Refactor embed.js.erb with layers.yml

[rails.git] / app / assets / javascripts / leaflet.map.js

diff --git a/app/assets/javascripts/leaflet.map.js b/app/assets/javascripts/leaflet.map.js
index 5e6112fc057e16ec7566a83ea8a8e2e0b52a4680..10ce9471580b038c776c232c3a953c6d499c5559 100644 (file)
--- a/app/assets/javascripts/leaflet.map.js
+++ b/app/assets/javascripts/leaflet.map.js
@@ -32,12 +32,17 @@ L.OSM.Map = L.Map.extend({
           layerOptions.apikey = OSM[value];
         } else if (property === "leafletOsmId") {
           layerConstructor = L.OSM[value];
+        } else if (property === "leafletOsmDarkId" && OSM.isDarkMap() && L.OSM[value]) {
+          layerConstructor = L.OSM[value];
         } else {
           layerOptions[property] = value;
         }
       }
 
       const layer = new layerConstructor(layerOptions);
+      layer.on("add", () => {
+        this.fire("baselayerchange", { layer: layer });
+      });
       this.baseLayers.push(layer);
     }
 
@@ -51,8 +56,14 @@ L.OSM.Map = L.Map.extend({
       pane: "overlayPane",
       code: "G"
     });
+    this.gpsLayer.on("add", () => {
+      this.fire("overlayadd", { layer: this.gpsLayer });
+    }).on("remove", () => {
+      this.fire("overlayremove", { layer: this.gpsLayer });
+    });
 
-    this.on("layeradd", function (event) {
+
+    this.on("baselayerchange", function (event) {
       if (this.baseLayers.indexOf(event.layer) >= 0) {
         this.setMaxZoom(event.layer.options.maxZoom);
       }
@@ -104,19 +115,19 @@ L.OSM.Map = L.Map.extend({
   },
 
   updateLayers: function (layerParam) {
-    var layers = layerParam || "M",
-        layersAdded = "";
-
-    for (var i = this.baseLayers.length - 1; i >= 0; i--) {
-      if (layers.indexOf(this.baseLayers[i].options.code) >= 0) {
-        this.addLayer(this.baseLayers[i]);
-        layersAdded = layersAdded + this.baseLayers[i].options.code;
-      } else if (i === 0 && layersAdded === "") {
-        this.addLayer(this.baseLayers[i]);
-      } else {
-        this.removeLayer(this.baseLayers[i]);
+    const oldBaseLayer = this.getMapBaseLayer();
+    let newBaseLayer;
+
+    for (const layer of this.baseLayers) {
+      if (!newBaseLayer || layerParam.includes(layer.options.code)) {
+        newBaseLayer = layer;
       }
     }
+
+    if (newBaseLayer !== oldBaseLayer) {
+      if (oldBaseLayer) this.removeLayer(oldBaseLayer);
+      if (newBaseLayer) this.addLayer(newBaseLayer);
+    }
   },
 
   getLayersCode: function () {
@@ -295,12 +306,13 @@ L.OSM.Map = L.Map.extend({
       }
 
       if (callback) callback(this._objectLayer.getBounds());
+      this.fire("overlayadd", { layer: this._objectLayer });
     } else { // element handled by L.OSM.DataLayer
       var map = this;
       this._objectLoader = $.ajax({
         url: OSM.apiUrl(object),
-        dataType: "xml",
-        success: function (xml) {
+        dataType: "json",
+        success: function (data) {
           map._object = object;
 
           map._objectLayer = new L.OSM.DataLayer(null, {
@@ -312,22 +324,21 @@ L.OSM.Map = L.Map.extend({
             }
           });
 
-          map._objectLayer.interestingNode = function (node, ways, relations) {
+          map._objectLayer.interestingNode = function (node, wayNodes, relationNodes) {
             if (object.type === "node") {
               return true;
             } else if (object.type === "relation") {
-              for (var i = 0; i < relations.length; i++) {
-                if (relations[i].members.indexOf(node) !== -1) return true;
-              }
+              return Boolean(relationNodes[node.id]);
             } else {
               return false;
             }
           };
 
-          map._objectLayer.addData(xml);
+          map._objectLayer.addData(data);
           map._objectLayer.addTo(map);
 
           if (callback) callback(map._objectLayer.getBounds());
+          map.fire("overlayadd", { layer: map._objectLayer });
         }
       });
     }
@@ -337,6 +348,7 @@ L.OSM.Map = L.Map.extend({
     this._object = null;
     if (this._objectLoader) this._objectLoader.abort();
     if (this._objectLayer) this.removeLayer(this._objectLayer);
+    this.fire("overlayremove", { layer: this._objectLayer });
   },
 
   getState: function () {
@@ -388,6 +400,14 @@ L.extend(L.Icon.Default.prototype, {
   }
 });
 
+OSM.isDarkMap = function () {
+  var mapTheme = $("body").attr("data-map-theme");
+  if (mapTheme) return mapTheme === "dark";
+  var siteTheme = $("html").attr("data-bs-theme");
+  if (siteTheme) return siteTheme === "dark";
+  return window.matchMedia("(prefers-color-scheme: dark)").matches;
+};
+
 OSM.getUserIcon = function (url) {
   return L.icon({
     iconUrl: url || OSM.MARKER_RED,