# The base module we include into ActionController::Base
module TinyMCE

  # When this module is included, extend it with the available class methods
  def self.included(base)
    base.extend(ClassMethods)
  end

  module ClassMethods

    # The controller declaration to enable tiny_mce on certain actions.
    # Takes options hash, raw_options string, and any normal params you
    # can send to a before_filter (only, except etc)
    def uses_tiny_mce(options = {})
      tiny_mce_options = options.delete(:options) || {}
      raw_tiny_mce_options = options.delete(:raw_options) || ''

      # If the tiny_mce plugins includes the spellchecker, then form a spellchecking path,
      # add it to the tiny_mce_options, and include the SpellChecking module
      if !tiny_mce_options[:plugins].blank? && tiny_mce_options[:plugins].include?('spellchecker')
        tiny_mce_options.reverse_merge!(:spellchecker_rpc_url => "/" + self.controller_name + "/spellchecker")
        self.class_eval do
          include TinyMCE::SpellChecker
        end
      end

      # Set instance vars in the current class
      proc = Proc.new do |c|
        c.instance_variable_set(:@tiny_mce_options, tiny_mce_options)
        c.instance_variable_set(:@raw_tiny_mce_options, raw_tiny_mce_options)
        c.instance_variable_set(:@uses_tiny_mce, true)
      end

      # Run the above proc before each page load this method is declared in
      before_filter(proc, options)
    end

  end

end