66 lines
2.6 KiB
JavaScript
66 lines
2.6 KiB
JavaScript
/*****************************************************************************
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* Open MCT Web, Copyright (c) 2014-2015, 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 Web 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 Web 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(
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[],
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function () {
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/**
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* Policy controlling whether navigation events should proceed
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* when object is being edited.
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* @memberof platform/commonUI/edit
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* @constructor
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* @implements {Policy.<Action, ActionContext>}
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*/
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function EditNavigationPolicy(policyService) {
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this.policyService = policyService;
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}
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/**
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* @private
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*/
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EditNavigationPolicy.prototype.isDirty = function(domainObject) {
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var navigatedObject = domainObject,
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editorCapability = navigatedObject &&
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navigatedObject.getCapability("editor"),
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statusCapability = navigatedObject &&
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navigatedObject.getCapability("status");
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return statusCapability && statusCapability.get('editing') &&
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editorCapability && editorCapability.dirty();
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};
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/**
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* Allow navigation if an object is not dirty, or if the user elects
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* to proceed anyway.
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* @param currentNavigation
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* @returns {boolean|*} true if the object model is clean; or if
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* it's dirty and the user wishes to proceed anyway.
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*/
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EditNavigationPolicy.prototype.allow = function (currentNavigation) {
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return !this.isDirty(currentNavigation);
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};
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return EditNavigationPolicy;
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}
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);
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