[bug] Viewhelper for getting image dimension

Classes/ViewHelpers/Get/ImageDimensionViewHelper.php

@@ -0,0 +1,107 @@
+<?php
+namespace T3kit\T3kitExtensionTools\ViewHelpers\Get;
+
+/***************************************************************
+ *  Copyright notice
+ *
+ *  (c) 2017 Web Essentials <production@web-essentials.asia>
+ *
+ *  All rights reserved
+ *
+ *  This script is part of the TYPO3 project. The TYPO3 project is
+ *  free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation; either version 3 of the License, or
+ *  (at your option) any later version.
+ *
+ *  The GNU General Public License can be found at
+ *  http://www.gnu.org/copyleft/gpl.html.
+ *
+ *  This script is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  This copyright notice MUST APPEAR in all copies of the script!
+ ***************************************************************/
+
+use TYPO3\CMS\Core\Resource\FileReference;
+use TYPO3\CMS\Core\Resource\FileInterface;
+use TYPO3\CMS\Core\Resource\Exception\ResourceDoesNotExistException;
+use TYPO3\CMS\Core\Utility\GeneralUtility;
+use TYPO3\CMS\Extbase\Domain\Model\AbstractFileFolder;
+use TYPO3\CMS\Extbase\Object\ObjectManager;
+use TYPO3\CMS\Extbase\Service\ImageService;
+use TYPO3\CMS\Fluid\Core\ViewHelper\AbstractViewHelper;
+use TYPO3\CMS\Fluid\Core\ViewHelper\Exception;
+
+/**
+ * Get exact resource width or height
+ */
+class ImageDimensionViewHelper extends AbstractViewHelper {
+
+	/**
+	 * @param string $src
+	 * @param integer $width
+	 * @param integer $height
+	 * @param integer $minWidth
+	 * @param integer $minHeight
+	 * @param integer $maxWidth
+	 * @param integer $maxHeight
+	 * @param boolean $treatIdAsReference
+	 * @param FileInterface|AbstractFileFolder $image
+	 * @param string|boolean $crop
+	 * @param string $dimensionType
+	 *
+	 * @return string|NULL
+	 * @throws \TYPO3\CMS\Fluid\Core\ViewHelper\Exception
+	 */
+	public function render($src = NULL, $width = NULL, $height = NULL, $minWidth = NULL, $minHeight = NULL, $maxWidth = NULL, $maxHeight = NULL, $treatIdAsReference = FALSE, $image = NULL, $crop = NULL, $dimensionType = 'width') {
+		if (is_null($src) && is_null($image) || !is_null($src) && !is_null($image)) {
+			throw new Exception('You must either specify a string src or a File object.', 1485241341);
+		}
+
+		$dimension = NULL;
+
+		try {
+			$image = self::getImageService()->getImage($src, $image, $treatIdAsReference);
+			if ($crop === NULL) {
+				$crop = $image instanceof FileReference ? $image->getProperty('crop') : NULL;
+			}
+			$processingInstructions = [
+				'width' => $width,
+				'height' => $height,
+				'minWidth' => $minWidth,
+				'minHeight' => $minHeight,
+				'maxWidth' => $maxWidth,
+				'maxHeight' => $maxHeight,
+				'crop' => $crop,
+			];
+			$processedImage = self::getImageService()->applyProcessingInstructions($image, $processingInstructions);
+
+			$dimension = $processedImage->getProperty($dimensionType);
+
+		} catch (ResourceDoesNotExistException $e) {
+			// thrown if file does not exist
+		} catch (\UnexpectedValueException $e) {
+			// thrown if a file has been replaced with a folder
+		} catch (\RuntimeException $e) {
+			// RuntimeException thrown if a file is outside of a storage
+		} catch (\InvalidArgumentException $e) {
+			// thrown if file storage does not exist
+		}
+
+		return $dimension;
+	}
+
+	/**
+	 * Return an instance of ImageService using object manager
+	 *
+	 * @return ImageService
+	 */
+	protected static function getImageService() {
+		/** @var ObjectManager $objectManager */
+		$objectManager = GeneralUtility::makeInstance(ObjectManager::class);
+		return $objectManager->get(ImageService::class);
+	}
+}