use cascade::cascade;
use gtk4::{
    glib,
    prelude::*,
    subclass::prelude::*,
};

use crate::deref_cell::DerefCell;

#[derive(Default)]
pub struct StatusAreaInner {
    box_: DerefCell<gtk4::Box>,
}

#[glib::object_subclass]
impl ObjectSubclass for StatusAreaInner {
    const NAME: &'static str = "S76StatusArea";
    type ParentType = gtk4::Widget;
    type Type = StatusArea;

    fn class_init(klass: &mut Self::Class) {
        klass.set_layout_manager_type::<gtk4::BinLayout>();
    }
}

impl ObjectImpl for StatusAreaInner {
    fn constructed(&self, obj: &StatusArea) {
        let box_ = cascade! {
            gtk4::Box::new(gtk4::Orientation::Horizontal, 0);
            ..set_parent(obj);
        };

        self.box_.set(box_);
    }

    fn dispose(&self, _obj: &StatusArea) {
        self.box_.unparent();
    }
}

impl WidgetImpl for StatusAreaInner {}

glib::wrapper! {
    pub struct StatusArea(ObjectSubclass<StatusAreaInner>)
        @extends gtk4::Widget;
}

impl StatusArea {
    pub fn new() -> Self {
        glib::Object::new(&[]).unwrap()
    }

    fn inner(&self) -> &StatusAreaInner {
        StatusAreaInner::from_instance(self)
    }
}