winit-sonoma-fix/examples/web.rs
Héctor Ramón 133b11fa6d Implement revamped RedrawRequested on Web (#1301)
* Implement revamped `RedrawRequested` on Web

* Add `web` example
2019-12-22 11:17:23 -05:00

73 lines
1.8 KiB
Rust

use winit::{
event::{Event, WindowEvent},
event_loop::{ControlFlow, EventLoop},
window::WindowBuilder,
};
pub fn main() {
let event_loop = EventLoop::new();
let window = WindowBuilder::new()
.with_title("A fantastic window!")
.build(&event_loop)
.unwrap();
#[cfg(feature = "web-sys")]
{
use winit::platform::web::WindowExtWebSys;
let canvas = window.canvas();
let window = web_sys::window().unwrap();
let document = window.document().unwrap();
let body = document.body().unwrap();
body.append_child(&canvas)
.expect("Append canvas to HTML body");
}
#[cfg(feature = "stdweb")]
{
use std_web::web::INode;
use winit::platform::web::WindowExtStdweb;
let canvas = window.canvas();
let document = std_web::web::document();
let body: std_web::web::Node = document.body().expect("Get HTML body").into();
body.append_child(&canvas);
}
event_loop.run(move |event, _, control_flow| {
#[cfg(feature = "web-sys")]
log::debug!("{:?}", event);
#[cfg(feature = "stdweb")]
std_web::console!(log, "%s", format!("{:?}", event));
match event {
Event::WindowEvent {
event: WindowEvent::CloseRequested,
window_id,
} if window_id == window.id() => *control_flow = ControlFlow::Exit,
Event::MainEventsCleared => {
window.request_redraw();
}
_ => *control_flow = ControlFlow::Wait,
}
});
}
#[cfg(feature = "web-sys")]
mod wasm {
use wasm_bindgen::prelude::*;
#[wasm_bindgen(start)]
pub fn run() {
console_log::init_with_level(log::Level::Debug);
super::main();
}
}