MacRuby sample showing that ABPeoplePickerView is buggy and that it even affects AB.

buggy_ABPeoplePickerView_example.rb

raise "MacRuby only code, please install http://www.macruby.org/files/nightlies/macruby_nightly-latest.pkg" unless RUBY_ENGINE == 'macruby'

framework 'Cocoa'
framework 'AddressBook'

# AB wrapper code
class ABAddressBook
  def <<(record)
    if record.is_a?(ABRecord)
      "puts adding #{record.name}"
      self.addRecord(record)
      save
      puts "saved"
    else
      raise TypeError, "You can only add contacts or groups that inherits from ABRecord" 
    end
  end
  
  def delete(record)
    if record.is_a?(ABRecord)
      self.removeRecord(record)
      self.save
    else
      raise TypeError, "You can only remove contacts or groups that inherits from ABRecord"
    end
  end
end

# AB wrapper code
class ABGroup
  def name=(value)
    self.setValue(value, forProperty: 'name')
  end
  
  def <<(person)
    raise TypeError, "You can only add an ABPerson instance to a group" unless person.is_a?(ABPerson)
    self.addMember(person) unless person.parentGroups.map{|name| name}.include?(self.name)
  end
end

class AppDelegate
  def applicationDidFinishLaunching(notification)
    puts "done loading"
  end

  def applicationWillFinishLaunching(notification)
    puts "launching almost done, drawing the window, picker & button"
    # setup the window
    win = NSWindow.alloc.initWithContentRect([100, 300, 600, 300],
        styleMask:NSTitledWindowMask|NSClosableWindowMask|NSMiniaturizableWindowMask|NSResizableWindowMask, 
        backing:NSBackingStoreBuffered, 
        defer:false)
    win.title = 'Bug report'
    win.level = 3
    win.delegate = self

    # add the picker
    picker = ABPeoplePickerView.alloc.initWithFrame([0,100, 600, 200])
    win.contentView.addSubview(picker)

    # add a button to create a group
    button = NSButton.alloc.initWithFrame([200, 10, 200, 80])
    win.contentView.addSubview(button)
    button.bezelStyle = 4
    button.title = 'Create group'
    button.target = self
    button.action = 'create_group:'

    win.display
    win.orderFrontRegardless
  end

  def windowWillClose(sender); exit; end

  # Create a group called 'TestGroup' and list all the existing groups
  def create_group(sender)
    address_book = AB
    group = ABGroup.alloc.init
    group.name = 'TestGroup'
    puts "adding test group"
    address_book << group
    address_book.save
    AB.groups.each do |group|
      puts "group: #{group.description}"
    end
    puts "Does the TestGroup appear on your screen, what about in the list above?"
    puts "Now run the same experiment but with AB.app open."
  end

end

# Clean up before running the app
AB = ABAddressBook.sharedAddressBook
test_group = AB.groups.find{|g| g.name == 'TestGroup'}
if test_group
  puts "test group present, deleting it now (#{test_group.inspect})"
  AB.delete(test_group)
end

app = NSApplication.sharedApplication
app.delegate = AppDelegate.new

app.run