// Copyright 2024 The Gitea Authors. All rights reserved.// SPDX-License-Identifier: MIT package markdown import (	"strings" 	"forgejo.org/modules/markup"	giteautil "forgejo.org/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.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)	}}