added doc

lib/eeepub/ocf.rb

@@ -1,21 +1,50 @@
 module EeePub
+  # Class to create OCF
   class OCF
+    # Class for 'container.xml' of OCF
     class Container < ContainerItem
       attr_accessor :rootfiles
 
-      def set_values(arg)
+      # @param [String or Array or Hash]
+      #
+      # @example
+      #   # with String
+      #   EeePub::OCF::Container.new('container.opf')
+      #
+      # @example
+      #   # with Array
+      #   EeePub::OCF::Container.new(['container.opf', 'other.opf'])
+      #
+      # @example
+      #   # with Hash
+      #   EeePub::OCF::Container.new(
+      #     :rootfiles => [
+      #       {:full_path => 'container.opf', :media_type => 'application/oebps-package+xml'}
+      #     ]
+      #   )
+      def initialize(arg)
         case arg
         when String
-          super(
+          set_values(
             :rootfiles => [
               {:full_path => arg, :media_type => guess_media_type(arg)}
             ]
           )
-        else
-          super
+        when Array
+          # TODO: spec
+          set_values(
+            :rootfiles => arg.keys.map { |k|
+              filename = arg[k]
+              {:full_path => filename, :media_type => guess_media_type(filename)}
+            }
+          )
+        when Hash
+          set_values(arg)
         end
       end
 
+      private
+
       def build_xml(builder)
         builder.container :xmlns => "urn:oasis:names:tc:opendocument:xmlns:container", :version => "1.0" do
           builder.rootfiles do
@@ -29,12 +58,20 @@ def build_xml(builder)
 
     attr_accessor :dir, :container
 
+    # @param [Hash<Symbol, Object>] values the values of symbols and objects for OCF
+    #
+    # @example
+    #   EeePub::OCF.new(
+    #     :dir => '/path/to/dir',
+    #     :container => 'container.opf'
+    #   )
     def initialize(values)
       values.each do |k, v|
         self.send(:"#{k}=", v)
       end
     end
 
+    # Set container
     def container=(arg)
       case arg
       when String
@@ -44,6 +81,9 @@ def container=(arg)
       end
     end
 
+    # Save as OCF
+    #
+    # @param [String] output_path the output file path of ePub
     def save(output_path)
       output_path = File.expand_path(output_path)