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<?php
declare(strict_types=1);
namespace Laminas\I18n\View\Helper;
use Laminas\Escaper\Escaper;
use Laminas\I18n\CountryCode;
use Laminas\I18n\Geography\CountryCodeListInterface;
use Laminas\View\HtmlAttributesSet;
use Locale;
use function array_map;
use function implode;
use function iterator_to_array;
use function sprintf;
use const PHP_EOL;
/**
* A View Helper that outputs an HTML datalist of all the ISO-3166 countries
*/
final class CountryCodeDataList
{
public function __construct(
private CountryCodeListInterface $codeList,
private Escaper $escaper,
private string $defaultLocale
) {
}
/**
* @param string|null $locale Must be a valid locale string - used to format the names of the countries
* @param array<string, scalar> $dataListAttributes An array of HTML attributes applied to the datalist element
*/
public function __invoke(?string $locale = null, array $dataListAttributes = []): string
{
$locale = $locale ?? $this->defaultLocale;
$list = array_map(function (CountryCode $code) use ($locale): string {
$name = Locale::getDisplayRegion('-' . $code->toString(), $locale);
return sprintf(
'<option value="%s" label="%s">',
$code->toString(),
$this->escaper->escapeHtmlAttr($name)
);
}, iterator_to_array($this->codeList));
$attributes = new HtmlAttributesSet($this->escaper, $dataListAttributes);
return sprintf(
'<datalist %s>%s</datalist>',
$attributes->__toString(),
implode(PHP_EOL, $list)
);
}
}