From b34ccd19e911765f5fde4a44888b05c35ddba1fa Mon Sep 17 00:00:00 2001
From: moklick <info@moritzklack.com>
Date: Thu, 8 Dec 2022 13:44:25 +0100
Subject: [PATCH 1/2] refactor(nodes): only trigger drag event when change
 happened

---
 packages/core/src/hooks/useDrag/index.ts | 11 +++++++++++
 1 file changed, 11 insertions(+)

diff --git a/packages/core/src/hooks/useDrag/index.ts b/packages/core/src/hooks/useDrag/index.ts
index 3ab1d0bb..7f1228a9 100644
--- a/packages/core/src/hooks/useDrag/index.ts
+++ b/packages/core/src/hooks/useDrag/index.ts
@@ -108,6 +108,9 @@ function useDrag({
                 x: pointerPos.xSnapped,
                 y: pointerPos.ySnapped,
               };
+
+              let hasChange = false;
+
               dragItems.current = dragItems.current.map((n) => {
                 const nextPosition = { x: pointerPos.x - n.distance.x, y: pointerPos.y - n.distance.y };
 
@@ -118,12 +121,20 @@ function useDrag({
 
                 const updatedPos = calcNextPosition(n, nextPosition, nodeInternals, nodeExtent, nodeOrigin);
 
+                // we want to make sure that we only fire a change event when there is a changes
+                hasChange =
+                  hasChange || n.position.x !== updatedPos.position.x || n.position.y !== updatedPos.position.y;
+
                 n.position = updatedPos.position;
                 n.positionAbsolute = updatedPos.positionAbsolute;
 
                 return n;
               });
 
+              if (!hasChange) {
+                return;
+              }
+
               const onDrag = nodeId ? onNodeDrag : wrapSelectionDragFunc(onSelectionDrag);
 
               updateNodePositions(dragItems.current, true, true);

From 23afb3abebdb42fad284f68bec164afac609563c Mon Sep 17 00:00:00 2001
From: moklick <info@moritzklack.com>
Date: Thu, 8 Dec 2022 13:50:01 +0100
Subject: [PATCH 2/2] chore(changeset): add

---
 .changeset/swift-mayflies-wink.md | 5 +++++
 1 file changed, 5 insertions(+)
 create mode 100644 .changeset/swift-mayflies-wink.md

diff --git a/.changeset/swift-mayflies-wink.md b/.changeset/swift-mayflies-wink.md
new file mode 100644
index 00000000..96bbef36
--- /dev/null
+++ b/.changeset/swift-mayflies-wink.md
@@ -0,0 +1,5 @@
+---
+'@reactflow/core': patch
+---
+
+Only trigger drag event when change happened