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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 Zend_View
* @subpackage Helper
* @copyright Copyright (c) 2005-2009 Zend Technologies USA Inc. (http://www.zend.com)
* @version $Id: Registry.php 18951 2009-11-12 16:26:19Z alexander $
* @license http://framework.zend.com/license/new-bsd New BSD License
*/
/** Zend_Registry */
require_once 'Zend/Registry.php';
/** Zend_View_Helper_Placeholder_Container_Abstract */
require_once 'Zend/View/Helper/Placeholder/Container/Abstract.php';
/** Zend_View_Helper_Placeholder_Container */
require_once 'Zend/View/Helper/Placeholder/Container.php';
/**
* Registry for placeholder containers
*
* @package Zend_View
* @subpackage Helper
* @copyright Copyright (c) 2005-2009 Zend Technologies USA Inc. (http://www.zend.com)
* @license http://framework.zend.com/license/new-bsd New BSD License
*/
class Zend_View_Helper_Placeholder_Registry
{
/**
* Zend_Registry key under which placeholder registry exists
* @const string
*/
const REGISTRY_KEY = 'Zend_View_Helper_Placeholder_Registry';
/**
* Default container class
* @var string
*/
protected $_containerClass = 'Zend_View_Helper_Placeholder_Container';
/**
* Placeholder containers
* @var array
*/
protected $_items = array();
/**
* Retrieve or create registry instnace
*
* @return void
*/
public static function getRegistry()
{
if (Zend_Registry::isRegistered(self::REGISTRY_KEY)) {
$registry = Zend_Registry::get(self::REGISTRY_KEY);
} else {
$registry = new self();
Zend_Registry::set(self::REGISTRY_KEY, $registry);
}
return $registry;
}
/**
* createContainer
*
* @param string $key
* @param array $value
* @return Zend_View_Helper_Placeholder_Container_Abstract
*/
public function createContainer($key, array $value = array())
{
$key = (string) $key;
$this->_items[$key] = new $this->_containerClass(array());
return $this->_items[$key];
}
/**
* Retrieve a placeholder container
*
* @param string $key
* @return Zend_View_Helper_Placeholder_Container_Abstract
*/
public function getContainer($key)
{
$key = (string) $key;
if (isset($this->_items[$key])) {
return $this->_items[$key];
}
$container = $this->createContainer($key);
return $container;
}
/**
* Does a particular container exist?
*
* @param string $key
* @return bool
*/
public function containerExists($key)
{
$key = (string) $key;
$return = array_key_exists($key, $this->_items);
return $return;
}
/**
* Set the container for an item in the registry
*
* @param string $key
* @param Zend_View_Placeholder_Container_Abstract $container
* @return Zend_View_Placeholder_Registry
*/
public function setContainer($key, Zend_View_Helper_Placeholder_Container_Abstract $container)
{
$key = (string) $key;
$this->_items[$key] = $container;
return $this;
}
/**
* Delete a container
*
* @param string $key
* @return bool
*/
public function deleteContainer($key)
{
$key = (string) $key;
if (isset($this->_items[$key])) {
unset($this->_items[$key]);
return true;
}
return false;
}
/**
* Set the container class to use
*
* @param string $name
* @return Zend_View_Helper_Placeholder_Registry
*/
public function setContainerClass($name)
{
if (!class_exists($name)) {
require_once 'Zend/Loader.php';
Zend_Loader::loadClass($name);
}
$reflection = new ReflectionClass($name);
if (!$reflection->isSubclassOf(new ReflectionClass('Zend_View_Helper_Placeholder_Container_Abstract'))) {
require_once 'Zend/View/Helper/Placeholder/Registry/Exception.php';
throw new Zend_View_Helper_Placeholder_Registry_Exception('Invalid Container class specified');
}
$this->_containerClass = $name;
return $this;
}
/**
* Retrieve the container class
*
* @return string
*/
public function getContainerClass()
{
return $this->_containerClass;
}
}
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