def goto_step(self, step_number):
logging.debug('[Protocol].goto_step(%s)' % step_number)
self.current_step_number = step_number
original_step_number = self.current_step_number
for plugin_name in self.current_step().plugins:
emit_signal('on_step_options_swapped',
[plugin_name,
original_step_number,
step_number],
interface=IPlugin)
with closing(StringIO()) as sio:
for plugin_name, fields in self.plugin_fields.iteritems():
observers = ExtensionPoint(IPlugin)
service = observers.service(plugin_name)
if service is None:
# We can end up here if a service has been disabled.
# TODO: protocol.plugin_fields should likely be updated
# whenever a plugin is enabled/disabled...
continue
if hasattr(service, 'get_step_value'):
print >> sio, '[ProtocolController] plugin.name=%s field_values='\
% (plugin_name),
print >> sio, [service.get_step_value(f) for f in fields]
logging.debug(sio.getvalue())
emit_signal('on_step_swapped', [original_step_number, step_number])
def get_device_directory(self):
observers = ExtensionPoint(IPlugin)
plugin_name = 'microdrop.gui.dmf_device_controller'
service = observers.service(plugin_name)
values = service.get_app_values()
if values and 'device_directory' in values:
directory = path(values['device_directory'])
if directory.isdir():
return directory
return None
def _get_app_values(self, plugin_name):
observers = ExtensionPoint(IPlugin)
service = observers.service(plugin_name)
if not hasattr(service, 'get_app_values'):
values = dict([(k, v.value) for k,v in self.forms[plugin_name].from_defaults().iteritems()])
else:
values = service.get_app_values()
if not values:
return {}
else:
return values
def apply(self):
for name, form_view in self.form_views.iteritems():
fields = form_view.form.fields.keys()
attrs = {}
for field in fields:
if form_view.form.fields[field].element.validate():
attrs[field] = form_view.form.fields[field].element.value
else:
logger.error('Failed to set %s value for %s' % (field, name))
if attrs:
observers = ExtensionPoint(IPlugin)
service = observers.service(name)
service.set_app_values(attrs)
def get_plugin_step_values(plugin_name, step_number=None):
observers = ExtensionPoint(IPlugin)
service = observers.service(plugin_name)
if hasattr(service, 'get_step_values'):
return service.get_step_values(step_number)
return None
def get_plugin_app_values(plugin_name):
observers = ExtensionPoint(IPlugin)
service = observers.service(plugin_name)
if hasattr(service, 'get_app_values'):
return service.get_app_values()
return None