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Viewing changes to lib/rss/image.rb

  • Committer: Bazaar Package Importer
  • Author(s): akira yamada
  • Date: 2007-03-13 22:11:58 UTC
  • mfrom: (1.1.5 upstream)
  • Revision ID: james.westby@ubuntu.com-20070313221158-h3oql37brlaf2go2
Tags: 1.8.6-1
http://bugs.debian.org/410018
* new upstream version, 1.8.6.
* libruby1.8 conflicts with libopenssl-ruby1.8 (< 1.8.6) (closes: #410018)
* changed packaging style to cdbs from dbs.

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lib/rss/image.rb
 
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require 'rss/1.0'
 
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require 'rss/dublincore'
 
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module RSS
 
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  IMAGE_PREFIX = 'image'
 
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  IMAGE_URI = 'http://web.resource.org/rss/1.0/modules/image/'
 
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  RDF.install_ns(IMAGE_PREFIX, IMAGE_URI)
 
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  IMAGE_ELEMENTS = []
 
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  %w(item favicon).each do |name|
 
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    class_name = Utils.to_class_name(name)
 
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    BaseListener.install_class_name(IMAGE_URI, name, "Image#{class_name}")
 
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    IMAGE_ELEMENTS << "#{IMAGE_PREFIX}_#{name}"
 
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  end
 
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  module ImageModelUtils
 
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    def validate_one_tag_name(ignore_unknown_element, name, tags)
 
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      if !ignore_unknown_element
 
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        invalid = tags.find {|tag| tag != name}
 
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        raise UnknownTagError.new(invalid, IMAGE_URI) if invalid
 
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      end
 
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      raise TooMuchTagError.new(name, tag_name) if tags.size > 1
 
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    end
 
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  end
 
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  module ImageItemModel
 
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    include ImageModelUtils
 
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    extend BaseModel
 
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    def self.append_features(klass)
 
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      super
 
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      klass.install_have_child_element("item", IMAGE_URI, "?",
 
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                                       "#{IMAGE_PREFIX}_item")
 
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      klass.install_must_call_validator(IMAGE_PREFIX, IMAGE_URI)
 
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    end
 
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    class ImageItem < Element
 
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      include RSS10
 
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      include DublinCoreModel
 
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      @tag_name = "item"
 
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      class << self
 
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        def required_prefix
 
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          IMAGE_PREFIX
 
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        end
 
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        def required_uri
 
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          IMAGE_URI
 
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        end
 
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      end
 
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      install_must_call_validator(IMAGE_PREFIX, IMAGE_URI)
 
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      [
 
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        ["about", ::RSS::RDF::URI, true],
 
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        ["resource", ::RSS::RDF::URI, false],
 
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      ].each do |name, uri, required|
 
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        install_get_attribute(name, uri, required, nil, nil,
 
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                              "#{::RSS::RDF::PREFIX}:#{name}")
 
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      end
 
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      %w(width height).each do |tag|
 
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        full_name = "#{IMAGE_PREFIX}_#{tag}"
 
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        disp_name = "#{IMAGE_PREFIX}:#{tag}"
 
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        install_text_element(tag, IMAGE_URI, "?",
 
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                             full_name, :integer, disp_name)
 
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        BaseListener.install_get_text_element(IMAGE_URI, tag, "#{full_name}=")
 
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      end
 
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      alias width= image_width=
 
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      alias width image_width
 
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      alias height= image_height=
 
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      alias height image_height
 
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      def initialize(*args)
 
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        if Utils.element_initialize_arguments?(args)
 
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          super
 
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        else
 
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          super()
 
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          self.about = args[0]
 
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          self.resource = args[1]
 
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        end
 
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      end
 
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      def full_name
 
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        tag_name_with_prefix(IMAGE_PREFIX)
 
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      end
 
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      private
 
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      def maker_target(target)
 
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        target.image_item
 
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      end
 
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      def setup_maker_attributes(item)
 
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        item.about = self.about
 
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        item.resource = self.resource
 
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      end
 
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    end
 
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  end
 
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  module ImageFaviconModel
 
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    include ImageModelUtils
 
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    extend BaseModel
 
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    def self.append_features(klass)
 
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      super
 
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      unless klass.class == Module
 
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        klass.install_have_child_element("favicon", IMAGE_URI, "?",
 
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                                         "#{IMAGE_PREFIX}_favicon")
 
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        klass.install_must_call_validator(IMAGE_PREFIX, IMAGE_URI)
 
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      end
 
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    end
 
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    class ImageFavicon < Element
 
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      include RSS10
 
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      include DublinCoreModel
 
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      @tag_name = "favicon"
 
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      class << self
 
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        def required_prefix
 
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          IMAGE_PREFIX
 
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        end
 
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        def required_uri
 
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          IMAGE_URI
 
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        end
 
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      end
 
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      [
 
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        ["about", ::RSS::RDF::URI, true, ::RSS::RDF::PREFIX],
 
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        ["size", IMAGE_URI, true, IMAGE_PREFIX],
 
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      ].each do |name, uri, required, prefix|
 
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        install_get_attribute(name, uri, required, nil, nil,
 
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                              "#{prefix}:#{name}")
 
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      end
 
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      AVAILABLE_SIZES = %w(small medium large)
 
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      alias_method :_size=, :size=
 
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      private :_size=
 
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      def size=(new_value)
 
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        if @do_validate and !new_value.nil?
 
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          new_value = new_value.strip
 
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          unless AVAILABLE_SIZES.include?(new_value)
 
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            attr_name = "#{IMAGE_PREFIX}:size"
 
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            raise NotAvailableValueError.new(full_name, new_value, attr_name)
 
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          end
 
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        end
 
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        __send__(:_size=, new_value)
 
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      end
 
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      alias image_size= size=
 
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      alias image_size size
 
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      def initialize(*args)
 
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        if Utils.element_initialize_arguments?(args)
 
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          super
 
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        else
 
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          super()
 
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          self.about = args[0]
 
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          self.size = args[1]
 
168
        end
 
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      end
 
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171
      def full_name
 
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        tag_name_with_prefix(IMAGE_PREFIX)
 
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      end
 
174
 
 
175
      private
 
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      def maker_target(target)
 
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        target.image_favicon
 
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      end
 
179
 
 
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      def setup_maker_attributes(favicon)
 
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        favicon.about = self.about
 
182
        favicon.size = self.size
 
183
      end
 
184
    end
 
185
 
 
186
  end
 
187
 
 
188
  class RDF
 
189
    class Channel; include ImageFaviconModel; end
 
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    class Item; include ImageItemModel; end
 
191
  end
 
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end