SimplePagination.php

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<?php
 
declare(strict_types=1);
 
/*
 * This file is part of the TYPO3 CMS project.
 *
 * It is free software; you can redistribute it and/or modify it under
 * the terms of the GNU General Public License, either version 2
 * of the License, or any later version.
 *
 * For the full copyright and license information, please read the
 * LICENSE.txt file that was distributed with this source code.
 *
 * The TYPO3 project - inspiring people to share!
 */
 
namespace ‪TYPO3\CMS\Core\Pagination;
 
final class ‪SimplePagination implements ‪PaginationInterface
{
    protected ‪$paginator;
 
    public function ‪__construct(‪PaginatorInterface ‪$paginator)
    {
        $this->paginator = ‪$paginator;
    }
 
    public function ‪getPreviousPageNumber(): ?int
    {
        $previousPage = $this->paginator->getCurrentPageNumber() - 1;
 
        if ($previousPage > $this->paginator->getNumberOfPages()) {
            return null;
        }
 
        return $previousPage >= $this->‪getFirstPageNumber()
            ? $previousPage
            : null
        ;
    }
 
    public function ‪getNextPageNumber(): ?int
    {
        $nextPage = $this->paginator->getCurrentPageNumber() + 1;
 
        return $nextPage <= $this->paginator->getNumberOfPages()
            ? $nextPage
            : null
        ;
    }
 
    public function ‪getFirstPageNumber(): int
    {
        return 1;
    }
 
    public function ‪getLastPageNumber(): int
    {
        return $this->paginator->getNumberOfPages();
    }
 
    public function ‪getStartRecordNumber(): int
    {
        if ($this->paginator->getCurrentPageNumber() > $this->paginator->getNumberOfPages()) {
            return 0;
        }
 
        return $this->paginator->getKeyOfFirstPaginatedItem() + 1;
    }
 
    public function ‪getEndRecordNumber(): int
    {
        if ($this->paginator->getCurrentPageNumber() > $this->paginator->getNumberOfPages()) {
            return 0;
        }
 
        return $this->paginator->getKeyOfLastPaginatedItem() + 1;
    }
 
    public function ‪getAllPageNumbers(): array
    {
        return range($this->‪getFirstPageNumber(), $this->‪getLastPageNumber());
    }
}