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- // 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"
- )
-
- func (g *ASTTransformer) transformImage(ctx *markup.RenderContext, v *ast.Image) {
- // 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)
- }
- }
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