mirror of https://github.com/home-assistant/core
148 lines
4.5 KiB
Python
148 lines
4.5 KiB
Python
"""Component to pressing a button as platforms."""
|
|
|
|
from __future__ import annotations
|
|
|
|
from datetime import timedelta
|
|
from enum import StrEnum
|
|
import logging
|
|
from typing import final
|
|
|
|
from propcache import cached_property
|
|
import voluptuous as vol
|
|
|
|
from homeassistant.config_entries import ConfigEntry
|
|
from homeassistant.const import STATE_UNAVAILABLE
|
|
from homeassistant.core import HomeAssistant
|
|
from homeassistant.helpers import config_validation as cv
|
|
from homeassistant.helpers.entity import EntityDescription
|
|
from homeassistant.helpers.entity_component import EntityComponent
|
|
from homeassistant.helpers.restore_state import RestoreEntity
|
|
from homeassistant.helpers.typing import ConfigType
|
|
from homeassistant.util import dt as dt_util
|
|
from homeassistant.util.hass_dict import HassKey
|
|
|
|
from .const import DOMAIN, SERVICE_PRESS
|
|
|
|
_LOGGER = logging.getLogger(__name__)
|
|
|
|
DATA_COMPONENT: HassKey[EntityComponent[ButtonEntity]] = HassKey(DOMAIN)
|
|
ENTITY_ID_FORMAT = DOMAIN + ".{}"
|
|
PLATFORM_SCHEMA = cv.PLATFORM_SCHEMA
|
|
PLATFORM_SCHEMA_BASE = cv.PLATFORM_SCHEMA_BASE
|
|
SCAN_INTERVAL = timedelta(seconds=30)
|
|
|
|
MIN_TIME_BETWEEN_SCANS = timedelta(seconds=10)
|
|
|
|
|
|
class ButtonDeviceClass(StrEnum):
|
|
"""Device class for buttons."""
|
|
|
|
IDENTIFY = "identify"
|
|
RESTART = "restart"
|
|
UPDATE = "update"
|
|
|
|
|
|
DEVICE_CLASSES_SCHEMA = vol.All(vol.Lower, vol.Coerce(ButtonDeviceClass))
|
|
|
|
# mypy: disallow-any-generics
|
|
|
|
|
|
async def async_setup(hass: HomeAssistant, config: ConfigType) -> bool:
|
|
"""Set up Button entities."""
|
|
component = hass.data[DATA_COMPONENT] = EntityComponent[ButtonEntity](
|
|
_LOGGER, DOMAIN, hass, SCAN_INTERVAL
|
|
)
|
|
await component.async_setup(config)
|
|
|
|
component.async_register_entity_service(
|
|
SERVICE_PRESS,
|
|
None,
|
|
"_async_press_action",
|
|
)
|
|
|
|
return True
|
|
|
|
|
|
async def async_setup_entry(hass: HomeAssistant, entry: ConfigEntry) -> bool:
|
|
"""Set up a config entry."""
|
|
return await hass.data[DATA_COMPONENT].async_setup_entry(entry)
|
|
|
|
|
|
async def async_unload_entry(hass: HomeAssistant, entry: ConfigEntry) -> bool:
|
|
"""Unload a config entry."""
|
|
return await hass.data[DATA_COMPONENT].async_unload_entry(entry)
|
|
|
|
|
|
class ButtonEntityDescription(EntityDescription, frozen_or_thawed=True):
|
|
"""A class that describes button entities."""
|
|
|
|
device_class: ButtonDeviceClass | None = None
|
|
|
|
|
|
CACHED_PROPERTIES_WITH_ATTR_ = {
|
|
"device_class",
|
|
}
|
|
|
|
|
|
class ButtonEntity(RestoreEntity, cached_properties=CACHED_PROPERTIES_WITH_ATTR_):
|
|
"""Representation of a Button entity."""
|
|
|
|
entity_description: ButtonEntityDescription
|
|
_attr_should_poll = False
|
|
_attr_device_class: ButtonDeviceClass | None
|
|
_attr_state: None = None
|
|
__last_pressed_isoformat: str | None = None
|
|
|
|
def _default_to_device_class_name(self) -> bool:
|
|
"""Return True if an unnamed entity should be named by its device class.
|
|
|
|
For buttons this is True if the entity has a device class.
|
|
"""
|
|
return self.device_class is not None
|
|
|
|
@cached_property
|
|
def device_class(self) -> ButtonDeviceClass | None:
|
|
"""Return the class of this entity."""
|
|
if hasattr(self, "_attr_device_class"):
|
|
return self._attr_device_class
|
|
if hasattr(self, "entity_description"):
|
|
return self.entity_description.device_class
|
|
return None
|
|
|
|
@cached_property
|
|
@final
|
|
def state(self) -> str | None:
|
|
"""Return the entity state."""
|
|
return self.__last_pressed_isoformat
|
|
|
|
def __set_state(self, state: str | None) -> None:
|
|
"""Set the entity state."""
|
|
# Invalidate the cache of the cached property
|
|
self.__dict__.pop("state", None)
|
|
self.__last_pressed_isoformat = state
|
|
|
|
@final
|
|
async def _async_press_action(self) -> None:
|
|
"""Press the button (from e.g., service call).
|
|
|
|
Should not be overridden, handle setting last press timestamp.
|
|
"""
|
|
self.__set_state(dt_util.utcnow().isoformat())
|
|
self.async_write_ha_state()
|
|
await self.async_press()
|
|
|
|
async def async_internal_added_to_hass(self) -> None:
|
|
"""Call when the button is added to hass."""
|
|
await super().async_internal_added_to_hass()
|
|
state = await self.async_get_last_state()
|
|
if state is not None and state.state not in (STATE_UNAVAILABLE, None):
|
|
self.__set_state(state.state)
|
|
|
|
def press(self) -> None:
|
|
"""Press the button."""
|
|
raise NotImplementedError
|
|
|
|
async def async_press(self) -> None:
|
|
"""Press the button."""
|
|
await self.hass.async_add_executor_job(self.press)
|