Implement View for Box<View>

This commit is contained in:
Alexandre Bury 2017-09-23 13:53:26 -07:00
parent ba5963a4f0
commit 1a4e1c104e

View File

@ -148,6 +148,42 @@ pub trait View {
}
}
use std::ops::{Deref, DerefMut};
impl View for Box<View> {
fn draw(&self, printer: &Printer) {
self.deref().draw(printer)
}
fn required_size(&mut self, req: Vec2) -> Vec2 {
self.deref_mut().required_size(req)
}
fn on_event(&mut self, ch: Event) -> EventResult {
self.deref_mut().on_event(ch)
}
fn layout(&mut self, size: Vec2) {
self.deref_mut().layout(size);
}
fn take_focus(&mut self, source: Direction) -> bool {
self.deref_mut().take_focus(source)
}
fn call_on_any<'a>(&mut self, selector: &Selector,
callback: Box<FnMut(&mut Any) + 'a>) {
self.deref_mut().call_on_any(selector, callback)
}
fn needs_relayout(&self) -> bool {
self.deref().needs_relayout()
}
fn focus_view(&mut self, selector: &Selector) -> Result<(), ()> {
self.deref_mut().focus_view(selector)
}
}
/// Provides `call_on<V: View>` to views.
///
/// This trait is mostly a wrapper around [`View::call_on_any`].