24 lines
773 B
Rust
24 lines
773 B
Rust
use wasm_bindgen::prelude::*;
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use web_sys::window;
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/// set the console error panic hook if the respecive feature is enabled
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pub fn set_panic_hook() {
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#[cfg(feature = "console_error_panic_hook")]
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console_error_panic_hook::set_once();
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}
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/// display an alert with an error message passed as a JsValue.
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pub fn alert_err(msg: JsValue) {
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let mut s = String::from("ERROR! --- ");
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s.push_str(&msg.as_string().unwrap_or_else(|| String::from("unknown")));
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window().unwrap().alert_with_message(&s).unwrap();
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}
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/// helper function for using javascript's `window.requestAnimationFrame()`
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pub fn request_animation_frame(f: &Closure<dyn FnMut(f32)>) {
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window()
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.unwrap()
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.request_animation_frame(f.as_ref().unchecked_ref())
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.unwrap();
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}
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