User:Cm/CategoryBreadcrumb

<?php
/** 
 * CategoryBreadcrumb extension
 *
 * @author Boudewijn Vahrmeijer
 * @version 2.1
 * @link http://www.mediawiki.org/wiki/Extension:CategoryBreadcrumb
 * 
 * Extended by Cynthia Mattingly @ Marketing Factory Consulting
 * 
 * Added support for Image pages and pages using CategoryTree
 * Added default breadcrumb first link to home page
 * 
 */
if ( ! defined( 'MEDIAWIKI' ) )
        die();
 
$wgExtensionCredits['parserhook'][] = array(
        'name' => 'Category Breadcrumb',
        'author' => 'Boudewijn Vahrmeijer',
        'url' => 'http://www.mediawiki.org/wiki/Extension:CategoryBreadcrumb',
        'version' => '2.1',
        'description' => 'DMOZ-style category breadcrumb for MediaWiki',
);
 
$wgUseCategoryBrowser = true;
 
// hook into SkinTemplate.php
$wgHooks['SkinTemplateOutputPageBeforeExec'][] = 'wfBreadCrumbsDisplay';
 
function wfBreadCrumbsDisplay(&$q, &$p) {
        global $wgOut, $wgArticle, $wgScriptPath;
 
        $pageClass = get_class($wgArticle);
        if ($wgArticle == null) {
                return true;    
        }
 
        $allowedClasses = array('CategoryPage', 'CategoryTreeCategoryPage', 'ImagePage');
 
        if (!in_array($pageClass, $allowedClasses) && $wgArticle->getTitle()->mNamespace != 0) {
                return true;
        }
 
        $cats = $q->getCategories();
 
        // kill the ugly category box below the page
    $p->set( 'catlinks', '');
        $homelink = '<a href="'.$wgScriptPath.'/">
                        <img src="'.$wgScriptPath.'/skins/common/images/mediawiki.png" width="20" height="20"> WikiName
                        </a>';
    if (trim($cats) == '') {
                $combine = $homelink.$wgOut->mBodytext;
                $p->setRef( 'bodytext', $combine );
        } else {
                $combine = array();
 
                // get category tree
                $tree = explode('<hr />', $cats);
 
                // set tree on top of text and register into $tpl
                $cats = explode('<br />', $tree[1]);
 
                //prepend the home link for each category
                foreach ($cats as $category) {
                        $combine[] = $homelink.' > '.$category;
                }
                $bodytext = implode('<br />', $combine).$wgOut->mBodytext;
 
                $p->setRef( 'bodytext', $bodytext);
        }
 
        return true;
 
}