From 09659ff25b8a5d92d183a455bb29ff003426305f Mon Sep 17 00:00:00 2001
From: Franco Fichtner <franco@opnsense.org>
Date: Tue, 12 Jan 2021 11:51:45 +0100
Subject: [PATCH] firmware: disable autoscroll if client position differs;
 closes #4545

This excludes the "reset", i.e. when the action was done or the page
loads initially with the previous log file.
---
 src/opnsense/mvc/app/views/OPNsense/Core/firmware.volt | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/src/opnsense/mvc/app/views/OPNsense/Core/firmware.volt b/src/opnsense/mvc/app/views/OPNsense/Core/firmware.volt
index 90debb012..a1264ef35 100644
--- a/src/opnsense/mvc/app/views/OPNsense/Core/firmware.volt
+++ b/src/opnsense/mvc/app/views/OPNsense/Core/firmware.volt
@@ -313,8 +313,13 @@
     function trackStatus() {
         ajaxGet('/api/core/firmware/upgradestatus', {}, function(data, status) {
             if (data['log'] != undefined) {
+                var autoscroll = $('#update_status')[0].scrollTop +
+                    $('#update_status')[0].clientHeight ===
+                    $('#update_status')[0].scrollHeight;
                 $('#update_status').html(data['log']);
-                $('#update_status').scrollTop($('#update_status')[0].scrollHeight);
+                if (autoscroll) {
+                    $('#update_status').scrollTop($('#update_status')[0].scrollHeight);
+                }
             }
             if (data['status'] == 'done') {
                 $("#upgrade_progress_maj").removeClass("fa fa-spinner fa-pulse");