89 lines
3.6 KiB
JavaScript
89 lines
3.6 KiB
JavaScript
/*****************************************************************************
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* Open MCT, Copyright (c) 2014-2018, 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(
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function () {
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/**
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* The "Cancel" action; the action triggered by clicking Cancel from
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* Edit Mode. Exits the editing user interface and invokes object
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* capabilities to persist the changes that have been made.
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* @constructor
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* @memberof platform/commonUI/edit
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* @implements {Action}
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*/
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function CancelAction(context) {
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this.domainObject = context.domainObject;
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}
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/**
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* Cancel editing.
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*
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* @returns {Promise} a promise that will be fulfilled when
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* cancellation has completed
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*/
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CancelAction.prototype.perform = function () {
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var domainObject = this.domainObject;
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function returnToBrowse() {
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var parent;
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//If the object existed already, navigate to refresh view
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// with previous object state.
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if (domainObject.getModel().persisted) {
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return domainObject.getCapability("action").perform("navigate");
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} else {
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//If the object was new, and user has cancelled, then
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//navigate back to parent because nothing to show.
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return domainObject.getCapability("location").getOriginal().then(function (original) {
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parent = original.getCapability("context").getParent();
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return parent.getCapability("action").perform("navigate");
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});
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}
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}
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function cancel() {
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return domainObject.getCapability("editor").finish();
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}
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//Do navigation first in order to trigger unsaved changes dialog
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return returnToBrowse()
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.then(cancel);
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};
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/**
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* Check if this action is applicable in a given context.
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* This will ensure that a domain object is present in the context,
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* and that this domain object is in Edit mode.
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* @returns {boolean} true if applicable
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*/
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CancelAction.appliesTo = function (context) {
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var domainObject = (context || {}).domainObject;
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return domainObject !== undefined &&
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domainObject.hasCapability('editor') &&
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domainObject.getCapability('editor').isEditContextRoot();
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};
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return CancelAction;
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}
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);
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