Diff color enhancements, add line number background (#30670)

1. Bring back the background on line numbers. This feature was lost a
long time ago.

<img width="457" alt="Screenshot 2024-04-24 at 01 36 09"
src="https://github.com/go-gitea/gitea/assets/115237/76a7f5a9-c22a-4c72-9f0a-ebf16a66513e">
<img width="473" alt="Screenshot 2024-04-24 at 01 22 47"
src="https://github.com/go-gitea/gitea/assets/115237/eef06cf2-f1b9-40e3-947d-dd5852ec12a3">
<img width="457" alt="Screenshot 2024-04-24 at 02 13 18"
src="https://github.com/go-gitea/gitea/assets/115237/59e317d4-76a7-468c-8a19-10d88c675cc3">
<img width="459" alt="Screenshot 2024-04-24 at 01 23 21"
src="https://github.com/go-gitea/gitea/assets/115237/f1a46f8d-8846-4d78-a9d7-8b7dc18ac6e4">

2. Expanded lines background is now full-line, including line numbers:

<img width="1303" alt="Screenshot 2024-04-24 at 01 37 12"
src="https://github.com/go-gitea/gitea/assets/115237/271eefe2-0869-424e-93fb-ccd8adc87806">

3. Sort affected colors alphabetically in the CSS

Fixes #14603

1 files changed, 11 insertions, 11 deletions

diff --git a/templates/repo/diff/blob_excerpt.tmpl b/templates/repo/diff/blob_excerpt.tmpl
index 8312b5d913..a80abe263f 100644
--- a/templates/repo/diff/blob_excerpt.tmpl
+++ b/templates/repo/diff/blob_excerpt.tmpl
@@ -1,6 +1,6 @@
 {{if $.IsSplitStyle}}
 	{{range $k, $line := $.section.Lines}}
-	<tr class="{{.GetHTMLDiffLineType}}-code nl-{{$k}} ol-{{$k}}">
+	<tr class="{{.GetHTMLDiffLineType}}-code nl-{{$k}} ol-{{$k}} line-expanded">
 		{{if eq .GetType 4}}
 			<td class="lines-num lines-num-old" data-line-num="{{if $line.LeftIdx}}{{$line.LeftIdx}}{{end}}">
 				<div class="tw-flex">
@@ -26,17 +26,17 @@
 		{{else}}
 			{{$inlineDiff := $.section.GetComputedInlineDiffFor $line ctx.Locale}}
 			<td class="lines-num lines-num-old" data-line-num="{{if $line.LeftIdx}}{{$line.LeftIdx}}{{end}}"><span rel="{{if $line.LeftIdx}}diff-{{$.FileNameHash}}L{{$line.LeftIdx}}{{end}}"></span></td>
-			<td class="blob-excerpt lines-escape lines-escape-old">{{if and $line.LeftIdx $inlineDiff.EscapeStatus.Escaped}}<button class="toggle-escape-button btn interact-bg" title="{{template "repo/diff/escape_title" dict "diff" $inlineDiff}}"></button>{{end}}</td>
-			<td class="blob-excerpt lines-type-marker lines-type-marker-old">{{if $line.LeftIdx}}<span class="tw-font-mono" data-type-marker=""></span>{{end}}</td>
-			<td class="blob-excerpt lines-code lines-code-old">{{/*
+			<td class="lines-escape lines-escape-old">{{if and $line.LeftIdx $inlineDiff.EscapeStatus.Escaped}}<button class="toggle-escape-button btn interact-bg" title="{{template "repo/diff/escape_title" dict "diff" $inlineDiff}}"></button>{{end}}</td>
+			<td class="lines-type-marker lines-type-marker-old">{{if $line.LeftIdx}}<span class="tw-font-mono" data-type-marker=""></span>{{end}}</td>
+			<td class="lines-code lines-code-old">{{/*
 				*/}}{{if $line.LeftIdx}}{{template "repo/diff/section_code" dict "diff" $inlineDiff}}{{else}}{{/*
 					*/}}<code class="code-inner"></code>{{/*
 				*/}}{{end}}{{/*
 			*/}}</td>
 			<td class="lines-num lines-num-new" data-line-num="{{if $line.RightIdx}}{{$line.RightIdx}}{{end}}"><span rel="{{if $line.RightIdx}}diff-{{$.FileNameHash}}R{{$line.RightIdx}}{{end}}"></span></td>
-			<td class="blob-excerpt lines-escape lines-escape-new">{{if and $line.RightIdx $inlineDiff.EscapeStatus.Escaped}}<button class="toggle-escape-button btn interact-bg" title="{{template "repo/diff/escape_title" dict "diff" $inlineDiff}}"></button>{{end}}</td>
-			<td class="blob-excerpt lines-type-marker lines-type-marker-new">{{if $line.RightIdx}}<span class="tw-font-mono" data-type-marker=""></span>{{end}}</td>
-			<td class="blob-excerpt lines-code lines-code-new">{{/*
+			<td class="lines-escape lines-escape-new">{{if and $line.RightIdx $inlineDiff.EscapeStatus.Escaped}}<button class="toggle-escape-button btn interact-bg" title="{{template "repo/diff/escape_title" dict "diff" $inlineDiff}}"></button>{{end}}</td>
+			<td class="lines-type-marker lines-type-marker-new">{{if $line.RightIdx}}<span class="tw-font-mono" data-type-marker=""></span>{{end}}</td>
+			<td class="lines-code lines-code-new">{{/*
 				*/}}{{if $line.RightIdx}}{{template "repo/diff/section_code" dict "diff" $inlineDiff}}{{else}}{{/*
 					*/}}<code class="code-inner"></code>{{/*
 				*/}}{{end}}{{/*
@@ -46,7 +46,7 @@
 	{{end}}
 {{else}}
 	{{range $k, $line := $.section.Lines}}
-	<tr class="{{.GetHTMLDiffLineType}}-code nl-{{$k}} ol-{{$k}}">
+	<tr class="{{.GetHTMLDiffLineType}}-code nl-{{$k}} ol-{{$k}} line-expanded">
 		{{if eq .GetType 4}}
 			<td colspan="2" class="lines-num">
 				<div class="tw-flex">
@@ -72,9 +72,9 @@
 			<td class="lines-num lines-num-new" data-line-num="{{if $line.RightIdx}}{{$line.RightIdx}}{{end}}"><span rel="{{if $line.RightIdx}}diff-{{$.FileNameHash}}R{{$line.RightIdx}}{{end}}"></span></td>
 		{{end}}
 		{{$inlineDiff := $.section.GetComputedInlineDiffFor $line ctx.Locale}}
-		<td class="blob-excerpt lines-escape">{{if $inlineDiff.EscapeStatus.Escaped}}<button class="toggle-escape-button btn interact-bg" title="{{template "repo/diff/escape_title" dict "diff" $inlineDiff}}"></button>{{end}}</td>
-		<td class="blob-excerpt lines-type-marker"><span class="tw-font-mono" data-type-marker="{{$line.GetLineTypeMarker}}"></span></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="{{template "repo/diff/escape_title" dict "diff" $inlineDiff}}"{{else}}class="code-inner"{{end}}>{{$inlineDiff.Content}}</code></td>
+		<td class="lines-escape">{{if $inlineDiff.EscapeStatus.Escaped}}<button class="toggle-escape-button btn interact-bg" title="{{template "repo/diff/escape_title" dict "diff" $inlineDiff}}"></button>{{end}}</td>
+		<td class="lines-type-marker"><span class="tw-font-mono" data-type-marker="{{$line.GetLineTypeMarker}}"></span></td>
+		<td class="lines-code{{if (not $line.RightIdx)}} lines-code-old{{end}}"><code {{if $inlineDiff.EscapeStatus.Escaped}}class="code-inner has-escaped" title="{{template "repo/diff/escape_title" dict "diff" $inlineDiff}}"{{else}}class="code-inner"{{end}}>{{$inlineDiff.Content}}</code></td>
 	</tr>
 	{{end}}
 {{end}}