From a83ac65ab6d3aec79e5e8bce1e86af408ef46223 Mon Sep 17 00:00:00 2001
From: Xuefer H <xuefer@gmail.com>
Date: Tue, 11 Apr 2023 18:26:53 +0800
Subject: [PATCH] [WebUI] Sidebar: fix error for lazy init

When sidebar is hidden at WebUI startup, header isn't created yet.

Signed-off-by: Xuefer H <xuefer@gmail.com>
Closes: https://github.com/deluge-torrent/deluge/pull/419
---
 deluge/ui/web/js/deluge-all/Sidebar.js | 18 ++++++++++--------
 1 file changed, 10 insertions(+), 8 deletions(-)

diff --git a/deluge/ui/web/js/deluge-all/Sidebar.js b/deluge/ui/web/js/deluge-all/Sidebar.js
index eb08a898f..a6512b258 100644
--- a/deluge/ui/web/js/deluge-all/Sidebar.js
+++ b/deluge/ui/web/js/deluge-all/Sidebar.js
@@ -60,14 +60,16 @@ Deluge.Sidebar = Ext.extend(Ext.Panel, {
         this.doLayout();
         this.panels[filter] = panel;
 
-        panel.header.on('click', function (header) {
-            if (!deluge.config.sidebar_multiple_filters) {
-                deluge.ui.update();
-            }
-            if (!panel.list.getSelectionCount()) {
-                panel.list.select(0);
-            }
-        });
+        if (panel.header) {
+            panel.header.on('click', function (header) {
+                if (!deluge.config.sidebar_multiple_filters) {
+                    deluge.ui.update();
+                }
+                if (!panel.list.getSelectionCount()) {
+                    panel.list.select(0);
+                }
+            });
+        }
         this.fireEvent('filtercreate', this, panel);
 
         panel.updateStates(states);