120 lines
3.9 KiB
Python
120 lines
3.9 KiB
Python
# Copyright 2019 miruka
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# This file is part of harmonyqml, licensed under GPLv3.
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from threading import Lock
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from typing import Any, Deque, Dict, List, Optional
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from PyQt5.QtCore import QDateTime, QObject, pyqtBoundSignal
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from .backend import Backend
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from .client import Client
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from .model.items import Room, RoomEvent, User
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class SignalManager(QObject):
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_duplicate_check_lock: Lock = Lock()
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def __init__(self, backend: Backend) -> None:
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super().__init__(parent=backend)
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self.backend = backend
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self.last_room_events: Deque[str] = Deque(maxlen=1000)
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cm = self.backend.clientManager
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cm.clientAdded.connect(self.onClientAdded)
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cm.clientDeleted.connect(self.onClientDeleted)
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def onClientAdded(self, client: Client) -> None:
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self.connectClient(client)
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self.backend.models.accounts.append(User(
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user_id = client.userID,
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display_name = client.userID.lstrip("@").split(":")[0],
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))
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def onClientDeleted(self, user_id: str) -> None:
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accs = self.backend.models.accounts
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del accs[accs.indexWhere("user_id", user_id)]
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def connectClient(self, client: Client) -> None:
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for name in dir(client):
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attr = getattr(client, name)
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if isinstance(attr, pyqtBoundSignal):
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def onSignal(*args, name=name) -> None:
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func = getattr(self, f"on{name[0].upper()}{name[1:]}")
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func(client, *args)
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attr.connect(onSignal)
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def onRoomInvited(self, client: Client, room_id: str) -> None:
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pass # TODO
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def onRoomJoined(self, client: Client, room_id: str) -> None:
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model = self.backend.models.rooms[client.userID]
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room = client.nio.rooms[room_id]
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def group_name() -> Optional[str]:
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name = room.group_name()
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return None if name == "Empty room?" else name
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item = Room(
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room_id = room_id,
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display_name = room.name or room.canonical_alias or group_name(),
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description = getattr(room, "topic", ""), # FIXME: outside init
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)
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try:
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index = model.indexWhere("room_id", room_id)
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except ValueError:
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model.append(item)
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else:
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model[index] = item
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def onRoomLeft(self, client: Client, room_id: str) -> None:
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rooms = self.backend.models.rooms[client.userID]
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del rooms[rooms.indexWhere("room_id", room_id)]
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def onRoomEventReceived(
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self, _: Client, room_id: str, etype: str, edict: Dict[str, Any]
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) -> None:
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# Prevent duplicate events in models due to multiple accounts
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with self._duplicate_check_lock:
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if edict["event_id"] in self.last_room_events:
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return
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self.last_room_events.appendleft(edict["event_id"])
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model = self.backend.models.roomEvents[room_id]
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date_time = QDateTime.fromMSecsSinceEpoch(edict["server_timestamp"])
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new_event = RoomEvent(type=etype, date_time=date_time, dict=edict)
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# Insert event in model at the right position, based on timestamps
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# to keep them sorted by date of arrival.
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# Iterate in reverse, since a new event is more likely to be appended,
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# but events can arrive out of order.
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if not model or model[-1].date_time < new_event.date_time:
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model.append(new_event)
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else:
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for i, event in enumerate(reversed(model)):
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if event.date_time < new_event.date_time:
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model.insert(-i, new_event)
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break
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else:
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model.insert(0, new_event)
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def onRoomTypingUsersUpdated(
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self, client: Client, room_id: str, users: List[str]
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) -> None:
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rooms = self.backend.models.rooms[client.userID]
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rooms[rooms.indexWhere("room_id", room_id)].typing_users = users
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