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<?php
declare(strict_types=1);
namespace Sabre\DAV\Xml\Property;
use Sabre\Xml\Element\XmlFragment;
use Sabre\Xml\Reader;
/**
* This class represents a 'complex' property that didn't have a default
* decoder.
*
* It's basically a container for an xml snippet.
*
* @copyright Copyright (C) fruux GmbH (https://fruux.com/)
* @author Evert Pot (http://evertpot.com/)
* @license http://sabre.io/license/ Modified BSD License
*/
class Complex extends XmlFragment
{
/**
* The deserialize method is called during xml parsing.
*
* This method is called statically, this is because in theory this method
* may be used as a type of constructor, or factory method.
*
* Often you want to return an instance of the current class, but you are
* free to return other data as well.
*
* You are responsible for advancing the reader to the next element. Not
* doing anything will result in a never-ending loop.
*
* If you just want to skip parsing for this element altogether, you can
* just call $reader->next();
*
* $reader->parseInnerTree() will parse the entire sub-tree, and advance to
* the next element.
*
* @param Reader $reader
*
* @return mixed
*/
public static function xmlDeserialize(Reader $reader)
{
$xml = $reader->readInnerXml();
if (Reader::ELEMENT === $reader->nodeType && $reader->isEmptyElement) {
// Easy!
$reader->next();
return null;
}
// Now we have a copy of the inner xml, we need to traverse it to get
// all the strings. If there's no non-string data, we just return the
// string, otherwise we return an instance of this class.
$reader->read();
$nonText = false;
$text = '';
while (true) {
switch ($reader->nodeType) {
case Reader::ELEMENT:
$nonText = true;
$reader->next();
continue 2;
case Reader::TEXT:
case Reader::CDATA:
$text .= $reader->value;
break;
case Reader::END_ELEMENT:
break 2;
}
$reader->read();
}
// Make sure we advance the cursor one step further.
$reader->read();
if ($nonText) {
$new = new self($xml);
return $new;
} else {
return $text;
}
}
}
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