[gnome-maps] Add altitude to map bubbles

[Jonas Danielsson <jonasdn src gnome org>]

commit 24446e5c73f1e2bb005b7354fd94a4e7530f8a7b
Author: Jonas Danielsson <jonas threetimestwo org>
Date:   Sun Feb 14 21:08:57 2016 +0100

    Add altitude to map bubbles

 src/osmEditDialog.js |    6 ++++++
 src/overpass.js      |    2 ++
 src/placeBubble.js   |    6 ++++++
 3 files changed, 14 insertions(+), 0 deletions(-)
---
diff --git a/src/osmEditDialog.js b/src/osmEditDialog.js
index be908b6..86cc10f 100644
--- a/src/osmEditDialog.js
+++ b/src/osmEditDialog.js
@@ -141,6 +141,12 @@ const OSM_FIELDS = [
         type: EditFieldType.INTEGER
     },
     {
+        name: _("Altitude"),
+        tag: 'ele',
+        type: EditFieldType.INTEGER,
+        hint: _("Elevation (height above sea level) of a point in metres.")
+    },
+    {
         name: _("Wheelchair access"),
         tag: 'wheelchair',
         type: EditFieldType.COMBO,
diff --git a/src/overpass.js b/src/overpass.js
index eb593fb..b276ccf 100644
--- a/src/overpass.js
+++ b/src/overpass.js
@@ -106,6 +106,8 @@ const Overpass = new Lang.Class({
             place.openingHours = element.tags.opening_hours;
         if (element.tags.internet_access)
             place.internetAccess = element.tags.internet_access;
+        if (element.tags.ele && place.location)
+            place.location.altitude = parseFloat(element.tags.ele);
     },
 
     _getQueryUrl: function(place) {
diff --git a/src/placeBubble.js b/src/placeBubble.js
index d332ad3..618938e 100644
--- a/src/placeBubble.js
+++ b/src/placeBubble.js
@@ -128,6 +128,12 @@ const PlaceBubble = new Lang.Class({
                                    info: place.population });
         }
 
+        if (place.location.altitude > 0) {
+            let alt  = place.location.altitude;
+            expandedContent.push({ label: _("Altitude:"),
+                                   info: Utils.prettyDistance(alt, true) });
+        }
+
         if (place.openingHours) {
             expandedContent.push({ label: _("Opening hours:"),
                                    info: place.openingHoursTranslated });