1 files changed, 8 insertions, 1 deletions
diff --git a/src/client/util/DragManager.ts b/src/client/util/DragManager.ts
index c8bc26b93..fb4a8985c 100644
--- a/src/client/util/DragManager.ts
+++ b/src/client/util/DragManager.ts
@@ -174,6 +174,13 @@ export namespace DragManager {
         userDropAction: dropActionType;
     }
 
+    let defaultPreDropFunc = (e: Event, de: DragManager.DropEvent, targetAction: dropActionType) => {
+        if (de.complete.docDragData) {
+            targetAction && (de.complete.docDragData.dropAction = targetAction);
+            e.stopPropagation();
+        }
+    };
+
     export function MakeDropTarget(element: HTMLElement, dropFunc: (e: Event, de: DropEvent) => void, doc?: Doc, preDropFunc?: (e: Event, de: DropEvent, targetAction: dropActionType) => void): DragDropDisposer {
         if ('canDrop' in element.dataset) {
             throw new Error("Element is already droppable, can't make it droppable again");
@@ -182,7 +189,7 @@ export namespace DragManager {
         const handler = (e: Event) => dropFunc(e, (e as CustomEvent<DropEvent>).detail);
         const preDropHandler = (e: Event) => {
             const de = (e as CustomEvent<DropEvent>).detail;
-            preDropFunc?.(e, de, StrCast(doc?.targetDropAction) as dropActionType);
+            (preDropFunc ?? defaultPreDropFunc)(e, de, StrCast(doc?.targetDropAction) as dropActionType);
         };
         element.addEventListener('dashOnDrop', handler);
         doc && element.addEventListener('dashPreDrop', preDropHandler);