[gnome-maps] openTripPlanner: Check for found rout in _fetchRoute()

[Marcus Lundblad <mlundblad src gnome org>]

commit f061b4e0d59aa79121a3e727b331fdba38a4582a
Author: Marcus Lundblad <ml update uu se>
Date:   Tue Sep 24 22:01:19 2019 +0200

    openTripPlanner: Check for found rout in _fetchRoute()
    
    After the change to remove support for
    looking up supported routers from the server,
    the case where no suitable transit stop was found
    was broken. Fix with a check in the callback.
    
    Fixes #211

 src/transitplugins/openTripPlanner.js | 32 ++++++++++++++++++--------------
 1 file changed, 18 insertions(+), 14 deletions(-)
---
diff --git a/src/transitplugins/openTripPlanner.js b/src/transitplugins/openTripPlanner.js
index 2f6e945..346bb8f 100644
--- a/src/transitplugins/openTripPlanner.js
+++ b/src/transitplugins/openTripPlanner.js
@@ -506,22 +506,26 @@ var OpenTripPlanner = class OpenTripPlanner {
         let points = this._query.filledPoints;
 
         this._fetchRoutes((route) => {
-            let itineraries = [];
-            let plan = route.plan;
-
-            if (plan && plan.itineraries) {
-                itineraries =
-                    itineraries.concat(
-                        this._createItineraries(plan.itineraries));
-            }
+            if (route) {
+                let itineraries = [];
+                let plan = route.plan;
+
+                if (plan && plan.itineraries) {
+                    itineraries =
+                        itineraries.concat(
+                            this._createItineraries(plan.itineraries));
+                }
 
-            if (itineraries.length === 0) {
-                /* don't reset query points, unlike for turn-based
-                 * routing, since options and timeing might influence
-                 * results */
-                this._noRouteFound();
+                if (itineraries.length === 0) {
+                    /* don't reset query points, unlike for turn-based
+                     * routing, since options and timeing might influence
+                     * results */
+                    this._noRouteFound();
+                } else {
+                    this._recalculateItineraries(itineraries);
+                }
             } else {
-                this._recalculateItineraries(itineraries);
+                this._noRouteFound();
             }
         });
     }