moment/src/backend/pyotherside_events.py
miruka 9990fecc74 Begin yet another model refactor
Use native ListModel which require a lot of changes, but should be
much faster than the old way which exponentially slowed down to a crawl.
Also fix some popup bugs (leave/forget).

Not working yet: side pane keyboard controls, proper highlight,
room & member filtering, local echo replacement
2020-01-06 03:41:14 -04:00

95 lines
2.3 KiB
Python

# SPDX-License-Identifier: LGPL-3.0-or-later
from abc import ABC
from dataclasses import dataclass, field
from typing import Any, Optional
import pyotherside
from .models import SyncId
from .models.model_item import ModelItem
from .utils import serialize_value_for_qml
@dataclass
class PyOtherSideEvent:
"""Event that will be sent on instanciation to QML by PyOtherSide."""
json_lists = False
def __post_init__(self) -> None:
# CPython 3.6 or any Python implemention >= 3.7 is required for correct
# __dataclass_fields__ dict order.
args = [
serialize_value_for_qml(getattr(self, field), self.json_lists)
for field in self.__dataclass_fields__ # type: ignore
]
pyotherside.send(type(self).__name__, *args)
@dataclass
class ExitRequested(PyOtherSideEvent):
"""Request for the application to exit."""
exit_code: int = 0
@dataclass
class AlertRequested(PyOtherSideEvent):
"""Request a window manager alert to be shown.
Sets the urgency hint for compliant X11/Wayland window managers;
flashes the taskbar icon on Windows.
"""
@dataclass
class CoroutineDone(PyOtherSideEvent):
"""Indicate that an asyncio coroutine finished."""
uuid: str = field()
result: Any = None
exception: Optional[Exception] = None
traceback: Optional[str] = None
@dataclass
class LoopException(PyOtherSideEvent):
"""Indicate that an uncaught exception occured in the asyncio loop."""
message: str = field()
exception: Optional[Exception] = field()
traceback: Optional[str] = None
@dataclass
class ModelEvent(ABC, PyOtherSideEvent):
json_lists = True
@dataclass
class ModelItemInserted(ModelEvent):
sync_id: SyncId = field()
index: int = field()
item: ModelItem = field()
@dataclass
class ModelItemFieldChanged(ModelEvent):
sync_id: SyncId = field()
item_index_then: int = field()
item_index_now: int = field()
changed_field: str = field()
field_value: Any = field()
@dataclass
class ModelItemDeleted(ModelEvent):
sync_id: SyncId = field()
index: int = field()
@dataclass
class ModelCleared(ModelEvent):
sync_id: SyncId = field()