From d04ae2f72861e505d58c59693700c232d7253ac4 Mon Sep 17 00:00:00 2001
From: Pasi Eronen <pe@iki.fi>
Date: Tue, 8 Dec 2020 20:25:47 +0200
Subject: [PATCH] fix: don't run hover animation frame after the drag has ended

---
 src/utils/dnd-manager.js | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/src/utils/dnd-manager.js b/src/utils/dnd-manager.js
index 6adb8dca..bc8fdd14 100644
--- a/src/utils/dnd-manager.js
+++ b/src/utils/dnd-manager.js
@@ -235,9 +235,14 @@ export default class DndManager {
         // throttle `dragHover` work to available animation frames
         cancelAnimationFrame(this.rafId);
         this.rafId = requestAnimationFrame(() => {
+          const item = monitor.getItem()
+          // skip if drag already ended before the animation frame
+          if (!item || !monitor.isOver()) {
+            return;
+          }
           this.dragHover({
             node: draggedNode,
-            path: monitor.getItem().path,
+            path: item.path,
             minimumTreeIndex: dropTargetProps.listIndex,
             depth: targetDepth,
           });