Added the :rjs render option

actionpack/lib/action_controller/new_base/base.rb

@@ -13,6 +13,7 @@ class Base < Http
     include ActionController::Renderer
     include ActionController::Renderers::Json
     include ActionController::Renderers::Xml
+    include ActionController::Renderers::Rjs
     include ActionController::Layouts
     include ActionController::ConditionalGet
 
@@ -74,7 +75,7 @@ def self.app_loaded!
       end
     end
 
-    def _normalize_options(action = nil, options = {})
+    def _normalize_options(action = nil, options = {}, &blk)
       if action.is_a?(Hash)
         options, action = action, nil 
       elsif action.is_a?(String) || action.is_a?(Symbol)
@@ -93,19 +94,20 @@ def _normalize_options(action = nil, options = {})
       end
 
       if options[:status]
-        options[:status] = interpret_status(options.delete(:status)).to_i
+        options[:status] = interpret_status(options[:status]).to_i
       end
 
+      options[:update] = blk if block_given?
       options
     end
 
-    def render(action = nil, options = {})
-      options = _normalize_options(action, options)
+    def render(action = nil, options = {}, &blk)
+      options = _normalize_options(action, options, &blk)
       super(options)
     end
 
-    def render_to_string(action = nil, options = {})
-      options = _normalize_options(action, options)
+    def render_to_string(action = nil, options = {}, &blk)
+      options = _normalize_options(action, options, &blk)
       super(options)
     end
 

actionpack/lib/action_controller/new_base/render_options.rb

@@ -71,5 +71,16 @@ def _render_xml(xml, options)
         self.response_body  = xml.respond_to?(:to_xml) ? xml.to_xml : xml
       end
     end
+
+    module Rjs
+      include RenderOption
+      register_renderer :update
+
+      def _render_update(proc, options)
+        generator = ActionView::Helpers::PrototypeHelper::JavaScriptGenerator.new(_action_view, &proc)
+        response.content_type = Mime::JS
+        self.response_body = generator.to_s
+      end
+    end
   end
 end

actionpack/lib/action_view/base.rb

@@ -269,15 +269,16 @@ def punctuate_body!(part)
       nil
     end
 
-    private
-      # Evaluates the local assigns and controller ivars, pushes them to the view.
-      def _evaluate_assigns_and_ivars #:nodoc:
-        unless @assigns_added
-          @assigns.each { |key, value| instance_variable_set("@#{key}", value) }
-          _copy_ivars_from_controller
-          @assigns_added = true
-        end
+    # Evaluates the local assigns and controller ivars, pushes them to the view.
+    def _evaluate_assigns_and_ivars #:nodoc:
+      unless @assigns_added
+        @assigns.each { |key, value| instance_variable_set("@#{key}", value) }
+        _copy_ivars_from_controller
+        @assigns_added = true
       end
+    end
+
+    private
 
       def _copy_ivars_from_controller #:nodoc:
         if @controller

actionpack/lib/action_view/helpers/prototype_helper.rb

@@ -1,5 +1,6 @@
 require 'set'
 require 'active_support/json'
+require 'active_support/core_ext/object/extending'
 
 module ActionView
   module Helpers
@@ -572,6 +573,7 @@ def observe_form(form_id, options = {})
       # #include_helpers_from_context has nothing to overwrite.
       class JavaScriptGenerator #:nodoc:
         def initialize(context, &block) #:nodoc:
+          context._evaluate_assigns_and_ivars
           @context, @lines = context, []
           include_helpers_from_context
           @context.with_output_buffer(@lines) do

actionpack/lib/action_view/template/handler.rb

@@ -1,4 +1,5 @@
 require "active_support/core_ext/class/inheritable_attributes"
+require "action_dispatch/http/mime_type"
 
 # Legacy TemplateHandler stub
 module ActionView

actionpack/test/controller/render_other_test.rb

@@ -103,6 +103,14 @@ def render_alternate_default
   end  
 
 private
+  def default_render
+    if @alternate_default_render
+      @alternate_default_render.call
+    else
+      super
+    end
+  end
+
   def determine_layout
     case action_name
       when "render_js_with_explicit_template",

actionpack/test/template/javascript_helper_test.rb

@@ -3,13 +3,17 @@
 class JavaScriptHelperTest < ActionView::TestCase
   tests ActionView::Helpers::JavaScriptHelper
 
+  def _evaluate_assigns_and_ivars() end
+
   attr_accessor :formats, :output_buffer
 
   def setup
     super
     @template = self
   end
 
+  def _evaluate_assigns_and_ivars() end
+
   def test_escape_javascript
     assert_equal '', escape_javascript(nil)
     assert_equal %(This \\"thing\\" is really\\n netos\\'), escape_javascript(%(This "thing" is really\n netos'))

actionpack/test/template/prototype_helper_test.rb

@@ -61,6 +61,8 @@ def create_generator
 end
 
 class PrototypeHelperTest < PrototypeHelperBaseTest
+  def _evaluate_assigns_and_ivars() end
+
   def setup
     @record = @author = Author.new
     @article = Article.new
@@ -304,6 +306,8 @@ def setup
     @generator = create_generator
   end
 
+  def _evaluate_assigns_and_ivars() end
+
   def test_insert_html_with_string
     assert_equal 'Element.insert("element", { top: "\\u003Cp\\u003EThis is a test\\u003C/p\\u003E" });',
       @generator.insert_html(:top, 'element', '<p>This is a test</p>')