Class RSS::Element < Object

# File lib/rss/rss.rb, line 846
def initialize(do_validate=true, attrs=nil)
  @parent = nil
  @converter = nil
  if attrs.nil? and (do_validate.is_a?(Hash) or do_validate.is_a?(Array))
    do_validate, attrs = true, do_validate
  end
  @do_validate = do_validate
  initialize_variables(attrs || {})
end

# File lib/rss/rss.rb, line 804
def add_have_children_element(variable_name, plural_name)
  self::HAVE_CHILDREN_ELEMENTS << [variable_name, plural_name]
end

# File lib/rss/rss.rb, line 812
def add_need_initialize_variable(variable_name)
  self::NEED_INITIALIZE_VARIABLES << variable_name
end

# File lib/rss/rss.rb, line 816
def add_plural_form(singular, plural)
  self::PLURAL_FORMS[singular] = plural
end

# File lib/rss/rss.rb, line 808
def add_to_element_method(method_name)
  self::TO_ELEMENT_METHODS << method_name
end

# File lib/rss/rss.rb, line 793
def content_setup(type=nil, disp_name=nil)
  writer_type, reader_type = type
  def_corresponded_attr_writer :content, writer_type, disp_name
  def_corresponded_attr_reader :content, reader_type
  @have_content = true
end

# File lib/rss/rss.rb, line 875
def convert(value)
  if @converter
    @converter.convert(value)
  else
    value
  end
end

# File lib/rss/rss.rb, line 864
def converter=(converter)
  @converter = converter
  targets = children.dup
  self.class.have_children_elements.each do |variable_name, plural_name|
    targets.concat(__send__(plural_name))
  end
  targets.each do |target|
    target.converter = converter unless target.nil?
  end
end

# File lib/rss/rss.rb, line 774
def def_corresponded_attr_reader(name, type=nil)
  case type
  when :inherit
    inherit_convert_attr_reader name
  when :uri
    uri_convert_attr_reader name
  when :yes_clean_other
    yes_clean_other_attr_reader name
  when :yes_other
    yes_other_attr_reader name
  when :csv
    csv_attr_reader name
  when :csv_integer
    csv_attr_reader name, :separator => ","
  else
    convert_attr_reader name
  end
end

# File lib/rss/rss.rb, line 746
def def_corresponded_attr_writer(name, type=nil, disp_name=nil)
  disp_name ||= name
  case type
  when :integer
    integer_writer name, disp_name
  when :positive_integer
    positive_integer_writer name, disp_name
  when :boolean
    boolean_writer name, disp_name
  when :w3cdtf, :rfc822, :rfc2822
    date_writer name, type, disp_name
  when :text_type
    text_type_writer name, disp_name
  when :content
    content_writer name, disp_name
  when :yes_clean_other
    yes_clean_other_writer name, disp_name
  when :yes_other
    yes_other_writer name, disp_name
  when :csv
    csv_writer name
  when :csv_integer
    csv_integer_writer name
  else
    attr_writer name
  end
end

# File lib/rss/rss.rb, line 860
def full_name
  tag_name
end

# File lib/rss/rss.rb, line 683
def get_attributes
  inherited_array_reader("GET_ATTRIBUTES")
end

# File lib/rss/rss.rb, line 686
def have_children_elements
  inherited_array_reader("HAVE_CHILDREN_ELEMENTS")
end

# File lib/rss/rss.rb, line 800
def have_content?
  @have_content
end

# File lib/rss/rss.rb, line 925
def have_xml_content?
  false
end

# File lib/rss/rss.rb, line 703
def inherited(klass)
  klass.const_set(:MUST_CALL_VALIDATORS, {})
  klass.const_set(:MODELS, [])
  klass.const_set(:GET_ATTRIBUTES, [])
  klass.const_set(:HAVE_CHILDREN_ELEMENTS, [])
  klass.const_set(:TO_ELEMENT_METHODS, [])
  klass.const_set(:NEED_INITIALIZE_VARIABLES, [])
  klass.const_set(:PLURAL_FORMS, {})

  tag_name = klass.name.split(/::/).last
  tag_name[0, 1] = tag_name[0, 1].downcase
  klass.instance_variable_set(:@tag_name, tag_name)
  klass.instance_variable_set(:@have_content, false)
end

# File lib/rss/rss.rb, line 699
def inherited_base
  ::RSS::Element
end

# File lib/rss/rss.rb, line 731
def install_get_attribute(name, uri, required=true,
                          type=nil, disp_name=nil,
                          element_name=nil)
  disp_name ||= name
  element_name ||= name
  writer_type, reader_type = type
  def_corresponded_attr_writer name, writer_type, disp_name
  def_corresponded_attr_reader name, reader_type
  if type == :boolean and /^is/ =~ name
    alias_method "#{$POSTMATCH}?", name
  end
  self::GET_ATTRIBUTES << [name, uri, required, element_name]
  add_need_initialize_variable(disp_name)
end

# File lib/rss/rss.rb, line 722
def install_model(tag, uri, occurs=nil, getter=nil, plural=false)
  getter ||= tag
  if m = self::MODELS.find {|t, u, o, g, p| t == tag and u == uri}
    m[2] = occurs
  else
    self::MODELS << [tag, uri, occurs, getter, plural]
  end
end

# File lib/rss/rss.rb, line 718
def install_must_call_validator(prefix, uri)
  self::MUST_CALL_VALIDATORS[uri] = prefix
end

# File lib/rss/rss.rb, line 832
def install_ns(prefix, uri)
  if self::NSPOOL.has_key?(prefix)
    raise OverlappedPrefixError.new(prefix)
  end
  self::NSPOOL[prefix] = uri
end

# File lib/rss/rss.rb, line 680
def models
  inherited_array_reader("MODELS")
end

# File lib/rss/rss.rb, line 677
def must_call_validators
  inherited_hash_reader("MUST_CALL_VALIDATORS")
end

# File lib/rss/rss.rb, line 929
def need_base64_encode?
  false
end

# File lib/rss/rss.rb, line 692
def need_initialize_variables
  inherited_array_reader("NEED_INITIALIZE_VARIABLES")
end

# File lib/rss/rss.rb, line 828
def need_parent?
  false
end

# File lib/rss/rss.rb, line 695
def plural_forms
  inherited_hash_reader("PLURAL_FORMS")
end

# File lib/rss/rss.rb, line 820
def required_prefix
  nil
end

# File lib/rss/rss.rb, line 824
def required_uri
  ""
end

# File lib/rss/rss.rb, line 933
def set_next_element(tag_name, next_element)
  klass = next_element.class
  prefix = ""
  prefix << "#{klass.required_prefix}_" if klass.required_prefix
  key = "#{prefix}#{tag_name.gsub(/-/, '_')}"
  if self.class.plural_forms.has_key?(key)
    ary = __send__("#{self.class.plural_forms[key]}")
    ary << next_element
  else
    __send__("#{key}=", next_element)
  end
end

# File lib/rss/rss.rb, line 839
def tag_name
  @tag_name
end

# File lib/rss/rss.rb, line 689
def to_element_methods
  inherited_array_reader("TO_ELEMENT_METHODS")
end

# File lib/rss/rss.rb, line 904
def to_s(need_convert=true, indent='')
  if self.class.have_content?
    return "" if !empty_content? and !content_is_set?
    rv = tag(indent) do |next_indent|
      if empty_content?
        ""
      else
        xmled_content
      end
    end
  else
    rv = tag(indent) do |next_indent|
      self.class.to_element_methods.collect do |method_name|
        __send__(method_name, false, next_indent)
      end
    end
  end
  rv = convert(rv) if need_convert
  rv
end

# File lib/rss/rss.rb, line 883
def valid?(ignore_unknown_element=true)
  validate(ignore_unknown_element)
  true
rescue RSS::Error
  false
end

# File lib/rss/rss.rb, line 890
def validate(ignore_unknown_element=true)
  do_validate = @do_validate
  @do_validate = true
  validate_attribute
  __validate(ignore_unknown_element)
ensure
  @do_validate = do_validate
end

# File lib/rss/rss.rb, line 899
def validate_for_stream(tags, ignore_unknown_element=true)
  validate_attribute
  __validate(ignore_unknown_element, tags, false)
end

# File lib/rss/rss.rb, line 947
def have_required_elements?
  self.class::MODELS.all? do |tag, uri, occurs, getter|
    if occurs.nil? or occurs == "+"
      child = __send__(getter)
      if child.is_a?(Array)
        children = child
        children.any? {|c| c.have_required_elements?}
      else
        !child.to_s.empty?
      end
    else
      true
    end
  end
end