Class: SvgConform::Remediations::FontEmbeddingRemediation

Inherits:
BaseRemediation
  • Object
show all
Defined in:
lib/svg_conform/remediations/font_embedding_remediation.rb

Overview

Remediation for embedding external fonts NOTE: This is a placeholder - actual font embedding would require fetching external fonts and converting them to data URIs

Instance Method Summary collapse

Methods inherited from BaseRemediation

#execute, #should_execute?, #to_s

Instance Method Details

#apply(document, _context) ⇒ Object 



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# File 'lib/svg_conform/remediations/font_embedding_remediation.rb', line 20

def apply(document, _context)
  changes = []

  # Find all style elements with @font-face rules
  document.xpath("//style").each do |style_node|
    content = style_node.text || ""
    next unless content.include?("@font-face")

    modified_content = embed_fonts_in_css(content, changes)
    if modified_content != content
      style_node.content = modified_content
    end
  end

  # Find font-face elements with external references
  document.xpath("//font-face-src/font-face-uri").each do |uri_node|
    href = get_attribute(uri_node,
                         "xlink:href") || get_attribute(uri_node, "href")
    next unless href && !href.start_with?("data:", "#")

    # Convert external font to data URI
    embedded_uri = fetch_and_embed_font(href)
    if embedded_uri
      set_attribute(uri_node, "xlink:href", embedded_uri)
      changes << {
        type: "font_embedded",
        element: "font-face-uri",
        message: "Embedded external font: #{href}",
      }
    else
      changes << {
        type: "font_embedding_failed",
        element: "font-face-uri",
        message: "Failed to embed font: #{href}",
      }
    end
  end

  changes
end

#can_remediate? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/svg_conform/remediations/font_embedding_remediation.rb', line 61

def can_remediate?
  true
end