fix(input): dropped input handlers properly release methods

src/objects/input/mod.rs

@@ -9,21 +9,21 @@ use crate::nodes::{
 	spatial::Spatial,
 };
 use glam::vec3;
-use std::sync::Arc;
+use std::sync::{Arc, Weak};
 
 #[derive(Default)]
 pub struct CaptureManager {
-	pub capture: Option<Arc<InputHandler>>,
+	pub capture: Weak<InputHandler>,
 }
 impl CaptureManager {
 	pub fn update_capture(&mut self, method: &InputMethod) {
-		if let Some(capture) = &self.capture {
+		if let Some(capture) = &self.capture.upgrade() {
 			if !method
 				.capture_attempts
 				.get_valid_contents()
 				.contains(capture)
 			{
-				self.capture.take();
+				self.capture = Weak::new();
 			}
 		}
 	}
@@ -32,13 +32,13 @@ impl CaptureManager {
 		method: &InputMethod,
 		distance_calculator: DistanceCalculator,
 	) {
-		if self.capture.is_none() {
+		if self.capture.upgrade().is_none() {
 			self.capture = find_closest_capture(method, distance_calculator);
 		}
 	}
 	pub fn apply_capture(&self, method: &InputMethod) {
 		method.captures.clear();
-		if let Some(capture) = &self.capture {
+		if let Some(capture) = &self.capture.upgrade() {
 			method.set_handler_order([capture].into_iter());
 			method.captures.add_raw(capture);
 		}
@@ -50,7 +50,7 @@ type DistanceCalculator = fn(&Arc<Spatial>, &InputDataType, &Field) -> Option<f3
 pub fn find_closest_capture(
 	method: &InputMethod,
 	distance_calculator: DistanceCalculator,
-) -> Option<Arc<InputHandler>> {
+) -> Weak<InputHandler> {
 	method
 		.capture_attempts
 		.get_valid_contents()
@@ -60,7 +60,8 @@ pub fn find_closest_capture(
 				.map(|dist| (h.clone(), dist))
 		})
 		.min_by(|(_, dist_a), (_, dist_b)| dist_a.partial_cmp(dist_b).unwrap())
-		.map(|(handler, _)| handler)
+		.map(|(handler, _)| Arc::downgrade(&handler))
+		.unwrap_or_default()
 }
 
 pub fn get_sorted_handlers(