1395 Zeilen
40 KiB
PHP
1395 Zeilen
40 KiB
PHP
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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_Controller
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* @subpackage Zend_Controller_Action_Helper
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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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* @see Zend_Controller_Action_Helper_Abstract
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*/
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require_once 'Zend/Controller/Action/Helper/Abstract.php';
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/**
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* Simplify context switching based on requested format
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*
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* @uses Zend_Controller_Action_Helper_Abstract
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* @category Zend
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* @package Zend_Controller
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* @subpackage Zend_Controller_Action_Helper
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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_Controller_Action_Helper_ContextSwitch extends Zend_Controller_Action_Helper_Abstract
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{
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/**
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* Trigger type constants
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*/
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const TRIGGER_INIT = 'TRIGGER_INIT';
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const TRIGGER_POST = 'TRIGGER_POST';
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/**
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* Supported contexts
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* @var array
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*/
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protected $_contexts = array();
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/**
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* JSON auto-serialization flag
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* @var boolean
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*/
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protected $_autoJsonSerialization = true;
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/**
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* Controller property key to utilize for context switching
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* @var string
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*/
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protected $_contextKey = 'contexts';
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/**
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* Request parameter containing requested context
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* @var string
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*/
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protected $_contextParam = 'format';
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/**
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* Current context
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* @var string
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*/
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protected $_currentContext;
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/**
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* Default context (xml)
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* @var string
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*/
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protected $_defaultContext = 'xml';
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/**
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* Whether or not to disable layouts when switching contexts
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* @var boolean
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*/
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protected $_disableLayout = true;
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/**
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* Methods that require special configuration
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* @var array
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*/
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protected $_specialConfig = array(
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'setSuffix',
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'setHeaders',
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'setCallbacks',
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);
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/**
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* Methods that are not configurable via setOptions and setConfig
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* @var array
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*/
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protected $_unconfigurable = array(
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'setOptions',
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'setConfig',
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'setHeader',
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'setCallback',
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'setContext',
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'setActionContext',
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'setActionContexts',
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);
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/**
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* @var Zend_Controller_Action_Helper_ViewRenderer
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*/
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protected $_viewRenderer;
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/**
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* Original view suffix prior to detecting context switch
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* @var string
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*/
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protected $_viewSuffixOrig;
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/**
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* Constructor
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*
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* @param array|Zend_Config $options
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* @return void
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*/
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public function __construct($options = null)
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{
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if ($options instanceof Zend_Config) {
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$this->setConfig($options);
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} elseif (is_array($options)) {
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$this->setOptions($options);
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}
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if (empty($this->_contexts)) {
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$this->addContexts(array(
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'json' => array(
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'suffix' => 'json',
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'headers' => array('Content-Type' => 'application/json'),
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'callbacks' => array(
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'init' => 'initJsonContext',
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'post' => 'postJsonContext'
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)
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),
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'xml' => array(
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'suffix' => 'xml',
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'headers' => array('Content-Type' => 'application/xml'),
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)
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));
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}
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$this->init();
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}
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/**
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* Initialize at start of action controller
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*
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* Reset the view script suffix to the original state, or store the
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* original state.
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*
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* @return void
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*/
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public function init()
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{
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if (null === $this->_viewSuffixOrig) {
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$this->_viewSuffixOrig = $this->_getViewRenderer()->getViewSuffix();
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} else {
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$this->_getViewRenderer()->setViewSuffix($this->_viewSuffixOrig);
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}
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}
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/**
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* Configure object from array of options
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*
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* @param array $options
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* @return Zend_Controller_Action_Helper_ContextSwitch Provides a fluent interface
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*/
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public function setOptions(array $options)
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{
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if (isset($options['contexts'])) {
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$this->setContexts($options['contexts']);
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unset($options['contexts']);
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}
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foreach ($options as $key => $value) {
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$method = 'set' . ucfirst($key);
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if (in_array($method, $this->_unconfigurable)) {
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continue;
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}
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if (in_array($method, $this->_specialConfig)) {
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$method = '_' . $method;
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}
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if (method_exists($this, $method)) {
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$this->$method($value);
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}
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}
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return $this;
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}
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/**
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* Set object state from config object
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*
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* @param Zend_Config $config
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* @return Zend_Controller_Action_Helper_ContextSwitch Provides a fluent interface
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*/
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public function setConfig(Zend_Config $config)
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{
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return $this->setOptions($config->toArray());
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}
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/**
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* Strategy pattern: return object
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*
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* @return Zend_Controller_Action_Helper_ContextSwitch Provides a fluent interface
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*/
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public function direct()
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{
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return $this;
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}
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/**
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* Initialize context detection and switching
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*
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* @param mixed $format
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* @throws Zend_Controller_Action_Exception
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* @return void
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*/
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public function initContext($format = null)
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{
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$this->_currentContext = null;
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$controller = $this->getActionController();
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$request = $this->getRequest();
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$action = $request->getActionName();
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// Return if no context switching enabled, or no context switching
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// enabled for this action
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$contexts = $this->getActionContexts($action);
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if (empty($contexts)) {
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return;
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}
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// Return if no context parameter provided
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if (!$context = $request->getParam($this->getContextParam())) {
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if ($format === null) {
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return;
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}
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$context = $format;
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$format = null;
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}
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// Check if context allowed by action controller
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if (!$this->hasActionContext($action, $context)) {
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return;
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}
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// Return if invalid context parameter provided and no format or invalid
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// format provided
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if (!$this->hasContext($context)) {
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if (empty($format) || !$this->hasContext($format)) {
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return;
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}
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}
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// Use provided format if passed
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if (!empty($format) && $this->hasContext($format)) {
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$context = $format;
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}
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$suffix = $this->getSuffix($context);
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$this->_getViewRenderer()->setViewSuffix($suffix);
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$headers = $this->getHeaders($context);
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if (!empty($headers)) {
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$response = $this->getResponse();
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foreach ($headers as $header => $content) {
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$response->setHeader($header, $content);
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}
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}
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if ($this->getAutoDisableLayout()) {
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/**
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* @see Zend_Layout
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*/
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require_once 'Zend/Layout.php';
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$layout = Zend_Layout::getMvcInstance();
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if (null !== $layout) {
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$layout->disableLayout();
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}
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}
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if (null !== ($callback = $this->getCallback($context, self::TRIGGER_INIT))) {
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if (is_string($callback) && method_exists($this, $callback)) {
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$this->$callback();
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} elseif (is_string($callback) && function_exists($callback)) {
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$callback();
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} elseif (is_array($callback)) {
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call_user_func($callback);
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} else {
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/**
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* @see Zend_Controller_Action_Exception
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*/
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require_once 'Zend/Controller/Action/Exception.php';
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throw new Zend_Controller_Action_Exception(sprintf('Invalid context callback registered for context "%s"', $context));
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}
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}
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$this->_currentContext = $context;
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}
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/**
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* JSON context extra initialization
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*
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* Turns off viewRenderer auto-rendering
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*
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* @return void
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*/
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public function initJsonContext()
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{
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if (!$this->getAutoJsonSerialization()) {
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return;
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}
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$viewRenderer = Zend_Controller_Action_HelperBroker::getStaticHelper('viewRenderer');
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$view = $viewRenderer->view;
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if ($view instanceof Zend_View_Interface) {
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$viewRenderer->setNoRender(true);
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}
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}
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/**
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* Should JSON contexts auto-serialize?
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*
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* @param boolean $flag
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* @return Zend_Controller_Action_Helper_ContextSwitch Provides a fluent interface
|
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*/
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public function setAutoJsonSerialization($flag)
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{
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$this->_autoJsonSerialization = (bool) $flag;
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return $this;
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}
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/**
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* Get JSON context auto-serialization flag
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*
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* @return boolean
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*/
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public function getAutoJsonSerialization()
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{
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return $this->_autoJsonSerialization;
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}
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/**
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* Set suffix from array
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*
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* @param array $spec
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* @return Zend_Controller_Action_Helper_ContextSwitch Provides a fluent interface
|
||
|
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*/
|
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protected function _setSuffix(array $spec)
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{
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foreach ($spec as $context => $suffixInfo) {
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if (!is_string($context)) {
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$context = null;
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}
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if (is_string($suffixInfo)) {
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$this->setSuffix($context, $suffixInfo);
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continue;
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} elseif (is_array($suffixInfo)) {
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if (isset($suffixInfo['suffix'])) {
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$suffix = $suffixInfo['suffix'];
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$prependViewRendererSuffix = true;
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|
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if ((null === $context) && isset($suffixInfo['context'])) {
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$context = $suffixInfo['context'];
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}
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|
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if (isset($suffixInfo['prependViewRendererSuffix'])) {
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$prependViewRendererSuffix = $suffixInfo['prependViewRendererSuffix'];
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}
|
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$this->setSuffix($context, $suffix, $prependViewRendererSuffix);
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continue;
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}
|
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|
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|
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$count = count($suffixInfo);
|
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switch (true) {
|
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case (($count < 2) && (null === $context)):
|
||
|
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/**
|
||
|
|
* @see Zend_Controller_Action_Exception
|
||
|
|
*/
|
||
|
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require_once 'Zend/Controller/Action/Exception.php';
|
||
|
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throw new Zend_Controller_Action_Exception('Invalid suffix information provided in config');
|
||
|
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case ($count < 2):
|
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$suffix = array_shift($suffixInfo);
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$this->setSuffix($context, $suffix);
|
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break;
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case (($count < 3) && (null === $context)):
|
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$context = array_shift($suffixInfo);
|
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$suffix = array_shift($suffixInfo);
|
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$this->setSuffix($context, $suffix);
|
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break;
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case (($count == 3) && (null === $context)):
|
||
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$context = array_shift($suffixInfo);
|
||
|
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$suffix = array_shift($suffixInfo);
|
||
|
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$prependViewRendererSuffix = array_shift($suffixInfo);
|
||
|
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$this->setSuffix($context, $suffix, $prependViewRendererSuffix);
|
||
|
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break;
|
||
|
|
case ($count >= 2):
|
||
|
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$suffix = array_shift($suffixInfo);
|
||
|
|
$prependViewRendererSuffix = array_shift($suffixInfo);
|
||
|
|
$this->setSuffix($context, $suffix, $prependViewRendererSuffix);
|
||
|
|
break;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
return $this;
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Customize view script suffix to use when switching context.
|
||
|
|
*
|
||
|
|
* Passing an empty suffix value to the setters disables the view script
|
||
|
|
* suffix change.
|
||
|
|
*
|
||
|
|
* @param string $context Context type for which to set suffix
|
||
|
|
* @param string $suffix Suffix to use
|
||
|
|
* @param boolean $prependViewRendererSuffix Whether or not to prepend the new suffix to the viewrenderer suffix
|
||
|
|
* @throws Zend_Controller_Action_Exception
|
||
|
|
* @return Zend_Controller_Action_Helper_ContextSwitch Provides a fluent interface
|
||
|
|
*/
|
||
|
|
public function setSuffix($context, $suffix, $prependViewRendererSuffix = true)
|
||
|
|
{
|
||
|
|
if (!isset($this->_contexts[$context])) {
|
||
|
|
/**
|
||
|
|
* @see Zend_Controller_Action_Exception
|
||
|
|
*/
|
||
|
|
require_once 'Zend/Controller/Action/Exception.php';
|
||
|
|
throw new Zend_Controller_Action_Exception(sprintf('Cannot set suffix; invalid context type "%s"', $context));
|
||
|
|
}
|
||
|
|
|
||
|
|
if (empty($suffix)) {
|
||
|
|
$suffix = '';
|
||
|
|
}
|
||
|
|
|
||
|
|
if (is_array($suffix)) {
|
||
|
|
if (isset($suffix['prependViewRendererSuffix'])) {
|
||
|
|
$prependViewRendererSuffix = $suffix['prependViewRendererSuffix'];
|
||
|
|
}
|
||
|
|
if (isset($suffix['suffix'])) {
|
||
|
|
$suffix = $suffix['suffix'];
|
||
|
|
} else {
|
||
|
|
$suffix = '';
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
$suffix = (string) $suffix;
|
||
|
|
|
||
|
|
if ($prependViewRendererSuffix) {
|
||
|
|
if (empty($suffix)) {
|
||
|
|
$suffix = $this->_getViewRenderer()->getViewSuffix();
|
||
|
|
} else {
|
||
|
|
$suffix .= '.' . $this->_getViewRenderer()->getViewSuffix();
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
$this->_contexts[$context]['suffix'] = $suffix;
|
||
|
|
return $this;
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Retrieve suffix for given context type
|
||
|
|
*
|
||
|
|
* @param string $type Context type
|
||
|
|
* @throws Zend_Controller_Action_Exception
|
||
|
|
* @return string
|
||
|
|
*/
|
||
|
|
public function getSuffix($type)
|
||
|
|
{
|
||
|
|
if (!isset($this->_contexts[$type])) {
|
||
|
|
/**
|
||
|
|
* @see Zend_Controller_Action_Exception
|
||
|
|
*/
|
||
|
|
require_once 'Zend/Controller/Action/Exception.php';
|
||
|
|
throw new Zend_Controller_Action_Exception(sprintf('Cannot retrieve suffix; invalid context type "%s"', $type));
|
||
|
|
}
|
||
|
|
|
||
|
|
return $this->_contexts[$type]['suffix'];
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Does the given context exist?
|
||
|
|
*
|
||
|
|
* @param string $context
|
||
|
|
* @param boolean $throwException
|
||
|
|
* @throws Zend_Controller_Action_Exception if context does not exist and throwException is true
|
||
|
|
* @return bool
|
||
|
|
*/
|
||
|
|
public function hasContext($context, $throwException = false)
|
||
|
|
{
|
||
|
|
if (is_string($context)) {
|
||
|
|
if (isset($this->_contexts[$context])) {
|
||
|
|
return true;
|
||
|
|
}
|
||
|
|
} elseif (is_array($context)) {
|
||
|
|
$error = false;
|
||
|
|
foreach ($context as $test) {
|
||
|
|
if (!isset($this->_contexts[$test])) {
|
||
|
|
$error = (string) $test;
|
||
|
|
break;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
if (false === $error) {
|
||
|
|
return true;
|
||
|
|
}
|
||
|
|
$context = $error;
|
||
|
|
} elseif (true === $context) {
|
||
|
|
return true;
|
||
|
|
}
|
||
|
|
|
||
|
|
if ($throwException) {
|
||
|
|
/**
|
||
|
|
* @see Zend_Controller_Action_Exception
|
||
|
|
*/
|
||
|
|
require_once 'Zend/Controller/Action/Exception.php';
|
||
|
|
throw new Zend_Controller_Action_Exception(sprintf('Context "%s" does not exist', $context));
|
||
|
|
}
|
||
|
|
|
||
|
|
return false;
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Add header to context
|
||
|
|
*
|
||
|
|
* @param string $context
|
||
|
|
* @param string $header
|
||
|
|
* @param string $content
|
||
|
|
* @throws Zend_Controller_Action_Exception
|
||
|
|
* @return Zend_Controller_Action_Helper_ContextSwitch Provides a fluent interface
|
||
|
|
*/
|
||
|
|
public function addHeader($context, $header, $content)
|
||
|
|
{
|
||
|
|
$context = (string) $context;
|
||
|
|
$this->hasContext($context, true);
|
||
|
|
|
||
|
|
$header = (string) $header;
|
||
|
|
$content = (string) $content;
|
||
|
|
|
||
|
|
if (isset($this->_contexts[$context]['headers'][$header])) {
|
||
|
|
/**
|
||
|
|
* @see Zend_Controller_Action_Exception
|
||
|
|
*/
|
||
|
|
require_once 'Zend/Controller/Action/Exception.php';
|
||
|
|
throw new Zend_Controller_Action_Exception(sprintf('Cannot add "%s" header to context "%s": already exists', $header, $context));
|
||
|
|
}
|
||
|
|
|
||
|
|
$this->_contexts[$context]['headers'][$header] = $content;
|
||
|
|
return $this;
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Customize response header to use when switching context
|
||
|
|
*
|
||
|
|
* Passing an empty header value to the setters disables the response
|
||
|
|
* header.
|
||
|
|
*
|
||
|
|
* @param string $type Context type for which to set suffix
|
||
|
|
* @param string $header Header to set
|
||
|
|
* @param string $content Header content
|
||
|
|
* @return Zend_Controller_Action_Helper_ContextSwitch Provides a fluent interface
|
||
|
|
*/
|
||
|
|
public function setHeader($context, $header, $content)
|
||
|
|
{
|
||
|
|
$this->hasContext($context, true);
|
||
|
|
$context = (string) $context;
|
||
|
|
$header = (string) $header;
|
||
|
|
$content = (string) $content;
|
||
|
|
|
||
|
|
$this->_contexts[$context]['headers'][$header] = $content;
|
||
|
|
return $this;
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Add multiple headers at once for a given context
|
||
|
|
*
|
||
|
|
* @param string $context
|
||
|
|
* @param array $headers
|
||
|
|
* @return Zend_Controller_Action_Helper_ContextSwitch Provides a fluent interface
|
||
|
|
*/
|
||
|
|
public function addHeaders($context, array $headers)
|
||
|
|
{
|
||
|
|
foreach ($headers as $header => $content) {
|
||
|
|
$this->addHeader($context, $header, $content);
|
||
|
|
}
|
||
|
|
|
||
|
|
return $this;
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Set headers from context => headers pairs
|
||
|
|
*
|
||
|
|
* @param array $options
|
||
|
|
* @return Zend_Controller_Action_Helper_ContextSwitch Provides a fluent interface
|
||
|
|
*/
|
||
|
|
protected function _setHeaders(array $options)
|
||
|
|
{
|
||
|
|
foreach ($options as $context => $headers) {
|
||
|
|
if (!is_array($headers)) {
|
||
|
|
continue;
|
||
|
|
}
|
||
|
|
$this->setHeaders($context, $headers);
|
||
|
|
}
|
||
|
|
|
||
|
|
return $this;
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Set multiple headers at once for a given context
|
||
|
|
*
|
||
|
|
* @param string $context
|
||
|
|
* @param array $headers
|
||
|
|
* @return Zend_Controller_Action_Helper_ContextSwitch Provides a fluent interface
|
||
|
|
*/
|
||
|
|
public function setHeaders($context, array $headers)
|
||
|
|
{
|
||
|
|
$this->clearHeaders($context);
|
||
|
|
foreach ($headers as $header => $content) {
|
||
|
|
$this->setHeader($context, $header, $content);
|
||
|
|
}
|
||
|
|
|
||
|
|
return $this;
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Retrieve context header
|
||
|
|
*
|
||
|
|
* Returns the value of a given header for a given context type
|
||
|
|
*
|
||
|
|
* @param string $context
|
||
|
|
* @param string $header
|
||
|
|
* @return string|null
|
||
|
|
*/
|
||
|
|
public function getHeader($context, $header)
|
||
|
|
{
|
||
|
|
$this->hasContext($context, true);
|
||
|
|
$context = (string) $context;
|
||
|
|
$header = (string) $header;
|
||
|
|
if (isset($this->_contexts[$context]['headers'][$header])) {
|
||
|
|
return $this->_contexts[$context]['headers'][$header];
|
||
|
|
}
|
||
|
|
|
||
|
|
return null;
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Retrieve context headers
|
||
|
|
*
|
||
|
|
* Returns all headers for a context as key/value pairs
|
||
|
|
*
|
||
|
|
* @param string $context
|
||
|
|
* @return array
|
||
|
|
*/
|
||
|
|
public function getHeaders($context)
|
||
|
|
{
|
||
|
|
$this->hasContext($context, true);
|
||
|
|
$context = (string) $context;
|
||
|
|
return $this->_contexts[$context]['headers'];
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Remove a single header from a context
|
||
|
|
*
|
||
|
|
* @param string $context
|
||
|
|
* @param string $header
|
||
|
|
* @return boolean
|
||
|
|
*/
|
||
|
|
public function removeHeader($context, $header)
|
||
|
|
{
|
||
|
|
$this->hasContext($context, true);
|
||
|
|
$context = (string) $context;
|
||
|
|
$header = (string) $header;
|
||
|
|
if (isset($this->_contexts[$context]['headers'][$header])) {
|
||
|
|
unset($this->_contexts[$context]['headers'][$header]);
|
||
|
|
return true;
|
||
|
|
}
|
||
|
|
|
||
|
|
return false;
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Clear all headers for a given context
|
||
|
|
*
|
||
|
|
* @param string $context
|
||
|
|
* @return Zend_Controller_Action_Helper_ContextSwitch Provides a fluent interface
|
||
|
|
*/
|
||
|
|
public function clearHeaders($context)
|
||
|
|
{
|
||
|
|
$this->hasContext($context, true);
|
||
|
|
$context = (string) $context;
|
||
|
|
$this->_contexts[$context]['headers'] = array();
|
||
|
|
return $this;
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Validate trigger and return in normalized form
|
||
|
|
*
|
||
|
|
* @param string $trigger
|
||
|
|
* @throws Zend_Controller_Action_Exception
|
||
|
|
* @return string
|
||
|
|
*/
|
||
|
|
protected function _validateTrigger($trigger)
|
||
|
|
{
|
||
|
|
$trigger = strtoupper($trigger);
|
||
|
|
if ('TRIGGER_' !== substr($trigger, 0, 8)) {
|
||
|
|
$trigger = 'TRIGGER_' . $trigger;
|
||
|
|
}
|
||
|
|
|
||
|
|
if (!in_array($trigger, array(self::TRIGGER_INIT, self::TRIGGER_POST))) {
|
||
|
|
/**
|
||
|
|
* @see Zend_Controller_Action_Exception
|
||
|
|
*/
|
||
|
|
require_once 'Zend/Controller/Action/Exception.php';
|
||
|
|
throw new Zend_Controller_Action_Exception(sprintf('Invalid trigger "%s"', $trigger));
|
||
|
|
}
|
||
|
|
|
||
|
|
return $trigger;
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Set a callback for a given context and trigger
|
||
|
|
*
|
||
|
|
* @param string $context
|
||
|
|
* @param string $trigger
|
||
|
|
* @param string|array $callback
|
||
|
|
* @throws Zend_Controller_Action_Exception
|
||
|
|
* @return Zend_Controller_Action_Helper_ContextSwitch Provides a fluent interface
|
||
|
|
*/
|
||
|
|
public function setCallback($context, $trigger, $callback)
|
||
|
|
{
|
||
|
|
$this->hasContext($context, true);
|
||
|
|
$trigger = $this->_validateTrigger($trigger);
|
||
|
|
|
||
|
|
if (!is_string($callback)) {
|
||
|
|
if (!is_array($callback) || (2 != count($callback))) {
|
||
|
|
/**
|
||
|
|
* @see Zend_Controller_Action_Exception
|
||
|
|
*/
|
||
|
|
require_once 'Zend/Controller/Action/Exception.php';
|
||
|
|
throw new Zend_Controller_Action_Exception('Invalid callback specified');
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
$this->_contexts[$context]['callbacks'][$trigger] = $callback;
|
||
|
|
return $this;
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Set callbacks from array of context => callbacks pairs
|
||
|
|
*
|
||
|
|
* @param array $options
|
||
|
|
* @return Zend_Controller_Action_Helper_ContextSwitch Provides a fluent interface
|
||
|
|
*/
|
||
|
|
protected function _setCallbacks(array $options)
|
||
|
|
{
|
||
|
|
foreach ($options as $context => $callbacks) {
|
||
|
|
if (!is_array($callbacks)) {
|
||
|
|
continue;
|
||
|
|
}
|
||
|
|
|
||
|
|
$this->setCallbacks($context, $callbacks);
|
||
|
|
}
|
||
|
|
return $this;
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Set callbacks for a given context
|
||
|
|
*
|
||
|
|
* Callbacks should be in trigger/callback pairs.
|
||
|
|
*
|
||
|
|
* @param string $context
|
||
|
|
* @param array $callbacks
|
||
|
|
* @return Zend_Controller_Action_Helper_ContextSwitch Provides a fluent interface
|
||
|
|
*/
|
||
|
|
public function setCallbacks($context, array $callbacks)
|
||
|
|
{
|
||
|
|
$this->hasContext($context, true);
|
||
|
|
$context = (string) $context;
|
||
|
|
if (!isset($this->_contexts[$context]['callbacks'])) {
|
||
|
|
$this->_contexts[$context]['callbacks'] = array();
|
||
|
|
}
|
||
|
|
|
||
|
|
foreach ($callbacks as $trigger => $callback) {
|
||
|
|
$this->setCallback($context, $trigger, $callback);
|
||
|
|
}
|
||
|
|
return $this;
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Get a single callback for a given context and trigger
|
||
|
|
*
|
||
|
|
* @param string $context
|
||
|
|
* @param string $trigger
|
||
|
|
* @return string|array|null
|
||
|
|
*/
|
||
|
|
public function getCallback($context, $trigger)
|
||
|
|
{
|
||
|
|
$this->hasContext($context, true);
|
||
|
|
$trigger = $this->_validateTrigger($trigger);
|
||
|
|
if (isset($this->_contexts[$context]['callbacks'][$trigger])) {
|
||
|
|
return $this->_contexts[$context]['callbacks'][$trigger];
|
||
|
|
}
|
||
|
|
|
||
|
|
return null;
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Get all callbacks for a given context
|
||
|
|
*
|
||
|
|
* @param string $context
|
||
|
|
* @return array
|
||
|
|
*/
|
||
|
|
public function getCallbacks($context)
|
||
|
|
{
|
||
|
|
$this->hasContext($context, true);
|
||
|
|
return $this->_contexts[$context]['callbacks'];
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Clear a callback for a given context and trigger
|
||
|
|
*
|
||
|
|
* @param string $context
|
||
|
|
* @param string $trigger
|
||
|
|
* @return boolean
|
||
|
|
*/
|
||
|
|
public function removeCallback($context, $trigger)
|
||
|
|
{
|
||
|
|
$this->hasContext($context, true);
|
||
|
|
$trigger = $this->_validateTrigger($trigger);
|
||
|
|
if (isset($this->_contexts[$context]['callbacks'][$trigger])) {
|
||
|
|
unset($this->_contexts[$context]['callbacks'][$trigger]);
|
||
|
|
return true;
|
||
|
|
}
|
||
|
|
|
||
|
|
return false;
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Clear all callbacks for a given context
|
||
|
|
*
|
||
|
|
* @param string $context
|
||
|
|
* @return Zend_Controller_Action_Helper_ContextSwitch Provides a fluent interface
|
||
|
|
*/
|
||
|
|
public function clearCallbacks($context)
|
||
|
|
{
|
||
|
|
$this->hasContext($context, true);
|
||
|
|
$this->_contexts[$context]['callbacks'] = array();
|
||
|
|
return $this;
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Set name of parameter to use when determining context format
|
||
|
|
*
|
||
|
|
* @param string $name
|
||
|
|
* @return Zend_Controller_Action_Helper_ContextSwitch Provides a fluent interface
|
||
|
|
*/
|
||
|
|
public function setContextParam($name)
|
||
|
|
{
|
||
|
|
$this->_contextParam = (string) $name;
|
||
|
|
return $this;
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Return context format request parameter name
|
||
|
|
*
|
||
|
|
* @return string
|
||
|
|
*/
|
||
|
|
public function getContextParam()
|
||
|
|
{
|
||
|
|
return $this->_contextParam;
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Indicate default context to use when no context format provided
|
||
|
|
*
|
||
|
|
* @param string $type
|
||
|
|
* @throws Zend_Controller_Action_Exception
|
||
|
|
* @return Zend_Controller_Action_Helper_ContextSwitch Provides a fluent interface
|
||
|
|
*/
|
||
|
|
public function setDefaultContext($type)
|
||
|
|
{
|
||
|
|
if (!isset($this->_contexts[$type])) {
|
||
|
|
/**
|
||
|
|
* @see Zend_Controller_Action_Exception
|
||
|
|
*/
|
||
|
|
require_once 'Zend/Controller/Action/Exception.php';
|
||
|
|
throw new Zend_Controller_Action_Exception(sprintf('Cannot set default context; invalid context type "%s"', $type));
|
||
|
|
}
|
||
|
|
|
||
|
|
$this->_defaultContext = $type;
|
||
|
|
return $this;
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Return default context
|
||
|
|
*
|
||
|
|
* @return string
|
||
|
|
*/
|
||
|
|
public function getDefaultContext()
|
||
|
|
{
|
||
|
|
return $this->_defaultContext;
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Set flag indicating if layout should be disabled
|
||
|
|
*
|
||
|
|
* @param boolean $flag
|
||
|
|
* @return Zend_Controller_Action_Helper_ContextSwitch Provides a fluent interface
|
||
|
|
*/
|
||
|
|
public function setAutoDisableLayout($flag)
|
||
|
|
{
|
||
|
|
$this->_disableLayout = ($flag) ? true : false;
|
||
|
|
return $this;
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Retrieve auto layout disable flag
|
||
|
|
*
|
||
|
|
* @return boolean
|
||
|
|
*/
|
||
|
|
public function getAutoDisableLayout()
|
||
|
|
{
|
||
|
|
return $this->_disableLayout;
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Add new context
|
||
|
|
*
|
||
|
|
* @param string $context Context type
|
||
|
|
* @param array $spec Context specification
|
||
|
|
* @throws Zend_Controller_Action_Exception
|
||
|
|
* @return Zend_Controller_Action_Helper_ContextSwitch Provides a fluent interface
|
||
|
|
*/
|
||
|
|
public function addContext($context, array $spec)
|
||
|
|
{
|
||
|
|
if ($this->hasContext($context)) {
|
||
|
|
/**
|
||
|
|
* @see Zend_Controller_Action_Exception
|
||
|
|
*/
|
||
|
|
require_once 'Zend/Controller/Action/Exception.php';
|
||
|
|
throw new Zend_Controller_Action_Exception(sprintf('Cannot add context "%s"; already exists', $context));
|
||
|
|
}
|
||
|
|
$context = (string) $context;
|
||
|
|
|
||
|
|
$this->_contexts[$context] = array();
|
||
|
|
|
||
|
|
$this->setSuffix($context, (isset($spec['suffix']) ? $spec['suffix'] : ''))
|
||
|
|
->setHeaders($context, (isset($spec['headers']) ? $spec['headers'] : array()))
|
||
|
|
->setCallbacks($context, (isset($spec['callbacks']) ? $spec['callbacks'] : array()));
|
||
|
|
return $this;
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Overwrite existing context
|
||
|
|
*
|
||
|
|
* @param string $context Context type
|
||
|
|
* @param array $spec Context specification
|
||
|
|
* @return Zend_Controller_Action_Helper_ContextSwitch Provides a fluent interface
|
||
|
|
*/
|
||
|
|
public function setContext($context, array $spec)
|
||
|
|
{
|
||
|
|
$this->removeContext($context);
|
||
|
|
return $this->addContext($context, $spec);
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Add multiple contexts
|
||
|
|
*
|
||
|
|
* @param array $contexts
|
||
|
|
* @return Zend_Controller_Action_Helper_ContextSwitch Provides a fluent interface
|
||
|
|
*/
|
||
|
|
public function addContexts(array $contexts)
|
||
|
|
{
|
||
|
|
foreach ($contexts as $context => $spec) {
|
||
|
|
$this->addContext($context, $spec);
|
||
|
|
}
|
||
|
|
return $this;
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Set multiple contexts, after first removing all
|
||
|
|
*
|
||
|
|
* @param array $contexts
|
||
|
|
* @return Zend_Controller_Action_Helper_ContextSwitch Provides a fluent interface
|
||
|
|
*/
|
||
|
|
public function setContexts(array $contexts)
|
||
|
|
{
|
||
|
|
$this->clearContexts();
|
||
|
|
foreach ($contexts as $context => $spec) {
|
||
|
|
$this->addContext($context, $spec);
|
||
|
|
}
|
||
|
|
return $this;
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Retrieve context specification
|
||
|
|
*
|
||
|
|
* @param string $context
|
||
|
|
* @return array|null
|
||
|
|
*/
|
||
|
|
public function getContext($context)
|
||
|
|
{
|
||
|
|
if ($this->hasContext($context)) {
|
||
|
|
return $this->_contexts[(string) $context];
|
||
|
|
}
|
||
|
|
return null;
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Retrieve context definitions
|
||
|
|
*
|
||
|
|
* @return array
|
||
|
|
*/
|
||
|
|
public function getContexts()
|
||
|
|
{
|
||
|
|
return $this->_contexts;
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Remove a context
|
||
|
|
*
|
||
|
|
* @param string $context
|
||
|
|
* @return boolean
|
||
|
|
*/
|
||
|
|
public function removeContext($context)
|
||
|
|
{
|
||
|
|
if ($this->hasContext($context)) {
|
||
|
|
unset($this->_contexts[(string) $context]);
|
||
|
|
return true;
|
||
|
|
}
|
||
|
|
return false;
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Remove all contexts
|
||
|
|
*
|
||
|
|
* @return Zend_Controller_Action_Helper_ContextSwitch Provides a fluent interface
|
||
|
|
*/
|
||
|
|
public function clearContexts()
|
||
|
|
{
|
||
|
|
$this->_contexts = array();
|
||
|
|
return $this;
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Return current context, if any
|
||
|
|
*
|
||
|
|
* @return null|string
|
||
|
|
*/
|
||
|
|
public function getCurrentContext()
|
||
|
|
{
|
||
|
|
return $this->_currentContext;
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Post dispatch processing
|
||
|
|
*
|
||
|
|
* Execute postDispatch callback for current context, if available
|
||
|
|
*
|
||
|
|
* @throws Zend_Controller_Action_Exception
|
||
|
|
* @return void
|
||
|
|
*/
|
||
|
|
public function postDispatch()
|
||
|
|
{
|
||
|
|
$context = $this->getCurrentContext();
|
||
|
|
if (null !== $context) {
|
||
|
|
if (null !== ($callback = $this->getCallback($context, self::TRIGGER_POST))) {
|
||
|
|
if (is_string($callback) && method_exists($this, $callback)) {
|
||
|
|
$this->$callback();
|
||
|
|
} elseif (is_string($callback) && function_exists($callback)) {
|
||
|
|
$callback();
|
||
|
|
} elseif (is_array($callback)) {
|
||
|
|
call_user_func($callback);
|
||
|
|
} else {
|
||
|
|
/**
|
||
|
|
* @see Zend_Controller_Action_Exception
|
||
|
|
*/
|
||
|
|
require_once 'Zend/Controller/Action/Exception.php';
|
||
|
|
throw new Zend_Controller_Action_Exception(sprintf('Invalid postDispatch context callback registered for context "%s"', $context));
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* JSON post processing
|
||
|
|
*
|
||
|
|
* JSON serialize view variables to response body
|
||
|
|
*
|
||
|
|
* @return void
|
||
|
|
*/
|
||
|
|
public function postJsonContext()
|
||
|
|
{
|
||
|
|
if (!$this->getAutoJsonSerialization()) {
|
||
|
|
return;
|
||
|
|
}
|
||
|
|
|
||
|
|
$viewRenderer = Zend_Controller_Action_HelperBroker::getStaticHelper('viewRenderer');
|
||
|
|
$view = $viewRenderer->view;
|
||
|
|
if ($view instanceof Zend_View_Interface) {
|
||
|
|
/**
|
||
|
|
* @see Zend_Json
|
||
|
|
*/
|
||
|
|
if(method_exists($view, 'getVars')) {
|
||
|
|
require_once 'Zend/Json.php';
|
||
|
|
$vars = Zend_Json::encode($view->getVars());
|
||
|
|
$this->getResponse()->setBody($vars);
|
||
|
|
} else {
|
||
|
|
require_once 'Zend/Controller/Action/Exception.php';
|
||
|
|
throw new Zend_Controller_Action_Exception('View does not implement the getVars() method needed to encode the view into JSON');
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Add one or more contexts to an action
|
||
|
|
*
|
||
|
|
* @param string $action
|
||
|
|
* @param string|array $context
|
||
|
|
* @return Zend_Controller_Action_Helper_ContextSwitch|void Provides a fluent interface
|
||
|
|
*/
|
||
|
|
public function addActionContext($action, $context)
|
||
|
|
{
|
||
|
|
$this->hasContext($context, true);
|
||
|
|
$controller = $this->getActionController();
|
||
|
|
if (null === $controller) {
|
||
|
|
return;
|
||
|
|
}
|
||
|
|
$action = (string) $action;
|
||
|
|
$contextKey = $this->_contextKey;
|
||
|
|
|
||
|
|
if (!isset($controller->$contextKey)) {
|
||
|
|
$controller->$contextKey = array();
|
||
|
|
}
|
||
|
|
|
||
|
|
if (true === $context) {
|
||
|
|
$contexts = $this->getContexts();
|
||
|
|
$controller->{$contextKey}[$action] = array_keys($contexts);
|
||
|
|
return $this;
|
||
|
|
}
|
||
|
|
|
||
|
|
$context = (array) $context;
|
||
|
|
if (!isset($controller->{$contextKey}[$action])) {
|
||
|
|
$controller->{$contextKey}[$action] = $context;
|
||
|
|
} else {
|
||
|
|
$controller->{$contextKey}[$action] = array_merge(
|
||
|
|
$controller->{$contextKey}[$action],
|
||
|
|
$context
|
||
|
|
);
|
||
|
|
}
|
||
|
|
|
||
|
|
return $this;
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Set a context as available for a given controller action
|
||
|
|
*
|
||
|
|
* @param string $action
|
||
|
|
* @param string|array $context
|
||
|
|
* @return Zend_Controller_Action_Helper_ContextSwitch|void Provides a fluent interface
|
||
|
|
*/
|
||
|
|
public function setActionContext($action, $context)
|
||
|
|
{
|
||
|
|
$this->hasContext($context, true);
|
||
|
|
$controller = $this->getActionController();
|
||
|
|
if (null === $controller) {
|
||
|
|
return;
|
||
|
|
}
|
||
|
|
$action = (string) $action;
|
||
|
|
$contextKey = $this->_contextKey;
|
||
|
|
|
||
|
|
if (!isset($controller->$contextKey)) {
|
||
|
|
$controller->$contextKey = array();
|
||
|
|
}
|
||
|
|
|
||
|
|
if (true === $context) {
|
||
|
|
$contexts = $this->getContexts();
|
||
|
|
$controller->{$contextKey}[$action] = array_keys($contexts);
|
||
|
|
} else {
|
||
|
|
$controller->{$contextKey}[$action] = (array) $context;
|
||
|
|
}
|
||
|
|
|
||
|
|
return $this;
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Add multiple action/context pairs at once
|
||
|
|
*
|
||
|
|
* @param array $contexts
|
||
|
|
* @return Zend_Controller_Action_Helper_ContextSwitch Provides a fluent interface
|
||
|
|
*/
|
||
|
|
public function addActionContexts(array $contexts)
|
||
|
|
{
|
||
|
|
foreach ($contexts as $action => $context) {
|
||
|
|
$this->addActionContext($action, $context);
|
||
|
|
}
|
||
|
|
return $this;
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Overwrite and set multiple action contexts at once
|
||
|
|
*
|
||
|
|
* @param array $contexts
|
||
|
|
* @return Zend_Controller_Action_Helper_ContextSwitch Provides a fluent interface
|
||
|
|
*/
|
||
|
|
public function setActionContexts(array $contexts)
|
||
|
|
{
|
||
|
|
foreach ($contexts as $action => $context) {
|
||
|
|
$this->setActionContext($action, $context);
|
||
|
|
}
|
||
|
|
return $this;
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Does a particular controller action have the given context(s)?
|
||
|
|
*
|
||
|
|
* @param string $action
|
||
|
|
* @param string|array $context
|
||
|
|
* @throws Zend_Controller_Action_Exception
|
||
|
|
* @return boolean
|
||
|
|
*/
|
||
|
|
public function hasActionContext($action, $context)
|
||
|
|
{
|
||
|
|
$this->hasContext($context, true);
|
||
|
|
$controller = $this->getActionController();
|
||
|
|
if (null === $controller) {
|
||
|
|
return false;
|
||
|
|
}
|
||
|
|
$action = (string) $action;
|
||
|
|
$contextKey = $this->_contextKey;
|
||
|
|
|
||
|
|
if (!isset($controller->{$contextKey})) {
|
||
|
|
return false;
|
||
|
|
}
|
||
|
|
|
||
|
|
$allContexts = $controller->{$contextKey};
|
||
|
|
|
||
|
|
if (!is_array($allContexts)) {
|
||
|
|
/**
|
||
|
|
* @see Zend_Controller_Action_Exception
|
||
|
|
*/
|
||
|
|
require_once 'Zend/Controller/Action/Exception.php';
|
||
|
|
throw new Zend_Controller_Action_Exception("Invalid contexts found for controller");
|
||
|
|
}
|
||
|
|
|
||
|
|
if (!isset($allContexts[$action])) {
|
||
|
|
return false;
|
||
|
|
}
|
||
|
|
|
||
|
|
if (true === $allContexts[$action]) {
|
||
|
|
return true;
|
||
|
|
}
|
||
|
|
|
||
|
|
$contexts = $allContexts[$action];
|
||
|
|
|
||
|
|
if (!is_array($contexts)) {
|
||
|
|
/**
|
||
|
|
* @see Zend_Controller_Action_Exception
|
||
|
|
*/
|
||
|
|
require_once 'Zend/Controller/Action/Exception.php';
|
||
|
|
throw new Zend_Controller_Action_Exception(sprintf("Invalid contexts found for action '%s'", $action));
|
||
|
|
}
|
||
|
|
|
||
|
|
if (is_string($context) && in_array($context, $contexts)) {
|
||
|
|
return true;
|
||
|
|
} elseif (is_array($context)) {
|
||
|
|
$found = true;
|
||
|
|
foreach ($context as $test) {
|
||
|
|
if (!in_array($test, $contexts)) {
|
||
|
|
$found = false;
|
||
|
|
break;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
return $found;
|
||
|
|
}
|
||
|
|
|
||
|
|
return false;
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Get contexts for a given action or all actions in the controller
|
||
|
|
*
|
||
|
|
* @param string $action
|
||
|
|
* @return array
|
||
|
|
*/
|
||
|
|
public function getActionContexts($action = null)
|
||
|
|
{
|
||
|
|
$controller = $this->getActionController();
|
||
|
|
if (null === $controller) {
|
||
|
|
return array();
|
||
|
|
}
|
||
|
|
$action = (string) $action;
|
||
|
|
$contextKey = $this->_contextKey;
|
||
|
|
|
||
|
|
if (!isset($controller->$contextKey)) {
|
||
|
|
return array();
|
||
|
|
}
|
||
|
|
|
||
|
|
if (null !== $action) {
|
||
|
|
if (isset($controller->{$contextKey}[$action])) {
|
||
|
|
return $controller->{$contextKey}[$action];
|
||
|
|
} else {
|
||
|
|
return array();
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
return $controller->$contextKey;
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Remove one or more contexts for a given controller action
|
||
|
|
*
|
||
|
|
* @param string $action
|
||
|
|
* @param string|array $context
|
||
|
|
* @return boolean
|
||
|
|
*/
|
||
|
|
public function removeActionContext($action, $context)
|
||
|
|
{
|
||
|
|
if ($this->hasActionContext($action, $context)) {
|
||
|
|
$controller = $this->getActionController();
|
||
|
|
$contextKey = $this->_contextKey;
|
||
|
|
$action = (string) $action;
|
||
|
|
$contexts = $controller->$contextKey;
|
||
|
|
$actionContexts = $contexts[$action];
|
||
|
|
$contexts = (array) $context;
|
||
|
|
foreach ($contexts as $context) {
|
||
|
|
$index = array_search($context, $actionContexts);
|
||
|
|
if (false !== $index) {
|
||
|
|
unset($controller->{$contextKey}[$action][$index]);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
return true;
|
||
|
|
}
|
||
|
|
return false;
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Clear all contexts for a given controller action or all actions
|
||
|
|
*
|
||
|
|
* @param string $action
|
||
|
|
* @return Zend_Controller_Action_Helper_ContextSwitch Provides a fluent interface
|
||
|
|
*/
|
||
|
|
public function clearActionContexts($action = null)
|
||
|
|
{
|
||
|
|
$controller = $this->getActionController();
|
||
|
|
$contextKey = $this->_contextKey;
|
||
|
|
|
||
|
|
if (!isset($controller->$contextKey) || empty($controller->$contextKey)) {
|
||
|
|
return $this;
|
||
|
|
}
|
||
|
|
|
||
|
|
if (null === $action) {
|
||
|
|
$controller->$contextKey = array();
|
||
|
|
return $this;
|
||
|
|
}
|
||
|
|
|
||
|
|
$action = (string) $action;
|
||
|
|
if (isset($controller->{$contextKey}[$action])) {
|
||
|
|
unset($controller->{$contextKey}[$action]);
|
||
|
|
}
|
||
|
|
|
||
|
|
return $this;
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Retrieve ViewRenderer
|
||
|
|
*
|
||
|
|
* @return Zend_Controller_Action_Helper_ViewRenderer Provides a fluent interface
|
||
|
|
*/
|
||
|
|
protected function _getViewRenderer()
|
||
|
|
{
|
||
|
|
if (null === $this->_viewRenderer) {
|
||
|
|
$this->_viewRenderer = Zend_Controller_Action_HelperBroker::getStaticHelper('viewRenderer');
|
||
|
|
}
|
||
|
|
|
||
|
|
return $this->_viewRenderer;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|