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<?php
/**
* Zend Framework
*
* LICENSE
*
* This source file is subject to the new BSD license that is bundled
* with this package in the file LICENSE.txt.
* It is also available through the world-wide-web at this URL:
* http://framework.zend.com/license/new-bsd
* If you did not receive a copy of the license and are unable to
* obtain it through the world-wide-web, please send an email
* to license@zend.com so we can send you a copy immediately.
*
* @category Zend
* @package Postman_Zend_Mail
* @subpackage Storage
* @copyright Copyright (c) 2005-2015 Zend Technologies USA Inc. (http://www.zend.com)
* @license http://framework.zend.com/license/new-bsd New BSD License
* @version $Id$
*/
/**
* @category Zend
* @package Postman_Zend_Mail
* @subpackage Storage
* @copyright Copyright (c) 2005-2015 Zend Technologies USA Inc. (http://www.zend.com)
* @license http://framework.zend.com/license/new-bsd New BSD License
*/
class Postman_Zend_Mail_Storage_Folder implements RecursiveIterator
{
/**
* subfolders of folder array(localName => Postman_Zend_Mail_Storage_Folder folder)
* @var array
*/
protected $_folders;
/**
* local name (name of folder in parent folder)
* @var string
*/
protected $_localName;
/**
* global name (absolute name of folder)
* @var string
*/
protected $_globalName;
/**
* folder is selectable if folder is able to hold messages, else it's just a parent folder
* @var bool
*/
protected $_selectable = true;
/**
* create a new mail folder instance
*
* @param string $localName name of folder in current subdirectory
* @param string $globalName absolute name of folder
* @param bool $selectable if true folder holds messages, if false it's just a parent for subfolders
* @param array $folders init with given instances of Postman_Zend_Mail_Storage_Folder as subfolders
*/
public function __construct($localName, $globalName = '', $selectable = true, array $folders = array())
{
$this->_localName = $localName;
$this->_globalName = $globalName ? $globalName : $localName;
$this->_selectable = $selectable;
$this->_folders = $folders;
}
/**
* implements RecursiveIterator::hasChildren()
*
* @return bool current element has children
*/
public function hasChildren()
{
$current = $this->current();
return $current && $current instanceof Postman_Zend_Mail_Storage_Folder && !$current->isLeaf();
}
/**
* implements RecursiveIterator::getChildren()
*
* @return Postman_Zend_Mail_Storage_Folder same as self::current()
*/
public function getChildren()
{
return $this->current();
}
/**
* implements Iterator::valid()
*
* @return bool check if there's a current element
*/
public function valid()
{
return key($this->_folders) !== null;
}
/**
* implements Iterator::next()
*
* @return null
*/
public function next()
{
next($this->_folders);
}
/**
* implements Iterator::key()
*
* @return string key/local name of current element
*/
public function key()
{
return key($this->_folders);
}
/**
* implements Iterator::current()
*
* @return Postman_Zend_Mail_Storage_Folder current folder
*/
public function current()
{
return current($this->_folders);
}
/**
* implements Iterator::rewind()
*
* @return null
*/
public function rewind()
{
reset($this->_folders);
}
/**
* get subfolder named $name
*
* @param string $name wanted subfolder
* @return Postman_Zend_Mail_Storage_Folder folder named $folder
* @throws Postman_Zend_Mail_Storage_Exception
*/
public function __get($name)
{
if (!isset($this->_folders[$name])) {
/**
* @see Postman_Zend_Mail_Storage_Exception
*/
require_once 'Zend/Mail/Storage/Exception.php';
throw new Postman_Zend_Mail_Storage_Exception("no subfolder named $name");
}
return $this->_folders[$name];
}
/**
* add or replace subfolder named $name
*
* @param string $name local name of subfolder
* @param Postman_Zend_Mail_Storage_Folder $folder instance for new subfolder
* @return null
*/
public function __set($name, Postman_Zend_Mail_Storage_Folder $folder)
{
$this->_folders[$name] = $folder;
}
/**
* remove subfolder named $name
*
* @param string $name local name of subfolder
* @return null
*/
public function __unset($name)
{
unset($this->_folders[$name]);
}
/**
* magic method for easy output of global name
*
* @return string global name of folder
*/
public function __toString()
{
return (string)$this->getGlobalName();
}
/**
* get local name
*
* @return string local name
*/
public function getLocalName()
{
return $this->_localName;
}
/**
* get global name
*
* @return string global name
*/
public function getGlobalName()
{
return $this->_globalName;
}
/**
* is this folder selectable?
*
* @return bool selectable
*/
public function isSelectable()
{
return $this->_selectable;
}
/**
* check if folder has no subfolder
*
* @return bool true if no subfolders
*/
public function isLeaf()
{
return empty($this->_folders);
}
}
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