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<?php
//
// +----------------------------------------------------------------------+
// | PHP Version 4 |
// +----------------------------------------------------------------------+
// | Copyright (c) 1997-2004 The PHP Group |
// +----------------------------------------------------------------------+
// | This source file is subject to version 2.0 of the PHP license, |
// | that is bundled with this package in the file LICENSE, and is |
// | available at through the world-wide-web at |
// | http://www.php.net/license/2_02.txt. |
// | If you did not receive a copy of the PHP license and are unable to |
// | obtain it through the world-wide-web, please send a note to |
// | license@php.net so we can mail you a copy immediately. |
// +----------------------------------------------------------------------+
// | Authors: Alexey Borzov <avb@php.net> |
// +----------------------------------------------------------------------+
//
// $Id: SigmaTreeRenderer.php,v 1.2 2004/01/18 17:35:52 avb Exp $
//
require_once 'HTML/Menu/Renderer.php';
/**
* HTML_Template_Sigma-based renderer for 'tree' and 'sitemap' type menus,
* where menu level is represented by tag nesting.
*
* @version $Revision: 1.2 $
* @author Alexey Borzov <avb@php.net>
* @access public
* @package HTML_Menu
*/
class HTML_Menu_SigmaTreeRenderer extends HTML_Menu_Renderer
{
/**
* Template object used for output
* @var object HTML_Template_Sigma
*/
var $_tpl;
/**
* Prefix for template blocks and placeholders
* @var string
*/
var $_prefix;
/**
*
*
*/
var $_level = -1;
/**
* Mapping from HTML_MENU_ENTRY_* constants to template block names
* @var array
*/
var $_typeNames = array(
HTML_MENU_ENTRY_INACTIVE => 'inactive',
HTML_MENU_ENTRY_ACTIVE => 'active',
HTML_MENU_ENTRY_ACTIVEPATH => 'activepath'
);
/**
* Class constructor.
*
* Sets the template object to use and sets prefix for template blocks
* and placeholders. We use prefix to avoid name collisions with existing
* template blocks and it is customisable to allow output of several menus
* into one template.
*
* @access public
* @param object HTML_Template_Sigma template object to use for output
* @param string prefix for template blocks and placeholders
*/
function HTML_Menu_SigmaTreeRenderer(&$tpl, $prefix = 'mu_')
{
$this->_tpl =& $tpl;
$this->_prefix = $prefix;
}
function setMenuType($menuType)
{
if ('tree' == $menuType || 'sitemap' == $menuType) {
$this->_menuType = $menuType;
} else {
require_once 'PEAR.php';
return PEAR::raiseError("HTML_Menu_SigmaTreeRenderer: unable to render '$menuType' type menu");
}
$this->_level = -1;
}
function finishLevel($level)
{
// Close the previous entry
if ($this->_tpl->blockExists($this->_prefix . ($level + 1) . '_entry_close')) {
$this->_tpl->touchBlock($this->_prefix . ($level + 1) . '_entry_close');
} else {
$this->_tpl->touchBlock($this->_prefix . 'entry_close');
}
$this->_tpl->parse($this->_prefix . 'tree_loop');
// Close the level
if ($this->_tpl->blockExists($this->_prefix . ($level + 1) . '_level_close')) {
$this->_tpl->touchBlock($this->_prefix . ($level + 1) . '_level_close');
} else {
$this->_tpl->touchBlock($this->_prefix . 'level_close');
}
$this->_tpl->parse($this->_prefix . 'tree_loop');
}
function renderEntry($node, $level, $type)
{
// Close the entry if previous was on same or higher level
if ($this->_level >= $level) {
if ($this->_tpl->blockExists($this->_prefix . ($level + 1) . '_entry_close')) {
$this->_tpl->touchBlock($this->_prefix . ($level + 1) . '_entry_close');
} else {
$this->_tpl->touchBlock($this->_prefix . 'entry_close');
}
$this->_tpl->parse($this->_prefix . 'tree_loop');
// If the new level is higher then open the level
} else {
if ($this->_tpl->blockExists($this->_prefix . ($level + 1) . '_level_open')) {
$this->_tpl->touchBlock($this->_prefix . ($level + 1) . '_level_open');
} else {
$this->_tpl->touchBlock($this->_prefix . 'level_open');
}
$this->_tpl->parse($this->_prefix . 'tree_loop');
}
// Open the entry
if ($this->_tpl->blockExists($this->_prefix . ($level + 1) . '_entry_open')) {
$this->_tpl->touchBlock($this->_prefix . ($level + 1) . '_entry_open');
} else {
$this->_tpl->touchBlock($this->_prefix . 'entry_open');
}
$this->_tpl->parse($this->_prefix . 'tree_loop');
if ($this->_tpl->blockExists($this->_prefix . ($level + 1) . '_' . $this->_typeNames[$type])) {
$blockName = $this->_prefix . ($level + 1) . '_' . $this->_typeNames[$type];
} else {
$blockName = $this->_prefix . $this->_typeNames[$type];
}
foreach ($node as $k => $v) {
if ('sub' != $k && $this->_tpl->placeholderExists($this->_prefix . $k, $blockName)) {
$this->_tpl->setVariable($this->_prefix . $k, $v);
}
}
$this->_tpl->parse($blockName);
$this->_tpl->parse($this->_prefix . 'tree_loop');
$this->_level = $level;
}
}
?>
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