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core/homeassistant/components/text/trigger.py

41 lines
1.4 KiB
Python

"""Provides triggers for text and input_text entities."""
from homeassistant.components.input_text import DOMAIN as INPUT_TEXT_DOMAIN
from homeassistant.const import STATE_UNAVAILABLE, STATE_UNKNOWN
from homeassistant.core import HomeAssistant, State
from homeassistant.helpers.automation import DomainSpec
from homeassistant.helpers.trigger import (
ENTITY_STATE_TRIGGER_SCHEMA,
EntityTriggerBase,
Trigger,
)
from .const import DOMAIN
class TextChangedTrigger(EntityTriggerBase):
"""Trigger for text and input_text entities when their content changes."""
_domain_specs = {DOMAIN: DomainSpec(), INPUT_TEXT_DOMAIN: DomainSpec()}
_schema = ENTITY_STATE_TRIGGER_SCHEMA
def is_valid_transition(self, from_state: State, to_state: State) -> bool:
"""Check if the origin state is valid and the state has changed."""
if from_state.state in (STATE_UNAVAILABLE, STATE_UNKNOWN):
return False
return from_state.state != to_state.state
def is_valid_state(self, state: State) -> bool:
"""Check if the new state is not invalid."""
return state.state not in (STATE_UNAVAILABLE, STATE_UNKNOWN)
TRIGGERS: dict[str, type[Trigger]] = {
"changed": TextChangedTrigger,
}
async def async_get_triggers(hass: HomeAssistant) -> dict[str, type[Trigger]]:
"""Return the triggers for text and input_text entities."""
return TRIGGERS