Add Navigations

2022-12-05 18:52:37 +00:00
parent 3b09265a30
commit 855a4b98d2
24 changed files with 532 additions and 1 deletions
@@ -0,0 +1,19 @@
+using Avalonia.Controls;
+using Avalonia.Controls.Primitives;
+
+namespace Toolkit.Foundation.Avalonia
+{
+    public class ContentControlHandler : NavigationRouteHandler<ContentControl>
+    {
+        public override void Receive(NavigationRouteRequest<ContentControl> message)
+        {
+            if (message.Template is TemplatedControl control)
+            {
+                control.DataContext = message.Data;
+                message.Target.Content = control;
+            }
+
+            message.Reply(true);
+        }
+    }
+}
@@ -0,0 +1,54 @@
+using FluentAvalonia.UI.Controls;
+using Kromek.Framework.Core.Extensions;
+using Toolkit.Foundation.Avalonia;
+
+namespace Kromek.Framework.Avalonia
+{
+    public class ContentDialogHandler : NavigationRouteHandler<ContentDialog>
+    {
+        public override async void Receive(NavigationRouteRequest<ContentDialog> message)
+        {
+            if (message.Template is ContentDialog contentDialog)
+            {
+                async void HandleButtonClick(ContentDialog sender, ContentDialogButtonClickEventArgs args)
+                {
+                    ContentDialogButtonClickDeferral defferal = args.GetDeferral();
+
+                    if (sender.DataContext is INavigationConfirmationAsync confirmationAsync)
+                    {
+                        if (!await confirmationAsync.CanConfirmAsync())
+                        {
+                            args.Cancel = true;
+                        }
+                    }
+
+                    if (sender.DataContext is INavigationConfirmation confirmation)
+                    {
+                        if (!confirmation.CanConfirm())
+                        {
+                            args.Cancel = true;
+                        }
+                    }
+
+                    if (!args.Cancel)
+                    {
+                        contentDialog.SecondaryButtonClick -= HandleButtonClick;
+                        contentDialog.PrimaryButtonClick -= HandleButtonClick;
+                        contentDialog.CloseButtonClick -= HandleButtonClick;
+                    }
+
+                    defferal.Complete();
+                }
+
+                contentDialog.SecondaryButtonClick += HandleButtonClick;
+                contentDialog.PrimaryButtonClick += HandleButtonClick;
+                contentDialog.CloseButtonClick += HandleButtonClick;
+
+                contentDialog.DataContext = message.Data;
+                await contentDialog.ShowAsync();
+
+                message.Reply(true);
+            }
+        }
+    }
+}
@@ -0,0 +1,35 @@
+using Avalonia.Controls.Primitives;
+using FluentAvalonia.UI.Controls;
+using FluentAvalonia.UI.Navigation;
+using Toolkit.Foundation.Avalonia;
+
+namespace Kromek.Framework.Avalonia
+{
+    public class FrameHandler : NavigationRouteHandler<Frame>
+    {
+        public override async void Receive(NavigationRouteRequest<Frame> message)
+        {
+            message.Target.NavigationPageFactory = new NavigationPageFactory();
+
+            TaskCompletionSource<bool> completionSource = new();
+            if (message.Template is TemplatedControl content)
+            {
+                void HandleNavigated(object sender, NavigationEventArgs args)
+                {
+                    message.Target.Navigated -= HandleNavigated;
+                    if (message.Target.Content is TemplatedControl control)
+                    {
+                        control.DataContext = message.Data;
+                        completionSource.SetResult(true);
+                    }
+                }
+
+                message.Target.Navigated += HandleNavigated;
+                message.Target.NavigateFromObject(content);
+            }
+
+            bool result = await completionSource.Task;
+            message.Reply(result);
+        }
+    }
+}
@@ -0,0 +1,18 @@
+using FluentAvalonia.UI.Controls;
+using Avalonia.Controls;
+
+namespace Toolkit.Foundation.Avalonia
+{
+    internal class NavigationPageFactory : INavigationPageFactory
+    {
+        public IControl? GetPage(Type srcType)
+        {
+            return default;
+        }
+
+        public IControl GetPageFromObject(object target)
+        {
+            return (IControl)target;
+        }
+    }
+}
@@ -0,0 +1,38 @@
+using Avalonia.Controls.Primitives;
+using Avalonia.Interactivity;
+
+namespace Toolkit.Foundation.Avalonia
+{
+    public class NavigationRoute : INavigationRoute
+    {
+        private readonly INavigationRouteDescriptorCollection routes;
+
+        public NavigationRoute(INavigationRouteDescriptorCollection routes)
+        {
+            this.routes = routes;
+        }
+
+        public void Add(string name, object route)
+        {
+            if (route is TemplatedControl control)
+            {
+                void HandleUnloaded(object? sender, RoutedEventArgs args)
+                {
+                    if (routes.FirstOrDefault(x => x.Route == sender) is INavigationRouteDescriptor descriptor)
+                    {
+                        routes.Remove(descriptor);
+                    }
+                }
+
+                control.Unloaded += HandleUnloaded;
+            }
+
+            if (routes.FirstOrDefault(x => x.Name == name) is INavigationRouteDescriptor descriptor)
+            {
+                routes.Remove(descriptor);
+            }
+
+            routes.Add(new NavigationRouteDescriptor(name, route));
+        }
+    }
+}
@@ -0,0 +1,10 @@
+using Avalonia.Controls.Primitives;
+using CommunityToolkit.Mvvm.Messaging;
+
+namespace Toolkit.Foundation.Avalonia
+{
+    public abstract class NavigationRouteHandler<TTarget> : IRecipient<NavigationRouteRequest<TTarget>> where TTarget : TemplatedControl
+    {
+        public abstract void Receive(NavigationRouteRequest<TTarget> message);
+    }
+}
@@ -0,0 +1,24 @@
+using Avalonia.Controls.Primitives;
+using CommunityToolkit.Mvvm.Messaging.Messages;
+
+namespace Toolkit.Foundation.Avalonia
+{
+    public class NavigationRouteRequest<TTarget> : AsyncRequestMessage<bool> where TTarget : TemplatedControl
+    {
+        public NavigationRouteRequest(TTarget target, object? data, object? template, IDictionary<string, object>? parameters = null)
+        {
+            Target = target;
+            Data = data;
+            Template = template;
+            Parameters = parameters;
+        }
+
+        public TTarget Target { get; }
+
+        public object? Data { get; }
+
+        public object? Template { get; }
+
+        public IDictionary<string, object>? Parameters { get; }
+    }
+}
@@ -0,0 +1,137 @@
+using Avalonia.Controls;
+using Avalonia.Controls.Primitives;
+using CommunityToolkit.Mvvm.Messaging;
+using FluentAvalonia.UI.Controls;
+
+namespace Toolkit.Foundation.Avalonia
+{
+    public class NavigationRouter : INavigationRouter
+    {
+        private readonly INavigationRouteDescriptorCollection descriptors;
+        private readonly IMessenger messenger;
+        private readonly INamedDataTemplateFactory namedDataTemplateFactory;
+        private readonly INamedTemplateFactory namedTemplateFactory;
+        private readonly ITemplateDescriptorProvider templateDescriptorProvider;
+        private readonly ITemplateFactory templateFactory;
+        private readonly ITypedDataTemplateFactory typedDataTemplateFactory;
+
+        public NavigationRouter(ITemplateDescriptorProvider templateDescriptorProvider,
+            ITemplateFactory templateFactory,
+            INamedTemplateFactory namedTemplateFactory,
+            INamedDataTemplateFactory namedDataTemplateFactory,
+            ITypedDataTemplateFactory typedDataTemplateFactory,
+            IMessenger messenger,
+            INavigationRouteDescriptorCollection descriptors)
+        {
+            this.templateDescriptorProvider = templateDescriptorProvider;
+            this.templateFactory = templateFactory;
+            this.namedTemplateFactory = namedTemplateFactory;
+            this.namedDataTemplateFactory = namedDataTemplateFactory;
+            this.typedDataTemplateFactory = typedDataTemplateFactory;
+            this.messenger = messenger;
+            this.descriptors = descriptors;
+        }
+
+        public Task InitializeAsync()
+        {
+            messenger.Register<Navigate>(this, (sender, args) => OnNavigate(args));
+            messenger.Register<NavigateBack>(this, (sender, args) => OnNavigateBack(args));
+
+            return Task.CompletedTask;
+        }
+
+        private async void OnNavigate(Navigate args)
+        {
+            object? data = null;
+            object? template = null;
+
+            Dictionary<string, object> keyedParameters = new();
+            List<object> parameters = new();
+
+            foreach (object? parameter in args.Parameters)
+            {
+                if (parameter is not null)
+                {
+                    if (parameter is KeyValuePair<string, object> keyed)
+                    {
+                        keyedParameters.Add(keyed.Key, keyed.Value);
+                    }
+                    else
+                    {
+                        parameters.Add(parameter);
+                    }
+                }
+            }
+
+            if (args.Name is { Length: > 0 } name)
+            {
+                data = namedDataTemplateFactory.Create(name, parameters.ToArray());
+                template = namedTemplateFactory.Create(name);
+            }
+
+            if (args.Type is Type type)
+            {
+                data = typedDataTemplateFactory.Create(type, parameters.ToArray());
+                template = templateFactory.Create(data);
+            }
+
+            if (template is not null)
+            {
+                bool navigated = false;
+                if (template is ContentDialog contentDialog)
+                {
+                    navigated = await messenger.Send(new NavigationRouteRequest<ContentDialog>(contentDialog, data, template, keyedParameters));
+                }
+                else
+                {
+                    if (descriptors.FirstOrDefault(x => args.Route is string { } name && name == x.Name) is NavigationRouteDescriptor descriptor)
+                    {
+                        switch (descriptor.Route)
+                        {
+                            case Frame frame:
+                                navigated = await messenger.Send(new NavigationRouteRequest<Frame>(frame, data, template, keyedParameters));
+                                break;
+                            case ContentControl contentControl:
+                                navigated = await messenger.Send(new NavigationRouteRequest<ContentControl>(contentControl, data, template, keyedParameters));
+                                break;
+                        }
+                    }
+                }
+
+                if (navigated)
+                {
+                    messenger.Send((Navigated)Navigated.Create((dynamic?)template, (dynamic?)data, keyedParameters));
+                }
+            }
+            else
+            {
+                if (descriptors.FirstOrDefault(x => args.Route is string { } name && name == x.Name) is NavigationRouteDescriptor descriptor)
+                {
+                    if (descriptor.Route is ContentControl contentControl)
+                    {
+                        contentControl.Content = null;
+                    }
+                }
+            }
+        }
+
+        private void OnNavigateBack(NavigateBack args)
+        {
+            if (descriptors.FirstOrDefault(x => args.Route is string { } name && name == x.Name) is NavigationRouteDescriptor descriptor)
+            {
+                if (descriptor.Route is ContentControl { Content: TemplatedControl content })
+                {
+                    if (content.DataContext is IDisposable disposable)
+                    {
+                        disposable.Dispose();
+                    }
+                }
+
+                if (descriptor.Route is Frame frame)
+                {
+                    frame.GoBack();
+                }
+            }
+        }
+    }
+}