tao-test/app/taoQtiItem/views/js/qtiCreator/model/helper/container.js

103 lines
3.9 KiB
JavaScript

/*
* 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) 2014-2018 (original work) Open Assessment Technologies SA
*
*/
define(['jquery', 'lodash', 'taoQtiItem/qtiCreator/model/qtiClasses'], function($, _, qtiClasses){
"use strict";
var methods = {
createElements : function(container, body, callback){
var regex = /{{([a-z_]+)\.?([a-z_]*):new}}/ig;
//first pass to get required qti classes, but do not replace
var required = {};
body.replace(regex,
function(original, qtiClass){
if(qtiClasses[qtiClass]){
required[qtiClass] = qtiClasses[qtiClass];
}else{
throw new Error('missing required class : ' + qtiClass);
}
});
//second pass after requiring classes:
require(_.values(required), function(){
//register and name all loaded classes:
var Qti = _.reduce([].slice.call(arguments), function (acc, qtiClassElt) {
acc[qtiClassElt.prototype.qtiClass] = qtiClassElt;
return acc;
}, {});
var promises = [];
var $doc = $(document);
//create new elements
var newElts = {};
var newBody = body.replace(regex,
function(original, qtiClass, subClass){
var elt = new Qti[qtiClass]();
if(Qti[qtiClass]){
//create new element
if(container.getRenderer()){
elt.setRenderer(container.getRenderer());
}
newElts[elt.getSerial()] = elt;
//manage sub-classed qtiClass
if(subClass){
//@todo generalize it from customInteraction
elt.typeIdentifier = subClass;
}
return elt.placeholder();
}else{
return original;
}
});
//insert them:
container.setElements(newElts, newBody);
//operations after insertions:
_.each(newElts, function(elt){
if(_.isFunction(elt.buildIdentifier)){
elt.buildIdentifier();
}
if(_.isFunction(elt.afterCreate)){
promises.push(elt.afterCreate());
}
});
if(typeof(callback) === 'function'){
Promise.all(promises).then(function(){
_.each(newElts, function(elt){
$doc.trigger('elementCreated.qti-widget', {parent : container.parent(), element : elt});
});
callback.call(container, newElts);
}).catch(function(err){
container.getRenderer().getCreatorContext().trigger('error', err);
});
}
});
}
};
return methods;
});