126 lines
3.3 KiB
Ruby
126 lines
3.3 KiB
Ruby
# frozen_string_literal: true
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module ActionController
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module Rendering
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extend ActiveSupport::Concern
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RENDER_FORMATS_IN_PRIORITY = [:body, :plain, :html]
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module ClassMethods
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# Documentation at ActionController::Renderer#render
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delegate :render, to: :renderer
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# Returns a renderer instance (inherited from ActionController::Renderer)
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# for the controller.
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attr_reader :renderer
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def setup_renderer! # :nodoc:
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@renderer = Renderer.for(self)
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end
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def inherited(klass)
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klass.setup_renderer!
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super
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end
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end
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# Before processing, set the request formats in current controller formats.
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def process_action(*) #:nodoc:
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self.formats = request.formats.map(&:ref).compact
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super
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end
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# Check for double render errors and set the content_type after rendering.
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def render(*args) #:nodoc:
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raise ::AbstractController::DoubleRenderError if response_body
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super
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end
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# Overwrite render_to_string because body can now be set to a Rack body.
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def render_to_string(*)
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result = super
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if result.respond_to?(:each)
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string = +""
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result.each { |r| string << r }
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string
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else
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result
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end
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end
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def render_to_body(options = {})
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super || _render_in_priorities(options) || " "
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end
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private
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def _process_variant(options)
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if defined?(request) && !request.nil? && request.variant.present?
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options[:variant] = request.variant
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end
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end
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def _render_in_priorities(options)
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RENDER_FORMATS_IN_PRIORITY.each do |format|
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return options[format] if options.key?(format)
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end
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nil
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end
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def _set_html_content_type
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self.content_type = Mime[:html].to_s
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end
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def _set_rendered_content_type(format)
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if format && !response.media_type
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self.content_type = format.to_s
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end
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end
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def _set_vary_header
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self.headers["Vary"] = "Accept" if request.should_apply_vary_header?
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end
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# Normalize arguments by catching blocks and setting them on :update.
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def _normalize_args(action = nil, options = {}, &blk)
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options = super
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options[:update] = blk if block_given?
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options
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end
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# Normalize both text and status options.
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def _normalize_options(options)
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_normalize_text(options)
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if options[:html]
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options[:html] = ERB::Util.html_escape(options[:html])
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end
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if options[:status]
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options[:status] = Rack::Utils.status_code(options[:status])
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end
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super
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end
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def _normalize_text(options)
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RENDER_FORMATS_IN_PRIORITY.each do |format|
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if options.key?(format) && options[format].respond_to?(:to_text)
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options[format] = options[format].to_text
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end
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end
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end
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# Process controller specific options, as status, content-type and location.
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def _process_options(options)
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status, content_type, location = options.values_at(:status, :content_type, :location)
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self.status = status if status
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self.content_type = content_type if content_type
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headers["Location"] = url_for(location) if location
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super
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end
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end
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end
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