mirror of
https://gerrit.wikimedia.org/r/mediawiki/extensions/DiscussionTools
synced 2024-09-23 10:29:11 +00:00
781a33357b
MediaWiki's PHPCS plugin requires documentation comments on all properties, unless those properties are typed. This has potential to introduce bugs – in particular, because typed properties without a default value will throw an exception if their value is accessed before it's defined, while previously they defaulted to null. I fixed this when I found it (making them nullable and null by default), but I may have missed some cases. Change-Id: If5b1f4d542ce3e1b69327ee4283f7c3e133a62a0
62 lines
1.5 KiB
PHP
62 lines
1.5 KiB
PHP
<?php
|
|
|
|
namespace MediaWiki\Extension\DiscussionTools;
|
|
|
|
use DOMException;
|
|
use Wikimedia\Parsoid\DOM\Node;
|
|
|
|
/**
|
|
* Partial implementation of W3 DOM4 NodeFilter interface.
|
|
*
|
|
* See also:
|
|
* - https://dom.spec.whatwg.org/#interface-nodefilter
|
|
*
|
|
* Adapted from https://github.com/Krinkle/dom-TreeWalker-polyfill/blob/master/src/TreeWalker-polyfill.js
|
|
*/
|
|
class NodeFilter {
|
|
|
|
// Constants for acceptNode()
|
|
public const FILTER_ACCEPT = 1;
|
|
public const FILTER_REJECT = 2;
|
|
public const FILTER_SKIP = 3;
|
|
|
|
// Constants for whatToShow
|
|
public const SHOW_ALL = 0xFFFFFFFF;
|
|
public const SHOW_ELEMENT = 0x1;
|
|
public const SHOW_ATTRIBUTE = 0x2;
|
|
public const SHOW_TEXT = 0x4;
|
|
public const SHOW_CDATA_SECTION = 0x8;
|
|
public const SHOW_ENTITY_REFERENCE = 0x10;
|
|
public const SHOW_ENTITY = 0x20;
|
|
public const SHOW_PROCESSING_INSTRUCTION = 0x40;
|
|
public const SHOW_COMMENT = 0x80;
|
|
public const SHOW_DOCUMENT = 0x100;
|
|
public const SHOW_DOCUMENT_TYPE = 0x200;
|
|
public const SHOW_DOCUMENT_FRAGMENT = 0x400;
|
|
public const SHOW_NOTATION = 0x800;
|
|
|
|
/** @var callable */
|
|
public $filter;
|
|
|
|
private bool $active = false;
|
|
|
|
/**
|
|
* See https://dom.spec.whatwg.org/#dom-nodefilter-acceptnode
|
|
*
|
|
* @param Node $node
|
|
* @return int Constant NodeFilter::FILTER_ACCEPT,
|
|
* NodeFilter::FILTER_REJECT or NodeFilter::FILTER_SKIP.
|
|
*/
|
|
public function acceptNode( $node ) {
|
|
if ( $this->active ) {
|
|
throw new DOMException( 'INVALID_STATE_ERR' );
|
|
}
|
|
|
|
$this->active = true;
|
|
$result = call_user_func( $this->filter, $node );
|
|
$this->active = false;
|
|
|
|
return $result;
|
|
}
|
|
}
|