From a0169ad1585326ff24540b3e3b9860c40212f308 Mon Sep 17 00:00:00 2001
From: Shivam Dave <sdave@ucsc.edu>
Date: Wed, 26 Aug 2015 20:20:16 -0700
Subject: [PATCH] [Mobile] Browse Controller

Adjusted BrowseController to hide the
back button if current object represented/
selected has no context.
---
 platform/commonUI/browse/src/BrowseController.js | 12 +++++++++---
 1 file changed, 9 insertions(+), 3 deletions(-)

diff --git a/platform/commonUI/browse/src/BrowseController.js b/platform/commonUI/browse/src/BrowseController.js
index d1f89d43fb..d1ec4d33e0 100644
--- a/platform/commonUI/browse/src/BrowseController.js
+++ b/platform/commonUI/browse/src/BrowseController.js
@@ -150,9 +150,15 @@ define(
             }
             
             function checkRoot() {
-                var parent = navigationService.getNavigation().getCapability('context').getParent();
-                if (parent.getId() !== ROOT_ID) {
-                    $scope.atRoot = false;
+                var context = navigationService.getNavigation().getCapability('context'),
+                    parent;
+                if (context) {
+                    parent = context.getParent();
+                    if (parent.getId() !== ROOT_ID) {
+                        $scope.atRoot = false;
+                    } else {
+                        $scope.atRoot = true;
+                    }
                 } else {
                     $scope.atRoot = true;
                 }