Add drag/drop handling

TheXamlGuy.TaskbarGroup.Flyout/Controls/TaskbarButtonFlyout.cs

@@ -24,10 +24,6 @@ namespace TheXamlGuy.TaskbarGroup.Flyout.Controls
             TemplateSettings = new TaskbarButtonFlyoutTemplateSettings();
         }
 
-        public event EventHandler<object> Closed;
-
-        public event EventHandler<object> Opened;
-
         public TaskbarButtonFlyoutTemplateSettings TemplateSettings
         {
             get => (TaskbarButtonFlyoutTemplateSettings)GetValue(TemplateSettingsProperty);

TheXamlGuy.TaskbarGroup.Flyout/TheXamlGuy.TaskbarGroup.Flyout.csproj

@@ -78,6 +78,7 @@
     <Compile Include="Controls\TaskbarButtonFlyoutTemplateSettings.cs" />
     <Compile Include="Properties\AssemblyInfo.cs" />
     <Compile Include="Controls\TaskbarButtonFlyout.cs" />
+    <Compile Include="Views\TaskbarButtonGroupDropHandler.cs" />
     <Compile Include="Views\TaskbarButtonGroupItemViewModel.cs" />
     <Compile Include="Views\TaskbarButtonGroupView.xaml.cs">
       <DependentUpon>TaskbarButtonGroupView.xaml</DependentUpon>
@@ -119,6 +120,9 @@
     <PackageReference Include="Microsoft.UI.Xaml">
       <Version>2.8.0-prerelease.220118001</Version>
     </PackageReference>
+    <PackageReference Include="Microsoft.Xaml.Behaviors.Uwp.Managed">
+      <Version>2.0.1</Version>
+    </PackageReference>
   </ItemGroup>
   <ItemGroup>
     <Page Include="Controls\TaskbarButtonFlyout.xaml">

TheXamlGuy.TaskbarGroup.Flyout/Views/TaskbarButtonGroupDropHandler.cs

@@ -0,0 +1,49 @@
+using System;
+using System.Collections.Generic;
+using System.Threading;
+using System.Threading.Tasks;
+using TheXamlGuy.TaskbarGroup.Flyout.Foundation;
+using Windows.ApplicationModel.DataTransfer;
+using Windows.Storage;
+
+namespace TheXamlGuy.TaskbarGroup.Flyout
+{
+    public class TaskbarButtonGroupDropHandler : IDropHandler<TaskbarButtonGroupView>
+    {
+        public async Task Handle(Drop<TaskbarButtonGroupView> message, CancellationToken canellationToken = default)
+        {
+            if (message.DropEventArgs.DataView.Contains(StandardDataFormats.StorageItems))
+            {
+                var items = await message.DropEventArgs.DataView.GetStorageItemsAsync();
+                foreach (var storageItem in items)
+                {
+                    if (storageItem is StorageFile storageFile)
+                    {
+                        if (storageFile.Path is { Length: > 0 })
+                        {
+
+                        }
+                        else
+                        {
+                            var properties = await storageFile.Properties.RetrievePropertiesAsync(new List<string>
+                                {
+                                    "System.AppUserModel.ID"
+                                });
+
+                            var appUserModelId = properties["System.AppUserModel.ID"];
+                            if (appUserModelId is not null)
+                            {
+
+                            }
+                        }
+                    }
+
+                    if (storageItem is StorageFolder storageFolder)
+                    {
+
+                    }
+                }
+            }
+        }
+    }
+}

TheXamlGuy.TaskbarGroup.Flyout/Views/TaskbarButtonGroupItemViewModel.cs

@@ -8,6 +8,7 @@ namespace TheXamlGuy.TaskbarGroup.Flyout
             IServiceFactory serviceFactory,
             IDisposer disposer) : base(messenger, serviceFactory, disposer)
         {
+
         }
 
         public string Name { get; set; }

TheXamlGuy.TaskbarGroup.Flyout/Views/TaskbarButtonGroupView.xaml

@@ -2,8 +2,13 @@
     x:Class="TheXamlGuy.TaskbarGroup.Flyout.TaskbarButtonGroupView"
     xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
     xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
+    xmlns:foundation="using:TheXamlGuy.TaskbarGroup.Flyout.Foundation"
+    xmlns:interactivity="using:Microsoft.Xaml.Interactivity"
     AllowDrop="True">
-    <StackPanel>
+    <interactivity:Interaction.Behaviors>
+        <foundation:DropTarget Mediator="{x:Bind ViewModel.Mediator}" />
+    </interactivity:Interaction.Behaviors>
+    <StackPanel AllowDrop="True" Background="Red">
         <TextBox HorizontalAlignment="Stretch" Text="{x:Bind ViewModel.Name, Mode=TwoWay}" />
         <GridView
             x:Name="GridView"
@@ -30,5 +35,4 @@
             </GridView.ItemsPanel>
         </GridView>
     </StackPanel>
-
 </UserControl>

TheXamlGuy.TaskbarGroup.Flyout/Views/TaskbarButtonGroupViewModel.cs

@@ -5,15 +5,19 @@ namespace TheXamlGuy.TaskbarGroup.Flyout
 {
     public partial class TaskbarButtonGroupViewModel : ObservableCollectionViewModel<TaskbarButtonGroupItemViewModel>
     {
+        [ObservableProperty]
+        private string name = "hello";
+
         public TaskbarButtonGroupViewModel(IMessenger messenger,
             IServiceFactory serviceFactory,
+            IMediator mediator,
             IDisposer disposer) : base(messenger, serviceFactory, disposer)
         {
             Register<FileDropped>(OnFileDropped);
+            Mediator = mediator;
         }
 
-        [ObservableProperty]
-        private string name = "hello";
+        public IMediator Mediator { get; }
 
         private void OnFileDropped(FileDropped args)
         {

TheXamlGuy.TaskbarGroup.Flyout/Views/TaskbarButtonView.xaml

@@ -2,7 +2,7 @@
     x:Class="TheXamlGuy.TaskbarGroup.Flyout.TaskbarButtonView"
     xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
     xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml">
-    <Border>
+    <Border Background="Transparent">
         <ContentControl
             Margin="12"
             HorizontalContentAlignment="Stretch"

TheXamlGuy.TaskbarGroup.Flyout/Views/TaskbarButtonViewModel.cs

@@ -9,7 +9,8 @@ namespace TheXamlGuy.TaskbarGroup.Flyout
             IServiceFactory serviceFactory,
             IDisposer disposer,
             TemplateSelector templateSelector,
-            TaskbarButtonGroupViewModel taskbarButtonGroupViewModel) : base(messenger, serviceFactory, disposer)
+            TaskbarButtonGroupViewModel taskbarButtonGroupViewModel) 
+            : base(messenger, serviceFactory, disposer)
         {
             TemplateSelector = templateSelector;
             TaskbarButtonGroupViewModel = taskbarButtonGroupViewModel;