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# frozen_string_literal: true
module Slim
module Splat
# @api private
class Filter < ::Slim::Filter
define_options :merge_attrs, :attr_quote, :sort_attrs, :default_tag, :format, :disable_capture,
hyphen_attrs: %w(data aria), use_html_safe: ''.respond_to?(:html_safe?),
hyphen_underscore_attrs: false
def call(exp)
@splat_options = nil
exp = compile(exp)
if @splat_options
opts = options.to_hash.reject { |k, v| !Filter.options.valid_key?(k) }.inspect
[:multi, [:code, "#{@splat_options} = #{opts}"], exp]
else
exp
end
end
# Handle tag expression `[:html, :tag, name, attrs, content]`
#
# @param [String] name Tag name
# @param [Array] attrs Temple expression
# @param [Array] content Temple expression
# @return [Array] Compiled temple expression
def on_html_tag(name, attrs, content = nil)
return super if name != '*'
builder, block = make_builder(attrs[2..-1])
if content
[:multi,
block,
[:slim, :output, false,
"#{builder}.build_tag #{empty_exp?(content) ? '{}' : 'do'}",
compile(content)]]
else
[:multi,
block,
[:dynamic, "#{builder}.build_tag"]]
end
end
# Handle attributes expression `[:html, :attrs, *attrs]`
#
# @param [Array] attrs Array of temple expressions
# @return [Array] Compiled temple expression
def on_html_attrs(*attrs)
if attrs.any? { |attr| splat?(attr) }
builder, block = make_builder(attrs)
[:multi,
block,
[:dynamic, "#{builder}.build_attrs"]]
else
super
end
end
protected
def splat?(attr)
# Splat attribute given
attr[0] == :slim && attr[1] == :splat ||
# Hyphenated attribute also needs splat handling
(attr[0] == :html && attr[1] == :attr && options[:hyphen_attrs].include?(attr[2]) &&
attr[3][0] == :slim && attr[3][1] == :attrvalue)
end
def make_builder(attrs)
@splat_options ||= unique_name
builder = unique_name
result = [:multi, [:code, "#{builder} = ::Slim::Splat::Builder.new(#{@splat_options})"]]
attrs.each do |attr|
result <<
if attr[0] == :html && attr[1] == :attr
if attr[3][0] == :slim && attr[3][1] == :attrvalue
[:code, "#{builder}.code_attr(#{attr[2].inspect}, #{attr[3][2]}, (#{attr[3][3]}))"]
else
tmp = unique_name
[:multi,
[:capture, tmp, compile(attr[3])],
[:code, "#{builder}.attr(#{attr[2].inspect}, #{tmp})"]]
end
elsif attr[0] == :slim && attr[1] == :splat
[:code, "#{builder}.splat_attrs((#{attr[2]}))"]
else
attr
end
end
[builder, result]
end
end
end
end
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