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<?php
/**
* @version $Id: pageNavigation.php 1176 2005-11-22 22:13:32Z Levis $
* @package Joomla
* @copyright Copyright (C) 2005 Open Source Matters. All rights reserved.
* @license http://www.gnu.org/copyleft/gpl.html GNU/GPL, see LICENSE.php
* Joomla! is free software. This version may have been modified pursuant
* to the GNU General Public License, and as distributed it includes or
* is derivative of works licensed under the GNU General Public License or
* other free or open source software licenses.
* See COPYRIGHT.php for copyright notices and details.
*/
// no direct access
defined( '_VALID_MOS' ) or die( 'Restricted access' );
/**
* Page navigation support class
* @package Joomla
*/
class mosPageNav {
/** @var int The record number to start dislpaying from */
var $limitstart = null;
/** @var int Number of rows to display per page */
var $limit = null;
/** @var int Total number of rows */
var $total = null;
function mosPageNav( $total, $limitstart, $limit ) {
$this->total = intval( $total );
$this->limitstart = max( $limitstart, 0 );
$this->limit = max( $limit, 0 );
}
/**
* Returns the html limit # input box
* @param string The basic link to include in the href
* @return string
*/
function getLimitBox ( $link ) {
$limits = array();
for ($i=5; $i <= 30; $i+=5) {
$limits[] = mosHTML::makeOption( "$i" );
}
$limits[] = mosHTML::makeOption( "50" );
// build the html select list
$link = sefRelToAbs($link.'&limit=\' + this.options[selectedIndex].value + \'&limitstart='.$this->limitstart);
return mosHTML::selectList( $limits, 'limit',
'class="inputbox" size="1" onchange="document.location.href=\''.$link.'\';"',
'value', 'text', $this->limit );
}
/**
* Writes the html limit # input box
* @param string The basic link to include in the href
*/
function writeLimitBox ( $link ) {
echo mosPageNav::getLimitBox( $link );
}
/**
* Writes the html for the pages counter, eg, Results 1-10 of x
*/
function writePagesCounter() {
$txt = '';
$from_result = $this->limitstart+1;
if ($this->limitstart + $this->limit < $this->total) {
$to_result = $this->limitstart + $this->limit;
} else {
$to_result = $this->total;
}
if ($this->total > 0) {
$txt .= _PN_RESULTS." $from_result - $to_result "._PN_OF." $this->total";
}
return $txt;
}
/**
* Writes the html for the leafs counter, eg, Page 1 of x
*/
function writeLeafsCounter() {
$txt = '';
$page = $this->limitstart+1;
if ($this->total > 0) {
$txt .= _PN_PAGE." $page "._PN_OF." $this->total";
}
return $txt;
}
/**
* Writes the html links for pages, eg, previous, next, 1 2 3 ... x
* @param string The basic link to include in the href
*/
function writePagesLinks( $link ) {
$txt = '';
$displayed_pages = 10;
$total_pages = ceil( $this->total / $this->limit );
$this_page = ceil( ($this->limitstart+1) / $this->limit );
$start_loop = (floor(($this_page-1)/$displayed_pages))*$displayed_pages+1;
if ($start_loop + $displayed_pages - 1 < $total_pages) {
$stop_loop = $start_loop + $displayed_pages - 1;
} else {
$stop_loop = $total_pages;
}
$link .= '&limit='. $this->limit;
if (!defined( '_PN_LT' ) || !defined( '_PN_RT' ) ) {
DEFINE('_PN_LT','<');
DEFINE('_PN_RT','>');
}
if (_PN_LT || _PN_RT) $pnSpace = " ";
if ($this_page > 1) {
$page = ($this_page - 2) * $this->limit;
$txt .= '<a href="'. sefRelToAbs( "$link&limitstart=0" ) .'" class="pagenav" title="first page">'. _PN_LT . _PN_LT . $pnSpace . _PN_START .'</a> ';
$txt .= '<a href="'. sefRelToAbs( "$link&limitstart=$page" ) .'" class="pagenav" title="previous page">'. _PN_LT . $pnSpace . _PN_PREVIOUS .'</a> ';
} else {
$txt .= '<span class="pagenav">'. _PN_LT . _PN_LT . $pnSpace . _PN_START .'</span> ';
$txt .= '<span class="pagenav">'. _PN_LT . $pnSpace . _PN_PREVIOUS .'</span> ';
}
for ($i=$start_loop; $i <= $stop_loop; $i++) {
$page = ($i - 1) * $this->limit;
if ($i == $this_page) {
$txt .= '<span class="pagenav">'. $i .'</span> ';
} else {
$txt .= '<a href="'. sefRelToAbs( $link .'&limitstart='. $page ) .'" class="pagenav"><strong>'. $i .'</strong></a> ';
}
}
if ($this_page < $total_pages) {
$page = $this_page * $this->limit;
$end_page = ($total_pages-1) * $this->limit;
$txt .= '<a href="'. sefRelToAbs( $link .'&limitstart='. $page ) .' " class="pagenav" title="next page">'. _PN_NEXT . $pnSpace . _PN_RT .'</a> ';
$txt .= '<a href="'. sefRelToAbs( $link .'&limitstart='. $end_page ) .' " class="pagenav" title="end page">'. _PN_END . $pnSpace . _PN_RT . _PN_RT .'</a>';
} else {
$txt .= '<span class="pagenav">'. _PN_NEXT . $pnSpace . _PN_RT .'</span> ';
$txt .= '<span class="pagenav">'. _PN_END . $pnSpace . _PN_RT . _PN_RT .'</span>';
}
return $txt;
}
/**
* Sets the vars {PAGE_LINKS}, {PAGE_LIST_OPTIONS} and {PAGE_COUNTER} for the page navigation template
* @param object The patTemplate object
* @param string The full link to be used in the nav link, eg index.php?option=com_content
* @param string The name of the template to add the variables
*/
function setTemplateVars( &$tmpl, $link = '', $name = 'admin-list-footer' ) {
$tmpl->addVar( $name, 'PAGE_LINKS', $this->writePagesLinks( $link ) );
$tmpl->addVar( $name, 'PAGE_LIST_OPTIONS', $this->getLimitBox( $link ) );
$tmpl->addVar( $name, 'PAGE_COUNTER', $this->writePagesCounter() );
}
}
?>
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