798 Zeilen
18 KiB
PHP
798 Zeilen
18 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_Layout
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* @copyright Copyright (c) 2005-2011 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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* Provide Layout support for MVC applications
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*
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* @category Zend
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* @package Zend_Layout
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* @copyright Copyright (c) 2005-2011 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_Layout
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{
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/**
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* Placeholder container for layout variables
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* @var Zend_View_Helper_Placeholder_Container
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*/
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protected $_container;
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/**
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* Key used to store content from 'default' named response segment
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* @var string
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*/
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protected $_contentKey = 'content';
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/**
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* Are layouts enabled?
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* @var bool
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*/
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protected $_enabled = true;
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/**
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* Helper class
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* @var string
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*/
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protected $_helperClass = 'Zend_Layout_Controller_Action_Helper_Layout';
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/**
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* Inflector used to resolve layout script
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* @var Zend_Filter_Inflector
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*/
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protected $_inflector;
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/**
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* Flag: is inflector enabled?
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* @var bool
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*/
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protected $_inflectorEnabled = true;
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/**
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* Inflector target
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* @var string
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*/
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protected $_inflectorTarget = ':script.:suffix';
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/**
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* Layout view
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* @var string
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*/
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protected $_layout = 'layout';
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/**
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* Layout view script path
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* @var string
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*/
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protected $_viewScriptPath = null;
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protected $_viewBasePath = null;
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protected $_viewBasePrefix = 'Layout_View';
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/**
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* Flag: is MVC integration enabled?
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* @var bool
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*/
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protected $_mvcEnabled = true;
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/**
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* Instance registered with MVC, if any
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* @var Zend_Layout
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*/
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protected static $_mvcInstance;
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/**
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* Flag: is MVC successful action only flag set?
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* @var bool
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*/
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protected $_mvcSuccessfulActionOnly = true;
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/**
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* Plugin class
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* @var string
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*/
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protected $_pluginClass = 'Zend_Layout_Controller_Plugin_Layout';
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/**
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* @var Zend_View_Interface
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*/
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protected $_view;
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/**
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* View script suffix for layout script
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* @var string
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*/
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protected $_viewSuffix = 'phtml';
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/**
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* Constructor
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*
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* Accepts either:
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* - A string path to layouts
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* - An array of options
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* - A Zend_Config object with options
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*
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* Layout script path, either as argument or as key in options, is
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* required.
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*
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* If mvcEnabled flag is false from options, simply sets layout script path.
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* Otherwise, also instantiates and registers action helper and controller
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* plugin.
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*
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* @param string|array|Zend_Config $options
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* @return void
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*/
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public function __construct($options = null, $initMvc = false)
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{
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if (null !== $options) {
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if (is_string($options)) {
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$this->setLayoutPath($options);
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} elseif (is_array($options)) {
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$this->setOptions($options);
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} elseif ($options instanceof Zend_Config) {
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$this->setConfig($options);
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} else {
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require_once 'Zend/Layout/Exception.php';
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throw new Zend_Layout_Exception('Invalid option provided to constructor');
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}
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}
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$this->_initVarContainer();
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if ($initMvc) {
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$this->_setMvcEnabled(true);
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$this->_initMvc();
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} else {
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$this->_setMvcEnabled(false);
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}
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}
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/**
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* Static method for initialization with MVC support
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*
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* @param string|array|Zend_Config $options
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* @return Zend_Layout
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*/
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public static function startMvc($options = null)
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{
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if (null === self::$_mvcInstance) {
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self::$_mvcInstance = new self($options, true);
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}
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if (is_string($options)) {
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self::$_mvcInstance->setLayoutPath($options);
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} elseif (is_array($options) || $options instanceof Zend_Config) {
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self::$_mvcInstance->setOptions($options);
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}
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return self::$_mvcInstance;
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}
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/**
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* Retrieve MVC instance of Zend_Layout object
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*
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* @return Zend_Layout|null
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*/
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public static function getMvcInstance()
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{
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return self::$_mvcInstance;
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}
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/**
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* Reset MVC instance
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*
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* Unregisters plugins and helpers, and destroys MVC layout instance.
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*
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* @return void
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*/
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public static function resetMvcInstance()
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{
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if (null !== self::$_mvcInstance) {
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$layout = self::$_mvcInstance;
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$pluginClass = $layout->getPluginClass();
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$front = Zend_Controller_Front::getInstance();
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if ($front->hasPlugin($pluginClass)) {
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$front->unregisterPlugin($pluginClass);
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}
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if (Zend_Controller_Action_HelperBroker::hasHelper('layout')) {
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Zend_Controller_Action_HelperBroker::removeHelper('layout');
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}
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unset($layout);
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self::$_mvcInstance = null;
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}
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}
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/**
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* Set options en masse
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*
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* @param array|Zend_Config $options
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* @return void
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*/
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public function setOptions($options)
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{
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if ($options instanceof Zend_Config) {
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$options = $options->toArray();
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} elseif (!is_array($options)) {
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require_once 'Zend/Layout/Exception.php';
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throw new Zend_Layout_Exception('setOptions() expects either an array or a Zend_Config object');
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}
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foreach ($options as $key => $value) {
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$method = 'set' . ucfirst($key);
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if (method_exists($this, $method)) {
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$this->$method($value);
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}
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}
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}
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/**
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* Initialize MVC integration
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*
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* @return void
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*/
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protected function _initMvc()
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{
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$this->_initPlugin();
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$this->_initHelper();
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}
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/**
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* Initialize front controller plugin
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*
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* @return void
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*/
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protected function _initPlugin()
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{
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$pluginClass = $this->getPluginClass();
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require_once 'Zend/Controller/Front.php';
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$front = Zend_Controller_Front::getInstance();
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if (!$front->hasPlugin($pluginClass)) {
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if (!class_exists($pluginClass)) {
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require_once 'Zend/Loader.php';
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Zend_Loader::loadClass($pluginClass);
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}
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$front->registerPlugin(
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// register to run last | BUT before the ErrorHandler (if its available)
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new $pluginClass($this),
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99
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);
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}
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}
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/**
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* Initialize action helper
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*
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* @return void
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*/
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protected function _initHelper()
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{
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$helperClass = $this->getHelperClass();
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require_once 'Zend/Controller/Action/HelperBroker.php';
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if (!Zend_Controller_Action_HelperBroker::hasHelper('layout')) {
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if (!class_exists($helperClass)) {
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require_once 'Zend/Loader.php';
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Zend_Loader::loadClass($helperClass);
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}
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Zend_Controller_Action_HelperBroker::getStack()->offsetSet(-90, new $helperClass($this));
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}
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}
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/**
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* Set options from a config object
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*
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* @param Zend_Config $config
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* @return Zend_Layout
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*/
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public function setConfig(Zend_Config $config)
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{
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$this->setOptions($config->toArray());
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return $this;
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}
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/**
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* Initialize placeholder container for layout vars
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*
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* @return Zend_View_Helper_Placeholder_Container
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*/
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protected function _initVarContainer()
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{
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if (null === $this->_container) {
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require_once 'Zend/View/Helper/Placeholder/Registry.php';
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$this->_container = Zend_View_Helper_Placeholder_Registry::getRegistry()->getContainer(__CLASS__);
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}
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return $this->_container;
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}
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/**
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* Set layout script to use
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*
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* Note: enables layout by default, can be disabled
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*
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* @param string $name
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* @param boolean $enabled
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* @return Zend_Layout
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*/
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public function setLayout($name, $enabled = true)
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{
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$this->_layout = (string) $name;
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if ($enabled) {
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$this->enableLayout();
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}
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return $this;
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}
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/**
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* Get current layout script
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*
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* @return string
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*/
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public function getLayout()
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{
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return $this->_layout;
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}
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/**
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* Disable layout
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*
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* @return Zend_Layout
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*/
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public function disableLayout()
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{
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$this->_enabled = false;
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return $this;
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}
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/**
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* Enable layout
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*
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* @return Zend_Layout
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*/
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public function enableLayout()
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{
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$this->_enabled = true;
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return $this;
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}
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/**
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* Is layout enabled?
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*
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* @return bool
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*/
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public function isEnabled()
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{
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return $this->_enabled;
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}
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public function setViewBasePath($path, $prefix = 'Layout_View')
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{
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$this->_viewBasePath = $path;
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$this->_viewBasePrefix = $prefix;
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return $this;
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}
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public function getViewBasePath()
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{
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return $this->_viewBasePath;
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}
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public function setViewScriptPath($path)
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{
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$this->_viewScriptPath = $path;
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return $this;
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}
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public function getViewScriptPath()
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{
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return $this->_viewScriptPath;
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}
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/**
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* Set layout script path
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*
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* @param string $path
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* @return Zend_Layout
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*/
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public function setLayoutPath($path)
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{
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return $this->setViewScriptPath($path);
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}
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/**
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* Get current layout script path
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*
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* @return string
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*/
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public function getLayoutPath()
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{
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return $this->getViewScriptPath();
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}
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/**
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* Set content key
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*
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* Key in namespace container denoting default content
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*
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* @param string $contentKey
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* @return Zend_Layout
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*/
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public function setContentKey($contentKey)
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{
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$this->_contentKey = (string) $contentKey;
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return $this;
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}
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/**
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* Retrieve content key
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*
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* @return string
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*/
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public function getContentKey()
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{
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return $this->_contentKey;
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}
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/**
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* Set MVC enabled flag
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*
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* @param bool $mvcEnabled
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* @return Zend_Layout
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*/
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protected function _setMvcEnabled($mvcEnabled)
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{
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$this->_mvcEnabled = ($mvcEnabled) ? true : false;
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return $this;
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}
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/**
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* Retrieve MVC enabled flag
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*
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* @return bool
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*/
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public function getMvcEnabled()
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{
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return $this->_mvcEnabled;
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}
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/**
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* Set MVC Successful Action Only flag
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*
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* @param bool $successfulActionOnly
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* @return Zend_Layout
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*/
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public function setMvcSuccessfulActionOnly($successfulActionOnly)
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{
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$this->_mvcSuccessfulActionOnly = ($successfulActionOnly) ? true : false;
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return $this;
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}
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/**
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* Get MVC Successful Action Only Flag
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*
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* @return bool
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*/
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public function getMvcSuccessfulActionOnly()
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{
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return $this->_mvcSuccessfulActionOnly;
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}
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/**
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* Set view object
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*
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* @param Zend_View_Interface $view
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* @return Zend_Layout
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*/
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public function setView(Zend_View_Interface $view)
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{
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$this->_view = $view;
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return $this;
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}
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/**
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* Retrieve helper class
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*
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* @return string
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*/
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public function getHelperClass()
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{
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return $this->_helperClass;
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}
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/**
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* Set helper class
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*
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* @param string $helperClass
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* @return Zend_Layout
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*/
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public function setHelperClass($helperClass)
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{
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$this->_helperClass = (string) $helperClass;
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return $this;
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}
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/**
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* Retrieve plugin class
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*
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* @return string
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*/
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public function getPluginClass()
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{
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return $this->_pluginClass;
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}
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/**
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* Set plugin class
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*
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* @param string $pluginClass
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* @return Zend_Layout
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*/
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public function setPluginClass($pluginClass)
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{
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$this->_pluginClass = (string) $pluginClass;
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return $this;
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}
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/**
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* Get current view object
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*
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* If no view object currently set, retrieves it from the ViewRenderer.
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*
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* @todo Set inflector from view renderer at same time
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* @return Zend_View_Interface
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*/
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public function getView()
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{
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if (null === $this->_view) {
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require_once 'Zend/Controller/Action/HelperBroker.php';
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$viewRenderer = Zend_Controller_Action_HelperBroker::getStaticHelper('viewRenderer');
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if (null === $viewRenderer->view) {
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$viewRenderer->initView();
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}
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$this->setView($viewRenderer->view);
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}
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return $this->_view;
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}
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/**
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* Set layout view script suffix
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*
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* @param string $viewSuffix
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* @return Zend_Layout
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*/
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public function setViewSuffix($viewSuffix)
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{
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$this->_viewSuffix = (string) $viewSuffix;
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return $this;
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}
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/**
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* Retrieve layout view script suffix
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*
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* @return string
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*/
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public function getViewSuffix()
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{
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return $this->_viewSuffix;
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}
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/**
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* Retrieve inflector target
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*
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* @return string
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*/
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public function getInflectorTarget()
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{
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return $this->_inflectorTarget;
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}
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|
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/**
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* Set inflector target
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*
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* @param string $inflectorTarget
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* @return Zend_Layout
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*/
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public function setInflectorTarget($inflectorTarget)
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{
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$this->_inflectorTarget = (string) $inflectorTarget;
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return $this;
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}
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/**
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* Set inflector to use when resolving layout names
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*
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* @param Zend_Filter_Inflector $inflector
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* @return Zend_Layout
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*/
|
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public function setInflector(Zend_Filter_Inflector $inflector)
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{
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$this->_inflector = $inflector;
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return $this;
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}
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|
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/**
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* Retrieve inflector
|
|
*
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* @return Zend_Filter_Inflector
|
|
*/
|
|
public function getInflector()
|
|
{
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if (null === $this->_inflector) {
|
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require_once 'Zend/Filter/Inflector.php';
|
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$inflector = new Zend_Filter_Inflector();
|
|
$inflector->setTargetReference($this->_inflectorTarget)
|
|
->addRules(array(':script' => array('Word_CamelCaseToDash', 'StringToLower')))
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|
->setStaticRuleReference('suffix', $this->_viewSuffix);
|
|
$this->setInflector($inflector);
|
|
}
|
|
|
|
return $this->_inflector;
|
|
}
|
|
|
|
/**
|
|
* Enable inflector
|
|
*
|
|
* @return Zend_Layout
|
|
*/
|
|
public function enableInflector()
|
|
{
|
|
$this->_inflectorEnabled = true;
|
|
return $this;
|
|
}
|
|
|
|
/**
|
|
* Disable inflector
|
|
*
|
|
* @return Zend_Layout
|
|
*/
|
|
public function disableInflector()
|
|
{
|
|
$this->_inflectorEnabled = false;
|
|
return $this;
|
|
}
|
|
|
|
/**
|
|
* Return status of inflector enabled flag
|
|
*
|
|
* @return bool
|
|
*/
|
|
public function inflectorEnabled()
|
|
{
|
|
return $this->_inflectorEnabled;
|
|
}
|
|
|
|
/**
|
|
* Set layout variable
|
|
*
|
|
* @param string $key
|
|
* @param mixed $value
|
|
* @return void
|
|
*/
|
|
public function __set($key, $value)
|
|
{
|
|
$this->_container[$key] = $value;
|
|
}
|
|
|
|
/**
|
|
* Get layout variable
|
|
*
|
|
* @param string $key
|
|
* @return mixed
|
|
*/
|
|
public function __get($key)
|
|
{
|
|
if (isset($this->_container[$key])) {
|
|
return $this->_container[$key];
|
|
}
|
|
|
|
return null;
|
|
}
|
|
|
|
/**
|
|
* Is a layout variable set?
|
|
*
|
|
* @param string $key
|
|
* @return bool
|
|
*/
|
|
public function __isset($key)
|
|
{
|
|
return (isset($this->_container[$key]));
|
|
}
|
|
|
|
/**
|
|
* Unset a layout variable?
|
|
*
|
|
* @param string $key
|
|
* @return void
|
|
*/
|
|
public function __unset($key)
|
|
{
|
|
if (isset($this->_container[$key])) {
|
|
unset($this->_container[$key]);
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Assign one or more layout variables
|
|
*
|
|
* @param mixed $spec Assoc array or string key; if assoc array, sets each
|
|
* key as a layout variable
|
|
* @param mixed $value Value if $spec is a key
|
|
* @return Zend_Layout
|
|
* @throws Zend_Layout_Exception if non-array/string value passed to $spec
|
|
*/
|
|
public function assign($spec, $value = null)
|
|
{
|
|
if (is_array($spec)) {
|
|
$orig = $this->_container->getArrayCopy();
|
|
$merged = array_merge($orig, $spec);
|
|
$this->_container->exchangeArray($merged);
|
|
return $this;
|
|
}
|
|
|
|
if (is_string($spec)) {
|
|
$this->_container[$spec] = $value;
|
|
return $this;
|
|
}
|
|
|
|
require_once 'Zend/Layout/Exception.php';
|
|
throw new Zend_Layout_Exception('Invalid values passed to assign()');
|
|
}
|
|
|
|
/**
|
|
* Render layout
|
|
*
|
|
* Sets internal script path as last path on script path stack, assigns
|
|
* layout variables to view, determines layout name using inflector, and
|
|
* renders layout view script.
|
|
*
|
|
* $name will be passed to the inflector as the key 'script'.
|
|
*
|
|
* @param mixed $name
|
|
* @return mixed
|
|
*/
|
|
public function render($name = null)
|
|
{
|
|
if (null === $name) {
|
|
$name = $this->getLayout();
|
|
}
|
|
|
|
if ($this->inflectorEnabled() && (null !== ($inflector = $this->getInflector())))
|
|
{
|
|
$name = $this->_inflector->filter(array('script' => $name));
|
|
}
|
|
|
|
$view = $this->getView();
|
|
|
|
if (null !== ($path = $this->getViewScriptPath())) {
|
|
if (method_exists($view, 'addScriptPath')) {
|
|
$view->addScriptPath($path);
|
|
} else {
|
|
$view->setScriptPath($path);
|
|
}
|
|
} elseif (null !== ($path = $this->getViewBasePath())) {
|
|
$view->addBasePath($path, $this->_viewBasePrefix);
|
|
}
|
|
|
|
return $view->render($name);
|
|
}
|
|
}
|