winit-sonoma-fix/examples/web.rs
Kirill Chibisov ed26dd58fd
Propagate error from EventLoop creation
Inner panics could make it hard to trouble shoot the issues and for some
users ints not desirable.

The inner panics were left only when they are used to `assert!` during
development.
2023-08-06 06:03:54 +04:00

143 lines
4.8 KiB
Rust

#![allow(clippy::disallowed_methods, clippy::single_match)]
use winit::{
event::{ElementState, Event, KeyEvent, WindowEvent},
event_loop::EventLoop,
keyboard::KeyCode,
window::{Fullscreen, WindowBuilder},
};
pub fn main() -> Result<(), impl std::error::Error> {
let event_loop = EventLoop::new().unwrap();
let builder = WindowBuilder::new().with_title("A fantastic window!");
#[cfg(wasm_platform)]
let builder = {
use winit::platform::web::WindowBuilderExtWebSys;
builder.with_append(true)
};
let window = builder.build(&event_loop).unwrap();
#[cfg(wasm_platform)]
let log_list = wasm::insert_canvas_and_create_log_list(&window);
event_loop.run(move |event, _, control_flow| {
control_flow.set_wait();
#[cfg(wasm_platform)]
wasm::log_event(&log_list, &event);
match event {
Event::WindowEvent {
event: WindowEvent::CloseRequested,
window_id,
} if window_id == window.id() => control_flow.set_exit(),
Event::AboutToWait => {
window.request_redraw();
}
Event::WindowEvent {
window_id,
event:
WindowEvent::KeyboardInput {
event:
KeyEvent {
physical_key: KeyCode::KeyF,
state: ElementState::Released,
..
},
..
},
} if window_id == window.id() => {
if window.fullscreen().is_some() {
window.set_fullscreen(None);
} else {
window.set_fullscreen(Some(Fullscreen::Borderless(None)));
}
}
_ => (),
}
})
}
#[cfg(wasm_platform)]
mod wasm {
use std::num::NonZeroU32;
use softbuffer::{Surface, SurfaceExtWeb};
use wasm_bindgen::prelude::*;
use winit::{event::Event, window::Window};
#[wasm_bindgen(start)]
pub fn run() {
console_log::init_with_level(log::Level::Debug).expect("error initializing logger");
#[allow(clippy::main_recursion)]
let _ = super::main();
}
pub fn insert_canvas_and_create_log_list(window: &Window) -> web_sys::Element {
use winit::platform::web::WindowExtWebSys;
let canvas = window.canvas().unwrap();
let mut surface = Surface::from_canvas(canvas.clone()).unwrap();
surface
.resize(
NonZeroU32::new(canvas.width()).unwrap(),
NonZeroU32::new(canvas.height()).unwrap(),
)
.unwrap();
let mut buffer = surface.buffer_mut().unwrap();
buffer.fill(0xFFF0000);
buffer.present().unwrap();
let window = web_sys::window().unwrap();
let document = window.document().unwrap();
let body = document.body().unwrap();
let style = &canvas.style();
style.set_property("margin", "50px").unwrap();
// Use to test interactions with border and padding.
//style.set_property("border", "50px solid black").unwrap();
//style.set_property("padding", "50px").unwrap();
let log_header = document.create_element("h2").unwrap();
log_header.set_text_content(Some("Event Log"));
body.append_child(&log_header).unwrap();
let log_list = document.create_element("ul").unwrap();
body.append_child(&log_list).unwrap();
log_list
}
pub fn log_event(log_list: &web_sys::Element, event: &Event<()>) {
log::debug!("{:?}", event);
// Getting access to browser logs requires a lot of setup on mobile devices.
// So we implement this basic logging system into the page to give developers an easy alternative.
// As a bonus its also kind of handy on desktop.
let event = match event {
Event::WindowEvent { event, .. } => Some(format!("{event:?}")),
Event::Resumed | Event::Suspended => Some(format!("{event:?}")),
_ => None,
};
if let Some(event) = event {
let window = web_sys::window().unwrap();
let document = window.document().unwrap();
let log = document.create_element("li").unwrap();
let date = js_sys::Date::new_0();
log.set_text_content(Some(&format!(
"{:02}:{:02}:{:02}.{:03}: {event}",
date.get_hours(),
date.get_minutes(),
date.get_seconds(),
date.get_milliseconds(),
)));
log_list
.insert_before(&log, log_list.first_child().as_ref())
.unwrap();
}
}
}