e87bc3db20
* Add the plumbing for handling browser closes * Implement the business logic for handling closes
33 lines
879 B
Rust
33 lines
879 B
Rust
mod canvas;
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mod event;
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mod timeout;
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pub use self::canvas::Canvas;
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pub use self::timeout::Timeout;
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use crate::platform::web::WindowExtWebSys;
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use crate::window::Window;
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use wasm_bindgen::{closure::Closure, JsCast};
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use web_sys::{BeforeUnloadEvent, HtmlCanvasElement};
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pub fn throw(msg: &str) {
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wasm_bindgen::throw_str(msg);
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}
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pub fn on_unload(mut handler: impl FnMut() + 'static) {
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let window = web_sys::window().expect("Failed to obtain window");
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let closure = Closure::wrap(
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Box::new(move |_: BeforeUnloadEvent| handler()) as Box<dyn FnMut(BeforeUnloadEvent)>
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);
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window
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.add_event_listener_with_callback("beforeunload", &closure.as_ref().unchecked_ref())
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.expect("Failed to add close listener");
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}
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impl WindowExtWebSys for Window {
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fn canvas(&self) -> HtmlCanvasElement {
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self.window.canvas().raw().clone()
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}
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}
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