From 7396172a02a9ea8d80f9763469fd65a5a12ff3f7 Mon Sep 17 00:00:00 2001
From: wxiaoguang <wxiaoguang@gmail.com>
Date: Sat, 6 Apr 2024 20:07:08 +0800
Subject: [PATCH] Fix code block style for code preview (#30298)

Fix #30292

To avoid unnecessary style overriding, use "div" instead of "code"
---
 modules/markup/sanitizer.go                         | 2 +-
 services/markup/processorhelper_codepreview_test.go | 6 +++---
 templates/base/markup_codepreview.tmpl              | 2 +-
 web_src/css/markup/content.css                      | 2 +-
 4 files changed, 6 insertions(+), 6 deletions(-)

diff --git a/modules/markup/sanitizer.go b/modules/markup/sanitizer.go
index 77fbdf4520..570a1da248 100644
--- a/modules/markup/sanitizer.go
+++ b/modules/markup/sanitizer.go
@@ -65,7 +65,7 @@ func createDefaultPolicy() *bluemonday.Policy {
 	policy.AllowAttrs("class").Matching(regexp.MustCompile(`^lines-num$`)).OnElements("td")
 	policy.AllowAttrs("data-line-number").OnElements("span")
 	policy.AllowAttrs("class").Matching(regexp.MustCompile(`^lines-code chroma$`)).OnElements("td")
-	policy.AllowAttrs("class").Matching(regexp.MustCompile(`^code-inner$`)).OnElements("code")
+	policy.AllowAttrs("class").Matching(regexp.MustCompile(`^code-inner$`)).OnElements("div")
 
 	// For code preview (unicode escape)
 	policy.AllowAttrs("class").Matching(regexp.MustCompile(`^file-view( unicode-escaped)?$`)).OnElements("table")
diff --git a/services/markup/processorhelper_codepreview_test.go b/services/markup/processorhelper_codepreview_test.go
index 01db792925..154e4e8e44 100644
--- a/services/markup/processorhelper_codepreview_test.go
+++ b/services/markup/processorhelper_codepreview_test.go
@@ -36,10 +36,10 @@ func TestProcessorHelperCodePreview(t *testing.T) {
 	<table class="file-view">
 		<tbody><tr>
 				<td class="lines-num"><span data-line-number="1"></span></td>
-				<td class="lines-code chroma"><code class="code-inner"><span class="gh"># repo1</code></td>
+				<td class="lines-code chroma"><div class="code-inner"><span class="gh"># repo1</div></td>
 			</tr><tr>
 				<td class="lines-num"><span data-line-number="2"></span></td>
-				<td class="lines-code chroma"><code class="code-inner"></span><span class="gh"></span></code></td>
+				<td class="lines-code chroma"><div class="code-inner"></span><span class="gh"></span></div></td>
 			</tr></tbody>
 	</table>
 </div>
@@ -63,7 +63,7 @@ func TestProcessorHelperCodePreview(t *testing.T) {
 	<table class="file-view">
 		<tbody><tr>
 				<td class="lines-num"><span data-line-number="1"></span></td>
-				<td class="lines-code chroma"><code class="code-inner"><span class="gh"># repo1</code></td>
+				<td class="lines-code chroma"><div class="code-inner"><span class="gh"># repo1</div></td>
 			</tr></tbody>
 	</table>
 </div>
diff --git a/templates/base/markup_codepreview.tmpl b/templates/base/markup_codepreview.tmpl
index c65ab28406..a1a4f26b47 100644
--- a/templates/base/markup_codepreview.tmpl
+++ b/templates/base/markup_codepreview.tmpl
@@ -17,7 +17,7 @@
 					{{- $lineEscapeStatus := index $.LineEscapeStatus $idx -}}
 					<td class="lines-escape">{{if $lineEscapeStatus.Escaped}}<a href="#" class="toggle-escape-button btn interact-bg" title="{{if $lineEscapeStatus.HasInvisible}}{{ctx.Locale.Tr "repo.invisible_runes_line"}} {{end}}{{if $lineEscapeStatus.HasAmbiguous}}{{ctx.Locale.Tr "repo.ambiguous_runes_line"}}{{end}}"></a>{{end}}</td>
 				{{- end}}
-				<td class="lines-code chroma"><code class="code-inner">{{$line.FormattedContent}}</code></td>
+				<td class="lines-code chroma"><div class="code-inner">{{$line.FormattedContent}}</div></td>{{/* only div works, span generates incorrect HTML structure */}}
 			</tr>
 			{{- end -}}
 		</tbody>
diff --git a/web_src/css/markup/content.css b/web_src/css/markup/content.css
index 376d3030c7..d44e727a25 100644
--- a/web_src/css/markup/content.css
+++ b/web_src/css/markup/content.css
@@ -432,7 +432,7 @@
   text-align: right;
 }
 
-.markup code:not(.code-inner),
+.markup code,
 .markup tt {
   padding: 0.2em 0.4em;
   margin: 0;