import asyncio
import inspect
import traceback
from typing import Awaitable, Callable, Dict
import greenlet
from patchright._impl._connection import ChannelOwner
from patchright._impl._errors import Error, is_target_closed_error
class Disposable(ChannelOwner):
def __init__(
self, parent: ChannelOwner, type: str, guid: str, initializer: Dict
) -> None:
super().__init__(parent, type, guid, initializer)
async def dispose(self) -> None:
try:
await self._channel.send("dispose", None)
except Exception as e:
if not is_target_closed_error(e):
raise e
async def close(self) -> None:
await self.dispose()
def __repr__(self) -> str:
return "<Disposable>"
class DisposableStub:
def __init__(
self, dispose_fn: Callable[[], Awaitable[None]], parent: ChannelOwner
) -> None:
self._dispose_fn = dispose_fn
self._loop = parent._loop
self._dispatcher_fiber = parent._dispatcher_fiber
async def dispose(self) -> None:
await self._dispose_fn()
async def __aenter__(self) -> "DisposableStub":
return self
async def __aexit__(self, *args: object) -> None:
await self.dispose()
def __enter__(self) -> "DisposableStub":
return self
def __exit__(self, *args: object) -> None:
self._sync(self.dispose())
def _sync(self, coro: object) -> object:
__tracebackhide__ = True
if self._loop.is_closed():
coro.close()
raise Error("Event loop is closed! Is Playwright already stopped?")
g_self = greenlet.getcurrent()
task = self._loop.create_task(coro)
setattr(task, "__pw_stack__", inspect.stack(0))
setattr(task, "__pw_stack_trace__", traceback.extract_stack(limit=10))
task.add_done_callback(lambda _: g_self.switch())
while not task.done():
self._dispatcher_fiber.switch()
asyncio._set_running_loop(self._loop)
return task.result()
async def close(self) -> None:
await self.dispose()
def __repr__(self) -> str:
return "<Disposable>"