pagenav.php

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<?php
/*
 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.
*/

class XoopsPageNav
{
    private $total;

    private $perpage;

    private $current;

    private $extra;

    private $url;

    public function __construct($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) . '=';
    }

    public function renderNav($offset = 4, $size = "", $align = "right", $prev_text = "&laquo;", $next_text = "&raquo;")
    {
        $xoops = Xoops::getInstance();
        $ret = '';
        $nav = array();
        if ($this->total <= $this->perpage) {
            return $ret;
        }
        if (($this->total != 0) && ($this->perpage != 0)) {
            $total_pages = ceil($this->total / $this->perpage);
            if ($total_pages > 1) {
                $prev = $this->current - $this->perpage;
                if ($prev >= 0) {
                    $xoops->tpl()->assign('prev_text', $prev_text);
                    $xoops->tpl()->assign('prev_url', $this->url . $prev . $this->extra);
                }
                $last = 0;
                $last_text = '';
                $last_url = '';
                $first = 0;
                $first_text = '';
                $first_url = '';
                $counter = 1;
                $current_page = intval(floor(($this->current + $this->perpage) / $this->perpage));
                while ($counter <= $total_pages) {
                    if ($counter == $current_page) {
                        $nav['text'] = $counter;
                        $nav['url'] = '';
                        $nav['active'] = 0;
                    } elseif (($counter > $current_page - $offset && $counter < $current_page + $offset) || $counter == 1 || $counter == $total_pages) {
                        if ($counter == $total_pages && $current_page < $total_pages - $offset) {
                            $nav['text'] = '...';
                            $nav['url'] = '';
                            $nav['active'] = 0;
                            $last = 1;
                            $last_text = $counter;
                            $last_url = $this->url . (($counter - 1) * $this->perpage) . $this->extra;
                        } else {
                            $nav['text'] = $counter;
                            $nav['url'] = $this->url . (($counter - 1) * $this->perpage) . $this->extra;
                            $nav['active'] = 1;
                        }
                        if ($counter == 1 && $current_page > 1 + $offset) {
                            $nav['text'] = '...';
                            $nav['url'] = '';
                            $nav['active'] = 0;
                            $first = 1;
                            $first_text = $counter;
                            $first_url = $this->url . (($counter - 1) * $this->perpage) . $this->extra;
                        }
                    }
                    $xoops->tpl()->appendByRef('xo_nav', $nav);
                    unset($nav);
                    ++$counter;
                }
                $xoops->tpl()->assign('last', $last);
                $xoops->tpl()->assign('last_text', $last_text);
                $xoops->tpl()->assign('last_url', $last_url);
                $xoops->tpl()->assign('first', $first);
                $xoops->tpl()->assign('first_text', $first_text);
                $xoops->tpl()->assign('first_url', $first_url);

                $next = $this->current + $this->perpage;
                if ($this->total > $next) {
                    $xoops->tpl()->assign('next_text', $next_text);
                    $xoops->tpl()->assign('next_url', $this->url . $next . $this->extra);
                }
            }
        }
        if ($size != '') {
            $size = ' pagination-' . $size;
        }
        $xoops->tpl()->assign('size', $size);
        $xoops->tpl()->assign('align', ' pagination-' . $align);
        $xoops->tpl()->assign('pagination_nav', true);
        $ret = $xoops->tpl()->fetch('module:system/system_pagenav.tpl');
        $xoops->tpl()->clearAssign('xo_nav');
        return $ret;
    }

    public function renderSelect($align = "right", $showbutton = false)
    {
        $xoops = Xoops::getInstance();
        $ret = '';
        if ($this->total < $this->perpage) {
            return $ret;
        }
        $total_pages = ceil($this->total / $this->perpage);
        if ($total_pages > 1) {
            $counter = 1;
            $current_page = intval(floor(($this->current + $this->perpage) / $this->perpage));
            while ($counter <= $total_pages) {
                $select['text'] = $counter;
                $select['value'] = $this->url . (($counter - 1) * $this->perpage) . $this->extra;
                if ($counter == $current_page) {
                    $select['selected'] = 1;
                } else {
                    $select['selected'] = 0;
                }
                $xoops->tpl()->appendByRef('xo_select', $select);
                unset($select);
                ++$counter;
            }
        }
        $xoops->tpl()->assign('onchange', "location=this.options[this.options.selectedIndex].value;");
        $xoops->tpl()->assign('pagination_select', true);
        $xoops->tpl()->assign('showbutton', $showbutton);
        $xoops->tpl()->assign('align', ' pagination-' . $align);
        $ret = $xoops->tpl()->fetch('module:system/system_pagenav.tpl');
        $xoops->tpl()->clearAssign('xo_select');
        return $ret;
    }

    public function renderImageNav($offset = 4)
    {
        $xoops = Xoops::getInstance();
        $xoops->deprecated('renderImageNav() is deprecated since 2.6.0. Please use renderNav()');
        return $this->renderNav($offset);
    }
}