Class: AlMath::MathScriptsTag

Inherits:
Liquid::Tag
  • Object
show all
Defined in:
lib/al_math.rb

Instance Method Summary collapse

Instance Method Details

#render(context) ⇒ Object



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# File 'lib/al_math.rb', line 51

def render(context)
  site = context.registers[:site]
  page = context.registers[:page] || context['page'] || {}
  return '' unless site

  cfg = site.config
  libs = cfg['third_party_libraries'] || {}
  baseurl = cfg['baseurl'] || ''
  out = []

  if truthy?(cfg['enable_math'])
    out << %(<script defer type="text/javascript" id="MathJax-script" src="#{libs.dig('mathjax', 'url', 'js')}" integrity="#{libs.dig('mathjax', 'integrity', 'js')}" crossorigin="anonymous"></script>)
    if truthy?(page['pseudocode'])
      out << %(<script src="#{baseurl}/assets/al_math/js/pseudocode-setup.js"></script>)
      out << %(<script type="text/javascript" src="#{libs.dig('pseudocode', 'url', 'js')}" integrity="#{libs.dig('pseudocode', 'integrity', 'js')}" crossorigin="anonymous"></script>)
    else
      out << %(<script src="#{baseurl}/assets/al_math/js/mathjax-setup.js"></script>)
    end
  end

  if truthy?(page['tikzjax'])
    tikz_js = libs.dig('tikzjax', 'url', 'js')
    tikz_integrity = libs.dig('tikzjax', 'integrity', 'js')
    if !tikz_js.to_s.empty?
      if tikz_integrity.to_s.empty?
        out << %(<script defer src="#{tikz_js}" type="text/javascript" crossorigin="anonymous"></script>)
      else
        out << %(<script defer src="#{tikz_js}" type="text/javascript" integrity="#{tikz_integrity}" crossorigin="anonymous"></script>)
      end
    end
  end

  out.join("\n")
end