74 lines
1.6 KiB
Rust
74 lines
1.6 KiB
Rust
use dodrio::bumpalo;
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use futures::Future;
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use std::cell::RefCell;
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mod bus;
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mod element;
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pub mod widget;
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pub use bus::Bus;
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pub use element::Element;
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pub use iced_core::{Align, Color, Justify, Length};
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pub use widget::*;
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pub trait UserInterface {
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type Message;
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fn update(
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&mut self,
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message: Self::Message,
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) -> Option<Box<dyn Future<Output = Self::Message>>>;
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fn view(&mut self) -> Element<Self::Message>;
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fn run(self)
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where
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Self: 'static + Sized,
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{
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let window = web_sys::window().unwrap();
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let document = window.document().unwrap();
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let body = document.body().unwrap();
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let app = Application::new(self);
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let vdom = dodrio::Vdom::new(&body, app);
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vdom.forget();
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}
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}
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struct Application<Message> {
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ui: RefCell<Box<dyn UserInterface<Message = Message>>>,
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}
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impl<Message> Application<Message> {
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fn new(ui: impl UserInterface<Message = Message> + 'static) -> Self {
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Self {
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ui: RefCell::new(Box::new(ui)),
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}
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}
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fn update(&mut self, message: Message) {
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let mut ui = self.ui.borrow_mut();
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// TODO: Resolve futures and publish resulting messages
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let _ = ui.update(message);
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}
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}
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impl<Message> dodrio::Render for Application<Message>
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where
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Message: 'static,
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{
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fn render<'a, 'bump>(
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&'a self,
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bump: &'bump bumpalo::Bump,
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) -> dodrio::Node<'bump>
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where
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'a: 'bump,
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{
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let mut ui = self.ui.borrow_mut();
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let element = ui.view();
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element.widget.node(bump, &Bus::new())
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}
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}
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