mediawiki-extensions-Discus.../includes/ThreadItem.php

170 lines
4.5 KiB
PHP

<?php
namespace MediaWiki\Extension\DiscussionTools;
/**
* A thread item, either a heading or a comment
*/
abstract class ThreadItem {
protected $type;
protected $range;
protected $level;
protected $id = null;
protected $replies = [];
/**
* @param string $type `heading` or `comment`
* @param int $level Item level in the thread tree
* @param ImmutableRange $range Object describing the extent of the comment, including the
* signature and timestamp.
*/
public function __construct(
string $type, int $level, ImmutableRange $range
) {
$this->type = $type;
$this->level = $level;
$this->range = $range;
}
/**
* Get the list of authors in the comment tree below this thread item.
*
* Usually called on a HeadingItem to find all authors in a thread.
*
* @return string[] Author usernames
*/
public function getAuthorsBelow() : array {
$authors = [];
$getAuthorSet = function ( CommentItem $comment ) use ( &$authors, &$getAuthorSet ) {
$author = $comment->getAuthor();
if ( $author ) {
$authors[ $author ] = true;
}
// Get the set of authors in the same format from each reply
array_map( $getAuthorSet, $comment->getReplies() );
};
array_map( $getAuthorSet, $this->getReplies() );
ksort( $authors );
return array_keys( $authors );
}
/**
* Get the name of the page from which this thread item is transcluded (if any).
*
* @return string|bool `false` if this item is not transcluded. A string if it's transcluded
* from a single page (the page title, in text form with spaces). `true` if it's transcluded, but
* we can't determine the source.
*/
public function getTranscludedFrom() {
// If some template is used within the comment (e.g. {{ping|…}} or {{tl|…}}, or a
// non-substituted signature template), that *does not* mean the comment is transcluded.
// We only want to consider comments to be transcluded if all wrapper elements (usually
// <li> or <p>) are marked as part of a single transclusion.
// If we can't find "exact" wrappers, using only the end container works out well
// (because the main purpose of this method is to decide on which page we should post
// replies to the given comment, and they'll go after the comment).
$coveredNodes = CommentUtils::getFullyCoveredSiblings( $this ) ?:
[ $this->getRange()->endContainer ];
$node = CommentUtils::getTranscludedFromElement( $coveredNodes[ 0 ] );
$length = count( $coveredNodes );
for ( $i = 1; $i < $length; $i++ ) {
if ( $node !== CommentUtils::getTranscludedFromElement( $coveredNodes[ $i ] ) ) {
// Comment is only partially transcluded, that should be fine
return false;
}
}
if ( !$node ) {
// No mw:Transclusion node found, this item is not transcluded
return false;
}
$dataMw = json_decode( $node->getAttribute( 'data-mw' ), true );
// Only return a page name if this is a simple single-template transclusion.
if (
is_array( $dataMw ) &&
$dataMw['parts'] &&
count( $dataMw['parts'] ) === 1 &&
$dataMw['parts'][0]['template'] &&
$dataMw['parts'][0]['template']['target']['href']
) {
$title = CommentUtils::getTitleFromUrl( $dataMw['parts'][0]['template']['target']['href'] );
return $title->getPrefixedText();
}
// Multi-template transclusion, or a parser function call, or template-affected wikitext outside
// of a template call, or a mix of the above
return true;
}
/**
* @return string Thread item type
*/
public function getType() : string {
return $this->type;
}
/**
* @return int Thread item level
*/
public function getLevel() : int {
return $this->level;
}
/**
* @return ImmutableRange Thread item range
*/
public function getRange() : ImmutableRange {
return $this->range;
}
/**
* @return string|null Thread ID
*/
public function getId() : ?string {
return $this->id;
}
/**
* @return CommentItem[] Replies to this thread item
*/
public function getReplies() : array {
return $this->replies;
}
/**
* @param int $level Thread item level
*/
public function setLevel( int $level ) : void {
$this->level = $level;
}
/**
* @param ImmutableRange $range Thread item range
*/
public function setRange( ImmutableRange $range ) : void {
$this->range = $range;
}
/**
* @param string|null $id Thread ID
*/
public function setId( ?string $id ) : void {
$this->id = $id;
}
/**
* @param CommentItem $reply Reply comment
*/
public function addReply( CommentItem $reply ) : void {
$this->replies[] = $reply;
}
}