307 lines
11 KiB
Python
307 lines
11 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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import nio
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from nio.rooms import MatrixRoom
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from .backend import Backend
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from .client import Client
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from .model.items import Account, ListModel, Room, RoomCategory, RoomEvent
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from .model.sort_filter_proxy import SortFilterProxy
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Inviter = Optional[Dict[str, str]]
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LeftEvent = Optional[Dict[str, str]]
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class SignalManager(QObject):
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_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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self._events_in_transfer: int = 0
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self.backend.clients.clientAdded.connect(self.onClientAdded)
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self.backend.clients.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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room_categories_kwargs: List[Dict[str, Any]] = [
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{"name": "Invites", "rooms": ListModel()},
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{"name": "Rooms", "rooms": ListModel()},
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{"name": "Left", "rooms": ListModel()},
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]
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for i, _ in enumerate(room_categories_kwargs):
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proxy = SortFilterProxy(
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source_model = room_categories_kwargs[i]["rooms"],
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sort_by_role = "lastEventDateTime",
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ascending = False,
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)
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room_categories_kwargs[i]["sortedRooms"] = proxy
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self.backend.accounts.append(Account(
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userId = client.userId,
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roomCategories = ListModel([
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RoomCategory(**kws) for kws in room_categories_kwargs
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]),
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displayName = self.backend.getUserDisplayName(client.userId),
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))
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def onClientDeleted(self, user_id: str) -> None:
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del self.backend.accounts[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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@staticmethod
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def _get_room_displayname(nio_room: MatrixRoom) -> Optional[str]:
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name = nio_room.name or nio_room.canonical_alias
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if name:
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return name
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name = nio_room.group_name()
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return None if name == "Empty room?" else name
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def onRoomInvited(self,
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client: Client,
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room_id: str,
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inviter: Inviter = None) -> None:
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nio_room = client.nio.invited_rooms[room_id]
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categories = self.backend.accounts[client.userId].roomCategories
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categories["Rooms"].rooms.pop(room_id, None)
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categories["Left"].rooms.pop(room_id, None)
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categories["Invites"].rooms.upsert(
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where_main_key_is = room_id,
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update_with = Room(
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roomId = room_id,
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displayName = self._get_room_displayname(nio_room),
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topic = nio_room.topic,
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inviter = inviter,
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lastEventDateTime = QDateTime.currentDateTime(), # FIXME
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),
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new_index_if_insert = 0,
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ignore_roles = ("typingUsers"),
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)
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def onRoomJoined(self, client: Client, room_id: str) -> None:
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nio_room = client.nio.rooms[room_id]
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categories = self.backend.accounts[client.userId].roomCategories
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categories["Invites"].rooms.pop(room_id, None)
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categories["Left"].rooms.pop(room_id, None)
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categories["Rooms"].rooms.upsert(
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where_main_key_is = room_id,
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update_with = Room(
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roomId = room_id,
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displayName = self._get_room_displayname(nio_room),
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topic = nio_room.topic,
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),
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new_index_if_insert = 0,
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ignore_roles = ("typingUsers", "lastEventDateTime"),
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)
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def onRoomLeft(self,
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client: Client,
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room_id: str,
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left_event: LeftEvent = None) -> None:
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categories = self.backend.accounts[client.userId].roomCategories
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previous = categories["Rooms"].rooms.pop(room_id, None)
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previous = previous or categories["Invites"].rooms.pop(room_id, None)
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previous = previous or categories["Left"].rooms.get(room_id, None)
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left_time = left_event.get("server_timestamp") if left_event else None
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categories["Left"].rooms.upsert(
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where_main_key_is = room_id,
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update_with = Room(
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roomId = room_id,
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displayName = previous.displayName if previous else None,
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topic = previous.topic if previous else None,
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leftEvent = left_event,
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lastEventDateTime = (
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QDateTime.fromMSecsSinceEpoch(left_time)
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if left_time else QDateTime.currentDateTime()
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),
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),
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new_index_if_insert = 0,
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ignore_roles = ("typingUsers", "lastEventDateTime"),
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)
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def onRoomSyncPrevBatchTokenReceived(self,
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_: Client,
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room_id: str,
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token: str) -> None:
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if room_id not in self.backend.past_tokens:
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self.backend.past_tokens[room_id] = token
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def onRoomPastPrevBatchTokenReceived(self,
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_: Client,
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room_id: str,
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token: str) -> None:
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if self.backend.past_tokens[room_id] == token:
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self.backend.fully_loaded_rooms.add(room_id)
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self.backend.past_tokens[room_id] = token
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def _set_room_last_event(self, user_id: str, room_id: str, event: RoomEvent
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) -> None:
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for categ in self.backend.accounts[user_id].roomCategories:
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if room_id in categ.rooms:
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# Use setProperty to make sure to trigger model changed signals
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categ.rooms.setProperty(
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room_id, "lastEventDateTime", event.dateTime
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)
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def onRoomEventReceived(self,
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client: Client,
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room_id: str,
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etype: str,
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edict: Dict[str, Any]) -> None:
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def process() -> Optional[RoomEvent]:
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# Prevent duplicate events in models due to multiple accounts
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if edict["event_id"] in self.last_room_events:
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return None
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self.last_room_events.appendleft(edict["event_id"])
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model = self.backend.roomEvents[room_id]
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date_time = QDateTime\
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.fromMSecsSinceEpoch(edict["server_timestamp"])
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new_event = RoomEvent(type=etype, dateTime=date_time, dict=edict)
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event_is_our_profile_changed = (
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etype == "RoomMemberEvent" and
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edict.get("sender") in self.backend.clients and
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((edict.get("content") or {}).get("membership") ==
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(edict.get("prev_content") or {}).get("membership"))
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)
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if event_is_our_profile_changed:
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return None
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if etype == "RoomCreateEvent":
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self.backend.fully_loaded_rooms.add(room_id)
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if self._events_in_transfer:
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local_echoes_met: int = 0
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update_at: Optional[int] = None
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# Find if any locally echoed event corresponds to new_event
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for i, event in enumerate(model):
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if not event.isLocalEcho:
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continue
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sb = (event.dict["sender"], event.dict["body"])
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new_sb = (new_event.dict["sender"], new_event.dict["body"])
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if sb == new_sb:
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# The oldest matching local echo shall be replaced
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update_at = max(update_at or 0, i)
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local_echoes_met += 1
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if local_echoes_met >= self._events_in_transfer:
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break
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if update_at is not None:
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model.update(update_at, new_event)
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self._events_in_transfer -= 1
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return new_event
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for i, event in enumerate(model):
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if event.isLocalEcho:
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continue
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# Model is sorted from newest to oldest message
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if new_event.dateTime > event.dateTime:
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model.insert(i, new_event)
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return new_event
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model.append(new_event)
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return new_event
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with self._lock:
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new_event = process()
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if new_event:
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self._set_room_last_event(client.userId, room_id, new_event)
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def onRoomTypingUsersUpdated(self,
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client: Client,
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room_id: str,
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users: List[str]) -> None:
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categories = self.backend.accounts[client.userId].roomCategories
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for categ in categories:
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try:
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categ.rooms.setProperty(room_id, "typingUsers", users)
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break
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except ValueError:
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pass
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def onMessageAboutToBeSent(self,
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client: Client,
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room_id: str,
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content: Dict[str, str]) -> None:
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with self._lock:
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model = self.backend.roomEvents[room_id]
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nio_event = nio.events.RoomMessage.parse_event({
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"event_id": "",
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"sender": client.userId,
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"origin_server_ts": QDateTime.currentMSecsSinceEpoch(),
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"content": content,
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})
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event = RoomEvent(
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type = type(nio_event).__name__,
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dict = nio_event.__dict__,
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isLocalEcho = True,
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)
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model.insert(0, event)
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self._events_in_transfer += 1
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self._set_room_last_event(client.userId, room_id, event)
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def onRoomAboutToBeForgotten(self, client: Client, room_id: str) -> None:
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categories = self.backend.accounts[client.userId].roomCategories
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for categ in categories:
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categ.rooms.pop(room_id, None)
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self.backend.roomEvents[room_id].clear()
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