[gnome-maps] mapView: Add ways to set different map types

[Zeeshan Ali Khattak <zeeshanak src gnome org>]

commit 8fa04d874111c04c7e87bb3ed76f01ad651a3514
Author: Zeeshan Ali (Khattak) <zeeshanak gnome org>
Date:   Fri Apr 5 05:31:24 2013 +0300

    mapView: Add ways to set different map types
    
    This also implies that we now use 'mapquest' rather than the default
    'mapnik' as the street view.

 src/mapView.js |   16 ++++++++++++++++
 1 files changed, 16 insertions(+), 0 deletions(-)
---
diff --git a/src/mapView.js b/src/mapView.js
index f68ef19..3513583 100644
--- a/src/mapView.js
+++ b/src/mapView.js
@@ -32,6 +32,14 @@ const Application = imports.application;
 const Utils = imports.utils;
 const _ = imports.gettext.gettext;
 
+const MapType = {
+   STREET:  Champlain.MAP_SOURCE_OSM_MAPQUEST,
+   /* This should be CHAMPLAIN_MAP_SOURCE_OAM but that currently causes a crash: bug#697304 */
+   TERRAIN: Champlain.MAP_SOURCE_MFF_RELIEF,
+   CYCLING: Champlain.MAP_SOURCE_OSM_CYCLE_MAP,
+   TRANSIT: Champlain.MAP_SOURCE_OSM_TRANSPORT_MAP
+}
+
 const MapView = new Lang.Class({
     Name: 'MapView',
 
@@ -45,9 +53,17 @@ const MapView = new Lang.Class({
         this._markerLayer.set_selection_mode(Champlain.SelectionMode.SINGLE);
         this._view.add_layer(this._markerLayer);
 
+        this._factory = Champlain.MapSourceFactory.dup_default();
+        this.setMapType(MapType.STREET);
+
         this._gotoUserLocation();
     },
 
+    setMapType: function(mapType) {
+        let source = this._factory.create_cached_source(mapType);
+        this._view.set_map_source(source);
+    },
+
     geocodeSearch: function(string) {
         let forward = Geocode.Forward.new_for_string(string);