diff options
| -rw-r--r-- | src/client/views/nodes/ComparisonBox.tsx | 10 |
1 files changed, 6 insertions, 4 deletions
diff --git a/src/client/views/nodes/ComparisonBox.tsx b/src/client/views/nodes/ComparisonBox.tsx index 14a2c25bf..f140cc6e5 100644 --- a/src/client/views/nodes/ComparisonBox.tsx +++ b/src/client/views/nodes/ComparisonBox.tsx @@ -39,10 +39,12 @@ export class ComparisonBox extends ViewBoxAnnotatableComponent<FieldViewProps, C @undoBatch private dropHandler = (event: Event, dropEvent: DragManager.DropEvent, fieldKey: string) => { - event.stopPropagation(); // prevent parent Doc from registering new position so that it snaps back into place - const droppedDocs = dropEvent.complete.docDragData?.droppedDocuments; - if (droppedDocs?.length) { - this.dataDoc[fieldKey] = droppedDocs[0]; + if (dropEvent.complete.docDragData) { + event.stopPropagation(); // prevent parent Doc from registering new position so that it snaps back into place + const droppedDocs = dropEvent.complete.docDragData?.droppedDocuments; + if (droppedDocs?.length) { + this.dataDoc[fieldKey] = droppedDocs[0]; + } } } |