gtk4/auto/

assistant.rs

// This file was generated by gir (https://github.com/gtk-rs/gir)
// from gir-files (https://github.com/gtk-rs/gir-files)
// DO NOT EDIT
#![allow(deprecated)]

#[cfg(feature = "v4_20")]
#[cfg_attr(docsrs, doc(cfg(feature = "v4_20")))]
use crate::WindowGravity;
use crate::{
    Accessible, AccessibleRole, Align, Application, AssistantPage, AssistantPageType, Buildable,
    ConstraintTarget, LayoutManager, Native, Overflow, Root, ShortcutManager, Widget, Window, ffi,
};
use glib::{
    object::ObjectType as _,
    prelude::*,
    signal::{SignalHandlerId, connect_raw},
    translate::*,
};
use std::boxed::Box as Box_;

glib::wrapper! {
    /// This widget will be removed in GTK 5
    /// [`Assistant`][crate::Assistant] is used to represent a complex as a series of steps.
    ///
    /// <picture>
    ///   <source srcset="assistant-dark.png" media="(prefers-color-scheme: dark)">
    ///   <img alt="An example GtkAssistant" src="assistant.png">
    /// </picture>
    ///
    /// Each step consists of one or more pages. [`Assistant`][crate::Assistant] guides the user
    /// through the pages, and controls the page flow to collect the data needed
    /// for the operation.
    ///
    /// [`Assistant`][crate::Assistant] handles which buttons to show and to make sensitive based
    /// on page sequence knowledge and the [`AssistantPageType`][crate::AssistantPageType] of each
    /// page in addition to state information like the *completed* and *committed*
    /// page statuses.
    ///
    /// If you have a case that doesn’t quite fit in [`Assistant`][crate::Assistant]s way of
    /// handling buttons, you can use the [`AssistantPageType::Custom`][crate::AssistantPageType::Custom] page
    /// type and handle buttons yourself.
    ///
    /// [`Assistant`][crate::Assistant] maintains a [`AssistantPage`][crate::AssistantPage] object for each added
    /// child, which holds additional per-child properties. You
    /// obtain the [`AssistantPage`][crate::AssistantPage] for a child with [`page()`][Self::page()].
    ///
    /// # GtkAssistant as GtkBuildable
    ///
    /// The [`Assistant`][crate::Assistant] implementation of the [`Buildable`][crate::Buildable] interface
    /// exposes the @action_area as internal children with the name
    /// “action_area”.
    ///
    /// To add pages to an assistant in [`Builder`][crate::Builder], simply add it as a
    /// child to the [`Assistant`][crate::Assistant] object. If you need to set per-object
    /// properties, create a [`AssistantPage`][crate::AssistantPage] object explicitly, and
    /// set the child widget as a property on it.
    ///
    /// # CSS nodes
    ///
    /// [`Assistant`][crate::Assistant] has a single CSS node with the name window and style
    /// class .assistant.
    ///
    /// ## Properties
    ///
    ///
    /// #### `pages`
    ///  `GListModel` containing the pages.
    ///
    /// Readable
    ///
    ///
    /// #### `use-header-bar`
    ///  [`true`] if the assistant uses a [`HeaderBar`][crate::HeaderBar] for action buttons
    /// instead of the action-area.
    ///
    /// For technical reasons, this property is declared as an integer
    /// property, but you should only set it to [`true`] or [`false`].
    ///
    /// Readable | Writeable | Construct Only
    /// <details><summary><h4>Window</h4></summary>
    ///
    ///
    /// #### `application`
    ///  The [`Application`][crate::Application] associated with the window.
    ///
    /// The application will be kept alive for at least as long as it
    /// has any windows associated with it (see g_application_hold()
    /// for a way to keep it alive without windows).
    ///
    /// Normally, the connection between the application and the window
    /// will remain until the window is destroyed, but you can explicitly
    /// remove it by setting the this property to `NULL`.
    ///
    /// Readable | Writeable
    ///
    ///
    /// #### `child`
    ///  The child widget.
    ///
    /// Readable | Writeable
    ///
    ///
    /// #### `decorated`
    ///  Whether the window should have a frame (also known as *decorations*).
    ///
    /// Readable | Writeable
    ///
    ///
    /// #### `default-height`
    ///  The default height of the window.
    ///
    /// Readable | Writeable
    ///
    ///
    /// #### `default-widget`
    ///  The default widget.
    ///
    /// Readable | Writeable
    ///
    ///
    /// #### `default-width`
    ///  The default width of the window.
    ///
    /// Readable | Writeable
    ///
    ///
    /// #### `deletable`
    ///  Whether the window frame should have a close button.
    ///
    /// Readable | Writeable
    ///
    ///
    /// #### `destroy-with-parent`
    ///  If this window should be destroyed when the parent is destroyed.
    ///
    /// Readable | Writeable
    ///
    ///
    /// #### `display`
    ///  The display that will display this window.
    ///
    /// Readable | Writeable
    ///
    ///
    /// #### `focus-visible`
    ///  Whether 'focus rectangles' are currently visible in this window.
    ///
    /// This property is maintained by GTK based on user input
    /// and should not be set by applications.
    ///
    /// Readable | Writeable
    ///
    ///
    /// #### `focus-widget`
    ///  The focus widget.
    ///
    /// Readable | Writeable
    ///
    ///
    /// #### `fullscreened`
    ///  Whether the window is fullscreen.
    ///
    /// Setting this property is the equivalent of calling
    /// [`GtkWindowExt::fullscreen()`][crate::prelude::GtkWindowExt::fullscreen()] or [`GtkWindowExt::unfullscreen()`][crate::prelude::GtkWindowExt::unfullscreen()];
    /// either operation is asynchronous, which means you will need to
    /// connect to the ::notify signal in order to know whether the
    /// operation was successful.
    ///
    /// Readable | Writeable
    ///
    ///
    /// #### `gravity`
    ///  The gravity to use when resizing the window programmatically.
    ///
    /// Gravity describes which point of the window we want to keep
    /// fixed (meaning that the window will grow in the opposite direction).
    /// For example, a gravity of `GTK_WINDOW_GRAVITY_TOP_RIGHT` means that we
    /// want the to fix top right corner of the window.
    ///
    /// Readable | Writeable
    ///
    ///
    /// #### `handle-menubar-accel`
    ///  Whether the window frame should handle <kbd>F10</kbd> for activating
    /// menubars.
    ///
    /// Readable | Writeable
    ///
    ///
    /// #### `hide-on-close`
    ///  If this window should be hidden instead of destroyed when the user clicks
    /// the close button.
    ///
    /// Readable | Writeable
    ///
    ///
    /// #### `icon-name`
    ///  Specifies the name of the themed icon to use as the window icon.
    ///
    /// See [`IconTheme`][crate::IconTheme] for more details.
    ///
    /// Readable | Writeable
    ///
    ///
    /// #### `is-active`
    ///  Whether the toplevel is the currently active window.
    ///
    /// Readable
    ///
    ///
    /// #### `maximized`
    ///  Whether the window is maximized.
    ///
    /// Setting this property is the equivalent of calling
    /// [`GtkWindowExt::maximize()`][crate::prelude::GtkWindowExt::maximize()] or [`GtkWindowExt::unmaximize()`][crate::prelude::GtkWindowExt::unmaximize()];
    /// either operation is asynchronous, which means you will need to
    /// connect to the ::notify signal in order to know whether the
    /// operation was successful.
    ///
    /// Readable | Writeable
    ///
    ///
    /// #### `mnemonics-visible`
    ///  Whether mnemonics are currently visible in this window.
    ///
    /// This property is maintained by GTK based on user input,
    /// and should not be set by applications.
    ///
    /// Readable | Writeable
    ///
    ///
    /// #### `modal`
    ///  If true, the window is modal.
    ///
    /// Readable | Writeable
    ///
    ///
    /// #### `resizable`
    ///  If true, users can resize the window.
    ///
    /// Readable | Writeable
    ///
    ///
    /// #### `startup-id`
    ///  A write-only property for setting window's startup notification identifier.
    ///
    /// Writeable
    ///
    ///
    /// #### `suspended`
    ///  Whether the window is suspended.
    ///
    /// See [`GtkWindowExt::is_suspended()`][crate::prelude::GtkWindowExt::is_suspended()] for details about what suspended means.
    ///
    /// Readable
    ///
    ///
    /// #### `title`
    ///  The title of the window.
    ///
    /// Readable | Writeable
    ///
    ///
    /// #### `titlebar`
    ///  The titlebar widget.
    ///
    /// Readable | Writeable
    ///
    ///
    /// #### `transient-for`
    ///  The transient parent of the window.
    ///
    /// Readable | Writeable | Construct
    /// </details>
    /// <details><summary><h4>Widget</h4></summary>
    ///
    ///
    /// #### `can-focus`
    ///  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.
    ///
    /// Readable | Writeable
    ///
    ///
    /// #### `can-target`
    ///  Whether the widget can receive pointer events.
    ///
    /// Readable | Writeable
    ///
    ///
    /// #### `css-classes`
    ///  A list of css classes applied to this widget.
    ///
    /// Readable | Writeable
    ///
    ///
    /// #### `css-name`
    ///  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.
    ///
    /// Readable | Writeable | Construct Only
    ///
    ///
    /// #### `cursor`
    ///  The cursor used by @widget.
    ///
    /// 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.
    ///
    /// Readable | Writeable
    ///
    ///
    /// #### `focusable`
    ///  Whether this widget itself will accept the input focus.
    ///
    /// Readable | Writeable
    ///
    ///
    /// #### `halign`
    ///  How to distribute horizontal space if widget gets extra space.
    ///
    /// Readable | Writeable
    ///
    ///
    /// #### `has-default`
    ///  Whether the widget is the default widget.
    ///
    /// Readable
    ///
    ///
    /// #### `has-focus`
    ///  Whether the widget has the input focus.
    ///
    /// Readable
    ///
    ///
    /// #### `has-tooltip`
    ///  Enables or disables the emission of the [`query-tooltip`][struct@crate::Widget#query-tooltip]
    /// signal on @widget.
    ///
    /// A true value indicates that @widget can have a tooltip, in this case
    /// the widget will be queried using [`query-tooltip`][struct@crate::Widget#query-tooltip] to
    /// determine whether it will provide a tooltip or not.
    ///
    /// Readable | Writeable
    ///
    ///
    /// #### `height-request`
    ///  Overrides for height request of the widget.
    ///
    /// If this is -1, the natural request will be used.
    ///
    /// Readable | Writeable
    ///
    ///
    /// #### `hexpand`
    ///  Whether to expand horizontally.
    ///
    /// Readable | Writeable
    ///
    ///
    /// #### `hexpand-set`
    ///  Whether to use the `hexpand` property.
    ///
    /// Readable | Writeable
    ///
    ///
    /// #### `layout-manager`
    ///  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.
    ///
    /// Readable | Writeable
    ///
    ///
    /// #### `limit-events`
    ///  Makes this widget act like a modal dialog, with respect to
    /// event delivery.
    ///
    /// Global event controllers will not handle events with targets
    /// inside the widget, unless they are set up to ignore propagation
    /// limits. See [`EventControllerExt::set_propagation_limit()`][crate::prelude::EventControllerExt::set_propagation_limit()].
    ///
    /// 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
    /// [`WidgetExt::set_size_request()`][crate::prelude::WidgetExt::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
    /// [`WidgetExt::set_size_request()`][crate::prelude::WidgetExt::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
    /// [`WidgetExt::set_size_request()`][crate::prelude::WidgetExt::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
    /// [`WidgetExt::set_size_request()`][crate::prelude::WidgetExt::set_size_request()] for example.
    ///
    /// Readable | Writeable
    ///
    ///
    /// #### `name`
    ///  The name of the widget.
    ///
    /// Readable | Writeable
    ///
    ///
    /// #### `opacity`
    ///  The requested opacity of the widget.
    ///
    /// Readable | Writeable
    ///
    ///
    /// #### `overflow`
    ///  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.
    ///
    /// Readable | Writeable
    ///
    ///
    /// #### `parent`
    ///  The parent widget of this widget.
    ///
    /// Readable
    ///
    ///
    /// #### `receives-default`
    ///  Whether the widget will receive the default action when it is focused.
    ///
    /// Readable | Writeable
    ///
    ///
    /// #### `root`
    ///  The [`Root`][crate::Root] widget of the widget tree containing this widget.
    ///
    /// This will be `NULL` if the widget is not contained in a root widget.
    ///
    /// Readable
    ///
    ///
    /// #### `scale-factor`
    ///  The scale factor of the widget.
    ///
    /// Readable
    ///
    ///
    /// #### `sensitive`
    ///  Whether the widget responds to input.
    ///
    /// Readable | Writeable
    ///
    ///
    /// #### `tooltip-markup`
    ///  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 `NULL`:
    /// [`has-tooltip`][struct@crate::Widget#has-tooltip] will automatically be set to true
    /// and there will be taken care of [`query-tooltip`][struct@crate::Widget#query-tooltip] in
    /// the default signal handler.
    ///
    /// Note that if both [`tooltip-text`][struct@crate::Widget#tooltip-text] and
    /// [`tooltip-markup`][struct@crate::Widget#tooltip-markup] are set, the last one wins.
    ///
    /// Readable | Writeable
    ///
    ///
    /// #### `tooltip-text`
    ///  Sets the text of tooltip to be the given string.
    ///
    /// Also see [`Tooltip::set_text()`][crate::Tooltip::set_text()].
    ///
    /// This is a convenience property which will take care of getting the
    /// tooltip shown if the given string is not `NULL`:
    /// [`has-tooltip`][struct@crate::Widget#has-tooltip] will automatically be set to true
    /// and there will be taken care of [`query-tooltip`][struct@crate::Widget#query-tooltip] in
    /// the default signal handler.
    ///
    /// Note that if both [`tooltip-text`][struct@crate::Widget#tooltip-text] and
    /// [`tooltip-markup`][struct@crate::Widget#tooltip-markup] are set, the last one wins.
    ///
    /// Readable | Writeable
    ///
    ///
    /// #### `valign`
    ///  How to distribute vertical space if widget gets extra space.
    ///
    /// Readable | Writeable
    ///
    ///
    /// #### `vexpand`
    ///  Whether to expand vertically.
    ///
    /// Readable | Writeable
    ///
    ///
    /// #### `vexpand-set`
    ///  Whether to use the `vexpand` property.
    ///
    /// Readable | Writeable
    ///
    ///
    /// #### `visible`
    ///  Whether the widget is visible.
    ///
    /// Readable | Writeable
    ///
    ///
    /// #### `width-request`
    ///  Overrides for width request of the widget.
    ///
    /// If this is -1, the natural request will be used.
    ///
    /// Readable | Writeable
    /// </details>
    /// <details><summary><h4>Accessible</h4></summary>
    ///
    ///
    /// #### `accessible-role`
    ///  The accessible role of the given [`Accessible`][crate::Accessible] implementation.
    ///
    /// The accessible role cannot be changed once set.
    ///
    /// Readable | Writeable
    /// </details>
    ///
    /// ## Signals
    ///
    ///
    /// #### `apply`
    ///  Emitted when the apply button is clicked.
    ///
    /// The default behavior of the [`Assistant`][crate::Assistant] is to switch to the page
    /// after the current page, unless the current page is the last one.
    ///
    /// A handler for the ::apply signal should carry out the actions for
    /// which the wizard has collected data. If the action takes a long time
    /// to complete, you might consider putting a page of type
    /// [`AssistantPageType::Progress`][crate::AssistantPageType::Progress] after the confirmation page and handle
    /// this operation within the [`prepare`][struct@crate::Assistant#prepare] signal of
    /// the progress page.
    ///
    ///
    ///
    ///
    /// #### `cancel`
    ///  Emitted when then the cancel button is clicked.
    ///
    ///
    ///
    ///
    /// #### `close`
    ///  Emitted either when the close button of a summary page is clicked,
    /// or when the apply button in the last page in the flow (of type
    /// [`AssistantPageType::Confirm`][crate::AssistantPageType::Confirm]) is clicked.
    ///
    ///
    ///
    ///
    /// #### `escape`
    ///  The action signal for the Escape binding.
    ///
    /// Action
    ///
    ///
    /// #### `prepare`
    ///  Emitted when a new page is set as the assistant's current page,
    /// before making the new page visible.
    ///
    /// A handler for this signal can do any preparations which are
    /// necessary before showing @page.
    ///
    ///
    /// <details><summary><h4>Window</h4></summary>
    ///
    ///
    /// #### `activate-default`
    ///  Emitted when the user activates the default widget.
    ///
    /// This is a [keybinding signal](class.SignalAction.html).
    ///
    /// The keybindings for this signal are all forms of the <kbd>Enter</kbd> key.
    ///
    /// Action
    ///
    ///
    /// #### `activate-focus`
    ///  Emitted when the user activates the currently focused
    /// widget of @window.
    ///
    /// This is a [keybinding signal](class.SignalAction.html).
    ///
    /// The default binding for this signal is <kbd>␣</kbd>.
    ///
    /// Action
    ///
    ///
    /// #### `close-request`
    ///  Emitted when the user clicks on the close button of the window.
    ///
    ///
    ///
    ///
    /// #### `enable-debugging`
    ///  Emitted when the user enables or disables interactive debugging.
    ///
    /// When @toggle is true, interactive debugging is toggled on or off,
    /// when it is false, the debugger will be pointed at the widget
    /// under the pointer.
    ///
    /// This is a [keybinding signal](class.SignalAction.html).
    ///
    /// The default bindings for this signal are
    /// <kbd>Ctrl</kbd>+<kbd>Shift</kbd>+<kbd>I</kbd> and
    /// <kbd>Ctrl</kbd>+<kbd>Shift</kbd>+<kbd>D</kbd>.
    ///
    /// Action
    ///
    ///
    /// #### `force-close`
    ///  Emitted when the compositor has decided to eliminate a window.
    ///
    /// @window *has* to be in a hidden state after this signal was handled.
    ///
    ///
    ///
    ///
    /// #### `keys-changed`
    ///  Emitted when the set of accelerators or mnemonics that
    /// are associated with the window changes.
    ///
    ///
    /// </details>
    /// <details><summary><h4>Widget</h4></summary>
    ///
    ///
    /// #### `destroy`
    ///  Signals that all holders of a reference to the widget should release
    /// the reference that they hold.
    ///
    /// May result in finalization of the widget if all references are released.
    ///
    /// This signal is not suitable for saving widget state.
    ///
    ///
    ///
    ///
    /// #### `direction-changed`
    ///  Emitted when the text direction of a widget changes.
    ///
    ///
    ///
    ///
    /// #### `hide`
    ///  Emitted when @widget is hidden.
    ///
    ///
    ///
    ///
    /// #### `keynav-failed`
    ///  Emitted if keyboard navigation fails.
    ///
    /// See [`WidgetExt::keynav_failed()`][crate::prelude::WidgetExt::keynav_failed()] for details.
    ///
    ///
    ///
    ///
    /// #### `map`
    ///  Emitted when @widget is going to be mapped.
    ///
    /// A widget is mapped when the widget is visible (which is controlled with
    /// [`visible`][struct@crate::Widget#visible]) and all its parents up to the toplevel widget
    /// are also visible.
    ///
    /// The `::map` signal can be used to determine whether a widget will be drawn,
    /// for instance it can resume an animation that was stopped during the
    /// emission of [`unmap`][struct@crate::Widget#unmap].
    ///
    ///
    ///
    ///
    /// #### `mnemonic-activate`
    ///  Emitted when a widget is activated via a mnemonic.
    ///
    /// The default handler for this signal activates @widget if @group_cycling
    /// is false, or just makes @widget grab focus if @group_cycling is true.
    ///
    ///
    ///
    ///
    /// #### `move-focus`
    ///  Emitted when the focus is moved.
    ///
    /// The `::move-focus` signal is a [keybinding signal](class.SignalAction.html).
    ///
    /// The default bindings for this signal are <kbd>Tab</kbd> to move forward,
    /// and <kbd>Shift</kbd>+<kbd>Tab</kbd> to move backward.
    ///
    /// Action
    ///
    ///
    /// #### `query-tooltip`
    ///  Emitted when the widget’s tooltip is about to be shown.
    ///
    /// This happens when the [`has-tooltip`][struct@crate::Widget#has-tooltip] property
    /// is true and the hover timeout has expired with the cursor hovering
    /// above @widget; or emitted when @widget got focus in keyboard mode.
    ///
    /// Using the given coordinates, the signal handler should determine
    /// whether a tooltip should be shown for @widget. If this is the case
    /// true should be returned, false otherwise. Note that if @keyboard_mode
    /// is true, the values of @x and @y are undefined and should not be used.
    ///
    /// The signal handler is free to manipulate @tooltip with the therefore
    /// destined function calls.
    ///
    ///
    ///
    ///
    /// #### `realize`
    ///  Emitted when @widget is associated with a [`gdk::Surface`][crate::gdk::Surface].
    ///
    /// This means that [`WidgetExt::realize()`][crate::prelude::WidgetExt::realize()] has been called
    /// or the widget has been mapped (that is, it is going to be drawn).
    ///
    ///
    ///
    ///
    /// #### `show`
    ///  Emitted when @widget is shown.
    ///
    ///
    ///
    ///
    /// #### `state-flags-changed`
    ///  Emitted when the widget state changes.
    ///
    /// See [`WidgetExt::state_flags()`][crate::prelude::WidgetExt::state_flags()].
    ///
    ///
    ///
    ///
    /// #### `unmap`
    ///  Emitted when @widget is going to be unmapped.
    ///
    /// A widget is unmapped when either it or any of its parents up to the
    /// toplevel widget have been set as hidden.
    ///
    /// As `::unmap` indicates that a widget will not be shown any longer,
    /// it can be used to, for example, stop an animation on the widget.
    ///
    ///
    ///
    ///
    /// #### `unrealize`
    ///  Emitted when the [`gdk::Surface`][crate::gdk::Surface] associated with @widget is destroyed.
    ///
    /// This means that [`WidgetExt::unrealize()`][crate::prelude::WidgetExt::unrealize()] has been called
    /// or the widget has been unmapped (that is, it is going to be hidden).
    ///
    ///
    /// </details>
    ///
    /// # Implements
    ///
    /// [`GtkWindowExt`][trait@crate::prelude::GtkWindowExt], [`WidgetExt`][trait@crate::prelude::WidgetExt], [`trait@glib::ObjectExt`], [`AccessibleExt`][trait@crate::prelude::AccessibleExt], [`BuildableExt`][trait@crate::prelude::BuildableExt], [`ConstraintTargetExt`][trait@crate::prelude::ConstraintTargetExt], [`NativeExt`][trait@crate::prelude::NativeExt], [`RootExt`][trait@crate::prelude::RootExt], [`ShortcutManagerExt`][trait@crate::prelude::ShortcutManagerExt], [`WidgetExtManual`][trait@crate::prelude::WidgetExtManual], [`AccessibleExtManual`][trait@crate::prelude::AccessibleExtManual]
    #[doc(alias = "GtkAssistant")]
    pub struct Assistant(Object<ffi::GtkAssistant>) @extends Window, Widget, @implements Accessible, Buildable, ConstraintTarget, Native, Root, ShortcutManager;

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

impl Assistant {
    /// Creates a new [`Assistant`][crate::Assistant].
    ///
    /// # Deprecated since 4.10
    ///
    /// This widget will be removed in GTK 5
    ///
    /// # Returns
    ///
    /// a newly created [`Assistant`][crate::Assistant]
    #[cfg_attr(feature = "v4_10", deprecated = "Since 4.10")]
    #[allow(deprecated)]
    #[doc(alias = "gtk_assistant_new")]
    pub fn new() -> Assistant {
        assert_initialized_main_thread!();
        unsafe { Widget::from_glib_none(ffi::gtk_assistant_new()).unsafe_cast() }
    }

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

    /// Adds a widget to the action area of a [`Assistant`][crate::Assistant].
    ///
    /// # Deprecated since 4.10
    ///
    /// This widget will be removed in GTK 5
    /// ## `child`
    /// a [`Widget`][crate::Widget]
    #[cfg_attr(feature = "v4_10", deprecated = "Since 4.10")]
    #[allow(deprecated)]
    #[doc(alias = "gtk_assistant_add_action_widget")]
    pub fn add_action_widget(&self, child: &impl IsA<Widget>) {
        unsafe {
            ffi::gtk_assistant_add_action_widget(
                self.to_glib_none().0,
                child.as_ref().to_glib_none().0,
            );
        }
    }

    /// Appends a page to the @self.
    ///
    /// # Deprecated since 4.10
    ///
    /// This widget will be removed in GTK 5
    /// ## `page`
    /// a [`Widget`][crate::Widget]
    ///
    /// # Returns
    ///
    /// the index (starting at 0) of the inserted page
    #[cfg_attr(feature = "v4_10", deprecated = "Since 4.10")]
    #[allow(deprecated)]
    #[doc(alias = "gtk_assistant_append_page")]
    pub fn append_page(&self, page: &impl IsA<Widget>) -> i32 {
        unsafe {
            ffi::gtk_assistant_append_page(self.to_glib_none().0, page.as_ref().to_glib_none().0)
        }
    }

    /// Erases the visited page history.
    ///
    /// GTK will then hide the back button on the current page,
    /// and removes the cancel button from subsequent pages.
    ///
    /// Use this when the information provided up to the current
    /// page is hereafter deemed permanent and cannot be modified
    /// or undone. For example, showing a progress page to track
    /// a long-running, unreversible operation after the user has
    /// clicked apply on a confirmation page.
    ///
    /// # Deprecated since 4.10
    ///
    /// This widget will be removed in GTK 5
    #[cfg_attr(feature = "v4_10", deprecated = "Since 4.10")]
    #[allow(deprecated)]
    #[doc(alias = "gtk_assistant_commit")]
    pub fn commit(&self) {
        unsafe {
            ffi::gtk_assistant_commit(self.to_glib_none().0);
        }
    }

    /// Returns the page number of the current page.
    ///
    /// # Deprecated since 4.10
    ///
    /// This widget will be removed in GTK 5
    ///
    /// # Returns
    ///
    /// The index (starting from 0) of the current
    ///   page in the @self, or -1 if the @self has no pages,
    ///   or no current page
    #[cfg_attr(feature = "v4_10", deprecated = "Since 4.10")]
    #[allow(deprecated)]
    #[doc(alias = "gtk_assistant_get_current_page")]
    #[doc(alias = "get_current_page")]
    pub fn current_page(&self) -> i32 {
        unsafe { ffi::gtk_assistant_get_current_page(self.to_glib_none().0) }
    }

    /// Returns the number of pages in the @self
    ///
    /// # Deprecated since 4.10
    ///
    /// This widget will be removed in GTK 5
    ///
    /// # Returns
    ///
    /// the number of pages in the @self
    #[cfg_attr(feature = "v4_10", deprecated = "Since 4.10")]
    #[allow(deprecated)]
    #[doc(alias = "gtk_assistant_get_n_pages")]
    #[doc(alias = "get_n_pages")]
    pub fn n_pages(&self) -> i32 {
        unsafe { ffi::gtk_assistant_get_n_pages(self.to_glib_none().0) }
    }

    /// Returns the child widget contained in page number @page_num.
    ///
    /// # Deprecated since 4.10
    ///
    /// This widget will be removed in GTK 5
    /// ## `page_num`
    /// the index of a page in the @self,
    ///   or -1 to get the last page
    ///
    /// # Returns
    ///
    /// the child widget, or [`None`]
    ///   if @page_num is out of bounds
    #[cfg_attr(feature = "v4_10", deprecated = "Since 4.10")]
    #[allow(deprecated)]
    #[doc(alias = "gtk_assistant_get_nth_page")]
    #[doc(alias = "get_nth_page")]
    pub fn nth_page(&self, page_num: i32) -> Option<Widget> {
        unsafe {
            from_glib_none(ffi::gtk_assistant_get_nth_page(
                self.to_glib_none().0,
                page_num,
            ))
        }
    }

    /// Returns the [`AssistantPage`][crate::AssistantPage] object for @child.
    ///
    /// # Deprecated since 4.10
    ///
    /// This widget will be removed in GTK 5
    /// ## `child`
    /// a child of @self
    ///
    /// # Returns
    ///
    /// the [`AssistantPage`][crate::AssistantPage] for @child
    #[cfg_attr(feature = "v4_10", deprecated = "Since 4.10")]
    #[allow(deprecated)]
    #[doc(alias = "gtk_assistant_get_page")]
    #[doc(alias = "get_page")]
    pub fn page(&self, child: &impl IsA<Widget>) -> AssistantPage {
        unsafe {
            from_glib_none(ffi::gtk_assistant_get_page(
                self.to_glib_none().0,
                child.as_ref().to_glib_none().0,
            ))
        }
    }

    /// Gets whether @page is complete.
    ///
    /// # Deprecated since 4.10
    ///
    /// This widget will be removed in GTK 5
    /// ## `page`
    /// a page of @self
    ///
    /// # Returns
    ///
    /// [`true`] if @page is complete.
    #[cfg_attr(feature = "v4_10", deprecated = "Since 4.10")]
    #[allow(deprecated)]
    #[doc(alias = "gtk_assistant_get_page_complete")]
    #[doc(alias = "get_page_complete")]
    pub fn page_is_complete(&self, page: &impl IsA<Widget>) -> bool {
        unsafe {
            from_glib(ffi::gtk_assistant_get_page_complete(
                self.to_glib_none().0,
                page.as_ref().to_glib_none().0,
            ))
        }
    }

    /// Gets the title for @page.
    ///
    /// # Deprecated since 4.10
    ///
    /// This widget will be removed in GTK 5
    /// ## `page`
    /// a page of @self
    ///
    /// # Returns
    ///
    /// the title for @page
    #[cfg_attr(feature = "v4_10", deprecated = "Since 4.10")]
    #[allow(deprecated)]
    #[doc(alias = "gtk_assistant_get_page_title")]
    #[doc(alias = "get_page_title")]
    pub fn page_title(&self, page: &impl IsA<Widget>) -> glib::GString {
        unsafe {
            from_glib_none(ffi::gtk_assistant_get_page_title(
                self.to_glib_none().0,
                page.as_ref().to_glib_none().0,
            ))
        }
    }

    /// Gets the page type of @page.
    ///
    /// # Deprecated since 4.10
    ///
    /// This widget will be removed in GTK 5
    /// ## `page`
    /// a page of @self
    ///
    /// # Returns
    ///
    /// the page type of @page
    #[cfg_attr(feature = "v4_10", deprecated = "Since 4.10")]
    #[allow(deprecated)]
    #[doc(alias = "gtk_assistant_get_page_type")]
    #[doc(alias = "get_page_type")]
    pub fn page_type(&self, page: &impl IsA<Widget>) -> AssistantPageType {
        unsafe {
            from_glib(ffi::gtk_assistant_get_page_type(
                self.to_glib_none().0,
                page.as_ref().to_glib_none().0,
            ))
        }
    }

    /// Gets a list model of the assistant pages.
    ///
    /// # Deprecated since 4.10
    ///
    /// This widget will be removed in GTK 5
    ///
    /// # Returns
    ///
    /// A list model of the pages.
    #[cfg_attr(feature = "v4_10", deprecated = "Since 4.10")]
    #[allow(deprecated)]
    #[doc(alias = "gtk_assistant_get_pages")]
    #[doc(alias = "get_pages")]
    pub fn pages(&self) -> gio::ListModel {
        unsafe { from_glib_full(ffi::gtk_assistant_get_pages(self.to_glib_none().0)) }
    }

    /// Inserts a page in the @self at a given position.
    ///
    /// # Deprecated since 4.10
    ///
    /// This widget will be removed in GTK 5
    /// ## `page`
    /// a [`Widget`][crate::Widget]
    /// ## `position`
    /// the index (starting at 0) at which to insert the page,
    ///   or -1 to append the page to the @self
    ///
    /// # Returns
    ///
    /// the index (starting from 0) of the inserted page
    #[cfg_attr(feature = "v4_10", deprecated = "Since 4.10")]
    #[allow(deprecated)]
    #[doc(alias = "gtk_assistant_insert_page")]
    pub fn insert_page(&self, page: &impl IsA<Widget>, position: i32) -> i32 {
        unsafe {
            ffi::gtk_assistant_insert_page(
                self.to_glib_none().0,
                page.as_ref().to_glib_none().0,
                position,
            )
        }
    }

    /// Navigate to the next page.
    ///
    /// It is a programming error to call this function when
    /// there is no next page.
    ///
    /// This function is for use when creating pages of the
    /// [`AssistantPageType::Custom`][crate::AssistantPageType::Custom] type.
    ///
    /// # Deprecated since 4.10
    ///
    /// This widget will be removed in GTK 5
    #[cfg_attr(feature = "v4_10", deprecated = "Since 4.10")]
    #[allow(deprecated)]
    #[doc(alias = "gtk_assistant_next_page")]
    pub fn next_page(&self) {
        unsafe {
            ffi::gtk_assistant_next_page(self.to_glib_none().0);
        }
    }

    /// Prepends a page to the @self.
    ///
    /// # Deprecated since 4.10
    ///
    /// This widget will be removed in GTK 5
    /// ## `page`
    /// a [`Widget`][crate::Widget]
    ///
    /// # Returns
    ///
    /// the index (starting at 0) of the inserted page
    #[cfg_attr(feature = "v4_10", deprecated = "Since 4.10")]
    #[allow(deprecated)]
    #[doc(alias = "gtk_assistant_prepend_page")]
    pub fn prepend_page(&self, page: &impl IsA<Widget>) -> i32 {
        unsafe {
            ffi::gtk_assistant_prepend_page(self.to_glib_none().0, page.as_ref().to_glib_none().0)
        }
    }

    /// Navigate to the previous visited page.
    ///
    /// It is a programming error to call this function when
    /// no previous page is available.
    ///
    /// This function is for use when creating pages of the
    /// [`AssistantPageType::Custom`][crate::AssistantPageType::Custom] type.
    ///
    /// # Deprecated since 4.10
    ///
    /// This widget will be removed in GTK 5
    #[cfg_attr(feature = "v4_10", deprecated = "Since 4.10")]
    #[allow(deprecated)]
    #[doc(alias = "gtk_assistant_previous_page")]
    pub fn previous_page(&self) {
        unsafe {
            ffi::gtk_assistant_previous_page(self.to_glib_none().0);
        }
    }

    /// Removes a widget from the action area of a [`Assistant`][crate::Assistant].
    ///
    /// # Deprecated since 4.10
    ///
    /// This widget will be removed in GTK 5
    /// ## `child`
    /// a [`Widget`][crate::Widget]
    #[cfg_attr(feature = "v4_10", deprecated = "Since 4.10")]
    #[allow(deprecated)]
    #[doc(alias = "gtk_assistant_remove_action_widget")]
    pub fn remove_action_widget(&self, child: &impl IsA<Widget>) {
        unsafe {
            ffi::gtk_assistant_remove_action_widget(
                self.to_glib_none().0,
                child.as_ref().to_glib_none().0,
            );
        }
    }

    /// Removes the @page_num’s page from @self.
    ///
    /// # Deprecated since 4.10
    ///
    /// This widget will be removed in GTK 5
    /// ## `page_num`
    /// the index of a page in the @self,
    ///   or -1 to remove the last page
    #[cfg_attr(feature = "v4_10", deprecated = "Since 4.10")]
    #[allow(deprecated)]
    #[doc(alias = "gtk_assistant_remove_page")]
    pub fn remove_page(&self, page_num: i32) {
        unsafe {
            ffi::gtk_assistant_remove_page(self.to_glib_none().0, page_num);
        }
    }

    /// Switches the page to @page_num.
    ///
    /// Note that this will only be necessary in custom buttons,
    /// as the @self flow can be set with
    /// gtk_assistant_set_forward_page_func().
    ///
    /// # Deprecated since 4.10
    ///
    /// This widget will be removed in GTK 5
    /// ## `page_num`
    /// index of the page to switch to, starting from 0.
    ///   If negative, the last page will be used. If greater
    ///   than the number of pages in the @self, nothing
    ///   will be done.
    #[cfg_attr(feature = "v4_10", deprecated = "Since 4.10")]
    #[allow(deprecated)]
    #[doc(alias = "gtk_assistant_set_current_page")]
    pub fn set_current_page(&self, page_num: i32) {
        unsafe {
            ffi::gtk_assistant_set_current_page(self.to_glib_none().0, page_num);
        }
    }

    /// Sets the page forwarding function to be @page_func.
    ///
    /// This function will be used to determine what will be
    /// the next page when the user presses the forward button.
    /// Setting @page_func to [`None`] will make the assistant to
    /// use the default forward function, which just goes to the
    /// next visible page.
    ///
    /// # Deprecated since 4.10
    ///
    /// This widget will be removed in GTK 5
    /// ## `page_func`
    /// the `GtkAssistantPageFunc`, or [`None`]
    ///   to use the default one
    #[cfg_attr(feature = "v4_10", deprecated = "Since 4.10")]
    #[allow(deprecated)]
    #[doc(alias = "gtk_assistant_set_forward_page_func")]
    pub fn set_forward_page_func<P: Fn(i32) -> i32 + 'static>(&self, page_func: P) {
        let page_func_data: Box_<P> = Box_::new(page_func);
        unsafe extern "C" fn page_func_func<P: Fn(i32) -> i32 + 'static>(
            current_page: std::ffi::c_int,
            data: glib::ffi::gpointer,
        ) -> std::ffi::c_int {
            unsafe {
                let callback = &*(data as *mut P);
                (*callback)(current_page)
            }
        }
        let page_func = Some(page_func_func::<P> as _);
        unsafe extern "C" fn destroy_func<P: Fn(i32) -> i32 + 'static>(data: glib::ffi::gpointer) {
            unsafe {
                let _callback = Box_::from_raw(data as *mut P);
            }
        }
        let destroy_call3 = Some(destroy_func::<P> as _);
        let super_callback0: Box_<P> = page_func_data;
        unsafe {
            ffi::gtk_assistant_set_forward_page_func(
                self.to_glib_none().0,
                page_func,
                Box_::into_raw(super_callback0) as *mut _,
                destroy_call3,
            );
        }
    }

    /// Sets whether @page contents are complete.
    ///
    /// This will make @self update the buttons state
    /// to be able to continue the task.
    ///
    /// # Deprecated since 4.10
    ///
    /// This widget will be removed in GTK 5
    /// ## `page`
    /// a page of @self
    /// ## `complete`
    /// the completeness status of the page
    #[cfg_attr(feature = "v4_10", deprecated = "Since 4.10")]
    #[allow(deprecated)]
    #[doc(alias = "gtk_assistant_set_page_complete")]
    pub fn set_page_complete(&self, page: &impl IsA<Widget>, complete: bool) {
        unsafe {
            ffi::gtk_assistant_set_page_complete(
                self.to_glib_none().0,
                page.as_ref().to_glib_none().0,
                complete.into_glib(),
            );
        }
    }

    /// Sets a title for @page.
    ///
    /// The title is displayed in the header area of the assistant
    /// when @page is the current page.
    ///
    /// # Deprecated since 4.10
    ///
    /// This widget will be removed in GTK 5
    /// ## `page`
    /// a page of @self
    /// ## `title`
    /// the new title for @page
    #[cfg_attr(feature = "v4_10", deprecated = "Since 4.10")]
    #[allow(deprecated)]
    #[doc(alias = "gtk_assistant_set_page_title")]
    pub fn set_page_title(&self, page: &impl IsA<Widget>, title: &str) {
        unsafe {
            ffi::gtk_assistant_set_page_title(
                self.to_glib_none().0,
                page.as_ref().to_glib_none().0,
                title.to_glib_none().0,
            );
        }
    }

    /// Sets the page type for @page.
    ///
    /// The page type determines the page behavior in the @self.
    ///
    /// # Deprecated since 4.10
    ///
    /// This widget will be removed in GTK 5
    /// ## `page`
    /// a page of @self
    /// ## `type_`
    /// the new type for @page
    #[cfg_attr(feature = "v4_10", deprecated = "Since 4.10")]
    #[allow(deprecated)]
    #[doc(alias = "gtk_assistant_set_page_type")]
    pub fn set_page_type(&self, page: &impl IsA<Widget>, type_: AssistantPageType) {
        unsafe {
            ffi::gtk_assistant_set_page_type(
                self.to_glib_none().0,
                page.as_ref().to_glib_none().0,
                type_.into_glib(),
            );
        }
    }

    /// Forces @self to recompute the buttons state.
    ///
    /// GTK automatically takes care of this in most situations,
    /// e.g. when the user goes to a different page, or when the
    /// visibility or completeness of a page changes.
    ///
    /// One situation where it can be necessary to call this
    /// function is when changing a value on the current page
    /// affects the future page flow of the assistant.
    ///
    /// # Deprecated since 4.10
    ///
    /// This widget will be removed in GTK 5
    #[cfg_attr(feature = "v4_10", deprecated = "Since 4.10")]
    #[allow(deprecated)]
    #[doc(alias = "gtk_assistant_update_buttons_state")]
    pub fn update_buttons_state(&self) {
        unsafe {
            ffi::gtk_assistant_update_buttons_state(self.to_glib_none().0);
        }
    }

    /// [`true`] if the assistant uses a [`HeaderBar`][crate::HeaderBar] for action buttons
    /// instead of the action-area.
    ///
    /// For technical reasons, this property is declared as an integer
    /// property, but you should only set it to [`true`] or [`false`].
    ///
    /// # Deprecated since 4.10
    ///
    /// This widget will be removed in GTK 5
    #[cfg_attr(feature = "v4_10", deprecated = "Since 4.10")]
    #[doc(alias = "use-header-bar")]
    pub fn use_header_bar(&self) -> i32 {
        ObjectExt::property(self, "use-header-bar")
    }

    /// Emitted when the apply button is clicked.
    ///
    /// The default behavior of the [`Assistant`][crate::Assistant] is to switch to the page
    /// after the current page, unless the current page is the last one.
    ///
    /// A handler for the ::apply signal should carry out the actions for
    /// which the wizard has collected data. If the action takes a long time
    /// to complete, you might consider putting a page of type
    /// [`AssistantPageType::Progress`][crate::AssistantPageType::Progress] after the confirmation page and handle
    /// this operation within the [`prepare`][struct@crate::Assistant#prepare] signal of
    /// the progress page.
    ///
    /// # Deprecated since 4.10
    ///
    /// This widget will be removed in GTK 5
    #[cfg_attr(feature = "v4_10", deprecated = "Since 4.10")]
    #[doc(alias = "apply")]
    pub fn connect_apply<F: Fn(&Self) + 'static>(&self, f: F) -> SignalHandlerId {
        unsafe extern "C" fn apply_trampoline<F: Fn(&Assistant) + 'static>(
            this: *mut ffi::GtkAssistant,
            f: glib::ffi::gpointer,
        ) {
            unsafe {
                let f: &F = &*(f as *const F);
                f(&from_glib_borrow(this))
            }
        }
        unsafe {
            let f: Box_<F> = Box_::new(f);
            connect_raw(
                self.as_ptr() as *mut _,
                c"apply".as_ptr(),
                Some(std::mem::transmute::<*const (), unsafe extern "C" fn()>(
                    apply_trampoline::<F> as *const (),
                )),
                Box_::into_raw(f),
            )
        }
    }

    /// Emitted when then the cancel button is clicked.
    ///
    /// # Deprecated since 4.10
    ///
    /// This widget will be removed in GTK 5
    #[cfg_attr(feature = "v4_10", deprecated = "Since 4.10")]
    #[doc(alias = "cancel")]
    pub fn connect_cancel<F: Fn(&Self) + 'static>(&self, f: F) -> SignalHandlerId {
        unsafe extern "C" fn cancel_trampoline<F: Fn(&Assistant) + 'static>(
            this: *mut ffi::GtkAssistant,
            f: glib::ffi::gpointer,
        ) {
            unsafe {
                let f: &F = &*(f as *const F);
                f(&from_glib_borrow(this))
            }
        }
        unsafe {
            let f: Box_<F> = Box_::new(f);
            connect_raw(
                self.as_ptr() as *mut _,
                c"cancel".as_ptr(),
                Some(std::mem::transmute::<*const (), unsafe extern "C" fn()>(
                    cancel_trampoline::<F> as *const (),
                )),
                Box_::into_raw(f),
            )
        }
    }

    /// Emitted either when the close button of a summary page is clicked,
    /// or when the apply button in the last page in the flow (of type
    /// [`AssistantPageType::Confirm`][crate::AssistantPageType::Confirm]) is clicked.
    ///
    /// # Deprecated since 4.10
    ///
    /// This widget will be removed in GTK 5
    #[cfg_attr(feature = "v4_10", deprecated = "Since 4.10")]
    #[doc(alias = "close")]
    pub fn connect_close<F: Fn(&Self) + 'static>(&self, f: F) -> SignalHandlerId {
        unsafe extern "C" fn close_trampoline<F: Fn(&Assistant) + 'static>(
            this: *mut ffi::GtkAssistant,
            f: glib::ffi::gpointer,
        ) {
            unsafe {
                let f: &F = &*(f as *const F);
                f(&from_glib_borrow(this))
            }
        }
        unsafe {
            let f: Box_<F> = Box_::new(f);
            connect_raw(
                self.as_ptr() as *mut _,
                c"close".as_ptr(),
                Some(std::mem::transmute::<*const (), unsafe extern "C" fn()>(
                    close_trampoline::<F> as *const (),
                )),
                Box_::into_raw(f),
            )
        }
    }

    /// The action signal for the Escape binding.
    ///
    /// # Deprecated since 4.10
    ///
    /// This widget will be removed in GTK 5
    #[cfg_attr(feature = "v4_10", deprecated = "Since 4.10")]
    #[doc(alias = "escape")]
    pub fn connect_escape<F: Fn(&Self) + 'static>(&self, f: F) -> SignalHandlerId {
        unsafe extern "C" fn escape_trampoline<F: Fn(&Assistant) + 'static>(
            this: *mut ffi::GtkAssistant,
            f: glib::ffi::gpointer,
        ) {
            unsafe {
                let f: &F = &*(f as *const F);
                f(&from_glib_borrow(this))
            }
        }
        unsafe {
            let f: Box_<F> = Box_::new(f);
            connect_raw(
                self.as_ptr() as *mut _,
                c"escape".as_ptr(),
                Some(std::mem::transmute::<*const (), unsafe extern "C" fn()>(
                    escape_trampoline::<F> as *const (),
                )),
                Box_::into_raw(f),
            )
        }
    }

    #[cfg_attr(feature = "v4_10", deprecated = "Since 4.10")]
    pub fn emit_escape(&self) {
        self.emit_by_name::<()>("escape", &[]);
    }

    /// Emitted when a new page is set as the assistant's current page,
    /// before making the new page visible.
    ///
    /// A handler for this signal can do any preparations which are
    /// necessary before showing @page.
    ///
    /// # Deprecated since 4.10
    ///
    /// This widget will be removed in GTK 5
    /// ## `page`
    /// the current page
    #[cfg_attr(feature = "v4_10", deprecated = "Since 4.10")]
    #[doc(alias = "prepare")]
    pub fn connect_prepare<F: Fn(&Self, &Widget) + 'static>(&self, f: F) -> SignalHandlerId {
        unsafe extern "C" fn prepare_trampoline<F: Fn(&Assistant, &Widget) + 'static>(
            this: *mut ffi::GtkAssistant,
            page: *mut ffi::GtkWidget,
            f: glib::ffi::gpointer,
        ) {
            unsafe {
                let f: &F = &*(f as *const F);
                f(&from_glib_borrow(this), &from_glib_borrow(page))
            }
        }
        unsafe {
            let f: Box_<F> = Box_::new(f);
            connect_raw(
                self.as_ptr() as *mut _,
                c"prepare".as_ptr(),
                Some(std::mem::transmute::<*const (), unsafe extern "C" fn()>(
                    prepare_trampoline::<F> as *const (),
                )),
                Box_::into_raw(f),
            )
        }
    }

    #[doc(alias = "pages")]
    pub fn connect_pages_notify<F: Fn(&Self) + 'static>(&self, f: F) -> SignalHandlerId {
        unsafe extern "C" fn notify_pages_trampoline<F: Fn(&Assistant) + 'static>(
            this: *mut ffi::GtkAssistant,
            _param_spec: glib::ffi::gpointer,
            f: glib::ffi::gpointer,
        ) {
            unsafe {
                let f: &F = &*(f as *const F);
                f(&from_glib_borrow(this))
            }
        }
        unsafe {
            let f: Box_<F> = Box_::new(f);
            connect_raw(
                self.as_ptr() as *mut _,
                c"notify::pages".as_ptr(),
                Some(std::mem::transmute::<*const (), unsafe extern "C" fn()>(
                    notify_pages_trampoline::<F> as *const (),
                )),
                Box_::into_raw(f),
            )
        }
    }
}

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

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

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

    /// [`true`] if the assistant uses a [`HeaderBar`][crate::HeaderBar] for action buttons
    /// instead of the action-area.
    ///
    /// For technical reasons, this property is declared as an integer
    /// property, but you should only set it to [`true`] or [`false`].
    /// This widget will be removed in GTK 5
    #[cfg_attr(feature = "v4_10", deprecated = "Since 4.10")]
    pub fn use_header_bar(self, use_header_bar: i32) -> Self {
        Self {
            builder: self.builder.property("use-header-bar", use_header_bar),
        }
    }

    /// The [`Application`][crate::Application] associated with the window.
    ///
    /// The application will be kept alive for at least as long as it
    /// has any windows associated with it (see g_application_hold()
    /// for a way to keep it alive without windows).
    ///
    /// Normally, the connection between the application and the window
    /// will remain until the window is destroyed, but you can explicitly
    /// remove it by setting the this property to `NULL`.
    pub fn application(self, application: &impl IsA<Application>) -> Self {
        Self {
            builder: self
                .builder
                .property("application", application.clone().upcast()),
        }
    }

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

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

    /// The default height of the window.
    pub fn default_height(self, default_height: i32) -> Self {
        Self {
            builder: self.builder.property("default-height", default_height),
        }
    }

    /// The default widget.
    pub fn default_widget(self, default_widget: &impl IsA<Widget>) -> Self {
        Self {
            builder: self
                .builder
                .property("default-widget", default_widget.clone().upcast()),
        }
    }

    /// The default width of the window.
    pub fn default_width(self, default_width: i32) -> Self {
        Self {
            builder: self.builder.property("default-width", default_width),
        }
    }

    /// Whether the window frame should have a close button.
    pub fn deletable(self, deletable: bool) -> Self {
        Self {
            builder: self.builder.property("deletable", deletable),
        }
    }

    /// If this window should be destroyed when the parent is destroyed.
    pub fn destroy_with_parent(self, destroy_with_parent: bool) -> Self {
        Self {
            builder: self
                .builder
                .property("destroy-with-parent", destroy_with_parent),
        }
    }

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

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

    /// The focus widget.
    pub fn focus_widget(self, focus_widget: &impl IsA<Widget>) -> Self {
        Self {
            builder: self
                .builder
                .property("focus-widget", focus_widget.clone().upcast()),
        }
    }

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

    /// The gravity to use when resizing the window programmatically.
    ///
    /// Gravity describes which point of the window we want to keep
    /// fixed (meaning that the window will grow in the opposite direction).
    /// For example, a gravity of `GTK_WINDOW_GRAVITY_TOP_RIGHT` means that we
    /// want the to fix top right corner of the window.
    #[cfg(feature = "v4_20")]
    #[cfg_attr(docsrs, doc(cfg(feature = "v4_20")))]
    pub fn gravity(self, gravity: WindowGravity) -> Self {
        Self {
            builder: self.builder.property("gravity", gravity),
        }
    }

    /// Whether the window frame should handle <kbd>F10</kbd> for activating
    /// menubars.
    #[cfg(feature = "v4_2")]
    #[cfg_attr(docsrs, doc(cfg(feature = "v4_2")))]
    pub fn handle_menubar_accel(self, handle_menubar_accel: bool) -> Self {
        Self {
            builder: self
                .builder
                .property("handle-menubar-accel", handle_menubar_accel),
        }
    }

    /// If this window should be hidden instead of destroyed when the user clicks
    /// the close button.
    pub fn hide_on_close(self, hide_on_close: bool) -> Self {
        Self {
            builder: self.builder.property("hide-on-close", hide_on_close),
        }
    }

    /// Specifies the name of the themed icon to use as the window icon.
    ///
    /// See [`IconTheme`][crate::IconTheme] for more details.
    pub fn icon_name(self, icon_name: impl Into<glib::GString>) -> Self {
        Self {
            builder: self.builder.property("icon-name", icon_name.into()),
        }
    }

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

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

    /// If true, the window is modal.
    pub fn modal(self, modal: bool) -> Self {
        Self {
            builder: self.builder.property("modal", modal),
        }
    }

    /// If true, users can resize the window.
    pub fn resizable(self, resizable: bool) -> Self {
        Self {
            builder: self.builder.property("resizable", resizable),
        }
    }

    /// A write-only property for setting window's startup notification identifier.
    pub fn startup_id(self, startup_id: impl Into<glib::GString>) -> Self {
        Self {
            builder: self.builder.property("startup-id", startup_id.into()),
        }
    }

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

    /// The titlebar widget.
    #[cfg(feature = "v4_6")]
    #[cfg_attr(docsrs, doc(cfg(feature = "v4_6")))]
    pub fn titlebar(self, titlebar: &impl IsA<Widget>) -> Self {
        Self {
            builder: self.builder.property("titlebar", titlebar.clone().upcast()),
        }
    }

    /// The transient parent of the window.
    pub fn transient_for(self, transient_for: &impl IsA<Window>) -> Self {
        Self {
            builder: self
                .builder
                .property("transient-for", transient_for.clone().upcast()),
        }
    }

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

    /// Whether the widget can receive pointer events.
    pub fn can_target(self, can_target: bool) -> Self {
        Self {
            builder: self.builder.property("can-target", can_target),
        }
    }

    /// A list of css classes applied to this widget.
    pub fn css_classes(self, css_classes: impl Into<glib::StrV>) -> Self {
        Self {
            builder: self.builder.property("css-classes", css_classes.into()),
        }
    }

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

    /// The cursor used by @widget.
    pub fn cursor(self, cursor: &gdk::Cursor) -> Self {
        Self {
            builder: self.builder.property("cursor", cursor.clone()),
        }
    }

    /// 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(self, focus_on_click: bool) -> Self {
        Self {
            builder: self.builder.property("focus-on-click", focus_on_click),
        }
    }

    /// Whether this widget itself will accept the input focus.
    pub fn focusable(self, focusable: bool) -> Self {
        Self {
            builder: self.builder.property("focusable", focusable),
        }
    }

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

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

    /// Overrides for height request of the widget.
    ///
    /// If this is -1, the natural request will be used.
    pub fn height_request(self, height_request: i32) -> Self {
        Self {
            builder: self.builder.property("height-request", height_request),
        }
    }

    /// Whether to expand horizontally.
    pub fn hexpand(self, hexpand: bool) -> Self {
        Self {
            builder: self.builder.property("hexpand", hexpand),
        }
    }

    /// Whether to use the `hexpand` property.
    pub fn hexpand_set(self, hexpand_set: bool) -> Self {
        Self {
            builder: self.builder.property("hexpand-set", hexpand_set),
        }
    }

    /// 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(self, layout_manager: &impl IsA<LayoutManager>) -> Self {
        Self {
            builder: self
                .builder
                .property("layout-manager", layout_manager.clone().upcast()),
        }
    }

    /// Makes this widget act like a modal dialog, with respect to
    /// event delivery.
    ///
    /// Global event controllers will not handle events with targets
    /// inside the widget, unless they are set up to ignore propagation
    /// limits. See [`EventControllerExt::set_propagation_limit()`][crate::prelude::EventControllerExt::set_propagation_limit()].
    #[cfg(feature = "v4_18")]
    #[cfg_attr(docsrs, doc(cfg(feature = "v4_18")))]
    pub fn limit_events(self, limit_events: bool) -> Self {
        Self {
            builder: self.builder.property("limit-events", limit_events),
        }
    }

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

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

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

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

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

    /// The requested opacity of the widget.
    pub fn opacity(self, opacity: f64) -> Self {
        Self {
            builder: self.builder.property("opacity", opacity),
        }
    }

    /// 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(self, overflow: Overflow) -> Self {
        Self {
            builder: self.builder.property("overflow", overflow),
        }
    }

    /// Whether the widget will receive the default action when it is focused.
    pub fn receives_default(self, receives_default: bool) -> Self {
        Self {
            builder: self.builder.property("receives-default", receives_default),
        }
    }

    /// Whether the widget responds to input.
    pub fn sensitive(self, sensitive: bool) -> Self {
        Self {
            builder: self.builder.property("sensitive", sensitive),
        }
    }

    /// Sets the text of tooltip to be the given string, which is marked up
    /// with 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 `NULL`:
    /// [`has-tooltip`][struct@crate::Widget#has-tooltip] will automatically be set to true
    /// and there will be taken care of [`query-tooltip`][struct@crate::Widget#query-tooltip] in
    /// the default signal handler.
    ///
    /// Note that if both [`tooltip-text`][struct@crate::Widget#tooltip-text] and
    /// [`tooltip-markup`][struct@crate::Widget#tooltip-markup] are set, the last one wins.
    pub fn tooltip_markup(self, tooltip_markup: impl Into<glib::GString>) -> Self {
        Self {
            builder: self
                .builder
                .property("tooltip-markup", tooltip_markup.into()),
        }
    }

    /// Sets the text of tooltip to be the given string.
    ///
    /// Also see [`Tooltip::set_text()`][crate::Tooltip::set_text()].
    ///
    /// This is a convenience property which will take care of getting the
    /// tooltip shown if the given string is not `NULL`:
    /// [`has-tooltip`][struct@crate::Widget#has-tooltip] will automatically be set to true
    /// and there will be taken care of [`query-tooltip`][struct@crate::Widget#query-tooltip] in
    /// the default signal handler.
    ///
    /// Note that if both [`tooltip-text`][struct@crate::Widget#tooltip-text] and
    /// [`tooltip-markup`][struct@crate::Widget#tooltip-markup] are set, the last one wins.
    pub fn tooltip_text(self, tooltip_text: impl Into<glib::GString>) -> Self {
        Self {
            builder: self.builder.property("tooltip-text", tooltip_text.into()),
        }
    }

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

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

    /// Whether to use the `vexpand` property.
    pub fn vexpand_set(self, vexpand_set: bool) -> Self {
        Self {
            builder: self.builder.property("vexpand-set", vexpand_set),
        }
    }

    /// Whether the widget is visible.
    pub fn visible(self, visible: bool) -> Self {
        Self {
            builder: self.builder.property("visible", visible),
        }
    }

    /// Overrides for width request of the widget.
    ///
    /// If this is -1, the natural request will be used.
    pub fn width_request(self, width_request: i32) -> Self {
        Self {
            builder: self.builder.property("width-request", width_request),
        }
    }

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

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