Extension:Livelets.php

<?

1. Extension:LiveletsTemplate:Php

These are the MediaWiki extensions we're using and/or developing. Please refer to the information on the mediawiki.org wiki for installation and usage details. Extensions here which have no corresponding mediawiki article are either not ready for use or have been superseded. You can also browse our extension code in our local Subversion repository or our GitHub mirror.

Scripts and articles related to Extension:Livelets, see also WikletsCategory:Extensions in progress

1. - Allows articles to be transcluded which load after the main page content and can update dynamically with Ajax
2. - See http://www.mediawiki.org/wiki/Extension:Livelets for installation and usage details
3. - Licenced under LGPL (http://www.gnu.org/copyleft/lesser.html)
4. - Author: http://www.organicdesign.co.nz/nad

define('LIVELETS_VERSION', '0.2.6, 2007-11-05');

$wgLiveletsMagic = 'live'; # the parser-function name for doing live-transclusions

$wgLiveletsUseSWF = false; # Set this to true to use SWF to make livelets fully event-driven (no polling for change) $wgLiveletsSwfBg = '#ffffff'; # The background colour of the embedded SWF $wgLiveletsPort = '1729'; # The port that Livelets.pl can be reached on (using $wgServer:$wgLiveletsPort)

$wgLiveletsPath = dirname(__FILE__); $wgLiveletsBaseUrl = preg_replace('|^.+(?=/extensions)|',$wgScriptPath,$wgLiveletsPath);

$wgLiveletsDefaultContent = "

<img src='$wgLiveletsBaseUrl/wait.gif'/>

";

$wgExtensionFunctions[] = 'wfSetupLivelets'; $wgHooks['LanguageGetMagic'][] = 'wfLiveletsLanguageGetMagic';

$wgExtensionCredits['parserhook'][] = array( 'name' => 'Livelets', 'author' => 'User:Nad', 'description' => 'Allows articles to be transcluded which load after the main page content and can update dynamically with Ajax', 'url' => 'http://www.mediawiki.org/wiki/Extension:Livelets', 'version' => LIVELETS_VERSION );

class Livelets {

var $version = LIVELETS_VERSION; var $id = 0;

# Constructor function Livelets() { global $IP,$wgOut,$wgParser,$wgServer,$wgLiveletsMagic,$wgLiveletsUseSwf,$wgLiveletsSwfBg,$wgLiveletsPort;

# Activate the #live parser-function $wgParser->setFunctionHook($wgLiveletsMagic,array($this,'functionHook'));

# Embed the SWF if enabled (SWF must be requested from Livelets.pl) if ($wgLiveletsUseSwf) { $swf = "$wgServer:$wgLiveletsPort/Livelets.swf"; $wgOut->addHTML("<object type=\"application/x-shockwave-flash\" data=\"$swf\" width=\"1\" height=\"1\"> <param name=\"movie\" value=\"$swf\" /><param name=\"bgcolor\" value=\"$wgLiveletsSwfBg\"/></object>"); } }

# Render livelet container function functionHook(&$parser) { global $wgScript,$wgTitle,$wgLiveletsPath,$wgLiveletsDefaultContent;

# Process parameters $argv = array(); foreach (func_get_args() as $arg) if (!is_object($arg)) { if (preg_match('/^([a-z0-9_]+?)\\s*=(.+)$/is',$arg,$match)) $argv[trim($match[1])] = trim($match[2]); else $argv['title'] = trim($arg); } $title = $argv['title']; $update = isset($argv['update']) ? $argv['update'] : 0; unset($argv['update']); if (isset($argv['type'])) $type = $argv['type']; unset($argv['type']);

# Render container $args = ; foreach ($argv as $k => $v) $args .= " $k=\"$v\""; $id = 'livelet'.$this->id++;

$html = "<div$args id='$id'>$wgLiveletsDefaultContent";

if ($update >= 0) $html .= "<script type='text/javascript'>x = sajax_do_call('wfSimpleFormsAjax',['title=$title','pagename={$wgTitle->getFullText()}'],document.getElementById('$id'))</script>";

return array($html,'isHTML' => true,'noparse' => true); }

}

1. Called from $wgExtensionFunctions array when initialising extensions

function wfSetupLivelets() { global $wgLivelets; $wgLivelets = new Livelets(); }

1. Needed in MediaWiki >1.8.0 for magic word hooks to work properly

function wfLiveletsLanguageGetMagic(&$magicWords,$langCode = 0) { global $wgLiveletsMagic; $magicWords[$wgLiveletsMagic] = array(0,$wgLiveletsMagic); return true; }