Fix review excerpt (go-gitea#18502)

Currently the "File Changed" tab of a PR is somehow broken. This is also true for the current release 1.16.0.

When you are on the "File Changed" tab, and want to look at code excerpt before or after the code changes, the layout breaks. You can test this on try.gitea.io here: https://try.gitea.io/testnotexisting/magic_enum/pulls/2/files

The problem occurs for the unified view and for the split view.

Kind of the same problem was there for commenting a line of code, this was fixed in go-gitea#18321 and go-gitea#18403.

For consistency, I changed the solution of go-gitea#18321, I removed the ``colspan`` and instead added a ``<td>``. The goal was to have code similarly with the split view.

Also the separator line in the split view was in the wrong column, this was fixed too.* more consistent unified review comment

Fix go-gitea#18516

Co-authored-by: Andrew Thornton <art27@cantab.net>

templates/repo/diff/blob_excerpt.tmpl

@@ -21,23 +21,18 @@
 			</td>
 			<td colspan="5" class="lines-code lines-code-old ">{{$inlineDiff := $.section.GetComputedInlineDiffFor $line}}<code {{if $inlineDiff.EscapeStatus.Escaped}}class="code-inner has-escaped" title="{{$.i18n.Tr "repo.line_unicode"}}"{{else}}class="code-inner"{{end}}>{{$inlineDiff.Content}}</code></td>
 		{{else}}
+			{{$inlineDiff := $.section.GetComputedInlineDiffFor $line}}
 			<td class="lines-num lines-num-old" data-line-num="{{if $line.LeftIdx}}{{$line.LeftIdx}}{{end}}"><span rel="{{if $line.LeftIdx}}diff-{{Sha1 $.fileName}}L{{$line.LeftIdx}}{{end}}"></span></td>
+			<td class="blob-excerpt lines-escape lines-escape-old">{{if and $line.LeftIdx $inlineDiff.EscapeStatus.Escaped}}<a href="" class="toggle-escape-button" title="{{$.i18n.Tr "repo.line_unicode"}}"></a>{{end}}</td>
 			<td class="blob-excerpt lines-type-marker lines-type-marker-old">{{if $line.LeftIdx}}<span class="mono" data-type-marker=""></span>{{end}}</td>
 			<td class="blob-excerpt lines-code lines-code-old halfwidth">{{/*
-				*/}}{{if $line.LeftIdx}}{{/*
-						*/}}{{$inlineDiff := $.section.GetComputedInlineDiffFor $line}}<code {{if $inlineDiff.EscapeStatus.Escaped}}class="code-inner has-escaped" title="{{$.i18n.Tr "repo.line_unicode"}}"{{else}}class="code-inner"{{end}}>{{$inlineDiff.Content}}</code>{{/*
-					*/}}{{else}}{{/*
-						*/}}<code class="code-inner"></code>{{/*
-					*/}}{{end}}{{/*
-				*/}}</td>
+				*/}}<code {{if and $line.LeftIdx $inlineDiff.EscapeStatus.Escaped}}class="code-inner has-escaped" title="{{$.i18n.Tr "repo.line_unicode"}}"{{else}}class="code-inner"{{end}}>{{if $line.LeftIdx}}{{$inlineDiff.Content}}{{end}}</code>{{/*
+			*/}}</td>
 			<td class="lines-num lines-num-new" data-line-num="{{if $line.RightIdx}}{{$line.RightIdx}}{{end}}"><span rel="{{if $line.RightIdx}}diff-{{Sha1 $.fileName}}R{{$line.RightIdx}}{{end}}"></span></td>
+			<td class="blob-excerpt lines-escape lines-escape-new">{{if and $line.RightIdx $inlineDiff.EscapeStatus.Escaped}}<a href="" class="toggle-escape-button" title="{{$.i18n.Tr "repo.line_unicode"}}"></a>{{end}}</td>
 			<td class="blob-excerpt lines-type-marker lines-type-marker-new">{{if $line.RightIdx}}<span class="mono" data-type-marker=""></span>{{end}}</td>
 			<td class="blob-excerpt lines-code lines-code-new halfwidth">{{/*
-				*/}}{{if $line.RightIdx}}{{/*
-					*/}}{{$inlineDiff := $.section.GetComputedInlineDiffFor $line}}<code {{if $inlineDiff.EscapeStatus.Escaped}}class="code-inner has-escaped" title="{{$.i18n.Tr "repo.line_unicode"}}"{{else}}class="code-inner"{{end}}>{{$inlineDiff.Content}}</code>{{/*
-				*/}}{{else}}{{/*
-					*/}}<code class="code-inner"></code>{{/*
-				*/}}{{end}}{{/*
+				*/}}<code {{if and $line.RightIdx $inlineDiff.EscapeStatus.Escaped}}class="code-inner has-escaped" title="{{$.i18n.Tr "repo.line_unicode"}}"{{else}}class="code-inner"{{end}}>{{if $line.RightIdx}}{{$inlineDiff.Content}}{{end}}</code>{{/*
 			*/}}</td>
 		{{end}}
 	</tr>
@@ -67,8 +62,10 @@
 			<td class="lines-num lines-num-old" data-line-num="{{if $line.LeftIdx}}{{$line.LeftIdx}}{{end}}"><span rel="{{if $line.LeftIdx}}diff-{{Sha1 $.fileName}}L{{$line.LeftIdx}}{{end}}"></span></td>
 			<td class="lines-num lines-num-new" data-line-num="{{if $line.RightIdx}}{{$line.RightIdx}}{{end}}"><span rel="{{if $line.RightIdx}}diff-{{Sha1 $.fileName}}R{{$line.RightIdx}}{{end}}"></span></td>
 		{{end}}
+		{{$inlineDiff := $.section.GetComputedInlineDiffFor $line}}
+		<td class="blob-excerpt lines-escape">{{if $inlineDiff.EscapeStatus.Escaped}}<a href="" class="toggle-escape-button" title="{{$.i18n.Tr "repo.line_unicode"}}"></a>{{end}}</td>
 		<td class="blob-excerpt lines-type-marker"><span class="mono" data-type-marker="{{$line.GetLineTypeMarker}}"></span></td>
-		<td class="blob-excerpt lines-code{{if (not $line.RightIdx)}} lines-code-old{{end}}">{{$inlineDiff := $.section.GetComputedInlineDiffFor $line}}<code {{if $inlineDiff.EscapeStatus.Escaped}}class="code-inner has-escaped" title="{{$.i18n.Tr "repo.line_unicode"}}"{{else}}class="code-inner"{{end}}>{{$inlineDiff.Content}}</code></td>
+		<td class="blob-excerpt lines-code{{if (not $line.RightIdx)}} lines-code-old{{end}}"><code {{if $inlineDiff.EscapeStatus.Escaped}}class="code-inner has-escaped" title="{{$.i18n.Tr "repo.line_unicode"}}"{{else}}class="code-inner"{{end}}>{{$inlineDiff.Content}}</code></td>
 	</tr>
 	{{end}}
 {{end}}

web_src/js/features/repo-issue.js

@@ -505,7 +505,9 @@ export function initRepoPullRequestReview() {
             <td class="lines-type-marker"></td>
             <td class="add-comment-right"></td>
           ` : `
-            <td colspan="3" class="lines-num"></td>
+            <td class="lines-num"></td>
+            <td class="lines-num"></td>
+            <td class="lines-escape"></td>
             <td class="add-comment-left add-comment-right" colspan="2"></td>
           `}
         </tr>`);

web_src/less/_repository.less

@@ -3186,7 +3186,7 @@ td.blob-excerpt {
   background: var(--color-diff-inactive);
 }
 
-.code-diff-split tbody tr td:nth-child(4) {
+.code-diff-split tbody tr td:nth-child(5) {
   border-left: 1px solid var(--color-secondary);
 }