Fix NRE when spawning a secondary window

Trolldemorted · Trolldemorted · commit eff6bbdd0c57 · 2019-04-04T18:21:42.000+02:00
diff --git a/Signal-Windows/Views/MainPage.xaml.cs b/Signal-Windows/Views/MainPage.xaml.cs
@@ -35,7 +35,7 @@ public MainPage()
         public void SwitchToStyle(PageStyle newStyle)
         {
             var frame = Window.Current.Content as Frame;
-            if (frame.CurrentSourcePageType == typeof(MainPage))
+            if (frame?.CurrentSourcePageType == typeof(MainPage))
             {
                 if (newStyle == PageStyle.Narrow)
                 {

Original file line number	Diff line number	Diff line change
`@@ -35,7 +35,7 @@ public MainPage()`
`35`	`35`	`public void SwitchToStyle(PageStyle newStyle)`
`36`	`36`	`{`
`37`	`37`	`var frame = Window.Current.Content as Frame;`
`38`		`- if (frame.CurrentSourcePageType == typeof(MainPage))`
	`38`	`+ if (frame?.CurrentSourcePageType == typeof(MainPage))`
`39`	`39`	`{`
`40`	`40`	`if (newStyle == PageStyle.Narrow)`
`41`	`41`	`{`