Contents

module SimpleNavigation
  
  # Represents an item in your navigation. Gets generated by the item method in the config-file.
  class Item
    attr_reader :key, :name, :url, :sub_navigation, :method
    attr_writer :html_options
    
    # see ItemContainer#item
    def initialize(key, name, url, options, sub_nav_block)
      @key = key
      @method = options.delete(:method)
      @name = name
      @url = url
      @html_options = options
      if sub_nav_block
        @sub_navigation = ItemContainer.new
        sub_nav_block.call @sub_navigation
      end
    end
    
    # Returns true if this navigation item should be rendered as 'selected' for the specified current_navigation.
    def selected?(current_navigation)
      key == current_navigation
    end
        
    # Returns the html-options hash for the item, i.e. the options specified for this item in the config-file.
    # It also adds the 'selected' class to the list of classes if necessary. 
    def html_options(current_navigation)
      default_class = self.autogenerate_item_ids? ? key.to_s : nil
      @html_options
      @html_options[:class] = [default_class, @html_options[:class], self.selected_class(current_navigation)].flatten.compact.uniq.join(' ')
      @html_options.delete(:class) if @html_options[:class].blank? 
      @html_options
    end
        
    def selected_class(current_navigation) #:nodoc:
      selected?(current_navigation) ? SimpleNavigation.config.selected_class : nil
    end
    
    
    protected
    
    def autogenerate_item_ids?
      SimpleNavigation.config.autogenerate_item_ids
    end
        
  end
end

Version data entries

1 entries across 1 versions & 1 rubygems

Version	Path
krasivotokak-simple-navigation-1.4.1	lib/simple_navigation/item.rb