Add working clustering!

Customizations/JSON/LayoutConfig.ts

@@ -24,6 +24,8 @@ export default class LayoutConfig {
     public readonly roamingRenderings: TagRenderingConfig[];
     public readonly defaultBackgroundId?: string;
     public readonly layers: LayerConfig[];
+    public readonly clustering: {  };
+    
     public readonly hideFromOverview: boolean;
     public readonly enableUserBadge: boolean;
     public readonly enableShareScreen: boolean;
@@ -82,6 +84,18 @@ export default class LayoutConfig {
                 }
             return new LayerConfig(layer, this.roamingRenderings, `${this.id}.layers[${i}]`);
         });
+
+
+        this.clustering = json.clustering ?? false;
+
+        if(this.clustering){
+            for (const layer of this.layers) {
+                if(layer.wayHandling !== LayerConfig.WAYHANDLING_CENTER_ONLY){
+                    throw "In order to allow clustering, every layer must be set to CENTER_ONLY";
+                }
+            }
+        }
+        
         this.hideFromOverview = json.hideFromOverview ?? false;
 
         this.enableUserBadge = json.enableUserBadge ?? true;

Customizations/JSON/LayoutConfigJson.ts

@@ -123,6 +123,13 @@ export interface LayoutConfigJson {
      */
     layers: (LayerConfigJson | string)[],
 
+    /**
+     * If defined, data will be clustered.
+     */
+    clustering: { 
+        maxZoom?: number
+    },
+
     /**
      * The URL of a custom CSS stylesheet to modify the layout
      */

InitUiElements.ts

@@ -358,7 +358,8 @@ export class InitUiElements {
             State.state.availableBackgroundLayers, State.state.layoutToUse.map((layout: LayoutConfig) => layout.defaultBackgroundId));
 
 
-        const attr = new Attribution(State.state.locationControl, State.state.osmConnection.userDetails, State.state.layoutToUse, State.state.leafletMap);
+        const attr = new Attribution(State.state.locationControl, State.state.osmConnection.userDetails, State.state.layoutToUse, 
+            State.state.leafletMap);
         const bm = new Basemap("leafletDiv",
             State.state.locationControl,
             State.state.backgroundLayer,

Logic/FeatureSource/FilteringFeatureSource.ts

@@ -40,14 +40,11 @@ export default class FilteringFeatureSource implements FeatureSource {
         for (const layer of layers) {
             layerDict[layer.layerDef.id] = layer;
             layer.isDisplayed.addCallback(() => {
-                console.log("Updating due to layer change")
                 update()})
         }
         upstream.features.addCallback(() => {
-            console.log("Updating due to upstream change")
             update()});
         location.map(l => l.zoom).addCallback(() => {
-            console.log("UPdating due to zoom level change")
             update();});
 
 

UI/BigComponents/Attribution.ts

@@ -8,18 +8,19 @@ import Constants from "../../Models/Constants";
 import LayoutConfig from "../../Customizations/JSON/LayoutConfig";
 import Loc from "../../Models/Loc";
 import LeafletMap from "../../Models/LeafletMap";
+import * as L from "leaflet"
 
 export default class Attribution extends UIElement {
     
     private readonly _location: UIEventSource<Loc>;
     private readonly _layoutToUse: UIEventSource<LayoutConfig>;
     private readonly _userDetails: UIEventSource<UserDetails>;
-    private readonly _leafletMap: UIEventSource<LeafletMap>;
+    private readonly _leafletMap: UIEventSource<L.Map>;
 
     constructor(location: UIEventSource<Loc>,
                 userDetails: UIEventSource<UserDetails>,
                 layoutToUse: UIEventSource<LayoutConfig>,
-                leafletMap: UIEventSource<LeafletMap>) {
+                leafletMap: UIEventSource<L.Map>) {
         super(location);
         this._layoutToUse = layoutToUse;
         this.ListenTo(layoutToUse);

UI/ShowDataLayer.ts

@@ -3,12 +3,15 @@
  */
 import {UIEventSource} from "../Logic/UIEventSource";
 import * as L from "leaflet"
+import "leaflet.markercluster"
 import LayerConfig from "../Customizations/JSON/LayerConfig";
 import State from "../State";
 import LazyElement from "./Base/LazyElement";
 import Hash from "../Logic/Web/Hash";
 import {GeoOperations} from "../Logic/GeoOperations";
 import FeatureInfoBox from "./Popup/FeatureInfoBox";
+import LayoutConfig from "../Customizations/JSON/LayoutConfig";
+
 
 export default class ShowDataLayer {
 
@@ -17,15 +20,14 @@ export default class ShowDataLayer {
 
     constructor(features: UIEventSource<{ feature: any, freshness: Date }[]>,
                 leafletMap: UIEventSource<L.Map>,
-                layers: { layerDef: LayerConfig, isDisplayed: UIEventSource<boolean> }[]) {
+                layoutToUse: LayoutConfig) {
         this._leafletMap = leafletMap;
         const self = this;
-
         let oldGeoLayer: L.Layer = undefined;
 
         this._layerDict = {};
-        for (const layer of layers) {
-            this._layerDict[layer.layerDef.id] = layer.layerDef;
+        for (const layer of layoutToUse.layers) {
+            this._layerDict[layer.id] = layer;
         }
 
         function update() {
@@ -38,7 +40,13 @@ export default class ShowDataLayer {
             const mp = leafletMap.data;
 
             const feats = features.data.map(ff => ff.feature);
-            const geoLayer = self.CreateGeojsonLayer(feats);
+            let geoLayer = self.CreateGeojsonLayer(feats)
+            const cl = window["L"];
+            const cluster = cl.markerClusterGroup();
+            cluster.addLayer(geoLayer);
+            geoLayer = cluster;
+
+
             if (oldGeoLayer) {
                 mp.removeLayer(oldGeoLayer);
             }

UI/SpecialVisualizations.ts

@@ -171,7 +171,6 @@ export default class SpecialVisualizations {
                 }],
                 constr: (state: State,tags, args) => {
                     const tgs = tags.data;
-                    console.log("Args[0]", args[0])
                     let subject = tgs.name ?? "";
                     if (args[0] !== undefined && args[0] !== "") {
                         subject = args[0];

index.html

@@ -16,6 +16,8 @@
     <link rel="stylesheet" href="./css/imageUploadFlow.css"/>
     <link rel="stylesheet" href="./css/fullscreenmessagebox.css"/>
     <link href="css/ReviewElement.css" rel="stylesheet"/>
+    <link rel="stylesheet" href="vendor/MarkerCluster.css"/>
+    <link rel="stylesheet" href="vendor/MarkerCluster.Default.css"/>
     <!-- $$$CUSTOM-CSS -->
     <link rel="manifest" href="./manifest.manifest">
     <link rel="icon" href="assets/svg/add.svg" sizes="any" type="image/svg+xml">

package-lock.json

@@ -3581,6 +3581,14 @@
         "@types/geojson": "*"
       }
     },
+    "@types/leaflet-markercluster": {
+      "version": "1.0.3",
+      "resolved": "https://registry.npmjs.org/@types/leaflet-markercluster/-/leaflet-markercluster-1.0.3.tgz",
+      "integrity": "sha1-ZBUb5FP2SQ6HUVAEgt65YQZOeCw=",
+      "requires": {
+        "@types/leaflet": "*"
+      }
+    },
     "@types/leaflet-providers": {
       "version": "1.2.0",
       "resolved": "https://registry.npmjs.org/@types/leaflet-providers/-/leaflet-providers-1.2.0.tgz",

package.json

@@ -29,6 +29,7 @@
   "author": "pietervdvn",
   "license": "GPL",
   "dependencies": {
+    "@types/leaflet-markercluster": "^1.0.3",
     "@types/leaflet-providers": "^1.2.0",
     "@types/leaflet.markercluster": "^1.4.3",
     "country-language": "^0.1.7",

vendor/MarkerCluster.Default.css

@@ -0,0 +1,60 @@
+.marker-cluster-small {
+	background-color: rgba(181, 226, 140, 0.6);
+	}
+.marker-cluster-small div {
+	background-color: rgba(110, 204, 57, 0.6);
+	}
+
+.marker-cluster-medium {
+	background-color: rgba(241, 211, 87, 0.6);
+	}
+.marker-cluster-medium div {
+	background-color: rgba(240, 194, 12, 0.6);
+	}
+
+.marker-cluster-large {
+	background-color: rgba(253, 156, 115, 0.6);
+	}
+.marker-cluster-large div {
+	background-color: rgba(241, 128, 23, 0.6);
+	}
+
+	/* IE 6-8 fallback colors */
+.leaflet-oldie .marker-cluster-small {
+	background-color: rgb(181, 226, 140);
+	}
+.leaflet-oldie .marker-cluster-small div {
+	background-color: rgb(110, 204, 57);
+	}
+
+.leaflet-oldie .marker-cluster-medium {
+	background-color: rgb(241, 211, 87);
+	}
+.leaflet-oldie .marker-cluster-medium div {
+	background-color: rgb(240, 194, 12);
+	}
+
+.leaflet-oldie .marker-cluster-large {
+	background-color: rgb(253, 156, 115);
+	}
+.leaflet-oldie .marker-cluster-large div {
+	background-color: rgb(241, 128, 23);
+}
+
+.marker-cluster {
+	background-clip: padding-box;
+	border-radius: 20px;
+	}
+.marker-cluster div {
+	width: 30px;
+	height: 30px;
+	margin-left: 5px;
+	margin-top: 5px;
+
+	text-align: center;
+	border-radius: 15px;
+	font: 12px "Helvetica Neue", Arial, Helvetica, sans-serif;
+	}
+.marker-cluster span {
+	line-height: 30px;
+	}

vendor/MarkerCluster.css

@@ -0,0 +1,14 @@
+.leaflet-cluster-anim .leaflet-marker-icon, .leaflet-cluster-anim .leaflet-marker-shadow {
+	-webkit-transition: -webkit-transform 0.3s ease-out, opacity 0.3s ease-in;
+	-moz-transition: -moz-transform 0.3s ease-out, opacity 0.3s ease-in;
+	-o-transition: -o-transform 0.3s ease-out, opacity 0.3s ease-in;
+	transition: transform 0.3s ease-out, opacity 0.3s ease-in;
+}
+
+.leaflet-cluster-spider-leg {
+	/* stroke-dashoffset (duration and function) should match with leaflet-marker-icon transform in order to track it exactly */
+	-webkit-transition: -webkit-stroke-dashoffset 0.3s ease-out, -webkit-stroke-opacity 0.3s ease-in;
+	-moz-transition: -moz-stroke-dashoffset 0.3s ease-out, -moz-stroke-opacity 0.3s ease-in;
+	-o-transition: -o-stroke-dashoffset 0.3s ease-out, -o-stroke-opacity 0.3s ease-in;
+	transition: stroke-dashoffset 0.3s ease-out, stroke-opacity 0.3s ease-in;
+}