37 lines
		
	
	
		
			937 B
		
	
	
	
		
			PHP
		
	
	
	
			
		
		
	
	
			37 lines
		
	
	
		
			937 B
		
	
	
	
		
			PHP
		
	
	
	
<?php namespace BookStack\Entities;
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use BookStack\Entities\Tools\ShelfContext;
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use Illuminate\View\View;
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class BreadcrumbsViewComposer
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{
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    protected $entityContextManager;
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    /**
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     * BreadcrumbsViewComposer constructor.
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     * @param ShelfContext $entityContextManager
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     */
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    public function __construct(ShelfContext $entityContextManager)
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    {
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        $this->entityContextManager = $entityContextManager;
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    }
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    /**
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     * Modify data when the view is composed.
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     * @param View $view
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     */
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    public function compose(View $view)
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    {
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        $crumbs = $view->getData()['crumbs'];
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        $firstCrumb = $crumbs[0] ?? null;
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        if ($firstCrumb instanceof Book) {
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            $shelf = $this->entityContextManager->getContextualShelfForBook($firstCrumb);
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            if ($shelf) {
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                array_unshift($crumbs, $shelf);
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                $view->with('crumbs', $crumbs);
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            }
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        }
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    }
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}
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