diff options
Diffstat (limited to 'actionpack/lib/abstract_controller/rendering.rb')
| -rw-r--r-- | actionpack/lib/abstract_controller/rendering.rb | 175 |
1 files changed, 48 insertions, 127 deletions
diff --git a/actionpack/lib/abstract_controller/rendering.rb b/actionpack/lib/abstract_controller/rendering.rb index 3f34add790..7be61d94c9 100644 --- a/actionpack/lib/abstract_controller/rendering.rb +++ b/actionpack/lib/abstract_controller/rendering.rb @@ -1,5 +1,7 @@ -require "abstract_controller/base" -require "action_view" +require 'active_support/concern' +require 'active_support/core_ext/class/attribute' +require 'action_view/view_paths' +require 'set' module AbstractController class DoubleRenderError < Error @@ -10,91 +12,18 @@ module AbstractController end end - # This is a class to fix I18n global state. Whenever you provide I18n.locale during a request, - # it will trigger the lookup_context and consequently expire the cache. - class I18nProxy < ::I18n::Config #:nodoc: - attr_reader :original_config, :lookup_context - - def initialize(original_config, lookup_context) - original_config = original_config.original_config if original_config.respond_to?(:original_config) - @original_config, @lookup_context = original_config, lookup_context - end - - def locale - @original_config.locale - end - - def locale=(value) - @lookup_context.locale = value - end - end - module Rendering extend ActiveSupport::Concern - include AbstractController::ViewPaths - - included do - class_attribute :protected_instance_variables - self.protected_instance_variables = [] - end - - # Overwrite process to setup I18n proxy. - def process(*) #:nodoc: - old_config, I18n.config = I18n.config, I18nProxy.new(I18n.config, lookup_context) - super - ensure - I18n.config = old_config - end - - module ClassMethods - def view_context_class - @view_context_class ||= begin - routes = respond_to?(:_routes) && _routes - helpers = respond_to?(:_helpers) && _helpers - - Class.new(ActionView::Base) do - if routes - include routes.url_helpers - include routes.mounted_helpers - end - - if helpers - include helpers - end - end - end - end - end - - attr_internal_writer :view_context_class - - def view_context_class - @_view_context_class ||= self.class.view_context_class - end - - # An instance of a view class. The default view class is ActionView::Base - # - # The view class must have the following methods: - # View.new[lookup_context, assigns, controller] - # Create a new ActionView instance for a controller - # View#render[options] - # Returns String with the rendered template - # - # Override this method in a module to change the default behavior. - def view_context - view_context_class.new(view_renderer, view_assigns, self) - end - - # Returns an object that is able to render templates. - def view_renderer - @_view_renderer ||= ActionView::Renderer.new(lookup_context) - end + include ActionView::ViewPaths # Normalize arguments, options and then delegates render_to_body and # sticks the result in self.response_body. + # :api: public def render(*args, &block) options = _normalize_render(*args, &block) self.response_body = render_to_body(options) + _process_format(rendered_format) if rendered_format + self.response_body end # Raw rendering of a template to a string. @@ -113,84 +42,76 @@ module AbstractController render_to_body(options) end - # Raw rendering of a template. - # :api: plugin + # Performs the actual template rendering. + # :api: public def render_to_body(options = {}) - _process_options(options) - _render_template(options) end - # Find and renders a template based on the options given. - # :api: private - def _render_template(options) #:nodoc: - lookup_context.rendered_format = nil if options[:formats] - view_renderer.render(view_context, options) + # Returns Content-Type of rendered content + # :api: public + def rendered_format + Mime::TEXT end - DEFAULT_PROTECTED_INSTANCE_VARIABLES = [ - :@_action_name, :@_response_body, :@_formats, :@_prefixes, :@_config, - :@_view_context_class, :@_view_renderer, :@_lookup_context - ] + DEFAULT_PROTECTED_INSTANCE_VARIABLES = Set.new %w( + @_action_name @_response_body @_formats @_prefixes @_config + @_view_context_class @_view_renderer @_lookup_context + @_routes @_db_runtime + ).map(&:to_sym) # This method should return a hash with assigns. # You can overwrite this configuration per controller. # :api: public def view_assigns - hash = {} - variables = instance_variables - variables -= protected_instance_variables - variables -= DEFAULT_PROTECTED_INSTANCE_VARIABLES - variables.each { |name| hash[name[1..-1]] = instance_variable_get(name) } - hash - end - - private + protected_vars = _protected_ivars + variables = instance_variables - # Normalize args and options. - # :api: private - def _normalize_render(*args, &block) - options = _normalize_args(*args, &block) - _normalize_options(options) - options + variables.reject! { |s| protected_vars.include? s } + variables.each_with_object({}) { |name, hash| + hash[name.slice(1, name.length)] = instance_variable_get(name) + } end # Normalize args by converting render "foo" to render :action => "foo" and # render "foo/bar" to render :file => "foo/bar". # :api: plugin def _normalize_args(action=nil, options={}) - case action - when NilClass - when Hash - options = action - when String, Symbol - action = action.to_s - key = action.include?(?/) ? :file : :action - options[key] = action + if action.is_a? Hash + action else - options[:partial] = action + options end - - options end # Normalize options. # :api: plugin def _normalize_options(options) - if options[:partial] == true - options[:partial] = action_name - end - - if (options.keys & [:partial, :file, :template]).empty? - options[:prefixes] ||= _prefixes - end - - options[:template] ||= (options[:action] || action_name).to_s options end # Process extra options. # :api: plugin def _process_options(options) + options + end + + # Process the rendered format. + # :api: private + def _process_format(format) + end + + # Normalize args and options. + # :api: private + def _normalize_render(*args, &block) + options = _normalize_args(*args, &block) + #TODO: remove defined? when we restore AP <=> AV dependency + options[:variant] = request.variant if defined?(request) && request.variant.present? + _normalize_options(options) + options + end + + def _protected_ivars # :nodoc: + DEFAULT_PROTECTED_INSTANCE_VARIABLES end end end |