Class: SvgConform::Remediations::ImageEmbeddingRemediation

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

Overview

Remediation for embedding external images

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/image_embedding_remediation.rb', line 18

def apply(document, _context)
  changes = []

  # Find all image elements with external references
  document.xpath("//image").each do |image_node|
    href = get_attribute(image_node,
                         "href") || get_attribute(image_node,
                                                  "xlink:href")
    next unless href && !href.start_with?("data:", "#")

    # Convert external image to data URI
    embedded_uri = fetch_and_embed_image(href)
    if embedded_uri
      # Update both href variants for compatibility
      set_attribute(image_node, "href", embedded_uri)
      if get_attribute(
        image_node, "xlink:href"
      )
        set_attribute(image_node, "xlink:href",
                      embedded_uri)
      end

      changes << {
        type: "image_embedded",
        element: "image",
        message: "Embedded external image: #{href}",
      }
    else
      changes << {
        type: "image_embedding_failed",
        element: "image",
        message: "Failed to embed image: #{href}",
      }
    end
  end

  # Find style attributes with background images
  document.traverse do |node|
    next unless element?(node)

    style_value = get_attribute(node, "style")
    next unless style_value&.include?("url(")

    modified_style = embed_images_in_style(style_value, changes)
    if modified_style != style_value
      set_attribute(node, "style", modified_style)
    end
  end

  changes
end

#can_remediate? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/svg_conform/remediations/image_embedding_remediation.rb', line 70

def can_remediate?
  true
end