Cleaning up the Rails session code. Extract scoped_html method in Scope

lib/webrat/core/scope.rb

@@ -165,19 +165,21 @@ module Webrat
     alias_method :click_button, :clicks_button
     
     def dom # :nodoc:
-      return @dom if defined?(@dom) && @dom
-      @dom = Hpricot(@html)
-      
-      if @selector
-        html = (@dom / @selector).first.to_html
-        @dom = Hpricot(html)
-      end
-      
-      return @dom
+      @dom ||= Hpricot(scoped_html)
     end
     
   protected
   
+    def scoped_html
+      @scoped_html ||= begin
+        if @selector
+          (Hpricot(@html) / @selector).first.to_html
+        else
+          @html
+        end
+      end
+    end
+  
     def find_select_option(option_text, id_or_name_or_label)
       if id_or_name_or_label
         field = find_field(id_or_name_or_label, SelectField)

lib/webrat/core/session.rb

@@ -109,6 +109,11 @@ module Webrat
       yield Scope.new(self, response_body, selector)
     end
     
+    # Issues a GET request for a page, follows any redirects, and verifies the final page
+    # load was successful.
+    #
+    # Example:
+    #   visits "/"
     def visits(url = nil, http_method = :get, data = {})
       request_page(url, http_method, data)
     end
@@ -136,6 +141,5 @@ module Webrat
     def_delegators :current_scope, :click_post_link,    :clicks_post_link
     def_delegators :current_scope, :click_put_link,     :clicks_put_link
     def_delegators :current_scope, :click_button,       :clicks_button
-    
   end
 end

lib/webrat/rails/session.rb

@@ -6,15 +6,6 @@ module ActionController
         include Webrat::RedirectActions
       end
 
-      # Issues a GET request for a page, follows any redirects, and verifies the final page
-      # load was successful.
-      #
-      # Example:
-      #   visits "/"
-      def visits(*args)
-        webrat_session.visits(*args)
-      end
-
       def respond_to?(name)
         super || webrat_session.respond_to?(name)
       end
@@ -32,6 +23,7 @@ module ActionController
       def webrat_session
         @webrat_session ||= Webrat::RailsSession.new(self)
       end
+      
     end
   end
 end