leyoda/winit
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity Actions

Send a LoopDestroyed event when the browser is closed (#1155)

Browse source 
* Add the plumbing for handling browser closes

* Implement the business logic for handling closes
This commit is contained in:
Ryan G 2019-09-11 11:47:03 -04:00 • committed by GitHub
parent 7ee9d5639b
commit e87bc3db20
No known key found for this signature in database
GPG key ID: 4AEE18F83AFDEB23
4 changed files with 31 additions and 1 deletions
Download patch file Download diff file Expand all files Collapse all files

15
src/platform_impl/web/web_sys/mod.rs
View file

@ -7,12 +7,25 @@ pub use self::timeout::Timeout;
use crate::platform::web::WindowExtWebSys;
use crate::window::Window;
use web_sys::HtmlCanvasElement;
use wasm_bindgen::{closure::Closure, JsCast};
use web_sys::{BeforeUnloadEvent, HtmlCanvasElement};
pub fn throw(msg: &str) {
wasm_bindgen::throw_str(msg);
}
pub fn on_unload(mut handler: impl FnMut() + 'static) {
let window = web_sys::window().expect("Failed to obtain window");
let closure = Closure::wrap(
Box::new(move |_: BeforeUnloadEvent| handler()) as Box<dyn FnMut(BeforeUnloadEvent)>
);
window
.add_event_listener_with_callback("beforeunload", &closure.as_ref().unchecked_ref())
.expect("Failed to add close listener");
}
impl WindowExtWebSys for Window {
fn canvas(&self) -> HtmlCanvasElement {
self.window.canvas().raw().clone()