fix: readable().value should return latest value

netless-io · Jan 26, 2024 · 6f89be6 · 6f89be6
1 parent 4984ddc
commit 6f89be6
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diff --git a/CHANGELOG.md b/CHANGELOG.md
@@ -4,6 +4,7 @@
 
 - Added toolbar config `placement: "left" | "right"` and `items: ToolbarItem[]` to further control the style of toolbar.
 - Fixed `insertDocs()` on projector's static response not returning the correct `appId`.
+- Fixed states like `camera.value` not returning the latest value when no one listens to it.
 
 ## 0.3.10
 

diff --git a/packages/fastboard-core/src/utils/store.ts b/packages/fastboard-core/src/utils/store.ts
@@ -64,6 +64,11 @@ export function readable<T>(value: T, start: StartStopNotifier<T> = noop): Reada
   }
   return {
     get value() {
+      if (subscribers.size === 0) {
+        stop = start(set) || noop;
+        stop();
+        stop = undefined;
+      }
       return value;
     },
     subscribe,