BookStack Code Mirror - bookstack/blob - app/Entities/Tools/PageIncludeContent.php

   1 <?php
   2
   3 namespace BookStack\Entities\Tools;
   4
   5 use BookStack\Util\HtmlDocument;
   6 use DOMNode;
   7
   8 class PageIncludeContent
   9 {
  10     protected static array $topLevelTags = ['table', 'ul', 'ol', 'pre'];
  11
  12     /**
  13      * @var DOMNode[]
  14      */
  15     protected array $contents = [];
  16
  17     protected bool $isTopLevel = false;
  18
  19     public function __construct(
  20         string $html,
  21         PageIncludeTag $tag,
  22     ) {
  23         $this->parseHtml($html, $tag);
  24     }
  25
  26     protected function parseHtml(string $html, PageIncludeTag $tag): void
  27     {
  28         if (empty($html)) {
  29             return;
  30         }
  31
  32         $doc = new HtmlDocument($html);
  33
  34         $sectionId = $tag->getSectionId();
  35         if (!$sectionId) {
  36             $this->contents = [...$doc->getBodyChildren()];
  37             $this->isTopLevel = true;
  38             return;
  39         }
  40
  41         $section = $doc->getElementById($sectionId);
  42         if (!$section) {
  43             return;
  44         }
  45
  46         $isTopLevel = in_array(strtolower($section->nodeName), static::$topLevelTags);
  47         $this->isTopLevel = $isTopLevel;
  48         $this->contents = $isTopLevel ? [$section] : [...$section->childNodes];
  49     }
  50
  51     public function isInline(): bool
  52     {
  53         return !$this->isTopLevel;
  54     }
  55
  56     public function isEmpty(): bool
  57     {
  58         return empty($this->contents);
  59     }
  60
  61     /**
  62      * @return DOMNode[]
  63      */
  64     public function toDomNodes(): array
  65     {
  66         return $this->contents;
  67     }
  68 }