347 lines
12 KiB
JavaScript
347 lines
12 KiB
JavaScript
/**
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; under version 2
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* of the License (non-upgradable).
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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*
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* Copyright (c) 2018-2020 (original work) Open Assessment Technologies SA ;
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*/
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/**
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* Test runner provider for the QTI item previewer
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*
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* @author Jean-Sébastien Conan <jean-sebastien@taotesting.com>
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*/
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define([
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'jquery',
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'lodash',
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'i18n',
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'ui/feedback',
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'taoTests/runner/areaBroker',
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'taoTests/runner/testStore',
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'taoTests/runner/proxy',
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'taoQtiTest/runner/ui/toolbox/toolbox',
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'taoQtiItem/runner/qtiItemRunner',
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'taoQtiTest/runner/config/assetManager',
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'taoItems/assets/strategies',
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'taoQtiItem/qtiCommonRenderer/helpers/container',
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'tpl!taoQtiTestPreviewer/previewer/provider/item/tpl/item'
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], function (
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$,
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_,
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__,
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feedback,
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areaBrokerFactory,
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testStoreFactory,
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proxyFactory,
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toolboxFactory,
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qtiItemRunner,
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assetManagerFactory,
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assetStrategies,
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containerHelper,
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layoutTpl
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) {
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'use strict';
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//the asset strategies
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const assetManager = assetManagerFactory();
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assetManager.prependStrategy(assetStrategies.taomedia);
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//store the current execution context of the common renderer (preview)
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let _$previousContext = null;
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function setContext($context){
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_$previousContext = containerHelper.getContext();
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containerHelper.setContext($context);
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}
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function restoreContext(){
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containerHelper.setContext(_$previousContext);
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_$previousContext = null;
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}
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/**
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* A Test runner provider to be registered against the runner
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*/
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return {
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//provider name
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name: 'qtiItemPreviewer',
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/**
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* Initialize and load the area broker with a correct mapping
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* @returns {areaBroker}
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*/
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loadAreaBroker() {
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const $layout = $(layoutTpl());
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return areaBrokerFactory($layout, {
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contentWrapper: $('.content-wrapper', $layout),
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content: $('#qti-content', $layout),
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toolbox: $('.bottom-action-bar .tools-box', $layout),
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navigation: $('.bottom-action-bar .navi-box-list', $layout),
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control: $('.top-action-bar .control-box', $layout),
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actionsBar: $('.bottom-action-bar .control-box', $layout),
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panel: $('.test-sidebar-left', $layout),
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header: $('.top-action-bar .tools-box', $layout),
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context: $('.top-action-bar .navi-box-list', $layout)
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});
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},
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/**
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* Initialize and load the test runner proxy
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* @returns {proxy}
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*/
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loadProxy() {
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const {proxyProvider, serviceCallId, bootstrap, timeout} = this.getConfig();
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return proxyFactory(proxyProvider || 'qtiItemPreviewerProxy', {serviceCallId, bootstrap, timeout});
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},
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/**
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* Initialize and load the test store
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* @returns {testStore}
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*/
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loadTestStore() {
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const config = this.getConfig();
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//the test run needs to be identified uniquely
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const identifier = config.serviceCallId || `test-${Date.now()}`;
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return testStoreFactory(identifier);
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},
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/**
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* Installation of the provider, called during test runner init phase.
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*/
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install() {
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const {plugins} = this.getConfig().options;
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if (plugins) {
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_.forEach(this.getPlugins(), plugin => {
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if (_.isPlainObject(plugin) && _.isFunction(plugin.setConfig)) {
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const config = plugins[plugin.getName()];
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if (_.isPlainObject(config)) {
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plugin.setConfig(config);
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}
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}
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});
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}
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},
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/**
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* Initialization of the provider, called during test runner init phase.
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*
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* We install behaviors during this phase (ie. even handlers)
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* and we call proxy.init.
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*
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* @this {runner} the runner context, not the provider
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* @returns {Promise} to chain proxy.init
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*/
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init() {
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const dataHolder = this.getDataHolder();
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const areaBroker = this.getAreaBroker();
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areaBroker.setComponent('toolbox', toolboxFactory());
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areaBroker.getToolbox().init();
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/*
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* Install behavior on events
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*/
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this
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.on('submititem', () => {
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const itemState = this.itemRunner.getState();
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const itemResponses = this.itemRunner.getResponses();
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this.trigger('disabletools disablenav');
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this.trigger('submitresponse', itemResponses, itemState);
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return this.getProxy()
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.submitItem(dataHolder.get('itemIdentifier'), itemState, itemResponses)
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.then(response => {
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this.trigger('scoreitem', response);
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this.trigger('enabletools enablenav resumeitem');
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})
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.catch(err => {
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this.trigger('enabletools enablenav');
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//some server errors are valid, so we don't fail (prevent empty responses)
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if (err.code === 200) {
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this.trigger('alert.submitError',
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err.message || __('An error occurred during results submission. Please retry.'),
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() => this.trigger('resumeitem')
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);
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}
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});
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})
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.on('ready', () => {
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const itemIdentifier = dataHolder.get('itemIdentifier');
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const itemData = dataHolder.get('itemData');
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if (itemIdentifier) {
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if (itemData) {
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this.renderItem(itemIdentifier, itemData);
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} else {
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this.loadItem(itemIdentifier);
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}
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}
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})
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.on('loaditem', (itemRef, itemData) => {
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dataHolder.set('itemIdentifier', itemRef);
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dataHolder.set('itemData', itemData);
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})
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.on('renderitem', () => {
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this.trigger('enabletools enablenav');
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})
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.on('resumeitem', () => {
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this.trigger('enableitem enablenav');
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})
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.on('disableitem', () => {
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this.trigger('disabletools');
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})
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.on('enableitem', () => {
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this.trigger('enabletools');
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})
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.on('error', () => {
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this.trigger('disabletools enablenav');
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})
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.on('finish leave', () => {
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this.trigger('disablenav disabletools');
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this.flush();
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})
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.on('flush', () => {
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this.destroy();
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});
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return this.getProxy()
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.init()
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.then(data => {
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dataHolder.set('itemIdentifier', data.itemIdentifier);
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dataHolder.set('itemData', data.itemData);
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});
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},
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/**
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* Rendering phase of the test runner
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*
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* Attach the test runner to the DOM
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*
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* @this {runner} the runner context, not the provider
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*/
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render() {
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const config = this.getConfig();
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const areaBroker = this.getAreaBroker();
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config.renderTo.append(areaBroker.getContainer());
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areaBroker.getToolbox().render(areaBroker.getToolboxArea());
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},
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/**
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* LoadItem phase of the test runner
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*
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* We call the proxy in order to get the item data
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*
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* @this {runner} the runner context, not the provider
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* @param {String} itemIdentifier - The identifier of the item to update
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* @returns {Promise} that calls in parallel the state and the item data
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*/
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loadItem(itemIdentifier) {
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return this.getProxy().getItem(itemIdentifier);
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},
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/**
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* RenderItem phase of the test runner
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*
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* Here we initialize the item runner and wrap it's call to the test runner
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*
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* @this {runner} the runner context, not the provider
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* @param {String} itemIdentifier - The identifier of the item to update
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* @param {Object} itemData - The definition data of the item
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* @returns {Promise} resolves when the item is ready
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*/
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renderItem(itemIdentifier, itemData) {
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const areaBroker = this.getAreaBroker();
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const options = this.getConfig().options;
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const changeState = () => {
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this.setItemState(itemIdentifier, 'changed', true);
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};
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setContext(areaBroker.getContentArea());
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return new Promise((resolve, reject) => {
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assetManager.setData('baseUrl', itemData.baseUrl);
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itemData.content = itemData.content || {};
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this.itemRunner = qtiItemRunner(itemData.content.type, itemData.content.data, Object.assign({
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assetManager: assetManager
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}, options))
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.on('error', err => {
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this.trigger('enablenav');
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reject(err);
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feedback().error(__('It seems that there is an error during item preview loading. Please, try again.'));
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})
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.on('init', function onItemRunnerInit() {
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const {state, portableElements} = itemData;
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this.render(areaBroker.getContentArea(), {state, portableElements});
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})
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.on('render', function onItemRunnerRender() {
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this.on('responsechange', changeState);
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this.on('statechange', changeState);
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resolve();
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})
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.init();
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});
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},
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/**
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* UnloadItem phase of the test runner
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*
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* Item clean up
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*
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* @this {runner} the runner context, not the provider
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* @returns {Promise} resolves when the item is cleared
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*/
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unloadItem() {
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this.trigger('beforeunloaditem disablenav disabletools');
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if (this.itemRunner) {
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return new Promise(resolve => {
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this.itemRunner
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.on('clear', resolve)
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.clear();
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});
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}
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return Promise.resolve();
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},
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/**
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* Destroy phase of the test runner
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*
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* Clean up
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*
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* @this {runner} the runner context, not the provider
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*/
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destroy() {
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const areaBroker = this.getAreaBroker();
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// prevent the item to be displayed while test runner is destroying
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if (this.itemRunner) {
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this.itemRunner
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.on('clear', restoreContext)
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.clear();
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}
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this.itemRunner = null;
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if (areaBroker) {
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areaBroker.getToolbox().destroy();
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}
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}
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};
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});
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