1 files changed, 19 insertions, 0 deletions
diff --git a/Timeline/ClientApp/src/app/data/SyncStatusHub.ts b/Timeline/ClientApp/src/app/data/SyncStatusHub.ts
new file mode 100644
index 00000000..ed84f056
--- /dev/null
+++ b/Timeline/ClientApp/src/app/data/SyncStatusHub.ts
@@ -0,0 +1,19 @@
+export class SyncStatusHub {
+  private map = new Map<string, boolean>();
+
+  get(key: string): boolean {
+    return this.map.get(key) ?? false;
+  }
+
+  begin(key: string): void {
+    this.map.set(key, true);
+  }
+
+  end(key: string): void {
+    this.map.set(key, false);
+  }
+}
+
+export const syncStatusHub = new SyncStatusHub();
+
+export default syncStatusHub;