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

use crate::CenteringPolicy;
use glib::{
    prelude::*,
    signal::{connect_raw, SignalHandlerId},
    translate::*,
};
use std::{boxed::Box as Box_, fmt, mem::transmute};

glib::wrapper! {
    /// A title bar widget.
    ///
    /// [`HeaderBar`][crate::HeaderBar] is similar to [`gtk::HeaderBar`][crate::gtk::HeaderBar] but is designed to fix
    /// some of its shortcomings for adaptive applications.
    ///
    /// [`HeaderBar`][crate::HeaderBar] doesn't force the custom title widget to be vertically
    /// centered, hence allowing it to fill up the whole height, which is e.g. needed
    /// for [`ViewSwitcher`][crate::ViewSwitcher].
    ///
    /// When used in a mobile dialog, [`HeaderBar`][crate::HeaderBar] will replace its window
    /// decorations by a back button allowing to close it. It doesn't have to be its
    /// direct child and you can use any complex contraption you like as the dialog's
    /// titlebar.
    ///
    /// [`HeaderBar`][crate::HeaderBar] can be used in window's content area rather than titlebar, and
    /// will still be draggable and will handle right click, middle click and double
    /// click as expected from a titlebar. This is particularly useful with
    /// [`Window`][crate::Window] or [`ApplicationWindow`][crate::ApplicationWindow].
    ///
    /// ## CSS nodes
    ///
    /// [`HeaderBar`][crate::HeaderBar] has a single CSS node with name `headerbar`.
    ///
    /// ## Properties
    ///
    ///
    /// #### `centering-policy`
    ///  The policy for aligning the center widget.
    ///
    /// Readable | Writeable
    ///
    ///
    /// #### `custom-title`
    ///  Custom title widget to display.
    ///
    /// Readable | Writeable
    ///
    ///
    /// #### `decoration-layout`
    ///  The decoration layout for buttons.
    ///
    /// If this property is not set, the
    /// [`gtk-decoration-layout`][struct@crate::Gtk::Settings#gtk-decoration-layout] setting is used.
    ///
    /// There can be valid reasons for overriding the setting, such as a header bar
    /// design that does not allow for buttons to take room on the right, or only
    /// offers room for a single close button. Split header bars are another example
    /// for overriding the setting.
    ///
    /// The format of the string is button names, separated by commas. A colon
    /// separates the buttons that should appear on the start from those on the
    /// end. Recognized button names are minimize, maximize, close, icon (the
    /// window icon) and menu (a menu button for the fallback app menu).
    ///
    /// For example, “menu:minimize,maximize,close” specifies a menu on the left, and
    /// minimize, maximize and close buttons on the right.
    ///
    /// Readable | Writeable
    ///
    ///
    /// #### `decoration-layout-set`
    ///  Whether [`decoration-layout`][struct@crate::HeaderBar#decoration-layout] is set.
    ///
    /// Readable | Writeable
    ///
    ///
    /// #### `has-subtitle`
    ///  Whether to reserve space for a subtitle, even if none is currently set.
    ///
    /// Readable | Writeable
    ///
    ///
    /// #### `interpolate-size`
    ///  Whether the size should smoothly change when changing between children.
    ///
    /// If `TRUE`, the header bar will interpolate its size between the one of the
    /// previous visible child and the one of the new visible child, according to
    /// the set transition duration and the orientation, e.g. if the orientation is
    /// horizontal, it will interpolate the its height.
    ///
    /// Readable | Writeable
    ///
    ///
    /// #### `show-close-button`
    ///  Whether to show window decorations.
    ///
    /// Which buttons are actually shown and where is determined by the
    /// [`decoration-layout`][struct@crate::HeaderBar#decoration-layout] property, and by the state of the
    /// window (e.g. a close button will not be shown if the window can't be
    /// closed).
    ///
    /// Readable | Writeable
    ///
    ///
    /// #### `spacing`
    ///  The amount of space between children.
    ///
    /// Readable | Writeable
    ///
    ///
    /// #### `subtitle`
    ///  The subtitle to display.
    ///
    /// Readable | Writeable
    ///
    ///
    /// #### `title`
    ///  The title to display.
    ///
    /// Readable | Writeable
    ///
    ///
    /// #### `transition-duration`
    ///  The transition duration, in milliseconds.
    ///
    /// Readable | Writeable
    ///
    ///
    /// #### `transition-running`
    ///  Whether or not the transition is currently running.
    ///
    /// Readable
    /// <details><summary><h4>Container</h4></summary>
    ///
    ///
    /// #### `border-width`
    ///  Readable | Writeable
    ///
    ///
    /// #### `child`
    ///  Writeable
    ///
    ///
    /// #### `resize-mode`
    ///  Readable | Writeable
    /// </details>
    /// <details><summary><h4>Widget</h4></summary>
    ///
    ///
    /// #### `app-paintable`
    ///  Readable | Writeable
    ///
    ///
    /// #### `can-default`
    ///  Readable | Writeable
    ///
    ///
    /// #### `can-focus`
    ///  Readable | Writeable
    ///
    ///
    /// #### `composite-child`
    ///  Readable
    ///
    ///
    /// #### `double-buffered`
    ///  Whether the widget is double buffered.
    ///
    /// Readable | Writeable
    ///
    ///
    /// #### `events`
    ///  Readable | Writeable
    ///
    ///
    /// #### `expand`
    ///  Whether to expand in both directions. Setting this sets both #GtkWidget:hexpand and #GtkWidget:vexpand
    ///
    /// Readable | Writeable
    ///
    ///
    /// #### `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 | Writeable
    ///
    ///
    /// #### `halign`
    ///  How to distribute horizontal space if widget gets extra space, see #GtkAlign
    ///
    /// Readable | Writeable
    ///
    ///
    /// #### `has-default`
    ///  Readable | Writeable
    ///
    ///
    /// #### `has-focus`
    ///  Readable | Writeable
    ///
    ///
    /// #### `has-tooltip`
    ///  Enables or disables the emission of #GtkWidget::query-tooltip on @widget.
    /// A value of [`true`] indicates that @widget can have a tooltip, in this case
    /// the widget will be queried using #GtkWidget::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 | Writeable
    ///
    ///
    /// #### `height-request`
    ///  Readable | Writeable
    ///
    ///
    /// #### `hexpand`
    ///  Whether to expand horizontally. See gtk_widget_set_hexpand().
    ///
    /// Readable | Writeable
    ///
    ///
    /// #### `hexpand-set`
    ///  Whether to use the #GtkWidget:hexpand property. See gtk_widget_get_hexpand_set().
    ///
    /// Readable | Writeable
    ///
    ///
    /// #### `is-focus`
    ///  Readable | Writeable
    ///
    ///
    /// #### `margin`
    ///  Sets all four sides' margin at once. If read, returns max
    /// margin on any side.
    ///
    /// Readable | Writeable
    ///
    ///
    /// #### `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
    /// gtk_widget_set_size_request() for example.
    ///
    /// Readable | Writeable
    ///
    ///
    /// #### `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
    /// gtk_widget_set_size_request() for example.
    ///
    /// Readable | Writeable
    ///
    ///
    /// #### `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
    /// gtk_widget_set_size_request() for example.
    ///
    /// Readable | Writeable
    ///
    ///
    /// #### `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
    /// gtk_widget_set_size_request() for example.
    ///
    /// Readable | Writeable
    ///
    ///
    /// #### `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
    /// gtk_widget_set_size_request() for example.
    ///
    /// Readable | Writeable
    ///
    ///
    /// #### `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
    /// gtk_widget_set_size_request() for example.
    ///
    /// Readable | Writeable
    ///
    ///
    /// #### `name`
    ///  Readable | Writeable
    ///
    ///
    /// #### `no-show-all`
    ///  Readable | Writeable
    ///
    ///
    /// #### `opacity`
    ///  The requested opacity of the widget. See gtk_widget_set_opacity() for
    /// more details about window opacity.
    ///
    /// Before 3.8 this was only available in GtkWindow
    ///
    /// Readable | Writeable
    ///
    ///
    /// #### `parent`
    ///  Readable | Writeable
    ///
    ///
    /// #### `receives-default`
    ///  Readable | Writeable
    ///
    ///
    /// #### `scale-factor`
    ///  The scale factor of the widget. See gtk_widget_get_scale_factor() for
    /// more details about widget scaling.
    ///
    /// Readable
    ///
    ///
    /// #### `sensitive`
    ///  Readable | Writeable
    ///
    ///
    /// #### `style`
    ///  The style of the widget, which contains information about how it will look (colors, etc).
    ///
    /// Readable | Writeable
    ///
    ///
    /// #### `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 gtk_tooltip_set_markup().
    ///
    /// This is a convenience property which will take care of getting the
    /// tooltip shown if the given string is not [`None`]: #GtkWidget:has-tooltip
    /// will automatically be set to [`true`] and there will be taken care of
    /// #GtkWidget::query-tooltip in the default signal handler.
    ///
    /// Note that if both #GtkWidget:tooltip-text and #GtkWidget:tooltip-markup
    /// are set, the last one wins.
    ///
    /// Readable | Writeable
    ///
    ///
    /// #### `tooltip-text`
    ///  Sets the text of tooltip to be the given string.
    ///
    /// Also see gtk_tooltip_set_text().
    ///
    /// This is a convenience property which will take care of getting the
    /// tooltip shown if the given string is not [`None`]: #GtkWidget:has-tooltip
    /// will automatically be set to [`true`] and there will be taken care of
    /// #GtkWidget::query-tooltip in the default signal handler.
    ///
    /// Note that if both #GtkWidget:tooltip-text and #GtkWidget:tooltip-markup
    /// are set, the last one wins.
    ///
    /// Readable | Writeable
    ///
    ///
    /// #### `valign`
    ///  How to distribute vertical space if widget gets extra space, see #GtkAlign
    ///
    /// Readable | Writeable
    ///
    ///
    /// #### `vexpand`
    ///  Whether to expand vertically. See gtk_widget_set_vexpand().
    ///
    /// Readable | Writeable
    ///
    ///
    /// #### `vexpand-set`
    ///  Whether to use the #GtkWidget:vexpand property. See gtk_widget_get_vexpand_set().
    ///
    /// Readable | Writeable
    ///
    ///
    /// #### `visible`
    ///  Readable | Writeable
    ///
    ///
    /// #### `width-request`
    ///  Readable | Writeable
    ///
    ///
    /// #### `window`
    ///  The widget's window if it is realized, [`None`] otherwise.
    ///
    /// Readable
    /// </details>
    ///
    /// # Implements
    ///
    /// [`HdyHeaderBarExt`][trait@crate::prelude::HdyHeaderBarExt], [`trait@gtk::prelude::ContainerExt`], [`trait@gtk::prelude::WidgetExt`], [`trait@glib::ObjectExt`], [`trait@gtk::prelude::BuildableExt`]
    #[doc(alias = "HdyHeaderBar")]
    pub struct HeaderBar(Object<ffi::HdyHeaderBar, ffi::HdyHeaderBarClass>) @extends gtk::Container, gtk::Widget, @implements gtk::Buildable;

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

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

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

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

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

// rustdoc-stripper-ignore-next
/// A [builder-pattern] type to construct [`HeaderBar`] 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 HeaderBarBuilder {
    builder: glib::object::ObjectBuilder<'static, HeaderBar>,
}

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

    /// The policy for aligning the center widget.
    pub fn centering_policy(self, centering_policy: CenteringPolicy) -> Self {
        Self {
            builder: self.builder.property("centering-policy", centering_policy),
        }
    }

    /// Custom title widget to display.
    pub fn custom_title(self, custom_title: &impl IsA<gtk::Widget>) -> Self {
        Self {
            builder: self
                .builder
                .property("custom-title", custom_title.clone().upcast()),
        }
    }

    /// The decoration layout for buttons.
    ///
    /// If this property is not set, the
    /// [`gtk-decoration-layout`][struct@crate::Gtk::Settings#gtk-decoration-layout] setting is used.
    ///
    /// There can be valid reasons for overriding the setting, such as a header bar
    /// design that does not allow for buttons to take room on the right, or only
    /// offers room for a single close button. Split header bars are another example
    /// for overriding the setting.
    ///
    /// The format of the string is button names, separated by commas. A colon
    /// separates the buttons that should appear on the start from those on the
    /// end. Recognized button names are minimize, maximize, close, icon (the
    /// window icon) and menu (a menu button for the fallback app menu).
    ///
    /// For example, “menu:minimize,maximize,close” specifies a menu on the left, and
    /// minimize, maximize and close buttons on the right.
    pub fn decoration_layout(self, decoration_layout: impl Into<glib::GString>) -> Self {
        Self {
            builder: self
                .builder
                .property("decoration-layout", decoration_layout.into()),
        }
    }

    /// Whether [`decoration-layout`][struct@crate::HeaderBar#decoration-layout] is set.
    pub fn decoration_layout_set(self, decoration_layout_set: bool) -> Self {
        Self {
            builder: self
                .builder
                .property("decoration-layout-set", decoration_layout_set),
        }
    }

    /// Whether to reserve space for a subtitle, even if none is currently set.
    pub fn has_subtitle(self, has_subtitle: bool) -> Self {
        Self {
            builder: self.builder.property("has-subtitle", has_subtitle),
        }
    }

    /// Whether the size should smoothly change when changing between children.
    ///
    /// If `TRUE`, the header bar will interpolate its size between the one of the
    /// previous visible child and the one of the new visible child, according to
    /// the set transition duration and the orientation, e.g. if the orientation is
    /// horizontal, it will interpolate the its height.
    pub fn interpolate_size(self, interpolate_size: bool) -> Self {
        Self {
            builder: self.builder.property("interpolate-size", interpolate_size),
        }
    }

    /// Whether to show window decorations.
    ///
    /// Which buttons are actually shown and where is determined by the
    /// [`decoration-layout`][struct@crate::HeaderBar#decoration-layout] property, and by the state of the
    /// window (e.g. a close button will not be shown if the window can't be
    /// closed).
    pub fn show_close_button(self, show_close_button: bool) -> Self {
        Self {
            builder: self
                .builder
                .property("show-close-button", show_close_button),
        }
    }

    /// The amount of space between children.
    pub fn spacing(self, spacing: i32) -> Self {
        Self {
            builder: self.builder.property("spacing", spacing),
        }
    }

    /// The subtitle to display.
    pub fn subtitle(self, subtitle: impl Into<glib::GString>) -> Self {
        Self {
            builder: self.builder.property("subtitle", subtitle.into()),
        }
    }

    /// The title to display.
    pub fn title(self, title: impl Into<glib::GString>) -> Self {
        Self {
            builder: self.builder.property("title", title.into()),
        }
    }

    /// The transition duration, in milliseconds.
    pub fn transition_duration(self, transition_duration: u32) -> Self {
        Self {
            builder: self
                .builder
                .property("transition-duration", transition_duration),
        }
    }

    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<gtk::Widget>) -> Self {
        Self {
            builder: self.builder.property("child", child.clone().upcast()),
        }
    }

    pub fn resize_mode(self, resize_mode: gtk::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 #GtkWidget:hexpand and #GtkWidget: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 #GtkAlign
    pub fn halign(self, halign: gtk::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 #GtkWidget::query-tooltip on @widget.
    /// A value of [`true`] indicates that @widget can have a tooltip, in this case
    /// the widget will be queried using #GtkWidget::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 gtk_widget_set_hexpand().
    pub fn hexpand(self, hexpand: bool) -> Self {
        Self {
            builder: self.builder.property("hexpand", hexpand),
        }
    }

    /// Whether to use the #GtkWidget:hexpand property. See gtk_widget_get_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
    /// gtk_widget_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
    /// gtk_widget_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
    /// gtk_widget_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
    /// gtk_widget_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 gtk_widget_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<gtk::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),
        }
    }

    //pub fn style(self, style: &impl IsA</*Ignored*/gtk::Style>) -> Self {
    //    Self { builder: self.builder.property("style", style.clone().upcast()), }
    //}

    /// Sets the text of tooltip to be the given string, which is marked up
    /// with the [Pango text markup language][PangoMarkupFormat].
    /// Also see gtk_tooltip_set_markup().
    ///
    /// This is a convenience property which will take care of getting the
    /// tooltip shown if the given string is not [`None`]: #GtkWidget:has-tooltip
    /// will automatically be set to [`true`] and there will be taken care of
    /// #GtkWidget::query-tooltip in the default signal handler.
    ///
    /// Note that if both #GtkWidget:tooltip-text and #GtkWidget: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 gtk_tooltip_set_text().
    ///
    /// This is a convenience property which will take care of getting the
    /// tooltip shown if the given string is not [`None`]: #GtkWidget:has-tooltip
    /// will automatically be set to [`true`] and there will be taken care of
    /// #GtkWidget::query-tooltip in the default signal handler.
    ///
    /// Note that if both #GtkWidget:tooltip-text and #GtkWidget: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 #GtkAlign
    pub fn valign(self, valign: gtk::Align) -> Self {
        Self {
            builder: self.builder.property("valign", valign),
        }
    }

    /// Whether to expand vertically. See gtk_widget_set_vexpand().
    pub fn vexpand(self, vexpand: bool) -> Self {
        Self {
            builder: self.builder.property("vexpand", vexpand),
        }
    }

    /// Whether to use the #GtkWidget:vexpand property. See gtk_widget_get_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 [`HeaderBar`].
    #[must_use = "Building the object from the builder is usually expensive and is not expected to have side effects"]
    pub fn build(self) -> HeaderBar {
        self.builder.build()
    }
}

mod sealed {
    pub trait Sealed {}
    impl<T: super::IsA<super::HeaderBar>> Sealed for T {}
}

/// Trait containing all [`struct@HeaderBar`] methods.
///
/// # Implementors
///
/// [`HeaderBar`][struct@crate::HeaderBar]
pub trait HdyHeaderBarExt: IsA<HeaderBar> + sealed::Sealed + 'static {
    /// Gets the policy @self follows to horizontally align its center widget.
    ///
    /// # Returns
    ///
    /// the centering policy
    #[doc(alias = "hdy_header_bar_get_centering_policy")]
    #[doc(alias = "get_centering_policy")]
    fn centering_policy(&self) -> CenteringPolicy {
        unsafe {
            from_glib(ffi::hdy_header_bar_get_centering_policy(
                self.as_ref().to_glib_none().0,
            ))
        }
    }

    /// Retrieves the custom title widget of the header.
    ///
    /// # Returns
    ///
    /// the custom title widget of the header
    #[doc(alias = "hdy_header_bar_get_custom_title")]
    #[doc(alias = "get_custom_title")]
    fn custom_title(&self) -> Option<gtk::Widget> {
        unsafe {
            from_glib_none(ffi::hdy_header_bar_get_custom_title(
                self.as_ref().to_glib_none().0,
            ))
        }
    }

    /// Gets the decoration layout.
    ///
    /// # Returns
    ///
    /// the decoration layout
    #[doc(alias = "hdy_header_bar_get_decoration_layout")]
    #[doc(alias = "get_decoration_layout")]
    fn decoration_layout(&self) -> Option<glib::GString> {
        unsafe {
            from_glib_none(ffi::hdy_header_bar_get_decoration_layout(
                self.as_ref().to_glib_none().0,
            ))
        }
    }

    /// Gets whether space is reserved for a subtitle, regardless if one is currently
    /// set or not.
    ///
    /// # Returns
    ///
    /// `TRUE` if the header bar reserves space for a subtitle
    #[doc(alias = "hdy_header_bar_get_has_subtitle")]
    #[doc(alias = "get_has_subtitle")]
    fn has_subtitle(&self) -> bool {
        unsafe {
            from_glib(ffi::hdy_header_bar_get_has_subtitle(
                self.as_ref().to_glib_none().0,
            ))
        }
    }

    /// Gets whether @self should interpolate its size on visible child change.
    ///
    /// # Returns
    ///
    /// whether @self interpolates its size on visible child change
    #[doc(alias = "hdy_header_bar_get_interpolate_size")]
    #[doc(alias = "get_interpolate_size")]
    fn is_interpolate_size(&self) -> bool {
        unsafe {
            from_glib(ffi::hdy_header_bar_get_interpolate_size(
                self.as_ref().to_glib_none().0,
            ))
        }
    }

    /// Gets whether this header bar shows the standard window decorations.
    ///
    /// # Returns
    ///
    /// whether decorations are shown
    #[doc(alias = "hdy_header_bar_get_show_close_button")]
    #[doc(alias = "get_show_close_button")]
    fn shows_close_button(&self) -> bool {
        unsafe {
            from_glib(ffi::hdy_header_bar_get_show_close_button(
                self.as_ref().to_glib_none().0,
            ))
        }
    }

    /// Gets the subtitle of the header.
    ///
    /// # Returns
    ///
    /// the subtitle of the header
    #[doc(alias = "hdy_header_bar_get_subtitle")]
    #[doc(alias = "get_subtitle")]
    fn subtitle(&self) -> Option<glib::GString> {
        unsafe {
            from_glib_none(ffi::hdy_header_bar_get_subtitle(
                self.as_ref().to_glib_none().0,
            ))
        }
    }

    /// Retrieves the title of the header.
    ///
    /// # Returns
    ///
    /// the title of the header.
    #[doc(alias = "hdy_header_bar_get_title")]
    #[doc(alias = "get_title")]
    fn title(&self) -> Option<glib::GString> {
        unsafe {
            from_glib_none(ffi::hdy_header_bar_get_title(
                self.as_ref().to_glib_none().0,
            ))
        }
    }

    /// Gets the amount of time that transitions between pages will take.
    ///
    /// # Returns
    ///
    /// the transition duration, in milliseconds
    #[doc(alias = "hdy_header_bar_get_transition_duration")]
    #[doc(alias = "get_transition_duration")]
    fn transition_duration(&self) -> u32 {
        unsafe { ffi::hdy_header_bar_get_transition_duration(self.as_ref().to_glib_none().0) }
    }

    /// Gets whether the @self is currently in a transition from one page to another.
    ///
    /// # Returns
    ///
    /// whether the transition is currently running
    #[doc(alias = "hdy_header_bar_get_transition_running")]
    #[doc(alias = "get_transition_running")]
    fn is_transition_running(&self) -> bool {
        unsafe {
            from_glib(ffi::hdy_header_bar_get_transition_running(
                self.as_ref().to_glib_none().0,
            ))
        }
    }

    /// Adds @child to @self, packed with reference to the end of the @self.
    /// ## `child`
    /// the widget to be added to @self
    #[doc(alias = "hdy_header_bar_pack_end")]
    fn pack_end(&self, child: &impl IsA<gtk::Widget>) {
        unsafe {
            ffi::hdy_header_bar_pack_end(
                self.as_ref().to_glib_none().0,
                child.as_ref().to_glib_none().0,
            );
        }
    }

    /// Adds @child to @self, packed with reference to the start of the @self.
    /// ## `child`
    /// the widget to be added to @self
    #[doc(alias = "hdy_header_bar_pack_start")]
    fn pack_start(&self, child: &impl IsA<gtk::Widget>) {
        unsafe {
            ffi::hdy_header_bar_pack_start(
                self.as_ref().to_glib_none().0,
                child.as_ref().to_glib_none().0,
            );
        }
    }

    /// Sets the policy @self must follow to horizontally align its center widget.
    /// ## `centering_policy`
    /// the centering policy
    #[doc(alias = "hdy_header_bar_set_centering_policy")]
    fn set_centering_policy(&self, centering_policy: CenteringPolicy) {
        unsafe {
            ffi::hdy_header_bar_set_centering_policy(
                self.as_ref().to_glib_none().0,
                centering_policy.into_glib(),
            );
        }
    }

    /// Sets a custom title for the header bar.
    ///
    /// The title should help a user identify the current view. This supersedes any
    /// title set by [`set_title()`][Self::set_title()] or [`set_subtitle()`][Self::set_subtitle()].
    /// To achieve the same style as the builtin title and subtitle, use the `.title`
    /// and `.subtitle` style classes.
    ///
    /// You should set the custom title to `NULL`, for the header title label to be
    /// visible again.
    /// ## `title_widget`
    /// a custom widget to use for a title
    #[doc(alias = "hdy_header_bar_set_custom_title")]
    fn set_custom_title(&self, title_widget: Option<&impl IsA<gtk::Widget>>) {
        unsafe {
            ffi::hdy_header_bar_set_custom_title(
                self.as_ref().to_glib_none().0,
                title_widget.map(|p| p.as_ref()).to_glib_none().0,
            );
        }
    }

    /// Sets the decoration layout for this header bar.
    /// ## `layout`
    /// a decoration layout
    #[doc(alias = "hdy_header_bar_set_decoration_layout")]
    fn set_decoration_layout(&self, layout: Option<&str>) {
        unsafe {
            ffi::hdy_header_bar_set_decoration_layout(
                self.as_ref().to_glib_none().0,
                layout.to_glib_none().0,
            );
        }
    }

    /// Sets whether space is reserved for a subtitle, even if none is currently set.
    /// ## `setting`
    /// `TRUE` to reserve space for a subtitle
    #[doc(alias = "hdy_header_bar_set_has_subtitle")]
    fn set_has_subtitle(&self, setting: bool) {
        unsafe {
            ffi::hdy_header_bar_set_has_subtitle(
                self.as_ref().to_glib_none().0,
                setting.into_glib(),
            );
        }
    }

    /// Sets whether @self should interpolate its size on visible child change.
    /// ## `interpolate_size`
    /// `TRUE` to interpolate the size
    #[doc(alias = "hdy_header_bar_set_interpolate_size")]
    fn set_interpolate_size(&self, interpolate_size: bool) {
        unsafe {
            ffi::hdy_header_bar_set_interpolate_size(
                self.as_ref().to_glib_none().0,
                interpolate_size.into_glib(),
            );
        }
    }

    /// Sets whether this header bar shows the standard window decorations.
    /// ## `setting`
    /// `TRUE` to show standard window decorations
    #[doc(alias = "hdy_header_bar_set_show_close_button")]
    fn set_show_close_button(&self, setting: bool) {
        unsafe {
            ffi::hdy_header_bar_set_show_close_button(
                self.as_ref().to_glib_none().0,
                setting.into_glib(),
            );
        }
    }

    /// Sets the subtitle of the header bar.
    ///
    /// The title should give a user an additional detail to help them identify the
    /// current view.
    ///
    /// Note that [`HeaderBar`][crate::HeaderBar] by default reserves room for the subtitle, even
    /// if none is currently set. If this is not desired, set the
    /// [`has-subtitle`][struct@crate::HeaderBar#has-subtitle] property to `FALSE`.
    /// ## `subtitle`
    /// a subtitle
    #[doc(alias = "hdy_header_bar_set_subtitle")]
    fn set_subtitle(&self, subtitle: Option<&str>) {
        unsafe {
            ffi::hdy_header_bar_set_subtitle(
                self.as_ref().to_glib_none().0,
                subtitle.to_glib_none().0,
            );
        }
    }

    /// Sets the title of the [`HeaderBar`][crate::HeaderBar].
    ///
    /// The title should help a user identify the current view. A good title should
    /// not include the application name.
    /// ## `title`
    /// a title
    #[doc(alias = "hdy_header_bar_set_title")]
    fn set_title(&self, title: Option<&str>) {
        unsafe {
            ffi::hdy_header_bar_set_title(self.as_ref().to_glib_none().0, title.to_glib_none().0);
        }
    }

    /// Sets the duration that transitions between pages will take.
    /// ## `duration`
    /// the new duration, in milliseconds
    #[doc(alias = "hdy_header_bar_set_transition_duration")]
    fn set_transition_duration(&self, duration: u32) {
        unsafe {
            ffi::hdy_header_bar_set_transition_duration(self.as_ref().to_glib_none().0, duration);
        }
    }

    /// Whether [`decoration-layout`][struct@crate::HeaderBar#decoration-layout] is set.
    #[doc(alias = "decoration-layout-set")]
    fn is_decoration_layout_set(&self) -> bool {
        ObjectExt::property(self.as_ref(), "decoration-layout-set")
    }

    /// Whether [`decoration-layout`][struct@crate::HeaderBar#decoration-layout] is set.
    #[doc(alias = "decoration-layout-set")]
    fn set_decoration_layout_set(&self, decoration_layout_set: bool) {
        ObjectExt::set_property(
            self.as_ref(),
            "decoration-layout-set",
            decoration_layout_set,
        )
    }

    /// The amount of space between children.
    fn spacing(&self) -> i32 {
        ObjectExt::property(self.as_ref(), "spacing")
    }

    /// The amount of space between children.
    fn set_spacing(&self, spacing: i32) {
        ObjectExt::set_property(self.as_ref(), "spacing", spacing)
    }

    #[doc(alias = "centering-policy")]
    fn connect_centering_policy_notify<F: Fn(&Self) + 'static>(&self, f: F) -> SignalHandlerId {
        unsafe extern "C" fn notify_centering_policy_trampoline<
            P: IsA<HeaderBar>,
            F: Fn(&P) + 'static,
        >(
            this: *mut ffi::HdyHeaderBar,
            _param_spec: glib::ffi::gpointer,
            f: glib::ffi::gpointer,
        ) {
            let f: &F = &*(f as *const F);
            f(HeaderBar::from_glib_borrow(this).unsafe_cast_ref())
        }
        unsafe {
            let f: Box_<F> = Box_::new(f);
            connect_raw(
                self.as_ptr() as *mut _,
                b"notify::centering-policy\0".as_ptr() as *const _,
                Some(transmute::<_, unsafe extern "C" fn()>(
                    notify_centering_policy_trampoline::<Self, F> as *const (),
                )),
                Box_::into_raw(f),
            )
        }
    }

    #[doc(alias = "custom-title")]
    fn connect_custom_title_notify<F: Fn(&Self) + 'static>(&self, f: F) -> SignalHandlerId {
        unsafe extern "C" fn notify_custom_title_trampoline<
            P: IsA<HeaderBar>,
            F: Fn(&P) + 'static,
        >(
            this: *mut ffi::HdyHeaderBar,
            _param_spec: glib::ffi::gpointer,
            f: glib::ffi::gpointer,
        ) {
            let f: &F = &*(f as *const F);
            f(HeaderBar::from_glib_borrow(this).unsafe_cast_ref())
        }
        unsafe {
            let f: Box_<F> = Box_::new(f);
            connect_raw(
                self.as_ptr() as *mut _,
                b"notify::custom-title\0".as_ptr() as *const _,
                Some(transmute::<_, unsafe extern "C" fn()>(
                    notify_custom_title_trampoline::<Self, F> as *const (),
                )),
                Box_::into_raw(f),
            )
        }
    }

    #[doc(alias = "decoration-layout")]
    fn connect_decoration_layout_notify<F: Fn(&Self) + 'static>(&self, f: F) -> SignalHandlerId {
        unsafe extern "C" fn notify_decoration_layout_trampoline<
            P: IsA<HeaderBar>,
            F: Fn(&P) + 'static,
        >(
            this: *mut ffi::HdyHeaderBar,
            _param_spec: glib::ffi::gpointer,
            f: glib::ffi::gpointer,
        ) {
            let f: &F = &*(f as *const F);
            f(HeaderBar::from_glib_borrow(this).unsafe_cast_ref())
        }
        unsafe {
            let f: Box_<F> = Box_::new(f);
            connect_raw(
                self.as_ptr() as *mut _,
                b"notify::decoration-layout\0".as_ptr() as *const _,
                Some(transmute::<_, unsafe extern "C" fn()>(
                    notify_decoration_layout_trampoline::<Self, F> as *const (),
                )),
                Box_::into_raw(f),
            )
        }
    }

    #[doc(alias = "decoration-layout-set")]
    fn connect_decoration_layout_set_notify<F: Fn(&Self) + 'static>(
        &self,
        f: F,
    ) -> SignalHandlerId {
        unsafe extern "C" fn notify_decoration_layout_set_trampoline<
            P: IsA<HeaderBar>,
            F: Fn(&P) + 'static,
        >(
            this: *mut ffi::HdyHeaderBar,
            _param_spec: glib::ffi::gpointer,
            f: glib::ffi::gpointer,
        ) {
            let f: &F = &*(f as *const F);
            f(HeaderBar::from_glib_borrow(this).unsafe_cast_ref())
        }
        unsafe {
            let f: Box_<F> = Box_::new(f);
            connect_raw(
                self.as_ptr() as *mut _,
                b"notify::decoration-layout-set\0".as_ptr() as *const _,
                Some(transmute::<_, unsafe extern "C" fn()>(
                    notify_decoration_layout_set_trampoline::<Self, F> as *const (),
                )),
                Box_::into_raw(f),
            )
        }
    }

    #[doc(alias = "has-subtitle")]
    fn connect_has_subtitle_notify<F: Fn(&Self) + 'static>(&self, f: F) -> SignalHandlerId {
        unsafe extern "C" fn notify_has_subtitle_trampoline<
            P: IsA<HeaderBar>,
            F: Fn(&P) + 'static,
        >(
            this: *mut ffi::HdyHeaderBar,
            _param_spec: glib::ffi::gpointer,
            f: glib::ffi::gpointer,
        ) {
            let f: &F = &*(f as *const F);
            f(HeaderBar::from_glib_borrow(this).unsafe_cast_ref())
        }
        unsafe {
            let f: Box_<F> = Box_::new(f);
            connect_raw(
                self.as_ptr() as *mut _,
                b"notify::has-subtitle\0".as_ptr() as *const _,
                Some(transmute::<_, unsafe extern "C" fn()>(
                    notify_has_subtitle_trampoline::<Self, F> as *const (),
                )),
                Box_::into_raw(f),
            )
        }
    }

    #[doc(alias = "interpolate-size")]
    fn connect_interpolate_size_notify<F: Fn(&Self) + 'static>(&self, f: F) -> SignalHandlerId {
        unsafe extern "C" fn notify_interpolate_size_trampoline<
            P: IsA<HeaderBar>,
            F: Fn(&P) + 'static,
        >(
            this: *mut ffi::HdyHeaderBar,
            _param_spec: glib::ffi::gpointer,
            f: glib::ffi::gpointer,
        ) {
            let f: &F = &*(f as *const F);
            f(HeaderBar::from_glib_borrow(this).unsafe_cast_ref())
        }
        unsafe {
            let f: Box_<F> = Box_::new(f);
            connect_raw(
                self.as_ptr() as *mut _,
                b"notify::interpolate-size\0".as_ptr() as *const _,
                Some(transmute::<_, unsafe extern "C" fn()>(
                    notify_interpolate_size_trampoline::<Self, F> as *const (),
                )),
                Box_::into_raw(f),
            )
        }
    }

    #[doc(alias = "show-close-button")]
    fn connect_show_close_button_notify<F: Fn(&Self) + 'static>(&self, f: F) -> SignalHandlerId {
        unsafe extern "C" fn notify_show_close_button_trampoline<
            P: IsA<HeaderBar>,
            F: Fn(&P) + 'static,
        >(
            this: *mut ffi::HdyHeaderBar,
            _param_spec: glib::ffi::gpointer,
            f: glib::ffi::gpointer,
        ) {
            let f: &F = &*(f as *const F);
            f(HeaderBar::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-close-button\0".as_ptr() as *const _,
                Some(transmute::<_, unsafe extern "C" fn()>(
                    notify_show_close_button_trampoline::<Self, F> as *const (),
                )),
                Box_::into_raw(f),
            )
        }
    }

    #[doc(alias = "spacing")]
    fn connect_spacing_notify<F: Fn(&Self) + 'static>(&self, f: F) -> SignalHandlerId {
        unsafe extern "C" fn notify_spacing_trampoline<P: IsA<HeaderBar>, F: Fn(&P) + 'static>(
            this: *mut ffi::HdyHeaderBar,
            _param_spec: glib::ffi::gpointer,
            f: glib::ffi::gpointer,
        ) {
            let f: &F = &*(f as *const F);
            f(HeaderBar::from_glib_borrow(this).unsafe_cast_ref())
        }
        unsafe {
            let f: Box_<F> = Box_::new(f);
            connect_raw(
                self.as_ptr() as *mut _,
                b"notify::spacing\0".as_ptr() as *const _,
                Some(transmute::<_, unsafe extern "C" fn()>(
                    notify_spacing_trampoline::<Self, F> as *const (),
                )),
                Box_::into_raw(f),
            )
        }
    }

    #[doc(alias = "subtitle")]
    fn connect_subtitle_notify<F: Fn(&Self) + 'static>(&self, f: F) -> SignalHandlerId {
        unsafe extern "C" fn notify_subtitle_trampoline<P: IsA<HeaderBar>, F: Fn(&P) + 'static>(
            this: *mut ffi::HdyHeaderBar,
            _param_spec: glib::ffi::gpointer,
            f: glib::ffi::gpointer,
        ) {
            let f: &F = &*(f as *const F);
            f(HeaderBar::from_glib_borrow(this).unsafe_cast_ref())
        }
        unsafe {
            let f: Box_<F> = Box_::new(f);
            connect_raw(
                self.as_ptr() as *mut _,
                b"notify::subtitle\0".as_ptr() as *const _,
                Some(transmute::<_, unsafe extern "C" fn()>(
                    notify_subtitle_trampoline::<Self, F> as *const (),
                )),
                Box_::into_raw(f),
            )
        }
    }

    #[doc(alias = "title")]
    fn connect_title_notify<F: Fn(&Self) + 'static>(&self, f: F) -> SignalHandlerId {
        unsafe extern "C" fn notify_title_trampoline<P: IsA<HeaderBar>, F: Fn(&P) + 'static>(
            this: *mut ffi::HdyHeaderBar,
            _param_spec: glib::ffi::gpointer,
            f: glib::ffi::gpointer,
        ) {
            let f: &F = &*(f as *const F);
            f(HeaderBar::from_glib_borrow(this).unsafe_cast_ref())
        }
        unsafe {
            let f: Box_<F> = Box_::new(f);
            connect_raw(
                self.as_ptr() as *mut _,
                b"notify::title\0".as_ptr() as *const _,
                Some(transmute::<_, unsafe extern "C" fn()>(
                    notify_title_trampoline::<Self, F> as *const (),
                )),
                Box_::into_raw(f),
            )
        }
    }

    #[doc(alias = "transition-duration")]
    fn connect_transition_duration_notify<F: Fn(&Self) + 'static>(&self, f: F) -> SignalHandlerId {
        unsafe extern "C" fn notify_transition_duration_trampoline<
            P: IsA<HeaderBar>,
            F: Fn(&P) + 'static,
        >(
            this: *mut ffi::HdyHeaderBar,
            _param_spec: glib::ffi::gpointer,
            f: glib::ffi::gpointer,
        ) {
            let f: &F = &*(f as *const F);
            f(HeaderBar::from_glib_borrow(this).unsafe_cast_ref())
        }
        unsafe {
            let f: Box_<F> = Box_::new(f);
            connect_raw(
                self.as_ptr() as *mut _,
                b"notify::transition-duration\0".as_ptr() as *const _,
                Some(transmute::<_, unsafe extern "C" fn()>(
                    notify_transition_duration_trampoline::<Self, F> as *const (),
                )),
                Box_::into_raw(f),
            )
        }
    }

    #[doc(alias = "transition-running")]
    fn connect_transition_running_notify<F: Fn(&Self) + 'static>(&self, f: F) -> SignalHandlerId {
        unsafe extern "C" fn notify_transition_running_trampoline<
            P: IsA<HeaderBar>,
            F: Fn(&P) + 'static,
        >(
            this: *mut ffi::HdyHeaderBar,
            _param_spec: glib::ffi::gpointer,
            f: glib::ffi::gpointer,
        ) {
            let f: &F = &*(f as *const F);
            f(HeaderBar::from_glib_borrow(this).unsafe_cast_ref())
        }
        unsafe {
            let f: Box_<F> = Box_::new(f);
            connect_raw(
                self.as_ptr() as *mut _,
                b"notify::transition-running\0".as_ptr() as *const _,
                Some(transmute::<_, unsafe extern "C" fn()>(
                    notify_transition_running_trampoline::<Self, F> as *const (),
                )),
                Box_::into_raw(f),
            )
        }
    }
}

impl<O: IsA<HeaderBar>> HdyHeaderBarExt for O {}

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