FileStorageExtractionAdditionalFieldProvider.php

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<?php
namespace TYPO3\CMS\Scheduler\Task;

use TYPO3\CMS\Core\Messaging\FlashMessage;
use TYPO3\CMS\Core\Resource\Index\ExtractorInterface;
use TYPO3\CMS\Core\Resource\Index\ExtractorRegistry;
use TYPO3\CMS\Core\Resource\ResourceFactory;
use TYPO3\CMS\Core\Utility\GeneralUtility;
use TYPO3\CMS\Core\Utility\MathUtility;
use TYPO3\CMS\Scheduler\AdditionalFieldProviderInterface;
use TYPO3\CMS\Scheduler\Controller\SchedulerModuleController;

class FileStorageExtractionAdditionalFieldProvider implements AdditionalFieldProviderInterface {

    public function getAdditionalFields(array &$taskInfo, $task, SchedulerModuleController $parentObject) {
        if ($task !== NULL && !$task instanceof FileStorageExtractionTask) {
            throw new \InvalidArgumentException('Task not of type FileStorageExtractionTask', 1384275695);
        }
        $additionalFields['scheduler_fileStorageIndexing_storage'] = $this->getAllStoragesField($task);
        $additionalFields['scheduler_fileStorageIndexing_fileCount'] = $this->getFileCountField($task);
        $additionalFields['scheduler_fileStorageIndexing_registeredExtractors'] = $this->getRegisteredExtractorsField($task);
        return $additionalFields;
    }

    protected function getAllStoragesField(FileStorageExtractionTask $task = NULL) {
        $storages = GeneralUtility::makeInstance('TYPO3\CMS\Core\Resource\StorageRepository')->findAll();
        $options = array();
        foreach ($storages as $storage) {
            if ($task !== NULL && $task->storageUid === $storage->getUid()) {
                $options[] = '<option value="' . $storage->getUid() . '" selected="selected">' . $storage->getName() . '</option>';
            } else {
                $options[] = '<option value="' . $storage->getUid() . '">' . $storage->getName() . '</option>';
            }
        }

        $fieldName = 'tx_scheduler[scheduler_fileStorageIndexing_storage]';
        $fieldId = 'scheduler_fileStorageIndexing_storage';
        $fieldHtml = '<select name="' . $fieldName . '" id="' . $fieldId . '">' . implode("\n", $options) . '</select>';

        $fieldConfiguration = array(
            'code' => $fieldHtml,
            'label' => 'LLL:EXT:scheduler/mod1/locallang.xlf:label.fileStorageIndexing.storage',
            'cshKey' => '_MOD_system_txschedulerM1',
            'cshLabel' => $fieldId
        );
        return $fieldConfiguration;
    }

    protected function getFileCountField(FileStorageExtractionTask $task = NULL) {
        $fieldName = 'tx_scheduler[scheduler_fileStorageIndexing_fileCount]';
        $fieldId = 'scheduler_fileStorageIndexing_fileCount';
        $fieldValue = $task !== NULL ? (int)$task->maxFileCount : 100;
        $fieldHtml = '<input type="text" name="' . $fieldName . '" id="' . $fieldId . '" value="' . htmlspecialchars($fieldValue) . '" />';

        $fieldConfiguration = array(
            'code' => $fieldHtml,
            'label' => 'LLL:EXT:scheduler/mod1/locallang.xlf:label.fileStorageExtraction.fileCount',
            'cshKey' => '_MOD_system_txschedulerM1',
            'cshLabel' => $fieldId
        );
        return $fieldConfiguration;
    }

    protected function getRegisteredExtractorsField(FileStorageExtractionTask $task = NULL) {
        $extractors = ExtractorRegistry::getInstance()->getExtractors();

        if (empty($extractors)) {
            $labelKey = 'LLL:EXT:scheduler/mod1/locallang.xlf:label.fileStorageExtraction.registeredExtractors.without_extractors';
            $flashMessage = GeneralUtility::makeInstance(
                'TYPO3\\CMS\\Core\\Messaging\\FlashMessage',
                $this->getLanguageService()->sL($labelKey),
                '',
                FlashMessage::WARNING
            );
            $content = $flashMessage->render();
        } else {
            // Assemble the extractor bullet list first.
            $labelKey = 'LLL:EXT:scheduler/mod1/locallang.xlf:label.fileStorageExtraction.registeredExtractors.extractor';
            $bullets = array();
            foreach ($extractors as $extractor) {
                $bullets[] = sprintf(
                    '<li title="%s">%s</li>',
                    get_class($extractor),
                    sprintf($this->getLanguageService()->sL($labelKey), $this->formatExtractorClassName($extractor), $extractor->getPriority())
                );
            }

            // Finalize content assembling.
            $labelKey = 'LLL:EXT:scheduler/mod1/locallang.xlf:label.fileStorageExtraction.registeredExtractors.with_extractors';
            $flashMessage = GeneralUtility::makeInstance(
                'TYPO3\\CMS\\Core\\Messaging\\FlashMessage',
                '<ul>' . implode(LF, $bullets) . '</ul>',
                $this->getLanguageService()->sL($labelKey),
                FlashMessage::INFO
            );
            $content = $flashMessage->render();
        }

        $fieldConfiguration = array(
            'code' => $content,
            'label' => 'LLL:EXT:scheduler/mod1/locallang.xlf:label.fileStorageExtraction.registeredExtractors',
            'cshKey' => '_MOD_system_txschedulerM1',
            'cshLabel' => 'scheduler_fileStorageIndexing_registeredExtractors'
        );
        return $fieldConfiguration;
    }

    public function validateAdditionalFields(array &$submittedData, SchedulerModuleController $parentObject) {
        if (!MathUtility::canBeInterpretedAsInteger($submittedData['scheduler_fileStorageIndexing_storage']) ||
            !MathUtility::canBeInterpretedAsInteger($submittedData['scheduler_fileStorageIndexing_fileCount'])) {
            return FALSE;
        } elseif (ResourceFactory::getInstance()->getStorageObject($submittedData['scheduler_fileStorageIndexing_storage']) === NULL) {
            return FALSE;
        } elseif (!MathUtility::isIntegerInRange($submittedData['scheduler_fileStorageIndexing_fileCount'], 1, 9999)) {
            return FALSE;
        }
        return TRUE;
    }

    public function saveAdditionalFields(array $submittedData, \TYPO3\CMS\Scheduler\Task\AbstractTask $task) {
        if ($task !== NULL && !$task instanceof FileStorageExtractionTask) {
            throw new \InvalidArgumentException('Task not of type FileStorageExtractionTask', 1384275698);
        }
        $task->storageUid = (int)$submittedData['scheduler_fileStorageIndexing_storage'];
        $task->maxFileCount = (int)$submittedData['scheduler_fileStorageIndexing_fileCount'];
    }

    protected function formatExtractorClassName(ExtractorInterface $extractor) {
        $extractorParts = explode('\\', get_class($extractor));
        return array_pop($extractorParts);
    }

    protected function getLanguageService() {
        return $GLOBALS['LANG'];
    }
}