1<?php
2
3/*
4 * This file is part of the league/commonmark package.
5 *
6 * (c) Colin O'Dell <colinodell@gmail.com>
7 *
8 * Original code based on the CommonMark JS reference parser (https://bitly.com/commonmark-js)
9 *  - (c) John MacFarlane
10 *
11 * For the full copyright and license information, please view the LICENSE
12 * file that was distributed with this source code.
13 */
14
15namespace League\CommonMark\Block\Renderer;
16
17use League\CommonMark\Block\Element\AbstractBlock;
18use League\CommonMark\Block\Element\BlockQuote;
19use League\CommonMark\ElementRendererInterface;
20use League\CommonMark\HtmlElement;
21
22final class BlockQuoteRenderer implements BlockRendererInterface
23{
24    /**
25     * @param BlockQuote               $block
26     * @param ElementRendererInterface $htmlRenderer
27     * @param bool                     $inTightList
28     *
29     * @return HtmlElement
30     */
31    public function render(AbstractBlock $block, ElementRendererInterface $htmlRenderer, bool $inTightList = false)
32    {
33        if (!($block instanceof BlockQuote)) {
34            throw new \InvalidArgumentException('Incompatible block type: ' . \get_class($block));
35        }
36
37        $attrs = $block->getData('attributes', []);
38
39        $filling = $htmlRenderer->renderBlocks($block->children());
40        if ($filling === '') {
41            return new HtmlElement('blockquote', $attrs, $htmlRenderer->getOption('inner_separator', "\n"));
42        }
43
44        return new HtmlElement(
45            'blockquote',
46            $attrs,
47            $htmlRenderer->getOption('inner_separator', "\n") . $filling . $htmlRenderer->getOption('inner_separator', "\n")
48        );
49    }
50}
51