move files from TerriaJS

lib/ViewModels/createAustraliaBaseMapOptions.js

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+'use strict';
+
+/*global require*/
+var ArcGisMapServerCatalogItem = require('../Models/ArcGisMapServerCatalogItem');
+var BaseMapViewModel = require('./BaseMapViewModel');
+
+var createAustraliaBaseMapOptions = function(terria) {
+    var result = [];
+
+    var australianTopo = new ArcGisMapServerCatalogItem(terria);
+    australianTopo.url = 'http://services.ga.gov.au/gis/rest/services/NationalMap_Colour_Topographic_Base_World_WM/MapServer';
+    australianTopo.opacity = 1.0;
+    australianTopo.isRequiredForRendering = true;
+    australianTopo.name = 'Australian Topography';
+    australianTopo.allowFeaturePicking = false;
+
+    result.push(new BaseMapViewModel({
+        image: require('../../wwwroot/images/australian-topo.png'),
+        catalogItem: australianTopo,
+        contrastColor: '#000000'
+    }));
+
+    return result;
+};
+
+module.exports = createAustraliaBaseMapOptions;

lib/ViewModels/selectBaseMap.js

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+'use strict';
+
+/*global require*/
+var defined = require('terriajs-cesium/Source/Core/defined');
+var knockout = require('terriajs-cesium/Source/ThirdParty/knockout');
+
+/**
+ * Selects a base map by name from a list of base map options.  The name is specified by `terria.baseMapName`, or,
+ * if that property is undefined, by the specified `defaultBaseMapName`.  In addition to setting `terria.baseMap`,
+ * this function subscribes to be notified when `terria.baseMapName` changes and updates `terria.baseMap`
+ * accordingly.  If a base map with the name is not in the `baseMaps` list, this method leaves the
+ * `terria.baseMap` property unmodified.
+ *
+ * @param {Terria} terria The TerriaJS application.
+ * @param {BaseMapViewModel[]} baseMaps The list of possible base maps.
+ * @param {string} defaultBaseMapName The name of the base map to search for.
+ * @param {boolean} useStoredPreference If true, look for and use a localStorage preference instead.
+ * @returns {BaseMapViewModel} The matching base map, or undefined if not found.
+ */
+var selectBaseMap = function(terria, baseMaps, defaultBaseMapName, useStoredPreference) {
+    function updateBaseMap(baseMapName) {
+        if (!defined(baseMapName)) {
+            return undefined;
+        }
+
+        for (var i = 0; i < baseMaps.length; ++i) {
+            if (baseMaps[i].catalogItem.name === baseMapName) {
+                terria.baseMap = baseMaps[i].catalogItem;
+                terria.baseMapContrastColor = baseMaps[i].contrastColor;
+                return terria.baseMap;
+            }
+        }
+        return undefined;
+    }
+
+    knockout.getObservable(terria, 'baseMapName').subscribe(function() {
+        updateBaseMap(terria.baseMapName);
+    });
+
+    if (baseMaps.length === 0) {
+        return undefined;
+    }
+
+    var baseMap;
+    if (useStoredPreference) {
+        baseMap = updateBaseMap(terria.getLocalProperty('basemap'));
+    }
+    baseMap = baseMap || updateBaseMap(terria.baseMapName) || updateBaseMap(defaultBaseMapName) || updateBaseMap(baseMaps[0].catalogItem.name);
+    return baseMap;
+
+};
+
+module.exports = selectBaseMap;