use crate::layout::{Widget, WidgetLike, WidgetRef};
use std::marker::Unsize;

pub trait WidgetView {
    type Widget: Widget + ?Sized + Unsize<dyn Widget> = dyn Widget;
    fn view(&self) -> &WidgetRef<Self::Widget>;
}

pub struct ViewTag;

impl<WV: WidgetView> WidgetLike<ViewTag> for WV {
    type Widget = WV::Widget;

    fn add(self, _ui: &mut super::Ui) -> WidgetRef<Self::Widget> {
        self.view().clone()
    }
}