<?php 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 */ static function xmlDeserialize(Reader $reader) { $xml = $reader->readInnerXml(); if ($reader->nodeType === Reader::ELEMENT && $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; } } }