Add -webkit-user-select: none; to support Safari

CIAvash · alecthomas · commit 0e2db4474436 · 2023-01-11T02:00:54.000+11:00
diff --git a/formatters/html/html.go b/formatters/html/html.go
@@ -513,7 +513,7 @@ func (f *Formatter) styleToCSS(style *chroma.Style) map[chroma.TokenType]string
 	if f.wrapLongLines {
 		classes[chroma.PreWrapper] += `white-space: pre-wrap; word-break: break-word;`
 	}
-	lineNumbersStyle := `white-space: pre; user-select: none; margin-right: 0.4em; padding: 0 0.4em 0 0.4em;`
+	lineNumbersStyle := `white-space: pre; -webkit-user-select: none; user-select: none; margin-right: 0.4em; padding: 0 0.4em 0 0.4em;`
 	// All rules begin with default rules followed by user provided rules
 	classes[chroma.Line] = `display: flex;` + classes[chroma.Line]
 	classes[chroma.LineNumbers] = lineNumbersStyle + classes[chroma.LineNumbers]

Original file line number	Diff line number	Diff line change
`@@ -513,7 +513,7 @@ func (f Formatter) styleToCSS(style chroma.Style) map[chroma.TokenType]string`
`513`	`513`	`if f.wrapLongLines {`
`514`	`514`	classes[chroma.PreWrapper] += `white-space: pre-wrap; word-break: break-word;`
`515`	`515`	`}`
`516`		- lineNumbersStyle := `white-space: pre; user-select: none; margin-right: 0.4em; padding: 0 0.4em 0 0.4em;`
	`516`	+ lineNumbersStyle := `white-space: pre; -webkit-user-select: none; user-select: none; margin-right: 0.4em; padding: 0 0.4em 0 0.4em;`
`517`	`517`	`// All rules begin with default rules followed by user provided rules`
`518`	`518`	classes[chroma.Line] = `display: flex;` + classes[chroma.Line]
`519`	`519`	`classes[chroma.LineNumbers] = lineNumbersStyle + classes[chroma.LineNumbers]`