ImageContentObject.php

Go to the documentation of this file.

<?php
 
/*
 * 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!
 */
 
namespace ‪TYPO3\CMS\Frontend\ContentObject;
 
use ‪TYPO3\CMS\Core\Core\Environment;
use ‪TYPO3\CMS\Core\Page\AssetCollector;
use ‪TYPO3\CMS\Core\Service\MarkerBasedTemplateService;
use ‪TYPO3\CMS\Core\TypoScript\TypoScriptService;
use ‪TYPO3\CMS\Core\Utility\GeneralUtility;
 
class ‪ImageContentObject extends ‪AbstractContentObject
{
    public function ‪render($conf = [])
    {
        if (!empty($conf['if.']) && !$this->cObj->checkIf($conf['if.'])) {
            return '';
        }
 
        $theValue = $this->‪cImage($conf['file'] ?? '', $conf);
        if (isset($conf['stdWrap.'])) {
            $theValue = $this->cObj->stdWrap($theValue, $conf['stdWrap.']);
        }
        return $theValue;
    }
 
    protected function ‪cImage($file, $conf)
    {
        $tsfe = $this->‪getTypoScriptFrontendController();
        $info = $this->cObj->getImgResource($file, $conf['file.'] ?? []);
        if (!is_array($info)) {
            return '';
        }
        // $info['originalFile'] will be set, when the file is processed by FAL.
        // In that case the URL is final and we must not add a prefix
        if (!isset($info['originalFile']) && is_file(‪Environment::getPublicPath() . '/' . ($info['3'] ?? ''))) {
            $source = $tsfe->absRefPrefix . str_replace('%2F', '/', rawurlencode($info['3'] ?? ''));
        } else {
            $source = $info[3] ?? '';
        }
        // Remove file objects for AssetCollector, as it only allows to store scalar values
        $infoOriginalFile = $info['originalFile'] ?? null;
        unset($info['originalFile'], $info['processedFile']);
        GeneralUtility::makeInstance(AssetCollector::class)->addMedia(
            $source,
            $info
        );
 
        $layoutKey = (string)$this->cObj->stdWrapValue('layoutKey', $conf ?? []);
        $imageTagTemplate = $this->‪getImageTagTemplate($layoutKey, $conf);
        $sourceCollection = $this->‪getImageSourceCollection($layoutKey, $conf, $file);
 
        $altParam = $this->‪getAltParam($conf);
        $params = $this->cObj->stdWrapValue('params', $conf ?? []);
        if ($params !== '' && $params[0] !== ' ') {
            $params = ' ' . $params;
        }
 
        $imageTagValues = [
            'width' =>  (int)$info[0],
            'height' => (int)$info[1],
            'src' => htmlspecialchars($source),
            'params' => $params,
            'altParams' => $altParam,
            'border' =>  $this->‪getBorderAttr(' border="' . (int)($conf['border'] ?? 0) . '"'),
            'sourceCollection' => $sourceCollection,
            'selfClosingTagSlash' => !empty($tsfe->xhtmlDoctype) ? ' /' : '',
        ];
 
        $markerTemplateEngine = GeneralUtility::makeInstance(MarkerBasedTemplateService::class);
        $theValue = $markerTemplateEngine->substituteMarkerArray($imageTagTemplate, $imageTagValues, '###|###', true, true);
 
        $linkWrap = (string)$this->cObj->stdWrapValue('linkWrap', $conf ?? []);
        if ($linkWrap !== '') {
            $theValue = $this->‪linkWrap((string)$theValue, $linkWrap);
        } elseif ($conf['imageLinkWrap'] ?? false) {
            $originalFile = !empty($infoOriginalFile) ? $infoOriginalFile : urldecode($info['origFile']);
            $theValue = $this->cObj->imageLinkWrap($theValue, $originalFile, $conf['imageLinkWrap.']);
        }
        $wrap = $this->cObj->stdWrapValue('wrap', $conf ?? []);
        if ((string)$wrap !== '') {
            $theValue = $this->cObj->wrap($theValue, $conf['wrap']);
        }
        return $theValue;
    }
 
    protected function ‪getBorderAttr($borderAttr)
    {
        $tsfe = $this->‪getTypoScriptFrontendController();
        $docType = $tsfe->xhtmlDoctype;
        if (
            $docType !== 'xhtml_strict' && $docType !== 'xhtml_11'
            && ($tsfe->config['config']['doctype'] ?? '') !== 'html5'
            && !($tsfe->config['config']['disableImgBorderAttr'] ?? false)
        ) {
            return $borderAttr;
        }
        return '';
    }
 
    protected function ‪getImageTagTemplate($layoutKey, $conf): string
    {
        if ($layoutKey && isset($conf['layout.']) && isset($conf['layout.'][$layoutKey . '.'])) {
            return $this->cObj->stdWrapValue('element', $conf['layout.'][$layoutKey . '.']);
        }
        return '<img src="###SRC###" width="###WIDTH###" height="###HEIGHT###" ###PARAMS### ###ALTPARAMS### ###BORDER######SELFCLOSINGTAGSLASH###>';
    }
 
    protected function ‪getImageSourceCollection($layoutKey, $conf, $file)
    {
        $sourceCollection = '';
        if ($layoutKey
            && isset($conf['sourceCollection.']) && $conf['sourceCollection.']
            && (
                isset($conf['layout.'][$layoutKey . '.']['source']) && $conf['layout.'][$layoutKey . '.']['source']
                || isset($conf['layout.'][$layoutKey . '.']['source.']) && $conf['layout.'][$layoutKey . '.']['source.']
            )
        ) {
            // find active sourceCollection
            $activeSourceCollections = [];
            foreach ($conf['sourceCollection.'] as $sourceCollectionKey => $sourceCollectionConfiguration) {
                if (substr($sourceCollectionKey, -1) === '.') {
                    if (empty($sourceCollectionConfiguration['if.']) || $this->cObj->checkIf($sourceCollectionConfiguration['if.'])) {
                        $activeSourceCollections[] = $sourceCollectionConfiguration;
                    }
                }
            }
 
            // apply option split to configurations
            $tsfe = $this->‪getTypoScriptFrontendController();
            $typoScriptService = GeneralUtility::makeInstance(TypoScriptService::class);
            $srcLayoutOptionSplitted = $typoScriptService->explodeConfigurationForOptionSplit((array)$conf['layout.'][$layoutKey . '.'], count($activeSourceCollections));
 
            // render sources
            foreach ($activeSourceCollections as $key => $sourceConfiguration) {
                $sourceLayout = $this->cObj->stdWrapValue('source', $srcLayoutOptionSplitted[$key] ?? []);
 
                $sourceRenderConfiguration = [
                    'file' => $file,
                    'file.' => $conf['file.'] ?? null,
                ];
 
                $imageQuality = $this->cObj->stdWrapValue('quality', $sourceConfiguration ?? []);
                if ($imageQuality) {
                    $sourceRenderConfiguration['file.']['params'] = '-quality ' . (int)$imageQuality;
                }
 
                $pixelDensity = (int)$this->cObj->stdWrapValue('pixelDensity', $sourceConfiguration, 1);
                $dimensionKeys = ['width', 'height', 'maxW', 'minW', 'maxH', 'minH', 'maxWidth', 'maxHeight', 'XY'];
                foreach ($dimensionKeys as $dimensionKey) {
                    $dimension = (string)$this->cObj->stdWrapValue($dimensionKey, $sourceConfiguration);
                    if ($dimension === '') {
                        $dimension = (string)$this->cObj->stdWrapValue($dimensionKey, $conf['file.'] ?? []);
                    }
                    if ($dimension !== '') {
                        if (str_contains($dimension, 'c') && ($dimensionKey === 'width' || $dimensionKey === 'height')) {
                            $dimensionParts = explode('c', $dimension, 2);
                            $dimension = ((int)$dimensionParts[0] * $pixelDensity) . 'c';
                            if ($dimensionParts[1]) {
                                $dimension .= $dimensionParts[1];
                            }
                        } elseif ($dimensionKey === 'XY') {
                            $dimensionParts = ‪GeneralUtility::intExplode(',', $dimension, false, 2);
                            $dimension = $dimensionParts[0] * $pixelDensity;
                            if ($dimensionParts[1]) {
                                $dimension .= ',' . $dimensionParts[1] * $pixelDensity;
                            }
                        } else {
                            $dimension = (int)$dimension * $pixelDensity;
                        }
                        $sourceRenderConfiguration['file.'][$dimensionKey] = $dimension;
                        // Remove the stdWrap properties for dimension as they have been processed already above.
                        unset($sourceRenderConfiguration['file.'][$dimensionKey . '.']);
                    }
                }
                $sourceInfo = $this->cObj->getImgResource($sourceRenderConfiguration['file'], $sourceRenderConfiguration['file.']);
                if ($sourceInfo) {
                    $sourceConfiguration['width'] = $sourceInfo[0];
                    $sourceConfiguration['height'] = $sourceInfo[1];
 
                    $urlPrefix = '';
 
                    // Prepend 'absRefPrefix' to file path only if file was not processed
                    // by FAL, e.g. GIFBUILDER
                    if (!isset($sourceInfo['originalFile']) && is_file(‪Environment::getPublicPath() . '/' . $sourceInfo['3'])) {
                        $urlPrefix = $tsfe->absRefPrefix;
                    }
 
                    $sourceConfiguration['src'] = htmlspecialchars($urlPrefix . $sourceInfo[3]);
                    $sourceConfiguration['selfClosingTagSlash'] = !empty($tsfe->xhtmlDoctype) ? ' /' : '';
 
                    $markerTemplateEngine = GeneralUtility::makeInstance(MarkerBasedTemplateService::class);
                    $oneSourceCollection = $markerTemplateEngine->substituteMarkerArray($sourceLayout, $sourceConfiguration, '###|###', true, true);
 
                    foreach (‪$GLOBALS['TYPO3_CONF_VARS']['SC_OPTIONS']['tslib/class.tslib_content.php']['getImageSourceCollection'] ?? [] as $className) {
                        $hookObject = GeneralUtility::makeInstance($className);
                        if (!$hookObject instanceof ‪ContentObjectOneSourceCollectionHookInterface) {
                            throw new \UnexpectedValueException(
                                '$hookObject must implement interface ' . ContentObjectOneSourceCollectionHookInterface::class,
                                1380017853
                            );
                        }
                        $oneSourceCollection = $hookObject->getOneSourceCollection((array)$sourceRenderConfiguration, (array)$sourceConfiguration, $oneSourceCollection, $this->cObj);
                    }
 
                    $sourceCollection .= $oneSourceCollection;
                }
            }
        }
        return $sourceCollection;
    }
 
    protected function ‪linkWrap(string $content, string $wrap): string
    {
        $wrapArr = explode('|', $wrap);
        if (preg_match('/\\{([0-9]*)\\}/', $wrapArr[0], $reg)) {
            $uid = $this->‪getTypoScriptFrontendController()->tmpl->rootLine[$reg[1]]['uid'] ?? null;
            if ($uid) {
                $wrapArr[0] = str_replace($reg[0], $uid, $wrapArr[0]);
            }
        }
        return trim($wrapArr[0] ?? '') . $content . trim($wrapArr[1] ?? '');
    }
 
    public function ‪getAltParam($conf, $longDesc = true)
    {
        $altText = trim((string)$this->cObj->stdWrapValue('altText', $conf ?? []));
        $titleText = trim((string)$this->cObj->stdWrapValue('titleText', $conf ?? []));
        $frontendController = $this->‪hasTypoScriptFrontendController()
            ? $this->‪getTypoScriptFrontendController()
            : null;
        if (isset($conf['longdescURL.']) && ($frontendController->config['config']['doctype'] ?? '') !== 'html5') {
            $longDescUrl = $this->cObj->typoLink_URL($conf['longdescURL.']);
        } else {
            $longDescUrl = trim($conf['longdescURL'] ?? '');
        }
        $longDescUrl = strip_tags($longDescUrl);
 
        // "alt":
        $altParam = ' alt="' . htmlspecialchars($altText) . '"';
        // "title":
        $emptyTitleHandling = $this->cObj->stdWrapValue('emptyTitleHandling', $conf ?? []);
        // Choices: 'keepEmpty' | 'useAlt' | 'removeAttr'
        if ($titleText || $emptyTitleHandling === 'keepEmpty') {
            $altParam .= ' title="' . htmlspecialchars($titleText) . '"';
        } elseif (!$titleText && $emptyTitleHandling === 'useAlt') {
            $altParam .= ' title="' . htmlspecialchars($altText) . '"';
        }
        // "longDesc" URL
        if ($longDesc && !empty($longDescUrl)) {
            $altParam .= ' longdesc="' . htmlspecialchars($longDescUrl) . '"';
        }
        return $altParam;
    }
}