Presenter, Control: formatTemplateClass() refactoring

Author: dg

src/Application/UI/Control.php

@@ -66,8 +66,14 @@ protected function createTemplate(/*string $class = null*/): Template
 
 	public function formatTemplateClass(): ?string
 	{
-		$class = preg_replace('#Presenter$|Control$#', 'Template', static::class);
-		if ($class === static::class || !class_exists($class)) {
+		return $this->checkTemplateClass(preg_replace('#Control$#', '', static::class) . 'Template');
+	}
+
+
+	/** @internal */
+	protected function checkTemplateClass(string $class): ?string
+	{
+		if (!class_exists($class)) {
 			return null;
 		} elseif (!is_a($class, Template::class, true)) {
 			trigger_error(sprintf(

src/Application/UI/Presenter.php

@@ -567,11 +567,9 @@ protected function createTemplate(/*string $class = null*/): Template
 
 	public function formatTemplateClass(): ?string
 	{
-		$class = preg_replace('#Presenter$#', ucfirst((string) $this->action) . 'Template', static::class);
-		if (class_exists($class) && is_a($class, Template::class, true)) {
-			return $class;
-		}
-		return parent::formatTemplateClass();
+		$base = preg_replace('#Presenter$#', '', static::class);
+		return $this->checkTemplateClass($base . ucfirst((string) $this->action) . 'Template')
+			?? $this->checkTemplateClass($base . 'Template');
 	}
 
 

tests/UI/Presenter.formatTemplateClass.phpt

@@ -59,7 +59,7 @@ test('with class', function () {
 	Assert::error(function () {
 		$presenter = new BPresenter;
 		Assert::null($presenter->formatTemplateClass());
-	}, E_USER_NOTICE, '%a% BTemplate was found but does not implement%a%');
+	}, [E_USER_NOTICE, E_USER_NOTICE]);
 });