Module: RenderLater::ViewHelper

Defined in:
app/helpers/render_later/view_helper.rb

Constant Summary collapse

INSERT_FUNCTION = 
"  function rl_insert(name, data) {\n    if (node = document.getElementById(name)) {\n      var div = document.createElement(node.parentNode.tagName || 'div');\n      div.innerHTML = data;\n      var elements = div.childNodes;\n      for (var i = elements.length; i > 0; i--) {\n        node.parentNode.insertBefore(elements[0], node);\n      }\n      node.parentNode.removeChild(node);\n    }\n  };\n".freeze

Instance Method Summary collapse

Instance Method Details

#render_later(key, tag: :span, class: "rl-placeholder", &block) ⇒ Object 



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# File 'app/helpers/render_later/view_helper.rb', line 17

def render_later key, tag: :span, class: "rl-placeholder", &block
  store_object(key, &block)
  content_tag(tag, nil, id: "rl-#{key}", class: binding.local_variable_get(:class), style: 'display: none')
end

#render_now ⇒ Object 



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# File 'app/helpers/render_later/view_helper.rb', line 22

def render_now
  return nil if deferred_objects.empty?
  concat content_tag('script', raw(INSERT_FUNCTION))
  deferred_objects.each do |key, block|
    concat content_tag('script', raw("rl_insert('rl-#{key}', '#{j capture(&block)}');\n"))
  end
  nil
rescue Errno::EPIPE
end