mirror of
https://github.com/go-gitea/gitea
synced 2024-11-09 11:44:27 +00:00
99 lines
3.2 KiB
Go
99 lines
3.2 KiB
Go
// Copyright 2024 The Gitea Authors. All rights reserved.
|
|
// SPDX-License-Identifier: MIT
|
|
|
|
package markdown
|
|
|
|
import (
|
|
"strings"
|
|
|
|
"code.gitea.io/gitea/modules/svg"
|
|
|
|
"github.com/yuin/goldmark/ast"
|
|
"github.com/yuin/goldmark/text"
|
|
"github.com/yuin/goldmark/util"
|
|
"golang.org/x/text/cases"
|
|
"golang.org/x/text/language"
|
|
)
|
|
|
|
// renderAttention renders a quote marked with i.e. "> **Note**" or "> **Warning**" with a corresponding svg
|
|
func (r *HTMLRenderer) renderAttention(w util.BufWriter, source []byte, node ast.Node, entering bool) (ast.WalkStatus, error) {
|
|
if entering {
|
|
n := node.(*Attention)
|
|
var octiconName string
|
|
switch n.AttentionType {
|
|
case "tip":
|
|
octiconName = "light-bulb"
|
|
case "important":
|
|
octiconName = "report"
|
|
case "warning":
|
|
octiconName = "alert"
|
|
case "caution":
|
|
octiconName = "stop"
|
|
default: // including "note"
|
|
octiconName = "info"
|
|
}
|
|
_, _ = w.WriteString(string(svg.RenderHTML("octicon-"+octiconName, 16, "attention-icon attention-"+n.AttentionType)))
|
|
}
|
|
return ast.WalkContinue, nil
|
|
}
|
|
|
|
func (g *ASTTransformer) transformBlockquote(v *ast.Blockquote, reader text.Reader) (ast.WalkStatus, error) {
|
|
// We only want attention blockquotes when the AST looks like:
|
|
// > Text("[") Text("!TYPE") Text("]")
|
|
|
|
// grab these nodes and make sure we adhere to the attention blockquote structure
|
|
firstParagraph := v.FirstChild()
|
|
g.applyElementDir(firstParagraph)
|
|
if firstParagraph.ChildCount() < 3 {
|
|
return ast.WalkContinue, nil
|
|
}
|
|
node1, ok := firstParagraph.FirstChild().(*ast.Text)
|
|
if !ok {
|
|
return ast.WalkContinue, nil
|
|
}
|
|
node2, ok := node1.NextSibling().(*ast.Text)
|
|
if !ok {
|
|
return ast.WalkContinue, nil
|
|
}
|
|
node3, ok := node2.NextSibling().(*ast.Text)
|
|
if !ok {
|
|
return ast.WalkContinue, nil
|
|
}
|
|
val1 := string(node1.Segment.Value(reader.Source()))
|
|
val2 := string(node2.Segment.Value(reader.Source()))
|
|
val3 := string(node3.Segment.Value(reader.Source()))
|
|
if val1 != "[" || val3 != "]" || !strings.HasPrefix(val2, "!") {
|
|
return ast.WalkContinue, nil
|
|
}
|
|
|
|
// grab attention type from markdown source
|
|
attentionType := strings.ToLower(val2[1:])
|
|
if !g.attentionTypes.Contains(attentionType) {
|
|
return ast.WalkContinue, nil
|
|
}
|
|
|
|
// color the blockquote
|
|
v.SetAttributeString("class", []byte("attention-header attention-"+attentionType))
|
|
|
|
// create an emphasis to make it bold
|
|
attentionParagraph := ast.NewParagraph()
|
|
g.applyElementDir(attentionParagraph)
|
|
emphasis := ast.NewEmphasis(2)
|
|
emphasis.SetAttributeString("class", []byte("attention-"+attentionType))
|
|
|
|
attentionAstString := ast.NewString([]byte(cases.Title(language.English).String(attentionType)))
|
|
|
|
// replace the ![TYPE] with a dedicated paragraph of icon+Type
|
|
emphasis.AppendChild(emphasis, attentionAstString)
|
|
attentionParagraph.AppendChild(attentionParagraph, NewAttention(attentionType))
|
|
attentionParagraph.AppendChild(attentionParagraph, emphasis)
|
|
firstParagraph.Parent().InsertBefore(firstParagraph.Parent(), firstParagraph, attentionParagraph)
|
|
firstParagraph.RemoveChild(firstParagraph, node1)
|
|
firstParagraph.RemoveChild(firstParagraph, node2)
|
|
firstParagraph.RemoveChild(firstParagraph, node3)
|
|
if firstParagraph.ChildCount() == 0 {
|
|
firstParagraph.Parent().RemoveChild(firstParagraph.Parent(), firstParagraph)
|
|
}
|
|
return ast.WalkContinue, nil
|
|
}
|