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require 'rss/1.0'
require 'rss/dublincore'

module RSS

  IMAGE_PREFIX = 'image'
  IMAGE_URI = 'http://purl.org/rss/1.0/modules/image/'

  RDF.install_ns(IMAGE_PREFIX, IMAGE_URI)

  IMAGE_ELEMENTS = []

  %w(item favicon).each do |name|
    class_name = Utils.to_class_name(name)
    BaseListener.install_class_name(IMAGE_URI, name, "Image#{class_name}")
    IMAGE_ELEMENTS << "#{IMAGE_PREFIX}_#{name}"
  end

  module ImageModelUtils
    def validate_one_tag_name(ignore_unknown_element, name, tags)
      if !ignore_unknown_element
        invalid = tags.find {|tag| tag != name}
        raise UnknownTagError.new(invalid, IMAGE_URI) if invalid
      end
      raise TooMuchTagError.new(name, tag_name) if tags.size > 1
    end
  end

  module ImageItemModel
    include ImageModelUtils
    extend BaseModel

    def self.append_features(klass)
      super

      klass.install_have_child_element("item", IMAGE_URI, "?",
                                       "#{IMAGE_PREFIX}_item")
      klass.install_must_call_validator(IMAGE_PREFIX, IMAGE_URI)
    end

    class ImageItem < Element
      include RSS10
      include DublinCoreModel

      @tag_name = "item"

      class << self
        def required_prefix
          IMAGE_PREFIX
        end

        def required_uri
          IMAGE_URI
        end
      end

      install_must_call_validator(IMAGE_PREFIX, IMAGE_URI)

      [
        ["about", ::RSS::RDF::URI, true],
        ["resource", ::RSS::RDF::URI, false],
      ].each do |name, uri, required|
        install_get_attribute(name, uri, required, nil, nil,
                              "#{::RSS::RDF::PREFIX}:#{name}")
      end

      %w(width height).each do |tag|
        full_name = "#{IMAGE_PREFIX}_#{tag}"
        disp_name = "#{IMAGE_PREFIX}:#{tag}"
        install_text_element(tag, IMAGE_URI, "?",
                             full_name, :integer, disp_name)
        BaseListener.install_get_text_element(IMAGE_URI, tag, full_name)
      end

      alias width= image_width=
      alias width image_width
      alias height= image_height=
      alias height image_height

      def initialize(*args)
        if Utils.element_initialize_arguments?(args)
          super
        else
          super()
          self.about = args[0]
          self.resource = args[1]
        end
      end

      def full_name
        tag_name_with_prefix(IMAGE_PREFIX)
      end

      private
      def maker_target(target)
        target.image_item
      end

      def setup_maker_attributes(item)
        item.about = self.about
        item.resource = self.resource
      end
    end
  end

  module ImageFaviconModel
    include ImageModelUtils
    extend BaseModel

    def self.append_features(klass)
      super

      unless klass.class == Module
        klass.install_have_child_element("favicon", IMAGE_URI, "?",
                                         "#{IMAGE_PREFIX}_favicon")
        klass.install_must_call_validator(IMAGE_PREFIX, IMAGE_URI)
      end
    end

    class ImageFavicon < Element
      include RSS10
      include DublinCoreModel

      @tag_name = "favicon"

      class << self
        def required_prefix
          IMAGE_PREFIX
        end

        def required_uri
          IMAGE_URI
        end
      end

      [
        ["about", ::RSS::RDF::URI, true, ::RSS::RDF::PREFIX],
        ["size", IMAGE_URI, true, IMAGE_PREFIX],
      ].each do |name, uri, required, prefix|
        install_get_attribute(name, uri, required, nil, nil,
                              "#{prefix}:#{name}")
      end

      AVAILABLE_SIZES = %w(small medium large)
      alias_method :set_size, :size=
      private :set_size
      def size=(new_value)
        if @do_validate and !new_value.nil?
          new_value = new_value.strip
          unless AVAILABLE_SIZES.include?(new_value)
            attr_name = "#{IMAGE_PREFIX}:size"
            raise NotAvailableValueError.new(full_name, new_value, attr_name)
          end
        end
        set_size(new_value)
      end

      alias image_size= size=
      alias image_size size

      def initialize(*args)
        if Utils.element_initialize_arguments?(args)
          super
        else
          super()
          self.about = args[0]
          self.size = args[1]
        end
      end

      def full_name
        tag_name_with_prefix(IMAGE_PREFIX)
      end

      private
      def maker_target(target)
        target.image_favicon
      end

      def setup_maker_attributes(favicon)
        favicon.about = self.about
        favicon.size = self.size
      end
    end

  end

  class RDF
    class Channel; include ImageFaviconModel; end
    class Item; include ImageItemModel; end
  end

end

Name	Type	Size	Permission
content	Folder		0755
dublincore	Folder		0755
maker	Folder		0755
0.9.rb	File	9.36 KB	0644
1.0.rb	File	8.46 KB	0644
2.0.rb	File	2.29 KB	0644
atom.rb	File	22.41 KB	0644
content.rb	File	771 B	0644
converter.rb	File	3.87 KB	0644
dublincore.rb	File	4.18 KB	0644
image.rb	File	4.57 KB	0644
itunes.rb	File	9.96 KB	0644
maker.rb	File	1.75 KB	0644
parser.rb	File	15.47 KB	0644
rexmlparser.rb	File	1.09 KB	0644
rss.rb	File	33.53 KB	0644
slash.rb	File	1.22 KB	0644
syndication.rb	File	1.75 KB	0644
taxonomy.rb	File	2.98 KB	0644
trackback.rb	File	6.56 KB	0644
utils.rb	File	2.61 KB	0644
xml-stylesheet.rb	File	2.13 KB	0644
xml.rb	File	1.47 KB	0644
xmlparser.rb	File	1.55 KB	0644
xmlscanner.rb	File	2.1 KB	0644

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