/**
* Dispatches an event to all registered listeners.
*
* @param string $eventName The name of the event to dispatch. The name of the event is
* the name of the method that is invoked on listeners.
* @param EventArgs $eventArgs The event arguments to pass to the event handlers/listeners.
* If not supplied, the single empty EventArgs instance is used.
* @return boolean
*/
public function dispatchEvent($eventName, EventArgs $eventArgs = null)
{
if (isset($this->_listeners[$eventName])) {
$eventArgs = $eventArgs === null ? EventArgs::getEmptyInstance() : $eventArgs;
foreach ($this->_listeners[$eventName] as $listener) {
$listener->{$eventName}($eventArgs);
}
}
}
/**
* @since 1.3
* @param mixed $options
*/
public function setOptions(array $options)
{
$this->isOptionsChanged = parent::getOptions() !== $options;
$this->changedOptions = $this->isOptionsChanged ? $options : null;
}
public function setData($data)
{
$this->isDataChanged = parent::getData() !== $data;
$this->changedData = $this->isDataChanged ? $data : null;
}