protected function getElement(NodeInterface $node)
{
$this->eventDispatcher->dispatch(Events::preRender($node));
// XML fragment?
if ($node instanceof FragmentInterface) {
return $this->appendXML($node->getNodeValue());
}
// Create
$this->writer->startElement($node->getNodeName());
// Attributes
// With XMLWriter, attributes must be written prior to content and children
// See http://www.php.net/manual/en/function.xmlwriter-write-attribute.php#103498
foreach ($node->getAttributes() as $name => $value) {
$this->writer->writeAttribute($name, $value);
}
// Value
if ($node->getNodeValue() !== null) {
$this->writer->text($node->getNodeValue());
}
// Children
foreach ($node->getChildren() as $child) {
$this->getElement($child);
}
// End create
$this->writer->endElement();
$this->eventDispatcher->dispatch(Events::postRender($node));
}
protected function getElement(NodeInterface $node)
{
$this->eventDispatcher->dispatch(Events::preRender($node));
// XML fragment?
if ($node instanceof FragmentInterface) {
return $this->appendXML($node->getNodeValue());
}
// Create
$element = $this->document->createElement($node->getNodeName());
// Value
if ($node->getNodeValue() !== null) {
$element->appendChild($this->document->createTextNode($node->getNodeValue()));
}
// Attributes
foreach ($node->getAttributes() as $name => $value) {
$element->setAttribute($name, $value);
}
// Children
foreach ($node->getChildren() as $child) {
$subelement = $this->getElement($child);
$element->appendChild($subelement);
}
$this->eventDispatcher->dispatch(Events::postRender($node));
return $element;
}
public function registerListeners(EventDispatcherInterface $dispatcher)
{
// Pre-render filters
$dispatcher->addListener(Events::preRender($this), array($this, 'preFilterLayout'));
$dispatcher->addListener(Events::preRender($this), array($this, 'preFilterRelativePosition'));
// Post-render filters
$dispatcher->addListener(Events::postRender($this), array($this, 'postFilterLayout'));
}