<?php /** * XOOPS page navigation * * You may not change or alter any portion of this comment or credits * of supporting developers from this source code or any supporting source code * which is considered copyrighted (c) material of the original comment or credit authors. * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. * * @copyright The XOOPS Project http://sourceforge.net/projects/xoops/ * @license GNU GPL 2 (http://www.gnu.org/licenses/old-licenses/gpl-2.0.html) * @package kernel * @since 2.0.0 * @author Kazumi Ono (http://www.myweb.ne.jp/, http://jp.xoops.org/) * @version $Id$ */ defined('XOOPS_ROOT_PATH') or die('Restricted access'); class XoopsPageNav { /** * *#@+ * * @access private */ var $total; var $perpage; var $current; var $url; /** * *#@- */ /** * Constructor * * @param int $total_items Total number of items * @param int $items_perpage Number of items per page * @param int $current_start First item on the current page * @param string $start_name Name for "start" or "offset" * @param string $extra_arg Additional arguments to pass in the URL */ function XoopsPageNav($total_items, $items_perpage, $current_start, $start_name = "start", $extra_arg = "") { $this->total = intval($total_items); $this->perpage = intval($items_perpage); $this->current = intval($current_start); $this->extra = $extra_arg; if ($extra_arg != '' && (substr($extra_arg, - 5) != '&amp;' || substr($extra_arg, - 1) != '&')) { $this->extra = '&amp;' . $extra_arg; } $this->url = $_SERVER['PHP_SELF'] . '?' . trim($start_name) . '='; } /** * Create text navigation * * @param integer $offset * @return string */ function renderNav($offset = 4) { $ret = ''; if ($this->total <= $this->perpage) { return $ret; } $total_pages = ceil($this->total / $this->perpage); if ($total_pages > 1) { $ret .= '<div id="xo-pagenav">'; $prev = $this->current - $this->perpage; if ($prev >= 0) { $ret .= '<a class="xo-pagarrow" href="' . $this->url . $prev . $this->extra . '"><u>&laquo;</u></a> '; } $counter = 1; $current_page = intval(floor(($this->current + $this->perpage) / $this->perpage)); while ($counter <= $total_pages) { if ($counter == $current_page) { $ret .= '<strong class="xo-pagact" >(' . $counter . ')</strong> '; } elseif (($counter > $current_page - $offset && $counter < $current_page + $offset) || $counter == 1 || $counter == $total_pages) { if ($counter == $total_pages && $current_page < $total_pages - $offset) { $ret .= '... '; } $ret .= '<a class="xo-counterpage" href="' . $this->url . (($counter - 1) * $this->perpage) . $this->extra . '">' . $counter . '</a> '; if ($counter == 1 && $current_page > 1 + $offset) { $ret .= '... '; } } $counter ++; } $next = $this->current + $this->perpage; if ($this->total > $next) { $ret .= '<a class="xo-pagarrow" href="' . $this->url . $next . $this->extra . '"><u>&raquo;</u></a> '; } $ret .= '</div> '; } return $ret; } /** * Create a navigational dropdown list * * @param boolean $showbutton Show the "Go" button? * @return string */ function renderSelect($showbutton = false) { if ($this->total < $this->perpage) { return; } $total_pages = ceil($this->total / $this->perpage); $ret = ''; if ($total_pages > 1) { $ret = '<form name="pagenavform">'; $ret .= '<select name="pagenavselect" onchange="location=this.options[this.options.selectedIndex].value;">'; $counter = 1; $current_page = intval(floor(($this->current + $this->perpage) / $this->perpage)); while ($counter <= $total_pages) { if ($counter == $current_page) { $ret .= '<option value="' . $this->url . (($counter - 1) * $this->perpage) . $this->extra . '" selected="selected">' . $counter . '</option>'; } else { $ret .= '<option value="' . $this->url . (($counter - 1) * $this->perpage) . $this->extra . '">' . $counter . '</option>'; } $counter ++; } $ret .= '</select>'; if ($showbutton) { $ret .= '&nbsp;<input type="submit" value="' . _GO . '" />'; } $ret .= '</form>'; } return $ret; } /** * Create navigation with images * * @param integer $offset * @return string */ function renderImageNav($offset = 4) { if ($this->total < $this->perpage) { return; } $total_pages = ceil($this->total / $this->perpage); $ret = ''; if ($total_pages > 1) { $ret = '<table><tr>'; $prev = $this->current - $this->perpage; if ($prev >= 0) { $ret .= '<td class="pagneutral"><a href="' . $this->url . $prev . $this->extra . '"><</a></td><td><img src="' . XOOPS_URL . '/images/blank.gif" width="6" alt="" /></td>'; } else { $ret .= '<td class="pagno"></a></td><td><img src="' . XOOPS_URL . '/images/blank.gif" width="6" alt="" /></td>'; } $counter = 1; $current_page = intval(floor(($this->current + $this->perpage) / $this->perpage)); while ($counter <= $total_pages) { if ($counter == $current_page) { $ret .= '<td class="pagact"><strong>' . $counter . '</strong></td>'; } elseif (($counter > $current_page - $offset && $counter < $current_page + $offset) || $counter == 1 || $counter == $total_pages) { if ($counter == $total_pages && $current_page < $total_pages - $offset) { $ret .= '<td class="paginact">...</td>'; } $ret .= '<td class="paginact"><a href="' . $this->url . (($counter - 1) * $this->perpage) . $this->extra . '">' . $counter . '</a></td>'; if ($counter == 1 && $current_page > 1 + $offset) { $ret .= '<td class="paginact">...</td>'; } } $counter ++; } $next = $this->current + $this->perpage; if ($this->total > $next) { $ret .= '<td><img src="' . XOOPS_URL . '/images/blank.gif" width="6" alt="" /></td><td class="pagneutral"><a href="' . $this->url . $next . $this->extra . '">></a></td>'; } else { $ret .= '<td><img src="' . XOOPS_URL . '/images/blank.gif" width="6" alt="" /></td><td class="pagno"></td>'; } $ret .= '</tr></table>'; } return $ret; } } ?>