baseimage-tutorial-framework/tfw/components/frontend/frontend_handler.py

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from tfw.internals.networking import Scope
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from .message_storage import FrontendMessageStorage
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class FrontendHandler:
keys = ['message', 'queueMessages', 'dashboard', 'console']
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def __init__(self):
self.server_connector = None
self.keys = [*type(self).keys, 'recover']
self._frontend_message_storage = FrontendMessageStorage(type(self).keys)
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def send_message(self, message):
self.server_connector.send_message(message, scope=Scope.WEBSOCKET)
def handle_event(self, message, _):
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self._frontend_message_storage.save_message(message)
if message['key'] == 'recover':
self.recover_frontend()
self.send_message(message)
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def recover_frontend(self):
for message in self._frontend_message_storage.messages:
self.send_message(message)