CommunityID/libs/Zend/View/Helper/Navigation.php

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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
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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: Navigation.php 16971 2009-07-22 18:05:45Z mikaelkael $
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*/
/**
* @see Zend_View_Helper_Navigation_HelperAbstract
*/
require_once 'Zend/View/Helper/Navigation/HelperAbstract.php';
/**
* Proxy helper for retrieving navigational helpers and forwarding calls
*
* @category Zend
* @package Zend_View
* @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
*/
class Zend_View_Helper_Navigation
extends Zend_View_Helper_Navigation_HelperAbstract
{
/**
* View helper namespace
*
* @var string
*/
const NS = 'Zend_View_Helper_Navigation';
/**
* Default proxy to use in {@link render()}
*
* @var string
*/
protected $_defaultProxy = 'menu';
/**
* Contains references to proxied helpers
*
* @var array
*/
protected $_helpers = array();
/**
* Whether container should be injected when proxying
*
* @var bool
*/
protected $_injectContainer = true;
/**
* Whether ACL should be injected when proxying
*
* @var bool
*/
protected $_injectAcl = true;
/**
* Whether translator should be injected when proxying
*
* @var bool
*/
protected $_injectTranslator = true;
/**
* Helper entry point
*
* @param Zend_Navigation_Container $container [optional] container to
* operate on
* @return Zend_View_Helper_Navigation fluent interface, returns
* self
*/
public function navigation(Zend_Navigation_Container $container = null)
{
if (null !== $container) {
$this->setContainer($container);
}
return $this;
}
/**
* Magic overload: Proxy to other navigation helpers or the container
*
* Examples of usage from a view script or layout:
* <code>
* // proxy to Menu helper and render container:
* echo $this->navigation()->menu();
*
* // proxy to Breadcrumbs helper and set indentation:
* $this->navigation()->breadcrumbs()->setIndent(8);
*
* // proxy to container and find all pages with 'blog' route:
* $blogPages = $this->navigation()->findAllByRoute('blog');
* </code>
*
* @param string $method helper name or method name in
* container
* @param array $arguments [optional] arguments to pass
* @return mixed returns what the proxied call returns
* @throws Zend_View_Exception if proxying to a helper, and the
* helper is not an instance of the
* interface specified in
* {@link findHelper()}
* @throws Zend_Navigation_Exception if method does not exist in container
*/
public function __call($method, array $arguments = array())
{
// check if call should proxy to another helper
if ($helper = $this->findHelper($method, false)) {
return call_user_func_array(array($helper, $method), $arguments);
}
// default behaviour: proxy call to container
return parent::__call($method, $arguments);
}
/**
* Returns the helper matching $proxy
*
* The helper must implement the interface
* {@link Zend_View_Helper_Navigation_Helper}.
*
* @param string $proxy helper name
* @param bool $strict [optional] whether
* exceptions should be
* thrown if something goes
* wrong. Default is true.
* @return Zend_View_Helper_Navigation_Helper helper instance
* @throws Zend_Loader_PluginLoader_Exception if $strict is true and
* helper cannot be found
* @throws Zend_View_Exception if $strict is true and
* helper does not implement
* the specified interface
*/
public function findHelper($proxy, $strict = true)
{
if (isset($this->_helpers[$proxy])) {
return $this->_helpers[$proxy];
}
if (!$this->view->getPluginLoader('helper')->getPaths(self::NS)) {
$this->view->addHelperPath(
str_replace('_', '/', self::NS),
self::NS);
}
if ($strict) {
$helper = $this->view->getHelper($proxy);
} else {
try {
$helper = $this->view->getHelper($proxy);
} catch (Zend_Loader_PluginLoader_Exception $e) {
return null;
}
}
if (!$helper instanceof Zend_View_Helper_Navigation_Helper) {
if ($strict) {
require_once 'Zend/View/Exception.php';
throw new Zend_View_Exception(sprintf(
'Proxy helper "%s" is not an instance of ' .
'Zend_View_Helper_Navigation_Helper',
get_class($helper)));
}
return null;
}
$this->_inject($helper);
$this->_helpers[$proxy] = $helper;
return $helper;
}
/**
* Injects container, ACL, and translator to the given $helper if this
* helper is configured to do so
*
* @param Zend_View_Helper_Navigation_Helper $helper helper instance
* @return void
*/
protected function _inject(Zend_View_Helper_Navigation_Helper $helper)
{
if ($this->getInjectContainer() && !$helper->hasContainer()) {
$helper->setContainer($this->getContainer());
}
if ($this->getInjectAcl()) {
if (!$helper->hasAcl()) {
$helper->setAcl($this->getAcl());
}
if (!$helper->hasRole()) {
$helper->setRole($this->getRole());
}
}
if ($this->getInjectTranslator() && !$helper->hasTranslator()) {
$helper->setTranslator($this->getTranslator());
}
}
// Accessors:
/**
* Sets the default proxy to use in {@link render()}
*
* @param string $proxy default proxy
* @return Zend_View_Helper_Navigation fluent interface, returns self
*/
public function setDefaultProxy($proxy)
{
$this->_defaultProxy = (string) $proxy;
return $this;
}
/**
* Returns the default proxy to use in {@link render()}
*
* @return string the default proxy to use in {@link render()}
*/
public function getDefaultProxy()
{
return $this->_defaultProxy;
}
/**
* Sets whether container should be injected when proxying
*
* @param bool $injectContainer [optional] whether container should
* be injected when proxying. Default
* is true.
* @return Zend_View_Helper_Navigation fluent interface, returns self
*/
public function setInjectContainer($injectContainer = true)
{
$this->_injectContainer = (bool) $injectContainer;
return $this;
}
/**
* Returns whether container should be injected when proxying
*
* @return bool whether container should be injected when proxying
*/
public function getInjectContainer()
{
return $this->_injectContainer;
}
/**
* Sets whether ACL should be injected when proxying
*
* @param bool $injectAcl [optional] whether ACL should be
* injected when proxying. Default is
* true.
* @return Zend_View_Helper_Navigation fluent interface, returns self
*/
public function setInjectAcl($injectAcl = true)
{
$this->_injectAcl = (bool) $injectAcl;
return $this;
}
/**
* Returns whether ACL should be injected when proxying
*
* @return bool whether ACL should be injected when proxying
*/
public function getInjectAcl()
{
return $this->_injectAcl;
}
/**
* Sets whether translator should be injected when proxying
*
* @param bool $injectTranslator [optional] whether translator should
* be injected when proxying. Default
* is true.
* @return Zend_View_Helper_Navigation fluent interface, returns self
*/
public function setInjectTranslator($injectTranslator = true)
{
$this->_injectTranslator = (bool) $injectTranslator;
return $this;
}
/**
* Returns whether translator should be injected when proxying
*
* @return bool whether translator should be injected when proxying
*/
public function getInjectTranslator()
{
return $this->_injectTranslator;
}
// Zend_View_Helper_Navigation_Helper:
/**
* Renders helper
*
* @param Zend_Navigation_Container $container [optional] container to
* render. Default is to
* render the container
* registered in the helper.
* @return string helper output
* @throws Zend_Loader_PluginLoader_Exception if helper cannot be found
* @throws Zend_View_Exception if helper doesn't implement
* the interface specified in
* {@link findHelper()}
*/
public function render(Zend_Navigation_Container $container = null)
{
$helper = $this->findHelper($this->getDefaultProxy());
return $helper->render($container);
}
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}