Fixes #878 and #851

ModernFlyouts/Controls/AirplaneModeControl.xaml

@@ -12,8 +12,8 @@
              Height="64" d:DesignWidth="354" DataContext="{x:Static root:FlyoutHandler.Instance}">
 
     <StackPanel DataContext="{Binding AirplaneModeFlyoutHelper.AirplaneMode}"
-                Orientation="Horizontal" HorizontalAlignment="Center">
-        <ui:FontIcon d:Glyph="{x:Static utils:CommonGlyphs.Info}" FontSize="24">
+                Orientation="Horizontal" HorizontalAlignment="Center" Name="MainStackPanel">
+        <ui:FontIcon d:Glyph="{x:Static utils:CommonGlyphs.Info}" FontSize="24" Name="AirplaneStatusGlyph">
             <ui:FontIcon.Glyph>
                 <Binding>
                     <Binding.Converter>
@@ -27,13 +27,13 @@
 
         <TextBlock HorizontalAlignment="Left" VerticalAlignment="Center"
                    Style="{DynamicResource BaseTextBlockStyle}" FontSize="18"
-                   Margin="20" d:Text="{x:Static resx:Strings.AirplaneMode_NotAvailable}">
+                   Margin="20" d:Text="{x:Static resx:Strings.AirplaneMode_NotAvailable}" Name="AirplaneStatusText">
             <TextBlock.Text>
-                <Binding>
+                <Binding BindsDirectlyToSource="True" IsAsync="True" Mode="OneWay">
                     <Binding.Converter>
                         <toolkit:BoolToObjectConverter
-                                       TrueValue="{x:Static resx:Strings.AirplaneModeOn}"
-                                       FalseValue="{x:Static resx:Strings.AirplaneModeOff}" />
+                            TrueValue="{x:Static resx:Strings.AirplaneModeOn}"
+                            FalseValue="{x:Static resx:Strings.AirplaneModeOff}" />
                     </Binding.Converter>
                 </Binding>
             </TextBlock.Text>

ModernFlyouts/Controls/AirplaneModeControl.xaml.cs

@@ -1,4 +1,7 @@
-using System.Windows.Controls;
+using ModernWpf.Controls;
+using System.ComponentModel;
+using System.Windows.Controls;
+using System.Windows.Data;
 
 namespace ModernFlyouts.Controls
 {
@@ -8,5 +11,10 @@ public AirplaneModeControl()
         {
             InitializeComponent();
         }
+
+        public void InvalidateProperties()
+        {
+            BindingOperations.GetBindingExpression(MainStackPanel, StackPanel.DataContextProperty).UpdateTarget();
+        }
     }
 }

ModernFlyouts/Controls/LockKeysControl.xaml

@@ -10,11 +10,11 @@
 
     <StackPanel Orientation="Horizontal" HorizontalAlignment="Center">
         <ui:FontIcon Glyph="{Binding LockKeysFlyoutHelper.StatusGlyph}"
-                     d:Glyph="{x:Static utils:CommonGlyphs.Lock}" FontSize="24" />
+                     d:Glyph="{x:Static utils:CommonGlyphs.Lock}" FontSize="24" Name="LockStatusGlyph" />
         <TextBlock HorizontalAlignment="Left" VerticalAlignment="Center"
                    Style="{DynamicResource BaseTextBlockStyle}" FontSize="18"
                    Margin="20" Text="{Binding LockKeysFlyoutHelper.StatusText}"
-                   d:Text="Lock key is on" />
+                   d:Text="Lock key is on" Name="LockStatusText" />
     </StackPanel>
 
 </UserControl>

ModernFlyouts/Controls/LockKeysControl.xaml.cs

@@ -1,4 +1,6 @@
-using System.Windows.Controls;
+using ModernWpf.Controls;
+using System.Windows.Controls;
+using System.Windows.Data;
 
 namespace ModernFlyouts.Controls
 {
@@ -8,5 +10,11 @@ public LockKeysControl()
         {
             InitializeComponent();
         }
+
+        public void InvalidateProperties()
+        {
+            BindingOperations.GetBindingExpression(LockStatusText, TextBlock.TextProperty).UpdateTarget();
+            BindingOperations.GetBindingExpression(LockStatusGlyph, FontIcon.GlyphProperty).UpdateTarget();
+        }
     }
 }

ModernFlyouts/Flyout Helpers/AirplaneModeFlyoutHelper.cs

@@ -14,7 +14,11 @@ public class AirplaneModeFlyoutHelper : FlyoutHelperBase
         public bool AirplaneMode
         {
             get => airplaneMode;
-            private set => SetProperty(ref airplaneMode, value);
+            private set
+            {
+                SetProperty(ref airplaneMode, value);
+                airplaneModeControl.InvalidateProperties();
+            }
         }
 
         #endregion

ModernFlyouts/Flyout Helpers/LockKeysFlyoutHelper.cs

@@ -16,7 +16,11 @@ public class LockKeysFlyoutHelper : FlyoutHelperBase
         public string StatusGlyph
         {
             get => statusGlyph;
-            private set => SetProperty(ref statusGlyph, value);
+            private set
+            {
+                SetProperty(ref statusGlyph, value);
+                lockKeysControl.InvalidateProperties();
+            }
         }
 
         private string statusText = string.Empty;

ModernFlyouts/FlyoutHandler.cs

@@ -218,13 +218,17 @@ private void AirplaneModeWatcher_Changed(object sender, AirplaneModeChangedEvent
 
         private void Instance_DisplayUpdated(object sender, EventArgs e)
         {
-            if (!DisplayManager.Instance.DisplayMonitors.Any(x => x == onScreenFlyoutPreferredMonitor))
-            {
-                _savePreferredMonitor = false;
+            _savePreferredMonitor = false;
+            var preferred_monitor = AppDataHelper.PreferredDisplayMonitorId;
+            var monitors = DisplayManager.Instance.DisplayMonitors
+                .Where(x => x.DeviceId == preferred_monitor)
+                .Select(x => x);
+            if (!monitors.Any())
                 OnScreenFlyoutPreferredMonitor = DisplayManager.Instance.PrimaryDisplayMonitor;
-                AlignFlyout();
-                _savePreferredMonitor = true;
-            }
+            else
+                OnScreenFlyoutPreferredMonitor = monitors.First();
+            AlignFlyout();
+            _savePreferredMonitor = true;
         }
 
         private void CreateOnScreenFlyoutWindow()