Icon::saveNode

static function saveNode(BitrixLandingBlock $block, $selector, array $data)
{
	$doc = $block->getDom();
	$resultList = $doc->querySelectorAll($selector);
	$valueBefore = static::getNode($block, $selector);

	foreach ($data as $pos => $value)
	{
		$classList = (isset($value['classList']) && is_array($value['classList']))
					? $value['classList']
					: (array)$value;
		$className = implode(' ', $classList);

		if (isset($value['url']))
		{
			$url = is_array($value['url'])
					? json_encode($value['url'])
					: $value['url'];
		}
		else
		{
			$url = '';
		}

		if ($classList)
		{
			if (isset($resultList[$pos]))
			{
				$resultList[$pos]->setAttribute('class', $className);
				if ($url)
				{
					$resultList[$pos]->setAttribute('data-pseudo-url', $url);
				}

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