From 496b88cc0ef45db8cef068f1faea47c0a4b92e6f Mon Sep 17 00:00:00 2001
From: Kosta Korenkov <7r0ggy@gmail.com>
Date: Thu, 23 Jul 2015 13:52:00 +0300
Subject: [PATCH] Make beforeScan optional

---
 src/js/directives/qrScanner.js | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/src/js/directives/qrScanner.js b/src/js/directives/qrScanner.js
index ac569eaa1..dfb840435 100644
--- a/src/js/directives/qrScanner.js
+++ b/src/js/directives/qrScanner.js
@@ -31,7 +31,9 @@ angular.module('copayApp.directives')
                     alert('Scanning error');
                   }
               );
-              $scope.beforeScan();
+              if ($scope.beforeScan) {
+                $scope.beforeScan();
+              }
             }, 100);
           };
 
@@ -90,7 +92,9 @@ angular.module('copayApp.directives')
               $scope.init = function() {
                 setScanner();
                 $timeout(function() {
-                  parentScope.beforeScan();
+                  if (parentScope.beforeScan) {
+                    parentScope.beforeScan();
+                  }
                   canvas = document.getElementById('qr-canvas');
                   context = canvas.getContext('2d');