Moved template handler registration into a mix-in module.

actionpack/lib/action_view.rb

@@ -21,12 +21,7 @@
 # WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 #++
 
-require 'action_view/template_handler'
-require 'action_view/template_handlers/compilable'
-require 'action_view/template_handlers/builder'
-require 'action_view/template_handlers/erb'
-require 'action_view/template_handlers/rjs'
-
+require 'action_view/template_handlers'
 require 'action_view/template_finder'
 require 'action_view/template'
 require 'action_view/partial_template'

actionpack/lib/action_view/template.rb

 module ActionView #:nodoc:
   class Template #:nodoc:
+    extend TemplateHandlers
 
     attr_accessor :locals
     attr_reader :handler, :path, :extension, :filename, :path_without_extension, :method
@@ -13,7 +14,7 @@ def initialize(view, path, use_full_path, locals = {})
       @view.first_render ||= @path
       @source = nil # Don't read the source until we know that it is required
       set_extension_and_file_name(use_full_path)
-      
+
       @locals = locals || {}
       @handler = self.class.handler_class_for_extension(@extension).new(@view)
     end
@@ -29,7 +30,7 @@ def render_template
         raise TemplateError.new(self, @view.assigns, e)
       end
     end
-    
+
     def render
       prepare!
       @handler.render(self)
@@ -46,11 +47,11 @@ def method_key
     def base_path_for_exception
       @finder.find_base_path_for("#{@path_without_extension}.#{@extension}") || @finder.view_paths.first
     end
-    
+
     def prepare!
       @view.send :evaluate_assigns
       @view.current_render_extension = @extension
-      
+
       if @handler.compilable?
         @handler.compile_template(self) # compile the given template, if necessary
         @method = @view.method_names[method_key] # Set the method name for this template and run it
@@ -58,70 +59,30 @@ def prepare!
     end
 
     private
-
-    def set_extension_and_file_name(use_full_path)
-      @path_without_extension, @extension = @finder.path_and_extension(@path)
-      if use_full_path
-        if @extension
-          @filename = @finder.pick_template(@path_without_extension, @extension)
+      def set_extension_and_file_name(use_full_path)
+        @path_without_extension, @extension = @finder.path_and_extension(@path)
+        if use_full_path
+          if @extension
+            @filename = @finder.pick_template(@path_without_extension, @extension)
+          else
+            @extension = @finder.pick_template_extension(@path).to_s
+            raise_missing_template_exception unless @extension
+
+            @filename = @finder.pick_template(@path, @extension)
+            @extension = @extension.gsub(/^.+\./, '') # strip off any formats
+          end
         else
-          @extension = @finder.pick_template_extension(@path).to_s
-          raise_missing_template_exception unless @extension
-          
-          @filename = @finder.pick_template(@path, @extension)
-          @extension = @extension.gsub(/^.+\./, '') # strip off any formats
+          @filename = @path
         end
-      else
-        @filename = @path
-      end
-
-      raise_missing_template_exception if @filename.blank?
-    end
-    
-    def raise_missing_template_exception
-      full_template_path = @path.include?('.') ? @path : "#{@path}.#{@view.template_format}.erb"
-      display_paths = @finder.view_paths.join(':')
-      template_type = (@path =~ /layouts/i) ? 'layout' : 'template'
-      raise(MissingTemplate, "Missing #{template_type} #{full_template_path} in view path #{display_paths}")
-    end
 
-    # Template Handlers
-    
-    @@template_handlers = HashWithIndifferentAccess.new
-    @@default_template_handlers = nil
-    
-    # Register a class that knows how to handle template files with the given
-    # extension. This can be used to implement new template types.
-    # The constructor for the class must take the ActiveView::Base instance
-    # as a parameter, and the class must implement a +render+ method that
-    # takes the contents of the template to render as well as the Hash of
-    # local assigns available to the template. The +render+ method ought to
-    # return the rendered template as a string.
-    def self.register_template_handler(extension, klass)
-      @@template_handlers[extension.to_sym] = klass
-      ActionView::TemplateFinder.reload!
-    end
-
-    def self.template_handler_extensions
-      @@template_handlers.keys.map(&:to_s).sort
-    end
-
-    def self.register_default_template_handler(extension, klass)
-      register_template_handler(extension, klass)
-      @@default_template_handlers = klass
-    end
-
-    def self.handler_class_for_extension(extension)
-      (extension && @@template_handlers[extension.to_sym]) || @@default_template_handlers
-    end
-
-    register_default_template_handler :erb, TemplateHandlers::ERB
-    register_template_handler :rjs, TemplateHandlers::RJS
-    register_template_handler :builder, TemplateHandlers::Builder
+        raise_missing_template_exception if @filename.blank?
+      end
 
-    # TODO: Depreciate old template extensions
-    register_template_handler :rhtml, TemplateHandlers::ERB
-    register_template_handler :rxml, TemplateHandlers::Builder
-    
+      def raise_missing_template_exception
+        full_template_path = @path.include?('.') ? @path : "#{@path}.#{@view.template_format}.erb"
+        display_paths = @finder.view_paths.join(':')
+        template_type = (@path =~ /layouts/i) ? 'layout' : 'template'
+        raise(MissingTemplate, "Missing #{template_type} #{full_template_path} in view path #{display_paths}")
+      end
   end
 end

actionpack/lib/action_view/template_handler.rb

 module ActionView
   class TemplateHandler
-
     def self.line_offset
       0
     end