66 lines
2.7 KiB
JavaScript
66 lines
2.7 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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function () {
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"use strict";
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/**
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* Policy preventing the Plot view from being made available for
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* domain objects which have non-numeric telemetry.
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* @implements {Policy}
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*/
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function PlotViewPolicy() {
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function hasImageTelemetry(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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// Generally, we want to allow Plot for telemetry-providing
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// objects (most telemetry is plottable.) We only want to
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// suppress this for telemetry which only has explicitly
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// non-numeric values.
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return ranges.length === 0 || ranges.some(function (range) {
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// Assume format is numeric if it is undefined
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// (numeric telemetry is the common case)
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return range.format === undefined ||
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range.format === 'number';
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});
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}
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return {
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allow: function (view, domainObject) {
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if (view.key === 'plot') {
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return hasImageTelemetry(domainObject);
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}
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return true;
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}
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};
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}
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return PlotViewPolicy;
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}
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);
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