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// Take a look at the license at the top of the repository in the LICENSE file.

use crate::FileChooser;
use glib::translate::*;
use glib::IsA;

// rustdoc-stripper-ignore-next
/// Trait containing manually implemented methods of [`FileChooser`](crate::FileChooser).
pub trait FileChooserExtManual: 'static {
    /// Adds a 'choice' to the file chooser.
    ///
    /// This is typically implemented as a combobox or, for boolean choices,
    /// as a checkbutton. You can select a value using
    /// [`FileChooserExt::set_choice()`][crate::prelude::FileChooserExt::set_choice()] before the dialog is shown,
    /// and you can obtain the user-selected value in the
    /// `signal::Dialog::response` signal handler using
    /// [`FileChooserExt::choice()`][crate::prelude::FileChooserExt::choice()].
    /// ## `id`
    /// id for the added choice
    /// ## `label`
    /// user-visible label for the added choice
    /// ## `options`
    /// ids for the options of the choice, or [`None`] for a boolean choice
    /// ## `option_labels`
    /// user-visible labels for the options, must be the same length as @options
    #[doc(alias = "gtk_file_chooser_add_choice")]
    fn add_choice(&self, id: &str, label: &str, options: &[(&str, &str)]);
}

impl<O: IsA<FileChooser>> FileChooserExtManual for O {
    fn add_choice(&self, id: &str, label: &str, options: &[(&str, &str)]) {
        unsafe {
            let stashes_ids = options
                .iter()
                .map(|o| o.0.to_glib_none())
                .collect::<Vec<_>>();
            let stashes_labels = options
                .iter()
                .map(|o| o.1.to_glib_none())
                .collect::<Vec<_>>();
            let (options_ids, options_labels) = (
                stashes_ids
                    .iter()
                    .map(|o| o.0)
                    .collect::<Vec<*const libc::c_char>>()
                    .as_ptr(),
                stashes_labels
                    .iter()
                    .map(|o| o.0)
                    .collect::<Vec<*const libc::c_char>>()
                    .as_ptr(),
            );

            ffi::gtk_file_chooser_add_choice(
                self.as_ref().to_glib_none().0,
                id.to_glib_none().0,
                label.to_glib_none().0,
                mut_override(options_ids),
                mut_override(options_labels),
            );
        }
    }
}