From 25d652abd1ad85f0bedee68f0b6f3bf43ec77b4a Mon Sep 17 00:00:00 2001
From: Kushan Joshi <0o3ko0@gmail.com>
Date: Mon, 25 Jan 2016 18:54:06 +0530
Subject: [PATCH] Use user language for default translated names

Shows the default user language for translated names.
in ref to issue: https://github.com/openstreetmap/iD/issues/2882
---
 js/id/ui/preset/localized.js | 12 +++++++++---
 1 file changed, 9 insertions(+), 3 deletions(-)

diff --git a/js/id/ui/preset/localized.js b/js/id/ui/preset/localized.js
index 745f5ea83..35e6307c7 100644
--- a/js/id/ui/preset/localized.js
+++ b/js/id/ui/preset/localized.js
@@ -38,7 +38,7 @@ iD.ui.preset.localized = function(field, context) {
                 .placement('left'));
 
         translateButton
-            .on('click', addBlank);
+            .on('click', addNew);
 
         localizedInputs = selection.selectAll('.localized-wrap')
             .data([0]);
@@ -47,10 +47,16 @@ iD.ui.preset.localized = function(field, context) {
             .attr('class', 'localized-wrap');
     }
 
-    function addBlank() {
+    function addNew() {
         d3.event.preventDefault();
         var data = localizedInputs.selectAll('div.entry').data();
-        data.push({ lang: '', value: '' });
+        var defaultLang = iD.detect().locale.toLowerCase().split('-')[0];
+        var langExists = _.find(data, function(datum) { return datum.lang === defaultLang;});
+        var isLangEn = defaultLang.indexOf('en') > -1;
+        if (isLangEn || langExists) {
+          defaultLang = '';
+        }
+        data.push({ lang: defaultLang, value: '' });
         localizedInputs.call(render, data);
     }