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<?php /** * Base content handler class for flat text contents. * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation; either version 2 of the License, or * (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License along * with this program; if not, write to the Free Software Foundation, Inc., * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. * http://www.gnu.org/copyleft/gpl.html * * @since 1.36 (As UnknownContentHandler in 1.34) * * @file * @ingroup Content */ namespace MediaWiki\Content; use MediaWiki\Content\Renderer\ContentParseParams; use MediaWiki\Context\IContextSource; use MediaWiki\Html\Html; use MediaWiki\Parser\ParserOutput; use SlotDiffRenderer; use UnsupportedSlotDiffRenderer; /** * Content handler implementation for unknown content. * * This can be used to handle content for which no ContentHandler exists on the system, * perhaps because the extension that provided it has been removed. * * @ingroup Content */ class FallbackContentHandler extends ContentHandler { /** * Constructs an FallbackContentHandler. Since FallbackContentHandler can be registered * for multiple model IDs on a system, multiple instances of FallbackContentHandler may * coexist. * * To preserve the serialization format of the original content model, it must be supplied * to the constructor via the $formats parameter. If not given, the default format is * reported as 'application/octet-stream'. * * @param string $modelId * @param string[]|null $formats */ public function __construct( $modelId, $formats = null ) { parent::__construct( $modelId, $formats ?? [ 'application/octet-stream', 'application/unknown', 'application/x-binary', 'text/unknown', 'unknown/unknown', ] ); } /** * Returns the content's data as-is. * * @param Content $content * @param string|null $format The serialization format to check * * @return mixed */ public function serializeContent( Content $content, $format = null ) { /** @var FallbackContent $content */ '@phan-var FallbackContent $content'; return $content->getData(); } /** * Constructs an FallbackContent instance wrapping the given data. * * @since 1.21 * * @param string $blob serialized content in an unknown format * @param string|null $format ignored * * @return Content The FallbackContent object wrapping $data */ public function unserializeContent( $blob, $format = null ) { return new FallbackContent( $blob, $this->getModelID() ); } /** * Creates an empty FallbackContent object. * * @since 1.21 * * @return Content A new FallbackContent object with empty text. */ public function makeEmptyContent() { return $this->unserializeContent( '' ); } /** * @return false */ public function supportsDirectEditing() { return false; } /** * Fills the ParserOutput with an error message. * @since 1.38 * @param Content $content * @param ContentParseParams $cpoParams * @param ParserOutput &$output The output object to fill (reference). * */ protected function fillParserOutput( Content $content, ContentParseParams $cpoParams, ParserOutput &$output ) { '@phan-var FallbackContent $content'; $msg = wfMessage( 'unsupported-content-model', [ $content->getModel() ] ); $html = Html::rawElement( 'div', [ 'class' => 'error' ], $msg->inContentLanguage()->parse() ); $output->setRawText( $html ); } /** * @param IContextSource $context * * @return SlotDiffRenderer */ protected function getSlotDiffRendererInternal( IContextSource $context ) { return new UnsupportedSlotDiffRenderer( $context ); } } /** @deprecated class alias since 1.43 */ class_alias( FallbackContentHandler::class, 'FallbackContentHandler' );
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