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

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<?php
namespace MediaWiki\Extension\DiscussionTools;
use DOMElement;
use HtmlFormatter\HtmlFormatter;
class CommentFormatter extends HtmlFormatter {
public function addReplyLinks() {
// The output of this method can end up in the HTTP cache (Varnish). Avoid changing it;
// and when doing so, ensure that frontend code can handle both the old and new outputs.
// See controller#init in JS.
$doc = $this->getDoc();
$container = $doc->documentElement->firstChild;
if ( !( $container instanceof DOMElement ) ) {
return;
}
$parser = CommentParser::newFromGlobalState( $container );
$threadItems = $parser->getThreadItems();
foreach ( $threadItems as $threadItem ) {
// TODO: Consider not attaching JSON data to the DOM.
// Create a dummy node to attach data to.
if ( $threadItem instanceof HeadingItem && $threadItem->isPlaceholderHeading() ) {
$node = $doc->createElement( 'span' );
$container->firstChild->insertBefore( $node, $container->firstChild->firstChild );
$threadItem->setRange( new ImmutableRange( $node, 0, $node, 0 ) );
}
if ( $threadItem instanceof CommentItem ) {
$id = $threadItem->getId();
$range = $threadItem->getRange();
$startMarker = $doc->createElement( 'span' );
$startMarker->setAttribute( 'data-mw-comment-start', $id );
$endMarker = $doc->createElement( 'span' );
$endMarker->setAttribute( 'data-mw-comment-end', $id );
$range->setStart( $range->endContainer, $range->endOffset )->insertNode( $endMarker );
$range->insertNode( $startMarker );
}
$itemData = $threadItem->jsonSerialize();
$itemJSON = json_encode( $itemData );
if ( $threadItem instanceof HeadingItem ) {
$threadItem->getRange()->endContainer->setAttribute( 'data-mw-comment', $itemJSON );
} elseif ( $threadItem instanceof CommentItem ) {
$replyLinkButtons = $doc->createElement( 'span' );
$replyLinkButtons->setAttribute( 'class', 'dt-init-replylink-buttons' );
// Reply
$replyLink = $doc->createElement( 'a' );
$replyLink->setAttribute( 'class', 'dt-init-replylink-reply' );
$replyLink->setAttribute( 'role', 'button' );
$replyLink->setAttribute( 'tabindex', '0' );
$replyLink->setAttribute( 'data-mw-comment', $itemJSON );
$replyLink->nodeValue = wfMessage( 'discussiontools-replylink' );
$bracket = $doc->createElement( 'span' );
$bracket->setAttribute( 'class', 'dt-init-replylink-bracket' );
$bracketLeft = $bracket->cloneNode( false );
$bracketLeft->nodeValue = '[';
$bracketRight = $bracket->cloneNode( false );
$bracketRight->nodeValue = ']';
$replyLinkButtons->appendChild( $bracketLeft );
$replyLinkButtons->appendChild( $replyLink );
$replyLinkButtons->appendChild( $bracketRight );
CommentModifier::addReplyLink( $threadItem, $replyLinkButtons );
}
}
}
}