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<?php
/**
* This file implements the Plug class (EXPERIMENTAL)
*
* This is where you can plug-in some plug-ins :)
*
* b2evolution - {@link http://b2evolution.net/}
* Released under GNU GPL License - {@link http://b2evolution.net/about/license.html}
* @copyright (c)2003-2005 by Francois PLANQUE - {@link http://fplanque.net/}
*
* @package evocore
*/
if( !defined('DB_USER') ) die( 'Please, do not access this page directly.' );
/**
* Includes:
*/
require_once dirname(__FILE__)."/$core_dirout/$plugins_subdir/plugin.class.php";
/**
* Plug Class
*
* @package evocore
*/
class Plug
{
/**#@+
* @access private
*/
var $collection;
/**
* Array of loaded plug-ins:
*/
var $Plugins = array();
var $index_Plugins = array();
/**
* Path to plug-ins:
*/
var $plugins_path;
/**
* Has the plug initialized? (plugins loaded?)
*/
var $initialized = false;
/**
* Current object idx in array:
*/
var $current_idx = 0;
/**#@-*/
/*
* Constructor
*
* {@internal Plug::Plug(-)}}
*
* @param string collection = name of plugins subdir
*/
function Plug( $collection )
{
global $core_dirout, $plugins_subdir;
$this->collection = $collection;
// Set plugin path for this collection:
$this->plugins_path = dirname(__FILE__).'/'.$core_dirout.'/'.$plugins_subdir.'/'.$collection.'s';
}
/*
* Initialize Plug if it has not been done before.
*
* Load the plugins.
*
* {@internal Plug::init(-)}}
*/
function init( )
{
if( ! $this->initialized )
{
// Go through directory:
$this_dir = dir( $this->plugins_path );
while( $this_file = $this_dir->read())
{
if( preg_match( '/^_.+\.'.$this->collection.'\.php$/', $this_file ) && is_file( $this->plugins_path. '/'. $this_file ) )
{ // Valid plugin file name:
// echo 'Loading ', $this_file, '...<br />';
// Load the plugin:
require $this->plugins_path. '/'. $this_file;
}
}
// Sort array by priority:
usort( $this->Plugins, 'sort_Plugin' );
$this->initialized = true;
}
}
/*
* Register a plugin.
*
* Will be called by plugin includes when they are called by init()
*
* {@internal Plug::register(-)}}
*
* @access private
*/
function register( & $Plugin )
{
$this->Plugins[] = & $Plugin;
$this->index_Plugins[ $Plugin->code ] = & $Plugin;
}
/*
* Get next plugin in list:
*
* {@internal Plug::get_next(-)}}
*
* @return Plugin (false if no more plugin).
*/
function get_next()
{
$this->init(); // Init if not done yet.
if( $this->current_idx >= count( $this->Plugins ) )
{
return false;
}
return $this->Plugins[ $this->current_idx++ ];
}
/**
* Rewind iterator
*
* {@internal Plug::restart(-) }}
*/
function restart()
{
$this->current_idx = 0;
}
}
function sort_Plugin( & $a, & $b )
{
return $a->priority - $b->priority;
}
?>
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