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     protected $entityContextManager;
  12
  13     /**
  14      * BreadcrumbsViewComposer constructor.
  15      *
  16      * @param ShelfContext $entityContextManager
  17      */
  18     public function __construct(ShelfContext $entityContextManager)
  19     {
  20         $this->entityContextManager = $entityContextManager;
  21     }
  22
  23     /**
  24      * Modify data when the view is composed.
  25      *
  26      * @param View $view
  27      */
  28     public function compose(View $view)
  29     {
  30         $crumbs = $view->getData()['crumbs'];
  31         $firstCrumb = $crumbs[0] ?? null;
  32         if ($firstCrumb instanceof Book) {
  33             $shelf = $this->entityContextManager->getContextualShelfForBook($firstCrumb);
  34             if ($shelf) {
  35                 array_unshift($crumbs, $shelf);
  36                 $view->with('crumbs', $crumbs);
  37             }
  38         }
  39     }
  40 }