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