From c277b5981d23c4f9218fb9672b12fa108a79fdca Mon Sep 17 00:00:00 2001
From: Claude Brisson <claude@renegat.net>
Date: Sat, 20 Jan 2024 10:56:10 +0100
Subject: [PATCH] Persistent scroll

---
 view-webapp/src/main/webapp/js/main.js | 17 +++++++++++++++++
 1 file changed, 17 insertions(+)

diff --git a/view-webapp/src/main/webapp/js/main.js b/view-webapp/src/main/webapp/js/main.js
index f416440..f0ffa38 100644
--- a/view-webapp/src/main/webapp/js/main.js
+++ b/view-webapp/src/main/webapp/js/main.js
@@ -252,5 +252,22 @@ onLoad(() => {
     }, 1);
   }
 
+  // persistent scroll
+  $('#center').on('scroll', e => {
+    let scroll = $('#center')[0].scrollTop;
+    console.log(`scroll=${scroll}`);
+    store('scroll', scroll);
+  });
+  let persistentScroll = store('scroll');
+  if (persistentScroll) {
+    setTimeout(() => {
+      console.log(`scrollHeight = ${$('#center')[0].scrollHeight}`);
+      console.log(`scrolling to ${persistentScroll}`);
+      $('#center')[0].scrollTop = persistentScroll;
+      let scroll = $('#center')[0].scrollTop;
+      console.log(`scrolled to ${scroll}`);
+    }, 200);
+  }
+
 });