From 870ed660133367aebb22cb44659a5df17949787b Mon Sep 17 00:00:00 2001
From: Bruno Alves de Faria <brunoalvesdefaria@gmail.com>
Date: Tue, 3 Oct 2017 15:35:08 -0300
Subject: [PATCH] Fixing QuickSwitch issue with Additional Timepoints

---
 .../studyTimepointBrowser/studyTimepointBrowser.html       | 2 +-
 .../viewer/studyTimepointBrowser/studyTimepointBrowser.js  | 7 +++++++
 2 files changed, 8 insertions(+), 1 deletion(-)

diff --git a/Packages/ohif-viewerbase/client/components/viewer/studyTimepointBrowser/studyTimepointBrowser.html b/Packages/ohif-viewerbase/client/components/viewer/studyTimepointBrowser/studyTimepointBrowser.html
index 55b0cbcb1..039702e35 100644
--- a/Packages/ohif-viewerbase/client/components/viewer/studyTimepointBrowser/studyTimepointBrowser.html
+++ b/Packages/ohif-viewerbase/client/components/viewer/studyTimepointBrowser/studyTimepointBrowser.html
@@ -25,7 +25,7 @@
                             </div>
                             <hr>
                         {{/each}}
-                        {{#if and this.currentStudy (not showAdditionalTimepoints)}}
+                        {{#if and this.currentStudy (not showAdditionalTimepoints) hasAdditionalTimepoints}}
                             <div class="studyModality additional">
                                 Show additional timepoints
                             </div>
diff --git a/Packages/ohif-viewerbase/client/components/viewer/studyTimepointBrowser/studyTimepointBrowser.js b/Packages/ohif-viewerbase/client/components/viewer/studyTimepointBrowser/studyTimepointBrowser.js
index c6faedbd5..b2f326614 100644
--- a/Packages/ohif-viewerbase/client/components/viewer/studyTimepointBrowser/studyTimepointBrowser.js
+++ b/Packages/ohif-viewerbase/client/components/viewer/studyTimepointBrowser/studyTimepointBrowser.js
@@ -140,6 +140,13 @@ Template.studyTimepointBrowser.helpers({
         return Template.instance().showAdditionalTimepoints.get();
     },
 
+    hasAdditionalTimepoints() {
+        const instance = Template.instance();
+        const { timepointApi } = instance.data;
+        const allTimepoints = timepointApi && timepointApi.all();
+        return allTimepoints && allTimepoints.length > 1;
+    },
+
     // Get the timepoints to be listed
     timepoints() {
         const instance = Template.instance();