Class: Coradoc::Element::ListItem

Inherits:
Base
  • Object
show all
Defined in:
lib/coradoc/element/list_item.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Methods inherited from Base

access_children, #children_accessors, children_accessors, declare_children, #simplify_block_content, visit, #visit

Constructor Details

#initialize(content, options = {}) ⇒ ListItem 



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# File 'lib/coradoc/element/list_item.rb', line 8

def initialize(content, options = {})
  @marker = options.fetch(:marker, nil)
  @id = options.fetch(:id, nil)
  @anchor = @id.nil? ? nil : Inline::Anchor.new(@id)
  @content = content
  # @content = [@content] unless @content.class == Array
  @attached = options.fetch(:attached, [])
  @nested = options.fetch(:nested, nil)
  @line_break = options.fetch(:line_break, "\n")
end

Instance Attribute Details

#anchor ⇒ Object

Returns the value of attribute anchor.



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# File 'lib/coradoc/element/list_item.rb', line 4

def anchor
  @anchor
end

#content ⇒ Object

Returns the value of attribute content.



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# File 'lib/coradoc/element/list_item.rb', line 4

def content
  @content
end

#id ⇒ Object

Returns the value of attribute id.



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# File 'lib/coradoc/element/list_item.rb', line 4

def id
  @id
end

#line_break ⇒ Object

Returns the value of attribute line_break.



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# File 'lib/coradoc/element/list_item.rb', line 4

def line_break
  @line_break
end

#marker ⇒ Object

Returns the value of attribute marker.



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# File 'lib/coradoc/element/list_item.rb', line 4

def marker
  @marker
end

#subitem ⇒ Object

Returns the value of attribute subitem.



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# File 'lib/coradoc/element/list_item.rb', line 4

def subitem
  @subitem
end

Instance Method Details

#inline?(elem) ⇒ Boolean 



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# File 'lib/coradoc/element/list_item.rb', line 19

def inline?(elem)
  case elem
  when Inline::HardLineBreak
    :hardbreak
  when ->(i) { i.class.name.to_s.include? "::Inline::" }
    true
  when String, TextElement, Image::InlineImage
    true
  else
    false
  end
end

#to_adoc ⇒ Object 



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# File 'lib/coradoc/element/list_item.rb', line 32

def to_adoc
  anchor = @anchor.nil? ? "" : " #{@anchor.to_adoc} "

  content = Array(@content).flatten.compact
  out = ""
  prev_inline = :init

  # Collapse meaningless <DIV>s
  while content.map(&:class) == [Section] && content.first.safe_to_collapse?
    content = Array(content.first.contents)
  end

  content.each_with_index do |subitem, idx|
    subcontent = Coradoc::Generator.gen_adoc(subitem)
    inline = inline?(subitem)
    next_inline = idx + 1 == content.length ? :end : inline?(content[idx + 1])

    # Only try to postprocess elements that are text,
    # otherwise we could strip markup.
    if subitem.is_a? Coradoc::Element::TextElement
      if [:hardbreak, :init, false].include?(prev_inline)
        subcontent = Coradoc.strip_unicode(subcontent, only: :begin)
      end
      if [:hardbreak, :end, false].include?(next_inline)
        subcontent = Coradoc.strip_unicode(subcontent, only: :end)
      end
    end

    case inline
    when true
      out += if prev_inline == false
               "\n+\n#{subcontent}"
             else
               subcontent
             end
    when false
      out += case prev_inline
             when :hardbreak
               subcontent.strip
             when :init
               "{empty}\n+\n#{subcontent.to_s.strip}"
             else
               "\n+\n#{subcontent.to_s.strip}"
             end
    when :hardbreak
      if i[hardbreak init].include? prev_inline
        # can't have two hard breaks in a row; can't start with a hard break
      else
        out += "\n+\n"
      end
    end

    prev_inline = inline
  end
  out += "{empty}" if prev_inline == :hardbreak
  out = "{empty}" if out.empty?

  attach = @attached.map do |elem|
    "+\n#{Coradoc::Generator.gen_adoc(elem)}"
  end.join
  nest = Coradoc::Generator.gen_adoc(@nested)
  out = " #{anchor}#{out}#{@line_break}"
  out + attach + nest
end