feature: double-click on single-selecte change tree or file tree will expand/collapse folder node

src/Models/TreeDataGridSelectionModel.cs

@@ -171,22 +171,27 @@ namespace SourceGit.Models
                 if (!IsSelected(modelIndex))
                 {
                     PointerSelect(sender, row, e);
+                    _pressedPoint = s_InvalidPoint;
                 }
                 else
                 {
                     var point = e.GetCurrentPoint(sender);
                     if (point.Properties.IsRightButtonPressed)
+                    {
+                        _pressedPoint = s_InvalidPoint;
                         return;
+                    }
 
                     if (e.KeyModifiers == KeyModifiers.Control)
                     {
                         Deselect(modelIndex);
                     }
-                    else if (e.ClickCount == 2)
+                    else if (e.ClickCount % 2 == 0)
                     {
                         _rowDoubleTapped?.Invoke(this, e);
+                        e.Handled = true;
                     }
-                    else
+                    else if (sender.RowSelection.Count > 1)
                     {
                         using (BatchUpdate())
                         {
@@ -194,9 +199,9 @@ namespace SourceGit.Models
                             Select(modelIndex);
                         }
                     }
+
+                    _pressedPoint = s_InvalidPoint;
                 }
-                
-                _pressedPoint = s_InvalidPoint;
             }
             else
             {

src/SourceGit.csproj

@@ -1,6 +1,6 @@
 <Project Sdk="Microsoft.NET.Sdk">
   <PropertyGroup>
-    <OutputType>WinExe</OutputType>
+    <OutputType>Exe</OutputType>
     <TargetFramework>net8.0</TargetFramework>
     <BuiltInComInteropSupport>true</BuiltInComInteropSupport>
     <ApplicationManifest>App.manifest</ApplicationManifest>

src/ViewModels/CommitDetail.cs

@@ -511,14 +511,22 @@ namespace SourceGit.ViewModels
                 }
             };
 
-            source.Selection = new Models.TreeDataGridSelectionModel<FileTreeNode>(source, x => x.Children);
+            var selection = new Models.TreeDataGridSelectionModel<FileTreeNode>(source, x => x.Children);
-            source.RowSelection.SingleSelect = true;
+            selection.SingleSelect = true;
-            source.RowSelection.SelectionChanged += (s, _) =>
+            selection.RowDoubleTapped += (s, e) =>
+            {
+                var model = s as Models.TreeDataGridSelectionModel<FileTreeNode>;
+                var node = model.SelectedItem;
+                if (node != null && node.IsFolder)
+                    node.IsExpanded = !node.IsExpanded;
+            };
+            selection.SelectionChanged += (s, _) =>
             {
                 if (s is Models.TreeDataGridSelectionModel<FileTreeNode> selection)
                     RefreshViewRevisionFile(selection.SelectedItem?.Backend as Models.Object);
             };
 
+            source.Selection = selection;
             RevisionFiles = source;
         }
 

src/Views/CommitChanges.axaml

@@ -50,7 +50,14 @@
                                 ViewMode="{Binding Source={x:Static vm:Preference.Instance}, Path=CommitChangeViewMode}"
                                 Changes="{Binding VisibleChanges}"
                                 SelectedChanges="{Binding SelectedChanges, Mode=TwoWay}"
-                                ContextRequested="OnChangeContextRequested"/>
+                                ContextRequested="OnChangeContextRequested"
+                                ChangeDoubleTapped="OnChangeDoubleTapped">
+          <v:ChangeCollectionView.Styles>
+            <Style Selector="TreeDataGridExpanderCell" x:DataType="vm:FileTreeNode">
+              <Setter Property="IsExpanded" Value="{Binding IsExpanded, Mode=TwoWay}"/>
+            </Style>
+          </v:ChangeCollectionView.Styles>
+        </v:ChangeCollectionView>
       </Border>
     </Grid>
 

src/Views/CommitChanges.axaml.cs

@@ -1,5 +1,5 @@
-using Avalonia;
 using Avalonia.Controls;
+using Avalonia.Interactivity;
 
 namespace SourceGit.Views
 {
@@ -19,7 +19,19 @@ namespace SourceGit.Views
                 {
                     var menu = vm.CreateChangeContextMenu(selected[0]);
                     (sender as Control)?.OpenContextMenu(menu);
-                }                
+                }
+            }
+
+            e.Handled = true;
+        }
+
+        private void OnChangeDoubleTapped(object sender, RoutedEventArgs e)
+        {
+            if (sender is ChangeCollectionView view)
+            {
+                var selected = view.tree?.RowSelection?.SelectedItem as ViewModels.FileTreeNode;
+                if (selected != null && selected.IsFolder)
+                    selected.IsExpanded = !selected.IsExpanded;
             }
 
             e.Handled = true;

src/Views/RevisionCompare.axaml

@@ -105,7 +105,14 @@
                                   ViewMode="{Binding Source={x:Static vm:Preference.Instance}, Path=CommitChangeViewMode}"
                                   Changes="{Binding VisibleChanges}"
                                   SelectedChanges="{Binding SelectedChanges, Mode=TwoWay}"
-                                  ContextRequested="OnChangeContextRequested"/>
+                                  ContextRequested="OnChangeContextRequested"
+                                  ChangeDoubleTapped="OnChangeDoubleTapped">
+            <v:ChangeCollectionView.Styles>
+              <Style Selector="TreeDataGridExpanderCell" x:DataType="vm:FileTreeNode">
+                <Setter Property="IsExpanded" Value="{Binding IsExpanded, Mode=TwoWay}"/>
+              </Style>
+            </v:ChangeCollectionView.Styles>
+          </v:ChangeCollectionView>
         </Border>
       </Grid>
 

src/Views/RevisionCompare.axaml.cs

@@ -1,5 +1,6 @@
 using Avalonia.Controls;
 using Avalonia.Input;
+using Avalonia.Interactivity;
 
 namespace SourceGit.Views
 {
@@ -21,6 +22,18 @@ namespace SourceGit.Views
             e.Handled = true;
         }
 
+        private void OnChangeDoubleTapped(object sender, RoutedEventArgs e)
+        {
+            if (sender is ChangeCollectionView view)
+            {
+                var selected = view.tree?.RowSelection?.SelectedItem as ViewModels.FileTreeNode;
+                if (selected != null && selected.IsFolder)
+                    selected.IsExpanded = !selected.IsExpanded;
+            }
+
+            e.Handled = true;
+        }
+
         private void OnPressedSHA(object sender, PointerPressedEventArgs e)
         {
             if (DataContext is ViewModels.RevisionCompare vm && sender is TextBlock block)

src/Views/RevisionFiles.axaml

@@ -56,6 +56,12 @@
               </Grid>
             </DataTemplate>
           </TreeDataGrid.Resources>
+
+          <TreeDataGrid.Styles>
+            <Style Selector="TreeDataGridExpanderCell" x:DataType="vm:FileTreeNode">
+              <Setter Property="IsExpanded" Value="{Binding IsExpanded, Mode=TwoWay}"/>
+            </Style>
+          </TreeDataGrid.Styles>
         </TreeDataGrid>
       </Border>
     </Grid>