core/homeassistant/components/template/button.py

99 lines
3.1 KiB
Python

"""Support for buttons which integrates with other components."""
from __future__ import annotations
import logging
from typing import Any
import voluptuous as vol
from homeassistant.components.button import DEVICE_CLASSES_SCHEMA, ButtonEntity
from homeassistant.const import CONF_DEVICE_CLASS, CONF_NAME, CONF_UNIQUE_ID
from homeassistant.core import HomeAssistant
from homeassistant.exceptions import PlatformNotReady
import homeassistant.helpers.config_validation as cv
from homeassistant.helpers.entity_platform import AddEntitiesCallback
from homeassistant.helpers.script import Script
from homeassistant.helpers.typing import ConfigType, DiscoveryInfoType
from .const import DOMAIN
from .template_entity import (
TEMPLATE_ENTITY_AVAILABILITY_SCHEMA,
TEMPLATE_ENTITY_ICON_SCHEMA,
TemplateEntity,
)
_LOGGER = logging.getLogger(__name__)
CONF_PRESS = "press"
DEFAULT_NAME = "Template Button"
DEFAULT_OPTIMISTIC = False
BUTTON_SCHEMA = (
vol.Schema(
{
vol.Optional(CONF_NAME, default=DEFAULT_NAME): cv.template,
vol.Required(CONF_PRESS): cv.SCRIPT_SCHEMA,
vol.Optional(CONF_DEVICE_CLASS): DEVICE_CLASSES_SCHEMA,
vol.Optional(CONF_UNIQUE_ID): cv.string,
}
)
.extend(TEMPLATE_ENTITY_AVAILABILITY_SCHEMA.schema)
.extend(TEMPLATE_ENTITY_ICON_SCHEMA.schema)
)
async def _async_create_entities(
hass: HomeAssistant, definitions: list[dict[str, Any]], unique_id_prefix: str | None
) -> list[TemplateButtonEntity]:
"""Create the Template button."""
entities = []
for definition in definitions:
unique_id = definition.get(CONF_UNIQUE_ID)
if unique_id and unique_id_prefix:
unique_id = f"{unique_id_prefix}-{unique_id}"
entities.append(TemplateButtonEntity(hass, definition, unique_id))
return entities
async def async_setup_platform(
hass: HomeAssistant,
config: ConfigType,
async_add_entities: AddEntitiesCallback,
discovery_info: DiscoveryInfoType | None = None,
) -> None:
"""Set up the template button."""
if not discovery_info or "coordinator" in discovery_info:
raise PlatformNotReady(
"The template button platform doesn't support trigger entities"
)
async_add_entities(
await _async_create_entities(
hass, discovery_info["entities"], discovery_info["unique_id"]
)
)
class TemplateButtonEntity(TemplateEntity, ButtonEntity):
"""Representation of a template button."""
_attr_should_poll = False
def __init__(
self,
hass: HomeAssistant,
config,
unique_id: str | None,
) -> None:
"""Initialize the button."""
super().__init__(hass, config=config, unique_id=unique_id)
assert self._attr_name is not None
self._command_press = Script(hass, config[CONF_PRESS], self._attr_name, DOMAIN)
self._attr_device_class = config.get(CONF_DEVICE_CLASS)
self._attr_state = None
async def async_press(self) -> None:
"""Press the button."""
await self.async_run_script(self._command_press, context=self._context)