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<?php
namespace MediaWiki\Html;
use Wikimedia\Assert\Assert;
use Wikimedia\RemexHtml\Serializer\HtmlFormatter;
use Wikimedia\RemexHtml\Serializer\SerializerNode;
/**
* Internal helper trait for HtmlHelper::modifyHtml.
*
* This is designed to extend a HtmlFormatter.
*
* @phan-file-suppress PhanTraitParentReference
*/
trait HtmlHelperTrait {
/** @var callable */
private $shouldModifyCallback;
/** @var callable */
private $modifyCallback;
public function __construct( $options, callable $shouldModifyCallback, callable $modifyCallback ) {
parent::__construct( $options );
$this->shouldModifyCallback = $shouldModifyCallback;
$this->modifyCallback = $modifyCallback;
// Escape U+0338 (T387130)
'@phan-var HtmlFormatter $this';
$this->textEscapes["\u{0338}"] = '̸';
}
public function element( SerializerNode $parent, SerializerNode $node, $contents ) {
if ( ( $this->shouldModifyCallback )( $node ) ) {
$node = clone $node;
$node->attrs = clone $node->attrs;
$newNode = ( $this->modifyCallback )( $node );
Assert::parameterType( SerializerNode::class, $newNode, 'return value' );
return parent::element( $parent, $newNode, $contents );
} else {
return parent::element( $parent, $node, $contents );
}
}
public function startDocument( $fragmentNamespace, $fragmentName ) {
return '';
}
}
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