open urls in WhatsNew page with external browser

Author: fabsenet

adrilight/View/SettingsWindowComponents/WhatsNew.xaml

@@ -20,7 +20,7 @@
     </UserControl.Resources>
     <Grid>
         <materialDesign:Card Margin="4 4 4 4" Width="900" VerticalAlignment="Stretch" Height="auto">
-            <WebBrowser x:Name="browser"></WebBrowser>
+            <WebBrowser x:Name="browser" Navigating="Browser_Navigating"></WebBrowser>
         </materialDesign:Card>
     </Grid>
 </UserControl>

adrilight/View/SettingsWindowComponents/WhatsNew.xaml.cs

@@ -1,6 +1,7 @@
 using adrilight.ViewModel;
 using System;
 using System.Collections.Generic;
+using System.Diagnostics;
 using System.Linq;
 using System.Text;
 using System.Threading.Tasks;
@@ -21,10 +22,13 @@ namespace adrilight.View.SettingsWindowComponents
     /// </summary>
     public partial class WhatsNew : UserControl
     {
+        public SettingsViewModel SettingsViewModel { get; }
+
         public WhatsNew(SettingsViewModel settingsViewModel)
         {
             InitializeComponent();
-            browser.Source = settingsViewModel.WhatsNewUrl;
+            SettingsViewModel = settingsViewModel ?? throw new ArgumentNullException(nameof(settingsViewModel));
+            browser.Source = SettingsViewModel.WhatsNewUrl;
         }
 
 
@@ -44,5 +48,16 @@ public WhatsNewSetupSelectableViewPart(Lazy<WhatsNew> lazyContent)
 
             public object Content => lazyContent.Value;
         }
+
+        private void Browser_Navigating(object sender, NavigatingCancelEventArgs e)
+        {
+            var isWhatsNewUrl = e.Uri == SettingsViewModel.WhatsNewUrl;
+
+            if (!isWhatsNewUrl)
+            {
+                e.Cancel = true;
+                Process.Start(e.Uri.AbsoluteUri);
+            }
+        }
     }
 }