TYPO3 v15 dev-main snapshot ()

2026-08-10 22:31:00 +02:00
commit f9941541b7
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+<?php
+
+declare(strict_types=1);
+
+/*
+ * 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\Backend\Form\NodeExpansion;
+
+use TYPO3\CMS\Backend\Form\AbstractNode;
+use TYPO3\CMS\Backend\Form\NodeFactory;
+use TYPO3\CMS\Core\Service\DependencyOrderingService;
+
+/**
+ * Field information are additional HTML on a single node level that are typically
+ * shown between the label and the main element. They are registered in ['config']['fieldInformation']
+ * TCA section and each element may merge that with default registered information.
+ *
+ * Field information must not add additional functionality to the element. They are only
+ * allowed to add "informational" stuff like links, div and spans and similar.
+ */
+class FieldInformation extends AbstractNode
+{
+    public function __construct(
+        private readonly NodeFactory $nodeFactory,
+        private readonly DependencyOrderingService $dependencyOrderingService,
+    ) {}
+
+    /**
+     * Order the list of field information to be rendered with the ordering service,
+     * then call each information element through the node factory and merge their
+     * results.
+     *
+     * @return array Result array
+     */
+    public function render(): array
+    {
+        $result = $this->initializeResultArray();
+        if (!isset($this->data['renderData']['fieldInformation'])) {
+            return $result;
+        }
+
+        $fieldInformation = $this->data['renderData']['fieldInformation'];
+        $orderedFieldInformation = $this->dependencyOrderingService->orderByDependencies($fieldInformation);
+
+        foreach ($orderedFieldInformation as $anOrderedFieldInformation => $orderedFieldInformationConfiguration) {
+            if (isset($orderedFieldInformationConfiguration['disabled']) && $orderedFieldInformationConfiguration['disabled']
+                || !isset($fieldInformation[$anOrderedFieldInformation]['renderType'])
+            ) {
+                // Don't consider this control if disabled.
+                // Also ignore if renderType is not given.
+                // Missing renderType may happen if an element registers a default field control
+                // as disabled, and TCA enabled that. If then additionally for instance the
+                // element renderType is changed to an element that doesn't register the control
+                // by default anymore, this would then fatal if we don't continue here.
+                // @todo: the above scenario indicates a small configuration flaw, maybe log an error somewhere?
+                continue;
+            }
+
+            $options = $this->data;
+            $options['renderType'] = $fieldInformation[$anOrderedFieldInformation]['renderType'];
+            $options['renderData']['fieldInformationOptions'] = $orderedFieldInformationConfiguration['options'] ?? [];
+            $informationResult = $this->nodeFactory->create($options)->render();
+
+            $allowedTags = '<a><br><br/><div><em><i><p><strong><span><code>';
+            if (strip_tags($informationResult['html'], $allowedTags) !== $informationResult['html']) {
+                throw new \RuntimeException(
+                    'The field information API supports only a limited number of HTML tags within the result'
+                    . ' HTML of children. Allowed tags are: "' . $allowedTags . '" Child'
+                    . ' ' . $options['renderType'] . ' violated this rule. Either remove offending tags or'
+                    . ' switch to a different API like "fieldWizard" or "fieldControl".',
+                    1485084419
+                );
+            }
+
+            $result = $this->mergeChildReturnIntoExistingResult($result, $informationResult);
+        }
+        return $result;
+    }
+}