delay scene init until document active (excalidraw#1920)

* delay scene init until document active * use opts.once for the listener
lzbgt · Jul 20, 2020 · b07aa6e · b07aa6e
1 parent cf36cb3
commit b07aa6e
Showing 1 changed file with 8 additions and 0 deletions.
diff --git a/src/components/App.tsx b/src/components/App.tsx
@@ -474,6 +474,14 @@ class App extends React.Component<ExcalidrawProps, AppState> {
           window.history.replaceState({}, "Excalidraw", window.location.origin);
         }
       } else {
+        // https://github.com/excalidraw/excalidraw/issues/1919
+        if (document.hidden) {
+          window.addEventListener("focus", () => this.initializeScene(), {
+            once: true,
+          });
+          return;
+        }
+
         isCollaborationScene = false;
         window.history.replaceState({}, "Excalidraw", window.location.origin);
       }