From e7d04ff391afe9a3c2b11a670b907a8ee7ec0a57 Mon Sep 17 00:00:00 2001
From: Samuel Santos <ssantos@present-technologies.com>
Date: Wed, 15 Oct 2014 17:27:20 +0100
Subject: [PATCH] Prevent error when carousel is hidden by ngIf

When the carousel is hidden by ngIf the selector
tElement[0].querySelector('li') returns null causing the following
error:

TypeError: Cannot read property 'attributes' of null
    at
Object.compile
(http://localhost:9000/bower_components/angular-carousel/dist/angular-carousel.js:221:79)

at applyDirectivesToNode
(http://localhost:9000/bower_components/angular/angular.js:6473:32)

at compileNodes
(http://localhost:9000/bower_components/angular/angular.js:6043:15)

at compileNodes
(http://localhost:9000/bower_components/angular/angular.js:6055:15)

at compile
(http://localhost:9000/bower_components/angular/angular.js:5976:15)

at applyDirectivesToNode
(http://localhost:9000/bower_components/angular/angular.js:6386:33)

at compileNodes
(http://localhost:9000/bower_components/angular/angular.js:6043:15)

at compileNodes
(http://localhost:9000/bower_components/angular/angular.js:6055:15)

at compile
(http://localhost:9000/bower_components/angular/angular.js:5976:15)

at link
(http://localhost:9000/bower_components/angular-route/angular-route.js:903:18)
<ul class="notifications" rn-carousel=""
rn-carousel-index="notificationIndex" rn-carousel-buffered="">
---
 src/directives/rn-carousel.js | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/src/directives/rn-carousel.js b/src/directives/rn-carousel.js
index 96a4d32..be0a781 100755
--- a/src/directives/rn-carousel.js
+++ b/src/directives/rn-carousel.js
@@ -118,7 +118,8 @@
                 scope: true,
                 compile: function(tElement, tAttributes) {
                     // use the compile phase to customize the DOM
-                    var firstChildAttributes = tElement[0].querySelector('li').attributes,
+                    var firstChild = tElement[0].querySelector('li'),
+                        firstChildAttributes = (firstChild) ? firstChild.attributes : [],
                         isRepeatBased = false,
                         isBuffered = false,
                         repeatItem,