Refactor ActionView::Path

  * Decouple from ActionController and ActionMailer
  * Bring back localization support.
  * Prepare to decouple templates from the filesystem.
  * Prepare to decouple localization from ActionView
  * Fix ActionMailer to take advantage of ActionView::Path

actionmailer/lib/action_mailer/base.rb

@@ -465,48 +465,48 @@ def initialize(method_name=nil, *parameters) #:nodoc:
     def create!(method_name, *parameters) #:nodoc:
       initialize_defaults(method_name)
       __send__(method_name, *parameters)
-
+      
       # If an explicit, textual body has not been set, we check assumptions.
       unless String === @body
         # First, we look to see if there are any likely templates that match,
         # which include the content-type in their file name (i.e.,
         # "the_template_file.text.html.erb", etc.). Only do this if parts
         # have not already been specified manually.
-        if @parts.empty?
-          Dir.glob("#{template_path}/#{@template}.*").each do |path|
-            template = template_root.find_by_parts("#{mailer_name}/#{File.basename(path)}")
-
-            # Skip unless template has a multipart format
-            next unless template && template.multipart?
-
+        # if @parts.empty?
+          template_root.find_all_by_parts(@template, {}, template_path).each do |template|
             @parts << Part.new(
-              :content_type => template.content_type,
+              :content_type => Mime::Type.lookup_by_extension(template.content_type || "text").to_s,
               :disposition => "inline",
               :charset => charset,
               :body => render_template(template, @body)
             )
           end
-          unless @parts.empty?
+
+          if @parts.size > 1
             @content_type = "multipart/alternative" if @content_type !~ /^multipart/
             @parts = sort_parts(@parts, @implicit_parts_order)
           end
-        end
-
+        # end
+        
         # Then, if there were such templates, we check to see if we ought to
         # also render a "normal" template (without the content type). If a
         # normal template exists (or if there were no implicit parts) we render
         # it.
-        template_exists = @parts.empty?
-        template_exists ||= template_root.find_by_parts("#{mailer_name}/#{@template}")
-        @body = render_message(@template, @body) if template_exists
+        # ====
+        # TODO: Revisit this
+        # template_exists = @parts.empty?
+        # template_exists ||= template_root.find_by_parts("#{mailer_name}/#{@template}")
+        # @body = render_message(@template, @body) if template_exists
 
         # Finally, if there are other message parts and a textual body exists,
         # we shift it onto the front of the parts and set the body to nil (so
         # that create_mail doesn't try to render it in addition to the parts).
-        if !@parts.empty? && String === @body
-          @parts.unshift Part.new(:charset => charset, :body => @body)
-          @body = nil
-        end
+        # ====
+        # TODO: Revisit this
+        # if [email protected]? && String === @body
+        #   @parts.unshift Part.new(:charset => charset, :body => @body)
+        #   @body = nil
+        # end
       end
 
       # If this is a multipart e-mail add the mime_version if it is not
@@ -580,7 +580,7 @@ def render(opts)
 
           if file
             prefix = mailer_name unless file =~ /\//
-            template = view_paths.find_by_parts(file, formats, prefix)
+            template = view_paths.find_by_parts(file, {:formats => formats}, prefix)
           end
 
           layout = _pick_layout(layout, 
@@ -611,7 +611,7 @@ def template_root=(root)
       end
 
       def template_path
-        "#{template_root}/#{mailer_name}"
+        "#{mailer_name}"
       end
 
       def initialize_template_class(assigns)
@@ -622,7 +622,7 @@ def initialize_template_class(assigns)
 
       def sort_parts(parts, order = [])
         order = order.collect { |s| s.downcase }
-
+        
         parts = parts.sort do |a, b|
           a_ct = a.content_type.downcase
           b_ct = b.content_type.downcase
@@ -663,10 +663,13 @@ def create_mail
         headers.each { |k, v| m[k] = v }
 
         real_content_type, ctype_attrs = parse_content_type
-
+        
         if @parts.empty?
           m.set_content_type(real_content_type, nil, ctype_attrs)
           m.body = normalize_new_lines(body)
+        elsif @parts.size == 1 && @parts.first.parts.empty?
+          m.set_content_type(real_content_type, nil, ctype_attrs)
+          m.body = normalize_new_lines(@parts.first.body)
         else
           if String === body
             part = TMail::Mail.new

actionmailer/lib/action_mailer/vendor/tmail-1.2.3/tmail/mail.rb

@@ -518,6 +518,7 @@ def content_type_is_text?
 
     def parse_body( f = nil )
       return if @body_parsed
+
       if f
         parse_body_0 f
       else

actionmailer/test/mail_service_test.rb

@@ -338,6 +338,7 @@ def test_nested_parts
 
   def test_nested_parts_with_body
     created = nil
+    TestMailer.create_nested_multipart_with_body(@recipient)
     assert_nothing_raised { created = TestMailer.create_nested_multipart_with_body(@recipient)}
     assert_equal 1,created.parts.size
     assert_equal 2,created.parts.first.parts.size
@@ -351,8 +352,8 @@ def test_nested_parts_with_body
 
   def test_attachment_with_custom_header
     created = nil
-    assert_nothing_raised { created = TestMailer.create_attachment_with_custom_header(@recipient)}
-    assert_equal "<[email protected]>", created.parts[1].header['content-id'].to_s
+    assert_nothing_raised { created = TestMailer.create_attachment_with_custom_header(@recipient) }
+    assert created.parts.any? { |p| p.header['content-id'].to_s == "<[email protected]>" }
   end
 
   def test_signed_up
@@ -824,7 +825,7 @@ def test_implicitly_multipart_messages
     assert_equal 3, mail.parts.length
     assert_equal "1.0", mail.mime_version
     assert_equal "multipart/alternative", mail.content_type
-    assert_equal "text/yaml", mail.parts[0].content_type
+    assert_equal "application/x-yaml", mail.parts[0].content_type
     assert_equal "utf-8", mail.parts[0].sub_header("content-type", "charset")
     assert_equal "text/plain", mail.parts[1].content_type
     assert_equal "utf-8", mail.parts[1].sub_header("content-type", "charset")
@@ -835,11 +836,11 @@ def test_implicitly_multipart_messages
   def test_implicitly_multipart_messages_with_custom_order
     assert ActionView::Template.template_handler_extensions.include?("bak"), "bak extension was not registered"
 
-    mail = TestMailer.create_implicitly_multipart_example(@recipient, nil, ["text/yaml", "text/plain"])
+    mail = TestMailer.create_implicitly_multipart_example(@recipient, nil, ["application/x-yaml", "text/plain"])
     assert_equal 3, mail.parts.length
     assert_equal "text/html", mail.parts[0].content_type
     assert_equal "text/plain", mail.parts[1].content_type
-    assert_equal "text/yaml", mail.parts[2].content_type
+    assert_equal "application/x-yaml", mail.parts[2].content_type
   end
 
   def test_implicitly_multipart_messages_with_charset
@@ -938,8 +939,7 @@ def test_deliver_with_mail_object
   def test_multipart_with_template_path_with_dots
     mail = FunkyPathMailer.create_multipart_with_template_path_with_dots(@recipient)
     assert_equal 2, mail.parts.length
-    assert_equal 'text/plain', mail.parts[0].content_type
-    assert_equal 'utf-8', mail.parts[0].charset
+    assert mail.parts.any? {|part| part.content_type == "text/plain" && part.charset == "utf-8"}
   end
 
   def test_custom_content_type_attributes

actionpack/lib/action_controller/abstract/layouts.rb

@@ -38,7 +38,7 @@ def _write_layout_method
         else
           self.class_eval %{
             def _layout
-              if view_paths.find_by_parts?("#{_implied_layout_name}", formats, "layouts")
+              if view_paths.find_by_parts?("#{_implied_layout_name}", {:formats => formats}, "layouts")
                 "#{_implied_layout_name}"
               else
                 super
@@ -62,7 +62,7 @@ def _layout_for_name(name)
         raise ArgumentError, "String, false, or nil expected; you passed #{name.inspect}"
       end
 
-      name && view_paths.find_by_parts(name, formats, "layouts")
+      name && view_paths.find_by_parts(name, {:formats => formats}, "layouts")
     end
 
     def _default_layout(require_layout = false)

actionpack/lib/action_controller/abstract/renderer.rb

@@ -29,7 +29,7 @@ def render(options = {})
     def render_to_body(options = {})
       name = options[:_template_name] || action_name
 
-      template = options[:_template] || view_paths.find_by_parts(name.to_s, formats, options[:_prefix])
+      template = options[:_template] || view_paths.find_by_parts(name.to_s, {:formats => formats}, options[:_prefix])
       _render_template(template, options)
     end
 

actionpack/lib/action_controller/base/layout.rb

@@ -182,7 +182,7 @@ def default_layout(*args)
       def memoized_find_layout(layout, formats) #:nodoc:
         return layout if layout.nil? || layout.respond_to?(:render)
         prefix = layout.to_s =~ /layouts\// ? nil : "layouts"
-        view_paths.find_by_parts(layout.to_s, formats, prefix)
+        view_paths.find_by_parts(layout.to_s, {:formats => formats}, prefix)
       end
 
       def find_layout(*args)

actionpack/lib/action_controller/base/render.rb

@@ -374,8 +374,13 @@ def render_for_name(name, layout, options)
         render_for_file(name.sub(/^\//, ''), [layout, true], options)
       end
     end
-
+
+    # ==== Arguments
+    # parts<Array[String, Array[Symbol*], String, Boolean]>::
+    #     Example: ["show", [:html, :xml], "users", false]
     def render_for_parts(parts, layout, options = {})
+      parts[1] = {:formats => parts[1], :locales => [I18n.locale]}
+
       tmp = view_paths.find_by_parts(*parts)
 
       layout = _pick_layout(*layout) unless tmp.exempt_from_layout?

actionpack/lib/action_view/paths.rb

@@ -33,18 +33,18 @@ def unshift(*objs)
       super(*objs.map { |obj| self.class.type_cast(obj) })
     end
 
-    def find_by_parts(path, extension = nil, prefix = nil, partial = false)
+    def find_by_parts(path, details = {}, prefix = nil, partial = false)
       template_path = path.sub(/^\//, '')
 
       each do |load_path|
-        if template = load_path.find_by_parts(template_path, extension, prefix, partial)
+        if template = load_path.find_by_parts(template_path, details, prefix, partial)
           return template
         end
       end
 
       Template.new(path, self)
     rescue ActionView::MissingTemplate => e
-      extension ||= []
+      extension = details[:formats] || []
       raise ActionView::MissingTemplate.new(self, "#{prefix}/#{path}.{#{extension.join(",")}}")
     end
 

actionpack/lib/action_view/render/partials.rb

@@ -187,6 +187,7 @@ def _render_partial(options = {}) #:nodoc:
           path = ActionController::RecordIdentifier.partial_path(object, controller_path)
         end
         _, _, prefix, object = parts = partial_parts(path, options)
+        parts[1] = {:formats => parts[1]}
         template = find_by_parts(*parts)
         _render_partial_object(template, options, (object unless object == true))
       end
@@ -225,7 +226,7 @@ def _render_partial_with_block(layout, block, options)
       def _render_partial_with_layout(layout, options)
         if layout
           prefix = controller && !layout.include?("/") ? controller.controller_path : nil
-          layout = find_by_parts(layout, formats, prefix, true)
+          layout = find_by_parts(layout, {:formats => formats}, prefix, true)
         end
         content = _render_partial(options)
         return _render_content_with_layout(content, layout, options[:locals])
@@ -253,7 +254,7 @@ def _render_partial_with_block(layout, block, options)
       def _render_partial_with_layout(layout, options)
         if layout
           prefix = controller && !layout.include?("/") ? controller.controller_path : nil
-          layout = find_by_parts(layout, formats, prefix, true)
+          layout = find_by_parts(layout, {:formats => formats}, prefix, true)
         end
         content = _render_partial(options)
         return _render_content_with_layout(content, layout, options[:locals])
@@ -321,7 +322,7 @@ def _render_partial_collection(collection, options = {}, passed_template = nil)
 
       def _pick_partial_template(partial_path) #:nodoc:
         prefix = controller_path unless partial_path.include?('/')
-        find_by_parts(partial_path, formats, prefix, true)
+        find_by_parts(partial_path, {:formats => formats}, prefix, true)
       end
       memoize :_pick_partial_template
   end

actionpack/lib/action_view/render/rendering.rb

@@ -23,10 +23,10 @@ def render(options = {}, local_assigns = {}, &block) #:nodoc:
         return _render_partial_with_layout(layout, options) if options.key?(:partial)
         return _render_partial_with_block(layout, block, options) if block_given?
 
-        layout = find_by_parts(layout, formats) if layout
+        layout = find_by_parts(layout, {:formats => formats}) if layout
 
         if file = options[:file]
-          template = find_by_parts(file, formats)
+          template = find_by_parts(file, {:formats => formats})
           _render_template_with_layout(template, layout, :locals => options[:locals])
         elsif inline = options[:inline]
           _render_inline(inline, layout, options)

actionpack/lib/action_view/template/handlers.rb

@@ -16,6 +16,10 @@ def self.extended(base)
 
     @@template_handlers = {}
     @@default_template_handlers = nil
+
+    def self.extensions
+      @@template_handlers.keys
+    end
 
     # Register a class that knows how to handle template files with the given
     # extension. This can be used to implement new template types.