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

use crate::ComboBox;
use glib::object::IsA;
use glib::translate::*;

mod sealed {
    pub trait Sealed {}
    impl<T: glib::IsA<crate::ComboBox>> Sealed for T {}
}

pub trait ComboBoxExtManual: IsA<ComboBox> + sealed::Sealed + 'static {
    #[doc(alias = "gtk_combo_box_set_active")]
    fn set_active(&self, index_: Option<u32>) {
        let index_ = match index_ {
            Some(i) => i as _,
            None => -1,
        };
        unsafe {
            ffi::gtk_combo_box_set_active(self.as_ref().to_glib_none().0, index_);
        }
    }

    #[doc(alias = "gtk_combo_box_get_active")]
    #[doc(alias = "get_active")]
    fn active(&self) -> Option<u32> {
        match unsafe { ffi::gtk_combo_box_get_active(self.as_ref().to_glib_none().0) } {
            -1 => None,
            x => Some(x as _),
        }
    }
}

impl<O: IsA<ComboBox>> ComboBoxExtManual for O {}