80 lines
2.8 KiB
PHP
80 lines
2.8 KiB
PHP
<?php
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/**
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* Adapter for turning a DifferenceEngine into a SlotDiffRenderer.
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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 DifferenceEngine
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*/
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use MediaWiki\MediaWikiServices;
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/**
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* B/C adapter for turning a DifferenceEngine into a SlotDiffRenderer.
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* Before SlotDiffRenderer was introduced, getDiff() functionality was provided by DifferenceEngine
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* subclasses. Convert such a subclass into a SlotDiffRenderer.
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* @deprecated
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* @ingroup DifferenceEngine
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*/
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class DifferenceEngineSlotDiffRenderer extends SlotDiffRenderer {
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/** @var DifferenceEngine */
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private $differenceEngine;
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/**
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* @param DifferenceEngine $differenceEngine
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*/
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public function __construct( DifferenceEngine $differenceEngine ) {
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$this->differenceEngine = clone $differenceEngine;
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// Set state to loaded. This should not matter to any of the methods invoked by
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// the adapter, but just in case a load does get triggered somehow, make sure it's a no-op.
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$fakeContent = MediaWikiServices::getInstance()
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->getContentHandlerFactory()
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->getContentHandler( CONTENT_MODEL_WIKITEXT )
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->makeEmptyContent();
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$this->differenceEngine->setContent( $fakeContent, $fakeContent );
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$this->differenceEngine->markAsSlotDiffRenderer();
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}
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/** @inheritDoc */
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public function getDiff( Content $oldContent = null, Content $newContent = null ) {
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$this->normalizeContents( $oldContent, $newContent );
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return $this->differenceEngine->generateContentDiffBody( $oldContent, $newContent );
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}
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/** @inheritDoc */
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public function addModules( OutputPage $output ) {
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$oldContext = null;
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if ( $output !== $this->differenceEngine->getOutput() ) {
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$oldContext = $this->differenceEngine->getContext();
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$newContext = new DerivativeContext( $oldContext );
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$newContext->setOutput( $output );
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$this->differenceEngine->setContext( $newContext );
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}
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$this->differenceEngine->showDiffStyle();
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if ( $oldContext ) {
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$this->differenceEngine->setContext( $oldContext );
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}
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}
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/** @inheritDoc */
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public function getExtraCacheKeys() {
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return $this->differenceEngine->getExtraCacheKeys();
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}
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}
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