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Make canvas in WindowBuilder safe (#3320)

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daxpedda 2023-12-26 01:22:10 +01:00 • committed by GitHub
parent 843d7904d6
commit e0fea25b06
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10 changed files with 214 additions and 169 deletions
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4
src/platform_impl/web/async/dispatcher.rs
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@ -1,3 +1,4 @@
use super::super::main_thread::MainThreadMarker;
use super::{channel, AsyncReceiver, AsyncSender, Wrapper};
use std::{
cell::Ref,
@ -10,10 +11,11 @@ struct Closure<T>(Box<dyn FnOnce(&T) + Send>);
impl<T> Dispatcher<T> {
#[track_caller]
pub fn new(value: T) -> Option<(Self, DispatchRunner<T>)> {
pub fn new(main_thread: MainThreadMarker, value: T) -> Option<(Self, DispatchRunner<T>)> {
let (sender, receiver) = channel::<Closure<T>>();
Wrapper::new(
main_thread,
value,
|value, Closure(closure)| {
// SAFETY: The given `Closure` here isn't really `'static`, so we shouldn't do anything