engine/app/helpers/admin/base_helper.rb

module Admin::BaseHelper

  def title(title = nil)
    if title.nil?
      @content_for_title
    else
      @content_for_title = title
      ''
    end
  end

  def admin_menu_item(name, url)
    index = controller.instance_variable_get(:@menu_index) || 1
    controller.instance_variable_set(:@menu_index, index + 1)
    label = content_tag(:em, escape_once(' ')) + content_tag(:span, t("admin.shared.menu.#{name}"))
    content_tag(:li, content_tag(:span) + link_to(label, url), :class => "item #{'first' if index == 1} item-#{index} #{name.dasherize}")
  end

  def admin_button_tag(text, url, options = {})
    text = text.is_a?(Symbol) ? t(".#{text}") : text
    link_to(url, options) do
      content_tag(:em, escape_once(' ')) + text
    end
  end

  def admin_submenu_item(name, url, options = {}, &block)
    default_options = { :i18n => true, :css => name.dasherize.downcase }
    default_options.merge!(options)

    css = "#{'on' if name == sections(:sub)} #{options[:css]}"

    label_link = default_options[:i18n] ? t("admin.shared.menu.#{name}") : name
    if block_given?
      popup = content_tag(:div, capture(&block), :class => 'popup', :style => 'display: none')
      link = link_to(content_tag(:span, preserve(label_link) + content_tag(:em)) + content_tag(:em), url, :class => css)
      content_tag(:li, link + popup, :class => 'hoverable')
    else
      content_tag(:li, link_to(content_tag(:span, label_link), url, :class => css))
    end
  end

  def collection_to_js(collection, options = {})
    js = collection.collect { |object| object.to_json }

    options_to_js = options.to_json.gsub(/^\{/, '').gsub(/\}$/, '')

    "new Object({ \"collection\": [#{js.join(', ')}], #{options_to_js} })"
  end

  def growl_message
    if not flash.empty?
      %{
        $(document).ready(function() {
          $.growl("#{flash.keys.first}", "#{flash.values.first}");
        });
      }.to_s
    end
  end

  def nocoffee_tag
    link_to 'noCoffee', 'http://www.nocoffee.fr', :id => 'nocoffee'
  end

end