114 lines
3.7 KiB
JavaScript
114 lines
3.7 KiB
JavaScript
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/**
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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) 2017 (original work) Open Assessment Technologies SA;
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*/
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/**
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* This object provide a shared context for the Qti Creator elements (widgets, renderer, etc.)
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* It differs from the itemCreator in the sense that it should not be bound to the context of *items* creation,
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* but should be usable in a broader context of QTI authoring
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*
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* @author Christophe Noël <christophe@taotesting.com>
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*/
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define([
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'lodash',
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'core/eventifier',
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'core/promise',
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'taoQtiItem/qtiCreator/context/loader'
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], function(_, eventifier, Promise, pluginLoader) {
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'use strict';
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/**
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* @returns {qtiCreatorContext}
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*/
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return function qtiCreatorContextFactory() {
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const plugins = {};
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/**
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* Run a method in all plugins
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*
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* @param {String} method - the method to run
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* @returns {Promise} once that resolve when all plugins are done
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*/
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const pluginRun = method => {
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const execStack = [];
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_.forEach(plugins, plugin => {
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if(_.isFunction(plugin[method])){
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execStack.push(plugin[method]());
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}
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});
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return Promise.all(execStack);
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};
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/**
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* @typedef {Object} qtiCreatorContext
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*/
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const qtiCreatorContext = {
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/**
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* @fires qtiCreatorContext#init
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* @returns {Promise}
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*/
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init() {
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return pluginLoader
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.load()
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.then(() => {
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const pluginFactories = pluginLoader.getPlugins();
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// instantiate the plugins first
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_.forEach(pluginFactories, pluginFactory => {
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const plugin = pluginFactory(this);
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plugins[plugin.getName()] = plugin;
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});
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// then initialise them
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return pluginRun('init')
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.then(() => {
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/**
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* @event qtiCreatorContext#init the initialization is done
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*/
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this.trigger('init');
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});
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})
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.catch(err => {
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this.trigger('error', err);
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});
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},
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/**
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* @fires qtiCreatorContext#destroy
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* @returns {Promise}
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*/
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destroy() {
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return pluginRun('destroy')
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.then(() => {
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/**
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* @event qtiCreatorContext#destroy the destroy process is done
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*/
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this.trigger('destroy');
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})
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.catch(function(err) {
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this.trigger('error', err);
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});
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}
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};
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return eventifier(qtiCreatorContext);
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};
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});
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