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<?php
//
// +----------------------------------------------------------------------+
// | PEAR :: DB_NestedSet_Output |
// +----------------------------------------------------------------------+
// | Copyright (c) 1997-2003 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: Daniel Khan <dk@webcluster.at> |
// | Jason Rust <jason@rustyparts.com> |
// +----------------------------------------------------------------------+
// $Id: Output.php,v 1.8 2003/05/25 00:46:46 datenpunk Exp $
//
require_once 'PEAR.php';
// {{{ constants
define('NESEO_ERROR_NO_METHOD', 'E1000');
define('NESEO_DRIVER_NOT_FOUND', 'E1100');
define('NESEO_ERROR_NO_OPTIONS', 'E2100');
// }}}
// {{{ DB_NestedSet_Output:: class
/**
* DB_NestedSet_Output is a unified API for other output drivers
* Status is beta
*
* At the moment PEAR::HTML_TreeMenu written by Jason Rust is supported
* A driver for treemenu.org will follow soon.
*
* Usage example:
*
* require_once('DB_NestedSet/NestedSet/Output.php');
* $icon = 'folder.gif';
* $expandedIcon = 'folder-expanded.gif';
* // get data (important to fetch it as an array, using the true flag)
* $data = $NeSe->getAllNodes(true);
* // change the events for one of the elements
* $data[35]['events'] = array('onexpand' => 'alert("we expanded!");');
* // add links to each item
* foreach ($data as $a_data) {
* $a_data['link'] = 'http://foo.com/foo.php?' . $a_data['id'];
* }
* $params = array(
* 'structure' => $data,
* 'options' => array(
* 'icon' => $icon,
* 'expandedIcon' => $expandedIcon,
* ),
* 'textField' => 'name',
* 'linkField' => 'link',
* );
* $menu =& DB_NestedSet_Output::factory('TreeMenu', $params);
* $menu->printListbox();
*
* @author Daniel Khan <dk@webcluster.at>
* @package DB_NestedSet
* @version $Revision: 1.8 $
* @access public
*
*/
// }}}
class DB_NestedSet_Output {
// {{{ properties
/**
* @var object The tree menu structure
* @access private
*/
var $_structTreeMenu = false;
/**
* @var array Array of options to be passed to the ouput methods
* @access public
*/
var $options = array();
// }}}
// {{{ factory()
/**
* Returns a output driver object
*
* @param array $params A DB_NestedSet nodeset
* @param string $driver (optional) The driver, such as TreeMenu (default)
*
* @access public
* @return object The DB_NestedSet_Ouput object
*/
function &factory ($params, $driver = 'TreeMenu') {
$path = dirname(__FILE__).'/'.$driver.'.php';
if(is_dir($path) || !file_exists($path)) {
PEAR::raiseError("The output driver '$driver' wasn't found", NESEO_DRIVER_NOT_FOUND, PEAR_ERROR_TRIGGER, E_USER_ERROR);
}
require_once($path);
$driverClass = 'DB_NestedSet_'.$driver;
return new $driverClass($params);
}
// }}}
// {{{ setOptions()
/**
* Set's options for a specific output group (printTree, printListbox)
* This enables you to set specific options for each output method
*
* @param string $group Output group ATM 'printTree' or 'printListbox'
* @param array $options Hash with options
*
* @access public
* @return bool
*/
function setOptions($group, $options) {
$this->options[$group] = $options;
return true;
}
// }}}
// {{{ _getOptions()
/**
* Get's all option for a specific output group (printTree, printListbox)
*
* @param string $group Output group ATM 'printTree' or 'printListbox'
*
* @access private
* @return array Options
*/
function _getOptions($group) {
if (!isset($this->options[$group])) {
return array();
}
return $this->options[$group];
}
// }}}
// {{{ printTree()
/**
* Print's the current tree using the output driver
* Overriden by the driver class
*
* @access public
*/
function printTree() {
PEAR::raiseError("Method not available for this driver", NESEO_ERROR_NO_METHOD, PEAR_ERROR_TRIGGER, E_USER_ERROR);
}
// }}}
// {{{ printListbox()
/**
* Print's a listbox representing the current tree
* Overriden by the driver class
*
* @access public
*/
function printListbox() {
PEAR::raiseError("Method not available for this driver", NESEO_ERROR_NO_METHOD, PEAR_ERROR_TRIGGER, E_USER_ERROR);
}
// }}}
}
?>
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