Extract dialog methods from INavigator into IDialogs interface

Sample/AnotherViewModel.cs

@@ -6,7 +6,8 @@ namespace Sample;
 [ShellMap<AnotherPage>("another")]
 public partial class AnotherViewModel(
     ILogger<AnotherViewModel> logger,
-    INavigator navigator
+    INavigator navigator,
+    IDialogs dialogs
 ) : ObservableObject, IQueryAttributable, IPageLifecycleAware, INavigationConfirmation, INavigationAware, IDisposable
 {
     [ObservableProperty] string backArg;
@@ -29,7 +30,7 @@ public void ApplyQueryAttributes(IDictionary<string, object> query)
     public void OnAppearing() => logger.LogInformation("AnotherViewModel OnAppearing");
     public void OnDisappearing() => logger.LogInformation("AnotherViewModel OnDisappearing");
 
-    public Task<bool> CanNavigate() => navigator.Confirm(
+    public Task<bool> CanNavigate() => dialogs.Confirm(
         "Confirm", 
         "Are you sure you want to navigate?", 
         "Yes", 

src/Shiny.Maui.Shell/IDialogs.cs

@@ -0,0 +1,65 @@
+namespace Shiny;
+
+public interface IDialogs
+{
+    /// <summary>
+    /// Displays an alert dialog with a title, message, and an accept button.
+    /// </summary>
+    /// <remarks>This method is typically used to display informational messages or warnings to the user. The
+    /// dialog will not close until the user interacts with the accept button.</remarks>
+    /// <param name="title">The title of the alert dialog. Can be <see langword="null"/> to omit the title.</param>
+    /// <param name="message">The message to display in the alert dialog. This parameter is required.</param>
+    /// <param name="acceptText">The text for the accept button. Defaults to "OK" if not specified.</param>
+    /// <returns>A <see cref="Task"/> that represents the asynchronous operation of displaying the alert.</returns>
+    Task Alert(string? title, string message, string acceptText = "OK");
+
+
+    /// <summary>
+    /// Displays a confirmation dialog with the specified title, message, and button text,  and returns the user's
+    /// response.
+    /// </summary>
+    /// <param name="title">The title of the confirmation dialog. Can be <see langword="null"/> to omit the title.</param>
+    /// <param name="message">The message displayed in the confirmation dialog. This parameter is required.</param>
+    /// <param name="acceptText">The text for the confirmation button. Defaults to "Yes" if not specified.</param>
+    /// <param name="cancelText">The text for the cancellation button. Defaults to "No" if not specified.</param>
+    /// <returns>A task that represents the asynchronous operation. The task result is <see langword="true"/> if the user
+    /// selects the confirmation button; otherwise, <see langword="false"/>.</returns>
+    Task<bool> Confirm(string? title, string message, string acceptText = "Yes", string cancelText = "No");
+
+
+    /// <summary>
+    /// Displays a prompt dialog that allows the user to enter text input.
+    /// </summary>
+    /// <param name="title">The title of the prompt dialog. Can be <see langword="null"/> to omit the title.</param>
+    /// <param name="message">The message displayed in the prompt dialog. This parameter is required.</param>
+    /// <param name="acceptText">The text for the accept button. Defaults to "OK" if not specified.</param>
+    /// <param name="cancelText">The text for the cancel button. Defaults to "Cancel" if not specified.</param>
+    /// <param name="placeholder">The placeholder text displayed in the input field when it is empty. Can be <see langword="null"/>.</param>
+    /// <param name="initialValue">The initial value pre-filled in the input field. Defaults to an empty string.</param>
+    /// <param name="maxLength">The maximum number of characters allowed in the input field. Defaults to -1 (no limit).</param>
+    /// <param name="keyboard">The type of keyboard to display for the input field. Defaults to <see langword="null"/> (default keyboard).</param>
+    /// <returns>A task that represents the asynchronous operation. The task result is the text entered by the user,
+    /// or <see langword="null"/> if the user cancelled the dialog.</returns>
+    Task<string?> Prompt(
+        string? title,
+        string message,
+        string acceptText = "OK",
+        string cancelText = "Cancel",
+        string? placeholder = null,
+        string initialValue = "",
+        int maxLength = -1,
+        Keyboard? keyboard = null
+    );
+
+
+    /// <summary>
+    /// Displays an action sheet that allows the user to choose from a set of options.
+    /// </summary>
+    /// <param name="title">The title of the action sheet. Can be <see langword="null"/> to omit the title.</param>
+    /// <param name="cancel">The text for the cancel button. Can be <see langword="null"/> to omit.</param>
+    /// <param name="destruction">The text for a destructive action button (displayed in red on some platforms). Can be <see langword="null"/> to omit.</param>
+    /// <param name="buttons">The array of action button labels to display.</param>
+    /// <returns>A task that represents the asynchronous operation. The task result is the text of the button
+    /// selected by the user.</returns>
+    Task<string> ActionSheet(string? title, string? cancel, string? destruction, params string[] buttons);
+}

src/Shiny.Maui.Shell/INavigator.cs

@@ -85,29 +85,4 @@ Task SetRoot<TViewModel>(
     /// unique identifier, and the value represents the associated data.</param>
     /// <returns>A task that represents the asynchronous operation of navigating back.</returns>
     Task GoBack(int backCount = 1, params IEnumerable<(string Key, object Value)> args);
-
-
-    /// <summary>
-    /// Displays an alert dialog with a title, message, and an accept button.
-    /// </summary>
-    /// <remarks>This method is typically used to display informational messages or warnings to the user. The
-    /// dialog will not close until the user interacts with the accept button.</remarks>
-    /// <param name="title">The title of the alert dialog. Can be <see langword="null"/> to omit the title.</param>
-    /// <param name="message">The message to display in the alert dialog. This parameter is required.</param>
-    /// <param name="acceptText">The text for the accept button. Defaults to "OK" if not specified.</param>
-    /// <returns>A <see cref="Task"/> that represents the asynchronous operation of displaying the alert.</returns>
-    Task Alert(string? title, string message, string acceptText = "OK");
-
-
-    /// <summary>
-    /// Displays a confirmation dialog with the specified title, message, and button text,  and returns the user's
-    /// response.
-    /// </summary>
-    /// <param name="title">The title of the confirmation dialog. Can be <see langword="null"/> to omit the title.</param>
-    /// <param name="message">The message displayed in the confirmation dialog. This parameter is required.</param>
-    /// <param name="acceptText">The text for the confirmation button. Defaults to "Yes" if not specified.</param>
-    /// <param name="cancelText">The text for the cancellation button. Defaults to "No" if not specified.</param>
-    /// <returns>A task that represents the asynchronous operation. The task result is <see langword="true"/> if the user 
-    /// selects the confirmation button; otherwise, <see langword="false"/>.</returns>
-    Task<bool> Confirm(string? title, string message, string acceptText = "Yes", string cancelText = "No");
 }

src/Shiny.Maui.Shell/Infrastructure/ShellNavigator.cs

@@ -13,7 +13,7 @@ public class ShinyShellNavigator(
     IServiceProvider services,
     IDispatcher dispatcher,
     ShinyAppBuilder navBuilder
-) : INavigator, IMauiInitializeService, IDisposable
+) : INavigator, IDialogs, IMauiInitializeService, IDisposable
 {
     public event EventHandler<NavigationEventArgs>? Navigating;
     public event EventHandler<NavigatedEventArgs>? Navigated;
@@ -231,6 +231,48 @@ await dispatcher.DispatchAsync(async () =>
         });
         return await tcs.Task.ConfigureAwait(false);
     }
+
+
+    public async Task<string?> Prompt(
+        string? title,
+        string message,
+        string acceptText = "OK",
+        string cancelText = "Cancel",
+        string? placeholder = null,
+        string initialValue = "",
+        int maxLength = -1,
+        Keyboard? keyboard = null
+    )
+    {
+        var tcs = new TaskCompletionSource<string?>();
+        await dispatcher.DispatchAsync(async () =>
+        {
+            var result = await Shell.Current.DisplayPromptAsync(
+                title ?? string.Empty,
+                message,
+                acceptText,
+                cancelText,
+                placeholder,
+                maxLength,
+                keyboard,
+                initialValue
+            );
+            tcs.SetResult(result);
+        });
+        return await tcs.Task.ConfigureAwait(false);
+    }
+
+
+    public async Task<string> ActionSheet(string? title, string? cancel, string? destruction, params string[] buttons)
+    {
+        var tcs = new TaskCompletionSource<string>();
+        await dispatcher.DispatchAsync(async () =>
+        {
+            var result = await Shell.Current.DisplayActionSheet(title, cancel, destruction, buttons);
+            tcs.SetResult(result);
+        });
+        return await tcs.Task.ConfigureAwait(false);
+    }
 
 
     void AppOnDescendantAdded(object? sender, ElementEventArgs args)

src/Shiny.Maui.Shell/MauiAppBuilderExtensions.cs

@@ -16,6 +16,9 @@ public static MauiAppBuilder UseShinyShell(this MauiAppBuilder builder, Action<S
             builder.Services.AddSingleton<INavigator>(
                 sp => sp.GetRequiredService<ShinyShellNavigator>()
             );
+            builder.Services.AddSingleton<IDialogs>(
+                sp => sp.GetRequiredService<ShinyShellNavigator>()
+            );
             builder.Services.AddSingleton<IMauiInitializeService>(
                 sp => sp.GetRequiredService<ShinyShellNavigator>()
             );