WebOrbiton
v1.0.0.0

StocketBase

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121 lines · 4.5 KB
  1. <?php
  3. declare(strict_types=1);
  5. final class Pagination
  6. {
  7. public static function currentPage(): int
  8. {
  9. $page = (int) ($_GET['page'] ?? 1);
  10. return $page > 0 ? $page : 1;
  11. }
  13. public static function offset(int $page, int $perPage): int
  14. {
  15. return ($page - 1) * $perPage;
  16. }
  18. public static function totalPages(int $totalItems, int $perPage): int
  19. {
  20. if ($perPage <= 0) {
  21. return 1;
  22. }
  23. return max(1, (int) ceil($totalItems / $perPage));
  24. }
  27. public static function render(string $style, string $baseUrl, int $currentPage, int $totalPages, array $extraParams = [], string $containerId = ''): string
  28. {
  29. if ($totalPages <= 1) {
  30. return '';
  31. }
  33. return match ($style) {
  34. 'load_more' => self::renderLoadMore($currentPage, $totalPages, $containerId),
  35. 'infinite_scroll' => self::renderInfiniteScrollMarker($currentPage, $totalPages, $containerId),
  36. default => self::renderNumbered($baseUrl, $currentPage, $totalPages, $extraParams),
  37. };
  38. }
  40. private static function buildUrl(string $baseUrl, int $page, array $extraParams): string
  41. {
  42. $params = $extraParams;
  43. if ($page > 1) {
  44. $params['page'] = $page;
  45. }
  47. if (empty($params)) {
  48. return $baseUrl;
  49. }
  51. return $baseUrl . '?' . http_build_query($params);
  52. }
  54. private static function renderNumbered(string $baseUrl, int $currentPage, int $totalPages, array $extraParams): string
  55. {
  56. $html = '<nav class="pagination-numbered" aria-label="Pagination">';
  58. if ($currentPage > 1) {
  59. $html .= '<a href="' . htmlspecialchars(self::buildUrl($baseUrl, $currentPage - 1, $extraParams)) . '" class="pagination-link pagination-prev">' . htmlspecialchars(Language::get('pagination_previous', 'Previous')) . '</a>';
  60. }
  62. foreach (self::pageWindow($currentPage, $totalPages) as $item) {
  63. if ($item === null) {
  64. $html .= '<span class="pagination-ellipsis">…</span>';
  65. continue;
  66. }
  67. $isCurrent = $item === $currentPage;
  68. $html .= '<a href="' . htmlspecialchars(self::buildUrl($baseUrl, $item, $extraParams)) . '" class="pagination-link' . ($isCurrent ? ' pagination-current' : '') . '"' . ($isCurrent ? ' aria-current="page"' : '') . '>' . $item . '</a>';
  69. }
  71. if ($currentPage < $totalPages) {
  72. $html .= '<a href="' . htmlspecialchars(self::buildUrl($baseUrl, $currentPage + 1, $extraParams)) . '" class="pagination-link pagination-next">' . htmlspecialchars(Language::get('pagination_next', 'Next')) . '</a>';
  73. }
  75. $html .= '</nav>';
  77. return $html;
  78. }
  81. private static function pageWindow(int $currentPage, int $totalPages): array
  82. {
  83. $window = 2;
  84. $pages = [];
  86. for ($i = 1; $i <= $totalPages; $i++) {
  87. if ($i === 1 || $i === $totalPages || ($i >= $currentPage - $window && $i <= $currentPage + $window)) {
  88. $pages[] = $i;
  89. } elseif (!empty($pages) && end($pages) !== null) {
  90. $pages[] = null;
  91. }
  92. }
  94. return $pages;
  95. }
  97. private static function renderLoadMore(int $currentPage, int $totalPages, string $containerId): string
  98. {
  99. if ($currentPage >= $totalPages) {
  100. return '';
  101. }
  103. $safeContainerId = htmlspecialchars($containerId);
  105. return '<div class="pagination-load-more" data-container="' . $safeContainerId . '" data-next-page="' . ($currentPage + 1) . '" data-total-pages="' . $totalPages . '">'
  106. . '<button type="button" class="unlock-btn pagination-load-more-btn" style="border:none;cursor:pointer;">' . htmlspecialchars(Language::get('pagination_load_more', 'Load more')) . '</button>'
  107. . '</div>';
  108. }
  110. private static function renderInfiniteScrollMarker(int $currentPage, int $totalPages, string $containerId): string
  111. {
  112. if ($currentPage >= $totalPages) {
  113. return '<div class="pagination-end">' . htmlspecialchars(Language::get('pagination_end', 'No more products')) . '</div>';
  114. }
  116. $safeContainerId = htmlspecialchars($containerId);
  118. return '<div class="pagination-infinite-marker" data-container="' . $safeContainerId . '" data-next-page="' . ($currentPage + 1) . '" data-total-pages="' . $totalPages . '"></div>';
  119. }
  120. }
  121. ​