demarches-normaliennes/app/lib/redcarpet/trusted_renderer.rb
Paul Chavard 2fe40343a7
Merge pull request #10646 from colinux/faq-allow-custom-image-attributes
Accessibilité: permet au markdown FAQ d'intégrer n'importe quel attribut html dans les `<img>`
2024-07-29 08:27:04 +00:00

74 lines
2.2 KiB
Ruby

module Redcarpet
class TrustedRenderer < Redcarpet::Render::HTML
include ActionView::Helpers::TagHelper
include Sprockets::Rails::Helper
include ApplicationHelper
attr_reader :view_context
def initialize(view_context, extensions = {})
@view_context = view_context
super extensions
end
def link(href, title, content)
html_options = {
href: href
}
unless href.starts_with?('/')
html_options.merge!(title: new_tab_suffix(content), **external_link_attributes)
end
content_tag(:a, content, html_options, false)
end
def autolink(link, link_type)
case link_type
when :url
link(link, nil, link)
when :email
# NOTE: As of Redcarpet 3.6.0, autolinking email containing underscore is broken https://github.com/vmg/redcarpet/issues/402
content_tag(:a, link, { href: "mailto:#{link}" })
end
end
def image(link, title, alt_text)
# Extrait les attributs personnalisés s'ils existent sous la forme { aria-hidden=true } dans les []
custom_attributes = {}
if alt_text =~ /\s*\{(.+)\}$/
attr_string = Regexp.last_match(1)
alt_text = alt_text.sub(/\s*\{.+\}$/, '').strip
attr_string.split(' ').each do |attr|
key, value = attr.split('=')
custom_attributes[key.strip] = value.strip.delete('"')
end
end
# Combine les attributs standard et personnalisés
image_options = {
alt: alt_text,
title:,
loading: :lazy
}.merge(custom_attributes)
view_context.image_tag(link, image_options)
end
# rubocop:disable Rails/OutputSafety
def block_quote(raw_html)
if raw_html =~ /^<p>\[!(INFO|WARNING)\]\n/
state = Regexp.last_match(1).downcase.to_sym
content = raw_html.sub(/^<p>\[!(?:INFO|WARNING)\]\n/, '<p>')
component = Dsfr::AlertComponent.new(state:, heading_level: "h2", extra_class_names: "fr-my-3w")
component.render_in(view_context) do |c|
c.with_body { content.html_safe }
end
else
view_context.content_tag(:blockquote, raw_html.html_safe)
end
end
# rubocop:enable Rails/OutputSafety
end
end