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module ActionController
module RenderOptions
extend ActiveSupport::Concern
included do
extlib_inheritable_accessor :_renderers
self._renderers = []
end
module ClassMethods
def _write_render_options
renderers = _renderers.map do |r|
<<-RUBY_EVAL
if options.key?(:#{r})
_process_options(options)
return render_#{r}(options[:#{r}], options)
end
RUBY_EVAL
end
class_eval <<-RUBY_EVAL, __FILE__, __LINE__ + 1
def _handle_render_options(options)
#{renderers.join}
end
RUBY_EVAL
end
def _add_render_option(name)
_renderers << name
_write_render_options
end
end
def render_to_body(options)
_handle_render_options(options) || super
end
end
module RenderOption #:nodoc:
def self.extended(base)
base.extend ActiveSupport::Concern
base.send :include, ::ActionController::RenderOptions
def base.register_renderer(name)
included { _add_render_option(name) }
end
end
end
module RenderOptions
module Json
extend RenderOption
register_renderer :json
def render_json(json, options)
json = ActiveSupport::JSON.encode(json) unless json.respond_to?(:to_str)
json = "#{options[:callback]}(#{json})" unless options[:callback].blank?
self.content_type ||= Mime::JSON
self.response_body = json
end
end
module Js
extend RenderOption
register_renderer :js
def render_js(js, options)
self.content_type ||= Mime::JS
self.response_body = js.respond_to?(:to_js) ? js.to_js : js
end
end
module Xml
extend RenderOption
register_renderer :xml
def render_xml(xml, options)
self.content_type ||= Mime::XML
self.response_body = xml.respond_to?(:to_xml) ? xml.to_xml : xml
end
end
module RJS
extend RenderOption
register_renderer :update
def render_update(proc, options)
generator = ActionView::Helpers::PrototypeHelper::JavaScriptGenerator.new(view_context, &proc)
self.content_type = Mime::JS
self.response_body = generator.to_s
end
end
module All
extend ActiveSupport::Concern
include ActionController::RenderOptions::Json
include ActionController::RenderOptions::Js
include ActionController::RenderOptions::Xml
include ActionController::RenderOptions::RJS
end
end
end
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