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<?php
/**
* Zend Framework
*
* LICENSE
*
* This source file is subject to the new BSD license that is bundled
* with this package in the file LICENSE.txt.
* It is also available through the world-wide-web at this URL:
* http://framework.zend.com/license/new-bsd
* If you did not receive a copy of the license and are unable to
* obtain it through the world-wide-web, please send an email
* to license@zend.com so we can send you a copy immediately.
*
* @category Zend
* @package Zend_Controller
* @subpackage Zend_Controller_Action_Helper
* @copyright Copyright (c) 2005-2009 Zend Technologies USA Inc. (http://www.zend.com)
* @license http://framework.zend.com/license/new-bsd New BSD License
* @version $Id: ViewRenderer.php 16541 2009-07-07 06:59:03Z bkarwin $
*/
/**
* @see Zend_Controller_Action_Helper_Abstract
*/
require_once 'Zend/Controller/Action/Helper/Abstract.php';
/**
* @see Zend_View
*/
require_once 'Zend/View.php';
/**
* View script integration
*
* Zend_Controller_Action_Helper_ViewRenderer provides transparent view
* integration for action controllers. It allows you to create a view object
* once, and populate it throughout all actions. Several global options may be
* set:
*
* - noController: if set true, render() will not look for view scripts in
* subdirectories named after the controller
* - viewSuffix: what view script filename suffix to use
*
* The helper autoinitializes the action controller view preDispatch(). It
* determines the path to the class file, and then determines the view base
* directory from there. It also uses the module name as a class prefix for
* helpers and views such that if your module name is 'Search', it will set the
* helper class prefix to 'Search_View_Helper' and the filter class prefix to ;
* 'Search_View_Filter'.
*
* Usage:
* <code>
* // In your bootstrap:
* Zend_Controller_Action_HelperBroker::addHelper(new Zend_Controller_Action_Helper_ViewRenderer());
*
* // In your action controller methods:
* $viewHelper = $this->_helper->getHelper('view');
*
* // Don't use controller subdirectories
* $viewHelper->setNoController(true);
*
* // Specify a different script to render:
* $this->_helper->viewRenderer('form');
*
* </code>
*
* @uses Zend_Controller_Action_Helper_Abstract
* @package Zend_Controller
* @subpackage Zend_Controller_Action_Helper
* @copyright Copyright (c) 2005-2009 Zend Technologies USA Inc. (http://www.zend.com)
* @license http://framework.zend.com/license/new-bsd New BSD License
*/
class Zend_Controller_Action_Helper_ViewRenderer extends Zend_Controller_Action_Helper_Abstract
{
/**
* @var Zend_View_Interface
*/
public $view;
/**
* Word delimiters
* @var array
*/
protected $_delimiters;
/**
* Front controller instance
* @var Zend_Controller_Front
*/
protected $_frontController;
/**
* @var Zend_Filter_Inflector
*/
protected $_inflector;
/**
* Inflector target
* @var string
*/
protected $_inflectorTarget = '';
/**
* Current module directory
* @var string
*/
protected $_moduleDir = '';
/**
* Whether or not to autorender using controller name as subdirectory;
* global setting (not reset at next invocation)
* @var boolean
*/
protected $_neverController = false;
/**
* Whether or not to autorender postDispatch; global setting (not reset at
* next invocation)
* @var boolean
*/
protected $_neverRender = false;
/**
* Whether or not to use a controller name as a subdirectory when rendering
* @var boolean
*/
protected $_noController = false;
/**
* Whether or not to autorender postDispatch; per controller/action setting (reset
* at next invocation)
* @var boolean
*/
protected $_noRender = false;
/**
* Characters representing path delimiters in the controller
* @var string|array
*/
protected $_pathDelimiters;
/**
* Which named segment of the response to utilize
* @var string
*/
protected $_responseSegment = null;
/**
* Which action view script to render
* @var string
*/
protected $_scriptAction = null;
/**
* View object basePath
* @var string
*/
protected $_viewBasePathSpec = ':moduleDir/views';
/**
* View script path specification string
* @var string
*/
protected $_viewScriptPathSpec = ':controller/:action.:suffix';
/**
* View script path specification string, minus controller segment
* @var string
*/
protected $_viewScriptPathNoControllerSpec = ':action.:suffix';
/**
* View script suffix
* @var string
*/
protected $_viewSuffix = 'phtml';
/**
* Constructor
*
* Optionally set view object and options.
*
* @param Zend_View_Interface $view
* @param array $options
* @return void
*/
public function __construct(Zend_View_Interface $view = null, array $options = array())
{
if (null !== $view) {
$this->setView($view);
}
if (!empty($options)) {
$this->_setOptions($options);
}
}
/**
* Clone - also make sure the view is cloned.
*
* @return void
*/
public function __clone()
{
if (isset($this->view) && $this->view instanceof Zend_View_Interface) {
$this->view = clone $this->view;
}
}
/**
* Set the view object
*
* @param Zend_View_Interface $view
* @return Zend_Controller_Action_Helper_ViewRenderer Provides a fluent interface
*/
public function setView(Zend_View_Interface $view)
{
$this->view = $view;
return $this;
}
/**
* Get current module name
*
* @return string
*/
public function getModule()
{
$request = $this->getRequest();
$module = $request->getModuleName();
if (null === $module) {
$module = $this->getFrontController()->getDispatcher()->getDefaultModule();
}
return $module;
}
/**
* Get module directory
*
* @throws Zend_Controller_Action_Exception
* @return string
*/
public function getModuleDirectory()
{
$module = $this->getModule();
$moduleDir = $this->getFrontController()->getControllerDirectory($module);
if ((null === $moduleDir) || is_array($moduleDir)) {
/**
* @see Zend_Controller_Action_Exception
*/
require_once 'Zend/Controller/Action/Exception.php';
throw new Zend_Controller_Action_Exception('ViewRenderer cannot locate module directory');
}
$this->_moduleDir = dirname($moduleDir);
return $this->_moduleDir;
}
/**
* Get inflector
*
* @return Zend_Filter_Inflector
*/
public function getInflector()
{
if (null === $this->_inflector) {
/**
* @see Zend_Filter_Inflector
*/
require_once 'Zend/Filter/Inflector.php';
/**
* @see Zend_Filter_PregReplace
*/
require_once 'Zend/Filter/PregReplace.php';
/**
* @see Zend_Filter_Word_UnderscoreToSeparator
*/
require_once 'Zend/Filter/Word/UnderscoreToSeparator.php';
$this->_inflector = new Zend_Filter_Inflector();
$this->_inflector->setStaticRuleReference('moduleDir', $this->_moduleDir) // moduleDir must be specified before the less specific 'module'
->addRules(array(
':module' => array('Word_CamelCaseToDash', 'StringToLower'),
':controller' => array('Word_CamelCaseToDash', new Zend_Filter_Word_UnderscoreToSeparator('/'), 'StringToLower', new Zend_Filter_PregReplace('/\./', '-')),
':action' => array('Word_CamelCaseToDash', new Zend_Filter_PregReplace('#[^a-z0-9' . preg_quote('/', '#') . ']+#i', '-'), 'StringToLower'),
))
->setStaticRuleReference('suffix', $this->_viewSuffix)
->setTargetReference($this->_inflectorTarget);
}
// Ensure that module directory is current
$this->getModuleDirectory();
return $this->_inflector;
}
/**
* Set inflector
*
* @param Zend_Filter_Inflector $inflector
* @param boolean $reference Whether the moduleDir, target, and suffix should be set as references to ViewRenderer properties
* @return Zend_Controller_Action_Helper_ViewRenderer Provides a fluent interface
*/
public function setInflector(Zend_Filter_Inflector $inflector, $reference = false)
{
$this->_inflector = $inflector;
if ($reference) {
$this->_inflector->setStaticRuleReference('suffix', $this->_viewSuffix)
->setStaticRuleReference('moduleDir', $this->_moduleDir)
->setTargetReference($this->_inflectorTarget);
}
return $this;
}
/**
* Set inflector target
*
* @param string $target
* @return void
*/
protected function _setInflectorTarget($target)
{
$this->_inflectorTarget = (string) $target;
}
/**
* Set internal module directory representation
*
* @param string $dir
* @return void
*/
protected function _setModuleDir($dir)
{
$this->_moduleDir = (string) $dir;
}
/**
* Get internal module directory representation
*
* @return string
*/
protected function _getModuleDir()
{
return $this->_moduleDir;
}
/**
* Generate a class prefix for helper and filter classes
*
* @return string
*/
protected function _generateDefaultPrefix()
{
$default = 'Zend_View';
if (null === $this->_actionController) {
return $default;
}
$class = get_class($this->_actionController);
if (!strstr($class, '_')) {
return $default;
}
$module = $this->getModule();
if ('default' == $module) {
return $default;
}
$prefix = substr($class, 0, strpos($class, '_')) . '_View';
return $prefix;
}
/**
* Retrieve base path based on location of current action controller
*
* @return string
*/
protected function _getBasePath()
{
if (null === $this->_actionController) {
return './views';
}
$inflector = $this->getInflector();
$this->_setInflectorTarget($this->getViewBasePathSpec());
$dispatcher = $this->_frontController->getDispatcher();
$request = $this->getRequest();
$parts = array(
'module' => (($moduleName = $request->getModuleName()) != '') ? $dispatcher->formatModuleName($moduleName) : $moduleName,
'controller' => $request->getControllerName(),
'action' => $dispatcher->formatActionName($request->getActionName())
);
$path = $inflector->filter($parts);
return $path;
}
/**
* Set options
*
* @param array $options
* @return Zend_Controller_Action_Helper_ViewRenderer Provides a fluent interface
*/
protected function _setOptions(array $options)
{
foreach ($options as $key => $value)
{
switch ($key) {
case 'neverRender':
case 'neverController':
case 'noController':
case 'noRender':
$property = '_' . $key;
$this->{$property} = ($value) ? true : false;
break;
case 'responseSegment':
case 'scriptAction':
case 'viewBasePathSpec':
case 'viewScriptPathSpec':
case 'viewScriptPathNoControllerSpec':
case 'viewSuffix':
$property = '_' . $key;
$this->{$property} = (string) $value;
break;
default:
break;
}
}
return $this;
}
/**
* Initialize the view object
*
* $options may contain the following keys:
* - neverRender - flag dis/enabling postDispatch() autorender (affects all subsequent calls)
* - noController - flag indicating whether or not to look for view scripts in subdirectories named after the controller
* - noRender - flag indicating whether or not to autorender postDispatch()
* - responseSegment - which named response segment to render a view script to
* - scriptAction - what action script to render
* - viewBasePathSpec - specification to use for determining view base path
* - viewScriptPathSpec - specification to use for determining view script paths
* - viewScriptPathNoControllerSpec - specification to use for determining view script paths when noController flag is set
* - viewSuffix - what view script filename suffix to use
*
* @param string $path
* @param string $prefix
* @param array $options
* @throws Zend_Controller_Action_Exception
* @return void
*/
public function initView($path = null, $prefix = null, array $options = array())
{
if (null === $this->view) {
$this->setView(new Zend_View());
}
// Reset some flags every time
$options['noController'] = (isset($options['noController'])) ? $options['noController'] : false;
$options['noRender'] = (isset($options['noRender'])) ? $options['noRender'] : false;
$this->_scriptAction = null;
$this->_responseSegment = null;
// Set options first; may be used to determine other initializations
$this->_setOptions($options);
// Get base view path
if (empty($path)) {
$path = $this->_getBasePath();
if (empty($path)) {
/**
* @see Zend_Controller_Action_Exception
*/
require_once 'Zend/Controller/Action/Exception.php';
throw new Zend_Controller_Action_Exception('ViewRenderer initialization failed: retrieved view base path is empty');
}
}
if (null === $prefix) {
$prefix = $this->_generateDefaultPrefix();
}
// Determine if this path has already been registered
$currentPaths = $this->view->getScriptPaths();
$path = str_replace(array('/', '\\'), '/', $path);
$pathExists = false;
foreach ($currentPaths as $tmpPath) {
$tmpPath = str_replace(array('/', '\\'), '/', $tmpPath);
if (strstr($tmpPath, $path)) {
$pathExists = true;
break;
}
}
if (!$pathExists) {
$this->view->addBasePath($path, $prefix);
}
// Register view with action controller (unless already registered)
if ((null !== $this->_actionController) && (null === $this->_actionController->view)) {
$this->_actionController->view = $this->view;
$this->_actionController->viewSuffix = $this->_viewSuffix;
}
}
/**
* init - initialize view
*
* @return void
*/
public function init()
{
if ($this->getFrontController()->getParam('noViewRenderer')) {
return;
}
$this->initView();
}
/**
* Set view basePath specification
*
* Specification can contain one or more of the following:
* - :moduleDir - current module directory
* - :controller - name of current controller in the request
* - :action - name of current action in the request
* - :module - name of current module in the request
*
* @param string $path
* @return Zend_Controller_Action_Helper_ViewRenderer Provides a fluent interface
*/
public function setViewBasePathSpec($path)
{
$this->_viewBasePathSpec = (string) $path;
return $this;
}
/**
* Retrieve the current view basePath specification string
*
* @return string
*/
public function getViewBasePathSpec()
{
return $this->_viewBasePathSpec;
}
/**
* Set view script path specification
*
* Specification can contain one or more of the following:
* - :moduleDir - current module directory
* - :controller - name of current controller in the request
* - :action - name of current action in the request
* - :module - name of current module in the request
*
* @param string $path
* @return Zend_Controller_Action_Helper_ViewRenderer Provides a fluent interface
*/
public function setViewScriptPathSpec($path)
{
$this->_viewScriptPathSpec = (string) $path;
return $this;
}
/**
* Retrieve the current view script path specification string
*
* @return string
*/
public function getViewScriptPathSpec()
{
return $this->_viewScriptPathSpec;
}
/**
* Set view script path specification (no controller variant)
*
* Specification can contain one or more of the following:
* - :moduleDir - current module directory
* - :controller - name of current controller in the request
* - :action - name of current action in the request
* - :module - name of current module in the request
*
* :controller will likely be ignored in this variant.
*
* @param string $path
* @return Zend_Controller_Action_Helper_ViewRenderer Provides a fluent interface
*/
public function setViewScriptPathNoControllerSpec($path)
{
$this->_viewScriptPathNoControllerSpec = (string) $path;
return $this;
}
/**
* Retrieve the current view script path specification string (no controller variant)
*
* @return string
*/
public function getViewScriptPathNoControllerSpec()
{
return $this->_viewScriptPathNoControllerSpec;
}
/**
* Get a view script based on an action and/or other variables
*
* Uses values found in current request if no values passed in $vars.
*
* If {@link $_noController} is set, uses {@link $_viewScriptPathNoControllerSpec};
* otherwise, uses {@link $_viewScriptPathSpec}.
*
* @param string $action
* @param array $vars
* @return string
*/
public function getViewScript($action = null, array $vars = array())
{
$request = $this->getRequest();
if ((null === $action) && (!isset($vars['action']))) {
$action = $this->getScriptAction();
if (null === $action) {
$action = $request->getActionName();
}
$vars['action'] = $action;
} elseif (null !== $action) {
$vars['action'] = $action;
}
$inflector = $this->getInflector();
if ($this->getNoController() || $this->getNeverController()) {
$this->_setInflectorTarget($this->getViewScriptPathNoControllerSpec());
} else {
$this->_setInflectorTarget($this->getViewScriptPathSpec());
}
return $this->_translateSpec($vars);
}
/**
* Set the neverRender flag (i.e., globally dis/enable autorendering)
*
* @param boolean $flag
* @return Zend_Controller_Action_Helper_ViewRenderer Provides a fluent interface
*/
public function setNeverRender($flag = true)
{
$this->_neverRender = ($flag) ? true : false;
return $this;
}
/**
* Retrieve neverRender flag value
*
* @return boolean
*/
public function getNeverRender()
{
return $this->_neverRender;
}
/**
* Set the noRender flag (i.e., whether or not to autorender)
*
* @param boolean $flag
* @return Zend_Controller_Action_Helper_ViewRenderer Provides a fluent interface
*/
public function setNoRender($flag = true)
{
$this->_noRender = ($flag) ? true : false;
return $this;
}
/**
* Retrieve noRender flag value
*
* @return boolean
*/
public function getNoRender()
{
return $this->_noRender;
}
/**
* Set the view script to use
*
* @param string $name
* @return Zend_Controller_Action_Helper_ViewRenderer Provides a fluent interface
*/
public function setScriptAction($name)
{
$this->_scriptAction = (string) $name;
return $this;
}
/**
* Retrieve view script name
*
* @return string
*/
public function getScriptAction()
{
return $this->_scriptAction;
}
/**
* Set the response segment name
*
* @param string $name
* @return Zend_Controller_Action_Helper_ViewRenderer Provides a fluent interface
*/
public function setResponseSegment($name)
{
if (null === $name) {
$this->_responseSegment = null;
} else {
$this->_responseSegment = (string) $name;
}
return $this;
}
/**
* Retrieve named response segment name
*
* @return string
*/
public function getResponseSegment()
{
return $this->_responseSegment;
}
/**
* Set the noController flag (i.e., whether or not to render into controller subdirectories)
*
* @param boolean $flag
* @return Zend_Controller_Action_Helper_ViewRenderer Provides a fluent interface
*/
public function setNoController($flag = true)
{
$this->_noController = ($flag) ? true : false;
return $this;
}
/**
* Retrieve noController flag value
*
* @return boolean
*/
public function getNoController()
{
return $this->_noController;
}
/**
* Set the neverController flag (i.e., whether or not to render into controller subdirectories)
*
* @param boolean $flag
* @return Zend_Controller_Action_Helper_ViewRenderer Provides a fluent interface
*/
public function setNeverController($flag = true)
{
$this->_neverController = ($flag) ? true : false;
return $this;
}
/**
* Retrieve neverController flag value
*
* @return boolean
*/
public function getNeverController()
{
return $this->_neverController;
}
/**
* Set view script suffix
*
* @param string $suffix
* @return Zend_Controller_Action_Helper_ViewRenderer Provides a fluent interface
*/
public function setViewSuffix($suffix)
{
$this->_viewSuffix = (string) $suffix;
return $this;
}
/**
* Get view script suffix
*
* @return string
*/
public function getViewSuffix()
{
return $this->_viewSuffix;
}
/**
* Set options for rendering a view script
*
* @param string $action View script to render
* @param string $name Response named segment to render to
* @param boolean $noController Whether or not to render within a subdirectory named after the controller
* @return Zend_Controller_Action_Helper_ViewRenderer Provides a fluent interface
*/
public function setRender($action = null, $name = null, $noController = null)
{
if (null !== $action) {
$this->setScriptAction($action);
}
if (null !== $name) {
$this->setResponseSegment($name);
}
if (null !== $noController) {
$this->setNoController($noController);
}
return $this;
}
/**
* Inflect based on provided vars
*
* Allowed variables are:
* - :moduleDir - current module directory
* - :module - current module name
* - :controller - current controller name
* - :action - current action name
* - :suffix - view script file suffix
*
* @param array $vars
* @return string
*/
protected function _translateSpec(array $vars = array())
{
$inflector = $this->getInflector();
$request = $this->getRequest();
$dispatcher = $this->_frontController->getDispatcher();
$module = $dispatcher->formatModuleName($request->getModuleName());
$controller = $request->getControllerName();
$action = $dispatcher->formatActionName($request->getActionName());
$params = compact('module', 'controller', 'action');
foreach ($vars as $key => $value) {
switch ($key) {
case 'module':
case 'controller':
case 'action':
case 'moduleDir':
case 'suffix':
$params[$key] = (string) $value;
break;
default:
break;
}
}
if (isset($params['suffix'])) {
$origSuffix = $this->getViewSuffix();
$this->setViewSuffix($params['suffix']);
}
if (isset($params['moduleDir'])) {
$origModuleDir = $this->_getModuleDir();
$this->_setModuleDir($params['moduleDir']);
}
$filtered = $inflector->filter($params);
if (isset($params['suffix'])) {
$this->setViewSuffix($origSuffix);
}
if (isset($params['moduleDir'])) {
$this->_setModuleDir($origModuleDir);
}
return $filtered;
}
/**
* Render a view script (optionally to a named response segment)
*
* Sets the noRender flag to true when called.
*
* @param string $script
* @param string $name
* @return void
*/
public function renderScript($script, $name = null)
{
if (null === $name) {
$name = $this->getResponseSegment();
}
$this->getResponse()->appendBody(
$this->view->render($script),
$name
);
$this->setNoRender();
}
/**
* Render a view based on path specifications
*
* Renders a view based on the view script path specifications.
*
* @param string $action
* @param string $name
* @param boolean $noController
* @return void
*/
public function render($action = null, $name = null, $noController = null)
{
$this->setRender($action, $name, $noController);
$path = $this->getViewScript();
$this->renderScript($path, $name);
}
/**
* Render a script based on specification variables
*
* Pass an action, and one or more specification variables (view script suffix)
* to determine the view script path, and render that script.
*
* @param string $action
* @param array $vars
* @param string $name
* @return void
*/
public function renderBySpec($action = null, array $vars = array(), $name = null)
{
if (null !== $name) {
$this->setResponseSegment($name);
}
$path = $this->getViewScript($action, $vars);
$this->renderScript($path);
}
/**
* postDispatch - auto render a view
*
* Only autorenders if:
* - _noRender is false
* - action controller is present
* - request has not been re-dispatched (i.e., _forward() has not been called)
* - response is not a redirect
*
* @return void
*/
public function postDispatch()
{
if ($this->_shouldRender()) {
$this->render();
}
}
/**
* Should the ViewRenderer render a view script?
*
* @return boolean
*/
protected function _shouldRender()
{
return (!$this->getFrontController()->getParam('noViewRenderer')
&& !$this->_neverRender
&& !$this->_noRender
&& (null !== $this->_actionController)
&& $this->getRequest()->isDispatched()
&& !$this->getResponse()->isRedirect()
);
}
/**
* Use this helper as a method; proxies to setRender()
*
* @param string $action
* @param string $name
* @param boolean $noController
* @return void
*/
public function direct($action = null, $name = null, $noController = null)
{
$this->setRender($action, $name, $noController);
}
}
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