nextcloud/lib/private/Share/SearchResultSorter.php

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<?php
/**
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* @copyright Copyright (c) 2016, ownCloud, Inc.
*
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* @author Arthur Schiwon <blizzz@arthur-schiwon.de>
* @author Christoph Wurst <christoph@winzerhof-wurst.at>
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* @author Morris Jobke <hey@morrisjobke.de>
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* @author Robin McCorkell <robin@mccorkell.me.uk>
* @author Roeland Jago Douma <roeland@famdouma.nl>
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*
* @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/>
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*
*/
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namespace OC\Share;
use OCP\ILogger;
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class SearchResultSorter {
private $search;
private $encoding;
private $key;
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private $log;
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/**
* @param string $search the search term as was given by the user
* @param string $key the array key containing the value that should be compared
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* against
* @param string $encoding optional, encoding to use, defaults to UTF-8
* @param ILogger $log optional
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*/
public function __construct($search, $key, ILogger $log = null, $encoding = 'UTF-8') {
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$this->encoding = $encoding;
$this->key = $key;
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$this->log = $log;
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$this->search = mb_strtolower($search, $this->encoding);
}
/**
* User and Group names matching the search term at the beginning shall appear
* on top of the share dialog. Following entries in alphabetical order.
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* Callback function for usort. http://php.net/usort
*/
public function sort($a, $b) {
if(!isset($a[$this->key]) || !isset($b[$this->key])) {
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if(!is_null($this->log)) {
$this->log->error('Sharing dialogue: cannot sort due to ' .
'missing array key', ['app' => 'core']);
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}
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return 0;
}
$nameA = mb_strtolower($a[$this->key], $this->encoding);
$nameB = mb_strtolower($b[$this->key], $this->encoding);
$i = mb_strpos($nameA, $this->search, 0, $this->encoding);
$j = mb_strpos($nameB, $this->search, 0, $this->encoding);
if($i === $j || $i > 0 && $j > 0) {
return strcmp(mb_strtolower($nameA, $this->encoding),
mb_strtolower($nameB, $this->encoding));
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} elseif ($i === 0) {
return -1;
} else {
return 1;
}
}
}