Class: AsciidoctorExtensions::KrokiProcessor

Inherits:
Object
  • Object
show all
Includes:
Asciidoctor::Logging
Defined in:
lib/asciidoctor/extensions/asciidoctor_kroki/extension.rb

Overview

Internal processor

Constant Summary collapse

TEXT_FORMATS = 
%w[txt atxt utxt].freeze
BUILTIN_ATTRIBUTES = 
%w[target width height format fallback link float align role caption title cloaked-context subs].freeze

Class Method Summary collapse

Class Method Details

.process(processor, parent, attrs, diagram_type, diagram_text, logger) ⇒ Object

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# File 'lib/asciidoctor/extensions/asciidoctor_kroki/extension.rb', line 150

def process(processor, parent, attrs, diagram_type, diagram_text, logger)
  doc = parent.document
  diagram_text = prepend_plantuml_config(diagram_text, diagram_type, doc, logger)
  # If "subs" attribute is specified, substitute accordingly.
  # Be careful not to specify "specialcharacters" or your diagram code won't be valid anymore!
  if (subs = attrs['subs'])
    diagram_text = parent.apply_subs(diagram_text, parent.resolve_subs(subs))
  end
  attrs.delete('opts')
  format = get_format(doc, attrs, diagram_type)
  attrs['role'] = get_role(format, attrs['role'])
  attrs['format'] = format
  opts = attrs.filter { |key, _| key.is_a?(String) && BUILTIN_ATTRIBUTES.none? { |k| key == k } && !key.end_with?('-option') }
  kroki_diagram = KrokiDiagram.new(diagram_type, format, diagram_text, attrs['target'], opts)
  kroki_client = KrokiClient.new({
                                   server_url: server_url(doc),
                                   http_method: http_method(doc),
                                   max_uri_length: max_uri_length(doc),
                                   source_location: doc.reader.cursor_at_mark,
                                   http_client: KrokiHttpClient
                                 }, logger)
  alt = get_alt(attrs)
  title = attrs.delete('title')
  caption = attrs.delete('caption')
  if TEXT_FORMATS.include?(format)
    text_content = kroki_client.text_content(kroki_diagram)
    block = processor.create_block(parent, 'literal', text_content, attrs)
  else
    attrs['alt'] = alt
    attrs['target'] = create_image_src(doc, kroki_diagram, kroki_client)
    block = processor.create_image_block(parent, attrs)
  end
  block.title = title if title
  block.assign_caption(caption, 'figure')
  block
end