fix(theme): 修复代码块行数显示问题

packages/plugin-copy-code/package.json

@@ -31,7 +31,7 @@
     "@vuepress/shared": "2.0.0-beta.49",
     "@vuepress/utils": "2.0.0-beta.49",
     "vue": "^3.2.37",
-    "vue-router": "^4.1.2"
+    "vue-router": "^4.1.3"
   },
   "publishConfig": {
     "access": "public"

packages/plugin-page-collection/package.json

@@ -35,7 +35,7 @@
     "@vuepress/utils": "2.0.0-beta.49",
     "leancloud-storage": "^4.12.2",
     "vue": "^3.2.37",
-    "vue-router": "^4.1.2"
+    "vue-router": "^4.1.3"
   },
   "publishConfig": {
     "access": "public"

packages/theme/package.json

@@ -66,7 +66,7 @@
     "sass-loader": "^13.0.2",
     "ts-debounce": "^4.0.0",
     "vue": "^3.2.37",
-    "vue-router": "^4.1.2",
+    "vue-router": "^4.1.3",
     "vuepress-plugin-comment2": "2.0.0-beta.87",
     "vuepress-plugin-md-enhance": "2.0.0-beta.87",
     "vuepress-plugin-seo2": "2.0.0-beta.87",

packages/theme/src/client/components/PostList.vue

@@ -34,8 +34,9 @@ watch(
 
 const route = useRoute()
 let offsetHeight = 0
-onBeforeRouteUpdate((to) => {
+onBeforeRouteUpdate((to, from) => {
   if (__VUEPRESS_SSR__) return
+  if (to.fullPath === from.fullPath) return
   setPostListPage((to.query.p as unknown as number) || 1)
   const { home, banner, mobileBanner } = frontmatter.value
   let top = 0

packages/theme/src/client/components/SidebarItems.vue

@@ -116,8 +116,8 @@ const sidebarClick = (sidebar: SidebarListComputed): void => {
       p.sidebar-items-title {
         position: relative;
         margin: 0;
-        height: 2.5rem;
-        line-height: 2.5rem;
+        padding: 0.25rem 0;
+        line-height: 1.55;
         cursor: pointer;
 
         .arrow-right-icon {

packages/theme/src/client/styles/code.scss

@@ -234,17 +234,19 @@ div[class*='language-'] {
       color: var(--code-ln-color);
       padding-top: 1.25rem;
       line-height: 1.4;
-
-      br {
-        user-select: none;
-      }
+      counter-reset: line-number;
 
       .line-number {
         position: relative;
         z-index: 3;
         user-select: none;
-        font-size: 0.85em;
-        line-height: 0;
+        height: 1.4em;
+
+        &::before {
+          counter-increment: line-number;
+          content: counter(line-number);
+          font-size: 0.85em;
+        }
       }
     }