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			970 lines
		
	
	
		
			30 KiB
		
	
	
	
		
			PHP
		
	
	
	
	
	
			
		
		
	
	
			970 lines
		
	
	
		
			30 KiB
		
	
	
	
		
			PHP
		
	
	
	
	
	
| <?php
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| /**
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|  * Zend Framework
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|  *
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|  * LICENSE
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|  *
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|  * This source file is subject to the new BSD license that is bundled
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|  * with this package in the file LICENSE.txt.
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|  * It is also available through the world-wide-web at this URL:
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|  * http://framework.zend.com/license/new-bsd
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|  * If you did not receive a copy of the license and are unable to
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|  * obtain it through the world-wide-web, please send an email
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|  * to license@zend.com so we can send you a copy immediately.
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|  *
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|  * @category   Zend
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|  * @package    Zend_View
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|  * @subpackage Helper
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|  * @copyright  Copyright (c) 2005-2014 Zend Technologies USA Inc. (http://www.zend.com)
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|  * @license    http://framework.zend.com/license/new-bsd     New BSD License
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|  * @version    $Id$
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|  */
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| 
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| /**
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|  * @see Zend_View_Helper_Navigation_Helper
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|  */
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| 
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| /**
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|  * @see Zend_View_Helper_HtmlElement
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|  */
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| 
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| /**
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|  * Base class for navigational helpers
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|  *
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|  * @category   Zend
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|  * @package    Zend_View
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|  * @subpackage Helper
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|  * @copyright  Copyright (c) 2005-2014 Zend Technologies USA Inc. (http://www.zend.com)
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|  * @license    http://framework.zend.com/license/new-bsd     New BSD License
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|  */
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| abstract class Zend_View_Helper_Navigation_HelperAbstract
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|     extends Zend_View_Helper_HtmlElement
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|     implements Zend_View_Helper_Navigation_Helper
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| {
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|     /**
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|      * Container to operate on by default
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|      *
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|      * @var Zend_Navigation_Container
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|      */
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|     protected $_container;
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| 
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|     /**
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|      * The minimum depth a page must have to be included when rendering
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|      *
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|      * @var int
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|      */
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|     protected $_minDepth;
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| 
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|     /**
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|      * The maximum depth a page can have to be included when rendering
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|      *
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|      * @var int
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|      */
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|     protected $_maxDepth;
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| 
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|     /**
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|      * Indentation string
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|      *
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|      * @var string
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|      */
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|     protected $_indent = '';
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| 
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|     /**
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|      * Whether HTML/XML output should be formatted
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|      *
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|      * @var bool
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|      */
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|     protected $_formatOutput = true;
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| 
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|     /**
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|      * Prefix for IDs when they are normalized
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|      *
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|      * @var string|null
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|      */
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|     protected $_prefixForId = null;
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| 
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|     /**
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|      * Skip current prefix for IDs when they are normalized (flag)
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|      *
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|      * @var bool
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|      */
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|     protected $_skipPrefixForId = false;
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| 
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|     /**
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|      * Translator
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|      *
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|      * @var Zend_Translate_Adapter
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|      */
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|     protected $_translator;
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| 
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|     /**
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|      * ACL to use when iterating pages
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|      *
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|      * @var Zend_Acl
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|      */
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|     protected $_acl;
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| 
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|     /**
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|      * Wheter invisible items should be rendered by this helper
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|      *
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|      * @var bool
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|      */
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|     protected $_renderInvisible = false;
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| 
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|     /**
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|      * ACL role to use when iterating pages
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|      *
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|      * @var string|Zend_Acl_Role_Interface
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|      */
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|     protected $_role;
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| 
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|     /**
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|      * Whether translator should be used for page labels and titles
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|      *
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|      * @var bool
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|      */
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|     protected $_useTranslator = true;
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| 
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|     /**
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|      * Whether ACL should be used for filtering out pages
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|      *
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|      * @var bool
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|      */
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|     protected $_useAcl = true;
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| 
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|     /**
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|      * Default ACL to use when iterating pages if not explicitly set in the
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|      * instance by calling {@link setAcl()}
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|      *
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|      * @var Zend_Acl
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|      */
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|     protected static $_defaultAcl;
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| 
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|     /**
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|      * Default ACL role to use when iterating pages if not explicitly set in the
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|      * instance by calling {@link setRole()}
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|      *
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|      * @var string|Zend_Acl_Role_Interface
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|      */
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|     protected static $_defaultRole;
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| 
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|     // Accessors:
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| 
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|     /**
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|      * Sets navigation container the helper operates on by default
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|      *
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|      * Implements {@link Zend_View_Helper_Navigation_Interface::setContainer()}.
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|      *
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|      * @param  Zend_Navigation_Container $container        [optional] container
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|      *                                                     to operate on.
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|      *                                                     Default is null,
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|      *                                                     meaning container
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|      *                                                     will be reset.
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|      * @return Zend_View_Helper_Navigation_HelperAbstract  fluent interface,
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|      *                                                     returns self
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|      */
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|     public function setContainer(Zend_Navigation_Container $container = null)
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|     {
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|         $this->_container = $container;
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|         return $this;
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|     }
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| 
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|     /**
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|      * Returns the navigation container helper operates on by default
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|      *
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|      * Implements {@link Zend_View_Helper_Navigation_Interface::getContainer()}.
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|      *
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|      * If a helper is not explicitly set in this helper instance by calling
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|      * {@link setContainer()} or by passing it through the helper entry point,
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|      * this method will look in {@link Zend_Registry} for a container by using
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|      * the key 'Zend_Navigation'.
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|      *
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|      * If no container is set, and nothing is found in Zend_Registry, a new
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|      * container will be instantiated and stored in the helper.
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|      *
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|      * @return Zend_Navigation_Container  navigation container
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|      */
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|     public function getContainer()
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|     {
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|         if (null === $this->_container) {
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|             // try to fetch from registry first
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|             if (Zend_Registry::isRegistered('Zend_Navigation')) {
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|                 $nav = Zend_Registry::get('Zend_Navigation');
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|                 if ($nav instanceof Zend_Navigation_Container) {
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|                     return $this->_container = $nav;
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|                 }
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|             }
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| 
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|             // nothing found in registry, create new container
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|             $this->_container = new Zend_Navigation();
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|         }
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| 
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|         return $this->_container;
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|     }
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| 
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|     /**
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|      * Sets the minimum depth a page must have to be included when rendering
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|      *
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|      * @param  int $minDepth                               [optional] minimum
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|      *                                                     depth. Default is
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|      *                                                     null, which sets
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|      *                                                     no minimum depth.
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|      * @return Zend_View_Helper_Navigation_HelperAbstract  fluent interface,
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|      *                                                     returns self
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|      */
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|     public function setMinDepth($minDepth = null)
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|     {
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|         if (null === $minDepth || is_int($minDepth)) {
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|             $this->_minDepth = $minDepth;
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|         } else {
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|             $this->_minDepth = (int) $minDepth;
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|         }
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|         return $this;
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|     }
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| 
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|     /**
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|      * Returns minimum depth a page must have to be included when rendering
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|      *
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|      * @return int|null  minimum depth or null
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|      */
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|     public function getMinDepth()
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|     {
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|         if (!is_int($this->_minDepth) || $this->_minDepth < 0) {
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|             return 0;
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|         }
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|         return $this->_minDepth;
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|     }
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| 
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|     /**
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|      * Sets the maximum depth a page can have to be included when rendering
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|      *
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|      * @param  int $maxDepth                               [optional] maximum
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|      *                                                     depth. Default is
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|      *                                                     null, which sets no
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|      *                                                     maximum depth.
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|      * @return Zend_View_Helper_Navigation_HelperAbstract  fluent interface,
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|      *                                                     returns self
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|      */
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|     public function setMaxDepth($maxDepth = null)
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|     {
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|         if (null === $maxDepth || is_int($maxDepth)) {
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|             $this->_maxDepth = $maxDepth;
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|         } else {
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|             $this->_maxDepth = (int) $maxDepth;
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|         }
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|         return $this;
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|     }
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| 
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|     /**
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|      * Returns maximum depth a page can have to be included when rendering
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|      *
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|      * @return int|null  maximum depth or null
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|      */
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|     public function getMaxDepth()
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|     {
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|         return $this->_maxDepth;
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|     }
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| 
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|     /**
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|      * Set the indentation string for using in {@link render()}, optionally a
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|      * number of spaces to indent with
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|      *
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|      * @param  string|int $indent                          indentation string or
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|      *                                                     number of spaces
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|      * @return Zend_View_Helper_Navigation_HelperAbstract  fluent interface,
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|      *                                                     returns self
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|      */
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|     public function setIndent($indent)
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|     {
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|         $this->_indent = $this->_getWhitespace($indent);
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|         return $this;
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|     }
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| 
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|     /**
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|      * Returns indentation (format output is respected)
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|      *
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|      * @return string   indentation string or an empty string
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|      */
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|     public function getIndent()
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|     {
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|         if (false === $this->getFormatOutput()) {
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|             return '';
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|         }
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| 
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|         return $this->_indent;
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|     }
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| 
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|     /**
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|      * Returns the EOL character (format output is respected)
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|      *
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|      * @see self::EOL
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|      * @see getFormatOutput()
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|      *
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|      * @return string       standard EOL charater or an empty string
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|      */
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|     public function getEOL()
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|     {
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|         if (false === $this->getFormatOutput()) {
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|             return '';
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|         }
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| 
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|         return self::EOL;
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|     }
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| 
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|     /**
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|      * Sets whether HTML/XML output should be formatted
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|      *
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|      * @param  bool $formatOutput                   [optional] whether output
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|      *                                              should be formatted. Default
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|      *                                              is true.
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|      *
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|      * @return Zend_View_Helper_Navigation_Sitemap  fluent interface, returns
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|      *                                              self
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|      */
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|     public function setFormatOutput($formatOutput = true)
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|     {
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|         $this->_formatOutput = (bool)$formatOutput;
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| 
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|         return $this;
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|     }
 | |
| 
 | |
|     /**
 | |
|      * Returns whether HTML/XML output should be formatted
 | |
|      *
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|      * @return bool  whether HTML/XML output should be formatted
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|      */
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|     public function getFormatOutput()
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|     {
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|         return $this->_formatOutput;
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|     }
 | |
| 
 | |
|     /**
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|      * Sets prefix for IDs when they are normalized
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|      *
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|      * @param   string $prefix                              Prefix for IDs
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|      * @return  Zend_View_Helper_Navigation_HelperAbstract  fluent interface, returns self
 | |
|      */
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|     public function setPrefixForId($prefix)
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|     {
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|         if (is_string($prefix)) {
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|             $this->_prefixForId = trim($prefix);
 | |
|         }
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| 
 | |
|         return $this;
 | |
|     }
 | |
| 
 | |
|     /**
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|      * Returns prefix for IDs when they are normalized
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|      *
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|      * @return string   Prefix for
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|      */
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|     public function getPrefixForId()
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|     {
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|         if (null === $this->_prefixForId) {
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|             $prefix             = get_class($this);
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|             $this->_prefixForId = strtolower(
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|                     trim(substr($prefix, strrpos($prefix, '_')), '_')
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|                 ) . '-';
 | |
|         }
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| 
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|         return $this->_prefixForId;
 | |
|     }
 | |
| 
 | |
|     /**
 | |
|      * Skip the current prefix for IDs when they are normalized
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|      *
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|      * @param  bool $flag
 | |
|      * @return Zend_View_Helper_Navigation_HelperAbstract  fluent interface, returns self
 | |
|      */
 | |
|     public function skipPrefixForId($flag = true)
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|     {
 | |
|         $this->_skipPrefixForId = (bool) $flag;
 | |
|         return $this;
 | |
|     }
 | |
| 
 | |
|     /**
 | |
|      * Sets translator to use in helper
 | |
|      *
 | |
|      * Implements {@link Zend_View_Helper_Navigation_Helper::setTranslator()}.
 | |
|      *
 | |
|      * @param  mixed $translator                           [optional] translator.
 | |
|      *                                                     Expects an object of
 | |
|      *                                                     type
 | |
|      *                                                     {@link Zend_Translate_Adapter}
 | |
|      *                                                     or {@link Zend_Translate},
 | |
|      *                                                     or null. Default is
 | |
|      *                                                     null, which sets no
 | |
|      *                                                     translator.
 | |
|      * @return Zend_View_Helper_Navigation_HelperAbstract  fluent interface,
 | |
|      *                                                     returns self
 | |
|      */
 | |
|     public function setTranslator($translator = null)
 | |
|     {
 | |
|         if (null == $translator ||
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|             $translator instanceof Zend_Translate_Adapter) {
 | |
|             $this->_translator = $translator;
 | |
|         } elseif ($translator instanceof Zend_Translate) {
 | |
|             $this->_translator = $translator->getAdapter();
 | |
|         }
 | |
| 
 | |
|         return $this;
 | |
|     }
 | |
| 
 | |
|     /**
 | |
|      * Returns translator used in helper
 | |
|      *
 | |
|      * Implements {@link Zend_View_Helper_Navigation_Helper::getTranslator()}.
 | |
|      *
 | |
|      * @return Zend_Translate_Adapter|null  translator or null
 | |
|      */
 | |
|     public function getTranslator()
 | |
|     {
 | |
|         if (null === $this->_translator) {
 | |
|             if (Zend_Registry::isRegistered('Zend_Translate')) {
 | |
|                 $this->setTranslator(Zend_Registry::get('Zend_Translate'));
 | |
|             }
 | |
|         }
 | |
| 
 | |
|         return $this->_translator;
 | |
|     }
 | |
| 
 | |
|     /**
 | |
|      * Sets ACL to use when iterating pages
 | |
|      *
 | |
|      * Implements {@link Zend_View_Helper_Navigation_Helper::setAcl()}.
 | |
|      *
 | |
|      * @param  Zend_Acl $acl                               [optional] ACL object.
 | |
|      *                                                     Default is null.
 | |
|      * @return Zend_View_Helper_Navigation_HelperAbstract  fluent interface,
 | |
|      *                                                     returns self
 | |
|      */
 | |
|     public function setAcl(Zend_Acl $acl = null)
 | |
|     {
 | |
|         $this->_acl = $acl;
 | |
|         return $this;
 | |
|     }
 | |
| 
 | |
|     /**
 | |
|      * Returns ACL or null if it isn't set using {@link setAcl()} or
 | |
|      * {@link setDefaultAcl()}
 | |
|      *
 | |
|      * Implements {@link Zend_View_Helper_Navigation_Helper::getAcl()}.
 | |
|      *
 | |
|      * @return Zend_Acl|null  ACL object or null
 | |
|      */
 | |
|     public function getAcl()
 | |
|     {
 | |
|         if ($this->_acl === null && self::$_defaultAcl !== null) {
 | |
|             return self::$_defaultAcl;
 | |
|         }
 | |
| 
 | |
|         return $this->_acl;
 | |
|     }
 | |
| 
 | |
|     /**
 | |
|      * Sets ACL role(s) to use when iterating pages
 | |
|      *
 | |
|      * Implements {@link Zend_View_Helper_Navigation_Helper::setRole()}.
 | |
|      *
 | |
|      * @param  mixed $role                                 [optional] role to
 | |
|      *                                                     set. Expects a string,
 | |
|      *                                                     an instance of type
 | |
|      *                                                     {@link Zend_Acl_Role_Interface},
 | |
|      *                                                     or null. Default is
 | |
|      *                                                     null, which will set
 | |
|      *                                                     no role.
 | |
|      * @throws Zend_View_Exception                         if $role is invalid
 | |
|      * @return Zend_View_Helper_Navigation_HelperAbstract  fluent interface,
 | |
|      *                                                     returns self
 | |
|      */
 | |
|     public function setRole($role = null)
 | |
|     {
 | |
|         if (null === $role || is_string($role) ||
 | |
|             $role instanceof Zend_Acl_Role_Interface) {
 | |
|             $this->_role = $role;
 | |
|         } else {
 | |
|             $e = new Zend_View_Exception(sprintf(
 | |
|                 '$role must be a string, null, or an instance of '
 | |
|                 .  'Zend_Acl_Role_Interface; %s given',
 | |
|                 gettype($role)
 | |
|             ));
 | |
|             $e->setView($this->view);
 | |
|             throw $e;
 | |
|         }
 | |
| 
 | |
|         return $this;
 | |
|     }
 | |
| 
 | |
|     /**
 | |
|      * Returns ACL role to use when iterating pages, or null if it isn't set
 | |
|      * using {@link setRole()} or {@link setDefaultRole()}
 | |
|      *
 | |
|      * Implements {@link Zend_View_Helper_Navigation_Helper::getRole()}.
 | |
|      *
 | |
|      * @return string|Zend_Acl_Role_Interface|null  role or null
 | |
|      */
 | |
|     public function getRole()
 | |
|     {
 | |
|         if ($this->_role === null && self::$_defaultRole !== null) {
 | |
|             return self::$_defaultRole;
 | |
|         }
 | |
| 
 | |
|         return $this->_role;
 | |
|     }
 | |
| 
 | |
|     /**
 | |
|      * Sets whether ACL should be used
 | |
|      *
 | |
|      * Implements {@link Zend_View_Helper_Navigation_Helper::setUseAcl()}.
 | |
|      *
 | |
|      * @param  bool $useAcl                                [optional] whether ACL
 | |
|      *                                                     should be used.
 | |
|      *                                                     Default is true.
 | |
|      * @return Zend_View_Helper_Navigation_HelperAbstract  fluent interface,
 | |
|      *                                                     returns self
 | |
|      */
 | |
|     public function setUseAcl($useAcl = true)
 | |
|     {
 | |
|         $this->_useAcl = (bool) $useAcl;
 | |
|         return $this;
 | |
|     }
 | |
| 
 | |
|     /**
 | |
|      * Returns whether ACL should be used
 | |
|      *
 | |
|      * Implements {@link Zend_View_Helper_Navigation_Helper::getUseAcl()}.
 | |
|      *
 | |
|      * @return bool  whether ACL should be used
 | |
|      */
 | |
|     public function getUseAcl()
 | |
|     {
 | |
|         return $this->_useAcl;
 | |
|     }
 | |
| 
 | |
|     /**
 | |
|      * Return renderInvisible flag
 | |
|      *
 | |
|      * @return bool
 | |
|      */
 | |
|     public function getRenderInvisible()
 | |
|     {
 | |
|         return $this->_renderInvisible;
 | |
|     }
 | |
| 
 | |
|     /**
 | |
|      * Render invisible items?
 | |
|      *
 | |
|      * @param  bool $renderInvisible                       [optional] boolean flag
 | |
|      * @return Zend_View_Helper_Navigation_HelperAbstract  fluent interface
 | |
|      *                                                     returns self
 | |
|      */
 | |
|     public function setRenderInvisible($renderInvisible = true)
 | |
|     {
 | |
|         $this->_renderInvisible = (bool) $renderInvisible;
 | |
|         return $this;
 | |
|     }
 | |
| 
 | |
|     /**
 | |
|      * Sets whether translator should be used
 | |
|      *
 | |
|      * Implements {@link Zend_View_Helper_Navigation_Helper::setUseTranslator()}.
 | |
|      *
 | |
|      * @param  bool $useTranslator                         [optional] whether
 | |
|      *                                                     translator should be
 | |
|      *                                                     used. Default is true.
 | |
|      * @return Zend_View_Helper_Navigation_HelperAbstract  fluent interface,
 | |
|      *                                                     returns self
 | |
|      */
 | |
|     public function setUseTranslator($useTranslator = true)
 | |
|     {
 | |
|         $this->_useTranslator = (bool) $useTranslator;
 | |
|         return $this;
 | |
|     }
 | |
| 
 | |
|     /**
 | |
|      * Returns whether translator should be used
 | |
|      *
 | |
|      * Implements {@link Zend_View_Helper_Navigation_Helper::getUseTranslator()}.
 | |
|      *
 | |
|      * @return bool  whether translator should be used
 | |
|      */
 | |
|     public function getUseTranslator()
 | |
|     {
 | |
|         return $this->_useTranslator;
 | |
|     }
 | |
| 
 | |
|     // Magic overloads:
 | |
| 
 | |
|     /**
 | |
|      * Magic overload: Proxy calls to the navigation container
 | |
|      *
 | |
|      * @param  string $method             method name in container
 | |
|      * @param  array  $arguments          [optional] arguments to pass
 | |
|      * @return mixed                      returns what the container returns
 | |
|      * @throws Zend_Navigation_Exception  if method does not exist in container
 | |
|      */
 | |
|     public function __call($method, array $arguments = array())
 | |
|     {
 | |
|         return call_user_func_array(
 | |
|                 array($this->getContainer(), $method),
 | |
|                 $arguments);
 | |
|     }
 | |
| 
 | |
|     /**
 | |
|      * Magic overload: Proxy to {@link render()}.
 | |
|      *
 | |
|      * This method will trigger an E_USER_ERROR if rendering the helper causes
 | |
|      * an exception to be thrown.
 | |
|      *
 | |
|      * Implements {@link Zend_View_Helper_Navigation_Helper::__toString()}.
 | |
|      *
 | |
|      * @return string
 | |
|      */
 | |
|     public function __toString()
 | |
|     {
 | |
|         try {
 | |
|             return $this->render();
 | |
|         } catch (Exception $e) {
 | |
|             $msg = get_class($e) . ': ' . $e->getMessage();
 | |
|             trigger_error($msg, E_USER_ERROR);
 | |
|             return '';
 | |
|         }
 | |
|     }
 | |
| 
 | |
|     // Public methods:
 | |
| 
 | |
|     /**
 | |
|      * Finds the deepest active page in the given container
 | |
|      *
 | |
|      * @param  Zend_Navigation_Container $container  container to search
 | |
|      * @param  int|null                  $minDepth   [optional] minimum depth
 | |
|      *                                               required for page to be
 | |
|      *                                               valid. Default is to use
 | |
|      *                                               {@link getMinDepth()}. A
 | |
|      *                                               null value means no minimum
 | |
|      *                                               depth required.
 | |
|      * @param  int|null                  $minDepth   [optional] maximum depth
 | |
|      *                                               a page can have to be
 | |
|      *                                               valid. Default is to use
 | |
|      *                                               {@link getMaxDepth()}. A
 | |
|      *                                               null value means no maximum
 | |
|      *                                               depth required.
 | |
|      * @return array                                 an associative array with
 | |
|      *                                               the values 'depth' and
 | |
|      *                                               'page', or an empty array
 | |
|      *                                               if not found
 | |
|      */
 | |
|     public function findActive(Zend_Navigation_Container $container,
 | |
|                                $minDepth = null,
 | |
|                                $maxDepth = -1)
 | |
|     {
 | |
|         if (!is_int($minDepth)) {
 | |
|             $minDepth = $this->getMinDepth();
 | |
|         }
 | |
|         if ((!is_int($maxDepth) || $maxDepth < 0) && null !== $maxDepth) {
 | |
|             $maxDepth = $this->getMaxDepth();
 | |
|         }
 | |
| 
 | |
|         $found  = null;
 | |
|         $foundDepth = -1;
 | |
|         $iterator = new RecursiveIteratorIterator($container,
 | |
|                 RecursiveIteratorIterator::CHILD_FIRST);
 | |
| 
 | |
|         foreach ($iterator as $page) {
 | |
|             $currDepth = $iterator->getDepth();
 | |
|             if ($currDepth < $minDepth || !$this->accept($page)) {
 | |
|                 // page is not accepted
 | |
|                 continue;
 | |
|             }
 | |
| 
 | |
|             if ($page->isActive(false) && $currDepth > $foundDepth) {
 | |
|                 // found an active page at a deeper level than before
 | |
|                 $found = $page;
 | |
|                 $foundDepth = $currDepth;
 | |
|             }
 | |
|         }
 | |
| 
 | |
|         if (is_int($maxDepth) && $foundDepth > $maxDepth) {
 | |
|             while ($foundDepth > $maxDepth) {
 | |
|                 if (--$foundDepth < $minDepth) {
 | |
|                     $found = null;
 | |
|                     break;
 | |
|                 }
 | |
| 
 | |
|                 $found = $found->getParent();
 | |
|                 if (!$found instanceof Zend_Navigation_Page) {
 | |
|                     $found = null;
 | |
|                     break;
 | |
|                 }
 | |
|             }
 | |
|         }
 | |
| 
 | |
|         if ($found) {
 | |
|             return array('page' => $found, 'depth' => $foundDepth);
 | |
|         } else {
 | |
|             return array();
 | |
|         }
 | |
|     }
 | |
| 
 | |
|     /**
 | |
|      * Checks if the helper has a container
 | |
|      *
 | |
|      * Implements {@link Zend_View_Helper_Navigation_Helper::hasContainer()}.
 | |
|      *
 | |
|      * @return bool  whether the helper has a container or not
 | |
|      */
 | |
|     public function hasContainer()
 | |
|     {
 | |
|         return null !== $this->_container;
 | |
|     }
 | |
| 
 | |
|     /**
 | |
|      * Checks if the helper has an ACL instance
 | |
|      *
 | |
|      * Implements {@link Zend_View_Helper_Navigation_Helper::hasAcl()}.
 | |
|      *
 | |
|      * @return bool  whether the helper has a an ACL instance or not
 | |
|      */
 | |
|     public function hasAcl()
 | |
|     {
 | |
|         return null !== $this->_acl;
 | |
|     }
 | |
| 
 | |
|     /**
 | |
|      * Checks if the helper has an ACL role
 | |
|      *
 | |
|      * Implements {@link Zend_View_Helper_Navigation_Helper::hasRole()}.
 | |
|      *
 | |
|      * @return bool  whether the helper has a an ACL role or not
 | |
|      */
 | |
|     public function hasRole()
 | |
|     {
 | |
|         return null !== $this->_role;
 | |
|     }
 | |
| 
 | |
|     /**
 | |
|      * Checks if the helper has a translator
 | |
|      *
 | |
|      * Implements {@link Zend_View_Helper_Navigation_Helper::hasTranslator()}.
 | |
|      *
 | |
|      * @return bool  whether the helper has a translator or not
 | |
|      */
 | |
|     public function hasTranslator()
 | |
|     {
 | |
|         return null !== $this->_translator;
 | |
|     }
 | |
| 
 | |
|     /**
 | |
|      * Returns an HTML string containing an 'a' element for the given page
 | |
|      *
 | |
|      * @param  Zend_Navigation_Page $page  page to generate HTML for
 | |
|      * @return string                      HTML string for the given page
 | |
|      */
 | |
|     public function htmlify(Zend_Navigation_Page $page)
 | |
|     {
 | |
|         // get label and title for translating
 | |
|         $label = $page->getLabel();
 | |
|         $title = $page->getTitle();
 | |
| 
 | |
|         if ($this->getUseTranslator() && $t = $this->getTranslator()) {
 | |
|             if (is_string($label) && !empty($label)) {
 | |
|                 $label = $t->translate($label);
 | |
|             }
 | |
|             if (is_string($title) && !empty($title)) {
 | |
|                 $title = $t->translate($title);
 | |
|             }
 | |
|         }
 | |
| 
 | |
|         // get attribs for anchor element
 | |
|         $attribs = array_merge(
 | |
|             array(
 | |
|                 'id'     => $page->getId(),
 | |
|                 'title'  => $title,
 | |
|                 'class'  => $page->getClass(),
 | |
|                 'href'   => $page->getHref(),
 | |
|                 'target' => $page->getTarget()
 | |
|             ),
 | |
|             $page->getCustomHtmlAttribs()
 | |
|         );
 | |
| 
 | |
|         return '<a' . $this->_htmlAttribs($attribs) . '>'
 | |
|              . $this->view->escape($label)
 | |
|              . '</a>';
 | |
|     }
 | |
| 
 | |
|     // Iterator filter methods:
 | |
| 
 | |
|     /**
 | |
|      * Determines whether a page should be accepted when iterating
 | |
|      *
 | |
|      * Rules:
 | |
|      * - If a page is not visible it is not accepted, unless RenderInvisible has
 | |
|      *   been set to true.
 | |
|      * - If helper has no ACL, page is accepted
 | |
|      * - If helper has ACL, but no role, page is not accepted
 | |
|      * - If helper has ACL and role:
 | |
|      *  - Page is accepted if it has no resource or privilege
 | |
|      *  - Page is accepted if ACL allows page's resource or privilege
 | |
|      * - If page is accepted by the rules above and $recursive is true, the page
 | |
|      *   will not be accepted if it is the descendant of a non-accepted page.
 | |
|      *
 | |
|      * @param  Zend_Navigation_Page $page      page to check
 | |
|      * @param  bool                $recursive  [optional] if true, page will not
 | |
|      *                                         be accepted if it is the
 | |
|      *                                         descendant of a page that is not
 | |
|      *                                         accepted. Default is true.
 | |
|      * @return bool                            whether page should be accepted
 | |
|      */
 | |
|     public function accept(Zend_Navigation_Page $page, $recursive = true)
 | |
|     {
 | |
|         // accept by default
 | |
|         $accept = true;
 | |
| 
 | |
|         if (!$page->isVisible(false) && !$this->getRenderInvisible()) {
 | |
|             // don't accept invisible pages
 | |
|             $accept = false;
 | |
|         } elseif ($this->getUseAcl() && !$this->_acceptAcl($page)) {
 | |
|             // acl is not amused
 | |
|             $accept = false;
 | |
|         }
 | |
| 
 | |
|         if ($accept && $recursive) {
 | |
|             $parent = $page->getParent();
 | |
|             if ($parent instanceof Zend_Navigation_Page) {
 | |
|                 $accept = $this->accept($parent, true);
 | |
|             }
 | |
|         }
 | |
| 
 | |
|         return $accept;
 | |
|     }
 | |
| 
 | |
|     /**
 | |
|      * Determines whether a page should be accepted by ACL when iterating
 | |
|      *
 | |
|      * Rules:
 | |
|      * - If helper has no ACL, page is accepted
 | |
|      * - If page has a resource or privilege defined, page is accepted
 | |
|      *   if the ACL allows access to it using the helper's role
 | |
|      * - If page has no resource or privilege, page is accepted
 | |
|      *
 | |
|      * @param  Zend_Navigation_Page $page  page to check
 | |
|      * @return bool                        whether page is accepted by ACL
 | |
|      */
 | |
|     protected function _acceptAcl(Zend_Navigation_Page $page)
 | |
|     {
 | |
|         if (!$acl = $this->getAcl()) {
 | |
|             // no acl registered means don't use acl
 | |
|             return true;
 | |
|         }
 | |
| 
 | |
|         $role = $this->getRole();
 | |
|         $resource = $page->getResource();
 | |
|         $privilege = $page->getPrivilege();
 | |
| 
 | |
|         if ($resource || $privilege) {
 | |
|             // determine using helper role and page resource/privilege
 | |
|             return $acl->isAllowed($role, $resource, $privilege);
 | |
|         }
 | |
| 
 | |
|         return true;
 | |
|     }
 | |
| 
 | |
|     // Util methods:
 | |
| 
 | |
|     /**
 | |
|      * Retrieve whitespace representation of $indent
 | |
|      *
 | |
|      * @param  int|string $indent
 | |
|      * @return string
 | |
|      */
 | |
|     protected function _getWhitespace($indent)
 | |
|     {
 | |
|         if (is_int($indent)) {
 | |
|             $indent = str_repeat(' ', $indent);
 | |
|         }
 | |
| 
 | |
|         return (string) $indent;
 | |
|     }
 | |
| 
 | |
|     /**
 | |
|      * Converts an associative array to a string of tag attributes.
 | |
|      *
 | |
|      * Overloads {@link Zend_View_Helper_HtmlElement::_htmlAttribs()}.
 | |
|      *
 | |
|      * @param  array $attribs  an array where each key-value pair is converted
 | |
|      *                         to an attribute name and value
 | |
|      * @return string          an attribute string
 | |
|      */
 | |
|     protected function _htmlAttribs($attribs)
 | |
|     {
 | |
|         // filter out null values and empty string values
 | |
|         foreach ($attribs as $key => $value) {
 | |
|             if ($value === null || (is_string($value) && !strlen($value))) {
 | |
|                 unset($attribs[$key]);
 | |
|             }
 | |
|         }
 | |
| 
 | |
|         return parent::_htmlAttribs($attribs);
 | |
|     }
 | |
| 
 | |
|     /**
 | |
|      * Normalize an ID
 | |
|      *
 | |
|      * Extends {@link Zend_View_Helper_HtmlElement::_normalizeId()}.
 | |
|      *
 | |
|      * @param  string $value    ID
 | |
|      * @return string           Normalized ID
 | |
|      */
 | |
|     protected function _normalizeId($value)
 | |
|     {        
 | |
|         if (false === $this->_skipPrefixForId) {
 | |
|             $prefix = $this->getPrefixForId();
 | |
| 
 | |
|             if (strlen($prefix)) {
 | |
|                 return $prefix . $value;
 | |
|             }
 | |
|         }
 | |
| 
 | |
|         return parent::_normalizeId($value);
 | |
|     }
 | |
| 
 | |
|     // Static methods:
 | |
| 
 | |
|     /**
 | |
|      * Sets default ACL to use if another ACL is not explicitly set
 | |
|      *
 | |
|      * @param  Zend_Acl $acl  [optional] ACL object. Default is null, which
 | |
|      *                        sets no ACL object.
 | |
|      * @return void
 | |
|      */
 | |
|     public static function setDefaultAcl(Zend_Acl $acl = null)
 | |
|     {
 | |
|         self::$_defaultAcl = $acl;
 | |
|     }
 | |
| 
 | |
|     /**
 | |
|      * Sets default ACL role(s) to use when iterating pages if not explicitly
 | |
|      * set later with {@link setRole()}
 | |
|      *
 | |
|      * @param  midex $role               [optional] role to set. Expects null,
 | |
|      *                                   string, or an instance of
 | |
|      *                                   {@link Zend_Acl_Role_Interface}.
 | |
|      *                                   Default is null, which sets no default
 | |
|      *                                   role.
 | |
|      * @throws Zend_View_Exception       if role is invalid
 | |
|      * @return void
 | |
|      */
 | |
|     public static function setDefaultRole($role = null)
 | |
|     {
 | |
|         if (null === $role ||
 | |
|             is_string($role) ||
 | |
|             $role instanceof Zend_Acl_Role_Interface) {
 | |
|             self::$_defaultRole = $role;
 | |
|         } else {
 | |
|             throw new Zend_View_Exception(
 | |
|                 '$role must be null|string|Zend_Acl_Role_Interface'
 | |
|             );
 | |
|         }
 | |
|     }
 | |
| }
 |