From 4947f683b7530f8e6684865ab53ea38633de0f4d Mon Sep 17 00:00:00 2001
From: peterkogo <peter@xyflow.com>
Date: Wed, 8 Jan 2025 16:09:20 +0100
Subject: [PATCH] Move areSetsEqual to system

---
 ...ct-fans-grow.md => twelve-bottles-turn.md} |  1 +
 packages/react/src/container/Pane/index.tsx   | 23 +++++++------------
 packages/system/src/utils/general.ts          | 14 +++++++++++
 3 files changed, 23 insertions(+), 15 deletions(-)
 rename .changeset/{perfect-fans-grow.md => twelve-bottles-turn.md} (85%)

diff --git a/.changeset/perfect-fans-grow.md b/.changeset/twelve-bottles-turn.md
similarity index 85%
rename from .changeset/perfect-fans-grow.md
rename to .changeset/twelve-bottles-turn.md
index 2d4c738e..89b28a52 100644
--- a/.changeset/perfect-fans-grow.md
+++ b/.changeset/twelve-bottles-turn.md
@@ -1,5 +1,6 @@
 ---
 '@xyflow/react': patch
+'@xyflow/system': patch
 ---
 
 Optimize selections and take into account if edges connected to selected nodes are actually selectable.
diff --git a/packages/react/src/container/Pane/index.tsx b/packages/react/src/container/Pane/index.tsx
index 99d81da3..3b7c94bb 100644
--- a/packages/react/src/container/Pane/index.tsx
+++ b/packages/react/src/container/Pane/index.tsx
@@ -10,7 +10,14 @@ import {
 } from 'react';
 import { shallow } from 'zustand/shallow';
 import cc from 'classcat';
-import { getNodesInside, getEventPosition, SelectionMode, type NodeChange, type EdgeChange } from '@xyflow/system';
+import {
+  getNodesInside,
+  getEventPosition,
+  SelectionMode,
+  areSetsEqual,
+  type NodeChange,
+  type EdgeChange,
+} from '@xyflow/system';
 
 import { UserSelection } from '../../components/UserSelection';
 import { containerStyle } from '../../styles/utils';
@@ -39,20 +46,6 @@ type PaneProps = {
   >
 >;
 
-function areSetsEqual(a: Set<string>, b: Set<string>) {
-  if (a.size !== b.size) {
-    return false;
-  }
-
-  for (const item of a) {
-    if (!b.has(item)) {
-      return false;
-    }
-  }
-
-  return true;
-}
-
 const wrapHandler = (
   handler: React.MouseEventHandler | undefined,
   containerRef: React.MutableRefObject<HTMLDivElement | null>
diff --git a/packages/system/src/utils/general.ts b/packages/system/src/utils/general.ts
index 088209a3..7f631a59 100644
--- a/packages/system/src/utils/general.ts
+++ b/packages/system/src/utils/general.ts
@@ -263,3 +263,17 @@ export function evaluateAbsolutePosition(
 
   return positionAbsolute;
 }
+
+export function areSetsEqual(a: Set<string>, b: Set<string>) {
+  if (a.size !== b.size) {
+    return false;
+  }
+
+  for (const item of a) {
+    if (!b.has(item)) {
+      return false;
+    }
+  }
+
+  return true;
+}