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require "action_view/helpers/asset_paths"
require "action_view/helpers/asset_tag_helper"
module Sprockets
module Helpers
module RailsHelper
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 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
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
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