ResourceLoaderLessModule.php

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<?php
namespace Vector;
 
use CSSMin;
use MediaWiki\MediaWikiServices;
use ConfigException;
use ResourceLoaderContext;
use ResourceLoaderFileModule;
 
class ResourceLoaderLessModule extends ResourceLoaderFileModule {
    protected function getLessVars( ResourceLoaderContext $context ) {
        $lessVars = parent::getLessVars( $context );
        try {
            $config = MediaWikiServices::getInstance()->getConfigFactory()->makeConfig( 'vector' );
            $printLogo = $config->get( 'VectorPrintLogo' );
        } catch ( ConfigException $e ) {
            // Config is not available when running in the context of the MediaWiki installer. (T183640)
            $printLogo = false;
        }
        if ( $printLogo ) {
            $lessVars[ 'printLogo' ] = true;
            $lessVars[ 'printLogoUrl' ] = CSSMin::buildUrlValue( $printLogo['url'] );
            $lessVars[ 'printLogoWidth' ] = intval( $printLogo['width'] );
            $lessVars[ 'printLogoHeight' ] = intval( $printLogo['height'] );
        } else {
            $lessVars[ 'printLogo' ] = false;
        }
        return $lessVars;
    }
}