From d56bc4eccedcbc55dc38d54d72c28759702be20c Mon Sep 17 00:00:00 2001
From: Matthew Runyon <matthewrunyon@deephaven.io>
Date: Thu, 21 Dec 2023 12:37:26 -0600
Subject: [PATCH] Add example of non-closable

---
 packages/code-studio/src/styleguide/Navigations.tsx | 2 +-
 packages/components/src/navigation/NavTabList.tsx   | 4 ++--
 2 files changed, 3 insertions(+), 3 deletions(-)

diff --git a/packages/code-studio/src/styleguide/Navigations.tsx b/packages/code-studio/src/styleguide/Navigations.tsx
index e54b028c42..2b5ea61c7a 100644
--- a/packages/code-studio/src/styleguide/Navigations.tsx
+++ b/packages/code-studio/src/styleguide/Navigations.tsx
@@ -22,7 +22,7 @@ function NavTabListExample({
   const [tabs, setTabs] = useState(() => {
     const tabItems: NavTabItem[] = [];
     for (let i = 0; i < count; i += 1) {
-      tabItems.push({ key: `${i}`, title: `Tab ${i}`, isClosable: true });
+      tabItems.push({ key: `${i}`, title: `Tab ${i}`, isClosable: i > 0 });
     }
     return tabItems;
   });
diff --git a/packages/components/src/navigation/NavTabList.tsx b/packages/components/src/navigation/NavTabList.tsx
index dd6359cec8..e6dccf01f1 100644
--- a/packages/components/src/navigation/NavTabList.tsx
+++ b/packages/components/src/navigation/NavTabList.tsx
@@ -69,9 +69,9 @@ function makeBaseContextItems(
   tabs: NavTabItem[],
   onClose: ((key: string) => void) | undefined
 ): ResolvableContextAction[] {
-  const { isClosable, key } = tab;
+  const { isClosable = false, key } = tab;
   const contextActions: ResolvableContextAction[] = [];
-  if (isClosable != null && onClose != null) {
+  if (isClosable && onClose != null) {
     contextActions.push({
       title: 'Close',
       order: 10,