Feature: Added restart teaching tip (#12425)

Author: yaira2

src/Files.App/UserControls/RestartControl.xaml

@@ -9,6 +9,7 @@
 using Windows.Globalization;
 using Windows.Storage;
 using Windows.Storage.Pickers;
+using Windows.System;
 using static Files.App.Helpers.MenuFlyoutHelper;
 using DispatcherQueue = Microsoft.UI.Dispatching.DispatcherQueue;
 
@@ -26,6 +27,8 @@ public class GeneralViewModel : ObservableObject, IDisposable
 		public AsyncRelayCommand ChangePageCommand { get; }
 		public RelayCommand RemovePageCommand { get; }
 		public RelayCommand<string> AddPageCommand { get; }
+		public RelayCommand RestartCommand { get; }
+		public RelayCommand CancelRestartCommand { get; }
 
 		private bool showRestartControl;
 		public bool ShowRestartControl
@@ -94,6 +97,8 @@ public GeneralViewModel()
 			ChangePageCommand = new AsyncRelayCommand(ChangePage);
 			RemovePageCommand = new RelayCommand(RemovePage);
 			AddPageCommand = new RelayCommand<string>(async (path) => await AddPage(path));
+			RestartCommand = new RelayCommand(DoRestart);
+			CancelRestartCommand = new RelayCommand(DoCancelRestart);
 
 			AddSupportedAppLanguages();
 
@@ -113,6 +118,19 @@ public GeneralViewModel()
 			_ = DetectOpenFilesAtStartup();
 		}
 
+		private async void DoRestart()
+		{
+			UserSettingsService.AppSettingsService.RestoreTabsOnStartup = true; // Tells the app to restore tabs when it's next launched
+			App.SaveSessionTabs(); // Saves the open tabs
+			await Launcher.LaunchUriAsync(new Uri("files-uwp:")); // Launches a new instance of Files
+			Process.GetCurrentProcess().Kill(); // Closes the current instance
+		}
+
+		private void DoCancelRestart()
+		{
+			ShowRestartControl = false;
+		}
+
 		private void AddDateTimeOptions()
 		{
 			DateTimeOffset sampleDate1 = DateTime.Now.AddSeconds(-5);

src/Files.App/UserControls/RestartControl.xaml.cs

@@ -45,6 +45,7 @@
 					<FontIcon Glyph="&#xF2B7;" />
 				</local:SettingsBlockControl.Icon>
 				<ComboBox
+					x:Name="AppLanguagesComboBox"
 					HorizontalAlignment="Left"
 					AutomationProperties.Name="{helpers:ResourceString Name=Language}"
 					ItemsSource="{x:Bind ViewModel.AppLanguages}"
@@ -56,7 +57,33 @@
 					</ComboBox.ItemTemplate>
 				</ComboBox>
 			</local:SettingsBlockControl>
+			<!--  Restart Teaching Tip  -->
+			<TeachingTip
+				IsLightDismissEnabled="True"
+				IsOpen="{x:Bind ViewModel.ShowRestartControl, Mode=TwoWay}"
+				Subtitle="{helpers:ResourceString Name=RestartNotificationText/Text}"
+				Target="{x:Bind AppLanguagesComboBox}">
+				<StackPanel
+					x:Name="ButtonsStackPanel"
+					Padding="0,8,0,0"
+					HorizontalAlignment="Right"
+					Orientation="Horizontal"
+					Spacing="8">
 
+					<Button
+						x:Name="YesButton"
+						MinWidth="140"
+						Command="{x:Bind ViewModel.RestartCommand, Mode=OneWay}"
+						Content="{helpers:ResourceString Name=Yes}"
+						Style="{ThemeResource AccentButtonStyle}" />
+
+					<Button
+						x:Name="NoButton"
+						MinWidth="140"
+						Command="{x:Bind ViewModel.CancelRestartCommand, Mode=OneWay}"
+						Content="{helpers:ResourceString Name=No}" />
+				</StackPanel>
+			</TeachingTip>
 
 			<!--  Date settings  -->
 			<local:SettingsBlockControl
@@ -321,10 +348,5 @@
 					Style="{StaticResource RightAlignedToggleSwitchStyle}" />
 			</local:SettingsBlockControl>
 		</StackPanel>
-
-		<uc:RestartControl
-			x:Name="RestartControl"
-			VerticalAlignment="Bottom"
-			ShowDialog="{x:Bind ViewModel.ShowRestartControl, Mode=TwoWay}" />
 	</Grid>
 </Page>