openmct/platform/representation/src/TemplatePrefetcher.js

/*****************************************************************************
 * Open MCT, Copyright (c) 2014-2018, United States Government
 * as represented by the Administrator of the National Aeronautics and Space
 * Administration. All rights reserved.
 *
 * Open MCT is licensed under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 * http://www.apache.org/licenses/LICENSE-2.0.
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
 * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
 * License for the specific language governing permissions and limitations
 * under the License.
 *
 * Open MCT includes source code licensed under additional open source
 * licenses. See the Open Source Licenses file (LICENSES.md) included with
 * this source code distribution or the Licensing information page available
 * at runtime from the About dialog for additional information.
 *****************************************************************************/

define(
    function () {

        /**
         * Loads all templates when the application is started.
         * @param {platform/representation.TemplateLinker} templateLinker
         *        the `templateLinker` service, used to load and cache
         *        template extensions
         * @param {...Array.<{templateUrl: string}>} extensions arrays
         *        of template or template-like extensions
         */
        function TemplatePrefetcher(templateLinker) {
            Array.prototype.slice.apply(arguments, [1])
                .reduce(function (a, b) {
                    return a.concat(b);
                }, [])
                .forEach(function (ext) {
                    if (ext.templateUrl) {
                        templateLinker.load(templateLinker.getPath(ext));
                    }
                });
        }

        return TemplatePrefetcher;
    }
);