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+<?php
+
+/*
+ +-----------------------------------------------------------------------+
+ | This file is part of the Roundcube Webmail client |
+ | Copyright (C) 2005-2011, The Roundcube Dev Team |
+ | Copyright (C) 2011, Kolab Systems AG |
+ | |
+ | Licensed under the GNU General Public License version 3 or |
+ | any later version with exceptions for skins & plugins. |
+ | See the README file for a full license statement. |
+ | |
+ | PURPOSE: |
+ | SORT/SEARCH/ESEARCH response handler |
+ +-----------------------------------------------------------------------+
+ | Author: Thomas Bruederli <roundcube@gmail.com> |
+ +-----------------------------------------------------------------------+
+*/
+
+/**
+ * Class holding a set of rcube_result_index instances that together form a
+ * result set of a multi-folder search
+ *
+ * @package Framework
+ * @subpackage Storage
+ */
+class rcube_result_multifolder
+{
+ public $multi = true;
+ public $sets = array();
+
+ protected $meta = array();
+ protected $order = 'ASC';
+
+
+ /**
+ * Object constructor.
+ */
+ public function __construct()
+ {
+ $this->meta = array('count' => 0);
+ }
+
+
+ /**
+ * Initializes object with SORT command response
+ *
+ * @param string $data IMAP response string
+ */
+ public function add($result)
+ {
+ $this->sets[] = $result;
+ $this->meta['count'] += $result->count();
+ }
+
+
+ /**
+ * Checks the result from IMAP command
+ *
+ * @return bool True if the result is an error, False otherwise
+ */
+ public function is_error()
+ {
+ return false;
+ }
+
+
+ /**
+ * Checks if the result is empty
+ *
+ * @return bool True if the result is empty, False otherwise
+ */
+ public function is_empty()
+ {
+ return empty($this->sets) || $this->meta['count'] == 0;
+ }
+
+
+ /**
+ * Returns number of elements in the result
+ *
+ * @return int Number of elements
+ */
+ public function count()
+ {
+ return $this->meta['count'];
+ }
+
+
+ /**
+ * Returns number of elements in the result.
+ * Alias for count() for compatibility with rcube_result_thread
+ *
+ * @return int Number of elements
+ */
+ public function count_messages()
+ {
+ return $this->count();
+ }
+
+
+ /**
+ * Reverts order of elements in the result
+ */
+ public function revert()
+ {
+ $this->order = $this->order == 'ASC' ? 'DESC' : 'ASC';
+ }
+
+
+ /**
+ * Check if the given message ID exists in the object
+ *
+ * @param int $msgid Message ID
+ * @param bool $get_index When enabled element's index will be returned.
+ * Elements are indexed starting with 0
+ * @return mixed False if message ID doesn't exist, True if exists or
+ * index of the element if $get_index=true
+ */
+ public function exists($msgid, $get_index = false)
+ {
+ return false;
+ }
+
+
+ /**
+ * Filters data set. Removes elements listed in $ids list.
+ *
+ * @param array $ids List of IDs to remove.
+ * @param string $folder IMAP folder
+ */
+ public function filter($ids = array(), $folder = null)
+ {
+ $this->meta['count'] = 0;
+ foreach ($this->sets as $set) {
+ if ($set->get_parameters('MAILBOX') == $folder) {
+ $set->filter($ids);
+ }
+ $this->meta['count'] += $set->count();
+ }
+ }
+
+ /**
+ * Filters data set. Removes elements not listed in $ids list.
+ *
+ * @param array $ids List of IDs to keep.
+ */
+ public function intersect($ids = array())
+ {
+ // not implemented
+ }
+
+ /**
+ * Return all messages in the result.
+ *
+ * @return array List of message IDs
+ */
+ public function get()
+ {
+ return array();
+ }
+
+
+ /**
+ * Return all messages in the result.
+ *
+ * @return array List of message IDs
+ */
+ public function get_compressed()
+ {
+ return '';
+ }
+
+
+ /**
+ * Return result element at specified index
+ *
+ * @param int|string $index Element's index or "FIRST" or "LAST"
+ *
+ * @return int Element value
+ */
+ public function get_element($index)
+ {
+ return null;
+ }
+
+
+ /**
+ * Returns response parameters, e.g. ESEARCH's MIN/MAX/COUNT/ALL/MODSEQ
+ * or internal data e.g. MAILBOX, ORDER
+ *
+ * @param string $param Parameter name
+ *
+ * @return array|string Response parameters or parameter value
+ */
+ public function get_parameters($param=null)
+ {
+ return $params;
+ }
+
+
+ /**
+ * Returns length of internal data representation
+ *
+ * @return int Data length
+ */
+ protected function length()
+ {
+ return $this->count();
+ }
+}