Module: RenderingHelper

Defined in:
app/helpers/rendering_helper.rb

Constant Summary collapse 

%r{message://<[^>]+>}

Instance Method Summary collapse

Instance Method Details

Converts message:// links to href. This URL scheme is used on Mac OS X to link to a mail message in Mail.app.



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# File 'app/helpers/rendering_helper.rb', line 6

def auto_link_message(text)
  text.gsub(AUTO_LINK_MESSAGE_RE) do
    href = $&
    left = $`
    right = $'
    # detect already linked URLs and URLs in the middle of a tag
    if left =~ /<[^>]+$/ && right =~ /^[^>]*>/
      # do not change string; URL is already linked
      href
    else
      content_tag(:a, h(href), :href => href)
    end
  end
end

#render_text(text) ⇒ Object 



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# File 'app/helpers/rendering_helper.rb', line 21

def render_text(text)
  rendered = auto_link_message(text)
  rendered = textile(rendered)
  rendered = auto_link(rendered, link: :urls, html: { target: '_blank' })

  relaxed_config = Sanitize::Config::RELAXED
  config = relaxed_config

  # add onenote and message protocols, allow a target
  a_href_config = relaxed_config[:protocols]['a']['href'] + %w[onenote message obsidian]
  a_attributes = relaxed_config[:attributes]['a'] + ['target']
  config = Sanitize::Config.merge(config, protocols: { 'a' => { 'href' => a_href_config } }, :attributes => { 'a' => a_attributes })

  rendered = Sanitize.fragment(rendered, config)
  return rendered.html_safe
end

#textile(text) ⇒ Object 



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# File 'app/helpers/rendering_helper.rb', line 38

def textile(text)
  RedCloth.new(text).to_html
end