fixed exceptions when delete entities from a Map when it's in the process of unmounting

1 files changed, 12 insertions, 3 deletions

diff --git a/src/client/views/nodes/MapBox/MapBox.tsx b/src/client/views/nodes/MapBox/MapBox.tsx
index 6f552953d..f0106dbbb 100644
--- a/src/client/views/nodes/MapBox/MapBox.tsx
+++ b/src/client/views/nodes/MapBox/MapBox.tsx
@@ -98,10 +98,13 @@ export class MapBox extends ViewBoxAnnotatableComponent<ViewBoxAnnotatableProps
     }
 
     componentDidMount() {
+        this._unmounting = false;
         this.props.setContentView?.(this);
     }
 
+    _unmounting = false;
     componentWillUnmount(): void {
+        this._unmounting = true;
         this.deselectPin();
         Object.keys(this._disposers).forEach(key => this._disposers[key]?.());
     }
@@ -343,10 +346,14 @@ export class MapBox extends ViewBoxAnnotatableComponent<ViewBoxAnnotatableProps
             Doc.setDocFilter(this.rootDoc, '-linkedTo', Field.toString(DocCast(this.selectedPin.mapPin)), 'removeAll');
 
             const temp = this.selectedPin;
-            this._bingMap.current.entities.remove(this.map_docToPinMap.get(temp));
+            if (!this._unmounting) {
+                this._bingMap.current.entities.remove(this.map_docToPinMap.get(temp));
+            }
             const newpin = new this.MicrosoftMaps.Pushpin(new this.MicrosoftMaps.Location(temp.latitude, temp.longitude));
             this.MicrosoftMaps.Events.addHandler(newpin, 'click', (e: any) => this.pushpinClicked(temp as Doc));
-            this._bingMap.current.entities.push(newpin);
+            if (!this._unmounting) {
+                this._bingMap.current.entities.push(newpin);
+            }
             this.map_docToPinMap.set(temp, newpin);
             this.selectedPin = undefined;
             this.bingSearchBarContents = this.rootDoc.map;
@@ -488,7 +495,9 @@ export class MapBox extends ViewBoxAnnotatableComponent<ViewBoxAnnotatableProps
      * Removes pushpin from map render
      */
     deletePushpin = (pinDoc: Doc) => {
-        this._bingMap.current.entities.remove(this.map_docToPinMap.get(pinDoc));
+        if (!this._unmounting) {
+            this._bingMap.current.entities.remove(this.map_docToPinMap.get(pinDoc));
+        }
         this.map_docToPinMap.delete(pinDoc);
         this.selectedPin = undefined;
     };