52 lines
1.3 KiB
Go
52 lines
1.3 KiB
Go
// Copyright 2020 The Gitea Authors. All rights reserved.
|
|
// SPDX-License-Identifier: MIT
|
|
|
|
package svg
|
|
|
|
import (
|
|
"fmt"
|
|
"html/template"
|
|
"regexp"
|
|
"strings"
|
|
|
|
"code.gitea.io/gitea/modules/html"
|
|
)
|
|
|
|
var (
|
|
// SVGs contains discovered SVGs
|
|
SVGs map[string]string
|
|
|
|
widthRe = regexp.MustCompile(`width="[0-9]+?"`)
|
|
heightRe = regexp.MustCompile(`height="[0-9]+?"`)
|
|
)
|
|
|
|
const defaultSize = 16
|
|
|
|
// Init discovers SVGs and populates the `SVGs` variable
|
|
func Init() {
|
|
SVGs = Discover()
|
|
|
|
// Remove `xmlns` because inline SVG does not need it
|
|
r := regexp.MustCompile(`(<svg\b[^>]*?)\s+xmlns="[^"]*"`)
|
|
for name, svg := range SVGs {
|
|
SVGs[name] = r.ReplaceAllString(svg, "$1")
|
|
}
|
|
}
|
|
|
|
// Render render icons - arguments icon name (string), size (int), class (string)
|
|
func RenderHTML(icon string, others ...interface{}) template.HTML {
|
|
size, class := html.ParseSizeAndClass(defaultSize, "", others...)
|
|
|
|
if svgStr, ok := SVGs[icon]; ok {
|
|
if size != defaultSize {
|
|
svgStr = widthRe.ReplaceAllString(svgStr, fmt.Sprintf(`width="%d"`, size))
|
|
svgStr = heightRe.ReplaceAllString(svgStr, fmt.Sprintf(`height="%d"`, size))
|
|
}
|
|
if class != "" {
|
|
svgStr = strings.Replace(svgStr, `class="`, fmt.Sprintf(`class="%s `, class), 1)
|
|
}
|
|
return template.HTML(svgStr)
|
|
}
|
|
return template.HTML("")
|
|
}
|