68 lines
2.5 KiB
JavaScript
68 lines
2.5 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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/**
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* Module defining MessagesViewPolicy. Created by shale on 06/24/2015.
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*/
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define(
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[],
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function () {
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"use strict";
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/**
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* Policy controlling when the Messages view should be avaliable.
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* @memberof platform/features/events
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* @constructor
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* @implements {Policy.<View, DomainObject>}
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*/
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function MessagesViewPolicy() {}
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function hasStringTelemetry(domainObject) {
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var telemetry = domainObject &&
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domainObject.getCapability('telemetry'),
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metadata = telemetry ? telemetry.getMetadata() : {},
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ranges = metadata.ranges || [];
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return ranges.some(function (range) {
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return range.format === 'string';
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});
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}
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MessagesViewPolicy.prototype.allow = function (view, domainObject) {
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// This policy only applies for the Messages view
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if (view.key === 'messages') {
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// The Messages view is allowed only if the domain
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// object has string telemetry
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if (!hasStringTelemetry(domainObject)) {
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return false;
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}
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}
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// Like all policies, allow by default.
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return true;
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};
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return MessagesViewPolicy;
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}
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);
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