Filename	Annotation	Percent	Total	Covered	Uncovered
src/helper.feature-detection.js	@flow	61 %	44	27	17

/*
 * Part of Pleiar.no - a collection of tools for nurses
 *
 * Copyright (C) Fagforbundet 2019
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Affero General Public License as
 * published by the Free Software Foundation, either version 3 of the
 * License, or (at your option) any later version.
 *
 * 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 Affero General Public License for more details.
 *
 * You should have received a copy of the GNU Affero General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 *
 */
// @flow

const featureDetection = {
    /**
     * This performs feature detection on an element. It checks if a "token list"
     * (like the a element's rel= attribute) supports a specific value, for
     * instance if it supports rel="noopener".
     */
    tokenSupports (source: DOMTokenList, check: string): boolean
    {
        let supported: boolean = false;
        // We use $UnsafeRecast to work around flow not knowing about source.supports()
        source = (source: $UnsafeRecast);
        try
        {
            if(typeof(source.supports) === "function")
            {
                supported = source.supports(check);
            }
        }
        catch(err) {} // eslint-disable-line
        return supported;
    },

    /**
     * Performs rel="" feature detection on the anchor element
     */
    aSupportsRel(check: string): boolean
    {
        // We use $UnsafeRecast to work around flow not knowing about element.relList
        const element = (document.createElement('a'): $UnsafeRecast);
        if(element.relList !== undefined)
        {
            return featureDetection.tokenSupports(element.relList, check);
        }
        return false;
    }
};

export default featureDetection;

{"expressions":{"covered_count":27,"covered_locs":[{"source":"/builds/fagforbundet/pleiar.no/src/helper.feature-detection.js","type":"SourceFile","start":{"line":22,"column":7,"offset":790},"end":{"line":22,"column":22,"offset":806}},{"source":"/builds/fagforbundet/pleiar.no/src/helper.feature-detection.js","type":"SourceFile","start":{"line":22,"column":26,"offset":809},"end":{"line":57,"column":1,"offset":1967}},{"source":"/builds/fagforbundet/pleiar.no/src/helper.feature-detection.js","type":"SourceFile","start":{"line":28,"column":5,"offset":1036},"end":{"line":42,"column":5,"offset":1516}},{"source":"/builds/fagforbundet/pleiar.no/src/helper.feature-detection.js","type":"SourceFile","start":{"line":28,"column":20,"offset":1051},"end":{"line":28,"column":25,"offset":1057}},{"source":"/builds/fagforbundet/pleiar.no/src/helper.feature-detection.js","type":"SourceFile","start":{"line":28,"column":42,"offset":1073},"end":{"line":28,"column":46,"offset":1078}},{"source":"/builds/fagforbundet/pleiar.no/src/helper.feature-detection.js","type":"SourceFile","start":{"line":30,"column":13,"offset":1115},"end":{"line":30,"column":21,"offset":1124}},{"source":"/builds/fagforbundet/pleiar.no/src/helper.feature-detection.js","type":"SourceFile","start":{"line":30,"column":34,"offset":1136},"end":{"line":30,"column":38,"offset":1141}},{"source":"/builds/fagforbundet/pleiar.no/src/helper.feature-detection.js","type":"SourceFile","start":{"line":32,"column":19,"offset":1249},"end":{"line":32,"column":24,"offset":1255}},{"source":"/builds/fagforbundet/pleiar.no/src/helper.feature-detection.js","type":"SourceFile","start":{"line":35,"column":16,"offset":1310},"end":{"line":35,"column":38,"offset":1333}},{"source":"/builds/fagforbundet/pleiar.no/src/helper.feature-detection.js","type":"SourceFile","start":{"line":35,"column":16,"offset":1310},"end":{"line":35,"column":53,"offset":1348}},{"source":"/builds/fagforbundet/pleiar.no/src/helper.feature-detection.js","type":"SourceFile","start":{"line":35,"column":44,"offset":1338},"end":{"line":35,"column":53,"offset":1348}},{"source":"/builds/fagforbundet/pleiar.no/src/helper.feature-detection.js","type":"SourceFile","start":{"line":37,"column":45,"offset":1408},"end":{"line":37,"column":49,"offset":1413}},{"source":"/builds/fagforbundet/pleiar.no/src/helper.feature-detection.js","type":"SourceFile","start":{"line":41,"column":16,"offset":1500},"end":{"line":41,"column":24,"offset":1509}},{"source":"/builds/fagforbundet/pleiar.no/src/helper.feature-detection.js","type":"SourceFile","start":{"line":47,"column":5,"offset":1602},"end":{"line":56,"column":5,"offset":1965}},{"source":"/builds/fagforbundet/pleiar.no/src/helper.feature-detection.js","type":"SourceFile","start":{"line":47,"column":18,"offset":1615},"end":{"line":47,"column":22,"offset":1620}},{"source":"/builds/fagforbundet/pleiar.no/src/helper.feature-detection.js","type":"SourceFile","start":{"line":50,"column":26,"offset":1756},"end":{"line":50,"column":33,"offset":1764}},{"source":"/builds/fagforbundet/pleiar.no/src/helper.feature-detection.js","type":"SourceFile","start":{"line":50,"column":26,"offset":1756},"end":{"line":50,"column":47,"offset":1778}},{"source":"/builds/fagforbundet/pleiar.no/src/helper.feature-detection.js","type":"SourceFile","start":{"line":50,"column":26,"offset":1756},"end":{"line":50,"column":52,"offset":1783}},{"source":"/builds/fagforbundet/pleiar.no/src/helper.feature-detection.js","type":"SourceFile","start":{"line":50,"column":49,"offset":1779},"end":{"line":50,"column":51,"offset":1782}},{"source":"/builds/fagforbundet/pleiar.no/src/helper.feature-detection.js","type":"SourceFile","start":{"line":51,"column":12,"offset":1812},"end":{"line":51,"column":40,"offset":1841}},{"source":"/builds/fagforbundet/pleiar.no/src/helper.feature-detection.js","type":"SourceFile","start":{"line":51,"column":32,"offset":1832},"end":{"line":51,"column":40,"offset":1841}},{"source":"/builds/fagforbundet/pleiar.no/src/helper.feature-detection.js","type":"SourceFile","start":{"line":53,"column":20,"offset":1872},"end":{"line":53,"column":35,"offset":1888}},{"source":"/builds/fagforbundet/pleiar.no/src/helper.feature-detection.js","type":"SourceFile","start":{"line":53,"column":20,"offset":1872},"end":{"line":53,"column":49,"offset":1902}},{"source":"/builds/fagforbundet/pleiar.no/src/helper.feature-detection.js","type":"SourceFile","start":{"line":53,"column":20,"offset":1872},"end":{"line":53,"column":73,"offset":1926}},{"source":"/builds/fagforbundet/pleiar.no/src/helper.feature-detection.js","type":"SourceFile","start":{"line":53,"column":68,"offset":1920},"end":{"line":53,"column":72,"offset":1925}},{"source":"/builds/fagforbundet/pleiar.no/src/helper.feature-detection.js","type":"SourceFile","start":{"line":55,"column":16,"offset":1953},"end":{"line":55,"column":20,"offset":1958}},{"source":"/builds/fagforbundet/pleiar.no/src/helper.feature-detection.js","type":"SourceFile","start":{"line":59,"column":16,"offset":1985},"end":{"line":59,"column":31,"offset":2001}}],"uncovered_count":17,"uncovered_locs":[{"source":"/builds/fagforbundet/pleiar.no/src/helper.feature-detection.js","type":"SourceFile","start":{"line":32,"column":9,"offset":1239},"end":{"line":32,"column":14,"offset":1245}},{"source":"/builds/fagforbundet/pleiar.no/src/helper.feature-detection.js","type":"SourceFile","start":{"line":32,"column":9,"offset":1239},"end":{"line":32,"column":40,"offset":1271}},{"source":"/builds/fagforbundet/pleiar.no/src/helper.feature-detection.js","type":"SourceFile","start":{"line":32,"column":18,"offset":1248},"end":{"line":32,"column":40,"offset":1271}},{"source":"/builds/fagforbundet/pleiar.no/src/helper.feature-detection.js","type":"SourceFile","start":{"line":35,"column":23,"offset":1317},"end":{"line":35,"column":28,"offset":1323}},{"source":"/builds/fagforbundet/pleiar.no/src/helper.feature-detection.js","type":"SourceFile","start":{"line":35,"column":23,"offset":1317},"end":{"line":35,"column":37,"offset":1332}},{"source":"/builds/fagforbundet/pleiar.no/src/helper.feature-detection.js","type":"SourceFile","start":{"line":37,"column":17,"offset":1380},"end":{"line":37,"column":25,"offset":1389}},{"source":"/builds/fagforbundet/pleiar.no/src/helper.feature-detection.js","type":"SourceFile","start":{"line":37,"column":17,"offset":1380},"end":{"line":37,"column":50,"offset":1414}},{"source":"/builds/fagforbundet/pleiar.no/src/helper.feature-detection.js","type":"SourceFile","start":{"line":37,"column":29,"offset":1392},"end":{"line":37,"column":34,"offset":1398}},{"source":"/builds/fagforbundet/pleiar.no/src/helper.feature-detection.js","type":"SourceFile","start":{"line":37,"column":29,"offset":1392},"end":{"line":37,"column":43,"offset":1407}},{"source":"/builds/fagforbundet/pleiar.no/src/helper.feature-detection.js","type":"SourceFile","start":{"line":37,"column":29,"offset":1392},"end":{"line":37,"column":50,"offset":1414}},{"source":"/builds/fagforbundet/pleiar.no/src/helper.feature-detection.js","type":"SourceFile","start":{"line":40,"column":15,"offset":1454},"end":{"line":40,"column":17,"offset":1457}},{"source":"/builds/fagforbundet/pleiar.no/src/helper.feature-detection.js","type":"SourceFile","start":{"line":50,"column":15,"offset":1745},"end":{"line":50,"column":21,"offset":1752}},{"source":"/builds/fagforbundet/pleiar.no/src/helper.feature-detection.js","type":"SourceFile","start":{"line":50,"column":25,"offset":1755},"end":{"line":50,"column":68,"offset":1799}},{"source":"/builds/fagforbundet/pleiar.no/src/helper.feature-detection.js","type":"SourceFile","start":{"line":51,"column":12,"offset":1812},"end":{"line":51,"column":18,"offset":1819}},{"source":"/builds/fagforbundet/pleiar.no/src/helper.feature-detection.js","type":"SourceFile","start":{"line":51,"column":12,"offset":1812},"end":{"line":51,"column":26,"offset":1827}},{"source":"/builds/fagforbundet/pleiar.no/src/helper.feature-detection.js","type":"SourceFile","start":{"line":53,"column":51,"offset":1903},"end":{"line":53,"column":57,"offset":1910}},{"source":"/builds/fagforbundet/pleiar.no/src/helper.feature-detection.js","type":"SourceFile","start":{"line":53,"column":51,"offset":1903},"end":{"line":53,"column":65,"offset":1918}}],"empty_count":1,"empty_locs":[{"source":"/builds/fagforbundet/pleiar.no/src/helper.feature-detection.js","type":"SourceFile","start":{"line":40,"column":15,"offset":1454},"end":{"line":40,"column":17,"offset":1457}}]},"filename":"src/helper.feature-detection.js","annotation":"flow","isFlow":true,"percent":61}