58 lines
2.0 KiB
Python
58 lines
2.0 KiB
Python
"""Support for ESPHome buttons."""
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from __future__ import annotations
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from aioesphomeapi import ButtonInfo, EntityInfo, EntityState
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from homeassistant.components.button import ButtonDeviceClass, ButtonEntity
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from homeassistant.config_entries import ConfigEntry
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from homeassistant.core import HomeAssistant, callback
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from homeassistant.helpers.entity_platform import AddEntitiesCallback
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from homeassistant.util.enum import try_parse_enum
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from .entity import EsphomeEntity, platform_async_setup_entry
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async def async_setup_entry(
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hass: HomeAssistant, entry: ConfigEntry, async_add_entities: AddEntitiesCallback
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) -> None:
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"""Set up ESPHome buttons based on a config entry."""
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await platform_async_setup_entry(
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hass,
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entry,
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async_add_entities,
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info_type=ButtonInfo,
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entity_type=EsphomeButton,
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state_type=EntityState,
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)
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class EsphomeButton(EsphomeEntity[ButtonInfo, EntityState], ButtonEntity):
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"""A button implementation for ESPHome."""
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@callback
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def _on_static_info_update(self, static_info: EntityInfo) -> None:
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"""Set attrs from static info."""
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super()._on_static_info_update(static_info)
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self._attr_device_class = try_parse_enum(
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ButtonDeviceClass, self._static_info.device_class
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)
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@callback
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def _on_device_update(self) -> None:
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"""Call when device updates or entry data changes.
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The default behavior is only to write entity state when the
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device is unavailable when the device state changes.
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This method overrides the default behavior since buttons do
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not have a state, so we will never get a state update for a
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button. As such, we need to write the state on every device
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update to ensure the button goes available and unavailable
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as the device becomes available or unavailable.
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"""
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self._on_entry_data_changed()
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self.async_write_ha_state()
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async def async_press(self) -> None:
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"""Press the button."""
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await self._client.button_command(self._key)
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