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47 lines
1.5 KiB
47 lines
1.5 KiB
<?php
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/**
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* @license MIT
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* Copyright 2017, Dustin Wilson, J. King et al.
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* See LICENSE and AUTHORS files for details
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*/
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declare(strict_types=1);
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namespace MensBeam\HTML\DOM;
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/** Class specifically for template elements to handle its content property. */
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class HTMLTemplateElement extends Element {
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public $content = null;
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public function __construct(Document $ownerDocument, string $qualifiedName, ?string $namespace = '') {
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parent::__construct($qualifiedName, null, $namespace);
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// Elements that are created by their constructor in PHP aren't owned by any
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// document and are readonly until owned by one. Temporarily append to a
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// document fragment so the element will be owned by the supplied owner
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// document.
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$frag = $ownerDocument->createDocumentFragment();
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$frag->appendChild($this);
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$frag->removeChild($this);
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unset($frag);
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$this->content = $this->ownerDocument->createDocumentFragment();
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// Template elements need to have a reference kept in userland
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ElementSet::add($this);
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}
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public function cloneNode(bool $deep = false) {
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$copy = $this->ownerDocument->createElement('template');
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foreach ($this->attributes as $attr) {
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$copy->setAttributeNS($attr->namespaceURI, $attr->name, $attr->value);
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}
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if ($deep) {
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foreach ($this->content->childNodes as $child) {
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$copy->content->appendChild($child->cloneNode(true));
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}
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}
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return $copy;
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}
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}
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