Merge lp:~phablet-team/messaging-app/fix-crash-callback into lp:messaging-app/staging

[Tiago Salem Herrmann]

Check if "callback" is undefined to avoid crashing the app

Check if "callback" is undefined to avoid crashing the app

[Gustavo Pichorim Boiko (boiko)]

Looks good!

review: Approve

=== modified file 'src/qml/MainPage.qml'
--- src/qml/MainPage.qml	2017-03-15 18:09:35 +0000
+++ src/qml/MainPage.qml	2017-03-27 19:13:08 +0000
@@ -368,7 +368,7 @@
                 incubator = component.incubateObject(parent, properties, Qt.Asynchronous);
 
                 function objectCreated(status) {
-                    if (status == Component.Ready && callback != null) {
+                    if (status == Component.Ready && callback != undefined && callback != null) {
                         callback(incubator.object);
                     }
                 }