From a264a8c6f7cb8fd2537af227bd0297fcb17d720c Mon Sep 17 00:00:00 2001
From: MHuiG <616001163@qq.com>
Date: Mon, 5 Sep 2022 07:43:03 +0800
Subject: [PATCH] =?UTF-8?q?perf(side):=20=E5=A6=82=E6=9E=9C=20sidebar=20?=
 =?UTF-8?q?=E4=B8=BA=E7=A9=BA=EF=BC=8C=E9=9A=90=E8=97=8F=20sidebar?=
MIME-Version: 1.0
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---
 source/js/app.js | 13 +++++++++++--
 1 file changed, 11 insertions(+), 2 deletions(-)

diff --git a/source/js/app.js b/source/js/app.js
index dd530cc58..0a12afd7f 100755
--- a/source/js/app.js
+++ b/source/js/app.js
@@ -29,10 +29,10 @@ const locationHash = () => {
     if (target) {
       setTimeout(() => {
         if (window.location.hash.startsWith('#fn')) { // hexo-reference https://github.com/volantis-x/hexo-theme-volantis/issues/647
-          volantis.scroll.to(target, { addTop: - volantis.dom.header.offsetHeight - 5, behavior: 'instant', observer:true })
+          volantis.scroll.to(target, { addTop: - volantis.dom.header.offsetHeight - 5, behavior: 'instant', observer: true })
         } else {
           // 锚点中上半部有大片空白 高度大概是 volantis.dom.header.offsetHeight
-          volantis.scroll.to(target, { addTop: 5, behavior: 'instant', observer:true })
+          volantis.scroll.to(target, { addTop: 5, behavior: 'instant', observer: true })
         }
       }, 1000)
     }
@@ -71,6 +71,15 @@ const VolantisApp = (() => {
       fn.scrolltoElement(volantis.dom.bodyAnchor);
     });
 
+    // 如果 sidebar 为空，隐藏 sidebar。
+    const sidebar = document.querySelector("#l_side")
+    if (sidebar) {
+      const sectionList = sidebar.querySelectorAll("section")
+      if (!sectionList.length) {
+        document.querySelector("#l_main").classList.add("no_sidebar")
+      }
+    }
+
     // 站点信息 最后活动日期
     if (volantis.GLOBAL_CONFIG.sidebar.for_page.includes('webinfo') || volantis.GLOBAL_CONFIG.sidebar.for_post.includes('webinfo')) {
       const lastupd = volantis.GLOBAL_CONFIG.sidebar.webinfo.lastupd;