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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::Buildable;
use crate::ConstraintTarget;
use crate::LayoutManager;
use crate::Native;
use crate::Overflow;
use crate::PositionType;
use crate::ShortcutManager;
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 glib::StaticType;
use glib::ToValue;
use std::boxed::Box as Box_;
use std::fmt;
use std::mem;
use std::mem::transmute;

glib::wrapper! {
    /// [`Popover`][crate::Popover] is a bubble-like context popup.
    ///
    /// ![An example GtkPopover](popover.png)
    ///
    /// It is primarily meant to provide context-dependent information
    /// or options. Popovers are attached to a parent widget. By default,
    /// they point to the whole widget area, although this behavior can be
    /// changed with [``PopoverExt::set_pointing_to()``][crate::prelude::`PopoverExt::set_pointing_to()`].
    ///
    /// The position of a popover relative to the widget it is attached to
    /// can also be changed with [``PopoverExt::set_position()``][crate::prelude::`PopoverExt::set_position()`]
    ///
    /// By default, [`Popover`][crate::Popover] performs a grab, in order to ensure input
    /// events get redirected to it while it is shown, and also so the popover
    /// is dismissed in the expected situations (clicks outside the popover,
    /// or the Escape key being pressed). If no such modal behavior is desired
    /// on a popover, [``PopoverExt::set_autohide()``][crate::prelude::`PopoverExt::set_autohide()`] may be called on it to
    /// tweak its behavior.
    ///
    /// ## GtkPopover as menu replacement
    ///
    /// [`Popover`][crate::Popover] is often used to replace menus. The best was to do this
    /// is to use the [`PopoverMenu`][crate::PopoverMenu] subclass which supports being
    /// populated from a `GMenuModel` with [``PopoverMenu::from_model()``][crate::`PopoverMenu::from_model()`].
    ///
    /// ```xml
    /// <section>
    ///   <attribute name="display-hint">horizontal-buttons</attribute>
    ///   <item>
    ///     <attribute name="label">Cut</attribute>
    ///     <attribute name="action">app.cut</attribute>
    ///     <attribute name="verb-icon">edit-cut-symbolic</attribute>
    ///   </item>
    ///   <item>
    ///     <attribute name="label">Copy</attribute>
    ///     <attribute name="action">app.copy</attribute>
    ///     <attribute name="verb-icon">edit-copy-symbolic</attribute>
    ///   </item>
    ///   <item>
    ///     <attribute name="label">Paste</attribute>
    ///     <attribute name="action">app.paste</attribute>
    ///     <attribute name="verb-icon">edit-paste-symbolic</attribute>
    ///   </item>
    /// </section>
    /// ```
    ///
    /// # CSS nodes
    ///
    /// ```text
    /// popover[.menu]
    /// ├── arrow
    /// ╰── contents.background
    ///     ╰── <child>
    /// ```
    ///
    /// The contents child node always gets the .background style class
    /// and the popover itself gets the .menu style class if the popover
    /// is menu-like (i.e. [`PopoverMenu`][crate::PopoverMenu]).
    ///
    /// Particular uses of [`Popover`][crate::Popover], such as touch selection popups or
    /// magnifiers in [`Entry`][crate::Entry] or [`TextView`][crate::TextView] get style classes like
    /// .touch-selection or .magnifier to differentiate from plain popovers.
    ///
    /// When styling a popover directly, the popover node should usually
    /// not have any background. The visible part of the popover can have
    /// a shadow. To specify it in CSS, set the box-shadow of the contents node.
    ///
    /// Note that, in order to accomplish appropriate arrow visuals, [`Popover`][crate::Popover]
    /// uses custom drawing for the arrow node. This makes it possible for the
    /// arrow to change its shape dynamically, but it also limits the possibilities
    /// of styling it using CSS. In particular, the arrow gets drawn over the
    /// content node's border and shadow, so they look like one shape, which
    /// means that the border width of the content node and the arrow node should
    /// be the same. The arrow also does not support any border shape other than
    /// solid, no border-radius, only one border width (border-bottom-width is
    /// used) and no box-shadow.
    ///
    /// # Implements
    ///
    /// [`PopoverExt`][trait@crate::prelude::PopoverExt], [`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], [`ShortcutManagerExt`][trait@crate::prelude::ShortcutManagerExt], [`WidgetExtManual`][trait@crate::prelude::WidgetExtManual], [`AccessibleExtManual`][trait@crate::prelude::AccessibleExtManual]
    #[doc(alias = "GtkPopover")]
    pub struct Popover(Object<ffi::GtkPopover, ffi::GtkPopoverClass>) @extends Widget, @implements Accessible, Buildable, ConstraintTarget, Native, ShortcutManager;

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

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

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

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

#[derive(Clone, Default)]
// rustdoc-stripper-ignore-next
/// A [builder-pattern] type to construct [`Popover`] objects.
///
/// [builder-pattern]: https://doc.rust-lang.org/1.0.0/style/ownership/builders.html
pub struct PopoverBuilder {
    autohide: Option<bool>,
    cascade_popdown: Option<bool>,
    child: Option<Widget>,
    default_widget: Option<Widget>,
    has_arrow: Option<bool>,
    mnemonics_visible: Option<bool>,
    pointing_to: Option<gdk::Rectangle>,
    position: Option<PositionType>,
    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 PopoverBuilder {
    // rustdoc-stripper-ignore-next
    /// Create a new [`PopoverBuilder`].
    pub fn new() -> Self {
        Self::default()
    }

    // rustdoc-stripper-ignore-next
    /// Build the [`Popover`].
    pub fn build(self) -> Popover {
        let mut properties: Vec<(&str, &dyn ToValue)> = vec![];
        if let Some(ref autohide) = self.autohide {
            properties.push(("autohide", autohide));
        }
        if let Some(ref cascade_popdown) = self.cascade_popdown {
            properties.push(("cascade-popdown", cascade_popdown));
        }
        if let Some(ref child) = self.child {
            properties.push(("child", child));
        }
        if let Some(ref default_widget) = self.default_widget {
            properties.push(("default-widget", default_widget));
        }
        if let Some(ref has_arrow) = self.has_arrow {
            properties.push(("has-arrow", has_arrow));
        }
        if let Some(ref mnemonics_visible) = self.mnemonics_visible {
            properties.push(("mnemonics-visible", mnemonics_visible));
        }
        if let Some(ref pointing_to) = self.pointing_to {
            properties.push(("pointing-to", pointing_to));
        }
        if let Some(ref position) = self.position {
            properties.push(("position", position));
        }
        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::<Popover>(&properties).expect("Failed to create an instance of Popover")
    }

    /// Whether to dismiss the popover on outside clicks.
    pub fn autohide(mut self, autohide: bool) -> Self {
        self.autohide = Some(autohide);
        self
    }

    /// Whether the popover pops down after a child popover.
    ///
    /// This is used to implement the expected behavior of submenus.
    pub fn cascade_popdown(mut self, cascade_popdown: bool) -> Self {
        self.cascade_popdown = Some(cascade_popdown);
        self
    }

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

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

    /// Whether to draw an arrow.
    pub fn has_arrow(mut self, has_arrow: bool) -> Self {
        self.has_arrow = Some(has_arrow);
        self
    }

    /// Whether mnemonics are currently visible in this popover.
    pub fn mnemonics_visible(mut self, mnemonics_visible: bool) -> Self {
        self.mnemonics_visible = Some(mnemonics_visible);
        self
    }

    /// Rectangle in the parent widget that the popover points to.
    pub fn pointing_to(mut self, pointing_to: &gdk::Rectangle) -> Self {
        self.pointing_to = Some(pointing_to.clone());
        self
    }

    /// How to place the popover, relative to its parent.
    pub fn position(mut self, position: PositionType) -> Self {
        self.position = Some(position);
        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_POPOVER: Option<&Popover> = None;

/// Trait containing all [`struct@Popover`] methods.
///
/// # Implementors
///
/// [`EmojiChooser`][struct@crate::EmojiChooser], [`PopoverMenu`][struct@crate::PopoverMenu], [`Popover`][struct@crate::Popover]
pub trait PopoverExt: 'static {
    /// Returns whether the popover is modal.
    ///
    /// See [``set_autohide()``][`Self::set_autohide()`] for the
    /// implications of this.
    ///
    /// # Returns
    ///
    /// [`true`] if `self` is modal
    #[doc(alias = "gtk_popover_get_autohide")]
    #[doc(alias = "get_autohide")]
    fn is_autohide(&self) -> bool;

    /// Returns whether the popover will close after a modal child is closed.
    ///
    /// # Returns
    ///
    /// [`true`] if `self` will close after a modal child.
    #[doc(alias = "gtk_popover_get_cascade_popdown")]
    #[doc(alias = "get_cascade_popdown")]
    fn is_cascade_popdown(&self) -> bool;

    /// Gets the child widget of `self`.
    ///
    /// # Returns
    ///
    /// the child widget of `self`
    #[doc(alias = "gtk_popover_get_child")]
    #[doc(alias = "get_child")]
    fn child(&self) -> Option<Widget>;

    /// Gets whether this popover is showing an arrow
    /// pointing at the widget that it is relative to.
    ///
    /// # Returns
    ///
    /// whether the popover has an arrow
    #[doc(alias = "gtk_popover_get_has_arrow")]
    #[doc(alias = "get_has_arrow")]
    fn has_arrow(&self) -> bool;

    /// Gets whether mnemonics are visible.
    ///
    /// # Returns
    ///
    /// [`true`] if mnemonics are supposed to be visible
    ///  in this popover
    #[doc(alias = "gtk_popover_get_mnemonics_visible")]
    #[doc(alias = "get_mnemonics_visible")]
    fn is_mnemonics_visible(&self) -> bool;

    /// Gets the offset previous set with [`set_offset()`][Self::set_offset()].
    ///
    /// # Returns
    ///
    ///
    /// ## `x_offset`
    /// a location for the x_offset
    ///
    /// ## `y_offset`
    /// a location for the y_offset
    #[doc(alias = "gtk_popover_get_offset")]
    #[doc(alias = "get_offset")]
    fn offset(&self) -> (i32, i32);

    /// Gets the rectangle that the popover points to.
    ///
    /// If a rectangle to point to has been set, this function will
    /// return [`true`] and fill in `rect` with such rectangle, otherwise
    /// it will return [`false`] and fill in `rect` with the parent
    /// widget coordinates.
    ///
    /// # Returns
    ///
    /// [`true`] if a rectangle to point to was set.
    ///
    /// ## `rect`
    /// location to store the rectangle
    #[doc(alias = "gtk_popover_get_pointing_to")]
    #[doc(alias = "get_pointing_to")]
    fn pointing_to(&self) -> Option<gdk::Rectangle>;

    /// Returns the preferred position of `self`.
    ///
    /// # Returns
    ///
    /// The preferred position.
    #[doc(alias = "gtk_popover_get_position")]
    #[doc(alias = "get_position")]
    fn position(&self) -> PositionType;

    /// Pops `self` down.
    ///
    /// This may have the side-effect of closing a parent popover
    /// as well. See `property::Popover::cascade-popdown`.
    #[doc(alias = "gtk_popover_popdown")]
    fn popdown(&self);

    /// Pops `self` up.
    #[doc(alias = "gtk_popover_popup")]
    fn popup(&self);

    /// Presents the popover to the user.
    #[doc(alias = "gtk_popover_present")]
    fn present(&self);

    /// Sets whether `self` is modal.
    ///
    /// A modal popover will grab the keyboard focus on it when being
    /// displayed. Focus will wrap around within the popover. Clicking
    /// outside the popover area or pressing Esc will dismiss the popover.
    ///
    /// Called this function on an already showing popup with a new
    /// autohide value different from the current one, will cause the
    /// popup to be hidden.
    /// ## `autohide`
    /// [`true`] to dismiss the popover on outside clicks
    #[doc(alias = "gtk_popover_set_autohide")]
    fn set_autohide(&self, autohide: bool);

    /// If `cascade_popdown` is [`true`], the popover will be
    /// closed when a child modal popover is closed.
    ///
    /// If [`false`], `self` will stay visible.
    /// ## `cascade_popdown`
    /// [`true`] if the popover should follow a child closing
    #[doc(alias = "gtk_popover_set_cascade_popdown")]
    fn set_cascade_popdown(&self, cascade_popdown: bool);

    /// Sets the child widget of `self`.
    /// ## `child`
    /// the child widget
    #[doc(alias = "gtk_popover_set_child")]
    fn set_child(&self, child: Option<&impl IsA<Widget>>);

    /// Sets the default widget of a [`Popover`][crate::Popover].
    ///
    /// The default widget is the widget that’s activated when the user
    /// presses Enter in a dialog (for example). This function sets or
    /// unsets the default widget for a [`Popover`][crate::Popover].
    /// ## `widget`
    /// a child widget of `self` to set as
    ///  the default, or [`None`] to unset the default widget for the popover
    #[doc(alias = "gtk_popover_set_default_widget")]
    fn set_default_widget(&self, widget: Option<&impl IsA<Widget>>);

    /// Sets whether this popover should draw an arrow
    /// pointing at the widget it is relative to.
    /// ## `has_arrow`
    /// [`true`] to draw an arrow
    #[doc(alias = "gtk_popover_set_has_arrow")]
    fn set_has_arrow(&self, has_arrow: bool);

    /// Sets whether mnemonics should be visible.
    /// ## `mnemonics_visible`
    /// the new value
    #[doc(alias = "gtk_popover_set_mnemonics_visible")]
    fn set_mnemonics_visible(&self, mnemonics_visible: bool);

    /// Sets the offset to use when calculating the position
    /// of the popover.
    ///
    /// These values are used when preparing the `Gdk::PopupLayout`
    /// for positioning the popover.
    /// ## `x_offset`
    /// the x offset to adjust the position by
    /// ## `y_offset`
    /// the y offset to adjust the position by
    #[doc(alias = "gtk_popover_set_offset")]
    fn set_offset(&self, x_offset: i32, y_offset: i32);

    /// Sets the rectangle that `self` points to.
    ///
    /// This is in the coordinate space of the `self` parent.
    /// ## `rect`
    /// rectangle to point to
    #[doc(alias = "gtk_popover_set_pointing_to")]
    fn set_pointing_to(&self, rect: &gdk::Rectangle);

    /// Sets the preferred position for `self` to appear.
    ///
    /// If the `self` is currently visible, it will be immediately
    /// updated.
    ///
    /// This preference will be respected where possible, although
    /// on lack of space (eg. if close to the window edges), the
    /// [`Popover`][crate::Popover] may choose to appear on the opposite side.
    /// ## `position`
    /// preferred popover position
    #[doc(alias = "gtk_popover_set_position")]
    fn set_position(&self, position: PositionType);

    /// The default widget inside the popover.
    #[doc(alias = "default-widget")]
    fn default_widget(&self) -> Option<Widget>;

    /// Emitted whend the user activates the default widget.
    ///
    /// This is a [keybinding signal](class.SignalAction.html).
    #[doc(alias = "activate-default")]
    fn connect_activate_default<F: Fn(&Self) + 'static>(&self, f: F) -> SignalHandlerId;

    fn emit_activate_default(&self);

    /// Emitted when the popover is closed.
    #[doc(alias = "closed")]
    fn connect_closed<F: Fn(&Self) + 'static>(&self, f: F) -> SignalHandlerId;

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

    #[doc(alias = "cascade-popdown")]
    fn connect_cascade_popdown_notify<F: Fn(&Self) + 'static>(&self, f: F) -> SignalHandlerId;

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

    #[doc(alias = "default-widget")]
    fn connect_default_widget_notify<F: Fn(&Self) + 'static>(&self, f: F) -> SignalHandlerId;

    #[doc(alias = "has-arrow")]
    fn connect_has_arrow_notify<F: Fn(&Self) + 'static>(&self, f: F) -> SignalHandlerId;

    #[doc(alias = "mnemonics-visible")]
    fn connect_mnemonics_visible_notify<F: Fn(&Self) + 'static>(&self, f: F) -> SignalHandlerId;

    #[doc(alias = "pointing-to")]
    fn connect_pointing_to_notify<F: Fn(&Self) + 'static>(&self, f: F) -> SignalHandlerId;

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

impl<O: IsA<Popover>> PopoverExt for O {
    fn is_autohide(&self) -> bool {
        unsafe {
            from_glib(ffi::gtk_popover_get_autohide(
                self.as_ref().to_glib_none().0,
            ))
        }
    }

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

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

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

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

    fn offset(&self) -> (i32, i32) {
        unsafe {
            let mut x_offset = mem::MaybeUninit::uninit();
            let mut y_offset = mem::MaybeUninit::uninit();
            ffi::gtk_popover_get_offset(
                self.as_ref().to_glib_none().0,
                x_offset.as_mut_ptr(),
                y_offset.as_mut_ptr(),
            );
            let x_offset = x_offset.assume_init();
            let y_offset = y_offset.assume_init();
            (x_offset, y_offset)
        }
    }

    fn pointing_to(&self) -> Option<gdk::Rectangle> {
        unsafe {
            let mut rect = gdk::Rectangle::uninitialized();
            let ret = from_glib(ffi::gtk_popover_get_pointing_to(
                self.as_ref().to_glib_none().0,
                rect.to_glib_none_mut().0,
            ));
            if ret {
                Some(rect)
            } else {
                None
            }
        }
    }

    fn position(&self) -> PositionType {
        unsafe {
            from_glib(ffi::gtk_popover_get_position(
                self.as_ref().to_glib_none().0,
            ))
        }
    }

    fn popdown(&self) {
        unsafe {
            ffi::gtk_popover_popdown(self.as_ref().to_glib_none().0);
        }
    }

    fn popup(&self) {
        unsafe {
            ffi::gtk_popover_popup(self.as_ref().to_glib_none().0);
        }
    }

    fn present(&self) {
        unsafe {
            ffi::gtk_popover_present(self.as_ref().to_glib_none().0);
        }
    }

    fn set_autohide(&self, autohide: bool) {
        unsafe {
            ffi::gtk_popover_set_autohide(self.as_ref().to_glib_none().0, autohide.into_glib());
        }
    }

    fn set_cascade_popdown(&self, cascade_popdown: bool) {
        unsafe {
            ffi::gtk_popover_set_cascade_popdown(
                self.as_ref().to_glib_none().0,
                cascade_popdown.into_glib(),
            );
        }
    }

    fn set_child(&self, child: Option<&impl IsA<Widget>>) {
        unsafe {
            ffi::gtk_popover_set_child(
                self.as_ref().to_glib_none().0,
                child.map(|p| p.as_ref()).to_glib_none().0,
            );
        }
    }

    fn set_default_widget(&self, widget: Option<&impl IsA<Widget>>) {
        unsafe {
            ffi::gtk_popover_set_default_widget(
                self.as_ref().to_glib_none().0,
                widget.map(|p| p.as_ref()).to_glib_none().0,
            );
        }
    }

    fn set_has_arrow(&self, has_arrow: bool) {
        unsafe {
            ffi::gtk_popover_set_has_arrow(self.as_ref().to_glib_none().0, has_arrow.into_glib());
        }
    }

    fn set_mnemonics_visible(&self, mnemonics_visible: bool) {
        unsafe {
            ffi::gtk_popover_set_mnemonics_visible(
                self.as_ref().to_glib_none().0,
                mnemonics_visible.into_glib(),
            );
        }
    }

    fn set_offset(&self, x_offset: i32, y_offset: i32) {
        unsafe {
            ffi::gtk_popover_set_offset(self.as_ref().to_glib_none().0, x_offset, y_offset);
        }
    }

    fn set_pointing_to(&self, rect: &gdk::Rectangle) {
        unsafe {
            ffi::gtk_popover_set_pointing_to(self.as_ref().to_glib_none().0, rect.to_glib_none().0);
        }
    }

    fn set_position(&self, position: PositionType) {
        unsafe {
            ffi::gtk_popover_set_position(self.as_ref().to_glib_none().0, position.into_glib());
        }
    }

    fn default_widget(&self) -> Option<Widget> {
        unsafe {
            let mut value = glib::Value::from_type(<Widget as StaticType>::static_type());
            glib::gobject_ffi::g_object_get_property(
                self.to_glib_none().0 as *mut glib::gobject_ffi::GObject,
                b"default-widget\0".as_ptr() as *const _,
                value.to_glib_none_mut().0,
            );
            value
                .get()
                .expect("Return Value for property `default-widget` getter")
        }
    }

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

    fn emit_activate_default(&self) {
        let _ = unsafe {
            glib::Object::from_glib_borrow(self.as_ptr() as *mut glib::gobject_ffi::GObject)
                .emit_by_name("activate-default", &[])
                .unwrap()
        };
    }

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

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

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

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

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

    fn connect_has_arrow_notify<F: Fn(&Self) + 'static>(&self, f: F) -> SignalHandlerId {
        unsafe extern "C" fn notify_has_arrow_trampoline<P: IsA<Popover>, F: Fn(&P) + 'static>(
            this: *mut ffi::GtkPopover,
            _param_spec: glib::ffi::gpointer,
            f: glib::ffi::gpointer,
        ) {
            let f: &F = &*(f as *const F);
            f(Popover::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-arrow\0".as_ptr() as *const _,
                Some(transmute::<_, unsafe extern "C" fn()>(
                    notify_has_arrow_trampoline::<Self, F> as *const (),
                )),
                Box_::into_raw(f),
            )
        }
    }

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

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

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

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