X-Git-Url: https://git.openstreetmap.org./rails.git/blobdiff_plain/9bcd049c98eb09e0b822710448e64dd5c266c498..6adcce4e5d75fa21dea85742fa36ee3b97247b01:/app/assets/javascripts/index.js

diff --git a/app/assets/javascripts/index.js b/app/assets/javascripts/index.js
index a19a6a61e..d84b8ae24 100644
--- a/app/assets/javascripts/index.js
+++ b/app/assets/javascripts/index.js
@@ -48,15 +48,25 @@ $(document).ready(function () {
       code: "Q",
       keyid: "mapquest",
       name: I18n.t("javascripts.map.base.mapquest")
+    }),
+    new L.OSM.HOT({
+      attribution: copyright + ". Tiles courtesy of <a href='http://hot.openstreetmap.org/' target='_blank'>Humanitarian OpenStreetMap Team</a>",
+      code: "H",
+      keyid: "hot",
+      name: I18n.t("javascripts.map.base.hot")
     })
   ];
 
   function updateLayers(params) {
     var layerParam = params.layers || "M";
+    var layersAdded = "";
 
     for (var i = layers.length - 1; i >= 0; i--) {
       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]);
       }
@@ -69,6 +79,12 @@ $(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'};