1 files changed, 15 insertions, 1 deletions
diff --git a/src/client/views/OverlayView.tsx b/src/client/views/OverlayView.tsx
index 62aa4d1d4..c174befc0 100644
--- a/src/client/views/OverlayView.tsx
+++ b/src/client/views/OverlayView.tsx
@@ -1,4 +1,3 @@
-
 import { action, computed, observable } from 'mobx';
 import { observer } from 'mobx-react';
 import { computedFn } from 'mobx-utils';
@@ -17,6 +16,7 @@ import { LightboxView } from './LightboxView';
 import { DocumentView, DocumentViewInternal } from './nodes/DocumentView';
 import './OverlayView.scss';
 import { DefaultStyleProvider } from './StyleProvider';
+const _global = (window /* browser */ || global) /* node */ as any;
 
 export type OverlayDisposer = () => void;
 
@@ -116,6 +116,20 @@ export class OverlayView extends React.Component {
         super(props);
         if (!OverlayView.Instance) {
             OverlayView.Instance = this;
+            new _global.ResizeObserver(
+                action((entries: any) => {
+                    for (const entry of entries) {
+                        DocListCast(Doc.MyOverlayDocs?.data).forEach(doc => {
+                            if (NumCast(doc.overlayX) > entry.contentRect.width - 10) {
+                                doc.overlayX = entry.contentRect.width - 10;
+                            }
+                            if (NumCast(doc.overlayY) > entry.contentRect.height - 10) {
+                                doc.overlayY = entry.contentRect.height - 10;
+                            }
+                        });
+                    }
+                })
+            ).observe(window.document.body);
         }
     }