static::on($class, $name, $handler, $data = null, $append = true)
self::$_events[$name][$class][] = [$handler, $data]
array_unshift(self::$_events[$name][$class], [$handler, $data])
static::off($class, $name, $handler = null)
unset(self::$_events[$name][$class])
foreach (self::$_events[$name][$class] as $i => $event)
unset(self::$_events[$name][$class][$i])
self::$_events[$name][$class] = array_values(self::$_events[$name][$class])
static::hasHandlers($class, $name)
$classes = array_merge(<br> [$class],<br> class_parents($class, true),<br> class_implements($class, true)<br> )
foreach ($classes as $class)
!empty(self::$_events[$name][$class])
static::trigger($class, $name, $event = null)
$event = new static
$event->handled = false
$event->name = $name
$event->sender = $class
$classes = array_merge(<br> [$class],<br> class_parents($class, true),<br> class_implements($class, true)<br>)
foreach ($classes as $class)
foreach (self::$_events[$name][$class] as $handler)
$event->data = $handler[1]
call_user_func($handler[0], $event)
