Add Leaflet attribution control

js/map/Map.js

@@ -9,6 +9,7 @@ import UrlParamChangeNotifier from '../url/UrlParamChangeNotifier';
 
 import BaseLayers from './BaseLayers';
 import Overlays from './Overlays';
+import AttributionControl from './controls/AttributionControl';
 import ZoomControl from './controls/ZoomControl';
 import LocateControl from './controls/LocateControl';
 import ScaleControl from './controls/ScaleControl';
@@ -34,6 +35,7 @@ export default class Map {
 
 		this.map = L.map(mapContainerHtmlElementId, {
 			zoomControl: false,
+			attributionControl: false,
 		});
 
 		this.id = mapContainerHtmlElementId;
@@ -50,6 +52,8 @@ export default class Map {
 
 		this.map.addControl(new ScaleControl().getMapControl());
 
+		this.map.addControl(new AttributionControl().getMapControl());
+
 		this.map.addControl(new LoadingIndicatorControl().getMapControl());
 
 		// Create map controls for layers and overlays

js/map/controls/AttributionControl.js

@@ -0,0 +1,13 @@
+import L from 'leaflet';
+
+import MapControl from './MapControl';
+
+export default class AttributionControl extends MapControl {
+	constructor() {
+		const attributionControl = L.control.attribution({
+			prefix: '<a href="https://leafletjs.com" title="A JavaScript library for interactive maps">Leaflet</a>',
+		});
+
+		super(attributionControl);
+	}
+}