# File lib/taskjuggler/reports/Navigator.rb, line 23
    def initialize(parent, label = nil, url = nil)
      @parent = parent
      @label = label
      @url = url
      @elements = []
      # True if the current report is included in this NavigatorElement or any
      # of its sub elements.
      @current = false
    end

# File lib/taskjuggler/reports/Navigator.rb, line 33
    def to_html(html = nil)
      first = true

      topLevel = html.nil?

      # If we don't have a container yet, to put all the menus into, create one.
      html ||= XMLElement.new('div', 'class' => 'navbar_container')

      html << XMLElement.new('hr', 'class' => 'navbar_topruler') if topLevel

      # Create a container for this (sub-)menu.
      html << (div = XMLElement.new('div', 'class' => 'navbar'))

      @elements.each do |element|
        # Separate the menu entries by vertical bars. Prepend them for all but
        # the first entry.
        if first
          first = false
        else
          div << XMLText.new('|')
        end

        if element.current
          # The navbar entry is referencing this page. Highlight is as the
          # currently selected page.
          div << (span = XMLElement.new('span',
                                        'class' => 'navbar_current'))
          span << XMLText.new(element.label)
        else
          # The navbar entry is refencing another page. Show the link to it.
          div << (span = XMLElement.new('span', 'class' => 'navbar_other'))
          span << (a = XMLElement.new('a', 'href' => element.url))
          a << XMLText.new(element.label)
        end
      end

      # Now see if the current menu entry is actually just holding another sub
      # menu and generate that menue in another line after an HR.
      @elements.each do |element|
        if element.current && !element.elements.empty?
          html << XMLElement.new('hr', 'class' => 'navbar_midruler') unless first
          element.to_html(html)
          break
        end
      end

      html << XMLElement.new('hr', 'class' => 'navbar_bottomruler') if topLevel

      html
    end

# File lib/taskjuggler/reports/Navigator.rb, line 85
    def to_s(indent = 0)
      @elements.each do |element|
        puts "#{' ' * indent}#{element.current ? '<' : ''}" +
             "#{element.label}#{element.current ? '>' : ''}" +
             " -> #{element.url}"
        element.to_s(indent + 1)
      end
    end