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<?php |
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declare(strict_types=1); |
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/* |
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* This file is part of the Extension "sf_event_mgt" for TYPO3 CMS. |
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* |
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* For the full copyright and license information, please read the |
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* LICENSE.txt file that was distributed with this source code. |
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*/ |
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namespace DERHANSEN\SfEventMgt\Pagination; |
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use TYPO3\CMS\Core\Pagination\PaginationInterface; |
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use TYPO3\CMS\Core\Pagination\PaginatorInterface; |
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final class NumberedPagination implements PaginationInterface |
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{ |
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protected PaginatorInterface $paginator; |
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protected int $maximumNumberOfLinks = 10; |
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protected int $displayRangeStart = 0; |
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protected int $displayRangeEnd = 0; |
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protected bool $hasLessPages = false; |
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protected bool $hasMorePages = false; |
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public function __construct(PaginatorInterface $paginator, int $maximumNumberOfLinks = 0) |
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{ |
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$this->paginator = $paginator; |
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if ($maximumNumberOfLinks > 0) { |
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$this->maximumNumberOfLinks = $maximumNumberOfLinks; |
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} |
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$this->calculateDisplayRange(); |
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} |
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public function getPreviousPageNumber(): ?int |
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{ |
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$previousPage = $this->paginator->getCurrentPageNumber() - 1; |
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if ($previousPage > $this->paginator->getNumberOfPages()) { |
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return null; |
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} |
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return $previousPage >= $this->getFirstPageNumber() |
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? $previousPage |
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: null; |
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} |
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public function getNextPageNumber(): ?int |
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{ |
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$nextPage = $this->paginator->getCurrentPageNumber() + 1; |
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return $nextPage <= $this->paginator->getNumberOfPages() |
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? $nextPage |
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: null; |
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} |
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public function getFirstPageNumber(): int |
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{ |
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return 1; |
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} |
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public function getLastPageNumber(): int |
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{ |
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return $this->paginator->getNumberOfPages(); |
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} |
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public function getStartRecordNumber(): int |
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{ |
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if ($this->paginator->getCurrentPageNumber() > $this->paginator->getNumberOfPages()) { |
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return 0; |
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} |
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return $this->paginator->getKeyOfFirstPaginatedItem() + 1; |
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} |
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public function getEndRecordNumber(): int |
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{ |
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if ($this->paginator->getCurrentPageNumber() > $this->paginator->getNumberOfPages()) { |
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return 0; |
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} |
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return $this->paginator->getKeyOfLastPaginatedItem() + 1; |
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} |
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/** |
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* @return int[] |
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*/ |
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public function getAllPageNumbers(): array |
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{ |
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return range($this->displayRangeStart, $this->displayRangeEnd); |
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} |
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public function getHasLessPages(): bool |
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{ |
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return $this->hasLessPages; |
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} |
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public function getHasMorePages(): bool |
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{ |
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return $this->hasMorePages; |
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} |
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public function getMaximumNumberOfLinks(): int |
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{ |
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return $this->maximumNumberOfLinks; |
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} |
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public function getDisplayRangeStart(): int |
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{ |
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return $this->displayRangeStart; |
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} |
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public function getDisplayRangeEnd(): int |
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{ |
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return $this->displayRangeEnd; |
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} |
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protected function calculateDisplayRange(): void |
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{ |
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$numberOfPages = $this->paginator->getNumberOfPages(); |
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$currentPage = $this->paginator->getCurrentPageNumber(); |
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$maximumNumberOfLinks = $this->maximumNumberOfLinks; |
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if ($maximumNumberOfLinks > $numberOfPages) { |
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$maximumNumberOfLinks = $numberOfPages; |
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} |
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$delta = floor($maximumNumberOfLinks / 2); |
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$this->displayRangeStart = (int)($currentPage - $delta); |
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$this->displayRangeEnd = (int)($currentPage + $delta - ($maximumNumberOfLinks % 2 === 0 ? 1 : 0)); |
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if ($this->displayRangeStart < 1) { |
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$this->displayRangeEnd -= $this->displayRangeStart - 1; |
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} |
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if ($this->displayRangeEnd > $numberOfPages) { |
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$this->displayRangeStart -= $this->displayRangeEnd - $numberOfPages; |
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} |
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$this->displayRangeStart = (integer)max($this->displayRangeStart, 1); |
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$this->displayRangeEnd = (integer)min($this->displayRangeEnd, $numberOfPages); |
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$this->hasLessPages = $this->displayRangeStart > 2; |
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$this->hasMorePages = $this->displayRangeEnd + 1 < $this->paginator->getNumberOfPages(); |
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} |
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public function getPaginator(): PaginatorInterface |
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{ |
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return $this->paginator; |
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} |
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} |
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derhansen /
sf_event_mgt
