mediawiki-extensions-Catego.../CategoryTreeFunctions.php
Brion Vibber c1f82b9325 * (bug 30834) Fix for incorrect cache handling of output language in CategoryTree ajax requests
Memcache key was not taking UI output language into account, and thus could serve you a cached record in another language from what should have been rendered for you.
Added UI language into the cache key, so they no longer interfere with each other.
2011-09-09 21:08:50 +00:00

777 lines
25 KiB
PHP

<?php
/**
* Core functions for the CategoryTree extension, an AJAX based gadget
* to display the category structure of a wiki
*
* @file
* @ingroup Extensions
* @author Daniel Kinzler, brightbyte.de
* @copyright © 2006-2007 Daniel Kinzler
* @license GNU General Public Licence 2.0 or later
*/
if ( !defined( 'MEDIAWIKI' ) ) {
echo( "This file is part of an extension to the MediaWiki software and cannot be used standalone.\n" );
die( 1 );
}
class CategoryTree {
var $mIsAjaxRequest = false;
var $mOptions = array();
function __construct( $options, $ajax = false ) {
global $wgCategoryTreeDefaultOptions;
$this->mIsAjaxRequest = $ajax;
# ensure default values and order of options. Order may become important, it may influence the cache key!
foreach ( $wgCategoryTreeDefaultOptions as $option => $default ) {
if ( isset( $options[$option] ) && !is_null( $options[$option] ) ) {
$this->mOptions[$option] = $options[$option];
} else {
$this->mOptions[$option] = $default;
}
}
$this->mOptions['mode'] = self::decodeMode( $this->mOptions['mode'] );
if ( $this->mOptions['mode'] == CT_MODE_PARENTS ) {
$this->mOptions['namespaces'] = false; # namespace filter makes no sense with CT_MODE_PARENTS
}
$this->mOptions['hideprefix'] = self::decodeHidePrefix( $this->mOptions['hideprefix'] );
$this->mOptions['showcount'] = self::decodeBoolean( $this->mOptions['showcount'] );
$this->mOptions['namespaces'] = self::decodeNamespaces( $this->mOptions['namespaces'] );
if ( $this->mOptions['namespaces'] ) {
# automatically adjust mode to match namespace filter
if ( sizeof( $this->mOptions['namespaces'] ) === 1
&& $this->mOptions['namespaces'][0] == NS_CATEGORY ) {
$this->mOptions['mode'] = CT_MODE_CATEGORIES;
} elseif ( !in_array( NS_IMAGE, $this->mOptions['namespaces'] ) ) {
$this->mOptions['mode'] = CT_MODE_PAGES;
} else {
$this->mOptions['mode'] = CT_MODE_ALL;
}
}
}
function getOption( $name ) {
return $this->mOptions[$name];
}
function isInverse( ) {
return $this->getOption( 'mode' ) == CT_MODE_PARENTS;
}
static function decodeNamespaces( $nn ) {
global $wgContLang;
if ( !$nn )
return false;
if ( !is_array( $nn ) )
$nn = preg_split( '![\s#:|]+!', $nn );
$namespaces = array();
foreach ( $nn as $n ) {
if ( is_int( $n ) ) {
$ns = $n;
}
else {
$n = trim( $n );
if ( $n === '' ) continue;
$lower = strtolower( $n );
if ( is_numeric( $n ) ) $ns = (int)$n;
elseif ( $n == '-' || $n == '_' || $n == '*' || $lower == 'main' ) $ns = NS_MAIN;
else $ns = $wgContLang->getNsIndex( $n );
}
if ( is_int( $ns ) ) {
$namespaces[] = $ns;
}
}
sort( $namespaces ); # get elements into canonical order
return $namespaces;
}
static function decodeMode( $mode ) {
global $wgCategoryTreeDefaultOptions;
if ( is_null( $mode ) ) return $wgCategoryTreeDefaultOptions['mode'];
if ( is_int( $mode ) ) return $mode;
$mode = trim( strtolower( $mode ) );
if ( is_numeric( $mode ) ) return (int)$mode;
if ( $mode == 'all' ) $mode = CT_MODE_ALL;
elseif ( $mode == 'pages' ) $mode = CT_MODE_PAGES;
elseif ( $mode == 'categories' || $mode == 'sub' ) $mode = CT_MODE_CATEGORIES;
elseif ( $mode == 'parents' || $mode == 'super' || $mode == 'inverse' ) $mode = CT_MODE_PARENTS;
elseif ( $mode == 'default' ) $mode = $wgCategoryTreeDefaultOptions['mode'];
return (int)$mode;
}
/**
* Helper function to convert a string to a boolean value.
* Perhaps make this a global function in MediaWiki proper
*/
static function decodeBoolean( $value ) {
if ( is_null( $value ) ) return null;
if ( is_bool( $value ) ) return $value;
if ( is_int( $value ) ) return ( $value > 0 );
$value = trim( strtolower( $value ) );
if ( is_numeric( $value ) ) return ( (int)$value > 0 );
if ( $value == 'yes' || $value == 'y' || $value == 'true' || $value == 't' || $value == 'on' ) return true;
elseif ( $value == 'no' || $value == 'n' || $value == 'false' || $value == 'f' || $value == 'off' ) return false;
elseif ( $value == 'null' || $value == 'default' || $value == 'none' || $value == 'x' ) return null;
else return false;
}
static function decodeHidePrefix( $value ) {
global $wgCategoryTreeDefaultOptions;
if ( is_null( $value ) ) return $wgCategoryTreeDefaultOptions['hideprefix'];
if ( is_int( $value ) ) return $value;
if ( $value === true ) return CT_HIDEPREFIX_ALWAYS;
if ( $value === false ) return CT_HIDEPREFIX_NEVER;
$value = trim( strtolower( $value ) );
if ( $value == 'yes' || $value == 'y' || $value == 'true' || $value == 't' || $value == 'on' ) return CT_HIDEPREFIX_ALWAYS;
elseif ( $value == 'no' || $value == 'n' || $value == 'false' || $value == 'f' || $value == 'off' ) return CT_HIDEPREFIX_NEVER;
// elseif ( $value == 'null' || $value == 'default' || $value == 'none' || $value == 'x' ) return $wgCategoryTreeDefaultOptions['hideprefix'];
elseif ( $value == 'always' ) return CT_HIDEPREFIX_ALWAYS;
elseif ( $value == 'never' ) return CT_HIDEPREFIX_NEVER;
elseif ( $value == 'auto' ) return CT_HIDEPREFIX_AUTO;
elseif ( $value == 'categories' || $value == 'category' || $value == 'smart' ) return CT_HIDEPREFIX_CATEGORIES;
else return $wgCategoryTreeDefaultOptions['hideprefix'];
}
/**
* Set the script tags in an OutputPage object
* @param OutputPage $outputPage
*/
static function setHeaders( $outputPage ) {
global $wgJsMimeType, $wgScriptPath, $wgContLang;
global $wgCategoryTreeHijackPageCategories, $wgCategoryTreeExtPath, $wgCategoryTreeVersion;
# Register css file for CategoryTree
$outputPage->addLink(
array(
'rel' => 'stylesheet',
'type' => 'text/css',
'href' => "$wgScriptPath$wgCategoryTreeExtPath/CategoryTree.css?$wgCategoryTreeVersion",
)
);
if ( $wgCategoryTreeHijackPageCategories ) {
# Register MSIE quirks
$outputPage->addScript(
"<!--[if IE]><link rel=\"stylesheet\" type=\"text/css\" src=\"{$wgScriptPath}{$wgCategoryTreeExtPath}/CategoryTreeIE.css?{$wgCategoryTreeVersion}\"/><![endif]-->
\n"
);
}
# Register css RTL file for CategoryTree
if ( $wgContLang->isRTL() ) {
$outputPage->addLink(
array(
'rel' => 'stylesheet',
'type' => 'text/css',
'href' => "$wgScriptPath$wgCategoryTreeExtPath/CategoryTree.rtl.css?$wgCategoryTreeVersion"
)
);
}
# Register main js file for CategoryTree
$outputPage->addScript(
"<script type=\"{$wgJsMimeType}\" src=\"{$wgScriptPath}{$wgCategoryTreeExtPath}/CategoryTree.js?{$wgCategoryTreeVersion}\">" .
"</script>\n"
);
# Add messages
$outputPage->addScript(
" <script type=\"{$wgJsMimeType}\">
var categoryTreeCollapseMsg = \"" . Xml::escapeJsString( wfMsgNoTrans( 'categorytree-collapse' ) ) . "\";
var categoryTreeExpandMsg = \"" . Xml::escapeJsString( wfMsgNoTrans( 'categorytree-expand' ) ) . "\";
var categoryTreeCollapseBulletMsg = \"" . Xml::escapeJsString( wfMsgNoTrans( 'categorytree-collapse-bullet' ) ) . "\";
var categoryTreeExpandBulletMsg = \"" . Xml::escapeJsString( wfMsgNoTrans( 'categorytree-expand-bullet' ) ) . "\";
var categoryTreeLoadMsg = \"" . Xml::escapeJsString( wfMsgNoTrans( 'categorytree-load' ) ) . "\";
var categoryTreeLoadingMsg = \"" . Xml::escapeJsString( wfMsgNoTrans( 'categorytree-loading' ) ) . "\";
var categoryTreeNothingFoundMsg = \"" . Xml::escapeJsString( wfMsgNoTrans( 'categorytree-nothing-found' ) ) . "\";
var categoryTreeNoSubcategoriesMsg = \"" . Xml::escapeJsString( wfMsgNoTrans( 'categorytree-no-subcategories' ) ) . "\";
var categoryTreeNoParentCategoriesMsg = \"" . Xml::escapeJsString( wfMsgNoTrans( 'categorytree-no-parent-categories' ) ) . "\";
var categoryTreeNoPagesMsg = \"" . Xml::escapeJsString( wfMsgNoTrans( 'categorytree-no-pages' ) ) . "\";
var categoryTreeErrorMsg = \"" . Xml::escapeJsString( wfMsgNoTrans( 'categorytree-error' ) ) . "\";
var categoryTreeRetryMsg = \"" . Xml::escapeJsString( wfMsgNoTrans( 'categorytree-retry' ) ) . "\";
</script>\n"
);
}
static function getJsonCodec() {
static $json = null;
if ( !$json ) {
$json = new Services_JSON(); # recycle API's JSON codec implementation
}
return $json;
}
static function encodeOptions( $options, $enc ) {
if ( $enc == 'mode' || $enc == '' ) {
$opt = $options['mode'];
} elseif ( $enc == 'json' ) {
$json = self::getJsonCodec(); // XXX: this may be a bit heavy...
$opt = $json->encode( $options );
} else {
throw new MWException( 'Unknown encoding for CategoryTree options: ' . $enc );
}
return $opt;
}
static function decodeOptions( $options, $enc ) {
if ( $enc == 'mode' || $enc == '' ) {
$opt = array( "mode" => $options );
} elseif ( $enc == 'json' ) {
$json = self::getJsonCodec(); // XXX: this may be a bit heavy...
$opt = $json->decode( $options );
$opt = get_object_vars( $opt );
} else {
throw new MWException( 'Unknown encoding for CategoryTree options: ' . $enc );
}
return $opt;
}
function getOptionsAsCacheKey( $depth = null ) {
$key = "";
foreach ( $this->mOptions as $k => $v ) {
if ( is_array( $v ) ) $v = implode( '|', $v );
$key .= $k . ':' . $v . ';';
}
if ( !is_null( $depth ) ) $key .= ";depth=" . $depth;
return $key;
}
function getOptionsAsJsStructure( $depth = null ) {
if ( !is_null( $depth ) ) {
$opt = $this->mOptions;
$opt['depth'] = $depth;
$s = self::encodeOptions( $opt, 'json' );
} else {
$s = self::encodeOptions( $this->mOptions, 'json' );
}
return $s;
}
function getOptionsAsJsString( $depth = NULL ) {
return Xml::escapeJsString( $s );
}
function getOptionsAsUrlParameters() {
$u = '';
foreach ( $this->mOptions as $k => $v ) {
if ( $u != '' ) $u .= '&';
$u .= $k . '=' . urlencode( $v ) ;
}
return $u;
}
/**
* Ajax call. This is called by efCategoryTreeAjaxWrapper, which is used to
* load CategoryTreeFunctions.php on demand.
*/
function ajax( $category, $depth = 1 ) {
global $wgLang, $wgContLang, $wgRenderHashAppend;
$title = self::makeTitle( $category );
if ( ! $title ) {
return false; # TODO: error message?
}
# 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 = wfMemcKey( "categorytree(" . $this->getOptionsAsCacheKey( $depth ) . ")", $dbkey, $wgLang->getCode(), $wgContLang->getExtraHashOptions(), $wgRenderHashAppend );
$response = new AjaxResponse();
if ( $response->checkLastModified( $touched ) ) {
return $response;
}
if ( $response->loadFromMemcached( $mckey, $touched ) ) {
return $response;
}
$html = $this->renderChildren( $title, $depth );
if ( $html == '' ) {
# HACK: Safari doesn't like empty responses.
# see Bug 7219 and http://bugzilla.opendarwin.org/show_bug.cgi?id=10716
$html = ' ';
}
$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, $hideroot = false, $attr, $depth = 1, $allowMissing = false ) {
global $wgCategoryTreeDisableCache, $wgCategoryTreeDynamicTag;
static $uniq = 0;
$category = trim( $category );
if ( $category === '' ) {
return false;
}
if ( $parser && $wgCategoryTreeDisableCache && !$wgCategoryTreeDynamicTag ) {
$parser->disableCache();
}
$title = self::makeTitle( $category );
if ( $title === false || $title === null ) {
return false;
}
if ( isset( $attr['class'] ) ) {
$attr['class'] .= ' CategoryTreeTag';
} else {
$attr['class'] = ' CategoryTreeTag';
}
$html = '';
$html .= Xml::openElement( 'div', $attr );
if ( !$allowMissing && !$title->getArticleID() ) {
$html .= Xml::openElement( 'span', array( 'class' => 'CategoryTreeNotice' ) );
if ( $parser ) {
$html .= $parser->recursiveTagParse( wfMsgNoTrans( 'categorytree-not-found', $category ) );
} else {
$html .= wfMsgExt( 'categorytree-not-found', 'parseinline', htmlspecialchars( $category ) );
}
$html .= Xml::closeElement( 'span' );
}
else {
if ( !$hideroot ) {
$html .= $this->renderNode( $title, $depth, $wgCategoryTreeDynamicTag );
} elseif ( !$wgCategoryTreeDynamicTag ) {
$html .= $this->renderChildren( $title, $depth );
} else {
$uniq += 1;
$load = 'ct-' . $uniq . '-' . mt_rand( 1, 100000 );
$html .= Xml::openElement( 'script', array( 'type' => 'text/javascript', 'id' => $load ) );
$html .= 'categoryTreeLoadChildren("' . Xml::escapeJsString( $title->getDBkey() ) . '", ' . $this->getOptionsAsJsStructure( $depth ) . ', document.getElementById("' . $load . '").parentNode);';
$html .= Xml::closeElement( 'script' );
}
}
$html .= Xml::closeElement( '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, $depth = 1 ) {
global $wgCategoryTreeMaxChildren, $wgCategoryTreeUseCategoryTable;
if ( $title->getNamespace() != NS_CATEGORY ) {
// Non-categories can't have children. :)
return '';
}
$dbr = wfGetDB( DB_SLAVE );
$inverse = $this->isInverse();
$mode = $this->getOption( 'mode' );
$namespaces = $this->getOption( 'namespaces' );
$tables = array( 'page', 'categorylinks' );
$fields = array( 'page_id', 'page_namespace', 'page_title',
'page_is_redirect', 'page_len', 'page_latest', 'cl_to',
'cl_from' );
$where = array();
$joins = array();
$options = array( 'ORDER BY' => 'cl_type, cl_sortkey', 'LIMIT' => $wgCategoryTreeMaxChildren );
if ( $inverse ) {
$joins['categorylinks'] = array( 'RIGHT JOIN', array( 'cl_to = page_title', 'page_namespace' => NS_CATEGORY ) );
$where['cl_from'] = $title->getArticleId();
} else {
$joins['categorylinks'] = array( 'JOIN', 'cl_from = page_id' );
$where['cl_to'] = $title->getDBkey();
$options['USE INDEX']['categorylinks'] = 'cl_sortkey';
# namespace filter.
if ( $namespaces ) {
# NOTE: we assume that the $namespaces array contains only integers! decodeNamepsaces makes it so.
$where['page_namespace'] = $namespaces;
} elseif ( $mode != CT_MODE_ALL ) {
if ( $mode == CT_MODE_PAGES ) {
$where['cl_type'] = array( 'page', 'subcat' );
} else {
$where['cl_type'] = 'subcat';
}
}
}
# fetch member count if possible
$doCount = !$inverse && $wgCategoryTreeUseCategoryTable;
if ( $doCount ) {
$tables = array_merge( $tables, array( 'category' ) );
$fields = array_merge( $fields, array( 'cat_id', 'cat_title', 'cat_subcats', 'cat_pages', 'cat_files' ) );
$joins['category'] = array( 'LEFT JOIN', array( 'cat_title = page_title', 'page_namespace' => NS_CATEGORY ) );
}
$res = $dbr->select( $tables, $fields, $where, __METHOD__, $options, $joins );
# collect categories separately from other pages
$categories = '';
$other = '';
foreach ( $res as $row ) {
# NOTE: in inverse mode, the page record may be null, because we use a right join.
# happens for categories with no category page (red cat links)
if ( $inverse && $row->page_title === null ) {
$t = Title::makeTitle( NS_CATEGORY, $row->cl_to );
} else {
# TODO: translation support; ideally added to Title object
$t = Title::newFromRow( $row );
}
$cat = null;
if ( $doCount && $row->page_namespace == NS_CATEGORY ) {
$cat = Category::newFromRow( $row, $t );
}
$s = $this->renderNodeInfo( $t, $cat, $depth - 1, false );
$s .= "\n\t\t";
if ( $row->page_namespace == NS_CATEGORY ) {
$categories .= $s;
} else {
$other .= $s;
}
}
return $categories . $other;
}
/**
* Returns a string with an HTML representation of the parents of the given category.
* @var $title Title
*/
function renderParents( $title ) {
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";
$sql = $dbr->limitResult( $sql, (int)$wgCategoryTreeMaxChildren );
$res = $dbr->query( $sql, __METHOD__ );
$special = SpecialPage::getTitleFor( 'CategoryTree' );
$s = '';
foreach ( $res as $row ) {
# TODO: translation support; ideally added to Title object
$t = Title::newFromRow( $row );
# $trans = $title->getLocalizedText();
$trans = ''; # place holder for when translated titles are available
$label = htmlspecialchars( $t->getText() );
if ( $trans && $trans != $label ) $label .= ' ' . Xml::element( 'i', array( 'class' => 'translation' ), $trans );
$wikiLink = $special->getLocalURL( 'target=' . $t->getPartialURL() . '&' . $this->getOptionsAsUrlParameters() );
if ( $s !== '' ) $s .= wfMsgExt( 'pipe-separator' , 'escapenoentities' );
$s .= Xml::openElement( 'span', array( 'class' => 'CategoryTreeItem' ) );
$s .= Xml::openElement( 'a', array( 'class' => 'CategoryTreeLabel', 'href' => $wikiLink ) ) . $label . Xml::closeElement( 'a' );
$s .= Xml::closeElement( 'span' );
$s .= "\n\t\t";
}
return $s;
}
/**
* Returns a string with a HTML represenation of the given page.
* $title must be a Title object
*/
function renderNode( $title, $children = 0, $loadchildren = false ) {
global $wgCategoryTreeUseCategoryTable;
if ( $wgCategoryTreeUseCategoryTable && $title->getNamespace() == NS_CATEGORY && !$this->isInverse() ) {
$cat = Category::newFromTitle( $title );
} else {
$cat = null;
}
return $this->renderNodeInfo( $title, $cat, $children, $loadchildren );
}
/**
* Returns a string with a HTML represenation of the given page.
* $info must be an associative array, containing at least a Title object under the 'title' key.
*/
function renderNodeInfo( $title, $cat, $children = 0, $loadchildren = false ) {
static $uniq = 0;
$mode = $this->getOption( 'mode' );
$load = false;
if ( $children > 0 && $loadchildren ) {
$uniq += 1;
$load = 'ct-' . $uniq . '-' . mt_rand( 1, 100000 );
}
$ns = $title->getNamespace();
$key = $title->getDBkey();
# $trans = $title->getLocalizedText();
$trans = ''; # place holder for when translated titles are available
$hideprefix = $this->getOption( 'hideprefix' );
if ( $hideprefix == CT_HIDEPREFIX_ALWAYS ) {
$hideprefix = true;
} elseif ( $hideprefix == CT_HIDEPREFIX_AUTO ) {
$hideprefix = ( $mode == CT_MODE_CATEGORIES );
} elseif ( $hideprefix == CT_HIDEPREFIX_CATEGORIES ) {
$hideprefix = ( $ns == NS_CATEGORY );
} else {
$hideprefix = true;
}
# when showing only categories, omit namespace in label unless we explicitely defined the configuration setting
# patch contributed by Manuel Schneider <manuel.schneider@wikimedia.ch>, Bug 8011
if ( $hideprefix ) {
$label = htmlspecialchars( $title->getText() );
} else {
$label = htmlspecialchars( $title->getPrefixedText() );
}
if ( $trans && $trans != $label ) {
$label .= ' ' . Xml::element( 'i', array( 'class' => 'translation' ), $trans );
}
$labelClass = 'CategoryTreeLabel ' . ' CategoryTreeLabelNs' . $ns;
if ( !$title->getArticleId() ) {
$labelClass .= ' new';
$wikiLink = $title->getLocalURL( 'action=edit&redlink=1' );
} else {
$wikiLink = $title->getLocalURL();
}
if ( $ns == NS_CATEGORY ) {
$labelClass .= ' CategoryTreeLabelCategory';
} else {
$labelClass .= ' CategoryTreeLabelPage';
}
if ( ( $ns % 2 ) > 0 ) {
$labelClass .= ' CategoryTreeLabelTalk';
}
$count = false;
$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 .= Xml::openElement( 'div', array( 'class' => 'CategoryTreeSection' ) );
$s .= Xml::openElement( 'div', array( 'class' => 'CategoryTreeItem' ) );
$attr = array( 'class' => 'CategoryTreeBullet' );
# Get counts, with conversion to integer so === works
$pageCount = $cat ? intval( $cat->getPageCount() ) : 0;
$subcatCount = $cat ? intval( $cat->getSubcatCount() ) : 0;
$fileCount = $cat ? intval( $cat->getFileCount() ) : 0;
if ( $ns == NS_CATEGORY ) {
if ( $cat ) {
if ( $mode == CT_MODE_CATEGORIES ) {
$count = $subcatCount;
} elseif ( $mode == CT_MODE_PAGES ) {
$count = $pageCount - $fileCount;
} else {
$count = $pageCount;
}
}
if ( $count === 0 ) {
$bullet = wfMsgNoTrans( 'categorytree-empty-bullet' ) . ' ';
$attr['class'] = 'CategoryTreeEmptyBullet';
} else {
$linkattr = array( );
if ( $load ) {
$linkattr[ 'id' ] = $load;
}
$linkattr[ 'class' ] = "CategoryTreeToggle";
$linkattr['style'] = 'display: none;'; // Unhidden by JS
if ( $children == 0 || $loadchildren ) {
$tag = 'span';
$txt = wfMsgNoTrans( 'categorytree-expand-bullet' );
$linkattr[ 'onclick' ] = "if (this.href) this.href='javascript:void(0)'; categoryTreeExpandNode('" . Xml::escapeJsString( $key ) . "'," . $this->getOptionsAsJsStructure() . ",this);";
# Don't load this message for ajax requests, so that we don't have to initialise $wgLang
$linkattr[ 'title' ] = $this->mIsAjaxRequest ? '##LOAD##' : wfMsgNoTrans( 'categorytree-expand' );
} else {
$tag = 'span';
$txt = wfMsgNoTrans( 'categorytree-collapse-bullet' );
$linkattr[ 'onclick' ] = "if (this.href) this.href='javascript:void(0)'; categoryTreeCollapseNode('" . Xml::escapeJsString( $key ) . "'," . $this->getOptionsAsJsStructure() . ",this);";
$linkattr[ 'title' ] = wfMsgNoTrans( 'categorytree-collapse' );
$linkattr[ 'class' ] .= ' CategoryTreeLoaded';
}
if ( $tag == 'a' ) {
$linkattr[ 'href' ] = $wikiLink;
}
$bullet = Xml::openElement( $tag, $linkattr ) . $txt . Xml::closeElement( $tag ) . ' ';
}
} else {
$bullet = wfMsgNoTrans( 'categorytree-page-bullet' );
}
$s .= Xml::tags( 'span', $attr, $bullet ) . ' ';
$s .= Xml::openElement( 'a', array( 'class' => $labelClass, 'href' => $wikiLink ) ) . $label . Xml::closeElement( 'a' );
if ( $count !== false && $this->getOption( 'showcount' ) ) {
$pages = $pageCount - $subcatCount - $fileCount;
$attr = array(
'title' => wfMsgExt( 'categorytree-member-counts', 'parsemag', $subcatCount, $pages , $fileCount, $pageCount, $count )
);
global $wgContLang, $wgLang;
$s .= $wgContLang->getDirMark() . ' ';
$s .= Xml::tags( 'span', $attr,
wfMsgExt( 'categorytree-member-num',
array( 'parsemag', 'escapenoentities' ),
$subcatCount,
$pages,
$fileCount,
$pageCount,
$wgLang->formatNum( $count ) ) );
}
$s .= Xml::closeElement( 'div' );
$s .= "\n\t\t";
$s .= Xml::openElement( 'div', array( 'class' => 'CategoryTreeChildren', 'style' => $children > 0 ? "display:block" : "display:none" ) );
if ( $ns == NS_CATEGORY && $children > 0 && !$loadchildren ) {
$children = $this->renderChildren( $title, $children );
if ( $children == '' ) {
$s .= Xml::openElement( 'i', array( 'class' => 'CategoryTreeNotice' ) );
if ( $mode == CT_MODE_CATEGORIES ) {
$s .= wfMsgExt( 'categorytree-no-subcategories', 'parsemag' );
} elseif ( $mode == CT_MODE_PAGES ) {
$s .= wfMsgExt( 'categorytree-no-pages', 'parsemag' );
} elseif ( $mode == CT_MODE_PARENTS ) {
$s .= wfMsgExt( 'categorytree-no-parent-categories', 'parsemag' );
} else {
$s .= wfMsgExt( 'categorytree-nothing-found', 'parsemag' );
}
$s .= Xml::closeElement( 'i' );
} else {
$s .= $children;
}
}
$s .= Xml::closeElement( 'div' );
$s .= Xml::closeElement( 'div' );
if ( $load ) {
$s .= "\n\t\t";
$s .= Xml::openElement( 'script', array( 'type' => 'text/javascript' ) );
$s .= 'categoryTreeExpandNode("' . Xml::escapeJsString( $key ) . '", ' . $this->getOptionsAsJsStructure( $children ) . ', document.getElementById("' . $load . '"));';
$s .= Xml::closeElement( 'script' );
}
$s .= "\n\t\t";
return $s;
}
/**
* Creates a Title object from a user provided (and thus unsafe) string
*/
static function makeTitle( $title ) {
$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 || $t->getInterWiki() != '' ) {
// If we were given something like "Wikipedia:Foo" or "Template:",
// try it again but forced.
$title = "Category:$title";
$t = Title::newFromText( $title );
}
return $t;
}
}