mirror of
https://github.com/go-gitea/gitea
synced 2025-11-04 13:28:25 +00:00
386c1ed908
A small refactor to improve HTMLFormat, to help to prevent low-level mistakes. And fix #33141, fix #33139
62 lines
2.1 KiB
Go
62 lines
2.1 KiB
Go
// Copyright 2022 The Gitea Authors. All rights reserved.
|
|
// SPDX-License-Identifier: MIT
|
|
|
|
package math
|
|
|
|
import (
|
|
"html/template"
|
|
|
|
"code.gitea.io/gitea/modules/markup/internal"
|
|
giteaUtil "code.gitea.io/gitea/modules/util"
|
|
|
|
gast "github.com/yuin/goldmark/ast"
|
|
"github.com/yuin/goldmark/renderer"
|
|
"github.com/yuin/goldmark/util"
|
|
)
|
|
|
|
// Block render output:
|
|
// <pre class="code-block is-loading"><code class="language-math display">...</code></pre>
|
|
//
|
|
// Keep in mind that there is another "code block" render in "func (r *GlodmarkRender) highlightingRenderer"
|
|
// "highlightingRenderer" outputs the math block with extra "chroma" class:
|
|
// <pre class="code-block is-loading"><code class="chroma language-math display">...</code></pre>
|
|
//
|
|
// Special classes:
|
|
// * "is-loading": show a loading indicator
|
|
// * "display": used by JS to decide to render as a block, otherwise render as inline
|
|
|
|
// BlockRenderer represents a renderer for math Blocks
|
|
type BlockRenderer struct {
|
|
renderInternal *internal.RenderInternal
|
|
}
|
|
|
|
// NewBlockRenderer creates a new renderer for math Blocks
|
|
func NewBlockRenderer(renderInternal *internal.RenderInternal) renderer.NodeRenderer {
|
|
return &BlockRenderer{renderInternal: renderInternal}
|
|
}
|
|
|
|
// RegisterFuncs registers the renderer for math Blocks
|
|
func (r *BlockRenderer) RegisterFuncs(reg renderer.NodeRendererFuncRegisterer) {
|
|
reg.Register(KindBlock, r.renderBlock)
|
|
}
|
|
|
|
func (r *BlockRenderer) writeLines(w util.BufWriter, source []byte, n gast.Node) {
|
|
l := n.Lines().Len()
|
|
for i := 0; i < l; i++ {
|
|
line := n.Lines().At(i)
|
|
_, _ = w.Write(util.EscapeHTML(line.Value(source)))
|
|
}
|
|
}
|
|
|
|
func (r *BlockRenderer) renderBlock(w util.BufWriter, source []byte, node gast.Node, entering bool) (gast.WalkStatus, error) {
|
|
n := node.(*Block)
|
|
if entering {
|
|
code := giteaUtil.Iif(n.Inline, "", `<pre class="code-block is-loading">`) + `<code class="language-math display">`
|
|
_ = r.renderInternal.FormatWithSafeAttrs(w, template.HTML(code))
|
|
r.writeLines(w, source, n)
|
|
} else {
|
|
_, _ = w.WriteString(`</code>` + giteaUtil.Iif(n.Inline, "", `</pre>`) + "\n")
|
|
}
|
|
return gast.WalkContinue, nil
|
|
}
|