require_dependency 'yaml'

class ApplicationController < ActionController::Base
  before_filter :load_presentation

  protected
    def load_presentation
      @presentation = YAML::load(File.open("#{RAILS_ROOT}/presentation.yml"))
      @theme = @presentation["theme"]
      @slides = @presentation["slides"]
      @stylesheets = @slides.collect { |s| "/stylesheets/slides/#{s}" }
      @stylesheets.reject! { |s| not File.exists? "#{RAILS_ROOT}/public/#{s}.css" }
    end
end