99 lines
3.7 KiB
JavaScript
99 lines
3.7 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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/*global define*/
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define(
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[],
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function () {
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/**
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* Wraps persistence capability to enable transactions. Transactions
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* will cause persist calls not to be invoked immediately, but
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* rather queued until [EditorCapability.save()]{@link EditorCapability#save}
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* or [EditorCapability.cancel()]{@link EditorCapability#cancel} are
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* called.
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* @memberof platform/commonUI/edit/capabilities
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* @param $q
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* @param transactionService
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* @param persistenceCapability
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* @param domainObject
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* @constructor
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*/
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function TransactionalPersistenceCapability(
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$q,
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transactionService,
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persistenceCapability,
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domainObject
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) {
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this.transactionService = transactionService;
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this.persistenceCapability = persistenceCapability;
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this.domainObject = domainObject;
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this.$q = $q;
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this.persistPending = false;
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}
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/**
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* The wrapped persist function. If a transaction is active, persist
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* will be queued until the transaction is committed or cancelled.
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* @returns {*}
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*/
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TransactionalPersistenceCapability.prototype.persist = function () {
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var self = this;
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function onCommit() {
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return self.persistenceCapability.persist().then(function (result) {
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self.persistPending = false;
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return result;
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});
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}
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function onCancel() {
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return self.persistenceCapability.refresh().then(function (result) {
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self.persistPending = false;
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return result;
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});
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}
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if (this.transactionService.isActive()) {
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if (!this.persistPending) {
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this.transactionService.addToTransaction(onCommit, onCancel);
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this.persistPending = true;
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}
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//Need to return a promise from this function
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return this.$q.when(true);
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} else {
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return this.persistenceCapability.persist();
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}
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};
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TransactionalPersistenceCapability.prototype.refresh = function () {
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return this.persistenceCapability.refresh();
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};
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TransactionalPersistenceCapability.prototype.getSpace = function () {
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return this.persistenceCapability.getSpace();
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};
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return TransactionalPersistenceCapability;
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}
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);
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