src/EventSubscriber/Content/ContentInTextTocSubscriber.php line 54

Open in your IDE?
  1. <?php
  3. namespace App\EventSubscriber\Content;
  5. use App\Entity\Content\Content;
  6. use App\Entity\Content\Text;
  7. use Symfony\Component\EventDispatcher\EventSubscriberInterface;
  8. use App\Event\Content\ContentDisplayEvent;
  9. use App\Entity\Menu\Item;
  10. use App\Service\Gatherer;
  11. use App\Text\Aliasifer;
  13. /**
  14.  * @author Przemysław Chrupek <przemyslaw.chrupek@avt.pl>
  15.  */
  16. class ContentInTextTocSubscriber implements EventSubscriberInterface
  17. {
  18.     /**
  19.      * @var Content
  20.      */
  21.     private $content;
  23.     /**
  24.      * @var Item
  25.      */
  26.     private $menuItem;
  28.     /**
  29.      * @var Gatherer
  30.      */
  31.     protected $gatherer;
  33.     /**
  34.      * @var Text
  35.      */
  36.     private $text;
  38.     private $breakpoint;
  40.     public function __construct(Gatherer $gatherer)
  41.     {
  42.         $this->gatherer = $gatherer;
  43.     }
  45.     public static function getSubscribedEvents()
  46.     {
  47.         return [
  48.             ContentDisplayEvent::NAME => [
  49.                 ['preContentDisplay', 102],
  50.             ]
  51.         ];
  52.     }
  54.     public function preContentDisplay(ContentDisplayEvent $event)
  55.     {
  56.         $this->content = $event->getContent();
  57.         $this->text = $this->content->getText();
  58.         $this->menuItem = $this->content->getMenuItem();
  60.         if (!$this->text instanceof Text || !$this->menuItem instanceof Item)
  61.             return;
  63.         $n = $this->regexPagebreak($this->text->getValue());
  65.         if (empty($this->breakpoint))
  66.             return;
  68.         $this->gatherer->add('contentToc', $this->breakpoint);
  69.     }
  71.     protected function regexPagebreak()
  72.     {
  73.         $n = 1;
  74.         $regex = "/\<pre.*?\>\{PAGEBREAK\|(.*)}.*?\<\/pre>/";
  76.         $this->text->setValue(preg_replace_callback($regex, [$this, 'prepareBreakpoint'], $this->text->getValue()));
  78.         if (!empty($this->breakpoint)) {
  79.             foreach ($this->breakpoint as $value) {
  80.                 if ($value['newPage'] == true) {
  81.                     $n++;
  82.                 }
  83.             }
  84.         }
  86.         return $n;
  87.     }
  89.     protected function prepareBreakpoint($matches)
  90.     {
  91.         $data = explode('|', $matches[1]);
  92.         $alias = Aliasifer::aliasify(html_entity_decode($data[0]));
  94.         $this->breakpoint[$alias]['title'] = html_entity_decode($data[0]);
  95.         $this->breakpoint[$alias]['alias'] = $alias;
  96.         $this->breakpoint[$alias]['newPage'] = isset($data[1]) ? true : false;
  98.         $newPage = isset($data[1]) ? ' toc-breakpoint-newpage' : '';
  100.         return '<div id="'.$alias.'" class="toc-breakpoint'. $newPage .'"></div>';
  101.     }
  102. }