/**
* Invoke a command by calling all the registered callbacks
*
* @param string|KCommandInterface $command The command name or a KCommandInterface object
* @param array|Traversable $attributes An associative array or a Traversable object
* @param KObjectInterface $subject The command subject
* @return mixed|null If a callback break, returns the break condition. NULL otherwise.
*/
public function invokeCallbacks($command, $attributes = null, $subject = null)
{
//Make sure we have an command object
if (!$command instanceof KCommandInterface) {
if ($attributes instanceof KCommandInterface) {
$name = $command;
$command = $attributes;
$command->setName($name);
} else {
$command = new KCommand($command, $attributes, $subject);
}
}
foreach ($this->getCommandCallbacks($command->getName()) as $handler) {
$method = $handler['method'];
$params = $handler['params'];
if (is_string($method)) {
$result = $this->invokeCommandCallback($method, $command->append($params));
} else {
$result = $method($command->append($params));
}
if ($result !== null && $result === $this->getBreakCondition()) {
return $result;
}
}
}
