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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,192 @@ | ||
| <?php | ||
| declare(strict_types = 1); | ||
|
|
||
| /* | ||
| * This file is part of the package t3g/blog. | ||
| * | ||
| * For the full copyright and license information, please read the | ||
| * LICENSE file that was distributed with this source code. | ||
| */ | ||
|
|
||
| namespace T3G\AgencyPack\Blog\Pagination; | ||
|
|
||
| use TYPO3\CMS\Core\Pagination\PaginationInterface; | ||
| use TYPO3\CMS\Core\Pagination\PaginatorInterface; | ||
|
|
||
| final class BlogPagination implements PaginationInterface | ||
| { | ||
| /** | ||
| * @var int | ||
| */ | ||
| protected $maximumNumberOfLinks = 10; | ||
|
|
||
| /** | ||
| * @var int | ||
| */ | ||
| protected $displayRangeStart = 0; | ||
|
|
||
| /** | ||
| * @var int | ||
| */ | ||
| protected $displayRangeEnd = 0; | ||
|
|
||
| /** | ||
| * @var PaginatorInterface | ||
| */ | ||
| protected $paginator; | ||
|
|
||
| public function __construct(PaginatorInterface $paginator, int $maximumNumberOfLinks = 10) | ||
| { | ||
| $this->paginator = $paginator; | ||
| $this->maximumNumberOfLinks = $maximumNumberOfLinks > 0 ? $maximumNumberOfLinks : 1; | ||
| $this->displayRangeStart = $this->getFirstPageNumber(); | ||
| $this->displayRangeEnd = $this->getLastPageNumber(); | ||
|
|
||
| $this->generateDisplayRange(); | ||
| } | ||
|
|
||
| protected function generateDisplayRange(): void | ||
| { | ||
| $currentPageNumber = $this->getCurrentPageNumber(); | ||
| $maximumNumberOfLinks = $this->getMaximumNumberOfLinks(); | ||
| $delta = (int) floor($maximumNumberOfLinks / 2); | ||
| if ($this->getNumberOfPages() > $maximumNumberOfLinks) { | ||
| $this->displayRangeStart = $currentPageNumber - $delta; | ||
| $this->displayRangeEnd = $this->displayRangeStart + $maximumNumberOfLinks - 1; | ||
| while ($this->displayRangeStart < $this->getFirstPageNumber()) { | ||
| $this->displayRangeStart++; | ||
| $this->displayRangeEnd++; | ||
| } | ||
| while ($this->displayRangeEnd > $this->getLastPageNumber()) { | ||
| $this->displayRangeStart--; | ||
| $this->displayRangeEnd--; | ||
| } | ||
| } | ||
| } | ||
|
|
||
| public function getPreviousPageNumber(): ?int | ||
| { | ||
| $previousPage = $this->paginator->getCurrentPageNumber() - 1; | ||
|
|
||
| if ($previousPage > $this->paginator->getNumberOfPages()) { | ||
| return null; | ||
| } | ||
|
|
||
| return $previousPage >= $this->getFirstPageNumber() | ||
| ? $previousPage | ||
| : null; | ||
| } | ||
|
|
||
| public function getCurrentPageNumber(): int | ||
| { | ||
| return $this->paginator->getCurrentPageNumber() ?? 1; | ||
| } | ||
|
|
||
| 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 getNumberOfPages(): int | ||
| { | ||
| return $this->paginator->getNumberOfPages(); | ||
| } | ||
|
|
||
| /** | ||
| * @return int[] | ||
| */ | ||
| public function getAllPageNumbers(): array | ||
| { | ||
| return range($this->getFirstPageNumber(), $this->getLastPageNumber()); | ||
| } | ||
|
|
||
| /** | ||
| * @return int | ||
| */ | ||
| public function getDisplayRangeStart(): int | ||
| { | ||
| return $this->displayRangeStart; | ||
| } | ||
|
|
||
| /** | ||
| * @return int | ||
| */ | ||
| public function getDisplayRangeEnd(): int | ||
| { | ||
| return $this->displayRangeEnd; | ||
| } | ||
|
|
||
| /** | ||
| * @return int[] | ||
| */ | ||
| public function getDisplayPageNumbers(): array | ||
| { | ||
| return range($this->getDisplayRangeStart(), $this->getDisplayRangeEnd()); | ||
| } | ||
|
|
||
| public function hasLessPages(): bool | ||
| { | ||
| return $this->getDisplayRangeStart() > $this->getFirstPageNumber(); | ||
| } | ||
|
|
||
| public function hasMorePages(): bool | ||
| { | ||
| return $this->getDisplayRangeEnd() < $this->getLastPageNumber(); | ||
| } | ||
|
|
||
| /** | ||
| * @return int | ||
| */ | ||
| public function getMaximumNumberOfLinks(): int | ||
| { | ||
| return $this->maximumNumberOfLinks; | ||
| } | ||
|
|
||
| /** | ||
| * @return PaginatorInterface | ||
| */ | ||
| public function getPaginator(): PaginatorInterface | ||
| { | ||
| return $this->paginator; | ||
| } | ||
|
|
||
| /** | ||
| * @return iterable | ||
| */ | ||
| public function getPaginatedItems(): iterable | ||
| { | ||
| return $this->paginator->getPaginatedItems(); | ||
| } | ||
| } |
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