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Don't allow event loops to run in parallel

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dAxpeDDa 2023-06-25 12:03:22 +02:00 • committed by daxpedda
parent 924f3323b5
commit b0106898f7
3 changed files with 19 additions and 11 deletions
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9
src/platform_impl/web/event_loop/runner.rs
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@ -35,6 +35,7 @@ type OnEventHandle<T> = RefCell<Option<EventListenerHandle<dyn FnMut(T)>>>;
pub struct Execution<T: 'static> {
runner: RefCell<RunnerEnum<T>>,
event_loop_recreation: Cell<bool>,
events: RefCell<VecDeque<EventWrapper<T>>>,
id: RefCell<u32>,
window: web_sys::Window,
@ -139,6 +140,7 @@ impl<T: 'static> Shared<T> {
pub fn new() -> Self {
Shared(Rc::new(Execution {
runner: RefCell::new(RunnerEnum::Pending),
event_loop_recreation: Cell::new(false),
events: RefCell::new(VecDeque::new()),
#[allow(clippy::disallowed_methods)]
window: web_sys::window().expect("only callable from inside the `Window`"),
@ -649,6 +651,9 @@ impl<T: 'static> Shared<T> {
// * For each undropped `Window`:
// * The `register_redraw_request` closure.
// * The `destroy_fn` closure.
if self.0.event_loop_recreation.get() {
crate::event_loop::EventLoopBuilder::<T>::allow_event_loop_recreation();
}
}
// Check if the event loop is currently closed
@ -691,6 +696,10 @@ impl<T: 'static> Shared<T> {
DeviceEvents::Never => false,
}
}
pub fn event_loop_recreation(&self, allow: bool) {
self.0.event_loop_recreation.set(allow)
}
}
pub(crate) enum EventWrapper<T: 'static> {