feature: use Ctrl+C to copy selected commits in histories (#321)

src/Views/Histories.axaml

@@ -27,10 +27,12 @@
                 ColumnHeaderHeight="24"
                 HorizontalScrollBarVisibility="Disabled"
                 VerticalScrollBarVisibility="Auto"
+                ClipboardCopyMode="None"
                 LayoutUpdated="OnCommitDataGridLayoutUpdated"
                 SelectionChanged="OnCommitDataGridSelectionChanged"
                 ContextRequested="OnCommitDataGridContextRequested"
-                DoubleTapped="OnCommitDataGridDoubleTapped">
+                DoubleTapped="OnCommitDataGridDoubleTapped"
+                KeyDown="OnCommitDataGridKeyDown">
         <DataGrid.Styles>
           <Style Selector="DataGridColumnHeader">
             <Setter Property="MinHeight" Value="24"/>

src/Views/Histories.axaml.cs

@@ -1,5 +1,5 @@
 using System;
-
+using System.Text;
 using Avalonia;
 using Avalonia.Controls;
 using Avalonia.Controls.Primitives;
@@ -419,5 +419,24 @@ namespace SourceGit.Views
             }
             e.Handled = true;
         }
+
+        private void OnCommitDataGridKeyDown(object sender, KeyEventArgs e)
+        {
+            if (sender is DataGrid grid && 
+                grid.SelectedItems is { Count: > 0 } selected && 
+                e.Key == Key.C && 
+                e.KeyModifiers.HasFlag(KeyModifiers.Control))
+            {
+                var builder = new StringBuilder();
+                foreach (var item in selected)
+                {
+                    if (item is Models.Commit commit)
+                        builder.AppendLine($"{commit.SHA.Substring(0, 10)} - {commit.Subject}");
+                }
+
+                App.CopyText(builder.ToString());
+                e.Handled = true;
+            }
+        }
     }
 }