wcfsetup/install/files/lib/system/html/upcast/node/HtmlUpcastNodeWoltlabMetacode.class.php

   1 <?php
   2
   3 namespace wcf\system\html\upcast\node;
   4
   5 use wcf\data\bbcode\BBCodeCache;
   6 use wcf\system\html\metacode\upcast\IMetacodeUpcast;
   7 use wcf\system\html\node\AbstractHtmlNodeProcessor;
   8 use wcf\util\DOMUtil;
   9
  10 /**
  11  * Processes bbcodes represented by `<woltlab-metacode>`.
  12  *
  13  * @author      Olaf Braun
  14  * @copyright   2001-2024 WoltLab GmbH
  15  * @license     GNU Lesser General Public License <http://opensource.org/licenses/lgpl-license.php>
  16  * @since       6.1
  17  */
  18 final class HtmlUpcastNodeWoltlabMetacode extends AbstractHtmlUpcastNode
  19 {
  20     /**
  21      * @inheritDoc
  22      */
  23     protected $tagName = 'woltlab-metacode';
  24
  25     #[\Override]
  26     public function process(array $elements, AbstractHtmlNodeProcessor $htmlNodeProcessor)
  27     {
  28         /** @var IMetacodeUpcast[] $upcasters */
  29         $upcasters = [];
  30         $nodes = [];
  31
  32         /** @var \DOMElement $element */
  33         foreach ($elements as $element) {
  34             if (DOMUtil::isRemoved($element) || $element->parentNode === null) {
  35                 // ignore elements that existed, but have been removed
  36                 // from the DOM due to action taken by an upcaster
  37                 continue;
  38             }
  39
  40             $name = $element->getAttribute('data-name');
  41             if ($name === 'abstract') {
  42                 continue;
  43             }
  44
  45             $attributes = $htmlNodeProcessor->parseAttributes($element->getAttribute('data-attributes'));
  46             if ($attributes === []) {
  47                 $element->removeAttribute('data-attributes');
  48             }
  49
  50             // check for upcast
  51             $upcast = $upcasters[$name] ?? null;
  52             if ($upcast === null) {
  53                 $className = 'wcf\\system\\html\\metacode\\upcast\\' . \ucfirst($name) . 'MetacodeUpcast';
  54                 if (\class_exists($className)) {
  55                     $upcast = new $className();
  56
  57                     $upcasters[$name] = $upcast;
  58                 }
  59             }
  60             if ($upcast === null) {
  61                 continue;
  62             }
  63
  64             $upcast->cacheObject($attributes);
  65             $nodes[] = [$element, $name, $upcast, $attributes];
  66         }
  67
  68         foreach ($nodes as [$element, $name, $upcast, $attributes]) {
  69             if ($upcast->hasValidAttributes($attributes)) {
  70                 $upcast->upcast($element, $attributes);
  71             } else {
  72                 // Replace this with a text node
  73                 /** @see HtmlBBCodeParser::buildBBCodeTag() */
  74                 $attributes = \array_filter($attributes, fn($value) => $value !== null);
  75
  76                 if (!empty($attributes)) {
  77                     foreach ($attributes as &$attribute) {
  78                         $attribute = "'" . \addcslashes($attribute, "'") . "'";
  79                     }
  80                     unset($attribute);
  81
  82                     $attributes = '=' . \implode(",", $attributes);
  83                 } else {
  84                     $attributes = '';
  85                 }
  86                 $text = \sprintf('[%s%s][/%s]', $name, $attributes, $name);
  87                 $bbcode = BBCodeCache::getInstance()->getBBCodeByTag($name);
  88
  89                 if ($bbcode === null || $bbcode->isBlockElement) {
  90                     $newElement = $element->ownerDocument->createElement('p');
  91                     $newElement->textContent = $text;
  92                     DOMUtil::replaceElement($element, $newElement);
  93                 } else {
  94                     $element->parentNode->insertBefore($element->ownerDocument->createTextNode($text), $element);
  95                     $element->parentNode->removeChild($element);
  96                 }
  97             }
  98         }
  99     }
 100
 101     #[\Override]
 102     public function replaceTag(array $data)
 103     {
 104         return $data['parsedTag'];
 105     }
 106 }