old_contents: # Copyright 2017 Canonical, Ltd.
  #
  # This program is free software: you can redistribute it and/or modify
  # it under the terms of the GNU Affero General Public License as
  # published by the Free Software Foundation, either version 3 of the
  # License, or (at your option) any later version.
  #
  # This program is distributed in the hope that it will be useful,
  # but WITHOUT ANY WARRANTY; without even the implied warranty of
  # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  # GNU Affero General Public License for more details.
  #
  # You should have received a copy of the GNU Affero General Public License
  # along with this program.  If not, see <http://www.gnu.org/licenses/>.
  
  from urwid import AttrMap, Button, Text
  
  def _stylized_button(left, right, stocklabel, style):
      class Btn(Button):
          button_left = Text(left)
          button_right = Text(right)
  
      class StyleAttrMap(AttrMap):
          def __init__(self, *args, **kwargs):
              label = kwargs.pop('label', stocklabel)
              btn = Btn(label, *args, **kwargs)
              super().__init__(btn, style + '_button', style + '_button focus')
      return StyleAttrMap
  
  def stylized_button(stocklabel, style):
      return _stylized_button('[', ']', stocklabel, style)
  
  def menu_btn(label, on_press=None, user_arg=None):
      MenuBtn=_stylized_button('', '>', label, 'menu')
      return MenuBtn(on_press=on_press, user_data=user_arg)
  
  ok_btn = stylized_button("OK", "save")
  done_btn = stylized_button("Done", "save")
  
  reset_btn = stylized_button("Reset", "reset")
  
  cancel_btn = stylized_button("Cancel", "cancel")
  close_btn = stylized_button("Close", "cancel")
  
  danger_btn = stylized_button("Continue", "danger")
  delete_btn = stylized_button("Delete", "danger")
  
new_contents: # Copyright 2017 Canonical, Ltd.
  #
  # This program is free software: you can redistribute it and/or modify
  # it under the terms of the GNU Affero General Public License as
  # published by the Free Software Foundation, either version 3 of the
  # License, or (at your option) any later version.
  #
  # This program is distributed in the hope that it will be useful,
  # but WITHOUT ANY WARRANTY; without even the implied warranty of
  # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  # GNU Affero General Public License for more details.
  #
  # You should have received a copy of the GNU Affero General Public License
  # along with this program.  If not, see <http://www.gnu.org/licenses/>.
  
  from urwid import AttrMap, Button, Text
  
  def _stylized_button(left, right, stocklabel, style):
      class Btn(Button):
          button_left = Text(left)
          button_right = Text(right)
  
      class StyleAttrMap(AttrMap):
          def __init__(self, *args, **kwargs):
              label = kwargs.pop('label', _(stocklabel))
              btn = Btn(label, *args, **kwargs)
              super().__init__(btn, style + '_button', style + '_button focus')
      return StyleAttrMap
  
  def stylized_button(stocklabel, style):
      return _stylized_button('[', ']', stocklabel, style)
  
  def menu_btn(label, on_press=None, user_arg=None):
      MenuBtn=_stylized_button('', '>', label, 'menu')
      return MenuBtn(on_press=on_press, user_data=user_arg)
  
  ok_btn = stylized_button("OK", "save")
  done_btn = stylized_button("Done", "save")
  
  reset_btn = stylized_button("Reset", "reset")
  
  cancel_btn = stylized_button("Cancel", "cancel")
  close_btn = stylized_button("Close", "cancel")
  
  danger_btn = stylized_button("Continue", "danger")
  delete_btn = stylized_button("Delete", "danger")
  
subject: Refresh Button labels upon init.