BookStack Code Mirror - bookstack/blob - app/Entities/BreadcrumbsViewComposer.php

   1 <?php
   2
   3 namespace BookStack\Entities;
   4
   5 use BookStack\Entities\Models\Book;
   6 use BookStack\Entities\Tools\ShelfContext;
   7 use Illuminate\View\View;
   8
   9 class BreadcrumbsViewComposer
  10 {
  11     public function __construct(
  12         protected ShelfContext $shelfContext
  13     ) {
  14     }
  15
  16     /**
  17      * Modify data when the view is composed.
  18      */
  19     public function compose(View $view): void
  20     {
  21         $crumbs = $view->getData()['crumbs'];
  22         $firstCrumb = $crumbs[0] ?? null;
  23
  24         if ($firstCrumb instanceof Book) {
  25             $shelf = $this->shelfContext->getContextualShelfForBook($firstCrumb);
  26             if ($shelf) {
  27                 array_unshift($crumbs, $shelf);
  28                 $view->with('crumbs', $crumbs);
  29             }
  30         }
  31     }
  32 }