style: add ListView style and improve the extension (#624)

* move extensions out of the controls folder

* add media ListView style and enhance the ListView extension

* minor list view extension comments tweaks

* store dependency properties values

* improve ListViewExtensions nullable support

* use nullable value types for properties

---------

Co-authored-by: Tung Huynh <[email protected]>

Author: United600

Screenbox/Controls/Extensions/ListViewExtensions.cs

@@ -7,7 +7,7 @@
     xmlns:ctAnimations="using:CommunityToolkit.WinUI.Animations"
     xmlns:ctConverters="using:CommunityToolkit.WinUI.Converters"
     xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
-    xmlns:extensions="using:Screenbox.Controls.Extensions"
+    xmlns:extensions="using:Screenbox.Extensions"
     xmlns:helpers="using:Screenbox.Helpers"
     xmlns:interactions="using:Screenbox.Controls.Interactions"
     xmlns:interactivity="using:Microsoft.Xaml.Interactivity"
@@ -290,8 +290,6 @@
             Grid.Row="1"
             Margin="{StaticResource TopMediumMargin}"
             Padding="{x:Bind Padding, Mode=OneWay}"
-            extensions:ListViewExtensions.ItemCornerRadius="{StaticResource MediaItemCornerRadius}"
-            extensions:ListViewExtensions.ItemMargin="0,2,0,2"
             ui:ListViewExtensions.ItemContainerStretchDirection="Horizontal"
             ui:ScrollViewerExtensions.VerticalScrollBarMargin="{x:Bind Common.ScrollBarMargin, Mode=OneWay}"
             AllowDrop="True"
@@ -300,11 +298,11 @@
             DragOver="PlaylistListView_OnDragOver"
             Drop="PlaylistListView_OnDrop"
             IsItemClickEnabled="True"
-            ItemContainerStyle="{StaticResource MediaListViewItemStyle}"
             ItemsSource="{x:Bind ViewModel.Playlist.Items}"
             KeyboardAcceleratorPlacementMode="Hidden"
             SelectionChanged="PlaylistListView_OnSelectionChanged"
-            SelectionMode="Extended">
+            SelectionMode="Extended"
+            Style="{StaticResource MediaListViewStyle}">
             <ListView.Resources>
                 <x:Boolean x:Key="ListViewItemSelectionIndicatorVisualEnabled">False</x:Boolean>
             </ListView.Resources>

Screenbox/Controls/PlaylistView.xaml

@@ -1,7 +1,16 @@
-using Windows.UI.ViewManagement;
+// Licensed to the .NET Foundation under one or more agreements.
+// The .NET Foundation licenses this file to you under the MIT license.
+// See the LICENSE file in the project root for more information.
+// Source: https://github.com/CommunityToolkit/WindowsCommunityToolkit/blob/main/Microsoft.Toolkit.Uwp.UI/Extensions/ApplicationViewExtensions.cs
+
+using Windows.UI.ViewManagement;
 using Windows.UI.Xaml.Controls;
 
-namespace Screenbox.Controls.Extensions;
+namespace Screenbox.Extensions;
+
+/// <summary>
+/// Provides attached properties for interacting with the <see cref="Windows.UI.ViewManagement.ApplicationView"/> on a window (app view).
+/// </summary>
 public static class ApplicationViewExtensions
 {
     /// <summary>

Screenbox/Controls/Extensions/ApplicationViewExtensions.cs renamed to Screenbox/Extensions/ApplicationViewExtensions.cs

@@ -2,7 +2,7 @@
 using Windows.UI.Xaml;
 using Windows.UI.Xaml.Controls;
 
-namespace Screenbox.Controls.Extensions;
+namespace Screenbox.Extensions;
 
 /// <summary>
 /// Provides attached dependency properties for the <see cref="CommandBar"/> control.