Enable/disable some context-menu options conditional on zoom

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

diff --git a/app/assets/javascripts/leaflet.note.js b/app/assets/javascripts/leaflet.note.js
index 77fb9baff90f3afc6936dfdd7d4a599fda8daf30..8451e9b72eb3742c3d4a08cfcfa708641d45a23b 100644 (file)
--- a/app/assets/javascripts/leaflet.note.js
+++ b/app/assets/javascripts/leaflet.note.js
@@ -5,13 +5,25 @@ L.OSM.note = function (options) {
     var $container = $('<div>')
       .attr('class', 'control-note');
 
-    $('<a>')
+    var link = $('<a>')
       .attr('class', 'control-button')
       .attr('href', '#')
-      .attr('title', I18n.t('javascripts.notes.new.add'))
       .html('<span class="icon note"></span>')
       .appendTo($container);
 
+    map.on('zoomend', update);
+
+    function update() {
+      var disabled = OSM.STATUS === "database_offline" || map.getZoom() < 12;
+      link
+        .toggleClass('disabled', disabled)
+        .attr('data-original-title', I18n.t(disabled ?
+          'javascripts.site.createnote_disabled_tooltip' :
+          'javascripts.site.createnote_tooltip'));
+    }
+
+    update();
+
     return $container[0];
   };