@oat-sa/tao-item-runner-qti/src/qtiItem/core/interactions/GraphicGapMatchInteraction.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) 2014-2017 (original work) Open Assessment Technologies SA (under the project TAO-PRODUCT);
 *
 */
import GraphicInteraction from 'taoQtiItem/qtiItem/core/interactions/GraphicInteraction';
import Element from 'taoQtiItem/qtiItem/core/Element';
import _ from 'lodash';
import rendererConfig from 'taoQtiItem/qtiItem/helper/rendererConfig';
import maxScore from 'taoQtiItem/qtiItem/helper/maxScore';

var GraphicGapMatchInteraction = GraphicInteraction.extend({
    qtiClass: 'graphicGapMatchInteraction',
    init: function init(serial, attributes) {
        this._super(serial, attributes);
        this.gapImgs = {};
    },
    addGapImg: function addGapImg(gapImg) {
        if (Element.isA(gapImg, 'gapImg')) {
            gapImg.setRootElement(this.getRootElement() || null);
            this.gapImgs[gapImg.getSerial()] = gapImg;
        }
    },
    removeGapImg: function removeGapImg(gapImg) {
        var serial = '';
        if (typeof gapImg === 'string') {
            serial = gapImg;
        } else if (Element.isA(gapImg, 'gapImg')) {
            serial = gapImg.getSerial();
        }
        delete this.gapImgs[serial];
        return this;
    },
    getGapImgs: function getGapImgs() {
        return _.clone(this.gapImgs);
    },
    getGapImg: function getGapImg(serial) {
        return this.gapImgs[serial];
    },
    getChoiceByIdentifier: function getChoiceByIdentifier(identifier) {
        var choice = this._super(identifier);
        if (!choice) {
            //if not found among the choices, search the gapImgs
            choice = _.find(this.gapImgs, function(elt) {
                return elt && elt.id() === identifier;
            });
        }
        return choice;
    },
    getComposingElements: function getComposingElements() {
        var serial,
            elts = this._super();
        //recursive to choices:
        for (serial in this.gapImgs) {
            elts[serial] = this.gapImgs[serial];
            elts = _.extend(elts, this.gapImgs[serial].getComposingElements());
        }
        return elts;
    },
    find: function find(serial) {
        var found = this._super(serial);
        if (!found) {
            if (this.gapImgs[serial]) {
                found = { parent: this, element: this.gapImgs[serial] };
            }
        }
        return found;
    },
    render: function render() {
        var serial,
            args = rendererConfig.getOptionsFromArguments(arguments),
            renderer = args.renderer || this.getRenderer(),
            defaultData = {
                gapImgs: []
            };

        //note: no choice shuffling option available for graphic gap match
        var gapImgs = this.getGapImgs();
        for (serial in gapImgs) {
            if (Element.isA(gapImgs[serial], 'choice')) {
                defaultData.gapImgs.push(gapImgs[serial].render({}, null, '', renderer));
            }
        }

        return this._super(_.merge(defaultData, args.data), args.placeholder, args.subclass, renderer);
    },
    toArray: function toArray() {
        var serial,
            gapImgs,
            arr = this._super();
        arr.gapImgs = {};
        gapImgs = this.getGapImgs();
        for (serial in gapImgs) {
            arr.gapImgs[serial] = gapImgs[serial].toArray();
        }
        return arr;
    },
    getNormalMaximum: function getNormalMaximum() {
        var calculatePossiblePairs = function calculatePossiblePairs(graphicGapInteraction) {
            var pairs = [];
            var matchSet1 = maxScore.getMatchMaxOrderedChoices(graphicGapInteraction.getGapImgs());
            var matchSet2 = maxScore.getMatchMaxOrderedChoices(graphicGapInteraction.getChoices());

            _.forEach(matchSet1, function(choice1) {
                _.forEach(matchSet2, function(choice2) {
                    pairs.push([choice1.id, choice2.id]);
                });
            });

            return pairs;
        };
        return maxScore.associateInteractionBased(this, {
            possiblePairs: calculatePossiblePairs(this),
            checkInfinitePair: true
        });
    }
});

export default GraphicGapMatchInteraction;