Lovelace: Fire event on save (#24104)

* Lovelace: Fire event on save

* Add event to whitelist

homeassistant/components/lovelace/__init__.py

@@ -26,6 +26,7 @@ CONFIG_SCHEMA = vol.Schema({
     }),
 }, extra=vol.ALLOW_EXTRA)
 
+EVENT_LOVELACE_UPDATED = 'lovelace_updated'
 
 LOVELACE_CONFIG_FILE = 'ui-lovelace.yaml'
 
@@ -83,6 +84,7 @@ class LovelaceStorage:
         """Initialize Lovelace config based on storage helper."""
         self._store = hass.helpers.storage.Store(STORAGE_VERSION, STORAGE_KEY)
         self._data = None
+        self._hass = hass
 
     async def async_get_info(self):
         """Return the YAML storage mode."""
@@ -115,6 +117,8 @@ class LovelaceStorage:
         self._data['config'] = config
         await self._store.async_save(self._data)
 
+        self._hass.bus.async_fire(EVENT_LOVELACE_UPDATED)
+
     async def _load(self):
         """Load the config."""
         data = await self._store.async_load()

homeassistant/components/websocket_api/permissions.py

@@ -10,6 +10,7 @@ from homeassistant.const import (
     EVENT_THEMES_UPDATED)
 from homeassistant.components.persistent_notification import (
     EVENT_PERSISTENT_NOTIFICATIONS_UPDATED)
+from homeassistant.components.lovelace import EVENT_LOVELACE_UPDATED
 from homeassistant.helpers.area_registry import EVENT_AREA_REGISTRY_UPDATED
 from homeassistant.helpers.device_registry import EVENT_DEVICE_REGISTRY_UPDATED
 from homeassistant.helpers.entity_registry import EVENT_ENTITY_REGISTRY_UPDATED
@@ -26,4 +27,5 @@ SUBSCRIBE_WHITELIST = {
     EVENT_AREA_REGISTRY_UPDATED,
     EVENT_DEVICE_REGISTRY_UPDATED,
     EVENT_ENTITY_REGISTRY_UPDATED,
+    EVENT_LOVELACE_UPDATED,
 }