From db1926b944349d75270f7cad65c3b67d83f9b514 Mon Sep 17 00:00:00 2001
From: maliming <malimings@gmail.com>
Date: Mon, 8 Jul 2024 19:27:49 +0800
Subject: [PATCH] Get `pageLanguage` from `CurrentUICulture`.

---
 .../DocsWebGoogleTranslationOptions.cs              | 13 +++++++++++++
 .../Pages/Documents/Project/Index.cshtml            |  3 ++-
 2 files changed, 15 insertions(+), 1 deletion(-)

diff --git a/modules/docs/src/Volo.Docs.Web/DocsWebGoogleTranslationOptions.cs b/modules/docs/src/Volo.Docs.Web/DocsWebGoogleTranslationOptions.cs
index 128914f136..a970cdbf98 100644
--- a/modules/docs/src/Volo.Docs.Web/DocsWebGoogleTranslationOptions.cs
+++ b/modules/docs/src/Volo.Docs.Web/DocsWebGoogleTranslationOptions.cs
@@ -1,4 +1,6 @@
+using System;
 using System.Collections.Generic;
+using System.Globalization;
 
 namespace Volo.Docs;
 
@@ -11,6 +13,8 @@ public class DocsWebGoogleTranslationOptions
     /// </summary>
     public List<string> IncludedLanguages { get; set; }
 
+    public Func<CultureInfo, string> GetCultureLanguageCode { get; set; }
+
     public DocsWebGoogleTranslationOptions()
     {
         UseGoogleTranslation = false;
@@ -34,5 +38,14 @@ public class DocsWebGoogleTranslationOptions
             "de",
             "es"
         ];
+        GetCultureLanguageCode = culture =>
+        {
+            return culture.Name switch
+            {
+                "zh-Hans" => "zh-CN",
+                "zh-Hant" => "zh-TW",
+                _ => culture.TwoLetterISOLanguageName
+            };
+        };
     }
 }
diff --git a/modules/docs/src/Volo.Docs.Web/Pages/Documents/Project/Index.cshtml b/modules/docs/src/Volo.Docs.Web/Pages/Documents/Project/Index.cshtml
index 5dcbfa16cc..400ef5cd59 100644
--- a/modules/docs/src/Volo.Docs.Web/Pages/Documents/Project/Index.cshtml
+++ b/modules/docs/src/Volo.Docs.Web/Pages/Documents/Project/Index.cshtml
@@ -1,4 +1,5 @@
 @page
+@using System.Globalization
 @using Microsoft.AspNetCore.Mvc.Localization
 @using Microsoft.AspNetCore.Mvc.TagHelpers
 @using Microsoft.Extensions.Options
@@ -62,7 +63,7 @@
             <script type="text/javascript">
                 function googleTranslateElementInit() {
                     new google.translate.TranslateElement({
-                      pageLanguage: 'en',
+                      pageLanguage: '@DocsWebOptions.Value.GetCultureLanguageCode(CultureInfo.CurrentUICulture)',
                       autoDisplay: false,
                       disableAutoTranslation: true,
                       includedLanguages: '@string.Join(",", DocsWebOptions.Value.IncludedLanguages)',