TreeMultiSelect.php

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<?php

declare(strict_types=1);

namespace ILIAS\UI\Implementation\Component\Input\Field;

use ILIAS\UI\Component as C;
use ILIAS\Language\Language;
use ILIAS\Refinery\Constraint;
use ILIAS\Refinery\Factory as Refinery;
use ILIAS\Data\Factory as DataFactory;

class TreeMultiSelect extends HasDynamicInputs implements C\Input\Field\TreeMultiSelect
{
    protected bool $can_select_child_nodes = false;

    public function __construct(
        Language $language,
        DataFactory $data_factory,
        Refinery $refinery,
        C\Input\Container\Form\FormInput $dynamic_input_template,
        protected C\Input\Field\Node\NodeRetrieval $node_retrieval,
        string $label,
        ?string $byline = null
    ) {
        parent::__construct(
            $language,
            $data_factory,
            $refinery,
            $dynamic_input_template,
            $label,
            $byline
        );
    }

    public function withSelectChildNodes(bool $is_allowed): static
    {
        $clone = clone $this;
        $clone->can_select_child_nodes = $is_allowed;
        return $clone;
    }

    public function canSelectChildNodes(): bool
    {
        return $this->can_select_child_nodes;
    }

    public function getNodeRetrieval(): C\Input\Field\Node\NodeRetrieval
    {
        return $this->node_retrieval;
    }

    public function getUpdateOnLoadCode(): \Closure
    {
        return static fn($id) => '';
    }

    protected function getConstraintForRequirement(): ?Constraint
    {
        if ($this->requirement_constraint !== null) {
            return $this->requirement_constraint;
        }

        return $this->refinery->custom()->constraint(
            static fn($value) => is_array($value) && 1 <= count($value),
            sprintf($this->language->txt('not_greater_than_or_equal'), 1)
        );
    }

    protected function isClientSideValueOk($value): bool
    {
        if (!is_array($value)) {
            return false;
        }
        foreach ($value as $_value) {
            if (!is_string($_value) && !is_int($_value)) {
                return false;
            }
        }
        return parent::isClientSideValueOk($value);
    }
}