UnsupportedSlotDiffRenderer.php
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UnsupportedSlotDiffRenderer.php
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	<?php
	/**
	* Renders a slot diff by doing a text diff on the native representation.
	*
	* @license GPL-2.0-or-later
	* @file
	* @ingroup DifferenceEngine
	*/

	use MediaWiki\Content\Content;
	use MediaWiki\Html\Html;

	/**
	* Produces a warning message about not being able to render a slot diff.
	*
	* @since 1.34
	*
	* @ingroup DifferenceEngine
	*/
	class UnsupportedSlotDiffRenderer extends SlotDiffRenderer {

	/**
	* @var MessageLocalizer
	*/
	private $localizer;

	public function __construct( MessageLocalizer $localizer ) {
	$this->localizer = $localizer;
	}

	/** @inheritDoc */
	public function getDiff( ?Content $oldContent = null, ?Content $newContent = null ) {
	$this->normalizeContents( $oldContent, $newContent );

	$oldModel = $oldContent->getModel();
	$newModel = $newContent->getModel();

	if ( $oldModel !== $newModel ) {
	$msg = $this->localizer->msg( 'unsupported-content-diff2', $oldModel, $newModel );
	} else {
	$msg = $this->localizer->msg( 'unsupported-content-diff', $oldModel );
	}

	return Html::rawElement(
	'tr',
	[],
	Html::rawElement(
	'td',
	[ 'colspan' => 4, 'class' => 'error' ],
	$msg->parse()
	)
	);
	}

	}