Module: Asciidoctor::Revealjs::Converter::Footnotes

Defined in:
lib/asciidoctor_revealjs/converter.rb

Overview

Footnotes

Class Method Summary collapse

Class Method Details

.clear_slide_footnotes ⇒ Object 



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# File 'lib/asciidoctor_revealjs/converter.rb', line 68

def clear_slide_footnotes
  @slide_footnotes = {}
end

.slide_footnote(footnote) ⇒ Object 



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# File 'lib/asciidoctor_revealjs/converter.rb', line 41

def slide_footnote(footnote)
  footnote_parent = footnote.parent
  # footnotes declared on the section title are processed during the parsing/substitution.
  # as a result, we need to store them to display them on the right slide/section
  if footnote_parent.instance_of?(::Asciidoctor::Section)
    section_footnotes = @section_footnotes[footnote_parent] || []
    footnote_index = section_footnotes.length + 1
    attributes = footnote.attributes.merge({ 'index' => footnote_index })
    inline_footnote = Asciidoctor::Inline.new(footnote_parent, footnote.context, footnote.text, attributes: attributes)
    section_footnotes << Asciidoctor::Document::Footnote.new(inline_footnote.attr(:index), inline_footnote.id, inline_footnote.text)
    @section_footnotes[footnote_parent] = section_footnotes
  else
    parent = footnote.parent
    parent = parent.parent until parent.nil? || parent.instance_of?(::Asciidoctor::Section)
    # check if there is any footnote attached on the section title
    section_footnotes = parent.nil? ? [] : @section_footnotes[parent] || []
    initial_index = footnote.attr(:index)
    # reset the footnote numbering to 1 on each slide
    # make sure that if a footnote is used more than once it will use the same index/number
    slide_index = (existing_footnote = @slide_footnotes[initial_index]) ? existing_footnote.index : @slide_footnotes.length + section_footnotes.length + 1
    attributes = footnote.attributes.merge({ 'index' => slide_index })
    inline_footnote = Asciidoctor::Inline.new(footnote_parent, footnote.context, footnote.text, attributes: attributes)
    @slide_footnotes[initial_index] = Asciidoctor::Document::Footnote.new(inline_footnote.attr(:index), inline_footnote.id, inline_footnote.text)
  end
  inline_footnote
end

.slide_footnotes(section) ⇒ Object 



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# File 'lib/asciidoctor_revealjs/converter.rb', line 72

def slide_footnotes(section)
  section_footnotes = @section_footnotes[section] || []
  section_footnotes + @slide_footnotes.values
end