mirror of
https://codeberg.org/forgejo/forgejo.git
synced 2024-11-10 20:59:31 +01:00
Refactor markdown render (#30139)
Only split the file into small ones (and rename AttentionTypes to attentionTypes) (cherry picked from commit 71706126b56616750a65290460fd211b9b8449da) Signed-off-by: Gergely Nagy <forgejo@gergo.csillger.hu> Conflicts: - modules/markup/markdown/goldmark.go - modules/markup/markdown/transform_blockquote.go Conflicts were resolved by favouring the Forgejo implementation: I copied the Forgejo code to the same place Gitea copied them to, and adjusted the imports accordingly. Apart from conflict resolution, this also moves `applyElementDir` from a local func in `goldmark.Transform` to a method on `*ASTTransformer`, to make it callable from the extracted functions.
This commit is contained in:
wxiaoguang
Gergely Nagy
parent
7d0ea92da4
commit
f692069616
7 changed files with 358 additions and 251 deletions
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@ -4,17 +4,12 @@
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package markdown
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import (
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"bytes"
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"fmt"
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"regexp"
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"slices"
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"strings"
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"code.gitea.io/gitea/modules/container"
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"code.gitea.io/gitea/modules/markup"
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"code.gitea.io/gitea/modules/markup/common"
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"code.gitea.io/gitea/modules/setting"
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giteautil "code.gitea.io/gitea/modules/util"
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"github.com/yuin/goldmark/ast"
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east "github.com/yuin/goldmark/extension/ast"
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@ -30,6 +25,12 @@ var byteMailto = []byte("mailto:")
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// ASTTransformer is a default transformer of the goldmark tree.
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type ASTTransformer struct{}
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func (g *ASTTransformer) applyElementDir(n ast.Node) {
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if markup.DefaultProcessorHelper.ElementDir != "" {
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n.SetAttributeString("dir", []byte(markup.DefaultProcessorHelper.ElementDir))
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}
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}
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// Transform transforms the given AST tree.
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func (g *ASTTransformer) Transform(node *ast.Document, reader text.Reader, pc parser.Context) {
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firstChild := node.FirstChild()
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@ -46,12 +47,6 @@ func (g *ASTTransformer) Transform(node *ast.Document, reader text.Reader, pc pa
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tocMode = rc.TOC
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}
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applyElementDir := func(n ast.Node) {
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if markup.DefaultProcessorHelper.ElementDir != "" {
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n.SetAttributeString("dir", []byte(markup.DefaultProcessorHelper.ElementDir))
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}
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}
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_ = ast.Walk(node, func(n ast.Node, entering bool) (ast.WalkStatus, error) {
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if !entering {
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return ast.WalkContinue, nil
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@ -59,135 +54,15 @@ func (g *ASTTransformer) Transform(node *ast.Document, reader text.Reader, pc pa
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switch v := n.(type) {
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case *ast.Heading:
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for _, attr := range v.Attributes() {
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if _, ok := attr.Value.([]byte); !ok {
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v.SetAttribute(attr.Name, []byte(fmt.Sprintf("%v", attr.Value)))
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}
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}
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txt := n.Text(reader.Source())
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header := markup.Header{
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Text: util.BytesToReadOnlyString(txt),
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Level: v.Level,
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}
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if id, found := v.AttributeString("id"); found {
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header.ID = util.BytesToReadOnlyString(id.([]byte))
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}
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tocList = append(tocList, header)
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applyElementDir(v)
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g.transformHeading(ctx, v, reader, &tocList)
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case *ast.Paragraph:
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applyElementDir(v)
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g.applyElementDir(v)
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case *ast.Image:
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// Images need two things:
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//
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// 1. Their src needs to munged to be a real value
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// 2. If they're not wrapped with a link they need a link wrapper
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// Check if the destination is a real link
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if len(v.Destination) > 0 && !markup.IsLink(v.Destination) {
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v.Destination = []byte(giteautil.URLJoin(
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ctx.Links.ResolveMediaLink(ctx.IsWiki),
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strings.TrimLeft(string(v.Destination), "/"),
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))
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}
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parent := n.Parent()
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// Create a link around image only if parent is not already a link
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if _, ok := parent.(*ast.Link); !ok && parent != nil {
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next := n.NextSibling()
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// Create a link wrapper
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wrap := ast.NewLink()
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wrap.Destination = v.Destination
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wrap.Title = v.Title
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wrap.SetAttributeString("target", []byte("_blank"))
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// Duplicate the current image node
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image := ast.NewImage(ast.NewLink())
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image.Destination = v.Destination
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image.Title = v.Title
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for _, attr := range v.Attributes() {
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image.SetAttribute(attr.Name, attr.Value)
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}
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for child := v.FirstChild(); child != nil; {
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next := child.NextSibling()
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image.AppendChild(image, child)
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child = next
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}
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// Append our duplicate image to the wrapper link
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wrap.AppendChild(wrap, image)
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// Wire in the next sibling
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wrap.SetNextSibling(next)
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// Replace the current node with the wrapper link
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parent.ReplaceChild(parent, n, wrap)
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// But most importantly ensure the next sibling is still on the old image too
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v.SetNextSibling(next)
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}
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g.transformImage(ctx, v, reader)
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case *ast.Link:
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// Links need their href to munged to be a real value
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link := v.Destination
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// Do not process the link if it's not a link, starts with an hashtag
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// (indicating it's an anchor link), starts with `mailto:` or any of the
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// custom markdown URLs.
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processLink := len(link) > 0 && !markup.IsLink(link) &&
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link[0] != '#' && !bytes.HasPrefix(link, byteMailto) &&
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!slices.ContainsFunc(setting.Markdown.CustomURLSchemes, func(s string) bool {
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return bytes.HasPrefix(link, []byte(s+":"))
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})
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if processLink {
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var base string
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if ctx.IsWiki {
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base = ctx.Links.WikiLink()
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} else if ctx.Links.HasBranchInfo() {
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base = ctx.Links.SrcLink()
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} else {
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base = ctx.Links.Base
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}
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link = []byte(giteautil.URLJoin(base, string(link)))
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}
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if len(link) > 0 && link[0] == '#' {
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link = []byte("#user-content-" + string(link)[1:])
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}
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v.Destination = link
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g.transformLink(ctx, v, reader)
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case *ast.List:
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if v.HasChildren() {
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children := make([]ast.Node, 0, v.ChildCount())
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child := v.FirstChild()
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for child != nil {
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children = append(children, child)
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child = child.NextSibling()
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}
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v.RemoveChildren(v)
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for _, child := range children {
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listItem := child.(*ast.ListItem)
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if !child.HasChildren() || !child.FirstChild().HasChildren() {
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v.AppendChild(v, child)
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continue
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}
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taskCheckBox, ok := child.FirstChild().FirstChild().(*east.TaskCheckBox)
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if !ok {
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v.AppendChild(v, child)
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continue
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}
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newChild := NewTaskCheckBoxListItem(listItem)
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newChild.IsChecked = taskCheckBox.IsChecked
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newChild.SetAttributeString("class", []byte("task-list-item"))
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segments := newChild.FirstChild().Lines()
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if segments.Len() > 0 {
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segment := segments.At(0)
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newChild.SourcePosition = rc.metaLength + segment.Start
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}
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v.AppendChild(v, newChild)
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}
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}
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applyElementDir(v)
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g.transformList(ctx, v, reader, rc)
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case *ast.Text:
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if v.SoftLineBreak() && !v.HardLineBreak() {
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if ctx.Metas["mode"] != "document" {
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@ -197,10 +72,7 @@ func (g *ASTTransformer) Transform(node *ast.Document, reader text.Reader, pc pa
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}
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}
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case *ast.CodeSpan:
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colorContent := n.Text(reader.Source())
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if matchColor(strings.ToLower(string(colorContent))) {
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v.AppendChild(v, NewColorPreview(colorContent))
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}
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g.transformCodeSpan(ctx, v, reader)
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}
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return ast.WalkContinue, nil
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})
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@ -222,50 +94,6 @@ func (g *ASTTransformer) Transform(node *ast.Document, reader text.Reader, pc pa
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}
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}
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type prefixedIDs struct {
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values container.Set[string]
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}
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// Generate generates a new element id.
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func (p *prefixedIDs) Generate(value []byte, kind ast.NodeKind) []byte {
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dft := []byte("id")
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if kind == ast.KindHeading {
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dft = []byte("heading")
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}
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return p.GenerateWithDefault(value, dft)
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}
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// Generate generates a new element id.
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func (p *prefixedIDs) GenerateWithDefault(value, dft []byte) []byte {
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result := common.CleanValue(value)
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if len(result) == 0 {
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result = dft
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}
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if !bytes.HasPrefix(result, []byte("user-content-")) {
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result = append([]byte("user-content-"), result...)
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}
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if p.values.Add(util.BytesToReadOnlyString(result)) {
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return result
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}
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for i := 1; ; i++ {
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newResult := fmt.Sprintf("%s-%d", result, i)
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if p.values.Add(newResult) {
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return []byte(newResult)
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}
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}
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}
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// Put puts a given element id to the used ids table.
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func (p *prefixedIDs) Put(value []byte) {
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p.values.Add(util.BytesToReadOnlyString(value))
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}
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func newPrefixedIDs() *prefixedIDs {
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return &prefixedIDs{
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values: make(container.Set[string]),
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}
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}
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// NewHTMLRenderer creates a HTMLRenderer to render
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// in the gitea form.
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func NewHTMLRenderer(opts ...html.Option) renderer.NodeRenderer {
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@ -295,38 +123,6 @@ func (r *HTMLRenderer) RegisterFuncs(reg renderer.NodeRendererFuncRegisterer) {
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reg.Register(east.KindTaskCheckBox, r.renderTaskCheckBox)
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}
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// renderCodeSpan renders CodeSpan elements (like goldmark upstream does) but also renders ColorPreview elements.
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// See #21474 for reference
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func (r *HTMLRenderer) renderCodeSpan(w util.BufWriter, source []byte, n ast.Node, entering bool) (ast.WalkStatus, error) {
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if entering {
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if n.Attributes() != nil {
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_, _ = w.WriteString("<code")
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html.RenderAttributes(w, n, html.CodeAttributeFilter)
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_ = w.WriteByte('>')
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} else {
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_, _ = w.WriteString("<code>")
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}
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for c := n.FirstChild(); c != nil; c = c.NextSibling() {
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switch v := c.(type) {
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case *ast.Text:
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segment := v.Segment
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value := segment.Value(source)
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if bytes.HasSuffix(value, []byte("\n")) {
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r.Writer.RawWrite(w, value[:len(value)-1])
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r.Writer.RawWrite(w, []byte(" "))
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} else {
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r.Writer.RawWrite(w, value)
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}
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case *ColorPreview:
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_, _ = w.WriteString(fmt.Sprintf(`<span class="color-preview" style="background-color: %v"></span>`, string(v.Color)))
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}
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}
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return ast.WalkSkipChildren, nil
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}
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_, _ = w.WriteString("</code>")
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return ast.WalkContinue, nil
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}
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func (r *HTMLRenderer) renderDocument(w util.BufWriter, source []byte, node ast.Node, entering bool) (ast.WalkStatus, error) {
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n := node.(*ast.Document)
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@ -415,38 +211,3 @@ func (r *HTMLRenderer) renderIcon(w util.BufWriter, source []byte, node ast.Node
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return ast.WalkContinue, nil
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}
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func (r *HTMLRenderer) renderTaskCheckBoxListItem(w util.BufWriter, source []byte, node ast.Node, entering bool) (ast.WalkStatus, error) {
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n := node.(*TaskCheckBoxListItem)
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if entering {
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if n.Attributes() != nil {
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_, _ = w.WriteString("<li")
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html.RenderAttributes(w, n, html.ListItemAttributeFilter)
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_ = w.WriteByte('>')
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} else {
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_, _ = w.WriteString("<li>")
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}
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fmt.Fprintf(w, `<input type="checkbox" disabled="" data-source-position="%d"`, n.SourcePosition)
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if n.IsChecked {
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_, _ = w.WriteString(` checked=""`)
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}
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if r.XHTML {
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_, _ = w.WriteString(` />`)
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} else {
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_ = w.WriteByte('>')
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}
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fc := n.FirstChild()
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if fc != nil {
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if _, ok := fc.(*ast.TextBlock); !ok {
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_ = w.WriteByte('\n')
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}
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}
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} else {
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_, _ = w.WriteString("</li>\n")
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}
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return ast.WalkContinue, nil
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}
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func (r *HTMLRenderer) renderTaskCheckBox(w util.BufWriter, source []byte, node ast.Node, entering bool) (ast.WalkStatus, error) {
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return ast.WalkContinue, nil
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}
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59
modules/markup/markdown/prefixed_id.go
Normal file
59
modules/markup/markdown/prefixed_id.go
Normal file
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@ -0,0 +1,59 @@
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// Copyright 2024 The Gitea Authors. All rights reserved.
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// SPDX-License-Identifier: MIT
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package markdown
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import (
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"bytes"
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"fmt"
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"code.gitea.io/gitea/modules/container"
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"code.gitea.io/gitea/modules/markup/common"
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"github.com/yuin/goldmark/ast"
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"github.com/yuin/goldmark/util"
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)
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type prefixedIDs struct {
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values container.Set[string]
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}
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// Generate generates a new element id.
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func (p *prefixedIDs) Generate(value []byte, kind ast.NodeKind) []byte {
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dft := []byte("id")
|
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if kind == ast.KindHeading {
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dft = []byte("heading")
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}
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return p.GenerateWithDefault(value, dft)
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}
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// GenerateWithDefault generates a new element id.
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func (p *prefixedIDs) GenerateWithDefault(value, dft []byte) []byte {
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result := common.CleanValue(value)
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if len(result) == 0 {
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result = dft
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}
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if !bytes.HasPrefix(result, []byte("user-content-")) {
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result = append([]byte("user-content-"), result...)
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}
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if p.values.Add(util.BytesToReadOnlyString(result)) {
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return result
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}
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for i := 1; ; i++ {
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newResult := fmt.Sprintf("%s-%d", result, i)
|
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if p.values.Add(newResult) {
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return []byte(newResult)
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}
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}
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}
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// Put puts a given element id to the used ids table.
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func (p *prefixedIDs) Put(value []byte) {
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p.values.Add(util.BytesToReadOnlyString(value))
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}
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|
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func newPrefixedIDs() *prefixedIDs {
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return &prefixedIDs{
|
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values: make(container.Set[string]),
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}
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}
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56
modules/markup/markdown/transform_codespan.go
Normal file
56
modules/markup/markdown/transform_codespan.go
Normal file
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@ -0,0 +1,56 @@
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// Copyright 2024 The Gitea Authors. All rights reserved.
|
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// SPDX-License-Identifier: MIT
|
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|
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package markdown
|
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|
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import (
|
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"bytes"
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"fmt"
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"strings"
|
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|
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"code.gitea.io/gitea/modules/markup"
|
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|
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"github.com/yuin/goldmark/ast"
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"github.com/yuin/goldmark/renderer/html"
|
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"github.com/yuin/goldmark/text"
|
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"github.com/yuin/goldmark/util"
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)
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|
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// renderCodeSpan renders CodeSpan elements (like goldmark upstream does) but also renders ColorPreview elements.
|
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// See #21474 for reference
|
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func (r *HTMLRenderer) renderCodeSpan(w util.BufWriter, source []byte, n ast.Node, entering bool) (ast.WalkStatus, error) {
|
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if entering {
|
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if n.Attributes() != nil {
|
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_, _ = w.WriteString("<code")
|
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html.RenderAttributes(w, n, html.CodeAttributeFilter)
|
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_ = w.WriteByte('>')
|
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} else {
|
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_, _ = w.WriteString("<code>")
|
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}
|
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for c := n.FirstChild(); c != nil; c = c.NextSibling() {
|
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switch v := c.(type) {
|
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case *ast.Text:
|
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segment := v.Segment
|
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value := segment.Value(source)
|
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if bytes.HasSuffix(value, []byte("\n")) {
|
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r.Writer.RawWrite(w, value[:len(value)-1])
|
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r.Writer.RawWrite(w, []byte(" "))
|
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} else {
|
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r.Writer.RawWrite(w, value)
|
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}
|
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case *ColorPreview:
|
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_, _ = w.WriteString(fmt.Sprintf(`<span class="color-preview" style="background-color: %v"></span>`, string(v.Color)))
|
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}
|
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}
|
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return ast.WalkSkipChildren, nil
|
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}
|
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_, _ = w.WriteString("</code>")
|
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return ast.WalkContinue, nil
|
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}
|
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|
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func (g *ASTTransformer) transformCodeSpan(ctx *markup.RenderContext, v *ast.CodeSpan, reader text.Reader) {
|
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colorContent := v.Text(reader.Source())
|
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if matchColor(strings.ToLower(string(colorContent))) {
|
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v.AppendChild(v, NewColorPreview(colorContent))
|
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}
|
||||
}
|
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32
modules/markup/markdown/transform_heading.go
Normal file
32
modules/markup/markdown/transform_heading.go
Normal file
|
|
@ -0,0 +1,32 @@
|
|||
// Copyright 2024 The Gitea Authors. All rights reserved.
|
||||
// SPDX-License-Identifier: MIT
|
||||
|
||||
package markdown
|
||||
|
||||
import (
|
||||
"fmt"
|
||||
|
||||
"code.gitea.io/gitea/modules/markup"
|
||||
|
||||
"github.com/yuin/goldmark/ast"
|
||||
"github.com/yuin/goldmark/text"
|
||||
"github.com/yuin/goldmark/util"
|
||||
)
|
||||
|
||||
func (g *ASTTransformer) transformHeading(ctx *markup.RenderContext, v *ast.Heading, reader text.Reader, tocList *[]markup.Header) {
|
||||
for _, attr := range v.Attributes() {
|
||||
if _, ok := attr.Value.([]byte); !ok {
|
||||
v.SetAttribute(attr.Name, []byte(fmt.Sprintf("%v", attr.Value)))
|
||||
}
|
||||
}
|
||||
txt := v.Text(reader.Source())
|
||||
header := markup.Header{
|
||||
Text: util.BytesToReadOnlyString(txt),
|
||||
Level: v.Level,
|
||||
}
|
||||
if id, found := v.AttributeString("id"); found {
|
||||
header.ID = util.BytesToReadOnlyString(id.([]byte))
|
||||
}
|
||||
*tocList = append(*tocList, header)
|
||||
g.applyElementDir(v)
|
||||
}
|
||||
66
modules/markup/markdown/transform_image.go
Normal file
66
modules/markup/markdown/transform_image.go
Normal file
|
|
@ -0,0 +1,66 @@
|
|||
// Copyright 2024 The Gitea Authors. All rights reserved.
|
||||
// SPDX-License-Identifier: MIT
|
||||
|
||||
package markdown
|
||||
|
||||
import (
|
||||
"strings"
|
||||
|
||||
"code.gitea.io/gitea/modules/markup"
|
||||
giteautil "code.gitea.io/gitea/modules/util"
|
||||
|
||||
"github.com/yuin/goldmark/ast"
|
||||
"github.com/yuin/goldmark/text"
|
||||
)
|
||||
|
||||
func (g *ASTTransformer) transformImage(ctx *markup.RenderContext, v *ast.Image, reader text.Reader) {
|
||||
// Images need two things:
|
||||
//
|
||||
// 1. Their src needs to munged to be a real value
|
||||
// 2. If they're not wrapped with a link they need a link wrapper
|
||||
|
||||
// Check if the destination is a real link
|
||||
if len(v.Destination) > 0 && !markup.IsLink(v.Destination) {
|
||||
v.Destination = []byte(giteautil.URLJoin(
|
||||
ctx.Links.ResolveMediaLink(ctx.IsWiki),
|
||||
strings.TrimLeft(string(v.Destination), "/"),
|
||||
))
|
||||
}
|
||||
|
||||
parent := v.Parent()
|
||||
// Create a link around image only if parent is not already a link
|
||||
if _, ok := parent.(*ast.Link); !ok && parent != nil {
|
||||
next := v.NextSibling()
|
||||
|
||||
// Create a link wrapper
|
||||
wrap := ast.NewLink()
|
||||
wrap.Destination = v.Destination
|
||||
wrap.Title = v.Title
|
||||
wrap.SetAttributeString("target", []byte("_blank"))
|
||||
|
||||
// Duplicate the current image node
|
||||
image := ast.NewImage(ast.NewLink())
|
||||
image.Destination = v.Destination
|
||||
image.Title = v.Title
|
||||
for _, attr := range v.Attributes() {
|
||||
image.SetAttribute(attr.Name, attr.Value)
|
||||
}
|
||||
for child := v.FirstChild(); child != nil; {
|
||||
next := child.NextSibling()
|
||||
image.AppendChild(image, child)
|
||||
child = next
|
||||
}
|
||||
|
||||
// Append our duplicate image to the wrapper link
|
||||
wrap.AppendChild(wrap, image)
|
||||
|
||||
// Wire in the next sibling
|
||||
wrap.SetNextSibling(next)
|
||||
|
||||
// Replace the current node with the wrapper link
|
||||
parent.ReplaceChild(parent, v, wrap)
|
||||
|
||||
// But most importantly ensure the next sibling is still on the old image too
|
||||
v.SetNextSibling(next)
|
||||
}
|
||||
}
|
||||
47
modules/markup/markdown/transform_link.go
Normal file
47
modules/markup/markdown/transform_link.go
Normal file
|
|
@ -0,0 +1,47 @@
|
|||
// Copyright 2024 The Gitea Authors. All rights reserved.
|
||||
// SPDX-License-Identifier: MIT
|
||||
|
||||
package markdown
|
||||
|
||||
import (
|
||||
"bytes"
|
||||
"slices"
|
||||
|
||||
"code.gitea.io/gitea/modules/markup"
|
||||
"code.gitea.io/gitea/modules/setting"
|
||||
giteautil "code.gitea.io/gitea/modules/util"
|
||||
|
||||
"github.com/yuin/goldmark/ast"
|
||||
"github.com/yuin/goldmark/text"
|
||||
)
|
||||
|
||||
func (g *ASTTransformer) transformLink(ctx *markup.RenderContext, v *ast.Link, reader text.Reader) {
|
||||
// Links need their href to munged to be a real value
|
||||
link := v.Destination
|
||||
|
||||
// Do not process the link if it's not a link, starts with an hashtag
|
||||
// (indicating it's an anchor link), starts with `mailto:` or any of the
|
||||
// custom markdown URLs.
|
||||
processLink := len(link) > 0 && !markup.IsLink(link) &&
|
||||
link[0] != '#' && !bytes.HasPrefix(link, byteMailto) &&
|
||||
!slices.ContainsFunc(setting.Markdown.CustomURLSchemes, func(s string) bool {
|
||||
return bytes.HasPrefix(link, []byte(s+":"))
|
||||
})
|
||||
|
||||
if processLink {
|
||||
var base string
|
||||
if ctx.IsWiki {
|
||||
base = ctx.Links.WikiLink()
|
||||
} else if ctx.Links.HasBranchInfo() {
|
||||
base = ctx.Links.SrcLink()
|
||||
} else {
|
||||
base = ctx.Links.Base
|
||||
}
|
||||
|
||||
link = []byte(giteautil.URLJoin(base, string(link)))
|
||||
}
|
||||
if len(link) > 0 && link[0] == '#' {
|
||||
link = []byte("#user-content-" + string(link)[1:])
|
||||
}
|
||||
v.Destination = link
|
||||
}
|
||||
86
modules/markup/markdown/transform_list.go
Normal file
86
modules/markup/markdown/transform_list.go
Normal file
|
|
@ -0,0 +1,86 @@
|
|||
// Copyright 2024 The Gitea Authors. All rights reserved.
|
||||
// SPDX-License-Identifier: MIT
|
||||
|
||||
package markdown
|
||||
|
||||
import (
|
||||
"fmt"
|
||||
|
||||
"code.gitea.io/gitea/modules/markup"
|
||||
|
||||
"github.com/yuin/goldmark/ast"
|
||||
east "github.com/yuin/goldmark/extension/ast"
|
||||
"github.com/yuin/goldmark/renderer/html"
|
||||
"github.com/yuin/goldmark/text"
|
||||
"github.com/yuin/goldmark/util"
|
||||
)
|
||||
|
||||
func (r *HTMLRenderer) renderTaskCheckBoxListItem(w util.BufWriter, source []byte, node ast.Node, entering bool) (ast.WalkStatus, error) {
|
||||
n := node.(*TaskCheckBoxListItem)
|
||||
if entering {
|
||||
if n.Attributes() != nil {
|
||||
_, _ = w.WriteString("<li")
|
||||
html.RenderAttributes(w, n, html.ListItemAttributeFilter)
|
||||
_ = w.WriteByte('>')
|
||||
} else {
|
||||
_, _ = w.WriteString("<li>")
|
||||
}
|
||||
fmt.Fprintf(w, `<input type="checkbox" disabled="" data-source-position="%d"`, n.SourcePosition)
|
||||
if n.IsChecked {
|
||||
_, _ = w.WriteString(` checked=""`)
|
||||
}
|
||||
if r.XHTML {
|
||||
_, _ = w.WriteString(` />`)
|
||||
} else {
|
||||
_ = w.WriteByte('>')
|
||||
}
|
||||
fc := n.FirstChild()
|
||||
if fc != nil {
|
||||
if _, ok := fc.(*ast.TextBlock); !ok {
|
||||
_ = w.WriteByte('\n')
|
||||
}
|
||||
}
|
||||
} else {
|
||||
_, _ = w.WriteString("</li>\n")
|
||||
}
|
||||
return ast.WalkContinue, nil
|
||||
}
|
||||
|
||||
func (r *HTMLRenderer) renderTaskCheckBox(w util.BufWriter, source []byte, node ast.Node, entering bool) (ast.WalkStatus, error) {
|
||||
return ast.WalkContinue, nil
|
||||
}
|
||||
|
||||
func (g *ASTTransformer) transformList(ctx *markup.RenderContext, v *ast.List, reader text.Reader, rc *RenderConfig) {
|
||||
if v.HasChildren() {
|
||||
children := make([]ast.Node, 0, v.ChildCount())
|
||||
child := v.FirstChild()
|
||||
for child != nil {
|
||||
children = append(children, child)
|
||||
child = child.NextSibling()
|
||||
}
|
||||
v.RemoveChildren(v)
|
||||
|
||||
for _, child := range children {
|
||||
listItem := child.(*ast.ListItem)
|
||||
if !child.HasChildren() || !child.FirstChild().HasChildren() {
|
||||
v.AppendChild(v, child)
|
||||
continue
|
||||
}
|
||||
taskCheckBox, ok := child.FirstChild().FirstChild().(*east.TaskCheckBox)
|
||||
if !ok {
|
||||
v.AppendChild(v, child)
|
||||
continue
|
||||
}
|
||||
newChild := NewTaskCheckBoxListItem(listItem)
|
||||
newChild.IsChecked = taskCheckBox.IsChecked
|
||||
newChild.SetAttributeString("class", []byte("task-list-item"))
|
||||
segments := newChild.FirstChild().Lines()
|
||||
if segments.Len() > 0 {
|
||||
segment := segments.At(0)
|
||||
newChild.SourcePosition = rc.metaLength + segment.Start
|
||||
}
|
||||
v.AppendChild(v, newChild)
|
||||
}
|
||||
}
|
||||
g.applyElementDir(v)
|
||||
}
|
||||
Loading…
Reference in a new issue