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<?php |
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// $Id$ |
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// ------------------------------------------------------------------------ // |
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// XOOPS - PHP Content Management System // |
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// Copyright (c) 2000-2016 XOOPS.org // |
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// <http://xoops.org/> // |
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// ------------------------------------------------------------------------ // |
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// This program is free software; you can redistribute it and/or modify // |
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// it under the terms of the GNU General Public License as published by // |
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// the Free Software Foundation; either version 2 of the License, or // |
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// (at your option) any later version. // |
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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 // |
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// source code which is considered copyrighted (c) material of the // |
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// original comment or credit authors. // |
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// // |
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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. See the // |
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// GNU General Public License for more details. // |
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// // |
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// You should have received a copy of the GNU General Public License // |
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// along with this program; if not, write to the Free Software // |
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// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA // |
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// ------------------------------------------------------------------------ // |
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// Author: Kazumi Ono (AKA onokazu) // |
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// URL: http://www.myweb.ne.jp/, http://xoops.org/, http://jp.xoops.org/ // |
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// Project: XOOPS Project // |
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// ------------------------------------------------------------------------- // |
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/** |
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* Class to facilitate navigation in a multi page document/list |
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* |
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* @package kernel |
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* @subpackage util |
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* |
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* @author Kazumi Ono <[email protected]> |
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* @copyright (c) XOOPS Project (http://xoops.org) |
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*/ |
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// defined('XOOPS_ROOT_PATH') || exit('XOOPS root path not defined'); |
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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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* @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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* 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)$current_start; |
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if ($extra_arg != '' && (substr($extra_arg, -5) !== '&' || substr($extra_arg, -1) !== '&')) { |
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$extra_arg .= '&'; |
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} |
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$this->url = $_SERVER['PHP_SELF'] . '?' . $extra_arg . trim($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 $offset |
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* |
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* @return string |
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**/ |
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public function renderNav($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 $ret; |
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} |
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$total_pages = ceil($this->total / $this->perpage); |
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if ($total_pages > 1) { |
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$prev = $this->current - $this->perpage; |
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if ($prev >= 0) { |
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$ret .= '<a href="' . $this->url . $prev . '"><u>«</u></a> '; |
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} |
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$counter = 1; |
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$current_page = (int)floor(($this->current + $this->perpage) / $this->perpage); |
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View Code Duplication |
while ($counter <= $total_pages) { |
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if ($counter == $current_page) { |
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$ret .= '<b>(' . $counter . ')</b> '; |
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} elseif (($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 - $offset) { |
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$ret .= '... '; |
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} |
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$ret .= '<a href="' . $this->url . (($counter - 1) * $this->perpage) . '">' . $counter . '</a> '; |
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if ($counter == 1 && $current_page > 1 + $offset) { |
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$ret .= '... '; |
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} |
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} |
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++$counter; |
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} |
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$next = $this->current + $this->perpage; |
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if ($this->total > $next) { |
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$ret .= '<a href="' . $this->url . $next . '"><u>»</u></a> '; |
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} |
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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 $showbutton Show the "Go" button? |
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* |
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* @return string |
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**/ |
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public function renderSelect($showbutton = false) |
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{ |
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if ($this->total < $this->perpage) { |
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return null; |
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} |
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$total_pages = ceil($this->total / $this->perpage); |
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$ret = ''; |
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if ($total_pages > 1) { |
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$ret = '<form name="pagenavform">'; |
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$ret .= '<select name="pagenavselect" onchange="location=this.options[this.options.selectedIndex].value;">'; |
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$counter = 1; |
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$current_page = (int)floor(($this->current + $this->perpage) / $this->perpage); |
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while ($counter <= $total_pages) { |
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View Code Duplication |
if ($counter == $current_page) { |
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$ret .= '<option value="' . $this->url . (($counter - 1) * $this->perpage) . '" selected="selected">' . $counter . '</option>'; |
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} else { |
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$ret .= '<option value="' . $this->url . (($counter - 1) * $this->perpage) . '">' . $counter . '</option>'; |
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} |
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++$counter; |
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} |
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$ret .= '</select>'; |
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if ($showbutton) { |
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$ret .= ' <input type="submit" value="' . _GO . '" />'; |
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} |
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$ret .= '</form>'; |
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} |
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return $ret; |
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} |
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/** |
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* Create an enhanced navigational dropdown list |
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* |
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* @param boolean $showbutton Show the "Go" button? |
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* @param null $titles |
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* |
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* @return string |
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*/ |
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public function renderEnhancedSelect($showbutton = false, $titles = null) |
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{ |
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if ($this->total < $this->perpage) { |
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return null; |
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} |
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$total_pages = ceil($this->total / $this->perpage); |
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$ret = ''; |
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if ($total_pages > 1) { |
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$ret = '<form name="pagenavform">'; |
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$ret .= '<select name="pagenavselect" onchange="location=this.options[this.options.selectedIndex].value;">'; |
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$counter = 1; |
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$current_page = (int)floor(($this->current + $this->perpage) / $this->perpage); |
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while ($counter <= $total_pages) { |
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if (isset($titles[$counter - 1])) { |
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$title = $titles[$counter - 1]; |
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} else { |
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$title = $counter; |
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} |
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View Code Duplication |
if ($counter == $current_page) { |
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$ret .= '<option value="' . $this->url . (($counter - 1) * $this->perpage) . '" selected="selected">' . $title . '</option>'; |
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} else { |
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$ret .= '<option value="' . $this->url . (($counter - 1) * $this->perpage) . '">' . $title . '</option>'; |
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} |
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++$counter; |
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} |
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$ret .= '</select>'; |
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if ($showbutton) { |
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$ret .= ' <input type="submit" value="' . _GO . '" />'; |
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} |
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$ret .= '</form>'; |
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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 $offset |
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* |
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* @return string |
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**/ |
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public function renderImageNav($offset = 4) |
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{ |
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if ($this->total < $this->perpage) { |
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return null; |
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} |
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$total_pages = ceil($this->total / $this->perpage); |
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$ret = ''; |
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if ($total_pages > 1) { |
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$ret = '<table><tr>'; |
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$prev = $this->current - $this->perpage; |
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if ($prev >= 0) { |
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$ret .= '<td class="pagneutral"><a href="' . $this->url . $prev . '"><</a></td><td><img src="' . XOOPS_URL . '/images/blank.gif" width="6" alt="" /></td>'; |
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} |
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$counter = 1; |
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$current_page = (int)floor(($this->current + $this->perpage) / $this->perpage); |
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View Code Duplication |
while ($counter <= $total_pages) { |
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if ($counter == $current_page) { |
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$ret .= '<td class="pagact"><b>' . $counter . '</b></td>'; |
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} elseif (($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 - $offset) { |
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$ret .= '<td class="paginact">...</td>'; |
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} |
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$ret .= '<td class="paginact"><a href="' . $this->url . (($counter - 1) * $this->perpage) . '">' . $counter . '</a></td>'; |
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if ($counter == 1 && $current_page > 1 + $offset) { |
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$ret .= '<td class="paginact">...</td>'; |
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} |
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} |
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++$counter; |
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} |
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$next = $this->current + $this->perpage; |
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if ($this->total > $next) { |
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$ret .= '<td><img src="' . XOOPS_URL . '/images/blank.gif" width="6" alt="" /></td><td class="pagneutral"><a href="' . $this->url . $next . '">></a></td>'; |
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} |
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$ret .= '</tr></table>'; |
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} |
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return $ret; |
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} |
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} |
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Sometimes obsolete code just ends up commented out instead of removed. In this case it is better to remove the code once you have checked you do not need it.
The code might also have been commented out for debugging purposes. In this case it is vital that someone uncomments it again or your project may behave in very unexpected ways in production.
This check looks for comments that seem to be mostly valid code and reports them.