maubot/maubot/handlers/event.py
2023-09-06 22:02:59 +03:00

44 lines
1.7 KiB
Python

# maubot - A plugin-based Matrix bot system.
# Copyright (C) 2022 Tulir Asokan
#
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU Affero General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU Affero General Public License for more details.
#
# You should have received a copy of the GNU Affero General Public License
# along with this program. If not, see <https://www.gnu.org/licenses/>.
from __future__ import annotations
from typing import Callable, NewType
from mautrix.client import EventHandler, InternalEventType
from mautrix.types import EventType
EventHandlerDecorator = NewType("EventHandlerDecorator", Callable[[EventHandler], EventHandler])
def on(var: EventType | InternalEventType | EventHandler) -> EventHandlerDecorator | EventHandler:
def decorator(func: EventHandler) -> EventHandler:
func.__mb_event_handler__ = True
if isinstance(var, (EventType, InternalEventType)):
if hasattr(func, "__mb_event_types__"):
func.__mb_event_types__.add(var)
else:
func.__mb_event_types__ = {var}
else:
func.__mb_event_types__ = {EventType.ALL}
return func
return decorator if isinstance(var, (EventType, InternalEventType)) else decorator(var)
def off(func: EventHandler) -> EventHandler:
func.__mb_event_handler__ = False
return func