34 lines
1.0 KiB
Ruby
34 lines
1.0 KiB
Ruby
require "rouge/plugins/redcarpet"
|
|
|
|
class MarkdownRenderer < Redcarpet::Render::HTML
|
|
include Rouge::Plugins::Redcarpet
|
|
|
|
def self.build
|
|
renderer = MarkdownRenderer.new(ActionText::Markdown::DEFAULT_RENDERER_OPTIONS)
|
|
Redcarpet::Markdown.new(renderer, ActionText::Markdown::DEFAULT_MARKDOWN_EXTENSIONS)
|
|
end
|
|
|
|
def initialize(*args)
|
|
super
|
|
@id_counts = Hash.new(0)
|
|
end
|
|
|
|
def header(text, header_level)
|
|
unique_id(text).then do |id|
|
|
"<h#{header_level} id='#{id}'>#{text} <a href='##{id}' class='heading__link' aria-hidden='true'>#</a></h#{header_level}>"
|
|
end
|
|
end
|
|
|
|
def image(url, title, alt_text)
|
|
%(<a title="#{title}" data-action="lightbox#open:prevent" data-lightbox-target="image" data-lightbox-url-value="#{url}?disposition=attachment" href="#{url}"><img src="#{url}" alt="#{alt_text}"></a>)
|
|
end
|
|
|
|
private
|
|
def unique_id(text)
|
|
text.parameterize.then do |base_id|
|
|
@id_counts[base_id] += 1
|
|
@id_counts[base_id] > 1 ? "#{base_id}-#{@id_counts[base_id]}" : base_id
|
|
end
|
|
end
|
|
end
|