compass/lib/sass_extensions.rb

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require 'sass'
require 'sass/plugin'
module Sass::Script::Functions
COMMA_SEPARATOR = /\s*,\s*/
def nest(*arguments)
nested = arguments.map{|a| a.value}.inject do |memo,arg|
ancestors = memo.split(COMMA_SEPARATOR)
descendants = arg.split(COMMA_SEPARATOR)
ancestors.map{|a| descendants.map{|d| "#{a} #{d}"}.join(", ")}.join(", ")
end
Sass::Script::String.new(nested)
end
def enumerate(prefix, from, through)
selectors = (from.value..through.value).map{|i| "#{prefix.value}-#{i}"}.join(", ")
Sass::Script::String.new(selectors)
end
def image_url(path)
http_images_path = if Compass.configuration.http_images_path == :relative
if (target_css_file = options[:css_filename])
images_path = File.join(Compass.configuration.project_path, Compass.configuration.images_dir)
Pathname.new(images_path).relative_path_from(Pathname.new(File.dirname(target_css_file))).to_s
else
nil
end
else
Compass.configuration.http_images_path
end
if http_images_path
http_images_path = "#{http_images_path}/" unless http_images_path[-1..-1] == "/"
path = "#{http_images_path}#{path}"
end
Sass::Script::String.new("url(#{path})")
end
end
# XXX: We can remove this check and monkeypatch once Sass 2.2 is released.
module Sass::Plugin
class << self
unless method_defined?(:exact_stylesheet_needs_update?)
def stylesheet_needs_update?(name, template_path, css_path)
css_file = css_filename(name, css_path)
template_file = template_filename(name, template_path)
exact_stylesheet_needs_update?(css_file, template_file)
end
def exact_stylesheet_needs_update?(css_file, template_file)
if !File.exists?(css_file)
return true
else
css_mtime = File.mtime(css_file)
File.mtime(template_file) > css_mtime ||
dependencies(template_file).any?(&dependency_updated?(css_mtime))
end
end
end
end
end