addLink( array( 'rel' => 'stylesheet', 'type' => 'text/css', 'href' => $wgScriptPath . $wgCategoryTreeExtPath . '/CategoryTree.css' ) ); # Register css RTL file for CategoryTree if( $wgContLang->isRTL() ) { $outputPage->addLink( array( 'rel' => 'stylesheet', 'type' => 'text/css', 'href' => $wgScriptPath . $wgCategoryTreeExtPath . '/CategoryTree.rtl.css' ) ); } # Register main js file for CategoryTree $outputPage->addScript( "\n" ); # Add messages $outputPage->addScript( " \n" ); } /** * Ajax call. This is called by efCategoryTreeAjaxWrapper, which is used to * load CategoryTreeFunctions.php on demand. */ function ajax( $category, $mode ) { global $wgDBname; $title = self::makeTitle( $category ); if ( ! $title ) return false; #TODO: error message? $this->mIsAjaxRequest = true; # Retrieve page_touched for the category $dbkey = $title->getDBkey(); $dbr =& wfGetDB( DB_SLAVE ); $touched = $dbr->selectField( 'page', 'page_touched', array( 'page_namespace' => NS_CATEGORY, 'page_title' => $dbkey, ), __METHOD__ ); $mckey = "$wgDBname:categorytree($mode):$dbkey"; //FIXME: would need to add depth parameter. $response = new AjaxResponse(); if ( $response->checkLastModified( $touched ) ) { return $response; } if ( $response->loadFromMemcached( $mckey, $touched ) ) { return $response; } $html = $this->renderChildren( $title, $mode ); //FIXME: would need to pass depth parameter. if ( $html == '' ) $html = ' '; #HACK: Safari doesn't like empty responses. #see Bug 7219 and http://bugzilla.opendarwin.org/show_bug.cgi?id=10716 $response->addText( $html ); $response->storeInMemcached( $mckey, 86400 ); return $response; } /** * Custom tag implementation. This is called by efCategoryTreeParserHook, which is used to * load CategoryTreeFunctions.php on demand. */ function getTag( &$parser, $category, $mode, $hideroot = false, $style = '', $depth=1 ) { global $wgCategoryTreeDisableCache, $wgCategoryTreeDynamicTag; static $uniq = 0; $this->mIsAjaxRequest = false; $category = trim( $category ); if ( $category === '' ) { return false; } if ( $wgCategoryTreeDisableCache && !$wgCategoryTreeDynamicTag ) { $parser->disableCache(); } $title = self::makeTitle( $category ); if ( $title === false || $title === NULL ) return false; $html = ''; $html .= wfOpenElement( 'div', array( 'class' => 'CategoryTreeTag', 'style' => $style ) ); if ( !$title->getArticleID() ) { $html .= wfOpenElement( 'span', array( 'class' => 'CategoryTreeNotice' ) ); $html .= self::msg( 'not-found' , htmlspecialchars( $category ) ); $html .= wfCloseElement( 'span' ); } else { if ( !$hideroot ) $html .= CategoryTree::renderNode( $title, $mode, $depth>0, $wgCategoryTreeDynamicTag, $depth-1 ); else if ( !$wgCategoryTreeDynamicTag ) $html .= $this->renderChildren( $title, $mode, $depth-1 ); else { //FIXME: depth would need to be propagated here. this would imact the cache key, too $uniq += 1; $load = 'ct-' . $uniq . '-' . mt_rand( 1, 100000 ); $html .= wfOpenElement( 'script', array( 'type' => 'text/javascript', 'id' => $load ) ); $html .= 'categoryTreeLoadChildren("' . Xml::escapeJsString( $title->getDBKey() ) . '", "' . $mode . '", document.getElementById("' . $load . '").parentNode );'; $html .= wfCloseElement( 'script' ); } } $html .= wfCloseElement( 'div' ); $html .= "\n\t\t"; return $html; } /** * Returns a string with an HTML representation of the children of the given category. * $title must be a Title object */ function renderChildren( &$title, $mode = NULL, $depth=0 ) { global $wgCategoryTreeMaxChildren, $wgCategoryTreeDefaultMode; $dbr =& wfGetDB( DB_SLAVE ); #additional stuff to be used if "transaltion" by interwiki-links is desired $transFields = ''; $transJoin = ''; $transWhere = ''; if ( $mode === NULL ) $wgCategoryTreeDefaultMode; #namespace filter. Should be configurable if ( $mode == CT_MODE_ALL ) $nsmatch = ''; else if ( $mode == CT_MODE_PAGES ) $nsmatch = ' AND cat.page_namespace != ' . NS_IMAGE; else $nsmatch = ' AND cat.page_namespace = ' . NS_CATEGORY; $page = $dbr->tableName( 'page' ); $categorylinks = $dbr->tableName( 'categorylinks' ); $sql = "SELECT cat.page_namespace, cat.page_title, CASE WHEN cat.page_namespace=".NS_CATEGORY." THEN 0 ELSE 1 END AS presort $transFields FROM $page as cat JOIN $categorylinks ON cl_from = cat.page_id $transJoin WHERE cl_to = " . $dbr->addQuotes( $title->getDBKey() ) . " $nsmatch "./*AND cat.page_is_redirect = 0*/" $transWhere ORDER BY presort, cl_sortkey LIMIT " . (int)$wgCategoryTreeMaxChildren; $res = $dbr->query( $sql, __METHOD__ ); $s= ''; while ( $row = $dbr->fetchRow( $res ) ) { #TODO: translation support; ideally added to Title object $t = Title::makeTitle( $row['page_namespace'], $row['page_title'] ); $s .= $this->renderNode( $t, $mode, $depth>0, false, $depth-1 ); $s .= "\n\t\t"; } $dbr->freeResult( $res ); return $s; } /** * Returns a string with an HTML representation of the parents of the given category. * $title must be a Title object */ static function renderParents( &$title, $mode ) { global $wgCategoryTreeMaxChildren; $dbr =& wfGetDB( DB_SLAVE ); #additional stuff to be used if "transaltion" by interwiki-links is desired $transFields = ''; $transJoin = ''; $transWhere = ''; $categorylinks = $dbr->tableName( 'categorylinks' ); $sql = "SELECT " . NS_CATEGORY . " as page_namespace, cl_to as page_title $transFields FROM $categorylinks $transJoin WHERE cl_from = " . $title->getArticleID() . " $transWhere ORDER BY cl_to LIMIT " . (int)$wgCategoryTreeMaxChildren; $res = $dbr->query( $sql, __METHOD__ ); $special = Title::makeTitle( NS_SPECIAL, 'CategoryTree' ); $s= ''; while ( $row = $dbr->fetchRow( $res ) ) { #TODO: translation support; ideally added to Title object $t = Title::makeTitle( $row['page_namespace'], $row['page_title'] ); #$trans = $title->getLocalizedText(); $trans = ''; #place holder for when translated titles are available $label = htmlspecialchars( $t->getText() ); if ( $trans && $trans!=$label ) $label.= ' ' . wfElement( 'i', array( 'class' => 'translation'), $trans ); $wikiLink = $special->getLocalURL( 'target=' . $t->getPartialURL() . '&mode=' . $mode ); if ( $s !== '' ) $s .= ' | '; $s .= wfOpenElement( 'span', array( 'class' => 'CategoryTreeItem' ) ); $s .= wfOpenElement( 'a', array( 'class' => 'CategoryTreeLabel', 'href' => $wikiLink ) ) . $label . wfCloseElement( 'a' ); $s .= wfCloseElement( 'span' ); $s .= "\n\t\t"; } $dbr->freeResult( $res ); return $s; } /** * Returns a string with a HTML represenation of the given page. * $title must be a Title object */ function renderNode( &$title, $mode = NULL, $children = false, $loadchildren = false, $depth = 1 ) { global $wgCategoryTreeOmitNamespace, $wgCategoryTreeDefaultMode; static $uniq = 0; if ( $mode === NULL ) $wgCategoryTreeDefaultMode; $load = false; if ( $children && $loadchildren ) { $uniq += 1; $load = 'ct-' . $uniq . '-' . mt_rand( 1, 100000 ); $children = false; } $ns = $title->getNamespace(); $key = $title->getDBKey(); #$trans = $title->getLocalizedText(); $trans = ''; #place holder for when translated titles are available #when showing only categories, omit namespace in label unless we explicitely defined the configuration setting #patch contributed by Manuel Schneider , Bug 8011 if ( $wgCategoryTreeOmitNamespace || $mode == CT_MODE_CATEGORIES ) $label = htmlspecialchars( $title->getText() ); else $label = htmlspecialchars( $title->getPrefixedText() ); if ( $trans && $trans!=$label ) $label.= ' ' . wfElement( 'i', array( 'class' => 'translation'), $trans ); $wikiLink = $title->getLocalURL(); $labelClass = 'CategoryTreeLabel ' . ' CategoryTreeLabelNs' . $ns; if ( $ns == NS_CATEGORY ) { $labelClass .= ' CategoryTreeLabelCategory'; } else { $labelClass .= ' CategoryTreeLabelPage'; } if ( ( $ns % 2 ) > 0 ) $labelClass .= ' CategoryTreeLabelTalk'; $linkattr= array( 'href' => '#' ); if ( $load ) $linkattr[ 'id' ] = $load; if ( !$children ) { $txt = '+'; $linkattr[ 'onclick' ] = "this.href='javascript:void(0)'; categoryTreeExpandNode('".Xml::escapeJsString($key)."','".$mode."',this);"; # Don't load this message for ajax requests, so that we don't have to initialise $wgLang $linkattr[ 'title' ] = $this->mIsAjaxRequest ? '##LOAD##' : self::msg('expand'); } else { $txt = '–'; #NOTE: that's not a minus but a unicode ndash! $linkattr[ 'onclick' ] = "this.href='javascript:void(0)'; categoryTreeCollapseNode('".Xml::escapeJsString($key)."','".$mode."',this);"; $linkattr[ 'title' ] = self::msg('collapse'); $linkattr[ 'class' ] = 'CategoryTreeLoaded'; } $s = ''; #NOTE: things in CategoryTree.js rely on the exact order of tags! # Specifically, the CategoryTreeChildren div must be the first # sibling with nodeName = DIV of the grandparent of the expland link. $s .= wfOpenElement( 'div', array( 'class' => 'CategoryTreeSection' ) ); $s .= wfOpenElement( 'div', array( 'class' => 'CategoryTreeItem' ) ); if ( $ns == NS_CATEGORY ) { $s .= wfOpenElement( 'span', array( 'class' => 'CategoryTreeBullet' ) ); $s .= '[' . wfElement( 'a', $linkattr, $txt ) . '] '; $s .= wfCloseElement( 'span' ); } else { $s .= ' '; } $s .= wfOpenElement( 'a', array( 'class' => $labelClass, 'href' => $wikiLink ) ) . $label . wfCloseElement( 'a' ); $s .= wfCloseElement( 'div' ); $s .= "\n\t\t"; $s .= wfOpenElement( 'div', array( 'class' => 'CategoryTreeChildren', 'style' => $children ? "display:block" : "display:none" ) ); //HACK here? if ( $children ) $s .= $this->renderChildren( $title, $mode, $depth ); $s .= wfCloseElement( 'div' ); $s .= wfCloseElement( 'div' ); if ( $load ) { $s .= "\n\t\t"; $s .= wfOpenElement( 'script', array( 'type' => 'text/javascript' ) ); $s .= 'categoryTreeExpandNode("'.Xml::escapeJsString($key).'", "'.$mode.'", document.getElementById("'.$load.'") );'; $s .= wfCloseElement( 'script' ); } $s .= "\n\t\t"; return $s; } /** * Creates a Title object from a user provided (and thus unsafe) string */ static function makeTitle( $title ) { global $wgContLang, $wgCanonicalNamespaceNames; $title = trim($title); if ( $title === NULL || $title === '' || $title === false ) { return NULL; } # The title must be in the category namespace # Ignore a leading Category: if there is one $t = Title::newFromText( $title, NS_CATEGORY ); if ( $t && $t->getNamespace() != NS_CATEGORY ) { $title = "Category:$title"; $t = Title::newFromText( $title ); } return $t; } /** * load the CategoryTree internationalization file */ static function loadMessages() { global $wgLang; $messages= array(); $f= dirname( __FILE__ ) . '/CategoryTree.i18n.php'; include( $f ); $f= dirname( __FILE__ ) . '/CategoryTree.i18n.' . $wgLang->getCode() . '.php'; if ( file_exists( $f ) ) include( $f ); return $messages; } /** * Get a CategoryTree message, "categorytree-" prefix added automatically */ static function msg( $msg /*, ...*/ ) { static $initialized = false; global $wgMessageCache; if ( !$initialized ) { $wgMessageCache->addMessages( self::loadMessages() ); $initialized = true; } if ( $msg === false ) { return null; } $args = func_get_args(); $msg = array_shift( $args ); if ( $msg == '' ) { return wfMsgReal( $msg, $args ); } else { return wfMsgReal( "categorytree-$msg", $args ); } } } ?>