Limit options to title, favicon, apple. Add gui configuration!

custom_components/favicon/config_flow.py

@@ -0,0 +1,55 @@
+import voluptuous as vol
+
+from homeassistant import config_entries
+from homeassistant.core import callback
+
+@config_entries.HANDLERS.register("favicon")
+class ExampleConfigFlow(config_entries.ConfigFlow):
+    async def async_step_user(self, user_input=None):
+        if self._async_current_entries():
+            return self.async_abort(reason="single_instance_allowed")
+        return await self.async_step_config()
+
+    async def async_step_config(self, user_input=None):
+        if user_input is not None:
+            return self.async_create_entry(
+                    title="", data=user_input)
+
+        return self.async_show_form(
+            step_id='config',
+            data_schema=vol.Schema(
+                {
+                    vol.Optional('title'): str,
+                    vol.Optional('favicon'): str,
+                    vol.Optional('apple'): str,
+                }
+            ),
+        )
+
+    @staticmethod
+    @callback
+    def async_get_options_flow(config_entry):
+        return ExampleEditFlow(config_entry)
+
+class ExampleEditFlow(config_entries.OptionsFlow):
+
+    def __init__(self, config_entry):
+        self.config_entry = config_entry
+
+    async def async_step_init(self, user_input=None):
+        if user_input is not None:
+            return self.async_create_entry(title="", data=user_input)
+        return self.async_show_form(
+            step_id='init',
+            data_schema=vol.Schema(
+                {
+                    vol.Optional('title',
+                        default=self.config_entry.options.get("title", "")): str,
+                    vol.Optional('favicon',
+                        default=self.config_entry.options.get("favicon", "")): str,
+                    vol.Optional('apple',
+                        default=self.config_entry.options.get("apple", "")): str,
+                }
+            ),
+        )
+