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:
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keys = ['console', 'dashboard', 'message', 'ide.read', 'recover']
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def __init__(self):
self.connector = None
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self._frontend_message_storage = FrontendMessageStorage()
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def send_message(self, message):
self.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()
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if self._filter_message(message):
self.send_message(message)
@staticmethod
def _filter_message(message):
return not message['key'].startswith('ide')
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def recover_frontend(self):
for message in self._frontend_message_storage.messages:
self.send_message(message)