1mod align;
 2mod constrained_box;
 3mod container;
 4mod empty;
 5mod event_handler;
 6mod flex;
 7mod label;
 8mod line_box;
 9mod new;
10mod stack;
11mod svg;
12mod uniform_list;
13
14pub use crate::presenter::ChildView;
15pub use align::*;
16pub use constrained_box::*;
17pub use container::*;
18pub use empty::*;
19pub use event_handler::*;
20pub use flex::*;
21pub use label::*;
22pub use line_box::*;
23pub use new::*;
24pub use stack::*;
25pub use svg::*;
26pub use uniform_list::*;
27
28use crate::{
29    AfterLayoutContext, AppContext, Event, EventContext, LayoutContext, PaintContext,
30    SizeConstraint,
31};
32
33pub trait ParentElement<'a>: Extend<ElementBox> + Sized {
34    fn add_children(&mut self, children: impl IntoIterator<Item = ElementBox>) {
35        self.extend(children);
36    }
37
38    fn add_child(&mut self, child: ElementBox) {
39        self.add_children(Some(child));
40    }
41
42    fn with_children(mut self, children: impl IntoIterator<Item = ElementBox>) -> Self {
43        self.add_children(children);
44        self
45    }
46
47    fn with_child(self, child: ElementBox) -> Self {
48        self.with_children(Some(child))
49    }
50}
51
52impl<'a, T> ParentElement<'a> for T where T: Extend<ElementBox> {}