UnknownContent.php

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<?php
class UnknownContent extends AbstractContent {
 
    private $data;
 
    public function __construct( $data, $model_id ) {
        parent::__construct( $model_id );
 
        $this->data = $data;
    }
 
    public function copy() {
        // UnknownContent is immutable, so no need to copy.
        return $this;
    }
 
    public function getTextForSummary( $maxlength = 250 ) {
        return '';
    }
 
    public function getSize() {
        return strlen( $this->data );
    }
 
    public function isCountable( $hasLinks = null ) {
        return false;
    }
 
    public function getNativeData() {
        return $this->getData();
    }
 
    public function getData() {
        return $this->data;
    }
 
    public function getTextForSearchIndex() {
        return '';
    }
 
    public function getWikitextForTransclusion() {
        return false;
    }
 
    protected function fillParserOutput( Title $title, $revId,
        ParserOptions $options, $generateHtml, ParserOutput &$output
    ) {
        $msg = wfMessage( 'unsupported-content-model', [ $this->getModel() ] );
        $html = Html::rawElement( 'div', [ 'class' => 'error' ], $msg->inContentLanguage()->parse() );
        $output->setText( $html );
    }
 
    public function convert( $toModel, $lossy = '' ) {
        return false;
    }
 
    protected function equalsInternal( Content $that ) {
        if ( !$that instanceof UnknownContent ) {
            return false;
        }
 
        return $this->getData() == $that->getData();
    }
 
}