From 60bbbb4d5872c124350dd7ca4e6c04cc97130201 Mon Sep 17 00:00:00 2001
From: moklick <info@moritzklack.com>
Date: Mon, 18 Jul 2022 12:05:03 +0200
Subject: [PATCH] fix(expandParent): check for dimensions closes #2280

---
 example/src/Subflow/index.tsx | 1 +
 src/utils/changes.ts          | 9 +++------
 2 files changed, 4 insertions(+), 6 deletions(-)

diff --git a/example/src/Subflow/index.tsx b/example/src/Subflow/index.tsx
index 6b6c4799..a3ae8ab5 100644
--- a/example/src/Subflow/index.tsx
+++ b/example/src/Subflow/index.tsx
@@ -91,6 +91,7 @@ const initialNodes: Node[] = [
     position: { x: 225, y: 50 },
     className: 'light',
     parentNode: '5',
+    expandParent: true,
   },
   { id: '2', data: { label: 'Node 2' }, position: { x: 100, y: 100 }, className: 'light' },
   { id: '3', data: { label: 'Node 3' }, position: { x: 400, y: 100 }, className: 'light' },
diff --git a/src/utils/changes.ts b/src/utils/changes.ts
index 76bc716e..2b6113eb 100644
--- a/src/utils/changes.ts
+++ b/src/utils/changes.ts
@@ -10,17 +10,14 @@ function handleParentExpand(res: any[], updateItem: any) {
     if (extendWidth > 0 || extendHeight > 0 || updateItem.position.x < 0 || updateItem.position.y < 0) {
       parent.style = { ...parent.style } || {};
 
+      parent.style.width = parent.style.width ?? parent.width;
+      parent.style.height = parent.style.height ?? parent.height;
+
       if (extendWidth > 0) {
-        if (!parent.style.width) {
-          parent.style.width = parent.width;
-        }
         parent.style.width += extendWidth;
       }
 
       if (extendHeight > 0) {
-        if (!parent.style.height) {
-          parent.style.height = parent.height;
-        }
         parent.style.height += extendHeight;
       }