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	This PR removes (almost) all path tricks, and introduces "renderhelper" package. Now we can clearly see the rendering behaviors for comment/file/wiki, more details are in "renderhelper" tests. Fix #31411 , fix #18592, fix #25632 and maybe more problems. (ps: fix #32608 by the way)
		
			
				
	
	
		
			60 lines
		
	
	
		
			1.6 KiB
		
	
	
	
		
			Go
		
	
	
	
	
	
			
		
		
	
	
			60 lines
		
	
	
		
			1.6 KiB
		
	
	
	
		
			Go
		
	
	
	
	
	
// 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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	"code.gitea.io/gitea/modules/markup"
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	"github.com/yuin/goldmark/ast"
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)
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func (g *ASTTransformer) transformImage(ctx *markup.RenderContext, v *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.IsFullURLBytes(v.Destination) {
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		v.Destination = []byte(ctx.RenderHelper.ResolveLink(string(v.Destination), markup.LinkTypeMedia))
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	}
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	parent := v.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 := v.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, v, 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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}
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