From 7098cd2cf3474cbc4f85cf30ccf427231e9ac7de Mon Sep 17 00:00:00 2001
From: Norbert Renner <norbert.renner@gmx.de>
Date: Wed, 27 May 2015 20:06:57 +0200
Subject: [PATCH] fix adding new waypoint after deleting the last

---
 js/plugin/Routing.js | 18 ++++++++++++++++++
 1 file changed, 18 insertions(+)

diff --git a/js/plugin/Routing.js b/js/plugin/Routing.js
index 8dc4761..45463a2 100644
--- a/js/plugin/Routing.js
+++ b/js/plugin/Routing.js
@@ -1,3 +1,9 @@
+L.Routing.Draw.prototype._hideTrailer = function() {
+  if (this._trailer.options.opacity !== 0.0) {
+    this._trailer.setStyle({opacity: 0.0});
+  }
+};
+
 BR.Routing = L.Routing.extend({
     options: {
         position: 'topright',
@@ -89,6 +95,18 @@ BR.Routing = L.Routing.extend({
             L.DomEvent.off(this._map._controlContainer, 'mouseover', hide, this);
         });
 
+        // Call show after deleting last waypoint, but hide trailer.
+        // Gets hidden in _catchWaypointEvent on waypoint mouseover, but 
+        // mouseout to show again never fires when deleted. Click handler 
+        // _onMouseClick aborts when hidden, so no waypoint can be added 
+        // although enabled.
+        this.on('waypoint:click', function() {
+            if (this._hidden && !this._parent._waypoints._first) {
+                this._show();
+                this._hideTrailer();
+            }
+        }, this._draw);
+
         // enable drawing mode
         this.draw(true);