mirror of
https://gerrit.wikimedia.org/r/mediawiki/extensions/CategoryTree
synced 2024-11-27 09:43:06 +00:00
541 lines
16 KiB
PHP
541 lines
16 KiB
PHP
<?php
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/**
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* © 2006-2007 Daniel Kinzler
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License along
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* with this program; if not, write to the Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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* http://www.gnu.org/copyleft/gpl.html
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*
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* @file
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* @ingroup Extensions
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* @author Daniel Kinzler, brightbyte.de
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*/
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namespace MediaWiki\Extension\CategoryTree;
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use ExtensionRegistry;
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use IContextSource;
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use MediaWiki\Category\Category;
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use MediaWiki\Config\Config;
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use MediaWiki\Html\Html;
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use MediaWiki\Linker\LinkRenderer;
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use MediaWiki\MediaWikiServices;
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use MediaWiki\Output\OutputPage;
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use MediaWiki\SpecialPage\SpecialPage;
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use MediaWiki\Title\Title;
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use Parser;
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use RequestContext;
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use Wikimedia\Rdbms\IConnectionProvider;
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/**
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* Core functions for the CategoryTree extension, an AJAX based gadget
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* to display the category structure of a wiki
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*/
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class CategoryTree {
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/** @var OptionManager */
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public $optionManager;
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/** @var Config */
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private $config;
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/** @var IConnectionProvider */
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private $dbProvider;
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/** @var LinkRenderer */
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private $linkRenderer;
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/**
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* @param array $options
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* @param Config $config
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* @param IConnectionProvider $dbProvider
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* @param LinkRenderer $linkRenderer
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*/
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public function __construct(
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array $options,
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Config $config,
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IConnectionProvider $dbProvider,
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LinkRenderer $linkRenderer
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) {
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$this->optionManager = new OptionManager( $options, $config );
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$this->config = $config;
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$this->dbProvider = $dbProvider;
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$this->linkRenderer = $linkRenderer;
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}
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/**
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* Add ResourceLoader modules to the OutputPage object
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* @param OutputPage $outputPage
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*/
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public static function setHeaders( OutputPage $outputPage ) {
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# Add the modules
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$outputPage->addModuleStyles( 'ext.categoryTree.styles' );
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$outputPage->addModules( 'ext.categoryTree' );
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}
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/**
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* Custom tag implementation. This is called by Hooks::parserHook, which is used to
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* load CategoryTreeFunctions.php on demand.
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* @param ?Parser $parser
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* @param string $category
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* @param bool $hideroot
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* @param array $attr
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* @param int $depth
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* @param bool $allowMissing
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* @return bool|string
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*/
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public function getTag( ?Parser $parser, $category, $hideroot = false, array $attr = [],
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$depth = 1, $allowMissing = false
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) {
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$disableCache = $this->config->get( 'CategoryTreeDisableCache' );
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$category = trim( $category );
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if ( $category === '' ) {
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return false;
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}
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if ( $parser ) {
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if ( $disableCache === true ) {
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$parser->getOutput()->updateCacheExpiry( 0 );
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} elseif ( is_int( $disableCache ) ) {
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$parser->getOutput()->updateCacheExpiry( $disableCache );
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}
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}
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$title = self::makeTitle( $category );
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if ( $title === null ) {
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return false;
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}
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if ( isset( $attr['class'] ) ) {
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$attr['class'] .= ' CategoryTreeTag';
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} else {
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$attr['class'] = 'CategoryTreeTag';
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}
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$attr['data-ct-mode'] = $this->optionManager->getOption( 'mode' );
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$attr['data-ct-options'] = $this->optionManager->getOptionsAsJsStructure();
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if ( !$allowMissing && !$title->getArticleID() ) {
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$html = Html::rawElement( 'span', [ 'class' => 'CategoryTreeNotice' ],
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wfMessage( 'categorytree-not-found' )
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->plaintextParams( $category )
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->parse()
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);
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} else {
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if ( !$hideroot ) {
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$html = $this->renderNode( $title, $depth );
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} else {
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$html = $this->renderChildren( $title, $depth );
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}
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}
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return Html::rawElement( 'div', $attr, $html );
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}
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/**
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* Returns a string with an HTML representation of the children of the given category.
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* @param Title $title
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* @param int $depth
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* @suppress PhanUndeclaredClassMethod,PhanUndeclaredClassInstanceof
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* @return string
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*/
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public function renderChildren( Title $title, $depth = 1 ) {
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if ( !$title->inNamespace( NS_CATEGORY ) ) {
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// Non-categories can't have children. :)
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return '';
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}
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$dbr = $this->dbProvider->getReplicaDatabase();
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$inverse = $this->optionManager->isInverse();
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$mode = $this->optionManager->getOption( 'mode' );
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$namespaces = $this->optionManager->getOption( 'namespaces' );
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$tables = [ 'page', 'categorylinks' ];
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$fields = [ 'page_id', 'page_namespace', 'page_title',
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'page_is_redirect', 'page_len', 'page_latest', 'cl_to',
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'cl_from' ];
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$where = [];
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$joins = [];
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$options = [
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'ORDER BY' => 'cl_type, cl_sortkey',
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'LIMIT' => $this->config->get( 'CategoryTreeMaxChildren' )
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];
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if ( $inverse ) {
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$joins['categorylinks'] = [ 'RIGHT JOIN', [
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'cl_to = page_title', 'page_namespace' => NS_CATEGORY
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] ];
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$where['cl_from'] = $title->getArticleID();
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} else {
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$joins['categorylinks'] = [ 'JOIN', 'cl_from = page_id' ];
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$where['cl_to'] = $title->getDBkey();
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$options['USE INDEX']['categorylinks'] = 'cl_sortkey';
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# namespace filter.
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if ( $namespaces ) {
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// NOTE: we assume that the $namespaces array contains only integers!
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// decodeNamepsaces makes it so.
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$where['page_namespace'] = $namespaces;
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} elseif ( $mode !== CategoryTreeMode::ALL ) {
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if ( $mode === CategoryTreeMode::PAGES ) {
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$where['cl_type'] = [ 'page', 'subcat' ];
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} else {
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$where['cl_type'] = 'subcat';
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}
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}
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}
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# fetch member count if possible
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$doCount = !$inverse && $this->config->get( 'CategoryTreeUseCategoryTable' );
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if ( $doCount ) {
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$tables = array_merge( $tables, [ 'category' ] );
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$fields = array_merge( $fields, [
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'cat_id', 'cat_title', 'cat_subcats', 'cat_pages', 'cat_files'
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] );
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$joins['category'] = [ 'LEFT JOIN', [
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'cat_title = page_title', 'page_namespace' => NS_CATEGORY ]
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];
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}
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$res = $dbr->select( $tables, $fields, $where, __METHOD__, $options, $joins );
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# collect categories separately from other pages
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$categories = '';
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$other = '';
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$suppressTranslations = OptionManager::decodeBoolean(
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$this->optionManager->getOption( 'notranslations' )
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) && ExtensionRegistry::getInstance()->isLoaded( 'Translate' );
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if ( $suppressTranslations ) {
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$lb = MediaWikiServices::getInstance()->getLinkBatchFactory()->newLinkBatch();
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foreach ( $res as $row ) {
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$title = Title::newFromText( $row->page_title, $row->page_namespace );
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// Page name could have slashes, check the subpage for valid language built-in codes
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if ( $title !== null && $title->getSubpageText() ) {
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$lb->addObj( $title->getBaseTitle() );
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}
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}
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$lb->execute();
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}
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foreach ( $res as $row ) {
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if ( $suppressTranslations ) {
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$title = Title::newFromRow( $row );
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$baseTitle = $title->getBaseTitle();
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$page = \TranslatablePage::isTranslationPage( $title );
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if ( ( $page instanceof \TranslatablePage ) && $baseTitle->exists() ) {
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// T229265: Render only the default pages created and ignore their
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// translations.
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continue;
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}
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}
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# NOTE: in inverse mode, the page record may be null, because we use a right join.
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# happens for categories with no category page (red cat links)
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if ( $inverse && $row->page_title === null ) {
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$t = Title::makeTitle( NS_CATEGORY, $row->cl_to );
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} else {
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# TODO: translation support; ideally added to Title object
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$t = Title::newFromRow( $row );
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}
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$cat = null;
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if ( $doCount && (int)$row->page_namespace === NS_CATEGORY ) {
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$cat = Category::newFromRow( $row, $t );
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}
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$s = $this->renderNodeInfo( $t, $cat, $depth - 1 );
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if ( (int)$row->page_namespace === NS_CATEGORY ) {
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$categories .= $s;
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} else {
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$other .= $s;
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}
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}
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return $categories . $other;
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}
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/**
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* Returns a string with an HTML representation of the parents of the given category.
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* @param Title $title
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* @return string
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*/
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public function renderParents( Title $title ) {
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$dbr = $this->dbProvider->getReplicaDatabase();
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$res = $dbr->select(
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'categorylinks',
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[ 'cl_to' ],
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[ 'cl_from' => $title->getArticleID() ],
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__METHOD__,
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[
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'LIMIT' => $this->config->get( 'CategoryTreeMaxChildren' ),
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'ORDER BY' => 'cl_to'
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]
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);
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$special = SpecialPage::getTitleFor( 'CategoryTree' );
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$s = [];
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foreach ( $res as $row ) {
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$t = Title::makeTitle( NS_CATEGORY, $row->cl_to );
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$s[] = Html::rawElement( 'span', [ 'class' => 'CategoryTreeItem' ],
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$this->linkRenderer->makeLink(
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$special,
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$t->getText(),
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[ 'class' => 'CategoryTreeLabel' ],
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[ 'target' => $t->getDBkey() ] + $this->optionManager->getOptions()
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)
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);
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}
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return implode( wfMessage( 'pipe-separator' )->escaped(), $s );
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}
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/**
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* Returns a string with a HTML represenation of the given page.
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* @param Title $title
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* @param int $children
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* @return string
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*/
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public function renderNode( Title $title, $children = 0 ) {
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if ( $this->config->get( 'CategoryTreeUseCategoryTable' )
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&& $title->inNamespace( NS_CATEGORY )
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&& !$this->optionManager->isInverse()
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) {
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$cat = Category::newFromTitle( $title );
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} else {
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$cat = null;
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}
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return $this->renderNodeInfo( $title, $cat, $children );
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}
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/**
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* Returns a string with a HTML represenation of the given page.
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* $info must be an associative array, containing at least a Title object under the 'title' key.
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* @param Title $title
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* @param Category|null $cat
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* @param int $children
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* @return string
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*/
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public function renderNodeInfo( Title $title, Category $cat = null, $children = 0 ) {
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$mode = $this->optionManager->getOption( 'mode' );
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$isInCatNS = $title->inNamespace( NS_CATEGORY );
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$key = $title->getDBkey();
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$hideprefix = $this->optionManager->getOption( 'hideprefix' );
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if ( $hideprefix === CategoryTreeHidePrefix::ALWAYS ) {
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$hideprefix = true;
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} elseif ( $hideprefix === CategoryTreeHidePrefix::AUTO ) {
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$hideprefix = ( $mode === CategoryTreeMode::CATEGORIES );
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} elseif ( $hideprefix === CategoryTreeHidePrefix::CATEGORIES ) {
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$hideprefix = $isInCatNS;
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} else {
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$hideprefix = true;
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}
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// when showing only categories, omit namespace in label unless we explicitely defined the
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// configuration setting
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// patch contributed by Manuel Schneider <manuel.schneider@wikimedia.ch>, Bug 8011
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if ( $hideprefix ) {
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$label = $title->getText();
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} else {
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$label = $title->getPrefixedText();
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}
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$link = $this->linkRenderer->makeLink( $title, $label );
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$count = false;
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$s = '';
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# NOTE: things in CategoryTree.js rely on the exact order of tags!
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# Specifically, the CategoryTreeChildren div must be the first
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# sibling with nodeName = DIV of the grandparent of the expland link.
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$s .= Html::openElement( 'div', [ 'class' => 'CategoryTreeSection' ] );
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$s .= Html::openElement( 'div', [ 'class' => 'CategoryTreeItem' ] );
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$attr = [ 'class' => 'CategoryTreeBullet' ];
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if ( $isInCatNS ) {
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if ( $cat ) {
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if ( $mode === CategoryTreeMode::CATEGORIES ) {
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$count = $cat->getSubcatCount();
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} elseif ( $mode === CategoryTreeMode::PAGES ) {
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$count = $cat->getMemberCount() - $cat->getFileCount();
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} else {
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$count = $cat->getMemberCount();
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}
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}
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if ( $count === 0 ) {
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$bullet = '';
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$attr['class'] = 'CategoryTreeEmptyBullet';
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} else {
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$linkattr = [
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// href and role will be added client-side
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'class' => 'CategoryTreeToggle',
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'data-ct-title' => $key,
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];
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if ( $children === 0 ) {
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$linkattr['aria-expanded'] = 'false';
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} else {
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$linkattr['data-ct-loaded'] = true;
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$linkattr['aria-expanded'] = 'true';
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}
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$bullet = Html::element( 'a', $linkattr ) . ' ';
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}
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} else {
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$bullet = '';
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$attr['class'] = 'CategoryTreePageBullet';
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}
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$s .= Html::rawElement( 'span', $attr, $bullet ) . ' ';
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$s .= $link;
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if ( $count !== false && $this->optionManager->getOption( 'showcount' ) ) {
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$s .= self::createCountString( RequestContext::getMain(), $cat, $count );
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}
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$s .= Html::closeElement( 'div' );
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$s .= Html::openElement(
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'div',
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[
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'class' => 'CategoryTreeChildren',
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'style' => $children === 0 ? 'display:none' : null
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]
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);
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if ( $isInCatNS && $children > 0 ) {
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$children = $this->renderChildren( $title, $children );
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if ( $children === '' ) {
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switch ( $mode ) {
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case CategoryTreeMode::CATEGORIES:
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$msg = 'categorytree-no-subcategories';
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break;
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case CategoryTreeMode::PAGES:
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$msg = 'categorytree-no-pages';
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break;
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case CategoryTreeMode::PARENTS:
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$msg = 'categorytree-no-parent-categories';
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break;
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default:
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$msg = 'categorytree-nothing-found';
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break;
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}
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$children = Html::element( 'i', [ 'class' => 'CategoryTreeNotice' ],
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wfMessage( $msg )->text()
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);
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}
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$s .= $children;
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}
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$s .= Html::closeElement( 'div' ) . Html::closeElement( 'div' );
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return $s;
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}
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/**
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* Create a string which format the page, subcat and file counts of a category
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* @param IContextSource $context
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* @param ?Category $cat
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* @param int $countMode
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* @return string
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*/
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public static function createCountString( IContextSource $context, ?Category $cat,
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$countMode
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) {
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$allCount = $cat ? $cat->getMemberCount() : 0;
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$subcatCount = $cat ? $cat->getSubcatCount() : 0;
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$fileCount = $cat ? $cat->getFileCount() : 0;
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$pages = $cat ? $cat->getPageCount( Category::COUNT_CONTENT_PAGES ) : 0;
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$attr = [
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'title' => $context->msg( 'categorytree-member-counts' )
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->numParams( $subcatCount, $pages, $fileCount, $allCount, $countMode )->text(),
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# numbers and commas get messed up in a mixed dir env
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'dir' => $context->getLanguage()->getDir()
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];
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$contLang = MediaWikiServices::getInstance()->getContentLanguage();
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$s = $contLang->getDirMark() . ' ';
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# Create a list of category members with only non-zero member counts
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$memberNums = [];
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if ( $subcatCount ) {
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$memberNums[] = $context->msg( 'categorytree-num-categories' )
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->numParams( $subcatCount )->text();
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}
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if ( $pages ) {
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$memberNums[] = $context->msg( 'categorytree-num-pages' )->numParams( $pages )->text();
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}
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if ( $fileCount ) {
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$memberNums[] = $context->msg( 'categorytree-num-files' )
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->numParams( $fileCount )->text();
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}
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$memberNumsShort = $memberNums
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? $context->getLanguage()->commaList( $memberNums )
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: $context->msg( 'categorytree-num-empty' )->text();
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# Only $5 is actually used in the default message.
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# Other arguments can be used in a customized message.
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$s .= Html::rawElement(
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'span',
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$attr,
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$context->msg( 'categorytree-member-num' )
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// Do not use numParams on params 1-4, as they are only used for customisation.
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->params( $subcatCount, $pages, $fileCount, $allCount, $memberNumsShort )
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->escaped()
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);
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return $s;
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}
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/**
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* Creates a Title object from a user provided (and thus unsafe) string
|
|
* @param string $title
|
|
* @return null|Title
|
|
*/
|
|
public static function makeTitle( $title ) {
|
|
$title = trim( strval( $title ) );
|
|
|
|
if ( $title === '' ) {
|
|
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->inNamespace( NS_CATEGORY ) || $t->isExternal() ) {
|
|
// If we were given something like "Wikipedia:Foo" or "Template:",
|
|
// try it again but forced.
|
|
$title = "Category:$title";
|
|
$t = Title::newFromText( $title );
|
|
}
|
|
return $t;
|
|
}
|
|
}
|