Retrieve Better Thumbnails for Files in Properties Dialog (#1233)

Author: lukeblevins

Files/Dialogs/PropertiesDialog.xaml

@@ -4,11 +4,20 @@
     xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
     xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
     xmlns:local2="using:Files.Helpers"
-    xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
+    xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006" 
+    xmlns:Windows10version1903="http://schemas.microsoft.com/winfx/2006/xaml/presentation?IsApiContractPresent(Windows.Foundation.UniversalApiContract, 8)"
     x:Name="PropertiesDialogMarkup"
-    Background="Transparent"
     mc:Ignorable="d"
     RequestedTheme="{x:Bind local2:ThemeHelper.RootTheme}">
+    <ContentDialog.Background>
+            <AcrylicBrush
+            Windows10version1903:TintLuminosityOpacity="0.9"
+            AlwaysUseFallback="{x:Bind AppSettings.AcrylicEnabled, Mode=OneWay}"
+            BackgroundSource="HostBackdrop"
+            FallbackColor="{x:Bind AppSettings.AcrylicTheme.FallbackColor, Mode=OneWay}"
+            TintColor="{x:Bind AppSettings.AcrylicTheme.TintColor, Mode=OneWay}"
+            TintOpacity="{x:Bind AppSettings.AcrylicTheme.TintOpacity, Mode=OneWay}" />
+    </ContentDialog.Background>
     <ContentDialog.Resources>
         <Thickness x:Key="ContentDialogPadding">0</Thickness>
     </ContentDialog.Resources>

Files/Dialogs/PropertiesDialog.xaml.cs

@@ -1,11 +1,13 @@
-using Windows.UI.Xaml.Controls;
+using Files.View_Models;
+using Windows.UI.Xaml.Controls;
 
 // The Content Dialog item template is documented at https://go.microsoft.com/fwlink/?LinkId=234238
 
 namespace Files.Dialogs
 {
     public sealed partial class PropertiesDialog : ContentDialog
     {
+        public SettingsViewModel AppSettings => App.AppSettings;
         public PropertiesDialog()
         {
             this.InitializeComponent();

Files/Views/Pages/Properties.xaml.cs

@@ -22,6 +22,7 @@
 using FileAttributes = System.IO.FileAttributes;
 using ByteSizeLib;
 using static Files.Helpers.NativeFindStorageItemHelper;
+using Windows.UI.Xaml.Media.Imaging;
 
 namespace Files
 {
@@ -171,6 +172,18 @@ private async void GetFileProperties(CancellationTokenSource _tokenSource)
             ViewModel.ItemSize = ByteSize.FromBytes(ViewModel.Item.FileSizeBytes).ToBinaryString().ConvertSizeAbbreviation()
                 + " (" + ByteSize.FromBytes(ViewModel.Item.FileSizeBytes).Bytes.ToString("#,##0") + " " + ResourceController.GetTranslation("ItemSizeBytes") + ")";
 
+            using (var Thumbnail = await file.GetThumbnailAsync(ThumbnailMode.SingleItem, 80, ThumbnailOptions.UseCurrentScale))
+            {
+                BitmapImage icon = new BitmapImage();
+                if (Thumbnail != null)
+                {
+                    ViewModel.FileIconSource = icon;
+                    await icon.SetSourceAsync(Thumbnail);
+                    ViewModel.LoadUnknownTypeGlyph = false;
+                    ViewModel.LoadFileIcon = true;
+                }
+            }
+
             // Get file MD5 hash
             var hashAlgTypeName = HashAlgorithmNames.Md5;
             ViewModel.ItemMD5HashProgressVisibility = Visibility.Visible;