BookStackApp_BookStack/app/Entities/Tools/Markdown/CustomListItemRenderer.php
2023-02-06 20:00:44 +00:00

44 lines
1.3 KiB
PHP

<?php
namespace BookStack\Entities\Tools\Markdown;
use League\CommonMark\Extension\CommonMark\Node\Block\ListItem;
use League\CommonMark\Extension\CommonMark\Renderer\Block\ListItemRenderer;
use League\CommonMark\Extension\TaskList\TaskListItemMarker;
use League\CommonMark\Node\Block\Paragraph;
use League\CommonMark\Node\Node;
use League\CommonMark\Renderer\ChildNodeRendererInterface;
use League\CommonMark\Renderer\NodeRendererInterface;
use League\CommonMark\Util\HtmlElement;
class CustomListItemRenderer implements NodeRendererInterface
{
protected ListItemRenderer $baseRenderer;
public function __construct()
{
$this->baseRenderer = new ListItemRenderer();
}
/**
* @return HtmlElement|string|null
*/
public function render(Node $node, ChildNodeRendererInterface $childRenderer)
{
$listItem = $this->baseRenderer->render($node, $childRenderer);
if ($node instanceof ListItem && $this->startsTaskListItem($node) && $listItem instanceof HtmlElement) {
$listItem->setAttribute('class', 'task-list-item');
}
return $listItem;
}
private function startsTaskListItem(ListItem $block): bool
{
$firstChild = $block->firstChild();
return $firstChild instanceof Paragraph && $firstChild->firstChild() instanceof TaskListItemMarker;
}
}