Link::saveNode

static function saveNode(BitrixLandingBlock $block, $selector, array $data): array
{
	$result = [];
	$manifest = $block->getManifest();
	$globalSkipContent = false;
	if ($manifest['nodes'][$selector]['skipContent'] ?? false)
	{
		$globalSkipContent = true;
	}

	$doc = $block->getDom();
	$resultList = $doc->querySelectorAll($selector);
	$valueBefore = static::getNode($block, $selector);
	$isIframe = self::isFrame();

	foreach ($data as $pos => $value)
	{
		$text = (isset($value['text']) && is_string($value['text'])) ? trim($value['text']) : '';
		$href = (isset($value['href']) && is_string($value['href'])) ? trim($value['href']) : '';
		$query = (isset($value['query']) && is_string($value['query'])) ? trim($value['query']) : '';
		$target = (isset($value['target']) && is_string($value['target'])) ? trim(mb_strtolower($value['target'])) : '';
		$attrs = isset($value['attrs']) ? (array)$value['attrs'] : array();
		$skipContent = $globalSkipContent || (isset($value['skipContent']) ? (boolean)$value['skipContent'] : false);
		$result[$pos]['attrs'] = [];

		if ($query)
		{
			$href .= (mb_strpos($href, '?') === false && !$isIframe) ? '?' : '&';
			$href .= $query;
		}

		if (isset($value['text']) && !$text)
		{
			$text = ' ';
		}

		if (isset($resultList[$pos]))
		{
			if (
				$text &&
				!$skipContent &&
				trim($resultList[$pos]->getTextContent()) != ''
			)
			{
				$text = htmlspecialcharsbx($text);
				$result[$pos]['content'] = $text;
				$resultList[$pos]->setInnerHTML($text);
			}

			if ($href != '')
			{
				$result[$pos]['attrs']['href'] = $href;
				$resultList[$pos]->setAttribute('href', $href);
			}

			if (self::isAllowedTarget($target))
			{
				$result[$pos]['attrs']['target'] = $target;
				$resultList[$pos]->setAttribute('target', $target);
			}

			$allowedAttrs = self::allowedAttrs();
			if (!empty($attrs))
			{
				foreach ($attrs as $code => $val)
				{
					if ($val && in_array($code, $allowedAttrs))
					{
						$result[$pos]['attrs'][$code] = $val;
						$resultList[$pos]->setAttribute($code, $val);
					}
				}
			}
			else
			{
				foreach ($allowedAttrs as $attr)
				{
					$resultList[$pos]->removeAttribute($attr);
				}
			}

			if (History::isActive())
			{
				$history = new History($block->getLandingId(), History::ENTITY_TYPE_LANDING);
				$history->push('EDIT_LINK', [
					'block' => $block,
					'selector' => $selector,
					'position' => (int)$pos,
					'valueBefore' => $valueBefore[$pos],
					'valueAfter' => $value,
				]);
			}
		}
	}

	return $result;
}