<?php
declare(strict_types=1);
/*
* This file is part of the league/commonmark package.
*
* (c) Colin O'Dell <colinodell@gmail.com>
*
* Original code based on the CommonMark JS reference parser (https://bitly.com/commonmark-js)
* - (c) John MacFarlane
*
* For the full copyright and license information, please view the LICENSE
* file that was distributed with this source code.
*/
namespace League\CommonMark\Extension\CommonMark\Renderer\Block;
use League\CommonMark\Extension\CommonMark\Node\Block\ListItem;
use League\CommonMark\Node\Block\AbstractBlock;
use League\CommonMark\Node\Block\Paragraph;
use League\CommonMark\Node\Block\TightBlockInterface;
use League\CommonMark\Node\Node;
use League\CommonMark\Renderer\ChildNodeRendererInterface;
use League\CommonMark\Renderer\NodeRendererInterface;
use League\CommonMark\Util\HtmlElement;
use League\CommonMark\Xml\XmlNodeRendererInterface;
final class ListItemRenderer implements NodeRendererInterface, XmlNodeRendererInterface
{
/**
* @param ListItem $node
*
* {@inheritDoc}
*
* @psalm-suppress MoreSpecificImplementedParamType
*/
public function render(Node $node, ChildNodeRendererInterface $childRenderer): \Stringable
{
ListItem::assertInstanceOf($node);
$contents = $childRenderer->renderNodes($node->children());
$inTightList = ($parent = $node->parent()) && $parent instanceof TightBlockInterface && $parent->isTight();
if ($this->needsBlockSeparator($node->firstChild(), $inTightList)) {
$contents = "\n" . $contents;
}
if ($this->needsBlockSeparator($node->lastChild(), $inTightList)) {
$contents .= "\n";
}
$attrs = $node->data->get('attributes');
return new HtmlElement('li', $attrs, $contents);
}
public function getXmlTagName(Node $node): string
{
return 'item';
}
/**
* {@inheritDoc}
*/
public function getXmlAttributes(Node $node): array
{
return [];
}
private function needsBlockSeparator(?Node $child, bool $inTightList): bool
{
if ($child instanceof Paragraph && $inTightList) {
return false;
}
return $child instanceof AbstractBlock;
}
}