manifest.rb in epub-parser-0.1.3

- old
+ new

@@ -1,7 +1,8 @@
 require 'enumerabler'
 require 'epub/constants'
+require 'epub/parser/content_document'
 
 module EPUB
   module Publication
     class Package
       class Manifest
@@ -12,13 +13,12 @@
           @items ||= {}
           item.manifest = self
           @items[item.id] = item
         end
 
-        # syntax sugar
         def navs
-          items.selector {|i| i.properties.include? 'nav'}
+          items.selector(&:nav?)
         end
 
         def nav
           navs.first
         end
@@ -60,14 +60,18 @@
 
           def read
             rootfile = Addressable::URI.parse(manifest.package.book.ocf.container.rootfile.full_path)
             Zip::Archive.open(manifest.package.book.epub_file) {|zip|
               path = Addressable::URI.unescape(rootfile + href.normalize.request_uri)
-              zip.fopen(path.to_s).read
+              zip.fopen(path).read
             }
           end
 
+          def nav?
+            properties.include? 'nav'
+          end
+
           # @todo Handle circular fallback chain
           def use_fallback_chain(options = {})
             supported = EPUB::MediaType::CORE
             if ad = options[:supported]
               supported = supported | (ad.respond_to?(:to_ary) ? ad : [ad])
@@ -80,9 +84,14 @@
             if (bindings = manifest.package.bindings) && (binding_media_type = bindings[media_type])
               return yield binding_media_type.handler
             end
             return fallback.use_fallback_chain(options) {|fb| yield fb} if fallback
             raise EPUB::MediaType::UnsupportedError
+          end
+
+          def content_document
+            return nil unless %w[application/xhtml+xml image/svg+xml].include? media_type
+            @content_document ||= Parser::ContentDocument.parse(self)
           end
 
           protected
 
           def traverse_fallback_chain(chain)