events: added default values & removed magic

composer.json

@@ -19,7 +19,7 @@
 		"nette/component-model": "^3.0",
 		"nette/http": "^3.0.2",
 		"nette/routing": "~3.0.0",
-		"nette/utils": "^3.2"
+		"nette/utils": "^3.2.1"
 	},
 	"suggest": {
 		"nette/forms": "Allows to use Nette\\Application\\UI\\Form",

src/Application/Application.php

@@ -11,6 +11,7 @@
 
 use Nette;
 use Nette\Routing\Router;
+use Nette\Utils\Arrays;
 
 
 /**
@@ -30,22 +31,22 @@ class Application
 	public $errorPresenter;
 
 	/** @var callable[]&(callable(Application $sender): void)[]; Occurs before the application loads presenter */
-	public $onStartup;
+	public $onStartup = [];
 
 	/** @var callable[]&(callable(Application $sender, \Throwable $e = null): void)[]; Occurs before the application shuts down */
-	public $onShutdown;
+	public $onShutdown = [];
 
 	/** @var callable[]&(callable(Application $sender, Request $request): void)[]; Occurs when a new request is received */
-	public $onRequest;
+	public $onRequest = [];
 
 	/** @var callable[]&(callable(Application $sender, IPresenter $presenter): void)[]; Occurs when a presenter is created */
-	public $onPresenter;
+	public $onPresenter = [];
 
 	/** @var callable[]&(callable(Application $sender, Response $response): void)[]; Occurs when a new response is ready for dispatch */
-	public $onResponse;
+	public $onResponse = [];
 
 	/** @var callable[]&(callable(Application $sender, \Throwable $e): void)[]; Occurs when an unhandled exception occurs in the application */
-	public $onError;
+	public $onError = [];
 
 	/** @var Request[] */
 	private $requests = [];
@@ -85,23 +86,23 @@ public function __construct(
 	public function run(): void
 	{
 		try {
-			$this->onStartup($this);
+			Arrays::invoke($this->onStartup, $this);
 			$this->processRequest($this->createInitialRequest());
-			$this->onShutdown($this);
+			Arrays::invoke($this->onShutdown, $this);
 
 		} catch (\Throwable $e) {
-			$this->onError($this, $e);
+			Arrays::invoke($this->onError, $this, $e);
 			if ($this->catchExceptions && $this->errorPresenter) {
 				try {
 					$this->processException($e);
-					$this->onShutdown($this, $e);
+					Arrays::invoke($this->onShutdown, $this, $e);
 					return;
 
 				} catch (\Throwable $e) {
-					$this->onError($this, $e);
+					Arrays::invoke($this->onError, $this, $e);
 				}
 			}
-			$this->onShutdown($this, $e);
+			Arrays::invoke($this->onShutdown, $this, $e);
 			throw $e;
 		}
 	}
@@ -140,7 +141,7 @@ public function processRequest(Request $request): void
 		}
 
 		$this->requests[] = $request;
-		$this->onRequest($this, $request);
+		Arrays::invoke($this->onRequest, $this, $request);
 
 		if (
 			!$request->isMethod($request::FORWARD)
@@ -156,15 +157,15 @@ public function processRequest(Request $request): void
 				? $e
 				: new BadRequestException($e->getMessage(), 0, $e);
 		}
-		$this->onPresenter($this, $this->presenter);
+		Arrays::invoke($this->onPresenter, $this, $this->presenter);
 		$response = $this->presenter->run(clone $request);
 
 		if ($response instanceof Responses\ForwardResponse) {
 			$request = $response->getRequest();
 			goto process;
 		}
 
-		$this->onResponse($this, $response);
+		Arrays::invoke($this->onResponse, $this, $response);
 		$response->send($this->httpRequest, $this->httpResponse);
 	}
 

src/Application/UI/Component.php

@@ -27,7 +27,7 @@ abstract class Component extends Nette\ComponentModel\Container implements Signa
 	use Nette\ComponentModel\ArrayAccess;
 
 	/** @var callable[]&(callable(Component $sender): void)[]; Occurs when component is attached to presenter */
-	public $onAnchor;
+	public $onAnchor = [];
 
 	/** @var array */
 	protected $params = [];
@@ -78,7 +78,7 @@ protected function validateParent(Nette\ComponentModel\IContainer $parent): void
 		parent::validateParent($parent);
 		$this->monitor(Presenter::class, function (Presenter $presenter): void {
 			$this->loadState($presenter->popGlobalParameters($this->getUniqueId()));
-			$this->onAnchor($this);
+			Nette\Utils\Arrays::invoke($this->onAnchor, $this);
 		});
 	}
 

src/Application/UI/Form.php

@@ -18,7 +18,7 @@
 class Form extends Nette\Forms\Form implements SignalReceiver
 {
 	/** @var callable[]&(callable(Form $sender): void)[]; Occurs when form is attached to presenter */
-	public $onAnchor;
+	public $onAnchor = [];
 
 	/** @var bool */
 	private $sameSiteProtection = true;
@@ -57,7 +57,7 @@ protected function validateParent(Nette\ComponentModel\IContainer $parent): void
 				}
 			}
 
-			$this->onAnchor($this);
+			Nette\Utils\Arrays::invoke($this->onAnchor, $this);
 		});
 	}
 

src/Application/UI/Presenter.php

@@ -14,6 +14,7 @@
 use Nette\Application\Helpers;
 use Nette\Application\Responses;
 use Nette\Http;
+use Nette\Utils\Arrays;
 
 
 /**
@@ -49,13 +50,13 @@ abstract class Presenter extends Control implements Application\IPresenter
 	public $invalidLinkMode;
 
 	/** @var callable[]&(callable(Presenter $sender): void)[]; Occurs when the presenter is starting */
-	public $onStartup;
+	public $onStartup = [];
 
 	/** @var callable[]&(callable(Presenter $sender): void)[]; Occurs when the presenter is rendering after beforeRender */
-	public $onRender;
+	public $onRender = [];
 
 	/** @var callable[]&(callable(Presenter $sender, Response $response): void)[]; Occurs when the presenter is shutting down */
-	public $onShutdown;
+	public $onShutdown = [];
 
 	/** @var bool  automatically call canonicalize() */
 	public $autoCanonicalize = true;
@@ -203,7 +204,7 @@ public function run(Application\Request $request): Application\Response
 
 			$this->initGlobalParameters();
 			$this->checkRequirements(static::getReflection());
-			$this->onStartup($this);
+			Arrays::invoke($this->onStartup, $this);
 			$this->startup();
 			if (!$this->startupCheck) {
 				$class = static::getReflection()->getMethod('startup')->getDeclaringClass()->getName();
@@ -230,7 +231,7 @@ public function run(Application\Request $request): Application\Response
 
 			// RENDERING VIEW
 			$this->beforeRender();
-			$this->onRender($this);
+			Arrays::invoke($this->onRender, $this);
 			// calls $this->render<View>()
 			$this->tryCall(static::formatRenderMethod($this->view), $this->params);
 			$this->afterRender();
@@ -268,7 +269,7 @@ public function run(Application\Request $request): Application\Response
 			$this->response = new Responses\VoidResponse;
 		}
 
-		$this->onShutdown($this, $this->response);
+		Arrays::invoke($this->onShutdown, $this, $this->response);
 		$this->shutdown($this->response);
 
 		return $this->response;

src/Bridges/ApplicationLatte/TemplateFactory.php

@@ -22,7 +22,7 @@ class TemplateFactory implements UI\TemplateFactory
 	use Nette\SmartObject;
 
 	/** @var callable[]&(callable(Template $template): void)[]; Occurs when a new template is created */
-	public $onCreate;
+	public $onCreate = [];
 
 	/** @var LatteFactory */
 	private $latteFactory;
@@ -140,7 +140,7 @@ public function createTemplate(UI\Control $control = null, string $class = null)
 		}
 		$latte->addProvider('cacheStorage', $this->cacheStorage);
 
-		$this->onCreate($template);
+		Nette\Utils\Arrays::invoke($this->onCreate, $template);
 
 		return $template;
 	}