Added a debounce for image rotation command. (#8682)

Author: devovercome

src/Files.Uwp/Helpers/BitmapHelper.cs

@@ -1,4 +1,5 @@
-using System;
+using Files.Filesystem;
+using System;
 using System.IO;
 using System.Threading.Tasks;
 using Windows.Graphics.Imaging;
@@ -46,9 +47,14 @@ public static async Task Rotate(string filePath, BitmapRotation rotation)
                 return;
             }
 
-            using IRandomAccessStream fileStream = await file.OpenAsync(FileAccessMode.ReadWrite);
-            BitmapDecoder decoder = await BitmapDecoder.CreateAsync(fileStream);
+            var fileStreamRes = await FilesystemTasks.Wrap(() => file.OpenAsync(FileAccessMode.ReadWrite).AsTask());
+            using IRandomAccessStream fileStream = fileStreamRes.Result;
+            if (fileStream == null)
+            {
+                return;
+            }
 
+            BitmapDecoder decoder = await BitmapDecoder.CreateAsync(fileStream);
             using var memStream = new InMemoryRandomAccessStream();
             BitmapEncoder encoder = await BitmapEncoder.CreateForTranscodingAsync(memStream, decoder);
 
@@ -59,6 +65,7 @@ public static async Task Rotate(string filePath, BitmapRotation rotation)
             memStream.Seek(0);
             fileStream.Seek(0);
             fileStream.Size = 0;
+
             await RandomAccessStream.CopyAsync(memStream, fileStream);
         }
     }

src/Files.Uwp/Views/ColumnShellPage.xaml.cs

@@ -258,8 +258,8 @@ private void InitToolbarCommands()
             NavToolbarViewModel.ExtractHereCommand = new RelayCommand(() => SlimContentPage?.CommandsViewModel.DecompressArchiveHereCommand.Execute(null));
             NavToolbarViewModel.ExtractToCommand = new RelayCommand(() => SlimContentPage?.CommandsViewModel.DecompressArchiveToChildFolderCommand.Execute(null));
             NavToolbarViewModel.InstallInfCommand = new RelayCommand(() => SlimContentPage?.CommandsViewModel.InstallInfDriver.Execute(null));
-            NavToolbarViewModel.RotateImageLeftCommand = new RelayCommand(() => SlimContentPage?.CommandsViewModel.RotateImageLeftCommand.Execute(null));
-            NavToolbarViewModel.RotateImageRightCommand = new RelayCommand(() => SlimContentPage?.CommandsViewModel.RotateImageRightCommand.Execute(null));
+            NavToolbarViewModel.RotateImageLeftCommand = new RelayCommand(() => SlimContentPage?.CommandsViewModel.RotateImageLeftCommand.Execute(null), () => SlimContentPage?.CommandsViewModel.RotateImageLeftCommand.CanExecute(null) == true);
+            NavToolbarViewModel.RotateImageRightCommand = new RelayCommand(() => SlimContentPage?.CommandsViewModel.RotateImageRightCommand.Execute(null), () => SlimContentPage?.CommandsViewModel.RotateImageRightCommand.CanExecute(null) == true);
             NavToolbarViewModel.InstallFontCommand = new RelayCommand(() => SlimContentPage?.CommandsViewModel.InstallFontCommand.Execute(null));
             NavToolbarViewModel.UpdateCommand = new AsyncRelayCommand(async () => await UpdateSettingsService.DownloadUpdates());
         }

src/Files.Uwp/Views/ModernShellPage.xaml.cs

@@ -243,8 +243,8 @@ private void InitToolbarCommands()
             NavToolbarViewModel.ExtractHereCommand = new RelayCommand(() => SlimContentPage?.CommandsViewModel.DecompressArchiveHereCommand.Execute(null));
             NavToolbarViewModel.ExtractToCommand = new RelayCommand(() => SlimContentPage?.CommandsViewModel.DecompressArchiveToChildFolderCommand.Execute(null));
             NavToolbarViewModel.InstallInfCommand = new RelayCommand(() => SlimContentPage?.CommandsViewModel.InstallInfDriver.Execute(null));
-            NavToolbarViewModel.RotateImageLeftCommand = new RelayCommand(() => SlimContentPage?.CommandsViewModel.RotateImageLeftCommand.Execute(null));
-            NavToolbarViewModel.RotateImageRightCommand = new RelayCommand(() => SlimContentPage?.CommandsViewModel.RotateImageRightCommand.Execute(null));
+            NavToolbarViewModel.RotateImageLeftCommand = new RelayCommand(() => SlimContentPage?.CommandsViewModel.RotateImageLeftCommand.Execute(null), () => SlimContentPage?.CommandsViewModel.RotateImageLeftCommand.CanExecute(null) == true);
+            NavToolbarViewModel.RotateImageRightCommand = new RelayCommand(() => SlimContentPage?.CommandsViewModel.RotateImageRightCommand.Execute(null), () => SlimContentPage?.CommandsViewModel.RotateImageRightCommand.CanExecute(null) == true);
             NavToolbarViewModel.InstallFontCommand = new RelayCommand(() => SlimContentPage?.CommandsViewModel.InstallFontCommand.Execute(null));
             NavToolbarViewModel.UpdateCommand = new AsyncRelayCommand(async () => await UpdateSettingsService.DownloadUpdates());
         }