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326 lines
11 KiB
PHTML
326 lines
11 KiB
PHTML
15 years ago
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<?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) 2005-2009 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: Breadcrumbs.php 16971 2009-07-22 18:05:45Z mikaelkael $
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*/
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/**
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* @see Zend_View_Helper_Navigation_HelperAbstract
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*/
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require_once 'Zend/View/Helper/Navigation/HelperAbstract.php';
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/**
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* Helper for printing breadcrumbs
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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) 2005-2009 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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class Zend_View_Helper_Navigation_Breadcrumbs
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extends Zend_View_Helper_Navigation_HelperAbstract
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{
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/**
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* Breadcrumbs separator string
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*
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* @var string
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*/
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protected $_separator = ' > ';
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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 = 1;
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/**
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* Whether last page in breadcrumb should be hyperlinked
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*
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* @var bool
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*/
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protected $_linkLast = false;
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/**
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* Partial view script to use for rendering menu
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*
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* @var string|array
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*/
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protected $_partial;
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/**
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* View helper entry point:
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* Retrieves helper and optionally sets container to operate on
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*
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* @param Zend_Navigation_Container $container [optional] container to
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* operate on
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* @return Zend_View_Helper_Navigation_Breadcrumbs fluent interface,
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* returns self
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*/
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public function breadcrumbs(Zend_Navigation_Container $container = null)
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{
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if (null !== $container) {
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$this->setContainer($container);
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}
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return $this;
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}
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// Accessors:
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/**
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* Sets breadcrumb separator
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*
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* @param string $separator separator string
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* @return Zend_View_Helper_Navigation_Breadcrumbs fluent interface,
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* returns self
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*/
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public function setSeparator($separator)
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{
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if (is_string($separator)) {
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$this->_separator = $separator;
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}
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return $this;
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}
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/**
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* Returns breadcrumb separator
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*
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* @return string breadcrumb separator
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*/
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public function getSeparator()
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{
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return $this->_separator;
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}
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/**
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* Sets whether last page in breadcrumbs should be hyperlinked
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*
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* @param bool $linkLast whether last page should
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* be hyperlinked
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* @return Zend_View_Helper_Navigation_Breadcrumbs fluent interface,
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* returns self
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*/
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public function setLinkLast($linkLast)
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{
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$this->_linkLast = (bool) $linkLast;
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return $this;
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}
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/**
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* Returns whether last page in breadcrumbs should be hyperlinked
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*
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* @return bool whether last page in breadcrumbs should be hyperlinked
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*/
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public function getLinkLast()
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{
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return $this->_linkLast;
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}
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/**
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* Sets which partial view script to use for rendering menu
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*
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* @param string|array $partial partial view script or
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* null. If an array is
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* given, it is expected to
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* contain two values;
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* the partial view script
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* to use, and the module
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* where the script can be
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* found.
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* @return Zend_View_Helper_Navigation_Breadcrumbs fluent interface,
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* returns self
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*/
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public function setPartial($partial)
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{
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if (null === $partial || is_string($partial) || is_array($partial)) {
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$this->_partial = $partial;
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}
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return $this;
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}
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/**
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* Returns partial view script to use for rendering menu
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*
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* @return string|array|null
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*/
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public function getPartial()
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{
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return $this->_partial;
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}
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// Render methods:
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/**
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* Renders breadcrumbs by chaining 'a' elements with the separator
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* registered in the helper
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*
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* @param Zend_Navigation_Container $container [optional] container to
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* render. Default is to
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* render the container
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* registered in the helper.
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* @return string helper output
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*/
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public function renderStraight(Zend_Navigation_Container $container = null)
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{
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if (null === $container) {
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$container = $this->getContainer();
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}
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// find deepest active
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if (!$active = $this->findActive($container)) {
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return '';
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}
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$active = $active['page'];
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// put the deepest active page last in breadcrumbs
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if ($this->getLinkLast()) {
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$html = $this->htmlify($active);
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} else {
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$html = $active->getLabel();
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if ($this->getUseTranslator() && $t = $this->getTranslator()) {
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$html = $t->translate($html);
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}
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$html = $this->view->escape($html);
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}
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// walk back to root
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while ($parent = $active->getParent()) {
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if ($parent instanceof Zend_Navigation_Page) {
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// prepend crumb to html
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$html = $this->htmlify($parent)
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. $this->getSeparator()
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. $html;
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}
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if ($parent === $container) {
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// at the root of the given container
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break;
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}
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$active = $parent;
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}
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return strlen($html) ? $this->getIndent() . $html : '';
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}
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/**
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* Renders the given $container by invoking the partial view helper
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*
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* The container will simply be passed on as a model to the view script,
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* so in the script it will be available in <code>$this->container</code>.
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*
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* @param Zend_Navigation_Container $container [optional] container to
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* pass to view script.
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* Default is to use the
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* container registered in the
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* helper.
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* @param string|array $partial [optional] partial view
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* script to use. Default is
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* to use the partial
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* registered in the helper.
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* If an array is given, it is
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* expected to contain two
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* values; the partial view
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* script to use, and the
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* module where the script can
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* be found.
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* @return string helper output
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*/
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public function renderPartial(Zend_Navigation_Container $container = null,
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$partial = null)
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{
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if (null === $container) {
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$container = $this->getContainer();
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}
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if (null === $partial) {
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$partial = $this->getPartial();
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}
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if (empty($partial)) {
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require_once 'Zend/View/Exception.php';
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throw new Zend_View_Exception(
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'Unable to render menu: No partial view script provided');
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}
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// put breadcrumb pages in model
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$model = array('pages' => array());
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if ($active = $this->findActive($container)) {
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$active = $active['page'];
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$model['pages'][] = $active;
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while ($parent = $active->getParent()) {
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if ($parent instanceof Zend_Navigation_Page) {
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$model['pages'][] = $parent;
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} else {
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break;
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}
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if ($parent === $container) {
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// break if at the root of the given container
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break;
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}
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$active = $parent;
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}
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$model['pages'] = array_reverse($model['pages']);
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}
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if (is_array($partial)) {
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if (count($partial) != 2) {
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require_once 'Zend/View/Exception.php';
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throw new Zend_View_Exception(
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'Unable to render menu: A view partial supplied as ' .
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'an array must contain two values: partial view ' .
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'script and module where script can be found');
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}
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return $this->view->partial($partial[0], $partial[1], $model);
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}
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return $this->view->partial($partial, null, $model);
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}
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// Zend_View_Helper_Navigation_Helper:
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/**
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* Renders helper
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*
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* Implements {@link Zend_View_Helper_Navigation_Helper::render()}.
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*
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* @param Zend_Navigation_Container $container [optional] container to
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* render. Default is to
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* render the container
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* registered in the helper.
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* @return string helper output
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*/
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public function render(Zend_Navigation_Container $container = null)
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{
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if ($partial = $this->getPartial()) {
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return $this->renderPartial($container, $partial);
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} else {
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return $this->renderStraight($container);
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}
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}
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}
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