Improved noteLayer and dataLayer availability, closes #65

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

diff --git a/app/assets/javascripts/leaflet.layers.js b/app/assets/javascripts/leaflet.layers.js
index 2bb4c5c1b44f008cba6f3d115c6c20c8e652af35..7703529b8799e35d94b06ddefc1fb9d4e60705d1 100644 (file)
--- a/app/assets/javascripts/leaflet.layers.js
+++ b/app/assets/javascripts/leaflet.layers.js
@@ -120,8 +120,13 @@ L.OSM.layers = function(options) {
       var list = $('<ul>')
         .appendTo(overlaySection);
 
-      function addOverlay(layer, name) {
+      function addOverlay(layer, name, maxArea) {
+        var refName = name.split(' ').join('_').toLowerCase();
         var item = $('<li>')
+          .attr('class', refName)
+          .tooltip({
+            placement: 'top'
+          })
           .appendTo(list);
 
         var label = $('<label>')
@@ -146,10 +151,18 @@ L.OSM.layers = function(options) {
         map.on('layeradd layerremove', function() {
           input.prop('checked', map.hasLayer(layer));
         });
+
+        map.on('zoomend', function() {
+          var disabled = map.getBounds().getSize() >= maxArea;
+          $(input).prop('disabled', disabled);
+          $(item).attr('class', disabled ? 'disabled' : '');
+          item.attr('data-original-title', disabled ?
+            I18n.t('javascripts.site.' + refName + '_zoom_in_tooltip') : '');
+        });
       }
 
-      addOverlay(map.noteLayer, I18n.t('javascripts.map.layers.notes'));
-      addOverlay(map.dataLayer, I18n.t('javascripts.map.layers.data'));
+      addOverlay(map.noteLayer, I18n.t('javascripts.map.layers.notes'), OSM.MAX_NOTE_REQUEST_AREA);
+      addOverlay(map.dataLayer, I18n.t('javascripts.map.layers.data'), OSM.MAX_REQUEST_AREA);
     }
 
     options.sidebar.addPane($ui);
@@ -158,6 +171,7 @@ L.OSM.layers = function(options) {
       e.stopPropagation();
       e.preventDefault();
       options.sidebar.togglePane($ui, button);
+      $('.leaflet-control .control-button').tooltip('hide');
     }
 
     return $container[0];