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<?php
/**
* @copyright Copyright (c) 2016, ownCloud, Inc.
*
* @author Christoph Wurst <christoph@winzerhof-wurst.at>
* @author Thomas Müller <thomas.mueller@tmit.eu>
* @author Vincent Petry <vincent@nextcloud.com>
*
* @license AGPL-3.0
*
* This code is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License, version 3,
* as published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License, version 3,
* along with this program. If not, see <http://www.gnu.org/licenses/>
*
*/
namespace OCA\DAV\Connector\Sabre;
use Sabre\Xml\Element;
use Sabre\Xml\Reader;
use Sabre\Xml\Writer;
/**
* TagList property
*
* This property contains multiple "tag" elements, each containing a tag name.
*/
class TagList implements Element {
public const NS_OWNCLOUD = 'http://owncloud.org/ns';
/**
* tags
*
* @var array
*/
private $tags;
/**
* @param array $tags
*/
public function __construct(array $tags) {
$this->tags = $tags;
}
/**
* Returns the tags
*
* @return array
*/
public function getTags() {
return $this->tags;
}
/**
* The deserialize method is called during xml parsing.
*
* This method is called statictly, 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) {
$tags = [];
$tree = $reader->parseInnerTree();
if ($tree === null) {
return null;
}
foreach ($tree as $elem) {
if ($elem['name'] === '{' . self::NS_OWNCLOUD . '}tag') {
$tags[] = $elem['value'];
}
}
return new self($tags);
}
/**
* The xmlSerialize method is called during xml writing.
*
* Use the $writer argument to write its own xml serialization.
*
* An important note: do _not_ create a parent element. Any element
* implementing XmlSerializble should only ever write what's considered
* its 'inner xml'.
*
* The parent of the current element is responsible for writing a
* containing element.
*
* This allows serializers to be re-used for different element names.
*
* If you are opening new elements, you must also close them again.
*
* @param Writer $writer
* @return void
*/
public function xmlSerialize(Writer $writer) {
foreach ($this->tags as $tag) {
$writer->writeElement('{' . self::NS_OWNCLOUD . '}tag', $tag);
}
}
}
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