{

/** @var array */

private $parents;

/**

private $dependentCallbackParams;

/** @var callable */

private $dependentCallback;

/** @var bool */

private $disabledWhenEmpty;

/** @var mixed */

private $tempValue;

/**

public function getControl() : Nette\Utils\Html

{

$this->tryLoadItems();

$attrs = [];

$control = parent::getControl();

$form = $this->getForm();

$parents = [];

foreach ($this->parents as $parent) {

$parents[$this->getNormalizeName($parent)] = $parent->getHtmlId();

}

$params = [];

foreach ($this->dependentCallbackParams as $param) {

$params[$this->getNormalizeName($param)] = $param->getHtmlId();

}

$attrs['data-dependentselectbox-parents'] = Nette\Utils\Json::encode($parents);

$attrs['data-dependentselectbox-params'] = Nette\Utils\Json::encode($params);

$attrs['data-dependentselectbox'] = $form->getPresenter()->link($this->lookupPath('Nette\\Application\\UI\\Presenter') . Nette\ComponentModel\IComponent::NAME_SEPARATOR . self::SIGNAL_NAME . '!');

$control->addAttributes($attrs);

return $control;

}

/**

public function getValue(): mixed

{

$this->tryLoadItems();

if (!in_array($this->tempValue, [null, '', []], true)) {

return $this->tempValue;

}

return parent::getValue();

}

/**

public function setValue($value)

{

$this->tempValue = $value;

return $this;

}

/**

public function setItems(array $items, bool $useKeys = true)

{

parent::setItems($items, $useKeys);

if (!in_array($this->tempValue, [null, '', []], true)) {

parent::setValue($this->tempValue);

}

return $this;

}

/**

private function getDependentData(array $args = [])

{

if ($this->dependentCallback === null) {

throw new NasExt\Forms\DependentCallbackException('Dependent callback for "' . $this->getHtmlId() . '" must be set!');

}

$dependentData = call_user_func_array($this->dependentCallback, $args);

if (!($dependentData instanceof NasExt\Forms\DependentData) && !($dependentData instanceof NasExt\Forms\Controls\DependentSelectBoxData)) {

throw new NasExt\Forms\DependentCallbackException('Callback for "' . $this->getHtmlId() . '" must return NasExt\\Forms\\DependentData instance!');

}

return $dependentData;

}

/**

public function setDependentCallback(callable $callback)

{

$this->dependentCallback = $callback;

return $this;

}

/**

public function setDependentCallbackParams(array $params)

{

$this->dependentCallbackParams = $params;

return $this;

}

/**

public function setDisabledWhenEmpty($value = true)

{

$this->disabledWhenEmpty = $value;

return $this;

}

/**

private function getNormalizeName(Nette\Forms\Controls\BaseControl $parent)

{

return str_replace('-', '_', $parent->getHtmlId());

}