Support implicit and explicit content types

actionpack/lib/action_controller/new_base.rb

 module ActionController
+  autoload :ContentType,          "action_controller/new_base/content_type"
   autoload :HideActions,          "action_controller/new_base/hide_actions"
   autoload :Http,                 "action_controller/new_base/base"
   autoload :Layouts,              "action_controller/new_base/layouts"

actionpack/lib/action_controller/new_base/content_type.rb

+module ActionController
+  module ContentType
+    
+    def render_to_body(options = {})
+      if content_type = options[:content_type]
+        response.content_type = content_type
+      end
+      
+      ret = super
+      response.content_type ||= options[:_template].mime_type
+      ret
+    end
+
+  end
+end
\ No newline at end of file

actionpack/lib/action_view/template/text.rb

@@ -3,7 +3,6 @@ class TextTemplate < String #:nodoc:
     
     def render(*) self end
     
-    def exempt_from_layout?() false end
-    
+    def mime_type() Mime::HTML end
   end
 end

actionpack/test/controller/content_type_test.rb

 require 'abstract_unit'
 
 class ContentTypeController < ActionController::Base
+  # :ported:
   def render_content_type_from_body
     response.content_type = Mime::RSS
     render :text => "hello world!"
   end
 
+  # :ported:
   def render_defaults
     render :text => "hello world!"
   end
 
+  # :ported:
   def render_content_type_from_render
     render :text => "hello world!", :content_type => Mime::RSS
   end
 
+  # :ported:
   def render_charset_from_body
     response.charset = "utf-16"
     render :text => "hello world!"
   end
 
+  # :ported:
   def render_nil_charset_from_body
     response.charset = nil
     render :text => "hello world!"
@@ -60,6 +65,7 @@ def setup
     @controller.logger = Logger.new(nil)
   end
 
+  # :ported:
   def test_render_defaults
     get :render_defaults
     assert_equal "utf-8", @response.charset
@@ -74,24 +80,28 @@ def test_render_changed_charset_default
     ContentTypeController.default_charset = "utf-8"
   end
 
+  # :ported:
   def test_content_type_from_body
     get :render_content_type_from_body
     assert_equal "application/rss+xml", @response.content_type
     assert_equal "utf-8", @response.charset
   end
 
+  # :ported:
   def test_content_type_from_render
     get :render_content_type_from_render
     assert_equal "application/rss+xml", @response.content_type
     assert_equal "utf-8", @response.charset
   end
 
+  # :ported:
   def test_charset_from_body
     get :render_charset_from_body
     assert_equal Mime::HTML, @response.content_type
     assert_equal "utf-16", @response.charset
   end
 
+  # :ported:
   def test_nil_charset_from_body
     get :render_nil_charset_from_body
     assert_equal Mime::HTML, @response.content_type

actionpack/test/new_base/content_type_test.rb

+require File.join(File.expand_path(File.dirname(__FILE__)), "test_helper")
+
+module ContentType
+  class BaseController < ActionController::Base2
+    def index
+      render :text => "Hello world!"
+    end
+    
+    def set_on_response_obj
+      response.content_type = Mime::RSS
+      render :text => "Hello world!"
+    end
+    
+    def set_on_render
+      render :text => "Hello world!", :content_type => Mime::RSS
+    end
+  end
+  
+  class TestDefault < SimpleRouteCase
+    describe "a default response is HTML and UTF8"
+    
+    get "/content_type/base"
+    assert_body   "Hello world!"
+    assert_header "Content-Type", "text/html; charset=utf-8"
+  end
+  
+  class TestSetOnResponseObj < SimpleRouteCase
+    describe "setting the content type of the response directly on the response object"
+    
+    get "/content_type/base/set_on_response_obj"
+    assert_body   "Hello world!"
+    assert_header "Content-Type", "application/rss+xml; charset=utf-8"
+  end
+  
+  class TestSetOnRender < SimpleRouteCase
+    describe "setting the content type of the response as an option to render"
+    
+    get "/content_type/base/set_on_render"
+    assert_body   "Hello world!"
+    assert_header "Content-Type", "application/rss+xml; charset=utf-8"
+  end
+  
+  class ImpliedController < ActionController::Base2
+    self.view_paths = [ActionView::Template::FixturePath.new(
+      "content_type/implied/i_am_html_erb.html.erb"         => "Hello world!",
+      "content_type/implied/i_am_xml_erb.xml.erb"          => "<xml>Hello world!</xml>",
+      "content_type/implied/i_am_html_builder.html.builder" => "xml.p 'Hello'",
+      "content_type/implied/i_am_xml_builder.xml.builder"  => "xml.awesome 'Hello'"
+    )]
+    
+    def i_am_html_erb()     end
+    def i_am_xml_erb()      end
+    def i_am_html_builder() end
+    def i_am_xml_builder()  end
+  end
+  
+  class TestImpliedController < SimpleRouteCase
+    describe "the template's mime type is used if no content_type is specified"
+    
+    test "sets Content-Type as text/html when rendering *.html.erb" do
+      get "/content_type/implied/i_am_html_erb"
+      assert_header "Content-Type", "text/html; charset=utf-8"
+    end
+
+    test "sets Content-Type as application/xml when rendering *.xml.erb" do
+      get "/content_type/implied/i_am_xml_erb"
+      assert_header "Content-Type", "application/xml; charset=utf-8"
+    end
+
+    test "sets Content-Type as text/html when rendering *.html.builder" do
+      get "/content_type/implied/i_am_html_builder"
+      assert_header "Content-Type", "text/html; charset=utf-8"
+    end
+
+    test "sets Content-Type as application/xml when rendering *.xml.builder" do
+      get "/content_type/implied/i_am_xml_builder"
+      assert_header "Content-Type", "application/xml; charset=utf-8"
+    end
+    
+  end
+end
+
+module Charset
+  class BaseController < ActionController::Base2
+    def set_on_response_obj
+      response.charset = "utf-16"
+      render :text => "Hello world!"
+    end
+    
+    def set_as_nil_on_response_obj
+      response.charset = nil
+      render :text => "Hello world!"
+    end
+  end
+  
+  class TestSetOnResponseObj < SimpleRouteCase
+    describe "setting the charset of the response directly on the response object"
+    
+    get "/charset/base/set_on_response_obj"
+    assert_body   "Hello world!"
+    assert_header "Content-Type", "text/html; charset=utf-16"
+  end
+  
+  class TestSetAsNilOnResponseObj < SimpleRouteCase
+    describe "setting the charset of the response as nil directly on the response object"
+    
+    get "/charset/base/set_as_nil_on_response_obj"
+    assert_body   "Hello world!"
+    assert_header "Content-Type", "text/html; charset=utf-8"
+  end
+end
\ No newline at end of file

actionpack/test/new_base/test_helper.rb

@@ -42,6 +42,7 @@ class Base2 < Http
     use ActionController::UrlFor
     use ActionController::Renderer
     use ActionController::Layouts
+    use ActionController::ContentType
     
     def self.inherited(klass)
       ::ActionController::Base2.subclasses << klass.to_s