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

use crate::ViewStackPage;
use glib::{
    prelude::*,
    signal::{connect_raw, SignalHandlerId},
    translate::*,
};
use std::boxed::Box as Box_;

glib::wrapper! {
    /// An auxiliary class used by [`ViewStack`][crate::ViewStack].
    ///
    /// See [`pages`][struct@crate::ViewStack#pages].
    ///
    /// ## Properties
    ///
    ///
    /// #### `selected-page`
    ///  The selected [`ViewStackPage`][crate::ViewStackPage] within the [`ViewStackPages`][crate::ViewStackPages].
    ///
    /// This can be used to keep an up-to-date view of the [`ViewStackPage`][crate::ViewStackPage] for
    /// The visible [`ViewStackPage`][crate::ViewStackPage] within the associated [`ViewStackPages`][crate::ViewStackPages].
    ///
    /// This can be used to keep an up-to-date view of the visible child.
    ///
    /// Readable | Writeable
    ///
    /// # Implements
    ///
    /// [`trait@glib::ObjectExt`], [`trait@gio::prelude::ListModelExt`], [`trait@gtk::prelude::SelectionModelExt`]
    #[doc(alias = "AdwViewStackPages")]
    pub struct ViewStackPages(Object<ffi::AdwViewStackPages, ffi::AdwViewStackPagesClass>) @implements gio::ListModel, gtk::SelectionModel;

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

impl ViewStackPages {
    /// Gets the [`ViewStackPage`][crate::ViewStackPage] for the visible child of a view stack
    ///
    /// Gets the [`ViewStackPage`][crate::ViewStackPage] for the visible child of the associated stack.
    ///
    /// Returns `NULL` if there's no selected page.
    ///
    /// # Returns
    ///
    /// the stack page
    #[doc(alias = "adw_view_stack_pages_get_selected_page")]
    #[doc(alias = "get_selected_page")]
    pub fn selected_page(&self) -> Option<ViewStackPage> {
        unsafe {
            from_glib_none(ffi::adw_view_stack_pages_get_selected_page(
                self.to_glib_none().0,
            ))
        }
    }

    /// Sets the visible child in the associated [`ViewStack`][crate::ViewStack].
    ///
    /// See [`visible-child`][struct@crate::ViewStack#visible-child].
    /// ## `page`
    /// a stack page within the associated stack
    #[doc(alias = "adw_view_stack_pages_set_selected_page")]
    pub fn set_selected_page(&self, page: &ViewStackPage) {
        unsafe {
            ffi::adw_view_stack_pages_set_selected_page(
                self.to_glib_none().0,
                page.to_glib_none().0,
            );
        }
    }

    #[cfg(feature = "v1_4")]
    #[cfg_attr(docsrs, doc(cfg(feature = "v1_4")))]
    #[doc(alias = "selected-page")]
    pub fn connect_selected_page_notify<F: Fn(&Self) + 'static>(&self, f: F) -> SignalHandlerId {
        unsafe extern "C" fn notify_selected_page_trampoline<F: Fn(&ViewStackPages) + 'static>(
            this: *mut ffi::AdwViewStackPages,
            _param_spec: glib::ffi::gpointer,
            f: glib::ffi::gpointer,
        ) {
            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 _,
                b"notify::selected-page\0".as_ptr() as *const _,
                Some(std::mem::transmute::<_, unsafe extern "C" fn()>(
                    notify_selected_page_trampoline::<F> as *const (),
                )),
                Box_::into_raw(f),
            )
        }
    }
}