lib/locomotive/steam/liquid/tags/snippet.rb
module Locomotive
module Steam
module Liquid
module Tags
class Snippet < ::Liquid::Include
def parse(tokens)
# look for editable elements (only used by the Engine)
# In the next version of Locomotive (v5), we won't support the editable elements
# NOTE: it doesn't support dynamically choosen template
template_name = template_name_expr.respond_to?(:name) ? template_name_expr.name : template_name_expr
# make sure we keep track of the parsed snippets
parse_context[:parsed_snippets] ||= []
# already parsed? (it happens when doing recursivity with snippets)
if parse_context[:parsed_snippets].include?(template_name)
return
else
parse_context[:parsed_snippets] << template_name
end
ActiveSupport::Notifications.instrument('steam.parse.include', page: parse_context[:page], name: template_name)
if parse_context[:snippet_finder] && snippet = parse_context[:snippet_finder].find(template_name)
parse_context[:parser]._parse(snippet, parse_context.merge(snippet: template_name))
end
end
def render(context)
# parse_context (previously @options) doesn't include the page key if cache is on
parse_context[:page] = context.registers[:page]
begin
super
rescue ::Liquid::ArgumentError
# NOTE: Locomotive site developers should always use quotes (or doubles quotes) for the name of a snippet.
# Unfortunately, a lot of sites don't use them. So here is a little patch to not break those sites.
Locomotive::Common::Logger.warn("Use quotes if the name of your snippet (#{template_name_expr.name}) is not dynamic.")
@template_name_expr = template_name_expr.name
super
end
end
private
def read_template_from_file_system(context)
file_system = context.registers[:file_system] || Liquid::Template.file_system
# we use a convention to differentiate sections from snippets
template_path = "snippets--#{context.evaluate(@template_name_expr)}"
file_system.read_template_file(template_path)
end
end
::Liquid::Template.register_tag('include'.freeze, Snippet)
end
end
end
end