'.$this->previous().$this->numbers($adjacent).$this->next(); } return ''; } /** * Generate the HTML numeric page links. * * @param int $adjacent * @return string */ public function numbers($adjacent = 3) { // If there are not enough pages to make it worth sliding, we will show all of the pages. // // We add "7" for the constant elements in a slider: the first and last two links, the // current page, and the two "..." strings. return ($this->last_page() < 7 + ($adjacent * 2)) ? $this->range(1, $this->last_page()) : $this->slider($adjacent); } /** * Build sliding list of HTML numeric page links. * * @param int $adjacent * @return string */ protected function slider($adjacent) { $pagination = ''; if ($this->page <= $adjacent * 2) { // Buffer the current page with four pages to the right. Any more pages will interfere with hiding. $pagination .= $this->range(1, 4 + ($adjacent * 2)).$this->ending(); } elseif ($this->page >= $this->last_page() - ($adjacent * 2)) { // Buffer with at least two pages to the left of the current page. $pagination .= $this->beginning().$this->range($this->last_page() - 2 - ($adjacent * 2), $this->last_page()); } else { $pagination .= $this->beginning().$this->range($this->page - $adjacent, $this->page + $adjacent).$this->ending(); } return $pagination; } /** * Generate the "previous" HTML link. * * @param string $value * @return string */ public function previous($value = '« Previous') { if ($this->page > 1) { return HTML::link(Request::uri().'?page='.($this->page - 1), $value, array('class' => 'prev_page')).' '; } return HTML::span($value, array('class' => 'disabled prev_page')).' '; } /** * Generate the "next" HTML link. * * @param string $value * @return string */ public function next($value = 'Next »') { if ($this->page < $this->last_page()) { return HTML::link(Request::uri().'?page='.($this->page + 1), $value, array('class' => 'next_page')); } return HTML::span($value, array('class' => 'disabled next_page')); } /** * Build the first two page links for a sliding page range. * * @return string */ protected function beginning() { return $this->range(1, 2).' ... '; } /** * Build the last two page links for a sliding page range. * * @return string */ protected function ending() { return ' ... '.$this->range($this->last_page() - 1, $this->last_page()); } /** * Calculate the last page based on the last page and the items per page. * * @return int */ protected function last_page() { return ceil($this->total / $this->per_page); } /** * Build a range of page links. * * For the current page, an HTML span element will be generated instead of a link. * * @param int $start * @param int $end * @return string */ protected function range($start, $end) { $pages = ''; for ($i = $start; $i <= $end; $i++) { $pages .= ($this->page == $i) ? HTML::span($i, array('class' => 'current')).' ' : HTML::link(Request::uri().'?page='.$i, $i).' '; } return $pages; } }