From 38f8d2e6ee37cb2eae7ab6d640f6e4a564658475 Mon Sep 17 00:00:00 2001
From: Thomas Nordquist <xxnerowingerxx@gmail.com>
Date: Mon, 8 Jul 2019 01:22:16 +0200
Subject: [PATCH] Improve render performance

---
 app/src/components/Tree/TreeNode/index.tsx | 15 +++++++++------
 1 file changed, 9 insertions(+), 6 deletions(-)

diff --git a/app/src/components/Tree/TreeNode/index.tsx b/app/src/components/Tree/TreeNode/index.tsx
index d1bb507..29c69d6 100644
--- a/app/src/components/Tree/TreeNode/index.tsx
+++ b/app/src/components/Tree/TreeNode/index.tsx
@@ -81,12 +81,15 @@ function TreeNodeComponent(props: Props) {
     didSelectTopic()
   }, [didSelectTopic])
 
-  const mouseOver = (event: React.MouseEvent) => {
-    event.stopPropagation()
-    if (settings.get('selectTopicWithMouseOver') && treeNode && treeNode.message && treeNode.message.value) {
-      didSelectTopic()
-    }
-  }
+  const mouseOver = useCallback(
+    (event: React.MouseEvent) => {
+      event.stopPropagation()
+      if (settings.get('selectTopicWithMouseOver') && treeNode && treeNode.message && treeNode.message.value) {
+        didSelectTopic()
+      }
+    },
+    [didSelectTopic]
+  )
 
   useEffect(() => {
     treeNode.viewModel && treeNode.viewModel.setExpanded(!isCollapsed, false)