diff options
Diffstat (limited to 'views/default/navigation/pagination.php')
| -rw-r--r-- | views/default/navigation/pagination.php | 132 |
1 files changed, 132 insertions, 0 deletions
diff --git a/views/default/navigation/pagination.php b/views/default/navigation/pagination.php new file mode 100644 index 000000000..04044c51c --- /dev/null +++ b/views/default/navigation/pagination.php @@ -0,0 +1,132 @@ +<?php +/** + * Elgg pagination + * + * @package Elgg + * @subpackage Core + * + * @uses int $vars['offset'] The offset in the list + * @uses int $vars['limit'] Number of items per page + * @uses int $vars['count'] Number of items in list + * @uses string $vars['base_url'] Base URL to use in links + * @uses string $vars['offset_key'] The string to use for offet in the URL + */ + +if (elgg_in_context('widget')) { + // widgets do not show pagination + return true; +} + +$offset = abs((int) elgg_extract('offset', $vars, 0)); +// because you can say $vars['limit'] = 0 +if (!$limit = (int) elgg_extract('limit', $vars, 10)) { + $limit = 10; +} + +$count = (int) elgg_extract('count', $vars, 0); +$offset_key = elgg_extract('offset_key', $vars, 'offset'); +// some views pass an empty string for base_url +if (isset($vars['base_url']) && $vars['base_url']) { + $base_url = $vars['base_url']; +} else if (isset($vars['baseurl']) && $vars['baseurl']) { + elgg_deprecated_notice("Use 'base_url' instead of 'baseurl' for the navigation/pagination view", 1.8); + $base_url = $vars['baseurl']; +} else { + $base_url = current_page_url(); +} + +$num_pages = elgg_extract('num_pages', $vars, 10); +$delta = ceil($num_pages / 2); + +if ($count <= $limit && $offset == 0) { + // no need for pagination + return true; +} + +$total_pages = ceil($count / $limit); +$current_page = ceil($offset / $limit) + 1; + +$pages = new stdClass(); +$pages->prev = array( + 'text' => '« ' . elgg_echo('previous'), + 'href' => '', + 'is_trusted' => true, +); +$pages->next = array( + 'text' => elgg_echo('next') . ' »', + 'href' => '', + 'is_trusted' => true, +); +$pages->items = array(); + +// Add pages before the current page +if ($current_page > 1) { + $prev_offset = $offset - $limit; + if ($prev_offset < 0) { + $prev_offset = 0; + } + + $pages->prev['href'] = elgg_http_add_url_query_elements($base_url, array($offset_key => $prev_offset)); + + $first_page = $current_page - $delta; + if ($first_page < 1) { + $first_page = 1; + } + + $pages->items = range($first_page, $current_page - 1); +} + + +$pages->items[] = $current_page; + + +// add pages after the current one +if ($current_page < $total_pages) { + $next_offset = $offset + $limit; + if ($next_offset >= $count) { + $next_offset--; + } + + $pages->next['href'] = elgg_http_add_url_query_elements($base_url, array($offset_key => $next_offset)); + + $last_page = $current_page + $delta; + if ($last_page > $total_pages) { + $last_page = $total_pages; + } + + $pages->items = array_merge($pages->items, range($current_page + 1, $last_page)); +} + + +echo '<ul class="elgg-pagination">'; + +if ($pages->prev['href']) { + $link = elgg_view('output/url', $pages->prev); + echo "<li>$link</li>"; +} else { + echo "<li class=\"elgg-state-disabled\"><span>{$pages->prev['text']}</span></li>"; +} + +foreach ($pages->items as $page) { + if ($page == $current_page) { + echo "<li class=\"elgg-state-selected\"><span>$page</span></li>"; + } else { + $page_offset = (($page - 1) * $limit); + $url = elgg_http_add_url_query_elements($base_url, array($offset_key => $page_offset)); + $link = elgg_view('output/url', array( + 'href' => $url, + 'text' => $page, + 'is_trusted' => true, + )); + echo "<li>$link</li>"; + } +} + +if ($pages->next['href']) { + $link = elgg_view('output/url', $pages->next); + echo "<li>$link</li>"; +} else { + echo "<li class=\"elgg-state-disabled\"><span>{$pages->next['text']}</span></li>"; +} + +echo '</ul>'; |