feature: show tooltip of parent commit when hover the parent SHA

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

src/ViewModels/CommitDetail.cs

@@ -169,6 +169,11 @@ namespace SourceGit.ViewModels
             SearchChangeFilter = string.Empty;
         }
 
+        public Models.Commit GetParent(string sha)
+        {
+            return new Commands.QuerySingleCommit(_repo.FullPath, sha).Result();
+        }
+
         public List<Models.Object> GetRevisionFilesUnderFolder(string parentFolder)
         {
             return new Commands.QueryRevisionObjects(_repo.FullPath, _commit.SHA, parentFolder).Result();

src/Views/CommitBaseInfo.axaml

@@ -117,7 +117,28 @@
                            TextDecorations="Underline"
                            Cursor="Hand"
                            Margin="0,0,16,0"
-                           PointerPressed="OnSHAPressed"/>
+                           PointerEntered="OnSHAPointerEntered"
+                           PointerPressed="OnSHAPressed">
+                  <TextBlock.Styles>
+                    <Style Selector="ToolTip">
+                      <Setter Property="MaxWidth" Value="800"/>
+                    </Style>
+                  </TextBlock.Styles>
+
+                  <TextBlock.DataTemplates>
+                    <DataTemplate DataType="m:Commit">
+                      <StackPanel MinWidth="400" Orientation="Vertical">
+                        <Grid ColumnDefinitions="Auto,*,Auto">
+                          <v:Avatar Grid.Column="0" Width="16" Height="16" VerticalAlignment="Center" IsHitTestVisible="False" User="{Binding Author}"/>
+                          <TextBlock Grid.Column="1" Classes="primary" Text="{Binding Author.Name}" Margin="8,0,0,0"/>
+                          <TextBlock Grid.Column="2" Classes="primary" Text="{Binding CommitterTimeStr}" Foreground="{DynamicResource Brush.FG2}" Margin="8,0,0,0"/>
+                        </Grid>
+
+                        <TextBlock Classes="primary" Margin="0,8,0,0" Text="{Binding Subject}" />
+                      </StackPanel>
+                    </DataTemplate>
+                  </TextBlock.DataTemplates>
+                 </TextBlock>
               </DataTemplate>
             </ItemsControl.ItemTemplate>
           </ItemsControl>

src/Views/CommitBaseInfo.axaml.cs

@@ -1,3 +1,5 @@
+using System.Threading.Tasks;
+
 using Avalonia;
 using Avalonia.Collections;
 using Avalonia.Controls;
@@ -113,6 +115,29 @@ namespace SourceGit.Views
             e.Handled = true;
         }
 
+        private async void OnSHAPointerEntered(object sender, PointerEventArgs e)
+        {
+            if (DataContext is ViewModels.CommitDetail detail && sender is Control { DataContext: string sha } ctl)
+            {
+                var tooltip = ToolTip.GetTip(ctl);
+                if (tooltip is Models.Commit commit && commit.SHA == sha)
+                {
+                    ToolTip.SetIsOpen(ctl, true);
+                }
+                else
+                {
+                    var c = await Task.Run(() => detail.GetParent(sha));
+                    if (c != null)
+                    {
+                        ToolTip.SetTip(ctl, c);
+                        ToolTip.SetIsOpen(ctl, true);
+                    }
+                }
+            }
+
+            e.Handled = true;
+        }
+
         private void OnSHAPressed(object sender, PointerPressedEventArgs e)
         {
             if (DataContext is ViewModels.CommitDetail detail && sender is Control { DataContext: string sha })