From a6fa8cc273017c2673d6d76dae7f5ac811c2027d Mon Sep 17 00:00:00 2001
From: Tom Hughes <tom@compton.nu>
Date: Mon, 27 Feb 2017 13:23:27 +0000
Subject: [PATCH] Update iD frame parameters if the parent URL changes

Fixes #1468
---
 app/views/site/_id.html.erb | 35 +++++++++++++++++++++++------------
 1 file changed, 23 insertions(+), 12 deletions(-)

diff --git a/app/views/site/_id.html.erb b/app/views/site/_id.html.erb
index d93ee091e..d582028f8 100644
--- a/app/views/site/_id.html.erb
+++ b/app/views/site/_id.html.erb
@@ -5,20 +5,24 @@
   <script>
     var params = {};
 
-    var mapParams = OSM.mapParams();
-    if (mapParams.object) {
-      params.id = mapParams.object.type[0] + mapParams.object.id;
-      mapParams = OSM.parseHash(location.hash);
-      if (mapParams.center) {
-        params.map = mapParams.zoom + '/' + mapParams.center.lat + '/' + mapParams.center.lng;
+    function getParams(params) {
+      var mapParams = OSM.mapParams();
+      if (mapParams.object) {
+        params.id = mapParams.object.type[0] + mapParams.object.id;
+        mapParams = OSM.parseHash(location.hash);
+        if (mapParams.center) {
+          params.map = mapParams.zoom + '/' + mapParams.center.lat + '/' + mapParams.center.lng;
+        }
+      } else {
+        params.map = (mapParams.zoom || 17) + '/' + mapParams.lat + '/' + mapParams.lon;
       }
-    } else {
+    }
+
+    getParams(params);
+
 <% if @lat && @lon -%>
-      params.map = '16/<%= @lat %>/<%= @lon %>';
-<% else -%>
-      params.map = (mapParams.zoom || 17) + '/' + mapParams.lat + '/' + mapParams.lon;
+    params.map = '16/<%= @lat %>/<%= @lon %>';
 <% end -%>
-    }
 
     var hashParams = OSM.params(location.hash.substring(1));
 
@@ -40,7 +44,14 @@
     }
 <% end -%>
 
-    $('#id-embed').attr('src', '<%= id_url :locale => params[:locale] %>#' + querystring.stringify(params));
+    var baseUrl = '<%= id_url :locale => params[:locale] %>#';
+
+    $('#id-embed').attr('src', baseUrl + querystring.stringify(params));
+
+    $(window).on('hashchange', function () {
+      getParams(params);
+      $('#id-embed').attr('src', baseUrl + querystring.stringify(params));
+    });
   </script>
 <% else %>
   <script type="text/javascript">alert("<%= t 'site.edit.id_not_configured' %>")</script>
-- 
2.39.5