mirror of
https://gerrit.wikimedia.org/r/mediawiki/extensions/DiscussionTools
synced 2024-09-23 10:29:11 +00:00
af68c835bb
Change code to match the documented consensus formed on T321683: https://www.mediawiki.org/wiki/Manual:Coding_conventions/PHP#Exception_handling * Do not directly throw Exception, Error or MWException * Document checked exceptions with @throws * Do not document unchecked exceptions For this extension, I think it makes sense to consider DOMException an unchecked exception too (in addition to the usual LogicException and RuntimeException). Depends-On: Id07e301c3f20afa135e5469ee234a27354485652 Depends-On: I869af06896b9757af18488b916211c5a41a8c563 Depends-On: I42d9b7465d1406a22ef1b3f6d8de426c60c90e2c Change-Id: Ic9d9efd031a87fa5a93143f714f0adb20f0dd956
61 lines
1.5 KiB
PHP
61 lines
1.5 KiB
PHP
<?php
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namespace MediaWiki\Extension\DiscussionTools;
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use DOMException;
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use Wikimedia\Parsoid\DOM\Node;
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/**
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* Partial implementation of W3 DOM4 NodeFilter interface.
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*
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* See also:
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* - https://dom.spec.whatwg.org/#interface-nodefilter
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*
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* Adapted from https://github.com/Krinkle/dom-TreeWalker-polyfill/blob/master/src/TreeWalker-polyfill.js
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*/
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class NodeFilter {
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// Constants for acceptNode()
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public const FILTER_ACCEPT = 1;
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public const FILTER_REJECT = 2;
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public const FILTER_SKIP = 3;
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// Constants for whatToShow
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public const SHOW_ALL = 0xFFFFFFFF;
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public const SHOW_ELEMENT = 0x1;
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public const SHOW_ATTRIBUTE = 0x2;
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public const SHOW_TEXT = 0x4;
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public const SHOW_CDATA_SECTION = 0x8;
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public const SHOW_ENTITY_REFERENCE = 0x10;
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public const SHOW_ENTITY = 0x20;
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public const SHOW_PROCESSING_INSTRUCTION = 0x40;
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public const SHOW_COMMENT = 0x80;
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public const SHOW_DOCUMENT = 0x100;
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public const SHOW_DOCUMENT_TYPE = 0x200;
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public const SHOW_DOCUMENT_FRAGMENT = 0x400;
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public const SHOW_NOTATION = 0x800;
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public $filter;
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private $active = false;
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/**
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* See https://dom.spec.whatwg.org/#dom-nodefilter-acceptnode
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*
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* @param Node $node
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* @return int Constant NodeFilter::FILTER_ACCEPT,
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* NodeFilter::FILTER_REJECT or NodeFilter::FILTER_SKIP.
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*/
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public function acceptNode( $node ) {
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if ( $this->active ) {
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throw new DOMException( 'INVALID_STATE_ERR' );
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}
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$this->active = true;
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$result = call_user_func( $this->filter, $node );
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$this->active = false;
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return $result;
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}
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}
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