Hlavný vývojár CMS b2evolution Francois PLANQUE oznámil zaujímajú zmenu, ktorú prinesie pripravovaná verzia 0.9.2. tohto systému. Jedná sa o implementáciu tzv. udalostí do pluginov, ktoré umožnia rozlíšiť, kedy sa má konkrétny plugin vykonať v závislosti od toho, akú operáciu weblog vykonáva.
Dôvodom tejto určite pozitívnej zmeny je zámer autorov uľahčiť užívateľom personalizáciu b2evolution. V súčasnosti sa zmeny zo strany užívateľov diali hlavne formou hackovania kódu, čo prinášalo problémy pre upgrade na novšiu verziu, keď niektoré zásahy užívateľa sa stali nefunkčné a bolo potrebné opäť hackovať. Tento problém by nemal byť pri využívaní pluginov, kde by pri upgrade mali pluginy ďalej fungovať, prípadne si budú vyžadovať len malé úpravy kódu.

Nová verzia 0.9.2 momentálne ešte nie je dostupná na domovskej stránke b2evolution, ale je možné si ju prehliadať v CVS b2evo.

Zverejnený bol už dokonca aj návod, ako si vytvárať vlastné pluginy.

Pre záujemcov o kód vzorového pluginu, na ktorý sa odvoláva vyššie spomenutý návod uvádzam v pokračovaní článku jeho kód, aby ste nemuseli vstupovať do CVS b2evo.

_test.plugin.php

<?php
/**
* This file implements the TEST plugin.
*
* This file is part of the b2evolution project - {@link http://b2evolution.net/}
*
* @copyright (c)2003-2004 by Francois PLANQUE - {@link http://fplanque.net/}
*
* @license http://b2evolution.net/about/license.html GNU General Public License (GPL)
* {@internal
* b2evolution is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* b2evolution 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. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with b2evolution; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
* }}
*
* @package plugins
*
* {@internal Below is a list of authors who have contributed to design/coding of this file: }}
* @author fplanque: François PLANQUE - {@link http://fplanque.net/}
*
* @version $Id: _test.plugin.php,v 1.5 2004/09/26 17:41:58 fplanque Exp $
*/
if( !defined('DB_USER') ) die( 'Please, do not access this page directly.' );
 
 
/**
* TEST Plugin
*
* This plugin responds to virtually all possible plugin events :P
*/
class test_plugin extends Plugin
{
/**
* Variables below MUST be overriden by plugin implementations,
* either in the subclass declaration or in the subclass constructor.
*/
var $name = 'Test';
var $code = 'evo_TEST';
var $priority = 50;
var $version = 'CVS $Revision: 1.5 $';
var $author = 'The b2evo Group';
var $help_url = 'http://b2evolution.net/';
/**
* Variables below MAY be overriden.
*/
var $is_tool = true;
var $apply_when = 'opt-out';
var $apply_to_html = true;
var $apply_to_xml = true;
 
 
/**
* Constructor.
*
* Should set name and description in a localizable fashion.
* NOTE FOR PLUGIN DEVELOPPERS UNFAMILIAR WITH OBJECT ORIENTED DEV:
* This function has the same name as the class, this makes it a "constructor".
* This means that this function will be called automagically by PHP when this
* plugin class is instanciated ("loaded").
*
* {@internal test_plugin::test_plugin(-)}}
*/
function test_plugin()
{
$this->short_desc = T_('Test plugin');
$this->long_desc = T_('This plugin responds to virtually all possible plugin events :P');
}
 
 
/**
/**
* Event handlers:
*/
 
 
/**
* Event handler: Called when ending the admin html head section.
*
* {@internal test_plugin::AdminEndHtmlHead(-)}}
*
* @param array Associative array of parameters
* @return boolean did we do something?
*/
function AdminEndHtmlHead( & $params )
{
echo '<!-- This comment was added by the TEST plugin -->';
 
return true;
}
 
 
/**
* Event handler: Called right after displaying the admin page footer.
*
* {@internal test_plugin::AdminAfterPageFooter(-)}}
*
* @param array Associative array of parameters
* @return boolean did we do something?
*/
function AdminAfterPageFooter( & $params )
{
echo '<p class="footer">This is the TEST plugin responding to the AdminAfterPageFooter event!</p>';
 
return true;
}
 
 
/**
* Event handler: Called when displaying editor toolbars.
*
* {@internal test_plugin::DisplayToolbar(-)}}
*
* @param array Associative array of parameters
* @return boolean did we display a toolbar?
*/
function DisplayToolbar( & $params )
{
echo '<div class="edit_toolbar">This is the TEST Toolbar</div>';
 
return true;
}
 
 
/**
* Event handler: Called when displaying editor buttons.
*
* {@internal test_plugin::DisplayEditorButton(-)}}
*
* @param array Associative array of parameters
* @return boolean did we display ?
*/
function DisplayEditorButton( & $params )
{
?>
<input type="button" value="TEST" onclick="alert('Hi! This is the TEST plugin (DisplayEditorButton)!');" />
<?php
return true;
}
 
 
/**
/**
* Event handler: Called when rendering text.
*
* Perform rendering
*
* {@internal test_plugin::Render(-)}}
*
* @param array Associative array of parameters
* (Output format, see {@link format_to_output()})
* @return boolean true if we can render something for the required output format
*/
function Render( & $params )
{
if( ! parent::Render( $params ) )
{ // We cannot render the required format
return false;
}
 
$params['data'] = ‘TEST['.$params['data'].’]TEST’;
 
return true;
}
 
 
/**
* Event handler: Called when displaying the tool menu.
*
* {@internal test_plugin::ToolMenu(-)}}
*
* @param array Associative array of parameters
* @return boolean did we display a toolbar?
*/
function ToolMenu( $params )
{
echo ‘Hello, This is the ToolMenu for the TEST plugin.’;
return true;
}
}
?>