From b8979ea9ee3158961323e805795d90cf660cee93 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=E4=B8=96=E7=95=8C?= <i@sekai.icu>
Date: Mon, 23 Feb 2026 23:27:33 +0800
Subject: [PATCH] Fix JSON highlighting lost after formatting config

---
 MacLibrary/CodeEditTextView.swift | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/MacLibrary/CodeEditTextView.swift b/MacLibrary/CodeEditTextView.swift
index 04240f4..dcfcbde 100644
--- a/MacLibrary/CodeEditTextView.swift
+++ b/MacLibrary/CodeEditTextView.swift
@@ -128,6 +128,9 @@ struct CodeEditTextView: NSViewRepresentable {
         guard let controller = context.coordinator.controller else { return }
         if controller.text != text {
             controller.text = text
+            // setText() creates a new Highlighter but doesn't trigger initial highlighting.
+            // Re-setting the language forces the highlighter to invalidate and re-highlight.
+            controller.language = .json
         }
         if controller.configuration.behavior.isEditable != isEditable {
             controller.configuration = makeConfiguration(isEditable: isEditable)