Sha256: 3726a7083ae9c2251746927860e1043465c1d2539aa73516b482c3ed28f476fd
Contents?: true
Size: 973 Bytes
Versions: 11
Compression:
Stored size: 973 Bytes
Contents
module BootstrapEmail
module Converter
class HeadStyle < Base
def build
doc.at_css('head').add_child(bootstrap_email_head)
end
private
def bootstrap_email_head
html_string = <<-INLINE
<style type="text/css">
#{purged_css_from_head}
</style>
INLINE
html_string
end
def purged_css_from_head
default, custom = BootstrapEmail::SassCache.compile('bootstrap-head').split('/*! allow_purge_after */')
# get each CSS declaration
custom.scan(/\w*\.[\w\-]*[\s\S\n]+?(?=})}{1}/).each do |group|
# get the first class for each comma separated CSS declaration
exist = group.scan(/(\.[\w\-]*).*?((,+?)|{+?)/).map(&:first).uniq.any? do |selector|
!doc.at_css(selector).nil?
end
custom.sub!(group, '') unless exist
end
(default + custom).gsub(/\n\s*\n+/, "\n")
end
end
end
end
Version data entries
11 entries across 11 versions & 1 rubygems