text: ''' Dummy NFC Provider to be used on desktops in case no other provider is found
  '''
  from electrum_zeny_gui.kivy.nfc_scanner import NFCBase
  from kivy.clock import Clock
  from kivy.logger import Logger
  
  class ScannerDummy(NFCBase):
      '''This is the dummy interface that gets selected in case any other
      hardware interface to NFC is not available.
      '''
  
      _initialised = False
  
      name = 'NFCDummy'
  
      def nfc_init(self):
          # print 'nfc_init()'
  
          Logger.debug('NFC: configure nfc')
          self._initialised = True
          self.nfc_enable()
          return True
  
      def on_new_intent(self, dt):
          tag_info = {'type': 'dymmy',
                      'message': 'dummy',
                      'extra details': None}
  
          # let Main app know that a tag has been detected
          app = App.get_running_app()
          app.tag_discovered(tag_info)
          app.show_info('New tag detected.', duration=2)
          Logger.debug('NFC: got new dummy tag')
  
      def nfc_enable(self):
          Logger.debug('NFC: enable')
          if self._initialised:
              Clock.schedule_interval(self.on_new_intent, 22)
  
      def nfc_disable(self):
          # print 'nfc_enable()'
          Clock.unschedule(self.on_new_intent)
  
      def nfc_enable_exchange(self, data):
          ''' Start sending data
          '''
          Logger.debug('NFC: sending data {}'.format(data))
  
      def nfc_disable_exchange(self):
          ''' Disable/Stop ndef exchange
          '''
          Logger.debug('NFC: disable nfc exchange')
  