protected function registerCallbacks()
{
if (!empty($this->callbacks)) {
$selector = $this->getSelector();
$view = $this->getView();
foreach ($this->callbacks as $event => $callback) {
if (is_array($callback)) {
foreach ($callback as $function) {
if (!$function instanceof JsExpression) {
$function = new JsExpression($function);
}
$view->registerJs("jQuery('#{$selector}').on('{$event}', {$function});");
}
} else {
if (!$callback instanceof JsExpression) {
$callback = new JsExpression($callback);
}
$view->registerJs("jQuery('#{$selector}').on('{$event}', {$callback});");
}
}
}
}