From d2c8ea15fd820314cdbd9f4345825d76ebd45f0d Mon Sep 17 00:00:00 2001
From: John Firebaugh <john.firebaugh@gmail.com>
Date: Mon, 21 Oct 2013 13:28:09 -0700
Subject: [PATCH] Legend for GPS overlay layer

---
 data/imagery.json       | 1 +
 data/update_imagery.js  | 3 +++
 js/id/ui/attribution.js | 6 ++++++
 3 files changed, 10 insertions(+)

diff --git a/data/imagery.json b/data/imagery.json
index 2951ce37c..5a931e80d 100644
--- a/data/imagery.json
+++ b/data/imagery.json
@@ -13959,6 +13959,7 @@
         ],
         "terms_url": "http://www.openstreetmap.org/copyright",
         "terms_text": "© OpenStreetMap contributors",
+        "terms_html": "© <a href='http://www.openstreetmap.org/copyright'>OpenStreetMap contributors</a>. North: <span style='display: inline-block; width: 10px; height: 10px; background-color: #7fed11;'></span> South: <span style='display: inline-block; width: 10px; height: 10px; background-color: #7f11ed;'></span> East: <span style='display: inline-block; width: 10px; height: 10px; background-color: #ff3f3f;'></span> West: <span style='display: inline-block; width: 10px; height: 10px; background-color: #00bfbf;'></span>",
         "overlay": true
     },
     {
diff --git a/data/update_imagery.js b/data/update_imagery.js
index 920436166..380b7e22e 100644
--- a/data/update_imagery.js
+++ b/data/update_imagery.js
@@ -71,6 +71,9 @@ sources.forEach(function(source) {
     if (attribution.text) {
         im.terms_text = attribution.text;
     }
+    if (attribution.html) {
+        im.terms_html = attribution.html;
+    }
 
     ['id', 'default', 'overlay'].forEach(function(a) {
         if (source[a]) {
diff --git a/js/id/ui/attribution.js b/js/id/ui/attribution.js
index f8dd6bee4..f65590df9 100644
--- a/js/id/ui/attribution.js
+++ b/js/id/ui/attribution.js
@@ -16,6 +16,12 @@ iD.ui.Attribution = function(context) {
             .append('span')
             .attr('class', 'attribution')
             .each(function(d) {
+                if (d.terms_html) {
+                    d3.select(this)
+                        .html(d.terms_html);
+                    return;
+                }
+
                 var source = d.terms_text || d.id || d.name;
 
                 if (d.logo) {