cf3566742b
Co-authored-by: Deep Tailor <deep.j.tailor@nasa.gov> Co-authored-by: Andrew Henry <akhenry@gmail.com>
77 lines
3.1 KiB
JavaScript
77 lines
3.1 KiB
JavaScript
/*****************************************************************************
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* Open MCT, Copyright (c) 2014-2021, United States Government
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* as represented by the Administrator of the National Aeronautics and Space
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* Administration. All rights reserved.
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*
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* Open MCT is licensed under the Apache License, Version 2.0 (the
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* "License"); you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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* http://www.apache.org/licenses/LICENSE-2.0.
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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* License for the specific language governing permissions and limitations
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* under the License.
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*
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* Open MCT includes source code licensed under additional open source
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* licenses. See the Open Source Licenses file (LICENSES.md) included with
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* this source code distribution or the Licensing information page available
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* at runtime from the About dialog for additional information.
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*****************************************************************************/
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define([], function () {
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/**
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* Navigates away from orphan objects whenever they are detected.
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*
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* An orphan object is an object whose apparent parent does not
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* actually contain it. This may occur in certain circumstances, such
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* as when persistence succeeds for a newly-created object but fails
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* for its parent.
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*
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* @param throttle the `throttle` service
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* @param topic the `topic` service
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* @param navigationService the `navigationService`
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* @constructor
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*/
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function OrphanNavigationHandler(throttle, topic, navigationService) {
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var throttledCheckNavigation;
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function getParent(domainObject) {
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var context = domainObject.getCapability('context');
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return context.getParent();
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}
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function preventOrphanNavigation(domainObject) {
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var parent = getParent(domainObject);
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parent.useCapability('composition')
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.then(function (composees) {
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var isOrphan = composees.every(function (c) {
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return c.getId() !== domainObject.getId();
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});
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if (isOrphan) {
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parent.getCapability('action').perform('navigate');
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}
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});
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}
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function checkNavigation() {
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var navigatedObject = navigationService.getNavigation();
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if (navigatedObject && navigatedObject.hasCapability('context')) {
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if (!navigatedObject.getCapability('editor').isEditContextRoot()) {
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preventOrphanNavigation(navigatedObject);
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}
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}
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}
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throttledCheckNavigation = throttle(checkNavigation);
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navigationService.addListener(throttledCheckNavigation);
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topic('mutation').listen(throttledCheckNavigation);
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}
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return OrphanNavigationHandler;
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});
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