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<?php |
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/** |
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* XOOPS page navigation |
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* |
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* You may not change or alter any portion of this comment or credits |
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* of supporting developers from this source code or any supporting source code |
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* which is considered copyrighted (c) material of the original comment or credit authors. |
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* This program is distributed in the hope that it will be useful, |
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* but WITHOUT ANY WARRANTY; without even the implied warranty of |
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. |
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* |
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* @copyright (c) 2000-2021 XOOPS Project (www.xoops.org) |
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* @license GNU GPL 2 (https://www.gnu.org/licenses/gpl-2.0.html) |
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* @package kernel |
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* @since 2.0.0 |
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* @author Kazumi Ono (http://www.myweb.ne.jp/, http://jp.xoops.org/) |
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*/ |
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use Xmf\Request; |
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defined('XOOPS_ROOT_PATH') || exit('Restricted access'); |
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/** |
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* Class XoopsPageNav |
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*/ |
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class XoopsPageNav |
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{ |
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/** |
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* *#@+ |
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* |
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* @access private |
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*/ |
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public $total; |
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public $perpage; |
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public $current; |
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public $url; |
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/** |
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* *#@- |
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*/ |
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/** |
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* Constructor |
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* |
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* @param int $total_items Total number of items |
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* @param int $items_perpage Number of items per page |
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* @param int $current_start First item on the current page |
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* @param string $start_name Name for "start" or "offset" |
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* @param string $extra_arg Additional arguments to pass in the URL |
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*/ |
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public function __construct($total_items, $items_perpage, $current_start, $start_name = 'start', $extra_arg = '') |
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{ |
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$this->total = (int)$total_items; |
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$this->perpage = (int)$items_perpage; |
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$this->current = (int)$current_start; |
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$this->extra = $extra_arg; |
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if ($extra_arg != '' && (substr($extra_arg, -5) !== '&' || substr($extra_arg, -1) !== '&')) { |
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$this->extra = '&' . $extra_arg; |
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} |
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$this->url = htmlspecialchars(Request::getString('PHP_SELF', '', 'SERVER'), ENT_QUOTES) . '?' . trim($start_name) . '='; |
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} |
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/** |
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* Create text navigation |
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* |
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* @param integer $offset |
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* @return string |
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*/ |
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public function renderNav($offset = 4) |
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{ |
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$ret = ''; |
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if ($this->total <= $this->perpage) { |
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return $ret; |
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} |
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if (($this->total != 0) && ($this->perpage != 0)) { |
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$navigation = array(); |
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$total_pages = ceil($this->total / $this->perpage); |
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if ($total_pages > 1) { |
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$i = 0; |
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$prev = $this->current - $this->perpage; |
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if ($prev >= 0) { |
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$navigation[$i]['url'] = $this->url . $prev . $this->extra; |
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$navigation[$i]['value'] = ''; |
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$navigation[$i]['option'] = 'first'; |
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++$i; |
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} |
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$counter = 1; |
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$current_page = (int)floor(($this->current + $this->perpage) / $this->perpage); |
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while ($counter <= $total_pages) { |
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if ($counter == $current_page) { |
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$navigation[$i]['url'] = $this->url . $prev . $this->extra; |
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$navigation[$i]['value'] = $counter; |
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$navigation[$i]['option'] = 'selected'; |
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} elseif (($counter > $current_page - $offset && $counter < $current_page + $offset) || $counter == 1 || $counter == $total_pages) { |
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if ($counter == $total_pages && $current_page < $total_pages - $offset) { |
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$navigation[$i]['url'] = ''; |
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$navigation[$i]['value'] = ''; |
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$navigation[$i]['option'] = 'break'; |
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++$i; |
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} |
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$navigation[$i]['url'] = $this->url . (($counter - 1) * $this->perpage) . $this->extra; |
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$navigation[$i]['value'] = $counter; |
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$navigation[$i]['option'] = 'show'; |
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++$i; |
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if ($counter == 1 && $current_page > 1 + $offset) { |
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$navigation[$i]['url'] = ''; |
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$navigation[$i]['value'] = ''; |
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$navigation[$i]['option'] = 'break'; |
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} |
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} |
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++$counter; |
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++$i; |
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} |
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$next = $this->current + $this->perpage; |
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if ($this->total > $next) { |
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$navigation[$i]['url'] = $this->url . $next . $this->extra; |
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$navigation[$i]['value'] = ''; |
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$navigation[$i]['option'] = 'last'; |
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} |
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} |
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return $this->displayPageNav('Nav', $navigation); |
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} |
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return $ret; |
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} |
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/** |
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* Create a navigational dropdown list |
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* |
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* @param boolean $showbutton Show the "Go" button? |
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* @return string |
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*/ |
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public function renderSelect($showbutton = false) |
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{ |
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$ret = ''; |
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if ($this->total < $this->perpage) { |
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return $ret; |
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} |
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$total_pages = ceil($this->total / $this->perpage); |
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if ($total_pages > 1) { |
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$counter = 1; |
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$current_page = (int)floor(($this->current + $this->perpage) / $this->perpage); |
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while ($counter <= $total_pages) { |
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if ($counter == $current_page) { |
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$ret .= '<option value="' . $this->url . (($counter - 1) * $this->perpage) . $this->extra . '" selected>' . $counter . '</option>'; |
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} else { |
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$ret .= '<option value="' . $this->url . (($counter - 1) * $this->perpage) . $this->extra . '">' . $counter . '</option>'; |
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} |
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++$counter; |
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} |
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if ($showbutton) { |
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$navigation['button'] = true; |
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} else { |
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$navigation['button'] = false; |
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} |
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$navigation['select'] = $ret; |
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return $this->displayPageNav('Select', $navigation); |
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} |
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return $ret; |
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} |
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/** |
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* Create navigation with images |
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* |
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* @param integer $offset |
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* @return string |
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*/ |
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public function renderImageNav($offset = 4) |
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{ |
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$ret = ''; |
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if ($this->total < $this->perpage) { |
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return $ret; |
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} |
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$total_pages = ceil($this->total / $this->perpage); |
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if ($total_pages > 1) { |
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$i = 0; |
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$prev = $this->current - $this->perpage; |
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if ($prev >= 0) { |
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$navigation[$i]['url'] = $this->url . $prev . $this->extra; |
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$navigation[$i]['value'] = ''; |
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$navigation[$i]['option'] = 'first'; |
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++$i; |
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} else { |
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$navigation[$i]['url'] = ''; |
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$navigation[$i]['value'] = ''; |
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$navigation[$i]['option'] = 'firstempty'; |
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++$i; |
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} |
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$counter = 1; |
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$current_page = (int)floor(($this->current + $this->perpage) / $this->perpage); |
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while ($counter <= $total_pages) { |
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if ($counter == $current_page) { |
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$navigation[$i]['url'] = ''; |
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$navigation[$i]['value'] = $counter; |
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$navigation[$i]['option'] = 'selected'; |
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} elseif (($counter > $current_page - $offset && $counter < $current_page + $offset) || $counter == 1 || $counter == $total_pages) { |
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if ($counter == $total_pages && $current_page < $total_pages - $offset) { |
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$navigation[$i]['url'] = ''; |
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$navigation[$i]['value'] = ''; |
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$navigation[$i]['option'] = 'break'; |
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++$i; |
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} |
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$navigation[$i]['url'] = $this->url . (($counter - 1) * $this->perpage) . $this->extra; |
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$navigation[$i]['value'] = $counter; |
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$navigation[$i]['option'] = 'show'; |
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++$i; |
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if ($counter == 1 && $current_page > 1 + $offset) { |
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$navigation[$i]['url'] = ''; |
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$navigation[$i]['value'] = ''; |
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$navigation[$i]['option'] = 'break'; |
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} |
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} |
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++$counter; |
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++$i; |
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} |
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$next = $this->current + $this->perpage; |
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if ($this->total > $next) { |
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$navigation[$i]['url'] = $this->url . $next . $this->extra; |
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$navigation[$i]['value'] = ''; |
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$navigation[$i]['option'] = 'last'; |
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++$i; |
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} else { |
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$navigation[$i]['url'] = ''; |
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$navigation[$i]['value'] = ''; |
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$navigation[$i]['option'] = 'lastempty'; |
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} |
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return $this->displayPageNav('Image', $navigation); |
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} |
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return $ret; |
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} |
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/** |
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* Display navigation in template |
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* |
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* @param string $type |
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* @param array $navigation |
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* @return string |
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*/ |
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private function displayPageNav($type = 'nav', $navigation = array()){ |
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if (!isset($GLOBALS['xoTheme']) || !is_object($GLOBALS['xoTheme'])) { |
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include_once $GLOBALS['xoops']->path('/class/theme.php'); |
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$GLOBALS['xoTheme'] = new \xos_opal_Theme(); |
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} |
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require_once $GLOBALS['xoops']->path('/class/template.php'); |
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$pageNavTpl = new \XoopsTpl(); |
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$pageNavTpl->assign('pageNavType', $type); |
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$pageNavTpl->assign('pageNavigation', $navigation); |
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return $pageNavTpl->fetch("db:system_pagenav.tpl"); |
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} |
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} |
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