Themes: validate that a background layer actually exists, fix current-view button (GRB)

assets/themes/grb/grb.json

@@ -22,7 +22,8 @@
   "startZoom": 9,
   "startLat": 51.0249,
   "startLon": 4.026489,
-  "defaultBackgroundId": "AGIVFlandersGRB",
+  
+  "defaultBackgroundId": "osm",
   "credits": [
     "Pieter Vander Vennet"
   ],

assets/themes/trees/trees.json

@@ -63,7 +63,7 @@
   "startZoom": 8,
   "startLat": 50.642,
   "startLon": 4.482,
-  "defaultBackgroundId": "AGIV",
+  "defaultBackgroundId": "photo",
   "credits": [
     "Midgard"
   ],

package.json

@@ -1,6 +1,6 @@
 {
   "name": "mapcomplete",
-  "version": "0.36.10",
+  "version": "0.36.11",
   "repository": "https://github.com/pietervdvn/MapComplete",
   "description": "A small website to edit OSM easily",
   "bugs": "https://github.com/pietervdvn/MapComplete/issues",

src/Models/RasterLayers.ts

@@ -83,6 +83,15 @@ export class AvailableRasterLayers {
             })
         )
     }
+
+    public static allIds(): Set<string> {
+        const all: string[] = []
+        all.push(...AvailableRasterLayers.globalLayers.map((l) => l.properties.id))
+        all.push(...AvailableRasterLayers.EditorLayerIndex.map((l) => l.properties.id))
+        all.push(this.osmCarto.properties.id)
+        all.push(this.maptilerDefaultLayer.properties.id)
+        return new Set<string>(all)
+    }
 }
 
 export class RasterLayerUtils {

src/Models/ThemeConfig/Conversion/Validation.ts

@@ -21,6 +21,9 @@ import PresetConfig from "../PresetConfig"
 import { TagsFilter } from "../../../Logic/Tags/TagsFilter"
 import { Translatable } from "../Json/Translatable"
 import { ConversionContext } from "./ConversionContext"
+import * as eli from "../../../assets/editor-layer-index.json"
+import { AvailableRasterLayers } from "../../RasterLayers"
+import Back from "../../../assets/svg/Back.svelte"
 
 class ValidateLanguageCompleteness extends DesugaringStep<LayoutConfig> {
     private readonly _languages: string[]
@@ -124,6 +127,7 @@ export class DoesImageExist extends DesugaringStep<string> {
 }
 
 export class ValidateTheme extends DesugaringStep<LayoutConfigJson> {
+    private static readonly _availableLayers = AvailableRasterLayers.allIds()
     /**
      * The paths where this layer is originally saved. Triggers some extra checks
      * @private
@@ -260,6 +264,19 @@ export class ValidateTheme extends DesugaringStep<LayoutConfigJson> {
                 .err("The overpassURL is a string, use a list of strings instead. Wrap it with [ ]")
         }
 
+        if (json.defaultBackgroundId) {
+            const backgroundId = json.defaultBackgroundId
+
+            const isCategory =
+                backgroundId === "photo" || backgroundId === "map" || backgroundId === "osmbasedmap"
+
+            if (!isCategory && !ValidateTheme._availableLayers.has(backgroundId)) {
+                context
+                    .enter("defaultBackgroundId")
+                    .err("This layer ID is not known: " + backgroundId)
+            }
+        }
+
         return json
     }
 }
@@ -1465,7 +1482,7 @@ export class ValidateLayer extends Conversion<
             }
         }
 
-        for (let i = 0; i < json.presets.length; i++) {
+        for (let i = 0; i < json.presets?.length; i++) {
             const preset = json.presets[i]
             if (
                 preset.snapToLayer === undefined &&

src/Models/ThemeConfig/Json/LayerConfigJson.ts

@@ -145,7 +145,7 @@ export interface LayerConfigJson {
      * There are a few extra functions available. Refer to <a>Docs/CalculatedTags.md</a> for more information
      * The functions will be run in order, e.g.
      * [
- Not found...    *  "_max_overlap_m2=Math.max(...feat.overlapsWith("someOtherLayer").map(o => o.overlap))
+     *  "_max_overlap_m2=Math.max(...feat.overlapsWith("someOtherLayer").map(o => o.overlap))
      *  "_max_overlap_ratio=Number(feat._max_overlap_m2)/feat.area
      * ]
      *

src/Models/ThemeConfig/LayoutConfig.ts

@@ -314,6 +314,7 @@ export default class LayoutConfig implements LayoutInformation {
                 return layer
             }
         }
+        console.log("Fallthrough", this, tags)
         return undefined
     }
 }

src/UI/ThemeViewGUI.svelte

@@ -13,13 +13,7 @@
   import type { MapProperties } from "../Models/MapProperties"
   import Geosearch from "./BigComponents/Geosearch.svelte"
   import Translations from "./i18n/Translations"
-  import {
+  import { CogIcon, EyeIcon, HeartIcon, MenuIcon, XCircleIcon } from "@rgossiaux/svelte-heroicons/solid"
-    CogIcon,
-    EyeIcon,
-    HeartIcon,
-    MenuIcon,
-    XCircleIcon,
-  } from "@rgossiaux/svelte-heroicons/solid"
   import Tr from "./Base/Tr.svelte"
   import CommunityIndexView from "./BigComponents/CommunityIndexView.svelte"
   import FloatOver from "./Base/FloatOver.svelte"
@@ -72,8 +66,6 @@
   import FilterPanel from "./BigComponents/FilterPanel.svelte"
   import PrivacyPolicy from "./BigComponents/PrivacyPolicy.svelte"
   import { BBox } from "../Logic/BBox"
-  import { MapLibreAdaptor } from "./Map/MapLibreAdaptor.js"
-  import { QueryParameters } from "../Logic/Web/QueryParameters"
 
   export let state: ThemeViewState
   let layout = state.layout
@@ -100,8 +92,12 @@
     })
   })
 
-  let selectedLayer: Store<LayerConfig> = state.selectedElement.mapD((element) =>
+  let selectedLayer: Store<LayerConfig> = state.selectedElement.mapD((element) => {
-    state.layout.getMatchingLayer(element.properties)
+      if (element.properties.id.startsWith("current_view")) {
+        return currentViewLayer
+      }
+      return state.layout.getMatchingLayer(element.properties)
+    },
   )
   let currentZoom = state.mapProperties.zoom
   let showCrosshair = state.userRelatedState.showCrosshair
@@ -109,6 +105,7 @@
   let viewport: UIEventSource<HTMLDivElement> = new UIEventSource<HTMLDivElement>(undefined)
   let mapproperties: MapProperties = state.mapProperties
   state.mapProperties.installCustomKeyboardHandler(viewport)
+
   function updateViewport() {
     const rect = viewport.data?.getBoundingClientRect()
     if (!rect) {
@@ -142,7 +139,7 @@
   onDestroy(
     rasterLayer.addCallbackAndRunD((l) => {
       rasterLayerName = l.properties.name
-    })
+    }),
   )
   let previewedImage = state.previewedImage
 
@@ -228,7 +225,7 @@
     {#if currentViewLayer?.tagRenderings && currentViewLayer.defaultIcon()}
       <MapControlButton
         on:click={() => {
-          selectedElement.setData(state.currentView.features?.data?.[0])
+          state.selectedElement.setData(state.currentView.features?.data?.[0])
         }}
         on:keydown={forwardEventToMap}
       >