mr-legend_wiki/inc/Menu/Item/MediaManager.php

<?php

namespace dokuwiki\Menu\Item;

/**
 * Class MediaManager
 *
 * Opens the current image in the media manager. Used on image detail view.
 */
class MediaManager extends AbstractItem
{
    /** @inheritdoc */
    public function __construct()
    {
        global $IMG;
        parent::__construct();

        $imgNS = getNS($IMG);
        $authNS = auth_quickaclcheck("$imgNS:*");
        if ($authNS < AUTH_UPLOAD) {
            throw new \RuntimeException("media manager link only with upload permissions");
        }

        $this->svg = DOKU_INC . 'lib/images/menu/11-mediamanager_folder-image.svg';
        $this->type = 'mediaManager';
        $this->params = ['ns' => $imgNS, 'image' => $IMG, 'do' => 'media'];
    }
}