Fix Dialog Owner & Improve Window Exiting & Improve WindowsThumbnailProvider & Fix Warnings

Flow.Launcher.Infrastructure/Image/ImageLoader.cs

@@ -171,8 +171,8 @@ private static async ValueTask<ImageResult> LoadInternalAsync(string path, bool
                 }
                 catch (System.Exception e2)
                 {
-                    Log.Exception(ClassName, $"|ImageLoader.Load|Failed to get thumbnail for {path} on first try", e);
-                    Log.Exception(ClassName, $"|ImageLoader.Load|Failed to get thumbnail for {path} on second try", e2);
+                    Log.Exception(ClassName, $"Failed to get thumbnail for {path} on first try", e);
+                    Log.Exception(ClassName, $"Failed to get thumbnail for {path} on second try", e2);
 
                     ImageSource image = ImageCache[Constant.MissingImgIcon, false];
                     ImageCache[path, false] = image;

Flow.Launcher.Infrastructure/Image/ThumbnailReader.cs

@@ -12,7 +12,7 @@
 namespace Flow.Launcher.Infrastructure.Image
 {
     /// <summary>
-    /// Subclass of <see cref="Windows.Win32.UI.Shell.SIIGBF"/>
+    /// Subclass of <see cref="SIIGBF"/>
     /// </summary>
     [Flags]
     public enum ThumbnailOptions
@@ -31,7 +31,9 @@ public class WindowsThumbnailProvider
 
         private static readonly Guid GUID_IShellItem = typeof(IShellItem).GUID;
 
-        private static readonly HRESULT S_ExtractionFailed = (HRESULT)0x8004B200;
+        private static readonly HRESULT S_EXTRACTIONFAILED = (HRESULT)0x8004B200;
+
+        private static readonly HRESULT S_PATHNOTFOUND = (HRESULT)0x8004B205;
 
         public static BitmapSource GetThumbnail(string fileName, int width, int height, ThumbnailOptions options)
         {
@@ -79,16 +81,22 @@ private static unsafe HBITMAP GetHBitmap(string fileName, int width, int height,
                 {
                     imageFactory.GetImage(size, (SIIGBF)options, &hBitmap);
                 }
-                catch (COMException ex) when (ex.HResult == S_ExtractionFailed && options == ThumbnailOptions.ThumbnailOnly)
+                catch (COMException ex) when (options == ThumbnailOptions.ThumbnailOnly &&
+                    (ex.HResult == S_PATHNOTFOUND || ex.HResult == S_EXTRACTIONFAILED))
                 {
-                    // Fallback to IconOnly if ThumbnailOnly fails
+                    // Fallback to IconOnly if extraction fails or files cannot be found
                     imageFactory.GetImage(size, (SIIGBF)ThumbnailOptions.IconOnly, &hBitmap);
                 }
                 catch (FileNotFoundException) when (options == ThumbnailOptions.ThumbnailOnly)
                 {
                     // Fallback to IconOnly if files cannot be found
                     imageFactory.GetImage(size, (SIIGBF)ThumbnailOptions.IconOnly, &hBitmap);
                 }
+                catch (System.Exception ex)
+                {
+                    // Handle other exceptions
+                    throw new InvalidOperationException("Failed to get thumbnail", ex);
+                }
             }
             finally
             {

Flow.Launcher/Msg.xaml.cs

@@ -59,6 +59,7 @@ private void fadeOutStoryboard_Completed(object sender, EventArgs e)
             Close();
         }
 
+        [System.Diagnostics.CodeAnalysis.SuppressMessage("Usage", "VSTHRD100:Avoid async void methods", Justification = "<Pending>")]
         public async void Show(string title, string subTitle, string iconPath)
         {
             tbTitle.Text = title;

Flow.Launcher/ReportWindow.xaml.cs

@@ -15,8 +15,6 @@ namespace Flow.Launcher
 {
     internal partial class ReportWindow
     {
-        private static readonly string ClassName = nameof(ReportWindow);
-
         public ReportWindow(Exception exception)
         {
             InitializeComponent();

Flow.Launcher/SettingPages/ViewModels/SettingsPanePluginsViewModel.cs

@@ -111,11 +111,11 @@ public SettingsPanePluginsViewModel(Settings settings)
         .ToList();
 
     [RelayCommand]
-    private async Task OpenHelperAsync()
+    private async Task OpenHelperAsync(Button button)
     {
         var helpDialog = new ContentDialog()
         {
-            Owner = Application.Current.MainWindow,
+            Owner = Window.GetWindow(button),
             Content = new StackPanel
             {
                 Children =

Flow.Launcher/SettingPages/Views/SettingsPanePlugins.xaml

@@ -57,6 +57,7 @@
                     Height="34"
                     Margin="0 0 20 0"
                     Command="{Binding OpenHelperCommand}"
+                    CommandParameter="{Binding RelativeSource={RelativeSource Self}}"
                     Content=""
                     FontFamily="{DynamicResource SymbolThemeFontFamily}"
                     FontSize="14" />

Flow.Launcher/SettingPages/Views/SettingsPaneTheme.xaml.cs

@@ -1,8 +1,8 @@
-using System.Windows.Navigation;
+using System.Windows.Navigation;
 using CommunityToolkit.Mvvm.DependencyInjection;
 using Flow.Launcher.SettingPages.ViewModels;
-using Page = ModernWpf.Controls.Page;
 using Flow.Launcher.Infrastructure.UserSettings;
+using Page = ModernWpf.Controls.Page;
 
 namespace Flow.Launcher.SettingPages.Views;
 

Plugins/Flow.Launcher.Plugin.Explorer/Flow.Launcher.Plugin.Explorer.csproj

@@ -45,6 +45,7 @@
   </ItemGroup>
 
   <ItemGroup>
+    <PackageReference Include="CommunityToolkit.Mvvm" Version="8.4.0" />
     <!-- Do not upgrade System.Data.OleDb since we are .Net7.0 -->
     <PackageReference Include="System.Data.OleDb" Version="8.0.1" />
     <PackageReference Include="System.Linq.Async" Version="6.0.1" />

Plugins/Flow.Launcher.Plugin.Explorer/Helper/ShellContextMenu.cs

@@ -1,4 +1,4 @@
-using System;
+using System;
 using System.Text;
 using System.Runtime.InteropServices;
 using System.Drawing;
@@ -341,7 +341,7 @@ protected IntPtr[] GetPIDLs(DirectoryInfo[] arrFI)
                 return null;
             }
 
-            IShellFolder oParentFolder = GetParentFolder(arrFI[0].Parent.FullName);
+            IShellFolder oParentFolder = GetParentFolder(arrFI[0].Parent!.FullName);
             if (null == oParentFolder)
             {
                 return null;
@@ -1535,7 +1535,7 @@ public void Install()
                 m_hookType,
                 m_filterFunc,
                 IntPtr.Zero,
-                (int)AppDomain.GetCurrentThreadId());
+                Environment.CurrentManagedThreadId);
         }
         // ************************************************************************
 

Plugins/Flow.Launcher.Plugin.Explorer/Helper/SortOptionTranslationHelper.cs

@@ -16,7 +16,7 @@ public static string GetTranslatedName(this SortOption sortOption)
         ArgumentNullException.ThrowIfNull(API);
 
         var enumName = Enum.GetName(sortOption);
-        var splited = enumName.Split('_');
+        var splited = enumName!.Split('_');
         var name = string.Join('_', splited[..^1]);
         var direction = splited[^1];
 

Plugins/Flow.Launcher.Plugin.Explorer/Search/EnvironmentVariables.cs

@@ -47,7 +47,7 @@ private static void LoadEnvironmentStringPaths()
 
             foreach (DictionaryEntry special in Environment.GetEnvironmentVariables())
             {
-                var path = special.Value.ToString();
+                var path = special.Value!.ToString();
                 // we add a trailing slash to the path to make sure drive paths become valid absolute paths.
                 // for example, if %systemdrive% is C: we turn it to C:\
                 path = path.EnsureTrailingSlash();
@@ -61,7 +61,7 @@ private static void LoadEnvironmentStringPaths()
                 {
                     // Variables are returned with a mixture of all upper/lower case. 
                     // Call ToUpper() to make the results look consistent
-                    _envStringPaths.Add(special.Key.ToString().ToUpper(), path);
+                    _envStringPaths.Add(special.Key.ToString()!.ToUpper(), path);
                 }
             }
         }

Plugins/Flow.Launcher.Plugin.Explorer/ViewModels/ActionKeywordModel.cs

@@ -1,13 +1,15 @@
 using System.ComponentModel;
 using System.Runtime.CompilerServices;
 
+#nullable enable
+
 namespace Flow.Launcher.Plugin.Explorer.Views
 {
     public class ActionKeywordModel : INotifyPropertyChanged
     {
-        private static Settings _settings;
+        private static Settings _settings = null!;
 
-        public event PropertyChangedEventHandler PropertyChanged;
+        public event PropertyChangedEventHandler? PropertyChanged;
 
         public static void Init(Settings settings)
         {
@@ -54,4 +56,4 @@ public bool Enabled
             }
         }
     }
-}
+}