Initial commit - Typo3 11.5.41

typo3conf/ext/numbered_pagination/Classes/NumberedPagination.php

@@ -0,0 +1,152 @@
+<?php
+
+declare(strict_types=1);
+
+namespace GeorgRinger\NumberedPagination;
+
+use TYPO3\CMS\Core\Pagination\PaginationInterface;
+use TYPO3\CMS\Core\Pagination\PaginatorInterface;
+
+final class NumberedPagination implements PaginationInterface
+{
+    /**
+     * @var PaginatorInterface
+     */
+    protected $paginator;
+
+    protected $maximumNumberOfLinks = 10;
+    protected $displayRangeStart = 0;
+    protected $displayRangeEnd = 0;
+    protected $hasLessPages = false;
+    protected $hasMorePages = false;
+
+    public function __construct(PaginatorInterface $paginator, int $maximumNumberOfLinks = 0)
+    {
+        $this->paginator = $paginator;
+        if ($maximumNumberOfLinks > 0) {
+            $this->maximumNumberOfLinks = $maximumNumberOfLinks;
+        }
+        $this->calculateDisplayRange();
+    }
+
+    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 $this->paginator->getKeyOfLastPaginatedItem() + 1;
+    }
+
+    /**
+     * @return int[]
+     */
+    public function getAllPageNumbers(): array
+    {
+        return range($this->displayRangeStart, $this->displayRangeEnd);
+    }
+
+    public function getHasLessPages(): bool
+    {
+        return $this->hasLessPages;
+    }
+
+    public function getHasMorePages(): bool
+    {
+        return $this->hasMorePages;
+    }
+
+    /**
+     * @return int
+     */
+    public function getMaximumNumberOfLinks(): int
+    {
+        return $this->maximumNumberOfLinks;
+    }
+
+    /**
+     * @return int
+     */
+    public function getDisplayRangeStart(): int
+    {
+        return $this->displayRangeStart;
+    }
+
+    /**
+     * @return int
+     */
+    public function getDisplayRangeEnd(): int
+    {
+        return $this->displayRangeEnd;
+    }
+
+    protected function calculateDisplayRange(): void
+    {
+        $numberOfPages = $this->paginator->getNumberOfPages();
+        $currentPage = $this->paginator->getCurrentPageNumber();
+
+        $maximumNumberOfLinks = $this->maximumNumberOfLinks;
+        if ($maximumNumberOfLinks > $numberOfPages) {
+            $maximumNumberOfLinks = $numberOfPages;
+        }
+        $delta = (int)($maximumNumberOfLinks / 2);
+        $this->displayRangeStart = $currentPage - $delta;
+        $this->displayRangeEnd = $currentPage + $delta - ($maximumNumberOfLinks % 2 === 0 ? 1 : 0);
+        if ($this->displayRangeStart < 1) {
+            $this->displayRangeEnd -= $this->displayRangeStart - 1;
+        }
+        if ($this->displayRangeEnd > $numberOfPages) {
+            $this->displayRangeStart -= $this->displayRangeEnd - $numberOfPages;
+        }
+        $this->displayRangeStart = (integer)max($this->displayRangeStart, 1);
+        $this->displayRangeEnd = (integer)min($this->displayRangeEnd, $numberOfPages);
+        $this->hasLessPages = $this->displayRangeStart > 1;
+        $this->hasMorePages = $this->displayRangeEnd < $this->paginator->getNumberOfPages();
+    }
+
+    public function getPaginator(): PaginatorInterface
+    {
+        return $this->paginator;
+    }
+}