2015-09-22 14:39:15 -07:00

105 lines
3.9 KiB
JavaScript

/*****************************************************************************
* Open MCT Web, Copyright (c) 2014-2015, United States Government
* as represented by the Administrator of the National Aeronautics and Space
* Administration. All rights reserved.
*
* Open MCT Web 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 Web 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.
*****************************************************************************/
/*global define */
define(
function () {
"use strict";
/**
* MoveService provides an interface for moving objects from one
* location to another. It also provides a method for determining if
* an object can be copied to a specific location.
* @constructor
* @memberof platform/entanglement
* @implements {platform/entanglement.AbstractComposeService}
*/
function MoveService(policyService, linkService) {
this.policyService = policyService;
this.linkService = linkService;
}
MoveService.prototype.validate = function (object, parentCandidate) {
var currentParent = object
.getCapability('context')
.getParent();
if (!parentCandidate || !parentCandidate.getId) {
return false;
}
if (parentCandidate.getId() === currentParent.getId()) {
return false;
}
if (parentCandidate.getId() === object.getId()) {
return false;
}
if (parentCandidate.getModel().composition.indexOf(object.getId()) !== -1) {
return false;
}
return this.policyService.allow(
"composition",
parentCandidate.getCapability('type'),
object.getCapability('type')
);
};
MoveService.prototype.perform = function (object, parentObject) {
function relocate(objectInNewContext) {
var newLocationCapability = objectInNewContext
.getCapability('location'),
oldLocationCapability = object
.getCapability('location');
if (!newLocationCapability ||
!oldLocationCapability) {
return;
}
if (oldLocationCapability.isOriginal()) {
return newLocationCapability.setPrimaryLocation(
newLocationCapability
.getContextualLocation()
);
}
}
if (!this.validate(object, parentObject)) {
throw new Error(
"Tried to move objects without validating first."
);
}
return this.linkService
.perform(object, parentObject)
.then(relocate)
.then(function () {
return object
.getCapability('action')
.perform('remove');
});
};
return MoveService;
}
);