db987c700a
These new classes provide a mechanism for defining the behavior of slots, like the content models it supports. This acts as an extension point for extensions that need to define custom slots, like the MediaInfo extension for the SDC project. Bug: T194046 Change-Id: Ia20c98eee819293199e541be75b5521f6413bc2f
132 lines
3.8 KiB
PHP
132 lines
3.8 KiB
PHP
<?php
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/**
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* This file is part of MediaWiki.
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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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*/
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namespace MediaWiki\Revision;
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use ContentHandler;
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use Hooks;
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use MediaWiki\Linker\LinkTarget;
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use Title;
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/**
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* A SlotRoleHandler for the main slot. While most slot roles serve a specific purpose and
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* thus typically exhibit the same behaviour on all pages, the main slot is used for different
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* things in different pages, typically depending on the namespace, a "file extension" in
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* the page name, or the content model of the slot's content.
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*
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* MainSlotRoleHandler implements some of the per-namespace and per-model behavior that was
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* supported prior to MediaWiki Version 1.33.
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*
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* @since 1.33
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*/
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class MainSlotRoleHandler extends SlotRoleHandler {
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/**
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* @var string[] A mapping of namespaces to content models.
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* @see $wgNamespaceContentModels
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*/
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private $namespaceContentModels;
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/**
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* @param string[] $namespaceContentModels A mapping of namespaces to content models,
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* typically from $wgNamespaceContentModels.
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*/
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public function __construct( array $namespaceContentModels ) {
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parent::__construct( 'main', CONTENT_MODEL_WIKITEXT );
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$this->namespaceContentModels = $namespaceContentModels;
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}
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public function supportsArticleCount() {
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return true;
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}
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/**
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* @param string $model
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* @param LinkTarget $page
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*
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* @return bool
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*/
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public function isAllowedModel( $model, LinkTarget $page ) {
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$title = Title::newFromLinkTarget( $page );
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$handler = ContentHandler::getForModelID( $model );
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return $handler->canBeUsedOn( $title );
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}
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/**
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* @param LinkTarget $page
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*
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* @return string
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*/
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public function getDefaultModel( LinkTarget $page ) {
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// NOTE: this method must not rely on $title->getContentModel() directly or indirectly,
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// because it is used to initialize the mContentModel member.
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$ext = '';
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$ns = $page->getNamespace();
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$model = $this->namespaceContentModels[$ns] ?? null;
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// Hook can determine default model
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$title = Title::newFromLinkTarget( $page );
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if ( !Hooks::run( 'ContentHandlerDefaultModelFor', [ $title, &$model ] ) ) {
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if ( !is_null( $model ) ) {
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return $model;
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}
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}
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// Could this page contain code based on the title?
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$isCodePage = $ns === NS_MEDIAWIKI && preg_match( '!\.(css|js|json)$!u', $title->getText(), $m );
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if ( $isCodePage ) {
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$ext = $m[1];
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}
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// Is this a user subpage containing code?
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$isCodeSubpage = $ns === NS_USER
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&& !$isCodePage
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&& preg_match( "/\\/.*\\.(js|css|json)$/", $title->getText(), $m );
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if ( $isCodeSubpage ) {
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$ext = $m[1];
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}
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// Is this wikitext, according to $wgNamespaceContentModels or the DefaultModelFor hook?
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$isWikitext = is_null( $model ) || $model == CONTENT_MODEL_WIKITEXT;
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$isWikitext = $isWikitext && !$isCodePage && !$isCodeSubpage;
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if ( !$isWikitext ) {
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switch ( $ext ) {
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case 'js':
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return CONTENT_MODEL_JAVASCRIPT;
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case 'css':
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return CONTENT_MODEL_CSS;
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case 'json':
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return CONTENT_MODEL_JSON;
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default:
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return is_null( $model ) ? CONTENT_MODEL_TEXT : $model;
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}
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}
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// We established that it must be wikitext
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return CONTENT_MODEL_WIKITEXT;
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}
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}
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