1 files changed, 59 insertions, 0 deletions
diff --git a/lib/private/share/searchresultsorter.php b/lib/private/share/searchresultsorter.php
new file mode 100644
index 00000000000..fbf77179097
--- /dev/null
+++ b/lib/private/share/searchresultsorter.php
@@ -0,0 +1,59 @@
+<?php
+/**
+ * Copyright (c) 2014 Arthur Schiwon <blizzz@owncloud.com>
+ * This file is licensed under the Affero General Public License version 3 or
+ * later.
+ * See the COPYING-README file.
+ *
+ */
+namespace OC\Share;
+
+class SearchResultSorter {
+	private $search;
+	private $encoding;
+	private $key;
+	private $log;
+
+	/**
+	 * @param $search the search term as was given by the user
+	 * @param $key the array key containing the value that should be compared
+	 * against
+	 * @param $encoding optional, encoding to use, defaults to UTF-8
+	 * @param $log optional, an \OC\Log instance
+	 */
+	public function __construct($search, $key, \OC\Log $log = null, $encoding = 'UTF-8') {
+		$this->encoding = $encoding;
+		$this->key = $key;
+		$this->log = $log;
+		$this->search = mb_strtolower($search, $this->encoding);
+	}
+
+	/**
+	 * User and Group names matching the search term at the beginning shall appear
+	 * on top of the share dialog. Following entries in alphabetical order.
+	 * Callback function for usort. http://php.net/usort
+	 */
+	public function sort($a, $b) {
+		if(!isset($a[$this->key]) || !isset($b[$this->key])) {
+			if(!is_null($this->log)) {
+				$this->log->error('Sharing dialogue: cannot sort due to ' .
+								  'missing array key', array('app' => 'core'));
+			}
+			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, $this->encoding));
+		} elseif ($i === 0) {
+			return -1;
+		} else {
+			return 1;
+		}
+	}
+}
+