module Formtastic
  module Actions

  # Outputs a `<button type="submit">` or `<button type="reset">` wrapped in the standard `<li>`
  # wrapper. This is an alternative choice for `:submit` and `:reset` actions, which render with
  # `<input type="submit">` and `<input type="reset">` by default.
  #
  # @example Full form context and output
  #
  #   <%= semantic_form_for(@post) do |f| %>
  #     <%= f.actions do %>
  #       <%= f.action :reset, :as => :button %>
  #       <%= f.action :submit, :as => :button %>
  #     <% end %>
  #   <% end %>
  #
  #   <form...>
  #     <fieldset class="actions">
  #       <ol>
  #         <li class="action button_action" id="post_reset_action">
  #           <button type="reset" value="Reset">
  #         </li>
  #         <li class="action button_action" id="post_submit_action">
  #           <button type="submit" value="Create Post">
  #         </li>
  #       </ol>
  #     </fieldset>
  #   </form>
  #
  # @example Specifying a label with a String
  #   <%= f.action :submit, :as => :button, :label => "Go" %>
  #
  # @example Pass HTML attributes down to the `<button>`
  #   <%= f.action :submit, :as => :button, :button_html => { :class => 'pretty', :accesskey => 'g', :disable_with => "Wait..." } %>
  #
  # @example Access key can also be set as a top-level option
  #   <%= f.action :submit, :as => :button, :accesskey => 'g' %>
  #
  # @example Pass HTML attributes down to the `<li>` wrapper (classes are appended to the existing classes)
  #   <%= f.action :submit, :as => :button, :wrapper_html => { :class => 'special', :id => 'whatever' } %>
  #   <%= f.action :submit, :as => :button, :wrapper_html => { :class => ['extra', 'special'], :id => 'whatever' } %>
  #
  # @todo document i18n keys
  # @todo document i18n translation with :label (?)
  class ButtonAction
      include Base
      include Buttonish

      # @see Formtastic::Helpers::ActionHelper#action
      # @option *args :label [String, Symbol]
      #   Override the label text with a String or a symbol for an i18n translation key
      #
      # @option *args :button_html [Hash]
      #   Override or add to the HTML attributes to be passed down to the `<input>` tag
      #
      # @option *args :wrapper_html [Hash]
      #   Override or add to the HTML attributes to be passed down to the wrapping `<li>` tag

      # TODO reset_action class?
      def to_html
        wrapper do
          template.button_tag(text, button_html)
        end
      end
    end
  end
end