TYPO3 v15 dev-main snapshot ()

2026-08-10 22:31:09 +02:00
commit af8cc155b5
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+<?php
+
+/*
+ * This file is part of the TYPO3 CMS project.
+ *
+ * It is free software; you can redistribute it and/or modify it under
+ * the terms of the GNU General Public License, either version 2
+ * of the License, or any later version.
+ *
+ * For the full copyright and license information, please read the
+ * LICENSE.txt file that was distributed with this source code.
+ *
+ * The TYPO3 project - inspiring people to share!
+ */
+
+namespace TYPO3\CMS\Core\Resource\Rendering;
+
+use TYPO3\CMS\Core\Resource\FileInterface;
+use TYPO3\CMS\Core\SingletonInterface;
+
+/**
+ * Registry for file renderers, which are registered as tagged services
+ * via the #[AsFileRenderer] attribute or the 'fal.file_renderer' service
+ * tag. Renderers are ordered by their tag priority, a renderer with a
+ * higher priority is asked first whether it can render a file.
+ *
+ * @internal not part of TYPO3's Core API. Register file renderers via the #[AsFileRenderer] attribute instead.
+ */
+class RendererRegistry implements SingletonInterface
+{
+    /**
+     * Instance cache for renderer classes
+     *
+     * @var FileRendererInterface[]|null
+     */
+    protected ?array $instances = null;
+
+    /**
+     * @param iterable<FileRendererInterface> $renderers
+     */
+    public function __construct(protected readonly iterable $renderers = []) {}
+
+    /**
+     * @deprecated since TYPO3 v15.0, this method is a no-op and will be removed in TYPO3 v16.0. Register the renderer as a tagged service using the #[AsFileRenderer] attribute instead.
+     */
+    public function registerRendererClass(string $className): void
+    {
+        trigger_error(
+            'RendererRegistry->registerRendererClass() is a no-op since TYPO3 v15.0 and will be removed in TYPO3 v16.0.'
+            . ' Register "' . $className . '" as a tagged service using the #[AsFileRenderer] attribute instead.',
+            E_USER_DEPRECATED
+        );
+    }
+
+    /**
+     * Get all registered renderer instances
+     *
+     * @return FileRendererInterface[]
+     */
+    protected function getRendererInstances(): array
+    {
+        if ($this->instances === null) {
+            $this->instances = [];
+            foreach ($this->renderers as $renderer) {
+                $this->instances[] = $renderer;
+            }
+        }
+        return $this->instances;
+    }
+
+    /**
+     * Get matching renderer with highest priority
+     */
+    public function getRenderer(FileInterface $file): ?FileRendererInterface
+    {
+        foreach ($this->getRendererInstances() as $fileRenderer) {
+            if ($fileRenderer->canRender($file)) {
+                return $fileRenderer;
+            }
+        }
+        return null;
+    }
+}