@oat-sa/tao-item-runner-qti/src/qtiCommonRenderer/helpers/PortableElement.js

TAO QTI Item Runner modules

/**
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License
 * as published by the Free Software Foundation; under version 2
 * of the License (non-upgradable).
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
 *
 * Copyright (c) 2015-2022 (original work) Open Assessment Technologies SA ;
 */

/**
 * Portable element helper
 */

var imgSrcPattern = /(<img[^>]*\ssrc=["'])([^"']+)(["'])/gi;

/**
 * Replace all identified relative media urls by the absolute one.
 * For now only images are supported.
 *
 * @param {String} html - the html to parse
 * @param {Object} the renderer
 * @returns {String} the html without updated URLs
 */
function fixMarkupMediaSources(html, renderer) {
    html = html || '';

    return html.replace(imgSrcPattern, function(substr, $1, $2, $3) {
        var resolved = renderer.resolveUrl($2) || $2;
        return $1 + resolved + $3;
    });
}

/**
 * @exports taoQtiItem/qtiCommonRenderer/helpers/PortableElement
 */
export default {
    fixMarkupMediaSources: fixMarkupMediaSources
};