Sha256: e4db728419c6779d6c670f5cc7f8e9914c42b5b633b198ce9e85d1d9c87bbd71
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Size: 1.68 KB
Versions: 36
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Stored size: 1.68 KB
Contents
# frozen_string_literal: true
class Proscenium::CssModule
class NotFound < StandardError
def initialize(pathname)
@pathname = pathname
super
end
def message
"Stylesheet is required, but does not exist: #{@pathname}"
end
end
def initialize(path)
@path = path
@css_module_path = "#{path}.module.css"
end
# Parses the given `content` for CSS modules names ('class' attributes beginning with '@'), and
# returns the content with said CSS Modules replaced with the compiled class names.
#
# Example:
# <div class="@my_css_module_name"></div>
def compile_class_names(content)
doc = Nokogiri::HTML::DocumentFragment.parse(content)
return content if (modules = doc.css('[class*="@"]')).empty?
modules.each do |ele|
classes = ele.classes.map { |cls| cls.starts_with?('@') ? class_names!(cls[1..]) : cls }
ele['class'] = classes.join(' ')
end
doc.to_html.html_safe
end
# @returns [Array] of class names generated from the given CSS module `names`.
def class_names(*names)
side_load_css_module
names.flatten.compact.map { |name| "#{name.to_s.camelize(:lower)}#{hash}" }
end
# Like #class_names, but requires that the stylesheet exists.
#
# @raises Proscenium::CssModule::NotFound if stylesheet does not exists.
def class_names!(...)
raise NotFound, @css_module_path unless Rails.root.join(@css_module_path).exist?
class_names(...)
end
private
def hash
@hash ||= Digest::SHA1.hexdigest("/#{@css_module_path}")[..7]
end
def side_load_css_module
return unless Rails.application.config.proscenium.side_load
Proscenium::SideLoad.append "#{@path}.module", :css
end
end
Version data entries
36 entries across 36 versions & 1 rubygems