Refactoring node location

lib/webrat/core/elements/element.rb

@@ -9,6 +9,7 @@ def self.load_all(session, dom)
     end
 
     def self.load(session, element)
+      return nil if element.nil?
       session.elements[Webrat::XML.xpath_to(element)] ||= self.new(session, element)
     end
 

lib/webrat/core/elements/field.rb

@@ -26,6 +26,31 @@ def self.inherited(klass)
       # raise args.inspect
     end
 
+    def self.load(session, element)
+      return nil if element.nil?
+      session.elements[Webrat::XML.xpath_to(element)] ||= field_class(element).new(session, element)
+    end
+
+    def self.field_class(element)
+      case element.name
+      when "button"   then ButtonField
+      when "select"   then SelectField
+      when "textarea" then TextareaField
+      else
+        case Webrat::XML.attribute(element, "type")
+        when "checkbox" then CheckboxField
+        when "hidden"   then HiddenField
+        when "radio"    then RadioField
+        when "password" then PasswordField
+        when "file"     then FileField
+        when "reset"    then ResetField
+        when "submit"   then ButtonField
+        when "image"    then ButtonField
+        else  TextField
+        end
+      end
+    end
+
     def initialize(*args)
       super
       @value = default_value
@@ -82,7 +107,7 @@ def unset
   protected
 
     def form
-      @session.element_to_webrat_element(form_element)
+      Form.load(@session, form_element)
     end
 
     def form_element

lib/webrat/core/elements/select_option.rb

@@ -23,7 +23,7 @@ def choose
   protected
 
     def select
-      @session.element_to_webrat_element(select_element)
+      SelectField.load(@session, select_element)
     end
 
     def select_element

lib/webrat/core/locators.rb

@@ -12,13 +12,7 @@ module Webrat
   module Locators
 
     def field_by_xpath(xpath)
-      element_to_webrat_element(Webrat::XML.xpath_at(dom, xpath))
-    end
-
-    def element_to_webrat_element(element)
-      @session.element_to_webrat_element(element)
-      return nil if element.nil?
-      @session.elements[Webrat::XML.xpath_to(element)]
+      Field.load(@session, Webrat::XML.xpath_at(dom, xpath))
     end
 
   end

lib/webrat/core/locators/area_locator.rb

@@ -6,7 +6,7 @@ module Locators
     class AreaLocator < Locator
 
       def locate
-        @scope.element_to_webrat_element(area_element)
+        Area.load(@scope.session, area_element)
       end
 
       def area_element

lib/webrat/core/locators/button_locator.rb

@@ -6,7 +6,7 @@ module Locators
     class ButtonLocator < Locator
 
       def locate
-        @scope.element_to_webrat_element(button_element)
+        ButtonField.load(@scope.session, button_element)
       end
 
       def button_element

lib/webrat/core/locators/field_by_id_locator.rb

@@ -6,7 +6,7 @@ module Locators
     class FieldByIdLocator < Locator
 
       def locate
-        @scope.element_to_webrat_element(field_element)
+        Field.load(@scope.session, field_element)
       end
 
       def field_element

lib/webrat/core/locators/field_labeled_locator.rb

@@ -29,7 +29,7 @@ def matching_fields
 
       def matching_labels
         matching_label_elements.map do |label_element|
-          @scope.element_to_webrat_element(label_element)
+          Label.load(@scope.session, label_element)
         end
       end
 

lib/webrat/core/locators/field_named_locator.rb

@@ -6,7 +6,7 @@ module Locators
     class FieldNamedLocator < Locator
 
       def locate
-        @scope.element_to_webrat_element(field_element)
+        Field.load(@scope.session, field_element)
       end
 
       def field_element

lib/webrat/core/locators/label_locator.rb

@@ -7,7 +7,7 @@ module Locators
     class LabelLocator < Locator
 
       def locate
-        @scope.element_to_webrat_element(label_element)
+        Label.load(@scope.session, label_element)
       end
 
       def label_element

lib/webrat/core/locators/link_locator.rb

@@ -6,7 +6,7 @@ module Locators
     class LinkLocator < Locator
 
       def locate
-        @scope.element_to_webrat_element(link_element)
+        Link.load(@scope.session, link_element)
       end
 
       def link_element

lib/webrat/core/scope.rb

@@ -25,6 +25,8 @@ def self.from_scope(session, scope, selector) #:nodoc:
       end
     end
 
+    attr_reader :session
+
     def initialize(session, &block) #:nodoc:
       @session = session
       instance_eval(&block) if block_given?

lib/webrat/core/session.rb

@@ -43,11 +43,6 @@ def initialize(context = nil) #:nodoc:
 
       reset
     end
-
-    def element_to_webrat_element(element)
-      return nil if element.nil?
-      elements[Webrat::XML.xpath_to(element)]
-    end
 
     # Saves the page out to RAILS_ROOT/tmp/ and opens it in the default
     # web browser if on OS X. Useful for debugging.