Contents

module Vega
  module Helper
    def vega_chart(chart, nonce: true)
      unless chart.is_a?(Vega::BaseChart) || chart.is_a?(Hash)
        raise TypeError, "expected Vega chart or spec"
      end

      if nonce == true
        # Secure Headers also defines content_security_policy_nonce but it takes an argument
        # Rails 5.2 overrides this method, but earlier versions do not
        if respond_to?(:content_security_policy_nonce) && (content_security_policy_nonce rescue nil)
          # Rails 5.2
          nonce = content_security_policy_nonce
        elsif respond_to?(:content_security_policy_script_nonce)
          # Secure Headers
          nonce = content_security_policy_script_nonce
        else
          nonce = nil
        end
      end

      if chart.is_a?(Hash)
        Vega.render(chart, nonce: nonce)
      else
        chart.to_html(nonce: nonce)
      end
    end
  end
end

Version data entries

6 entries across 6 versions & 1 rubygems

Version	Path
vega-0.4.0	lib/vega/helper.rb
vega-0.3.2	lib/vega/helper.rb
vega-0.3.1	lib/vega/helper.rb
vega-0.3.0	lib/vega/helper.rb
vega-0.2.7	lib/vega/helper.rb
vega-0.2.6	lib/vega/helper.rb