refactor(core): CORE-14 split typed settings and scope tree lifetimes

packages/artplayer/src/setting/activity.ts

@@ -0,0 +1,22 @@
+import type ResourceScope from '../lifecycle/scope'
+
+const pauses = new WeakMap<ResourceScope, number>()
+
+export function settingScopeActive(scope: ResourceScope): boolean {
+  return !scope.closed && !pauses.get(scope)
+}
+
+export function pauseSettingScope(scope: ResourceScope): () => void {
+  pauses.set(scope, (pauses.get(scope) || 0) + 1)
+  let paused = true
+  return () => {
+    if (!paused)
+      return
+    paused = false
+    const count = (pauses.get(scope) || 1) - 1
+    if (count)
+      pauses.set(scope, count)
+    else
+      pauses.delete(scope)
+  }
+}