Feature: add Americana background style, fix #1204

Models/RasterLayerProperties.ts

@@ -19,6 +19,7 @@ export interface RasterLayerProperties {
 
     readonly url: string
     readonly category?: string | EliCategory
+    readonly type?: "vector" | string
 
     readonly attribution?: {
         readonly url?: string

Models/RasterLayers.ts

@@ -44,6 +44,7 @@ export class AvailableRasterLayers {
             url: "https://api.maptiler.com/maps/15cc8f61-0353-4be6-b8da-13daea5f7432/style.json?key=GvoVAJgu46I5rZapJuAy",
             category: "osmbasedmap",
             id: "maptiler",
+            type: "vector",
             attribution: {
                 text: "Maptiler",
                 url: "https://www.maptiler.com/copyright/"
@@ -52,6 +53,22 @@ export class AvailableRasterLayers {
         geometry: BBox.global.asGeometry(),
     }
 
+    public static readonly americana: RasterLayerPolygon = {
+        type: "Feature",
+        properties: {
+            name: "Americana",
+            url: "https://zelonewolf.github.io/openstreetmap-americana/style.json",
+            category: "osmbasedmap",
+            id: "americana",
+            type: "vector",
+            attribution: {
+                text: "Americana",
+                url: "https://github.com/ZeLonewolf/openstreetmap-americana/"
+            }
+        },
+        geometry: BBox.global.asGeometry(),
+    }
+
     public static layersAvailableAt(
         location: Store<{ lon: number; lat: number }>
     ): Store<RasterLayerPolygon[]> {
@@ -74,6 +91,7 @@ export class AvailableRasterLayers {
                     return GeoOperations.inside(lonlat, eliPolygon)
                 })
                 matching.unshift(AvailableRasterLayers.osmCarto)
+                matching.unshift(AvailableRasterLayers.americana)
                 matching.unshift(AvailableRasterLayers.maplibre)
                 matching.push(...AvailableRasterLayers.globalLayers)
                 return matching
@@ -133,7 +151,7 @@ export interface EditorLayerIndexProperties extends RasterLayerProperties {
      * Whether the imagery name should be translated
      */
     readonly i18n?: boolean
-    readonly type: "tms" | "wms" | "bing" | "scanex" | "wms_endpoint" | "wmts"
+    readonly type: "tms" | "wms" | "bing" | "scanex" | "wms_endpoint" | "wmts" | "vector" /* Vector is not actually part of the ELI-spec, we add it for vector layers */
     /**
      * A rough categorisation of different types of layers. See https://github.com/osmlab/editor-layer-index/blob/gh-pages/CONTRIBUTING.md#categories for a description of the individual categories.
      */

UI/Map/MapLibreAdaptor.ts

@@ -379,6 +379,12 @@ export class MapLibreAdaptor implements MapProperties, ExportableMap {
             return
         }
 
+        if(background.type === "vector"){
+            console.log("Background layer is vector")
+            map.setStyle(background.url)
+            return
+        }
+
         map.addSource(background.id, MapLibreAdaptor.prepareWmsSource(background))
 
         map.resize()