Class: Sourcerer::MarkDownGrade::LiWithNestedLists

Inherits:
ReverseMarkdown::Converters::Base
  • Object
show all
Defined in:
lib/sourcerer/mark_down_grade.rb

Overview

List item converter that handles nested lists and checklists.

Instance Method Summary collapse

Instance Method Details

#convert(node, state = {}) ⇒ Object 



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# File 'lib/sourcerer/mark_down_grade.rb', line 498

def convert node, state={}
  indentation = indentation_from(state)

  content_parts = []
  nested_lists = []

  # Check for checkbox in this LI or its first paragraph
  # Asciidoctor often puts the checkbox inside a <p> tag
  checkbox = node.at_xpath('./input[@type="checkbox"] | ./p/input[@type="checkbox"][1]')

  prefix = if checkbox
             is_checked = checkbox['checked'] || checkbox['data-item-complete'] == '1'
             # Remove the checkbox from the DOM so it doesn't get rendered again
             checkbox.remove
             is_checked ? '<!--CHECKBOX_CHECKED--> ' : '<!--CHECKBOX_UNCHECKED--> '
           else
             prefix_for(node)
           end

  node.children.each do |child|
    if child.element? && %w[ol ul].include?(child.name)
      nested_lists << child
    else
      content_parts << treat(child, state)
    end
  end

  content = content_parts.join.strip
  result = "#{indentation}#{prefix}#{content}\n"

  nested_lists.each do |nested_list|
    nested_state = state.merge(ol_count: state.fetch(:ol_count, 0) + 1)
    nested_md = treat(nested_list, nested_state).strip
    result << "#{nested_md}\n" unless nested_md.empty?
  end

  result
end