From f74cf3f5be30f8ec488b7f937a93e2596488ecbf Mon Sep 17 00:00:00 2001
From: Andrew Stein <steinlink@gmail.com>
Date: Wed, 6 Nov 2024 11:29:53 -0500
Subject: [PATCH] Fix Jupyter widget plugin switch

Signed-off-by: Andrew Stein <steinlink@gmail.com>
---
 packages/perspective-viewer-datagrid/src/js/model/toolbar.js | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/packages/perspective-viewer-datagrid/src/js/model/toolbar.js b/packages/perspective-viewer-datagrid/src/js/model/toolbar.js
index ce6601a900..2177580613 100644
--- a/packages/perspective-viewer-datagrid/src/js/model/toolbar.js
+++ b/packages/perspective-viewer-datagrid/src/js/model/toolbar.js
@@ -27,7 +27,7 @@ export function toggle_edit_mode(mode = undefined) {
     }
 
     this.model._edit_mode = mode;
-    this.parentElement.setSelection();
+    this.parentElement?.setSelection();
     this.model._selection_state = {
         selected_areas: [],
         dirty: true,