ux: re-design submodule preview in revision files

src/Models/DiffResult.cs

@@ -587,16 +587,10 @@ namespace SourceGit.Models
         public string New { get; set; } = string.Empty;
     }
 
-    public class SubmoduleRevision
-    {
-        public Commit Commit { get; set; } = null;
-        public string FullMessage { get; set; } = string.Empty;
-    }
-
     public class SubmoduleDiff
     {
-        public SubmoduleRevision Old { get; set; } = null;
-        public SubmoduleRevision New { get; set; } = null;
+        public RevisionSubmodule Old { get; set; } = null;
+        public RevisionSubmodule New { get; set; } = null;
     }
 
     public class DiffResult

src/Models/RevisionFile.cs

@@ -25,6 +25,7 @@ namespace SourceGit.Models
 
     public class RevisionSubmodule
     {
-        public string SHA { get; set; }
+        public Commit Commit { get; set; } = null;
+        public string FullMessage { get; set; } = string.Empty;
     }
 }

src/ViewModels/CommitDetail.cs

@@ -201,7 +201,34 @@ namespace SourceGit.ViewModels
                     });
                     break;
                 case Models.ObjectType.Commit:
-                    ViewRevisionFileContent = new Models.RevisionSubmodule() { SHA = file.SHA };
+                    Task.Run(() =>
+                    {
+                        var submoduleRoot = Path.Combine(_repo, file.Path);
+                        var commit = new Commands.QuerySingleCommit(submoduleRoot, file.SHA).Result();
+                        if (commit != null)
+                        {
+                            var body = new Commands.QueryCommitFullMessage(submoduleRoot, file.SHA).Result();
+                            Dispatcher.UIThread.Invoke(() =>
+                            {
+                                ViewRevisionFileContent = new Models.RevisionSubmodule()
+                                {
+                                    Commit = commit,
+                                    FullMessage = body,
+                                };
+                            });
+                        }
+                        else
+                        {
+                            Dispatcher.UIThread.Invoke(() =>
+                            {
+                                ViewRevisionFileContent = new Models.RevisionSubmodule()
+                                {
+                                    Commit = new Models.Commit() { SHA = file.SHA },
+                                    FullMessage = string.Empty,
+                                };
+                            });
+                        }
+                    });
                     break;
                 default:
                     ViewRevisionFileContent = null;

src/ViewModels/DiffContext.cs

@@ -210,16 +210,16 @@ namespace SourceGit.ViewModels
             return size > 0 ? (new Bitmap(stream), size) : (null, size);
         }
 
-        private Models.SubmoduleRevision QuerySubmoduleRevision(string repo, string sha)
+        private Models.RevisionSubmodule QuerySubmoduleRevision(string repo, string sha)
         {
             var commit = new Commands.QuerySingleCommit(repo, sha).Result();
             if (commit != null)
             {
                 var body = new Commands.QueryCommitFullMessage(repo, sha).Result();
-                return new Models.SubmoduleRevision() { Commit = commit, FullMessage = body };
+                return new Models.RevisionSubmodule() { Commit = commit, FullMessage = body };
             }
 
-            return new Models.SubmoduleRevision()
+            return new Models.RevisionSubmodule()
             {
                 Commit = new Models.Commit() { SHA = sha },
                 FullMessage = string.Empty,

src/Views/DiffView.axaml

@@ -151,7 +151,7 @@
                   <Border IsVisible="{Binding Old, Converter={x:Static ObjectConverters.IsNotNull}}">
                     <ContentControl Content="{Binding Old}">
                       <ContentControl.DataTemplates>
-                        <DataTemplate DataType="m:SubmoduleRevision">
+                        <DataTemplate DataType="m:RevisionSubmodule">
                           <Border Margin="0,0,0,8" BorderThickness="1" BorderBrush="{DynamicResource Brush.Border1}" Background="{DynamicResource Brush.Window}">
                             <v:CommitBaseInfo MaxHeight="256" Margin="0,0,0,4" CanNavigate="False" Content="{Binding Commit}" Message="{Binding FullMessage}"/>
                           </Border>

src/Views/RevisionFiles.axaml

@@ -78,10 +78,9 @@
             </DataTemplate>
 
             <DataTemplate DataType="m:RevisionSubmodule">
-              <StackPanel Orientation="Vertical" HorizontalAlignment="Center" VerticalAlignment="Center">
+              <StackPanel Orientation="Vertical" HorizontalAlignment="Stretch" Margin="8,8,8,0">
                 <TextBlock Text="{DynamicResource Text.CommitDetail.Files.Submodule}" FontSize="18" FontWeight="Bold" HorizontalAlignment="Center" Foreground="{DynamicResource Brush.FG2}"/>
-                <Path Width="64" Height="64" Margin="0,16,0,0" Data="{StaticResource Icons.Submodule}" Fill="{DynamicResource Brush.FG2}"/>
-                <SelectableTextBlock Margin="0,16,0,0" Text="{Binding SHA}" HorizontalAlignment="Center" Foreground="{DynamicResource Brush.FG2}"/>
+                <v:CommitBaseInfo Margin="0,16,0,0" CanNavigate="False" Content="{Binding Commit}" Message="{Binding FullMessage}"/>
               </StackPanel>
             </DataTemplate>
           </ContentControl.DataTemplates>