[gnome-maps/wip/mlundblad/airplane-transit-mode] openTripPlanner: Handle airplane mode option

[Marcus Lundblad <mlundblad src gnome org>]

commit 93eddee53ac8c004a248ff516a49946de023cad7
Author: Marcus Lundblad <ml update uu se>
Date:   Mon Sep 30 22:58:42 2019 +0200

    openTripPlanner: Handle airplane mode option
    
    Add support for filtering on the airplane as
    an allowed transit mode.

 src/transitplugins/openTripPlanner.js | 3 +++
 1 file changed, 3 insertions(+)
---
diff --git a/src/transitplugins/openTripPlanner.js b/src/transitplugins/openTripPlanner.js
index 2d48f9b..c8c0ad6 100644
--- a/src/transitplugins/openTripPlanner.js
+++ b/src/transitplugins/openTripPlanner.js
@@ -28,6 +28,7 @@ const Soup = imports.gi.Soup;
 const Application = imports.application;
 const EPAF = imports.epaf;
 const HTTP = imports.http;
+const HVT = imports.hvt;
 const Location = imports.location;
 const Place = imports.place;
 const Route = imports.route;
@@ -155,6 +156,8 @@ var OpenTripPlanner = class OpenTripPlanner {
             return 'BUS';
         case TransitPlan.RouteType.FERRY:
             return 'FERRY';
+        case HVT.AIR_SERVICE:
+            return 'AIRPLANE';
         default:
             throw new Error('unhandled route type');
         }