134 lines
2.9 KiB
PHP
134 lines
2.9 KiB
PHP
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<?php
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/**
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*
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* PHP 5
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*
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* CakePHP(tm) : Rapid Development Framework (http://cakephp.org)
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* Copyright (c) Cake Software Foundation, Inc. (http://cakefoundation.org)
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*
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* Licensed under The MIT License
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* For full copyright and license information, please see the LICENSE.txt
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* Redistributions of files must retain the above copyright notice.
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*
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* @copyright Copyright (c) Cake Software Foundation, Inc. (http://cakefoundation.org)
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* @link http://cakephp.org CakePHP(tm) Project
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* @package Cake.Observer
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* @since CakePHP(tm) v 2.1
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* @license MIT License (http://www.opensource.org/licenses/mit-license.php)
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*/
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/**
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* Represents the transport class of events across the system. It receives a name, subject and an optional
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* payload. The name can be any string that uniquely identifies the event across the application, while the subject
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* represents the object that the event applies to.
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*
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* @package Cake.Event
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*/
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class CakeEvent {
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/**
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* Name of the event
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*
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* @var string $name
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*/
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protected $_name = null;
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/**
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* The object this event applies to (usually the same object that generates the event)
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*
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* @var object
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*/
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protected $_subject;
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/**
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* Custom data for the method that receives the event
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*
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* @var mixed $data
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*/
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public $data = null;
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/**
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* Property used to retain the result value of the event listeners
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*
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* @var mixed $result
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*/
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public $result = null;
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/**
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* Flags an event as stopped or not, default is false
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*
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* @var boolean
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*/
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protected $_stopped = false;
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/**
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* Constructor
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*
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* @param string $name Name of the event
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* @param object $subject the object that this event applies to (usually the object that is generating the event)
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* @param mixed $data any value you wish to be transported with this event to it can be read by listeners
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*
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* ## Examples of usage:
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*
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* {{{
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* $event = new CakeEvent('Order.afterBuy', $this, array('buyer' => $userData));
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* $event = new CakeEvent('User.afterRegister', $UserModel);
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* }}}
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*
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*/
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public function __construct($name, $subject = null, $data = null) {
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$this->_name = $name;
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$this->data = $data;
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$this->_subject = $subject;
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}
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/**
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* Dynamically returns the name and subject if accessed directly
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*
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* @param string $attribute
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* @return mixed
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*/
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public function __get($attribute) {
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if ($attribute === 'name' || $attribute === 'subject') {
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return $this->{$attribute}();
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}
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}
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/**
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* Returns the name of this event. This is usually used as the event identifier
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*
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* @return string
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*/
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public function name() {
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return $this->_name;
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}
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/**
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* Returns the subject of this event
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*
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* @return string
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*/
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public function subject() {
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return $this->_subject;
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}
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/**
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* Stops the event from being used anymore
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*
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* @return void
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*/
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public function stopPropagation() {
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return $this->_stopped = true;
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}
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/**
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* Check if the event is stopped
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*
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* @return boolean True if the event is stopped
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*/
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public function isStopped() {
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return $this->_stopped;
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}
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}
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