def __init__(
self,
sync_base: "SyncBase",
event: str,
predicate: Callable[[T], bool] = None,
timeout: int = None,
) -> None:
self._value: Optional[T] = None
self._exception = None
self._loop = sync_base._loop
wait_helper = WaitHelper(sync_base._loop)
wait_helper.reject_on_timeout(
timeout or 30000, f'Timeout while waiting for event "${event}"')
self._future = sync_base._loop.create_task(
wait_helper.wait_for_event(sync_base._impl_obj, event, predicate))
g_self = greenlet.getcurrent()
def done_callback(task: Any) -> None:
try:
self._value = mapping.from_maybe_impl(self._future.result())
except Exception as e:
self._exception = e
finally:
g_self.switch()
self._future.add_done_callback(done_callback)
async def waitForEvent(self,
event: str,
predicate: Callable[[Any], bool] = None,
timeout: int = None) -> Any:
if timeout is None:
timeout = self._timeout_settings.timeout()
wait_helper = WaitHelper(self._loop)
wait_helper.reject_on_timeout(
timeout, f'Timeout while waiting for event "${event}"')
if event != BrowserContext.Events.Close:
wait_helper.reject_on_event(self, BrowserContext.Events.Close,
Error("Context closed"))
return await wait_helper.wait_for_event(self, event, predicate)
def __init__(
self,
channel_owner: ChannelOwner,
event: str,
predicate: Callable[[T], bool] = None,
timeout: int = None,
) -> None:
self._value: Optional[T] = None
wait_helper = WaitHelper(channel_owner._loop)
wait_helper.reject_on_timeout(
timeout or 30000, f'Timeout while waiting for event "${event}"'
)
self._future = asyncio.get_event_loop().create_task(
wait_helper.wait_for_event(channel_owner, event, predicate)
)
def _setup_navigation_wait_helper(self, timeout: int = None) -> WaitHelper:
wait_helper = WaitHelper(self._loop)
wait_helper.reject_on_event(
self._page, "close", Error("Navigation failed because page was closed!")
)
wait_helper.reject_on_event(
self._page, "crash", Error("Navigation failed because page crashed!")
)
wait_helper.reject_on_event(
self._page,
"framedetached",
Error("Navigating frame was detached!"),
lambda frame: frame == self,
)
if timeout is None:
timeout = self._page._timeout_settings.navigation_timeout()
wait_helper.reject_on_timeout(timeout, f"Timeout {timeout}ms exceeded.")
return wait_helper
async def waitForEvent(self,
event: str,
predicate: Callable[[Any], bool] = None,
timeout: int = None) -> Any:
if timeout is None:
timeout = cast(Any, self._parent)._timeout_settings.timeout()
wait_helper = WaitHelper(self._loop)
wait_helper.reject_on_timeout(
timeout, f'Timeout while waiting for event "${event}"')
if event != WebSocket.Events.Close:
wait_helper.reject_on_event(self, WebSocket.Events.Close,
Error("Socket closed"))
if event != WebSocket.Events.Error:
wait_helper.reject_on_event(self, WebSocket.Events.Error,
Error("Socket error"))
wait_helper.reject_on_event(self._parent, "close",
Error("Page closed"))
return await wait_helper.wait_for_event(self, event, predicate)