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|
# frozen_string_literal: true
require 'hamlit/object_ref'
module Hamlit::AttributeBuilder
BOOLEAN_ATTRIBUTES = %w[disabled readonly multiple checked autobuffer
autoplay controls loop selected hidden scoped async
defer reversed ismap seamless muted required
autofocus novalidate formnovalidate open pubdate
itemscope allowfullscreen default inert sortable
truespeed typemustmatch download].freeze
# Java extension is not implemented for JRuby yet.
# TruffleRuby does not implement `rb_ary_sort_bang`, etc.
if /java/ === RUBY_PLATFORM || RUBY_ENGINE == 'truffleruby'
class << self
def build(escape_attrs, quote, format, boolean_attributes, object_ref, *hashes)
hashes << Hamlit::ObjectRef.parse(object_ref) if object_ref
buf = []
hash = merge_all_attrs(hashes)
keys = hash.keys.sort!
keys.each do |key|
case key
when 'id'.freeze
buf << " id=#{quote}#{build_id(escape_attrs, *hash[key])}#{quote}"
when 'class'.freeze
buf << " class=#{quote}#{build_class(escape_attrs, *hash[key])}#{quote}"
when 'data'.freeze
buf << build_data(escape_attrs, quote, *hash[key])
when *boolean_attributes, /\Adata-/
build_boolean!(escape_attrs, quote, format, buf, key, hash[key])
else
buf << " #{key}=#{quote}#{escape_html(escape_attrs, hash[key].to_s)}#{quote}"
end
end
buf.join
end
def build_id(escape_attrs, *values)
escape_html(escape_attrs, values.flatten.select { |v| v }.join('_'))
end
def build_class(escape_attrs, *values)
if values.size == 1
value = values.first
case
when value.is_a?(String)
# noop
when value.is_a?(Array)
value = value.flatten.select { |v| v }.map(&:to_s).uniq.join(' ')
when value
value = value.to_s
else
return ''
end
return escape_html(escape_attrs, value)
end
classes = []
values.each do |value|
case
when value.is_a?(String)
classes += value.split(' ')
when value.is_a?(Array)
classes += value.select { |v| v }
when value
classes << value.to_s
end
end
escape_html(escape_attrs, classes.map(&:to_s).uniq.join(' '))
end
def build_data(escape_attrs, quote, *hashes)
build_data_attribute(:data, escape_attrs, quote, *hashes)
end
def build_aria(escape_attrs, quote, *hashes)
build_data_attribute(:aria, escape_attrs, quote, *hashes)
end
private
def build_data_attribute(key, escape_attrs, quote, *hashes)
attrs = []
if hashes.size > 1 && hashes.all? { |h| h.is_a?(Hash) }
data_value = merge_all_attrs(hashes)
else
data_value = hashes.last
end
hash = flatten_attributes(key => data_value)
hash.sort_by(&:first).each do |key, value|
case value
when true
attrs << " #{key}"
when nil, false
# noop
else
attrs << " #{key}=#{quote}#{escape_html(escape_attrs, value.to_s)}#{quote}"
end
end
attrs.join
end
def flatten_attributes(attributes)
flattened = {}
attributes.each do |key, value|
case value
when attributes
when Hash
flatten_attributes(value).each do |k, v|
if k.nil?
flattened[key] = v
else
flattened["#{key}-#{k.to_s.gsub(/_/, '-')}"] = v
end
end
else
flattened[key] = value if value
end
end
flattened
end
def merge_all_attrs(hashes)
merged = {}
hashes.each do |hash|
hash.each do |key, value|
key = key.to_s
case key
when 'id'.freeze, 'class'.freeze, 'data'.freeze
merged[key] ||= []
merged[key] << value
else
merged[key] = value
end
end
end
merged
end
def build_boolean!(escape_attrs, quote, format, buf, key, value)
case value
when true
case format
when :xhtml
buf << " #{key}=#{quote}#{key}#{quote}"
else
buf << " #{key}"
end
when false, nil
# omitted
else
buf << " #{key}=#{quote}#{escape_html(escape_attrs, value)}#{quote}"
end
end
def escape_html(escape_attrs, str)
if escape_attrs
Hamlit::Utils.escape_html(str)
else
str
end
end
end
else
# Hamlit::AttributeBuilder.build
# Hamlit::AttributeBuilder.build_id
# Hamlit::AttributeBuilder.build_class
# Hamlit::AttributeBuilder.build_data
# Hamlit::AttributeBuilder.build_aria
require 'hamlit/hamlit'
end
end
|
