/**
* Create node.
*
* @param Node $parent Parent node.
* @param \DOMElement|null $element DOM element.
*
* @since 1.0
*
* @throws \InvalidArgumentException If $element has invalid namespace.
*/
public function __construct(Node $parent, \DOMElement $element = null)
{
if (null === $element) {
$owner = $parent->getDomElement();
$ns = $this->ns();
$element = $owner->ownerDocument->createElementNS($ns, $this->getNodeName());
$owner->appendChild($element);
}
parent::__construct($element, $parent);
}
/**
* Create document.
*
* @param Extensions $extensions Extension registry.
* @param \DOMDocument|null $document Source document.
*
* @throws \InvalidArgumentException If $document root node has invalid name.
*
* @since 1.0
*/
public function __construct(Extensions $extensions, \DOMDocument $document = null)
{
$this->extensions = $extensions;
if (null === $document) {
$document = new \DOMDocument('1.0', 'utf-8');
$element = $document->createElementNS($this->ns(), $this->getRootNodeName());
$namespaces = $this->getExtensions()->getNamespaces();
foreach ($namespaces as $prefix => $namespace) {
if ($namespace !== $this->ns()) {
$element->setAttributeNS(Atom::XMLNS, 'xmlns:' . $prefix, $namespace);
}
}
$document->appendChild($element);
} elseif ($this->getRootNodeName() !== $document->documentElement->localName) {
throw new \InvalidArgumentException(sprintf('Unexpected root node "%s", expecting "%s"', $document->documentElement->localName, $this->getRootNodeName()));
}
parent::__construct($document->documentElement);
}