TextConflictHelper.php

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<?php
namespace MediaWiki\EditPage;

use Content;
use ContentHandler;
use Html;
use IBufferingStatsdDataFactory;
use OutputPage;
use Title;

class TextConflictHelper {

    protected $title;

    public $contentModel = null;

    public $contentFormat = null;

    protected $out;

    protected $stats;

    protected $submitLabel;

    protected $yourtext = '';

    protected $storedversion = '';

    public function __construct( Title $title, OutputPage $out, IBufferingStatsdDataFactory $stats,
        $submitLabel
    ) {
        $this->title = $title;
        $this->out = $out;
        $this->stats = $stats;
        $this->submitLabel = $submitLabel;
        $this->contentModel = $title->getContentModel();
        $this->contentFormat = ContentHandler::getForModelID( $this->contentModel )->getDefaultFormat();
    }

    public function setTextboxes( $yourtext, $storedversion ) {
        $this->yourtext = $yourtext;
        $this->storedversion = $storedversion;
    }

    public function setContentModel( $contentModel ) {
        $this->contentModel = $contentModel;
    }

    public function setContentFormat( $contentFormat ) {
        $this->contentFormat = $contentFormat;
    }

    public function incrementConflictStats() {
        $this->stats->increment( 'edit.failures.conflict' );
        // Only include 'standard' namespaces to avoid creating unknown numbers of statsd metrics
        if (
            $this->title->getNamespace() >= NS_MAIN &&
            $this->title->getNamespace() <= NS_CATEGORY_TALK
        ) {
            $this->stats->increment(
                'edit.failures.conflict.byNamespaceId.' . $this->title->getNamespace()
            );
        }
    }

    public function incrementResolvedStats() {
        $this->stats->increment( 'edit.failures.conflict.resolved' );
        // Only include 'standard' namespaces to avoid creating unknown numbers of statsd metrics
        if (
            $this->title->getNamespace() >= NS_MAIN &&
            $this->title->getNamespace() <= NS_CATEGORY_TALK
        ) {
            $this->stats->increment(
                'edit.failures.conflict.resolved.byNamespaceId.' . $this->title->getNamespace()
            );
        }
    }

    public function getExplainHeader() {
        return Html::rawElement(
            'div',
            [ 'class' => 'mw-explainconflict' ],
            $this->out->msg( 'explainconflict', $this->out->msg( $this->submitLabel )->text() )->parse()
        );
    }

    public function getEditConflictMainTextBox( array $customAttribs = [] ) {
        $builder = new TextboxBuilder();
        $classes = $builder->getTextboxProtectionCSSClasses( $this->title );

        $attribs = [ 'tabindex' => 1 ];
        $attribs += $customAttribs;

        $attribs = $builder->mergeClassesIntoAttributes( $classes, $attribs );

        $attribs = $builder->buildTextboxAttribs(
            'wpTextbox1',
            $attribs,
            $this->out->getUser(),
            $this->title
        );

        $this->out->addHTML(
            Html::textarea( 'wpTextbox1', $builder->addNewLineAtEnd( $this->storedversion ), $attribs )
        );
    }

    public function getEditFormHtmlBeforeContent() {
        return '';
    }

    public function getEditFormHtmlAfterContent() {
        return '';
    }

    public function showEditFormTextAfterFooters() {
        $this->out->wrapWikiMsg( '<h2>$1</h2>', "yourdiff" );

        $yourContent = $this->toEditContent( $this->yourtext );
        $storedContent = $this->toEditContent( $this->storedversion );
        $handler = ContentHandler::getForModelID( $this->contentModel );
        $diffEngine = $handler->createDifferenceEngine( $this->out );

        $diffEngine->setContent( $yourContent, $storedContent );
        $diffEngine->showDiff(
            $this->out->msg( 'yourtext' )->parse(),
            $this->out->msg( 'storedversion' )->text()
        );

        $this->out->wrapWikiMsg( '<h2>$1</h2>', "yourtext" );

        $builder = new TextboxBuilder();
        $attribs = $builder->buildTextboxAttribs(
            'wpTextbox2',
            [ 'tabindex' => 6, 'readonly' ],
            $this->out->getUser(),
            $this->title
        );

        $this->out->addHTML(
            Html::textarea( 'wpTextbox2', $builder->addNewLineAtEnd( $this->yourtext ), $attribs )
        );
    }

    private function toEditContent( $text ) {
        return ContentHandler::makeContent(
            $text,
            $this->title,
            $this->contentModel,
            $this->contentFormat
        );
    }
}