Merge branch 'master' into open671

platform/features/table/src/controllers/RealtimeTableController.js

@@ -0,0 +1,98 @@
+/*****************************************************************************
+ * 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.
+ *****************************************************************************/
+
+define(
+    [
+        './TelemetryTableController'
+    ],
+    function (TableController) {
+
+        /**
+         * Extends TelemetryTableController and adds real-time streaming
+         * support.
+         * @memberof platform/features/table
+         * @param $scope
+         * @param telemetryHandler
+         * @param telemetryFormatter
+         * @constructor
+         */
+        function RealtimeTableController($scope, telemetryHandler, telemetryFormatter) {
+            TableController.call(this, $scope, telemetryHandler, telemetryFormatter);
+
+            $scope.autoScroll = false;
+            this.maxRows = 100000;
+
+            /*
+             * Determine if auto-scroll should be enabled. Is enabled
+             * automatically when telemetry type is string
+             */
+            function hasStringTelemetry(domainObject) {
+                var telemetry = domainObject &&
+                        domainObject.getCapability('telemetry'),
+                    metadata = telemetry ? telemetry.getMetadata() : {},
+                    ranges = metadata.ranges || [];
+
+                return ranges.some(function (range) {
+                    return range.format === 'string';
+                });
+            }
+            $scope.$watch('domainObject', function (domainObject) {
+                //When a domain object becomes available, check whether the
+                // view should auto-scroll to the bottom.
+                if (domainObject && hasStringTelemetry(domainObject)){
+                    $scope.autoScroll = true;
+                }
+            });
+        }
+
+        RealtimeTableController.prototype = Object.create(TableController.prototype);
+
+        /**
+         * Overrides method on TelemetryTableController providing handling
+         * for realtime data.
+         */
+        RealtimeTableController.prototype.addRealtimeData = function() {
+            var self = this,
+                datum,
+                row;
+            this.handle.getTelemetryObjects().forEach(function (telemetryObject){
+                datum = self.handle.getDatum(telemetryObject);
+                if (datum) {
+                    //Populate row values from telemetry datum
+                    row = self.table.getRowValues(telemetryObject, datum);
+                    self.$scope.rows.push(row);
+
+                    //Inform table that a new row has been added
+                    if (self.$scope.rows.length > self.maxRows) {
+                        self.$scope.$broadcast('remove:row', 0);
+                        self.$scope.rows.shift();
+                    }
+
+                    self.$scope.$broadcast('add:row',
+                        self.$scope.rows.length - 1);
+                }
+            });
+        };
+
+        return RealtimeTableController;
+    }
+);