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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)
// DO NOT EDIT

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

glib::wrapper! {
    /// [`MultiSelection`][crate::MultiSelection] is a [`SelectionModel`][crate::SelectionModel] that allows selecting multiple
    /// elements.
    ///
    /// ## Properties
    ///
    ///
    /// #### `item-type`
    ///  The type of items. See [`ListModelExtManual::item_type()`][crate::gio::prelude::ListModelExtManual::item_type()].
    ///
    /// Readable
    ///
    ///
    /// #### `model`
    ///  The list managed by this selection.
    ///
    /// Readable | Writeable
    ///
    ///
    /// #### `n-items`
    ///  The number of items. See [`ListModelExtManual::n_items()`][crate::gio::prelude::ListModelExtManual::n_items()].
    ///
    /// Readable
    ///
    /// # Implements
    ///
    /// [`trait@glib::ObjectExt`], [`trait@gio::prelude::ListModelExt`], [`SelectionModelExt`][trait@crate::prelude::SelectionModelExt]
    #[doc(alias = "GtkMultiSelection")]
    pub struct MultiSelection(Object<ffi::GtkMultiSelection, ffi::GtkMultiSelectionClass>) @implements gio::ListModel, SelectionModel;

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

impl MultiSelection {
    /// Creates a new selection to handle @model.
    /// ## `model`
    /// the `GListModel` to manage
    ///
    /// # Returns
    ///
    /// a new [`MultiSelection`][crate::MultiSelection]
    #[doc(alias = "gtk_multi_selection_new")]
    pub fn new(model: Option<impl IsA<gio::ListModel>>) -> MultiSelection {
        assert_initialized_main_thread!();
        unsafe {
            from_glib_full(ffi::gtk_multi_selection_new(
                model.map(|p| p.upcast()).into_glib_ptr(),
            ))
        }
    }

    /// Returns the underlying model of @self.
    ///
    /// # Returns
    ///
    /// the underlying model
    #[doc(alias = "gtk_multi_selection_get_model")]
    #[doc(alias = "get_model")]
    pub fn model(&self) -> Option<gio::ListModel> {
        unsafe { from_glib_none(ffi::gtk_multi_selection_get_model(self.to_glib_none().0)) }
    }

    /// Sets the model that @self should wrap.
    ///
    /// If @model is [`None`], @self will be empty.
    /// ## `model`
    /// A `GListModel` to wrap
    #[doc(alias = "gtk_multi_selection_set_model")]
    pub fn set_model(&self, model: Option<&impl IsA<gio::ListModel>>) {
        unsafe {
            ffi::gtk_multi_selection_set_model(
                self.to_glib_none().0,
                model.map(|p| p.as_ref()).to_glib_none().0,
            );
        }
    }

    #[doc(alias = "model")]
    pub fn connect_model_notify<F: Fn(&Self) + 'static>(&self, f: F) -> SignalHandlerId {
        unsafe extern "C" fn notify_model_trampoline<F: Fn(&MultiSelection) + 'static>(
            this: *mut ffi::GtkMultiSelection,
            _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::model\0".as_ptr() as *const _,
                Some(transmute::<_, unsafe extern "C" fn()>(
                    notify_model_trampoline::<F> as *const (),
                )),
                Box_::into_raw(f),
            )
        }
    }
}

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