class TaskJuggler::NavigatorElement

# 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