Class: RamenRails::ScriptTag

Inherits:
Object
  • Object
show all
Defined in:
lib/ramen-rails/script_tag.rb

Defined Under Namespace

Classes: EmptySettings

Instance Attribute Summary collapse

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(template, ramen_settings, options = {}) ⇒ ScriptTag

Returns a new instance of ScriptTag.



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# File 'lib/ramen-rails/script_tag.rb', line 14

def initialize(template, ramen_settings, options = {})
  self.template = template
  self.ramen_settings = ramen_settings
  self.options = options
end

Instance Attribute Details

#options ⇒ Object

Returns the value of attribute options.



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# File 'lib/ramen-rails/script_tag.rb', line 13

def options
  @options
end

#ramen_settings ⇒ Object

Returns the value of attribute ramen_settings.



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# File 'lib/ramen-rails/script_tag.rb', line 13

def ramen_settings
  @ramen_settings
end

#template ⇒ Object

Returns the value of attribute template.



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# File 'lib/ramen-rails/script_tag.rb', line 13

def template
  @template
end

Class Method Details

.generate(template, ramen_settings, options = {}) ⇒ Object 



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# File 'lib/ramen-rails/script_tag.rb', line 8

def self.generate(template, ramen_settings, options = {})
  st = new(template, ramen_settings, options)
  st.generate
end

Instance Method Details

#add_auth_hash! ⇒ Object 



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# File 'lib/ramen-rails/script_tag.rb', line 56

def add_auth_hash!
  return unless ramen_settings[:user].present? &&
    options[:organization_secret].present? &&
    ramen_settings[:auth_hash].blank?

  user = ramen_settings[:user]

  secret_string = "#{user[:email]}:#{user[:id]}:#{user[:name]}:#{ramen_settings[:timestamp]}:#{options[:organization_secret]}"

  ramen_settings[:auth_hash] = (Digest::SHA2.new << secret_string).to_s
end

#controller ⇒ Object 



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# File 'lib/ramen-rails/script_tag.rb', line 68

def controller
  template.try :controller
end

#generate ⇒ Object 



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# File 'lib/ramen-rails/script_tag.rb', line 24

def generate
  if ramen_settings.blank?
    raise EmptySettings.new("need to pass ramen_script_tag a non-empty ramen_settings argument")
  end

  ramen_settings[:timestamp] ||= Time.now.to_i
  
  add_auth_hash!

  ramen_script = <<-RAMEN_SCRIPT
  <script id="RamenSettingsScriptTag">
(function() {
  var opts = #{ActiveSupport::JSON.encode(ramen_settings)};
  window.ramenSettings = window.ramenSettings || {};
  for (var property in opts) {
    if (opts.hasOwnProperty(property)) {
      window.ramenSettings[property] = opts[property];
    }
  }
})()
  </script>
  <script src="#{ramen_js_asset_uri}" async></script>
  RAMEN_SCRIPT

  if controller
    controller.
      instance_variable_set(RamenRails::SCRIPT_TAG_HELPER_CALLED_INSTANCE_VARIABLE, true)
  end

  ramen_script.respond_to?(:html_safe) ? ramen_script.html_safe : ramen_script
end

#ramen_js_asset_uri ⇒ Object 



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# File 'lib/ramen-rails/script_tag.rb', line 20

def ramen_js_asset_uri
  RamenRails.config.ramen_js_asset_uri || "https://cdn.ramen.is/assets/ramen.js"
end