApplicationWindow {
    /// Creates a new [`ApplicationWindow`][crate::ApplicationWindow].
    /// ## `application`
    /// a [`Application`][crate::Application]
    ///
    /// # Returns
    ///
    /// a newly created [`ApplicationWindow`][crate::ApplicationWindow]
    #[doc(alias = "gtk_application_window_new")]
    pub fn new(application: &impl IsA<Application>) -> ApplicationWindow {
        skip_assert_initialized!();
        unsafe {
            Widget::from_glib_none(ffi::gtk_application_window_new(
                application.as_ref().to_glib_none().0,
            ))
            .unsafe_cast()
        }
    }

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

impl Default for ApplicationWindow {
    fn default() -> Self {
        glib::object::Object::new::<Self>(&[])
            .expect("Can't construct ApplicationWindow object with default parameters")
    }
}

#[derive(Clone, Default)]
// rustdoc-stripper-ignore-next
/// A [builder-pattern] type to construct [`ApplicationWindow`] objects.
///
/// [builder-pattern]: https://doc.rust-lang.org/1.0.0/style/ownership/builders.html
pub struct ApplicationWindowBuilder {
    show_menubar: Option<bool>,
    application: Option<Application>,
    child: Option<Widget>,
    decorated: Option<bool>,
    default_height: Option<i32>,
    default_widget: Option<Widget>,
    default_width: Option<i32>,
    deletable: Option<bool>,
    destroy_with_parent: Option<bool>,
    display: Option<gdk::Display>,
    focus_visible: Option<bool>,
    focus_widget: Option<Widget>,
    fullscreened: Option<bool>,
    #[cfg(any(feature = "v4_2", feature = "dox"))]
    #[cfg_attr(feature = "dox", doc(cfg(feature = "v4_2")))]
    handle_menubar_accel: Option<bool>,
    hide_on_close: Option<bool>,
    icon_name: Option<String>,
    maximized: Option<bool>,
    mnemonics_visible: Option<bool>,
    modal: Option<bool>,
    resizable: Option<bool>,
    startup_id: Option<String>,
    title: Option<String>,
    transient_for: Option<Window>,
    can_focus: Option<bool>,
    can_target: Option<bool>,
    css_classes: Option<Vec<String>>,
    css_name: Option<String>,
    cursor: Option<gdk::Cursor>,
    focus_on_click: Option<bool>,
    focusable: Option<bool>,
    halign: Option<Align>,
    has_tooltip: Option<bool>,
    height_request: Option<i32>,
    hexpand: Option<bool>,
    hexpand_set: Option<bool>,
    layout_manager: Option<LayoutManager>,
    margin_bottom: Option<i32>,
    margin_end: Option<i32>,
    margin_start: Option<i32>,
    margin_top: Option<i32>,
    name: Option<String>,
    opacity: Option<f64>,
    overflow: Option<Overflow>,
    receives_default: Option<bool>,
    sensitive: Option<bool>,
    tooltip_markup: Option<String>,
    tooltip_text: Option<String>,
    valign: Option<Align>,
    vexpand: Option<bool>,
    vexpand_set: Option<bool>,
    visible: Option<bool>,
    width_request: Option<i32>,
    accessible_role: Option<AccessibleRole>,
}

impl ApplicationWindowBuilder {
    // rustdoc-stripper-ignore-next
    /// Create a new [`ApplicationWindowBuilder`].
    pub fn new() -> Self {
        Self::default()
    }

    // rustdoc-stripper-ignore-next
    /// Build the [`ApplicationWindow`].
    pub fn build(self) -> ApplicationWindow {
        let mut properties: Vec<(&str, &dyn ToValue)> = vec![];
        if let Some(ref show_menubar) = self.show_menubar {
            properties.push(("show-menubar", show_menubar));
        }
        if let Some(ref application) = self.application {
            properties.push(("application", application));
        }
        if let Some(ref child) = self.child {
            properties.push(("child", child));
        }
        if let Some(ref decorated) = self.decorated {
            properties.push(("decorated", decorated));
        }
        if let Some(ref default_height) = self.default_height {
            properties.push(("default-height", default_height));
        }
        if let Some(ref default_widget) = self.default_widget {
            properties.push(("default-widget", default_widget));
        }
        if let Some(ref default_width) = self.default_width {
            properties.push(("default-width", default_width));
        }
        if let Some(ref deletable) = self.deletable {
            properties.push(("deletable", deletable));
        }
        if let Some(ref destroy_with_parent) = self.destroy_with_parent {
            properties.push(("destroy-with-parent", destroy_with_parent));
        }
        if let Some(ref display) = self.display {
            properties.push(("display", display));
        }
        if let Some(ref focus_visible) = self.focus_visible {
            properties.push(("focus-visible", focus_visible));
        }
        if let Some(ref focus_widget) = self.focus_widget {
            properties.push(("focus-widget", focus_widget));
        }
        if let Some(ref fullscreened) = self.fullscreened {
            properties.push(("fullscreened", fullscreened));
        }
        #[cfg(any(feature = "v4_2", feature = "dox"))]
        if let Some(ref handle_menubar_accel) = self.handle_menubar_accel {
            properties.push(("handle-menubar-accel", handle_menubar_accel));
        }
        if let Some(ref hide_on_close) = self.hide_on_close {
            properties.push(("hide-on-close", hide_on_close));
        }
        if let Some(ref icon_name) = self.icon_name {
            properties.push(("icon-name", icon_name));
        }
        if let Some(ref maximized) = self.maximized {
            properties.push(("maximized", maximized));
        }
        if let Some(ref mnemonics_visible) = self.mnemonics_visible {
            properties.push(("mnemonics-visible", mnemonics_visible));
        }
        if let Some(ref modal) = self.modal {
            properties.push(("modal", modal));
        }
        if let Some(ref resizable) = self.resizable {
            properties.push(("resizable", resizable));
        }
        if let Some(ref startup_id) = self.startup_id {
            properties.push(("startup-id", startup_id));
        }
        if let Some(ref title) = self.title {
            properties.push(("title", title));
        }
        if let Some(ref transient_for) = self.transient_for {
            properties.push(("transient-for", transient_for));
        }
        if let Some(ref can_focus) = self.can_focus {
            properties.push(("can-focus", can_focus));
        }
        if let Some(ref can_target) = self.can_target {
            properties.push(("can-target", can_target));
        }
        if let Some(ref css_classes) = self.css_classes {
            properties.push(("css-classes", css_classes));
        }
        if let Some(ref css_name) = self.css_name {
            properties.push(("css-name", css_name));
        }
        if let Some(ref cursor) = self.cursor {
            properties.push(("cursor", cursor));
        }
        if let Some(ref focus_on_click) = self.focus_on_click {
            properties.push(("focus-on-click", focus_on_click));
        }
        if let Some(ref focusable) = self.focusable {
            properties.push(("focusable", focusable));
        }
        if let Some(ref halign) = self.halign {
            properties.push(("halign", halign));
        }
        if let Some(ref has_tooltip) = self.has_tooltip {
            properties.push(("has-tooltip", has_tooltip));
        }
        if let Some(ref height_request) = self.height_request {
            properties.push(("height-request", height_request));
        }
        if let Some(ref hexpand) = self.hexpand {
            properties.push(("hexpand", hexpand));
        }
        if let Some(ref hexpand_set) = self.hexpand_set {
            properties.push(("hexpand-set", hexpand_set));
        }
        if let Some(ref layout_manager) = self.layout_manager {
            properties.push(("layout-manager", layout_manager));
        }
        if let Some(ref margin_bottom) = self.margin_bottom {
            properties.push(("margin-bottom", margin_bottom));
        }
        if let Some(ref margin_end) = self.margin_end {
            properties.push(("margin-end", margin_end));
        }
        if let Some(ref margin_start) = self.margin_start {
            properties.push(("margin-start", margin_start));
        }
        if let Some(ref margin_top) = self.margin_top {
            properties.push(("margin-top", margin_top));
        }
        if let Some(ref name) = self.name {
            properties.push(("name", name));
        }
        if let Some(ref opacity) = self.opacity {
            properties.push(("opacity", opacity));
        }
        if let Some(ref overflow) = self.overflow {
            properties.push(("overflow", overflow));
        }
        if let Some(ref receives_default) = self.receives_default {
            properties.push(("receives-default", receives_default));
        }
        if let Some(ref sensitive) = self.sensitive {
            properties.push(("sensitive", sensitive));
        }
        if let Some(ref tooltip_markup) = self.tooltip_markup {
            properties.push(("tooltip-markup", tooltip_markup));
        }
        if let Some(ref tooltip_text) = self.tooltip_text {
            properties.push(("tooltip-text", tooltip_text));
        }
        if let Some(ref valign) = self.valign {
            properties.push(("valign", valign));
        }
        if let Some(ref vexpand) = self.vexpand {
            properties.push(("vexpand", vexpand));
        }
        if let Some(ref vexpand_set) = self.vexpand_set {
            properties.push(("vexpand-set", vexpand_set));
        }
        if let Some(ref visible) = self.visible {
            properties.push(("visible", visible));
        }
        if let Some(ref width_request) = self.width_request {
            properties.push(("width-request", width_request));
        }
        if let Some(ref accessible_role) = self.accessible_role {
            properties.push(("accessible-role", accessible_role));
        }
        glib::Object::new::<ApplicationWindow>(&properties)
            .expect("Failed to create an instance of ApplicationWindow")
    }

    /// If this property is [`true`], the window will display a menubar
    /// unless it is shown by the desktop shell.
    ///
    /// See [``GtkApplicationExt::set_menubar()``][crate::prelude::`GtkApplicationExt::set_menubar()`].
    ///
    /// If [`false`], the window will not display a menubar, regardless
    /// of whether the desktop shell is showing it or not.
    pub fn show_menubar(mut self, show_menubar: bool) -> Self {
        self.show_menubar = Some(show_menubar);
        self
    }

    /// The [`Application`][crate::Application] associated with the window.
    ///
    /// The application will be kept alive for at least as long as it
    /// has any windows associated with it (see `g_application_hold()`
    /// for a way to keep it alive without windows).
    ///
    /// Normally, the connection between the application and the window
    /// will remain until the window is destroyed, but you can explicitly
    /// remove it by setting the :application property to [`None`].
    pub fn application(mut self, application: &impl IsA<Application>) -> Self {
        self.application = Some(application.clone().upcast());
        self
    }

    /// The child widget.
    pub fn child(mut self, child: &impl IsA<Widget>) -> Self {
        self.child = Some(child.clone().upcast());
        self
    }

    /// Whether the window should have a frame (also known as *decorations*).
    pub fn decorated(mut self, decorated: bool) -> Self {
        self.decorated = Some(decorated);
        self
    }

    /// The default height of the window.
    pub fn default_height(mut self, default_height: i32) -> Self {
        self.default_height = Some(default_height);
        self
    }

    /// The default widget.
    pub fn default_widget(mut self, default_widget: &impl IsA<Widget>) -> Self {
        self.default_widget = Some(default_widget.clone().upcast());
        self
    }

    /// The default width of the window.
    pub fn default_width(mut self, default_width: i32) -> Self {
        self.default_width = Some(default_width);
        self
    }

    /// Whether the window frame should have a close button.
    pub fn deletable(mut self, deletable: bool) -> Self {
        self.deletable = Some(deletable);
        self
    }

    /// If this window should be destroyed when the parent is destroyed.
    pub fn destroy_with_parent(mut self, destroy_with_parent: bool) -> Self {
        self.destroy_with_parent = Some(destroy_with_parent);
        self
    }

    /// The display that will display this window.
    pub fn display(mut self, display: &impl IsA<gdk::Display>) -> Self {
        self.display = Some(display.clone().upcast());
        self
    }

    /// Whether 'focus rectangles' are currently visible in this window.
    ///
    /// This property is maintained by GTK based on user input
    /// and should not be set by applications.
    pub fn focus_visible(mut self, focus_visible: bool) -> Self {
        self.focus_visible = Some(focus_visible);
        self
    }

    /// The focus widget.
    pub fn focus_widget(mut self, focus_widget: &impl IsA<Widget>) -> Self {
        self.focus_widget = Some(focus_widget.clone().upcast());
        self
    }

    /// Whether the window is fullscreen.
    ///
    /// Setting this property is the equivalent of calling
    /// [``GtkWindowExt::fullscreen()``][crate::prelude::`GtkWindowExt::fullscreen()`] or [``GtkWindowExt::unfullscreen()``][crate::prelude::`GtkWindowExt::unfullscreen()`];
    /// either operation is asynchronous, which means you will need to
    /// connect to the ::notify signal in order to know whether the
    /// operation was successful.
    pub fn fullscreened(mut self, fullscreened: bool) -> Self {
        self.fullscreened = Some(fullscreened);
        self
    }

    /// Whether the window frame should handle F10 for activating
    /// menubars.
    #[cfg(any(feature = "v4_2", feature = "dox"))]
    #[cfg_attr(feature = "dox", doc(cfg(feature = "v4_2")))]
    pub fn handle_menubar_accel(mut self, handle_menubar_accel: bool) -> Self {
        self.handle_menubar_accel = Some(handle_menubar_accel);
        self
    }

    /// If this window should be hidden when the users clicks the close button.
    pub fn hide_on_close(mut self, hide_on_close: bool) -> Self {
        self.hide_on_close = Some(hide_on_close);
        self
    }

    /// Specifies the name of the themed icon to use as the window icon.
    ///
    /// See [`IconTheme`][crate::IconTheme] for more details.
    pub fn icon_name(mut self, icon_name: &str) -> Self {
        self.icon_name = Some(icon_name.to_string());
        self
    }

    /// Whether the window is maximized.
    ///
    /// Setting this property is the equivalent of calling
    /// [``GtkWindowExt::maximize()``][crate::prelude::`GtkWindowExt::maximize()`] or [``GtkWindowExt::unmaximize()``][crate::prelude::`GtkWindowExt::unmaximize()`];
    /// either operation is asynchronous, which means you will need to
    /// connect to the ::notify signal in order to know whether the
    /// operation was successful.
    pub fn maximized(mut self, maximized: bool) -> Self {
        self.maximized = Some(maximized);
        self
    }

    /// Whether mnemonics are currently visible in this window.
    ///
    /// This property is maintained by GTK based on user input,
    /// and should not be set by applications.
    pub fn mnemonics_visible(mut self, mnemonics_visible: bool) -> Self {
        self.mnemonics_visible = Some(mnemonics_visible);
        self
    }

    /// If [`true`], the window is modal.
    pub fn modal(mut self, modal: bool) -> Self {
        self.modal = Some(modal);
        self
    }

    /// If [`true`], users can resize the window.
    pub fn resizable(mut self, resizable: bool) -> Self {
        self.resizable = Some(resizable);
        self
    }

    /// A write-only property for setting window's startup notification identifier.
    pub fn startup_id(mut self, startup_id: &str) -> Self {
        self.startup_id = Some(startup_id.to_string());
        self
    }

    /// The title of the window.
    pub fn title(mut self, title: &str) -> Self {
        self.title = Some(title.to_string());
        self
    }

    /// The transient parent of the window.
    pub fn transient_for(mut self, transient_for: &impl IsA<Window>) -> Self {
        self.transient_for = Some(transient_for.clone().upcast());
        self
    }

    /// Whether the widget or any of its descendents can accept
    /// the input focus.
    ///
    /// This property is meant to be set by widget implementations,
    /// typically in their instance init function.
    pub fn can_focus(mut self, can_focus: bool) -> Self {
        self.can_focus = Some(can_focus);
        self
    }

    /// Whether the widget can receive pointer events.
    pub fn can_target(mut self, can_target: bool) -> Self {
        self.can_target = Some(can_target);
        self
    }

    /// A list of css classes applied to this widget.
    pub fn css_classes(mut self, css_classes: Vec<String>) -> Self {
        self.css_classes = Some(css_classes);
        self
    }

    /// The name of this widget in the CSS tree.
    ///
    /// This property is meant to be set by widget implementations,
    /// typically in their instance init function.
    pub fn css_name(mut self, css_name: &str) -> Self {
        self.css_name = Some(css_name.to_string());
        self
    }

    /// The cursor used by `widget`.
    pub fn cursor(mut self, cursor: &gdk::Cursor) -> Self {
        self.cursor = Some(cursor.clone());
        self
    }

    /// Whether the widget should grab focus when it is clicked with the mouse.
    ///
    /// This property is only relevant for widgets that can take focus.
    pub fn focus_on_click(mut self, focus_on_click: bool) -> Self {
        self.focus_on_click = Some(focus_on_click);
        self
    }

    /// Whether this widget itself will accept the input focus.
    pub fn focusable(mut self, focusable: bool) -> Self {
        self.focusable = Some(focusable);
        self
    }

    /// How to distribute horizontal space if widget gets extra space.
    pub fn halign(mut self, halign: Align) -> Self {
        self.halign = Some(halign);
        self
    }

    /// Enables or disables the emission of the ::query-tooltip signal on `widget`.
    ///
    /// A value of [`true`] indicates that `widget` can have a tooltip, in this case
    /// the widget will be queried using `signal::Widget::query-tooltip` to
    /// determine whether it will provide a tooltip or not.
    pub fn has_tooltip(mut self, has_tooltip: bool) -> Self {
        self.has_tooltip = Some(has_tooltip);
        self
    }

    /// Override for height request of the widget.
    ///
    /// If this is -1, the natural request will be used.
    pub fn height_request(mut self, height_request: i32) -> Self {
        self.height_request = Some(height_request);
        self
    }

    /// Whether to expand horizontally.
    pub fn hexpand(mut self, hexpand: bool) -> Self {
        self.hexpand = Some(hexpand);
        self
    }

    /// Whether to use the `hexpand` property.
    pub fn hexpand_set(mut self, hexpand_set: bool) -> Self {
        self.hexpand_set = Some(hexpand_set);
        self
    }

    /// The [`LayoutManager`][crate::LayoutManager] instance to use to compute the preferred size
    /// of the widget, and allocate its children.
    ///
    /// This property is meant to be set by widget implementations,
    /// typically in their instance init function.
    pub fn layout_manager(mut self, layout_manager: &impl IsA<LayoutManager>) -> Self {
        self.layout_manager = Some(layout_manager.clone().upcast());
        self
    }

    /// 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(mut self, margin_bottom: i32) -> Self {
        self.margin_bottom = Some(margin_bottom);
        self
    }

    /// 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(mut self, margin_end: i32) -> Self {
        self.margin_end = Some(margin_end);
        self
    }

    /// 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(mut self, margin_start: i32) -> Self {
        self.margin_start = Some(margin_start);
        self
    }

    /// 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(mut self, margin_top: i32) -> Self {
        self.margin_top = Some(margin_top);
        self
    }

    /// The name of the widget.
    pub fn name(mut self, name: &str) -> Self {
        self.name = Some(name.to_string());
        self
    }

    /// The requested opacity of the widget.
    pub fn opacity(mut self, opacity: f64) -> Self {
        self.opacity = Some(opacity);
        self
    }

    /// How content outside the widget's content area is treated.
    ///
    /// This property is meant to be set by widget implementations,
    /// typically in their instance init function.
    pub fn overflow(mut self, overflow: Overflow) -> Self {
        self.overflow = Some(overflow);
        self
    }

    /// Whether the widget will receive the default action when it is focused.
    pub fn receives_default(mut self, receives_default: bool) -> Self {
        self.receives_default = Some(receives_default);
        self
    }

    /// Whether the widget responds to input.
    pub fn sensitive(mut self, sensitive: bool) -> Self {
        self.sensitive = Some(sensitive);
        self
    }

    /// Sets the text of tooltip to be the given string, which is marked up
    /// with Pango markup.
    ///
    /// 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`]:
    /// `property::Widget::has-tooltip` will automatically be set to [`true`]
    /// and there will be taken care of `signal::Widget::query-tooltip` in
    /// the default signal handler.
    ///
    /// Note that if both `property::Widget::tooltip-text` and
    /// `property::Widget::tooltip-markup` are set, the last one wins.
    pub fn tooltip_markup(mut self, tooltip_markup: &str) -> Self {
        self.tooltip_markup = Some(tooltip_markup.to_string());
        self
    }

    /// 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`]:
    /// `property::Widget::has-tooltip` will automatically be set to [`true`]
    /// and there will be taken care of `signal::Widget::query-tooltip` in
    /// the default signal handler.
    ///
    /// Note that if both `property::Widget::tooltip-text` and
    /// `property::Widget::tooltip-markup` are set, the last one wins.
    pub fn tooltip_text(mut self, tooltip_text: &str) -> Self {
        self.tooltip_text = Some(tooltip_text.to_string());
        self
    }

    /// How to distribute vertical space if widget gets extra space.
    pub fn valign(mut self, valign: Align) -> Self {
        self.valign = Some(valign);
        self
    }

    /// Whether to expand vertically.
    pub fn vexpand(mut self, vexpand: bool) -> Self {
        self.vexpand = Some(vexpand);
        self
    }

    /// Whether to use the `vexpand` property.
    pub fn vexpand_set(mut self, vexpand_set: bool) -> Self {
        self.vexpand_set = Some(vexpand_set);
        self
    }

    /// Whether the widget is visible.
    pub fn visible(mut self, visible: bool) -> Self {
        self.visible = Some(visible);
        self
    }

    /// Override for width request of the widget.
    ///
    /// If this is -1, the natural request will be used.
    pub fn width_request(mut self, width_request: i32) -> Self {
        self.width_request = Some(width_request);
        self
    }

    /// The accessible role of the given [`Accessible`][crate::Accessible] implementation.
    ///
    /// The accessible role cannot be changed once set.
    pub fn accessible_role(mut self, accessible_role: AccessibleRole) -> Self {
        self.accessible_role = Some(accessible_role);
        self
    }
}

pub const NONE_APPLICATION_WINDOW: Option<&ApplicationWindow> = None;

/// Trait containing all [`struct@ApplicationWindow`] methods.
///
/// # Implementors
///
/// [`ApplicationWindow`][struct@crate::ApplicationWindow]
pub trait ApplicationWindowExt: 'static {
    /// Gets the [`ShortcutsWindow`][crate::ShortcutsWindow] that is associated with `self`.
    ///
    /// See [``set_help_overlay()``][`Self::set_help_overlay()`].
    ///
    /// # Returns
    ///
    /// the help overlay associated
    ///  with `self`
    #[doc(alias = "gtk_application_window_get_help_overlay")]
    #[doc(alias = "get_help_overlay")]
    fn help_overlay(&self) -> Option<ShortcutsWindow>;

    /// Returns the unique ID of the window.
    ///
    ///  If the window has not yet been added to a [`Application`][crate::Application], returns `0`.
    ///
    /// # Returns
    ///
    /// the unique ID for `self`, or `0` if the window
    ///  has not yet been added to a [`Application`][crate::Application]
    #[doc(alias = "gtk_application_window_get_id")]
    #[doc(alias = "get_id")]
    fn id(&self) -> u32;

    /// Returns whether the window will display a menubar for the app menu
    /// and menubar as needed.
    ///
    /// # Returns
    ///
    /// [`true`] if `self` will display a menubar when needed
    #[doc(alias = "gtk_application_window_get_show_menubar")]
    #[doc(alias = "get_show_menubar")]
    fn shows_menubar(&self) -> bool;

    /// Associates a shortcuts window with the application window.
    ///
    /// Additionally, sets up an action with the name
    /// `win.show-help-overlay` to present it.
    ///
    /// `self` takes responsibility for destroying `help_overlay`.
    /// ## `help_overlay`
    /// a [`ShortcutsWindow`][crate::ShortcutsWindow]
    #[doc(alias = "gtk_application_window_set_help_overlay")]
    fn set_help_overlay(&self, help_overlay: Option<&ShortcutsWindow>);

    /// Sets whether the window will display a menubar for the app menu
    /// and menubar as needed.
    /// ## `show_menubar`
    /// whether to show a menubar when needed
    #[doc(alias = "gtk_application_window_set_show_menubar")]
    fn set_show_menubar(&self, show_menubar: bool);

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

impl<O: IsA<ApplicationWindow>> ApplicationWindowExt for O {
    fn help_overlay(&self) -> Option<ShortcutsWindow> {
        unsafe {
            from_glib_none(ffi::gtk_application_window_get_help_overlay(
                self.as_ref().to_glib_none().0,
            ))
        }
    }

    fn id(&self) -> u32 {
        unsafe { ffi::gtk_application_window_get_id(self.as_ref().to_glib_none().0) }
    }

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

    fn set_help_overlay(&self, help_overlay: Option<&ShortcutsWindow>) {
        unsafe {
            ffi::gtk_application_window_set_help_overlay(
                self.as_ref().to_glib_none().0,
                help_overlay.to_glib_none().0,
            );
        }
    }

    fn set_show_menubar(&self, show_menubar: bool) {
        unsafe {
            ffi::gtk_application_window_set_show_menubar(
                self.as_ref().to_glib_none().0,
                show_menubar.into_glib(),
            );
        }
    }

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

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