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

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* 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
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4 changed files with 31 additions and 1 deletions
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9
src/platform_impl/web/event_loop/runner.rs
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@ -48,6 +48,9 @@ impl<T: 'static> Shared<T> {
pub fn set_listener(&self, event_handler: Box<dyn FnMut(Event<T>, &mut root::ControlFlow)>) {
self.0.runner.replace(Some(Runner::new(event_handler)));
self.send_event(Event::NewEvents(StartCause::Init));
let close_instance = self.clone();
backend::on_unload(move || close_instance.handle_unload());
}
// Add an event to the event loop runner
@ -110,6 +113,12 @@ impl<T: 'static> Shared<T> {
}
}
fn handle_unload(&self) {
self.apply_control_flow(root::ControlFlow::Exit);
let mut control = self.current_control_flow();
self.handle_event(Event::LoopDestroyed, &mut control);
}
// handle_event takes in events and either queues them or applies a callback
//
// It should only ever be called from send_event