PHP 日记 - 源码修改

抽空对 Typecho 作出了修改，主要为：优化评论嵌套样式、增加评论关联、增加代码块复制按钮。因涉及源码修改，本文章仅为回顾记录，以便日后定位相同问题。

优化评论嵌套样式

定位：var/Widget/Comments/Archive.php。

• 取消子评论倒叙 #264；

  if ('DESC' == $this->options->commentsOrder) {
      $this->stack = array_reverse($this->stack, true);
      #取消子评论倒叙 $this->_threadedComments = array_map('array_reverse', $this->_threadedComments);
  }

• 取消嵌套评论不可回复 #470。

  public function reply($word = '')
  {
      #取消嵌套评论不可回复 if ($this->options->commentsThreaded && !$this->isTopLevel && $this->parameter->allowComment) {
      if ($this->options->commentsThreaded && $this->parameter->allowComment) {
          $word = empty($word) ? _t('回复') : $word;
          $this->pluginHandle()->trigger($plugged)->reply($word, $this);
          
          if (!$plugged) {
              echo '<a href="' . substr($this->permalink, 0, - strlen($this->theId) - 1) . '?replyTo=' . $this->coid .
                  '#' . $this->parameter->respondId . '" rel="nofollow" onclick="return TypechoComment.reply(\'' .
                  $this->theId . '\', ' . $this->coid . ');">' . $word . '</a>';
          }
      }
  }

增加评论关联

• 回复按钮上移 #116、增加@回复 #120、适配评论时间链接 #108。

  <div class="comment-meta">
      <a href="#<?php $this->theID(); ?>"><time itemprop="commentTime" datetime="<?php $this->date('c'); ?>"><?php $singleCommentOptions->beforeDate();
      $this->date($singleCommentOptions->dateFormat);
      $singleCommentOptions->afterDate(); ?></time></a>
      <?php if ('waiting' == $this->status) { ?>
      <em class="comment-awaiting-moderation"><?php $singleCommentOptions->commentStatus(); ?></em>
      <?php } ?>
  </div>
  <div class="comment-reply">
      <?php $this->reply($singleCommentOptions->replyWord); ?>
  </div>
  <div class="comment-content" itemprop="commentText">
  <?php // 增加@回复
      if ($this->isTopLevel) {
          $db = Typecho_Db::get();
          $table = $db->getPrefix();
          $query = $db->query('SELECT author, coid FROM '.$table.'comments WHERE status=\'approved\' AND coid IN (SELECT parent FROM '.$table.'comments WHERE coid='.$this->coid.' AND status=\'approved\')');
          $res = $db->fetchObject($query);
          echo('<p><a class="comment-author-reply" href="#comment-'.$res->coid.'">@'.$res->author.'</a>'.$this->text);
      } else {
          $this->content();
      }
  ?>
  </div>

增加代码块复制按钮

定位：var/HyperDown.php。

private function parseCode(array $lines, array $parts)
{
    list ($blank, $lang) = $parts;
    $lang = trim($lang);
    $count = strlen($blank);

    if (! preg_match("/^[_a-z0-9-\+\#\:\.]+$/i", $lang)) {
        $lang = NULL;
    } else {
        $parts = explode(':', $lang);
        if (count($parts) > 1) {
            list ($lang, $rel) = $parts;
            $lang = trim($lang);
            $rel = trim($rel);
        }
    }

    $lines = array_map(function ($line) use ($count) {
        return preg_replace("/^[ ]%24count/", '', $line);
    }, array_slice($lines, 1, -1));
    $str = implode("\n", $lines);

    return preg_match("/^\s*$/", $str) ? '' :
        '<div class="btn-layer"><div class="icon-btn btn-code" data-clipboard-action="copy"></div><pre><code' . (!empty($lang) ? " class=\"{$lang}\"" : '')
        . (!empty($rel) ? " rel=\"{$rel}\"" : '') . '>'
        . htmlspecialchars($str) . '</code></pre></div>';
}

<div class="btn-layer"><div class="icon-btn btn-code" data-clipboard-action="copy"></div>

private function makeFootnotes($html)
{
    if (count($this->_footnotes) > 0) {
        $html .= '<div class="footnotes"><hr><ol>';
        $index = 1;

        while ($val = array_shift($this->_footnotes)) {
            if (is_string($val)) {
                $val .= "<a href=\"#fnref-{$index}\" class=\"footnote-backref\">&#8629;</a>"; # &#8617;
            } else {
                $val[count($val) - 1] .= "¡<a href=\"#fnref-{$index}\" class=\"footnote-backref\">&#8629;</a>"; # &#8617;
                $val = count($val) > 1 ? $this->parse(implode("\n", $val)) : $this->parseInline($val[0]);
            }

            $html .= "<li id=\"fn-{$index}\">{$val}</li>";
            $index ++;
        }

        $html .= '</ol></div>';
    }

    return $html;
}