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<?php
/*
* Event System Userguide
*
* https://github.com/opencart/opencart/wiki/Events-(script-notifications)-2.2.x.x
*/
class Event {
protected $registry;
protected $data = array();
public function __construct($registry) {
$this->registry = $registry;
}
public function register($trigger, Action $action) {
$this->data[$trigger][] = $action;
}
public function trigger($event, array $args = array()) {
foreach ($this->data as $trigger => $actions) {
if (preg_match('/^' . str_replace(array('\*', '\?'), array('.*', '.'), preg_quote($trigger, '/')) . '/', $event)) {
foreach ($actions as $action) {
$result = $action->execute($this->registry, $args);
if (!is_null($result) && !($result instanceof Exception)) {
return $result;
}
}
}
}
}
public function unregister($trigger, $route = '') {
if ($route) {
foreach ($this->data[$trigger] as $key => $action) {
if ($action->getId() == $route) {
unset($this->data[$trigger][$key]);
}
}
} else {
unset($this->data[$trigger]);
}
}
public function removeAction($trigger, $route) {
foreach ($this->data[$trigger] as $key => $action) {
if ($action->getId() == $route) {
unset($this->data[$trigger][$key]);
}
}
}
}