diff options
Diffstat (limited to 'lib/ext/MyParsedown.php')
| -rw-r--r-- | lib/ext/MyParsedown.php | 218 |
1 files changed, 218 insertions, 0 deletions
diff --git a/lib/ext/MyParsedown.php b/lib/ext/MyParsedown.php new file mode 100644 index 0000000..71dfa7f --- /dev/null +++ b/lib/ext/MyParsedown.php @@ -0,0 +1,218 @@ +<?php + +class MyParsedown extends ParsedownExtended { + + function __construct( + ?array $opts = null, + protected bool $useImagePreviews = false + ) { + $parsedown_opts = [ + 'tables' => [ + 'tablespan' => true + ] + ]; + if (!is_null($opts)) { + $parsedown_opts = array_merge($parsedown_opts, $opts); + } + parent::__construct($parsedown_opts); + + $this->InlineTypes['{'][] = 'FileAttach'; + $this->InlineTypes['{'][] = 'Image'; + $this->InlineTypes['{'][] = 'Video'; + $this->inlineMarkerList .= '{'; + } + + protected function inlineFileAttach($excerpt) { + if (preg_match('/^{fileAttach:([\w]{8})}{\/fileAttach}/', $excerpt['text'], $matches)) { + $random_id = $matches[1]; + $upload = uploads::getUploadByRandomId($random_id); + $result = [ + 'extent' => strlen($matches[0]), + 'element' => [ + 'name' => 'span', + 'text' => '', + ], + 'type' => '' + ]; + + if (!$upload) { + return $result; + } + + unset($result['element']['text']); + + $ctx = self::getSkinContext(); + $result['element']['rawHtml'] = $ctx->fileupload($upload->name, $upload->getDirectUrl(), $upload->note, $upload->getSize()); + + return $result; + } + } + + protected function inlineImage($excerpt) { + global $config; + + if (preg_match('/^{image:([\w]{8}),(.*?)}{\/image}/', $excerpt['text'], $matches)) { + $random_id = $matches[1]; + + $opts = [ + 'w' => 'auto', + 'h' => 'auto', + 'align' => 'left', + 'nolabel' => false, + ]; + $inputopts = explode(',', $matches[2]); + + foreach ($inputopts as $opt) { + if ($opt == 'nolabel') + $opts[$opt] = true; + else { + list($k, $v) = explode('=', $opt); + if (!isset($opts[$k])) + continue; + $opts[$k] = $v; + } + } + + $image = uploads::getUploadByRandomId($random_id); + $result = [ + 'extent' => strlen($matches[0]), + 'element' => [ + 'name' => 'span', + 'text' => '', + ], + 'type' => '' + ]; + + if (!$image) { + return $result; + } + + list($w, $h) = $image->getImagePreviewSize( + $opts['w'] == 'auto' ? null : $opts['w'], + $opts['h'] == 'auto' ? null : $opts['h'] + ); + $opts['w'] = $w; + // $opts['h'] = $h; + + if (!$this->useImagePreviews) + $image_url = $image->getDirectUrl(); + else + $image_url = $image->getDirectPreviewUrl($w, $h); + + unset($result['element']['text']); + + $ctx = self::getSkinContext(); + $result['element']['rawHtml'] = $ctx->image( + w: $opts['w'], + nolabel: $opts['nolabel'], + align: $opts['align'], + padding_top: round($h / $w * 100, 4), + may_have_alpha: $image->imageMayHaveAlphaChannel(), + + url: $image_url, + direct_url: $image->getDirectUrl(), + note: $image->note + ); + + return $result; + } + } + + protected function inlineVideo($excerpt) { + if (preg_match('/^{video:([\w]{8})(?:,(.*?))?}{\/video}/', $excerpt['text'], $matches)) { + $random_id = $matches[1]; + + $opts = [ + 'w' => 'auto', + 'h' => 'auto', + 'align' => 'left', + 'nolabel' => false, + ]; + $inputopts = !empty($matches[2]) ? explode(',', $matches[2]) : []; + + foreach ($inputopts as $opt) { + if ($opt == 'nolabel') + $opts[$opt] = true; + else { + list($k, $v) = explode('=', $opt); + if (!isset($opts[$k])) + continue; + $opts[$k] = $v; + } + } + + $video = uploads::getUploadByRandomId($random_id); + $result = [ + 'extent' => strlen($matches[0]), + 'element' => [ + 'name' => 'span', + 'text' => '', + ], + 'type' => '' + ]; + + if (!$video) { + return $result; + } + + $video_url = $video->getDirectUrl(); + + unset($result['element']['text']); + + $ctx = self::getSkinContext(); + $result['element']['rawHtml'] = $ctx->video( + url: $video_url, + w: $opts['w'], + h: $opts['h'] + ); + + return $result; + } + } + + protected function paragraph($line) { + if (preg_match('/^{fileAttach:([\w]{8})}{\/fileAttach}$/', $line['text'])) { + return $this->inlineFileAttach($line); + } + if (preg_match('/^{image:([\w]{8}),(?:.*?)}{\/image}/', $line['text'])) { + return $this->inlineImage($line); + } + if (preg_match('/^{video:([\w]{8})(?:,(?:.*?))?}{\/video}/', $line['text'])) { + return $this->inlineVideo($line); + } + return parent::paragraph($line); + } + + protected function blockFencedCodeComplete($block) { + if (!isset($block['element']['element']['attributes'])) { + return $block; + } + + $code = $block['element']['element']['text']; + $languageClass = $block['element']['element']['attributes']['class']; + $language = explode('-', $languageClass); + + if ($language[1] == 'term') { + $lines = explode("\n", $code); + for ($i = 0; $i < count($lines); $i++) { + $line = $lines[$i]; + if (str_starts_with($line, '$ ') || str_starts_with($line, '# ')) { + $lines[$i] = '<span class="term-prompt">'.substr($line, 0, 2).'</span>'.htmlspecialchars(substr($line, 2), ENT_NOQUOTES, 'UTF-8'); + } else { + $lines[$i] = htmlspecialchars($line, ENT_NOQUOTES, 'UTF-8'); + } + } + $block['element']['element']['rawHtml'] = implode("\n", $lines); + unset($block['element']['element']['text']); + + return $block; + } + + return parent::blockFencedCodeComplete($block); + } + + protected static function getSkinContext(): SkinContext { + return new SkinContext('\\skin\\markdown'); + } + +} |