@oat-sa/tao-test-runner-qti/src/plugins/content/accessibility/focusOnFirstField.js

TAO Test Runner QTI implementation

/**
 * 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) 2018 (original work) Open Assessment Technologies SA;
 */
/**
 * Test Runner Content Plugin: Focus the first element if possible
 *
 * @author Dieter Raber <dieter@taotesting.com>
 */

import _ from 'lodash';
import pluginFactory from 'taoTests/runner/plugin';
import ckEditor from 'ckeditor';

/**
 * Check if client uses the iOS device.
 *
 * @returns {*|boolean}
 */
function isIOSDevice() {
    return /(iPhone|iPad)/i.test(navigator.userAgent);
}

/**
 * Returns the configured plugin
 */
export default pluginFactory({
    name: 'focusOnFirstField',

    /**
     * Initialize the plugin (called during runner's init)
     */
    init: function init() {
        var self = this;

        /**
         * When an Item is loaded - if we set the focus on any input then the ipad sets the focus on the
         * keyboard, so the windows lose focus
         * and we get an error message for the test in fullscreen mode
         */
        if (!isIOSDevice()) {
            this.getTestRunner().after('renderitem', function() {
                var $input = self
                    .getAreaBroker()
                    .getContentArea()
                    .find('.qti-itemBody')
                    .find('input, textarea, select')
                    .not(':input[type=button], :input[type=submit], :input[type=reset]')
                    .first();
                var $cke = $input.closest('.qti-interaction').find('.cke');

                if ($cke.length) {
                    _.delay(function() {
                        ckEditor.instances[$cke.attr('id').replace(/^cke_/, '')].focus();
                    }, 100);
                } else {
                    $input.focus();
                }
            });
        }
    }
});