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   1  <?php
   2  
   3  /**
   4  * @package   s9e\TextFormatter
   5  * @copyright Copyright (c) 2010-2022 The s9e authors
   6  * @license   http://www.opensource.org/licenses/mit-license.php The MIT License
   7  */
   8  namespace s9e\TextFormatter\Configurator\TemplateNormalizations;
   9  
  10  use DOMElement;
  11  use DOMException;
  12  
  13  /**
  14  * Inline the elements declarations of a template
  15  *
  16  * Will replace
  17  *     <xsl:element name="div"><xsl:apply-templates/></xsl:element>
  18  * with
  19  *     <div><xsl:apply-templates/></div>
  20  */
  21  class InlineElements extends AbstractNormalization
  22  {
  23      /**
  24      * {@inheritdoc}
  25      */
  26      protected $queries = ['//xsl:element'];
  27  
  28      /**
  29      * {@inheritdoc}
  30      */
  31  	protected function normalizeElement(DOMElement $element)
  32      {
  33          $elName = $element->getAttribute('name');
  34          $dom    = $this->ownerDocument;
  35  
  36          try
  37          {
  38              // Create the new static element
  39              $newElement = ($element->hasAttribute('namespace'))
  40                          ? $dom->createElementNS($element->getAttribute('namespace'), $elName)
  41                          : $dom->createElement($elName);
  42          }
  43          catch (DOMException $e)
  44          {
  45              // Ignore this element if an exception got thrown
  46              return;
  47          }
  48  
  49          // Replace the old <xsl:element/> with it. We do it now so that libxml doesn't have to
  50          // redeclare the XSL namespace
  51          $element->parentNode->replaceChild($newElement, $element);
  52  
  53          // One by one and in order, we move the nodes from the old element to the new one
  54          while ($element->firstChild)
  55          {
  56              $newElement->appendChild($element->removeChild($element->firstChild));
  57          }
  58      }
  59  }