From c7c15cfc768e2a63e579f39594e87b14470e837e Mon Sep 17 00:00:00 2001
From: Ulli Hafner <ullrich.hafner@gmail.com>
Date: Mon, 22 May 2023 12:23:51 +0200
Subject: [PATCH] Enable built-in auto-save functionality of DataTables.

Do not use custom serialization anymore when Prototype is not loaded.
Requires Jenkins 2.406 or newer.
---
 README.adoc                 | 6 +-----
 src/main/webapp/js/table.js | 5 ++++-
 2 files changed, 5 insertions(+), 6 deletions(-)

diff --git a/README.adoc b/README.adoc
index 7ef64380..a8a26c5f 100644
--- a/README.adoc
+++ b/README.adoc
@@ -57,11 +57,7 @@ with the following piece of code:
 
     <div class="table-responsive">
         <table
-          class="table table-hover table-striped display"
-          id="id"
-          <!-- enable to remember last search text. Per default false -->
-          data-remember-search-text="true"
-          >
+          class="table table-striped display" id="id">
             [...]
         </table>
     </div>
diff --git a/src/main/webapp/js/table.js b/src/main/webapp/js/table.js
index e1c73ad6..ae36b2fd 100644
--- a/src/main/webapp/js/table.js
+++ b/src/main/webapp/js/table.js
@@ -145,7 +145,10 @@ jQuery3(document).ready(function () {
                 });
             }
 
-            if (!table.hasClass("custom-persistence-off")) {
+            // Since Jenkins 2.406 Prototype has been removed from core.
+            // So we basically do not need to support a custom serialization of the data-tables state
+            // anymore. We can now use the default auto-save functionality of DataTables.
+            if (typeof Prototype === 'object') {
                 // Add event listener that stores the order a user selects
                 table.on('order.dt', function () {
                     const order = table.DataTable().order();