Add shortcut to delete last point

Press 'Z' to undo adding the last point.

js/index.js

@@ -84,7 +84,7 @@
         var deletePointButton = L.easyButton(
             '<span><i class="fa fa-caret-left"></i><i class="fa fa-map-marker" style="margin-left: 1px; color: gray;"></i></span>',
             function() {
-                routing.removeWaypoint(routing.getLast(), function(err, data) {});
+                routing.deleteLastPoint();
             },
             i18next.t('map.delete-last-point')
         );

js/plugin/Routing.js

@@ -29,7 +29,8 @@ BR.Routing = L.Routing.extend({
                 enable: 68, // char code for 'd'
                 disable: 27 // char code for 'ESC'
             },
-            reverse: 82 // char code for 'r'
+            reverse: 82, // char code for 'r'
+            deleteLastPoint: 90 // char code for 'z'
         }
     },
 
@@ -352,6 +353,8 @@ BR.Routing = L.Routing.extend({
             this._draw.enable();
         } else if (e.keyCode === this.options.shortcut.reverse) {
             this.reverse();
+        } else if (e.keyCode === this.options.shortcut.deleteLastPoint) {
+            this.deleteLastPoint();
         }
     },
 
@@ -374,6 +377,10 @@ BR.Routing = L.Routing.extend({
         this.setWaypoints(waypoints);
     },
 
+    deleteLastPoint: function() {
+        this.removeWaypoint(this.getLast(), function(err, data) {});
+    },
+
     _removeDistanceMarkers: function() {
         if (this._map && this._distanceMarkers) {
             this._map.removeLayer(this._distanceMarkers);

locales/en.json

@@ -82,7 +82,7 @@
     "clear-route": "Clear route data",
     "copyright": "Copyright",
     "cycling": "Cycling",
-    "delete-last-point": "Delete last point",
+    "delete-last-point": "Delete last point (Z key)",
     "delete-nogo-areas": "Delete all no-go areas",
     "delete-pois": "Delete all points of interest",
     "delete-route": "Delete route",