More refactoring of the featuresources, cleanup, small changes

UI/ShowDataLayer/ShowDataMultiLayer.ts

@@ -0,0 +1,22 @@
+import {UIEventSource} from "../Logic/UIEventSource";
+import FilteredLayer from "../Models/FilteredLayer";
+import ShowDataLayer, {ShowDataLayerOptions} from "./ShowDataLayer/ShowDataLayer";
+import PerLayerFeatureSourceSplitter from "../Logic/FeatureSource/PerLayerFeatureSourceSplitter";
+
+/**
+ * SHows geojson on the given leaflet map, but attempts to figure out the correct layer first
+ */
+export default class ShowDataMultiLayer {
+    constructor(options: ShowDataLayerOptions & { layers: UIEventSource<FilteredLayer[]> }) {
+
+        new PerLayerFeatureSourceSplitter(options.layers, (perLayer => {
+                const newOptions = {
+                    layerToShow: perLayer.layer.layerDef,
+                    ...options
+                }
+                new ShowDataLayer(newOptions)
+            }),
+            options.features)
+
+    }
+}