fix: use_route should subscribe to changes to the route

packages/router/src/service.rs

@@ -1,7 +1,7 @@
 use gloo::history::{BrowserHistory, History, HistoryListener, Location};
 use std::{
     cell::{Cell, Ref, RefCell},
-    collections::HashMap,
+    collections::{HashMap, HashSet},
     rc::Rc,
 };
 
@@ -12,6 +12,7 @@ pub struct RouterService {
     pub(crate) pending_events: Rc<RefCell<Vec<RouteEvent>>>,
     history: Rc<RefCell<BrowserHistory>>,
     slots: Rc<RefCell<Vec<(ScopeId, String)>>>,
+    onchange_listeners: Rc<RefCell<HashSet<ScopeId>>>,
     root_found: Rc<Cell<Option<ScopeId>>>,
     cur_path_params: Rc<RefCell<HashMap<String, String>>>,
     listener: HistoryListener,
@@ -73,6 +74,7 @@ impl RouterService {
             regen_route,
             slots,
             pending_events,
+            onchange_listeners: Rc::new(RefCell::new(HashSet::new())),
             cur_path_params: Rc::new(RefCell::new(HashMap::new())),
         }
     }
@@ -143,6 +145,16 @@ impl RouterService {
     pub fn current_path_params(&self) -> Ref<HashMap<String, String>> {
         self.cur_path_params.borrow()
     }
+
+    pub fn subscribe_onchange(&self, id: ScopeId) {
+        log::trace!("Subscribing onchange for scope id {:?}", id);
+        self.onchange_listeners.borrow_mut().insert(id);
+    }
+
+    pub fn unsubscribe_onchange(&self, id: ScopeId) {
+        log::trace!("Subscribing onchange for scope id {:?}", id);
+        self.onchange_listeners.borrow_mut().remove(&id);
+    }
 }
 
 fn clean_route(route: String) -> String {