TextContent.php

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<?php
class TextContent extends AbstractContent {

    public function __construct( $text, $model_id = CONTENT_MODEL_TEXT ) {
        parent::__construct( $model_id );

        if ( $text === null || $text === false ) {
            wfWarn( "TextContent constructed with \$text = " . var_export( $text, true ) . "! "
                . "This may indicate an error in the caller's scope.", 2 );

            $text = '';
        }

        if ( !is_string( $text ) ) {
            throw new MWException( "TextContent expects a string in the constructor." );
        }

        $this->mText = $text;
    }

    public function copy() {
        return $this; # NOTE: this is ok since TextContent are immutable.
    }

    public function getTextForSummary( $maxlength = 250 ) {
        global $wgContLang;

        $text = $this->getNativeData();

        $truncatedtext = $wgContLang->truncate(
            preg_replace( "/[\n\r]/", ' ', $text ),
            max( 0, $maxlength ) );

        return $truncatedtext;
    }

    public function getSize() {
        $text = $this->getNativeData();

        return strlen( $text );
    }

    public function isCountable( $hasLinks = null ) {
        global $wgArticleCountMethod;

        if ( $this->isRedirect() ) {
            return false;
        }

        if ( $wgArticleCountMethod === 'any' ) {
            return true;
        }

        return false;
    }

    public function getNativeData() {
        return $this->mText;
    }

    public function getTextForSearchIndex() {
        return $this->getNativeData();
    }

    public function getWikitextForTransclusion() {
        $wikitext = $this->convert( CONTENT_MODEL_WIKITEXT, 'lossy' );

        if ( $wikitext ) {
            return $wikitext->getNativeData();
        } else {
            return false;
        }
    }

    public function preSaveTransform( Title $title, User $user, ParserOptions $popts ) {
        $text = $this->getNativeData();
        $pst = rtrim( $text );

        return ( $text === $pst ) ? $this : new static( $pst, $this->getModel() );
    }

    public function diff( Content $that, Language $lang = null ) {
        global $wgContLang;

        $this->checkModelID( $that->getModel() );

        // @todo could implement this in DifferenceEngine and just delegate here?

        if ( !$lang ) {
            $lang = $wgContLang;
        }

        $otext = $this->getNativeData();
        $ntext = $that->getNativeData();

        # Note: Use native PHP diff, external engines don't give us abstract output
        $ota = explode( "\n", $lang->segmentForDiff( $otext ) );
        $nta = explode( "\n", $lang->segmentForDiff( $ntext ) );

        $diff = new Diff( $ota, $nta );

        return $diff;
    }

    protected function fillParserOutput( Title $title, $revId,
        ParserOptions $options, $generateHtml, ParserOutput &$output
    ) {
        global $wgParser, $wgTextModelsToParse;

        if ( in_array( $this->getModel(), $wgTextModelsToParse ) ) {
            // parse just to get links etc into the database, HTML is replaced below.
            $output = $wgParser->parse( $this->getNativeData(), $title, $options, true, true, $revId );
        }

        if ( $generateHtml ) {
            $html = $this->getHtml();
        } else {
            $html = '';
        }

        $output->setText( $html );
    }

    protected function getHtml() {
        return $this->getHighlightHtml();
    }

    protected function getHighlightHtml() {
        return htmlspecialchars( $this->getNativeData() );
    }

    public function convert( $toModel, $lossy = '' ) {
        $converted = parent::convert( $toModel, $lossy );

        if ( $converted !== false ) {
            return $converted;
        }

        $toHandler = ContentHandler::getForModelID( $toModel );

        if ( $toHandler instanceof TextContentHandler ) {
            // NOTE: ignore content serialization format - it's just text anyway.
            $text = $this->getNativeData();
            $converted = $toHandler->unserializeContent( $text );
        }

        return $converted;
    }

}