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This commit is contained in:
Paulus Schoutsen 2019-07-31 12:25:30 -07:00
parent da05dfe708
commit 4de97abc3a
2676 changed files with 163166 additions and 140084 deletions
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29
homeassistant/helpers/dispatcher.py
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@ -10,15 +10,17 @@ from .typing import HomeAssistantType
_LOGGER = logging.getLogger(__name__)
DATA_DISPATCHER = 'dispatcher'
DATA_DISPATCHER = "dispatcher"
@bind_hass
def dispatcher_connect(hass: HomeAssistantType, signal: str,
target: Callable[..., None]) -> Callable[[], None]:
def dispatcher_connect(
hass: HomeAssistantType, signal: str, target: Callable[..., None]
) -> Callable[[], None]:
"""Connect a callable function to a signal."""
async_unsub = run_callback_threadsafe(
hass.loop, async_dispatcher_connect, hass, signal, target).result()
hass.loop, async_dispatcher_connect, hass, signal, target
).result()
def remove_dispatcher() -> None:
"""Remove signal listener."""
@ -29,8 +31,9 @@ def dispatcher_connect(hass: HomeAssistantType, signal: str,
@callback
@bind_hass
def async_dispatcher_connect(hass: HomeAssistantType, signal: str,
target: Callable[..., Any]) -> Callable[[], None]:
def async_dispatcher_connect(
hass: HomeAssistantType, signal: str, target: Callable[..., Any]
) -> Callable[[], None]:
"""Connect a callable function to a signal.
This method must be run in the event loop.
@ -42,9 +45,11 @@ def async_dispatcher_connect(hass: HomeAssistantType, signal: str,
hass.data[DATA_DISPATCHER][signal] = []
wrapped_target = catch_log_exception(
target, lambda *args:
"Exception in {} when dispatching '{}': {}".format(
target.__name__, signal, args))
target,
lambda *args: "Exception in {} when dispatching '{}': {}".format(
target.__name__, signal, args
),
)
hass.data[DATA_DISPATCHER][signal].append(wrapped_target)
@ -56,8 +61,7 @@ def async_dispatcher_connect(hass: HomeAssistantType, signal: str,
except (KeyError, ValueError):
# KeyError is key target listener did not exist
# ValueError if listener did not exist within signal
_LOGGER.warning(
"Unable to remove unknown dispatcher %s", target)
_LOGGER.warning("Unable to remove unknown dispatcher %s", target)
return async_remove_dispatcher
@ -70,8 +74,7 @@ def dispatcher_send(hass: HomeAssistantType, signal: str, *args: Any) -> None:
@callback
@bind_hass
def async_dispatcher_send(
hass: HomeAssistantType, signal: str, *args: Any) -> None:
def async_dispatcher_send(hass: HomeAssistantType, signal: str, *args: Any) -> None:
"""Send signal and data.
This method must be run in the event loop.