Bring ControllerHelpers respond_with from spree

lib/spree/core/controller_helpers/respond_with.rb

@@ -0,0 +1,70 @@
+module ActionController
+  class Base
+    def respond_with(*resources, &block)
+      raise "In order to use respond_with, first you need to declare the formats your " <<
+            "controller responds to in the class level" if self.class.mimes_for_respond_to.empty?
+
+      if collector = retrieve_collector_from_mimes(&block)
+        options = resources.size == 1 ? {} : resources.extract_options!
+
+        if defined_response = collector.response and !Spree::BaseController.spree_responders.keys.include?(self.class.to_s.to_sym)
+          if action = options.delete(:action)
+            render :action => action
+          else
+            defined_response.call
+          end
+        else
+          # The action name is needed for processing
+          options.merge!(:action_name => action_name.to_sym)
+          # If responder is not specified then pass in Spree::Responder
+          (options.delete(:responder) || Spree::Responder).call(self, resources, options)
+        end
+      end
+    end
+  end
+end
+
+module Spree
+  module Core
+    module ControllerHelpers
+      module RespondWith
+        extend ActiveSupport::Concern
+
+        included do
+          cattr_accessor :spree_responders
+          self.spree_responders = {}
+        end
+
+        module ClassMethods
+          def clear_overrides!
+            self.spree_responders = {}
+          end
+
+          def respond_override(options={})
+            unless options.blank?
+              action_name = options.keys.first
+              action_value = options.values.first
+
+              if action_name.blank? || action_value.blank?
+                raise ArgumentError, "invalid values supplied #{options.inspect}"
+              end
+
+              format_name = action_value.keys.first
+              format_value = action_value.values.first
+
+              if format_name.blank? || format_value.blank?
+                raise ArgumentError, "invalid values supplied #{options.inspect}"
+              end
+
+              if format_value.is_a?(Proc)
+                options = {action_name.to_sym => {format_name.to_sym => {:success => format_value}}}
+              end
+
+              self.spree_responders.deep_merge!(self.name.to_sym => options)
+            end
+          end
+        end
+      end
+    end
+  end
+end