138 lines
2.8 KiB
PHP
138 lines
2.8 KiB
PHP
<?php
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/**
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* Copyright 2015-2017 Horde LLC (http://www.horde.org/)
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*
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* See the enclosed file COPYING for license information (LGPL). If you
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* did not receive this file, see http://www.horde.org/licenses/lgpl21.
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*
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* @category Horde
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* @copyright 2015-2017 Horde LLC
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* @license http://www.horde.org/licenses/lgpl21 LGPL 2.1
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* @package Mime
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*/
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/**
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* Recursive iterator for Horde_Mime_Part objects. This iterator is
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* self-contained and independent of all other iterators.
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*
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* @author Michael Slusarz <slusarz@horde.org>
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* @category Horde
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* @copyright 2015-2017 Horde LLC
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* @license http://www.horde.org/licenses/lgpl21 LGPL 2.1
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* @package Mime
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* @since 2.9.0
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*/
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class Horde_Mime_Part_Iterator
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implements Countable, Iterator
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{
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/**
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* Include the base when iterating?
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*
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* @var boolean
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*/
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protected $_includeBase;
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/**
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* Base part.
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*
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* @var Horde_Mime_Part
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*/
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protected $_part;
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/**
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* State data.
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*
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* @var object
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*/
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protected $_state;
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/**
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* Constructor.
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*/
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public function __construct(Horde_Mime_Part $part, $base = false)
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{
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$this->_includeBase = (bool)$base;
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$this->_part = $part;
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}
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/* Countable methods. */
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/**
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* Returns the number of message parts.
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*
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* @return integer Number of message parts.
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*/
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public function count()
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{
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return count(iterator_to_array($this));
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}
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/* RecursiveIterator methods. */
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/**
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*/
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public function current()
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{
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return $this->valid()
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? $this->_state->current
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: null;
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}
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/**
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*/
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public function key()
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{
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return ($curr = $this->current())
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? $curr->getMimeId()
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: null;
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}
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/**
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*/
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public function next()
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{
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if (!isset($this->_state)) {
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return;
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}
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$out = $this->_state->current->getPartByIndex($this->_state->index++);
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if ($out) {
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$this->_state->recurse[] = array(
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$this->_state->current,
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$this->_state->index
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);
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$this->_state->current = $out;
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$this->_state->index = 0;
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} elseif ($tmp = array_pop($this->_state->recurse)) {
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$this->_state->current = $tmp[0];
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$this->_state->index = $tmp[1];
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$this->next();
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} else {
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unset($this->_state);
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}
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}
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/**
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*/
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public function rewind()
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{
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$this->_state = new stdClass;
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$this->_state->current = $this->_part;
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$this->_state->index = 0;
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$this->_state->recurse = array();
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if (!$this->_includeBase) {
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$this->next();
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}
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}
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/**
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*/
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public function valid()
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{
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return !empty($this->_state);
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}
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}
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