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typo3/sysext/impexp/Classes/ContextMenu/ItemProvider.php

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+<?php
+declare(strict_types = 1);
+namespace TYPO3\CMS\Impexp\ContextMenu;
+
+/*
+ * 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!
+ */
+
+use TYPO3\CMS\Backend\ContextMenu\ItemProviders\AbstractProvider;
+
+/**
+ * Context menu item provider adding export and import items
+ * @internal this is a internal TYPO3 hook implementation and solely used for EXT:impexp and not part of TYPO3's Core API.
+ */
+class ItemProvider extends AbstractProvider
+{
+    /**
+     * @var array
+     */
+    protected $itemsConfiguration = [
+        'exportT3d' => [
+            'type' => 'item',
+            'label' => 'LLL:EXT:impexp/Resources/Private/Language/locallang.xlf:export',
+            'iconIdentifier' => 'actions-document-export-t3d',
+            'callbackAction' => 'exportT3d'
+        ],
+        'importT3d' => [
+            'type' => 'item',
+            'label' => 'LLL:EXT:impexp/Resources/Private/Language/locallang.xlf:import',
+            'iconIdentifier' => 'actions-document-import-t3d',
+            'callbackAction' => 'importT3d',
+        ]
+    ];
+
+    /**
+     * Export item is added for all database records except files
+     *
+     * @return bool
+     */
+    public function canHandle(): bool
+    {
+        return !in_array($this->table, ['sys_file', 'sys_filemounts', 'sys_file_storage'], true)
+            && strpos($this->table, '-drag') === false;
+    }
+
+    /**
+     * This needs to be lower than priority of the RecordProvider
+     *
+     * @return int
+     */
+    public function getPriority(): int
+    {
+        return 50;
+    }
+
+    /**
+     * Adds import/export items to the "submenu" if available
+     *
+     * @param array $items
+     * @return array
+     */
+    public function addItems(array $items): array
+    {
+        $this->initDisabledItems();
+        $localItems = $this->prepareItems($this->itemsConfiguration);
+        if (isset($items['more']['childItems'])) {
+            $items['more']['childItems'] = $items['more']['childItems'] + $localItems;
+        } else {
+            $items += $localItems;
+        }
+        return $items;
+    }
+
+    /**
+     * @param string $itemName
+     * @param string $type
+     * @return bool
+     */
+    protected function canRender(string $itemName, string $type): bool
+    {
+        if (in_array($itemName, $this->disabledItems, true)) {
+            return false;
+        }
+        $canRender = false;
+        switch ($itemName) {
+            case 'exportT3d':
+                $canRender = true;
+                break;
+            case 'importT3d':
+                $canRender = $this->table === 'pages' && $this->isImportEnabled();
+                break;
+        }
+        return $canRender;
+    }
+
+    /**
+     * Registers custom JS module with item onclick behaviour
+     *
+     * @param string $itemName
+     * @return array
+     */
+    protected function getAdditionalAttributes(string $itemName): array
+    {
+        return ['data-callback-module' => 'TYPO3/CMS/Impexp/ContextMenuActions'];
+    }
+
+    /**
+     * Check if import functionality is available for current user
+     */
+    protected function isImportEnabled(): bool
+    {
+        return $this->backendUser->isAdmin()
+            || !$this->backendUser->isAdmin() && (bool)($this->backendUser->getTSConfig()['options.']['impexp.']['enableImportForNonAdminUser'] ?? false);
+    }
+}