From 97b8c76e5425650a85fcd8d0ca8593c28d8f2c5c Mon Sep 17 00:00:00 2001
From: sis0k0 <stanimira.vlaeva@gmail.com>
Date: Tue, 18 Jul 2017 15:10:08 +0300
Subject: [PATCH] fix(action-bar): ignore InvisibleNodes when adding title

fixes #897
---
 nativescript-angular/directives/action-bar.ts | 9 +++++++--
 1 file changed, 7 insertions(+), 2 deletions(-)

diff --git a/nativescript-angular/directives/action-bar.ts b/nativescript-angular/directives/action-bar.ts
index a48795345..5158a1532 100644
--- a/nativescript-angular/directives/action-bar.ts
+++ b/nativescript-angular/directives/action-bar.ts
@@ -5,6 +5,7 @@ import { View } from "tns-core-modules/ui/core/view";
 
 import { isBlank } from "../lang-facade";
 import {
+    InvisibleNode,
     NgView,
     ViewClassMeta,
     registerElement,
@@ -16,7 +17,9 @@ const actionBarMeta: ViewClassMeta = {
         const bar = <ActionBar>(<any>parent);
         const childView = <any>child;
 
-        if (child instanceof NavigationButton) {
+        if (child instanceof InvisibleNode) {
+            return;
+        } else if (child instanceof NavigationButton) {
             bar.navigationButton = childView;
             childView.parent = bar;
         } else if (child instanceof ActionItem) {
@@ -30,7 +33,9 @@ const actionBarMeta: ViewClassMeta = {
         const bar = <ActionBar>(<any>parent);
         const childView = <any>child;
 
-        if (child instanceof NavigationButton) {
+        if (child instanceof InvisibleNode) {
+            return;
+        } else if (child instanceof NavigationButton) {
             if (bar.navigationButton === childView) {
                 bar.navigationButton = null;
             }