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<?php
/* SVN FILE: $Id: component.php 7296 2008-06-27 09:09:03Z gwoo $ */
/**
*
* PHP versions 4 and 5
*
* CakePHP(tm) : Rapid Development Framework <http://www.cakephp.org/>
* Copyright 2005-2008, Cake Software Foundation, Inc.
* 1785 E. Sahara Avenue, Suite 490-204
* Las Vegas, Nevada 89104
*
* Licensed under The MIT License
* Redistributions of files must retain the above copyright notice.
*
* @filesource
* @copyright Copyright 2005-2008, Cake Software Foundation, Inc.
* @link http://www.cakefoundation.org/projects/info/cakephp CakePHP(tm) Project
* @package cake
* @subpackage cake.cake.libs.controller
* @since CakePHP(tm) v TBD
* @version $Revision: 7296 $
* @modifiedby $LastChangedBy: gwoo $
* @lastmodified $Date: 2008-06-27 02:09:03 -0700 (Fri, 27 Jun 2008) $
* @license http://www.opensource.org/licenses/mit-license.php The MIT License
*/
/**
* Handler for Controller::$components
*
* @package cake
* @subpackage cake.cake.libs.controller
*/
class Component extends Object {
/**
* Some vars from controller (plugin, name, base)
*
* @var object
* @access private
*/
var $__controllerVars = array('plugin' => null, 'name' => null, 'base' => null);
/**
* All loaded components
*
* @var object
* @access private
*/
var $__loaded = array();
/**
* Settings for loaded components.
*
* @var array
* @access private
**/
var $__settings = array();
/**
* Used to initialize the components for current controller
*
* @param object $controller Controller with components to load
* @access public
*/
function init(&$controller) {
if ($controller->components !== false && is_array($controller->components)) {
$this->__controllerVars = array(
'plugin' => $controller->plugin, 'name' => $controller->name, 'base' => $controller->base
);
if (!in_array('Session', $controller->components)) {
array_unshift($controller->components, 'Session');
}
$this->_loadComponents($controller);
}
}
/**
* Called before the Controller::beforeFilter()
*
* @param object $controller Controller with components to initialize
* @access public
*/
function initialize(&$controller) {
foreach (array_keys($this->__loaded) as $name) {
$component =& $this->__loaded[$name];
if (method_exists($component,'initialize') && $component->enabled === true) {
$settings = array();
if (isset($this->__settings[$name])) {
$settings = $this->__settings[$name];
}
$component->initialize($controller, $settings);
}
}
}
/**
* Called after the Controller::beforeFilter() and before the controller action
*
* @param object $controller Controller with components to startup
* @access public
*/
function startup(&$controller) {
foreach (array_keys($this->__loaded) as $name) {
$component =& $this->__loaded[$name];
if (method_exists($component,'startup') && $component->enabled === true) {
$component->startup($controller);
}
}
}
/**
* Called after the Controller::beforeRender(), after the view class is loaded, and before the Controller::render()
*
* @param object $controller Controller with components to beforeRender
* @access public
*/
function beforeRender(&$controller) {
foreach (array_keys($this->__loaded) as $name) {
$component =& $this->__loaded[$name];
if (method_exists($component,'beforeRender') && $component->enabled === true) {
$component->beforeRender($controller);
}
}
}
/**
* Called before Controller::redirect();
*
* @param object $controller Controller with components to beforeRedirect
* @access public
*/
function beforeRedirect(&$controller, $url, $status = null, $exit = true) {
$response = array();
foreach (array_keys($this->__loaded) as $name) {
$component =& $this->__loaded[$name];
if (method_exists($component,'beforeRedirect') && $component->enabled === true) {
$resp = $component->beforeRedirect($controller, $url, $status, $exit);
if ($resp === false) {
return false;
}
$response[] = $resp;
}
}
return $response;
}
/**
* Called after Controller::render() and before the output is printed to the browser
*
* @param object $controller Controller with components to shutdown
* @access public
*/
function shutdown(&$controller) {
foreach (array_keys($this->__loaded) as $name) {
$component =& $this->__loaded[$name];
if (method_exists($component,'shutdown') && $component->enabled === true) {
$component->shutdown($controller);
}
}
}
/**
* Load components used by this component.
*
* @param object $object Object with a Components array
* @param object $parent the parent of the current object
* @return void
* @access protected
*/
function _loadComponents(&$object, $parent = null) {
$components = $object->components;
$base = $this->__controllerVars['base'];
if (is_array($object->components)) {
$normal = Set::normalize($object->components);
foreach ($normal as $component => $config) {
$parts = preg_split('/\/|\./', $component);
if (count($parts) === 1) {
$plugin = $this->__controllerVars['plugin'] . '.';
} else {
$plugin = Inflector::underscore($parts['0']) . '.';
$component = array_pop($parts);
}
$componentCn = $component . 'Component';
if (!class_exists($componentCn)) {
if (is_null($plugin) || !App::import('Component', $plugin . $component)) {
if (!App::import('Component', $component)) {
$this->cakeError('missingComponentFile', array(array(
'className' => $this->__controllerVars['name'],
'component' => $component,
'file' => Inflector::underscore($component) . '.php',
'base' => $base,
'code' => 500
)));
return false;
}
}
if (!class_exists($componentCn)) {
$this->cakeError('missingComponentClass', array(array(
'className' => $this->__controllerVars['name'],
'component' => $component,
'file' => Inflector::underscore($component) . '.php',
'base' => $base,
'code' => 500
)));
return false;
}
}
if (isset($this->__loaded[$component])) {
$object->{$component} =& $this->__loaded[$component];
if (!empty($config) && isset($this->__settings[$component])) {
$this->__settings[$component] = array_merge($this->__settings[$component], $config);
} elseif (!empty($config)) {
$this->__settings[$component] = $config;
}
} else {
if ($componentCn == 'SessionComponent') {
$object->{$component} =& new $componentCn($base);
} else {
$object->{$component} =& new $componentCn();
}
$object->{$component}->enabled = true;
$this->__loaded[$component] =& $object->{$component};
if (!empty($config)) {
$this->__settings[$component] = $config;
}
}
if (isset($object->{$component}->components) && is_array($object->{$component}->components) && (!isset($object->{$component}->{$parent}))) {
$this->_loadComponents($object->{$component}, $component);
}
}
}
}
}
?>
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