class PDF::Reader::MetadataStrategy

def self.to_sym
  :metadata
end

def decoded_info
  @decoded_info ||= decode_strings(info)
end

def process
  return false unless options[:metadata]
  # may be useful to some people
  callback(:pdf_version, ohash.pdf_version)
  # ye olde metadata
  callback(:metadata, [decoded_info]) if info?
  # new style xml metadata
  callback(:xml_metadata, [xml_metadata]) if xml_metadata?
  # page count
  if pages?
    count = ohash.object(pages[:Count])
    callback(:page_count, count.to_i)
  end
end

def xml_metadata
  return @xml_metadata if defined?(@xml_metadata)
  if root[:Metadata].nil?
    @xml_metadata = nil
  else
    string = ohash.object(root[:Metadata]).unfiltered_data
    string.force_encoding("utf-8") if string.respond_to?(:force_encoding)
    @xml_metadata = string
  end
end

def xml_metadata?
  xml_metadata ? true : false
end