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typo3/sysext/backend/Classes/View/PageLayoutViewDrawItemHookInterface.php

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+<?php
+namespace TYPO3\CMS\Backend\View;
+
+/*
+ * 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!
+ */
+
+/**
+ * Interface for classes which hook into PageLayoutView and do additional
+ * tt_content_drawItem processing.
+ */
+interface PageLayoutViewDrawItemHookInterface
+{
+    /**
+     * Preprocesses the preview rendering of a content element.
+     *
+     * @param \TYPO3\CMS\Backend\View\PageLayoutView $parentObject Calling parent object
+     * @param bool $drawItem Whether to draw the item using the default functionalities
+     * @param string $headerContent Header content
+     * @param string $itemContent Item content
+     * @param array $row Record row of tt_content
+     */
+    public function preProcess(\TYPO3\CMS\Backend\View\PageLayoutView &$parentObject, &$drawItem, &$headerContent, &$itemContent, array &$row);
+}