text: /*****************************************************************************
   * 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';
  
          var DISALLOWED_ACTIONS = [
              "move",
              "copy"
          ];
  
          /**
           * This policy prevents performing move/copy/link actions across
           * different persistence spaces (e.g. linking to an object in
           * a private space from an object in a public space.)
           * @memberof {platform/entanglement}
           * @constructor
           * @implements {Policy}
           */
          function CrossSpacePolicy() {
          }
  
          function lookupSpace(domainObject) {
              var persistence = domainObject &&
                  domainObject.getCapability("persistence");
              return persistence && persistence.getSpace();
          }
  
          function isCrossSpace(context) {
              var domainObject = context.domainObject,
                  selectedObject = context.selectedObject,
                  spaces = [ domainObject, selectedObject ].map(lookupSpace);
              return selectedObject !== undefined &&
                  domainObject !== undefined &&
                  lookupSpace(domainObject) !== lookupSpace(selectedObject);
          }
  
          CrossSpacePolicy.prototype.allow = function (action, context) {
              var key = action.getMetadata().key;
  
              if (DISALLOWED_ACTIONS.indexOf(key) !== -1) {
                  return !isCrossSpace(context);
              }
  
              return true;
          };
  
          return CrossSpacePolicy;
  
      }
  );
  