Add trigger selector for blueprint (#103050)

homeassistant/helpers/selector.py

@@ -459,7 +459,7 @@ class ColorTempSelector(Selector[ColorTempSelectorConfig]):
 
 
 class ConditionSelectorConfig(TypedDict):
-    """Class to represent an action selector config."""
+    """Class to represent an condition selector config."""
 
 
 @SELECTORS.register("condition")
@@ -1280,6 +1280,27 @@ class TimeSelector(Selector[TimeSelectorConfig]):
         return cast(str, data)
 
 
+class TriggerSelectorConfig(TypedDict):
+    """Class to represent an trigger selector config."""
+
+
+@SELECTORS.register("trigger")
+class TriggerSelector(Selector[TriggerSelectorConfig]):
+    """Selector of a trigger sequence (script syntax)."""
+
+    selector_type = "trigger"
+
+    CONFIG_SCHEMA = vol.Schema({})
+
+    def __init__(self, config: TriggerSelectorConfig | None = None) -> None:
+        """Instantiate a selector."""
+        super().__init__(config)
+
+    def __call__(self, data: Any) -> Any:
+        """Validate the passed selection."""
+        return vol.Schema(cv.TRIGGER_SCHEMA)(data)
+
+
 class FileSelectorConfig(TypedDict):
     """Class to represent a file selector config."""
 

tests/helpers/test_selector.py

@@ -1074,3 +1074,27 @@ def test_condition_selector_schema(
 ) -> None:
     """Test condition sequence selector."""
     _test_selector("condition", schema, valid_selections, invalid_selections)
+
+
+@pytest.mark.parametrize(
+    ("schema", "valid_selections", "invalid_selections"),
+    (
+        (
+            {},
+            (
+                [
+                    {
+                        "platform": "numeric_state",
+                        "entity_id": ["sensor.temperature"],
+                        "below": 20,
+                    }
+                ],
+                [],
+            ),
+            ("abc"),
+        ),
+    ),
+)
+def test_trigger_selector_schema(schema, valid_selections, invalid_selections) -> None:
+    """Test trigger sequence selector."""
+    _test_selector("trigger", schema, valid_selections, invalid_selections)