Zoom out when switching to a layer with a lower maxZoom

[rails.git] / app / assets / javascripts / index.js

diff --git a/app/assets/javascripts/index.js b/app/assets/javascripts/index.js
index 95771a4b2ae4645416ac0e26bcfb3f9e229330c5..7f4887469c6c8f13ef8702430792446ced01d954 100644 (file)
--- a/app/assets/javascripts/index.js
+++ b/app/assets/javascripts/index.js
@@ -59,14 +59,12 @@ $(document).ready(function () {
       if (layerParam.indexOf(layers[i].options.code) >= 0) {
         map.addLayer(layers[i]);
         layersAdded = layersAdded + layers[i].options.code;
+      } else if (i == 0 && layersAdded == "") {
+        map.addLayer(layers[i]);
       } else {
         map.removeLayer(layers[i]);
       }
     }
-
-    if (layersAdded == "") {
-      map.addLayer(layers[0]);
-    }
   }
 
   updateLayers(params);
@@ -75,6 +73,12 @@ $(document).ready(function () {
     updateLayers(OSM.mapParams());
   });
 
+  map.on("baselayerchange", function (e) {
+    if (map.getZoom() > e.layer.options.maxZoom) {
+      map.setView(map.getCenter(), e.layer.options.maxZoom, { reset: true });
+    }
+  });
+
   map.noteLayer = new L.LayerGroup();
   map.noteLayer.options = {code: 'N'};