mirror of
https://github.com/go-gitea/gitea
synced 2024-11-05 01:34:25 +00:00
67 lines
1.8 KiB
Go
67 lines
1.8 KiB
Go
// 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.IsFullURLBytes(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)
|
|
}
|
|
}
|