Component: only UI components can be added to presenter/component (BC break) WIP

Author: dg

src/Application/UI/Component.php

@@ -66,14 +66,15 @@ public function getUniqueId(): string
 	}
 
 
-	protected function createComponent(string $name): ?Nette\ComponentModel\IComponent
-	{
-		$res = parent::createComponent($name);
-		if ($res && !$res instanceof SignalReceiver && !$res instanceof StatePersistent) {
-			$type = $res::class;
-			trigger_error("It seems that component '$name' of type $type is not intended to be used in the Presenter.", E_USER_NOTICE);
+	public function addComponent(
+		Nette\ComponentModel\IComponent $component,
+		?string $name,
+		string $insertBefore = null,
+	): static {
+		if (!$component instanceof SignalReceiver && !$component instanceof StatePersistent) {
+			throw new Nette\InvalidStateException("Component '$name' of type " . gettype($component) . ' is not intended to be used in the Presenter.');
 		}
-		return $res;
+		return parent::addComponent($component, $name, $insertBefore = null);
 	}