require "action_view/helpers/asset_paths" require "action_view/helpers/asset_tag_helper" module Sprockets module Helpers module RailsHelper extend ActiveSupport::Concern include ActionView::Helpers::AssetTagHelper def asset_paths @asset_paths ||= begin config = self.config if respond_to?(:config) controller = self.controller if respond_to?(:controller) RailsHelper::AssetPaths.new(config, controller) end end def javascript_include_tag(source, options = {}) debug = options.key?(:debug) ? options.delete(:debug) : debug_assets? body = options.key?(:body) ? options.delete(:body) : false if debug && asset = asset_paths.asset_for(source, 'js') asset.to_a.map { |dep| javascript_include_tag(dep, :debug => false, :body => true) }.join("\n").html_safe else options = { 'type' => "text/javascript", 'src' => asset_path(source, 'js', body) }.merge(options.stringify_keys) content_tag 'script', "", options end end def stylesheet_link_tag(source, options = {}) debug = options.key?(:debug) ? options.delete(:debug) : debug_assets? body = options.key?(:body) ? options.delete(:body) : false if debug && asset = asset_paths.asset_for(source, 'css') asset.to_a.map { |dep| stylesheet_link_tag(dep, :debug => false, :body => true) }.join("\n").html_safe else options = { 'rel' => "stylesheet", 'type' => "text/css", 'media' => "screen", 'href' => asset_path(source, 'css', body) }.merge(options.stringify_keys) tag 'link', options end end private def debug_assets? params[:debug_assets] == '1' || params[:debug_assets] == 'true' end def asset_path(source, default_ext = nil, body = false) source = source.logical_path if source.respond_to?(:logical_path) path = asset_paths.compute_public_path(source, 'assets', default_ext, true) body ? "#{path}?body=1" : path end class AssetPaths < ActionView::Helpers::AssetPaths #:nodoc: def compute_public_path(source, dir, ext=nil, include_host=true) super(source, 'assets', ext, include_host) end def asset_for(source, ext) source = source.to_s return nil if is_uri?(source) source = rewrite_extension(source, nil, ext) assets[source] end def rewrite_asset_path(source, dir) if source[0] == ?/ source else assets.path(source, performing_caching?, dir) end end def rewrite_extension(source, dir, ext) if ext && File.extname(source).empty? "#{source}.#{ext}" else source end end def assets Rails.application.assets end # When included in Sprockets::Context, we need to ask the top-level config as the controller is not available def performing_caching? @config ? @config.perform_caching : Rails.application.config.action_controller.perform_caching end end end end end