From 1fb730a86c88658e409d053fbabeb96a6d4dcdfd Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Vidar=20Eld=C3=B8y?= <vidar@eldoy.com>
Date: Sun, 10 Sep 2023 00:06:53 +0200
Subject: [PATCH] doc: save user preference for JS flavor

PR-URL: https://github.com/nodejs/node/pull/49526
Fixes: https://github.com/nodejs/node/issues/49508
Reviewed-By: Antoine du Hamel <duhamelantoine1995@gmail.com>
Reviewed-By: Chemi Atlow <chemi@atlow.co.il>
---
 doc/api_assets/api.js | 25 +++++++++++++++++++++++++
 1 file changed, 25 insertions(+)

diff --git a/doc/api_assets/api.js b/doc/api_assets/api.js
index f63074ef39bc80..c7568206e29f19 100644
--- a/doc/api_assets/api.js
+++ b/doc/api_assets/api.js
@@ -136,6 +136,29 @@
     updateHashes();
   }
 
+  function setupFlavorToggles() {
+    const kFlavorPreference = 'customFlavor';
+    const flavorSetting = localStorage.getItem(kFlavorPreference) === 'true';
+    const flavorToggles = document.querySelectorAll('.js-flavor-toggle');
+
+    flavorToggles.forEach((toggleElement) => {
+      toggleElement.checked = flavorSetting;
+      toggleElement.addEventListener('change', (e) => {
+        const checked = e.target.checked;
+
+        if (checked) {
+          localStorage.setItem(kFlavorPreference, true);
+        } else {
+          localStorage.removeItem(kFlavorPreference);
+        }
+
+        flavorToggles.forEach((el) => {
+          el.checked = checked;
+        });
+      });
+    });
+  }
+
   function setupCopyButton() {
     const buttons = document.querySelectorAll('.copy-button');
     buttons.forEach((button) => {
@@ -182,6 +205,8 @@
     // Make link to other versions of the doc open to the same hash target (if it exists).
     setupAltDocsLink();
 
+    setupFlavorToggles();
+
     setupCopyButton();
   }