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

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

src/ViewModels/CommitDetail.cs

@@ -133,6 +133,12 @@ namespace SourceGit.ViewModels
             private set => SetProperty(ref _revisionFileSearchSuggestion, value);
         }
 
+        public bool CanOpenRevisionFileWithDefaultEditor
+        {
+            get => _canOpenRevisionFileWithDefaultEditor;
+            private set => SetProperty(ref _canOpenRevisionFileWithDefaultEditor, value);
+        }
+
         public CommitDetail(Repository repo)
         {
             _repo = repo;
@@ -197,6 +203,7 @@ namespace SourceGit.ViewModels
             {
                 ViewRevisionFilePath = string.Empty;
                 ViewRevisionFileContent = null;
+                CanOpenRevisionFileWithDefaultEditor = false;
                 return;
             }
 
@@ -205,6 +212,7 @@ namespace SourceGit.ViewModels
             switch (file.Type)
             {
                 case Models.ObjectType.Blob:
+                    CanOpenRevisionFileWithDefaultEditor = true;
                     Task.Run(() =>
                     {
                         var isBinary = new Commands.IsBinary(_repo.FullPath, _commit.SHA, file.Path).Result();
@@ -252,6 +260,7 @@ namespace SourceGit.ViewModels
                     });
                     break;
                 case Models.ObjectType.Commit:
+                    CanOpenRevisionFileWithDefaultEditor = false;
                     Task.Run(() =>
                     {
                         var submoduleRoot = Path.Combine(_repo.FullPath, file.Path).Replace('\\', '/').Trim('/');
@@ -267,11 +276,26 @@ namespace SourceGit.ViewModels
                     });
                     break;
                 default:
+                    CanOpenRevisionFileWithDefaultEditor = false;
                     ViewRevisionFileContent = null;
                     break;
             }
         }
 
+        public Task OpenRevisionFileWithDefaultEditor(string file)
+        {
+            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}~{_commit.SHA.Substring(0, 10)}{fileExt}");
+
+                Commands.SaveRevisionFile.Run(_repo.FullPath, _commit.SHA, file, tmpFile);
+                Native.OS.OpenWithDefaultEditor(tmpFile);
+            });
+        }
+
         public ContextMenu CreateChangeContextMenu(Models.Change change)
         {
             var diffWithMerger = new MenuItem();
@@ -421,13 +445,10 @@ namespace SourceGit.ViewModels
             var openWith = new MenuItem();
             openWith.Header = App.Text("OpenWith");
             openWith.Icon = App.CreateMenuIcon("Icons.OpenWith");
+            openWith.IsEnabled = file.Type == Models.ObjectType.Blob;
             openWith.Click += async (_, ev) =>
             {
-                var fileName = Path.GetFileNameWithoutExtension(fullPath) ?? "";
+                await OpenRevisionFileWithDefaultEditor(file.Path);
-                var fileExt = Path.GetExtension(fullPath) ?? "";
-                var tmpFile = Path.Combine(Path.GetTempPath(), $"{fileName}~{_commit.SHA.Substring(0, 10)}{fileExt}");
-                await Task.Run(() => Commands.SaveRevisionFile.Run(_repo.FullPath, _commit.SHA, file.Path, tmpFile));
-                Native.OS.OpenWithDefaultEditor(tmpFile);
                 ev.Handled = true;
             };
 
@@ -887,5 +908,6 @@ namespace SourceGit.ViewModels
         private List<string> _revisionFiles = null;
         private string _revisionFileSearchFilter = string.Empty;
         private List<string> _revisionFileSearchSuggestion = null;
+        private bool _canOpenRevisionFileWithDefaultEditor = false;
     }
 }

src/Views/RevisionFiles.axaml

@@ -119,7 +119,7 @@
                   Height="26"
                   BorderBrush="{DynamicResource Brush.Border2}" BorderThickness="0,0,0,1"
                   IsVisible="{Binding ViewRevisionFilePath, Converter={x:Static StringConverters.IsNotNullOrEmpty}}">
-            <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"
@@ -140,8 +140,18 @@
                            Converter="{x:Static c:ObjectConverters.IsTypeOf}"
                            ConverterParameter="{x:Type m:RevisionTextFile}"/>
                 </ToggleButton.IsVisible>
-                <Path Width="13" Height="13" Data="{StaticResource Icons.SyntaxHighlight}" Margin="0,3,0,0"/>
+                <Path Width="13" Height="13" Data="{StaticResource Icons.SyntaxHighlight}" Margin="0,2,0,0"/>
               </ToggleButton>
+
+              <Button Grid.Column="3"
+                      Classes="icon_button"
+                      Width="28"
+                      Background="Transparent"
+                      Click="OnOpenFileWithDefaultEditor"
+                      IsVisible="{Binding CanOpenRevisionFileWithDefaultEditor, Mode=OneWay}"
+                      ToolTip.Tip="{DynamicResource Text.OpenWith}">
+                <Path Width="12" Height="12" Data="{StaticResource Icons.OpenWith}"/>
+              </Button>
             </Grid>
           </Border>
 

src/Views/RevisionFiles.axaml.cs

@@ -1,5 +1,6 @@
 using Avalonia.Controls;
 using Avalonia.Input;
+using Avalonia.Interactivity;
 
 namespace SourceGit.Views
 {
@@ -80,5 +81,13 @@ namespace SourceGit.Views
 
             e.Handled = true;
         }
+
+        private async void OnOpenFileWithDefaultEditor(object sender, RoutedEventArgs e)
+        {
+            if (DataContext is ViewModels.CommitDetail { CanOpenRevisionFileWithDefaultEditor: true } vm)
+                await vm.OpenRevisionFileWithDefaultEditor(vm.ViewRevisionFilePath);
+
+            e.Handled = true;
+        }
     }
 }