nepada / form-renderer / 4584589568

<?php

declare(strict_types = 1);

namespace Nepada\FormRenderer\Macros;

use Latte;

use Nepada\FormRenderer\Helpers;

final class FormRendererMacros extends Latte\Macros\MacroSet

{

    public static function install(Latte\Compiler $compiler): void

    {

        $me = new static($compiler);

        $me->addMacro('class', null, null, [$me, 'macroClass']);

    }

    /**

     * Improved version of `n:class="..."` that supports array arguments, e.g. `n:class="firstClass, $condition ? [foo => true, bar => true], anotherClass"`.

     * This is especially useful in combination with instances of Nette\Utils\Html, so you can do stuff like `n:class="foo, $el->class"`.

     *

     * @param Latte\MacroNode $node

     * @param Latte\PhpWriter $writer

     * @return string

     * @throws Latte\CompileException

     */

    public function macroClass(Latte\MacroNode $node, Latte\PhpWriter $writer): string

    {

        if (isset($node->htmlNode->attrs['class'])) {

            throw new Latte\CompileException('It is not possible to combine class with n:class.');

        }

        $classListCode = '$_tmp = array_filter(array_merge(...array_map([\'' . Helpers::class . '\', \'parseClassList\'], %node.array)))';

        $code = 'if (' . $classListCode . ') echo \' class="\', %escape(implode(\' \', array_unique($_tmp))), \'"\';';

        return $writer->write($code);

    }

}