feature: add a button to open current revision file with default editor in FileHistories

Signed-off-by: leo <longshuang@msn.cn>

Author: love-linger

src/ViewModels/FileHistories.cs

@@ -9,10 +9,11 @@
 
 namespace SourceGit.ViewModels
 {
-    public class FileHistoriesRevisionFile(string path, object content)
+    public class FileHistoriesRevisionFile(string path, object content = null, bool canOpenWithDefaultEditor = false)
     {
         public string Path { get; set; } = path;
         public object Content { get; set; } = content;
+        public bool CanOpenWithDefaultEditor { get; set; } = canOpenWithDefaultEditor;
     }
 
     public class FileHistoriesSingleRevision : ObservableObject
@@ -49,6 +50,23 @@ public Task<bool> ResetToSelectedRevision()
             return Task.Run(() => new Commands.Checkout(_repo.FullPath).FileWithRevision(_file, $"{_revision.SHA}"));
         }
 
+        public Task OpenWithDefaultEditor()
+        {
+            if (_viewContent is not FileHistoriesRevisionFile { CanOpenWithDefaultEditor: true })
+                return null;
+
+            return Task.Run(() =>
+            {
+                var fullPath = Native.OS.GetAbsPath(_repo.FullPath, _file);
+                var fileName = Path.GetFileNameWithoutExtension(fullPath) ?? "";
+                var fileExt = Path.GetExtension(fullPath) ?? "";
+                var tmpFile = Path.Combine(Path.GetTempPath(), $"{fileName}~{_revision.SHA.Substring(0, 10)}{fileExt}");
+
+                Commands.SaveRevisionFile.Run(_repo.FullPath, _revision.SHA, _file, tmpFile);
+                Native.OS.OpenWithDefaultEditor(tmpFile);
+            });
+        }
+
         private void RefreshViewContent()
         {
             if (_isDiffMode)
@@ -62,7 +80,7 @@ private void SetViewContentAsRevisionFile()
             var objs = new Commands.QueryRevisionObjects(_repo.FullPath, _revision.SHA, _file).Result();
             if (objs.Count == 0)
             {
-                ViewContent = new FileHistoriesRevisionFile(_file, null);
+                ViewContent = new FileHistoriesRevisionFile(_file);
                 return;
             }
 
@@ -80,13 +98,13 @@ private void SetViewContentAsRevisionFile()
                             {
                                 var source = ImageSource.FromRevision(_repo.FullPath, _revision.SHA, _file, imgDecoder);
                                 var image = new Models.RevisionImageFile(_file, source.Bitmap, source.Size);
-                                Dispatcher.UIThread.Invoke(() => ViewContent = new FileHistoriesRevisionFile(_file, image));
+                                Dispatcher.UIThread.Invoke(() => ViewContent = new FileHistoriesRevisionFile(_file, image, true));
                             }
                             else
                             {
                                 var size = new Commands.QueryFileSize(_repo.FullPath, _file, _revision.SHA).Result();
                                 var binaryFile = new Models.RevisionBinaryFile() { Size = size };
-                                Dispatcher.UIThread.Invoke(() => ViewContent = new FileHistoriesRevisionFile(_file, binaryFile));
+                                Dispatcher.UIThread.Invoke(() => ViewContent = new FileHistoriesRevisionFile(_file, binaryFile, true));
                             }
 
                             return;
@@ -101,18 +119,18 @@ private void SetViewContentAsRevisionFile()
                             if (imgDecoder != Models.ImageDecoder.None)
                             {
                                 var combined = new RevisionLFSImage(_repo.FullPath, _file, lfs, imgDecoder);
-                                Dispatcher.UIThread.Invoke(() => ViewContent = new FileHistoriesRevisionFile(_file, combined));
+                                Dispatcher.UIThread.Invoke(() => ViewContent = new FileHistoriesRevisionFile(_file, combined, true));
                             }
                             else
                             {
                                 var rlfs = new Models.RevisionLFSObject() { Object = lfs };
-                                Dispatcher.UIThread.Invoke(() => ViewContent = new FileHistoriesRevisionFile(_file, rlfs));
+                                Dispatcher.UIThread.Invoke(() => ViewContent = new FileHistoriesRevisionFile(_file, rlfs, true));
                             }
                         }
                         else
                         {
                             var txt = new Models.RevisionTextFile() { FileName = obj.Path, Content = content };
-                            Dispatcher.UIThread.Invoke(() => ViewContent = new FileHistoriesRevisionFile(_file, txt));
+                            Dispatcher.UIThread.Invoke(() => ViewContent = new FileHistoriesRevisionFile(_file, txt, true));
                         }
                     });
                     break;
@@ -132,7 +150,7 @@ private void SetViewContentAsRevisionFile()
                     });
                     break;
                 default:
-                    ViewContent = new FileHistoriesRevisionFile(_file, null);
+                    ViewContent = new FileHistoriesRevisionFile(_file);
                     break;
             }
         }

src/Views/FileHistories.axaml

@@ -139,7 +139,7 @@
                         <Border Grid.Row="0"
                                 BorderThickness="0,0,0,1" BorderBrush="{DynamicResource Brush.Border2}"
                                 Background="{DynamicResource Brush.Window}">
-                          <Grid ColumnDefinitions="Auto,*,Auto">
+                          <Grid ColumnDefinitions="Auto,*,Auto,Auto">
                             <Path Grid.Column="0" Width="12" Height="12" Data="{StaticResource Icons.File}" Margin="8,0,0,0"/>
                             <TextBlock Grid.Column="1"
                                        Classes="primary"
@@ -161,6 +161,15 @@
                               </ToggleButton.IsVisible>
                               <Path Width="13" Height="13" Data="{StaticResource Icons.SyntaxHighlight}" Margin="0,3,0,0"/>
                             </ToggleButton>
+                            <Button Grid.Column="3"
+                                    Classes="icon_button"
+                                    Width="28"
+                                    Background="Transparent"
+                                    Click="OnOpenFileWithDefaultEditor"
+                                    IsVisible="{Binding CanOpenWithDefaultEditor, Mode=OneWay}"
+                                    ToolTip.Tip="{DynamicResource Text.OpenWith}">
+                              <Path Width="12" Height="12" Data="{StaticResource Icons.OpenWith}"/>
+                            </Button>
                           </Grid>
                         </Border>
 

src/Views/FileHistories.axaml.cs

@@ -76,5 +76,13 @@ private void OnCommitSubjectPointerMoved(object sender, PointerEventArgs e)
                     ToolTip.SetTip(border, vm.GetCommitFullMessage(commit));
             }
         }
+
+        private async void OnOpenFileWithDefaultEditor(object sender, RoutedEventArgs e)
+        {
+            if (DataContext is ViewModels.FileHistories { ViewContent: ViewModels.FileHistoriesSingleRevision revision })
+                await revision.OpenWithDefaultEditor();
+
+            e.Handled = true;
+        }
     }
 }