baseimage-tutorial-framework/lib/tfw/builtins/frontend_event_handler.py

22 lines
771 B
Python

from tfw.networking import Scope
from tfw.components import FrontendMessageStorage
from .event_handler import EventHandler
class FrontendEventHandler(EventHandler):
def __init__(self):
frontend_keys = ('message', 'queueMessages', 'dashboard', 'console')
self._frontend_message_storage = FrontendMessageStorage(frontend_keys)
super().__init__((*frontend_keys, 'recover'), scope=Scope.WEBSOCKET)
def handle_event(self, message):
self._frontend_message_storage.save_message(message)
if message['key'] == 'recover':
self.recover_frontend()
self.send_message(message)
def recover_frontend(self):
for message in self._frontend_message_storage.messages:
self.send_message(message)