From f9c1cbf6bc904249aa953ecb38ce70597d0a7cfc Mon Sep 17 00:00:00 2001
From: Bryan Housel <bryan@mapbox.com>
Date: Mon, 9 Apr 2018 14:33:39 -0400
Subject: [PATCH] Show a message on the History Panel if the feature is new
 (closes #4975)

---
 data/core.yaml               |  1 +
 dist/locales/en.json         |  1 +
 modules/ui/panels/history.js | 11 +++++++++--
 3 files changed, 11 insertions(+), 2 deletions(-)

diff --git a/data/core.yaml b/data/core.yaml
index 6c3c59961..059d8975d 100644
--- a/data/core.yaml
+++ b/data/core.yaml
@@ -325,6 +325,7 @@ en:
       key: H
       title: History
       selected: "{n} selected"
+      no_history: "No History (New Feature)"
       version: Version
       last_edit: Last Edit
       edited_by: Edited By
diff --git a/dist/locales/en.json b/dist/locales/en.json
index 8bf4f41d7..9dfb67330 100644
--- a/dist/locales/en.json
+++ b/dist/locales/en.json
@@ -407,6 +407,7 @@
                 "key": "H",
                 "title": "History",
                 "selected": "{n} selected",
+                "no_history": "No History (New Feature)",
                 "version": "Version",
                 "last_edit": "Last Edit",
                 "edited_by": "Edited By",
diff --git a/modules/ui/panels/history.js b/modules/ui/panels/history.js
index b665fe5f9..710cfa8b1 100644
--- a/modules/ui/panels/history.js
+++ b/modules/ui/panels/history.js
@@ -96,8 +96,8 @@ export function uiPanelHistory(context) {
 
 
     function redraw(selection) {
-        var selected = _filter(context.selectedIDs(), function(e) { return context.hasEntity(e); }),
-            singular = selected.length === 1 ? selected[0] : null;
+        var selected = _filter(context.selectedIDs(), function(e) { return context.hasEntity(e); });
+        var singular = selected.length === 1 ? selected[0] : null;
 
         osm = context.connection();
 
@@ -112,6 +112,13 @@ export function uiPanelHistory(context) {
 
         var entity = context.entity(singular);
 
+        if (!entity.version) {
+            selection
+                .append('div')
+                .text(t('info_panels.history.no_history'));
+            return;
+        }
+
         var list = selection
             .append('ul');