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41 lines
1.4 KiB
Python
41 lines
1.4 KiB
Python
"""Provides triggers for selects."""
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from homeassistant.components.input_select import DOMAIN as INPUT_SELECT_DOMAIN
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from homeassistant.const import STATE_UNAVAILABLE, STATE_UNKNOWN
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from homeassistant.core import HomeAssistant, State
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from homeassistant.helpers.automation import DomainSpec
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from homeassistant.helpers.trigger import (
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ENTITY_STATE_TRIGGER_SCHEMA,
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StringEntityTriggerBase,
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Trigger,
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)
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from .const import DOMAIN
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class SelectionChangedTrigger(StringEntityTriggerBase):
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"""Trigger for select entity when its selection changes."""
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_domain_specs = {DOMAIN: DomainSpec(), INPUT_SELECT_DOMAIN: DomainSpec()}
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_schema = ENTITY_STATE_TRIGGER_SCHEMA
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def is_valid_transition(self, from_state: State, to_state: State) -> bool:
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"""Check if the origin state is valid and the state has changed."""
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if from_state.state in (STATE_UNAVAILABLE, STATE_UNKNOWN):
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return False
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return from_state.state != to_state.state
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def is_valid_state(self, state: State) -> bool:
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"""Check if the new state is not invalid."""
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return state.state not in (STATE_UNAVAILABLE, STATE_UNKNOWN)
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TRIGGERS: dict[str, type[Trigger]] = {
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"selection_changed": SelectionChangedTrigger,
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}
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async def async_get_triggers(hass: HomeAssistant) -> dict[str, type[Trigger]]:
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"""Return the triggers for selects."""
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return TRIGGERS
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