Victor Woeltjen 897433f717 [Imagery] Test ImageryController
WTD-1170.
2015-06-17 21:15:17 -07:00

134 lines
4.9 KiB
JavaScript

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*****************************************************************************/
/*global define*/
define(
['moment'],
function (moment) {
"use strict";
var DATE_FORMAT = "YYYY-MM-DD",
TIME_FORMAT = "HH:mm:ss.SSS";
/**
* Controller for the "Imagery" view of a domain object which
* provides image telemetry.
*/
function ImageryController($scope, telemetryHandler) {
var date = "",
time = "",
imageUrl = "",
paused = false,
handle;
function releaseSubscription() {
if (handle) {
handle.unsubscribe();
handle = undefined;
}
}
function updateValues() {
var imageObject = handle && handle.getTelemetryObjects()[0],
m;
if (imageObject && !paused) {
m = moment.utc(handle.getDomainValue(imageObject));
date = m.format(DATE_FORMAT);
time = m.format(TIME_FORMAT);
imageUrl = handle.getRangeValue(imageObject);
}
}
// Create a new subscription; telemetrySubscriber gets
// to do the meaningful work here.
function subscribe(domainObject) {
releaseSubscription();
date = "";
time = "";
imageUrl = "";
handle = domainObject && telemetryHandler.handle(
domainObject,
updateValues,
true // Lossless
);
}
// Subscribe to telemetry when a domain object becomes available
$scope.$watch('domainObject', subscribe);
// Unsubscribe when the plot is destroyed
$scope.$on("$destroy", releaseSubscription);
return {
/**
* Get the time portion (hours, minutes, seconds) of the
* timestamp associated with the incoming image telemetry.
* @returns {string} the time
*/
getTime: function () {
return time;
},
/**
* Get the date portion (month, year) of the
* timestamp associated with the incoming image telemetry.
* @returns {string} the date
*/
getDate: function () {
return date;
},
/**
* Get the time zone for the displayed time/date corresponding
* to the timestamp associated with the incoming image
* telemetry.
* @returns {string} the time
*/
getZone: function () {
return "UTC";
},
/**
* Get the URL of the image telemetry to display.
* @returns {string} URL for telemetry image
*/
getImageUrl: function () {
return imageUrl;
},
/**
* Getter-setter for paused state of the view (true means
* paused, false means not.)
* @param {boolean} [state] the state to set
* @returns {boolean} the current state
*/
paused: function (state) {
if (arguments.length > 0 && state !== paused) {
paused = state;
// Switch to latest image
updateValues();
}
return paused;
}
};
}
return ImageryController;
}
);