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<?php |
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/** |
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* Custom Backend Preview for Elements like Content Objects. |
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*/ |
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declare(strict_types = 1); |
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namespace HDNET\Autoloader\Hooks; |
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use HDNET\Autoloader\Annotation\Hook; |
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use HDNET\Autoloader\Utility\ExtendedUtility; |
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use HDNET\Autoloader\Utility\ModelUtility; |
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use TYPO3\CMS\Backend\View\PageLayoutView; |
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use TYPO3\CMS\Backend\View\PageLayoutViewDrawItemHookInterface; |
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use TYPO3\CMS\Core\Cache\CacheManager; |
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use TYPO3\CMS\Core\Cache\Frontend\FrontendInterface; |
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use TYPO3\CMS\Core\Utility\GeneralUtility; |
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/** |
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* Class ElementBackendPreview. |
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* |
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* @see \TYPO3\CMS\Backend\View\PageLayoutView::tt_content_drawItem |
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* @Hook("TYPO3_CONF_VARS|SC_OPTIONS|cms/layout/class.tx_cms_layout.php|tt_content_drawItem") |
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*/ |
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class ElementBackendPreview implements PageLayoutViewDrawItemHookInterface |
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{ |
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/** |
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* Preprocesses the preview rendering of a content element. |
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* |
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* @param PageLayoutView $parentObject Calling parent object |
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* @param bool $drawItem Whether to draw the item using the default functionalities |
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* @param string $headerContent Header content |
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* @param string $itemContent Item content |
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* @param array $row Record row of tt_content |
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*/ |
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public function preProcess(PageLayoutView &$parentObject, &$drawItem, &$headerContent, &$itemContent, array &$row): void |
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{ |
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if (!$this->isAutoloaderContenobject($row)) { |
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return; |
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} |
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if (!$this->hasBackendPreview($row)) { |
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return; |
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} |
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$itemContent = $this->getBackendPreview($row); |
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$drawItem = false; |
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} |
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/** |
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* Render the Backend Preview Template and return the HTML. |
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* |
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* @param array $row |
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* |
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* @return string |
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*/ |
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public function getBackendPreview($row) |
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{ |
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if (!$this->hasBackendPreview($row)) { |
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return ''; |
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} |
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// Workarround for wrong FrontendUserGroup Restriction in TYPO3 8.x |
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if (TYPO3_MODE === 'BE' && !\is_object($GLOBALS['TSFE'])) { |
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$GLOBALS['TSFE'] = new \stdClass(); |
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$GLOBALS['TSFE']->gr_list = ''; |
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} |
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$cacheIdentifier = 'tt-content-preview-' . $row['uid'] . '-' . $row['tstamp']; |
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/** @var FrontendInterface $cache */ |
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$cache = GeneralUtility::makeInstance(CacheManager::class) |
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->getCache('pagesection') |
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; |
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if ($cache->has($cacheIdentifier)) { |
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return $cache->get($cacheIdentifier); |
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} |
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$ctype = $row['CType']; |
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/** @var array $config */ |
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$config = $GLOBALS['TYPO3_CONF_VARS']['AUTOLOADER']['ContentObject'][$ctype]; |
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$model = ModelUtility::getModel($config['modelClass'], $row); |
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$view = ExtendedUtility::createExtensionStandaloneView($config['extensionKey'], $config['backendTemplatePath']); |
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$view->assignMultiple([ |
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'data' => $row, |
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'object' => $model, |
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]); |
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$output = $view->render(); |
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$cache->set($cacheIdentifier, $output); |
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return $output; |
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} |
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/** |
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* Check if the ContentObject has a Backend Preview Template. |
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* |
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* @param array $row |
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* |
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* @return bool |
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*/ |
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public function hasBackendPreview($row) |
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{ |
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if (!$this->isAutoloaderContenobject($row)) { |
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return false; |
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} |
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$ctype = $row['CType']; |
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/** @var array $config */ |
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$config = $GLOBALS['TYPO3_CONF_VARS']['AUTOLOADER']['ContentObject'][$ctype]; |
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$beTemplatePath = GeneralUtility::getFileAbsFileName($config['backendTemplatePath']); |
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return is_file($beTemplatePath); |
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} |
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/** |
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* Check if the the Element is registered by the ContenObject-Autoloader. |
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* |
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* @return bool |
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*/ |
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public function isAutoloaderContenobject(array $row) |
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{ |
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$ctype = $row['CType']; |
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return (bool)$GLOBALS['TYPO3_CONF_VARS']['AUTOLOADER']['ContentObject'][$ctype]; |
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} |
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} |
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lochmueller /
autoloader
