refactor<CommitDetail>: move revision files to anthor view

src/Commands/Command.cs

@@ -7,9 +7,9 @@ using System.Text.RegularExpressions;
 namespace SourceGit.Commands {
 
     /// <summary>
-    ///     取消命令执行的对象
+    ///     用于取消命令执行的上下文对象
     /// </summary>
-    public class Cancellable {
+    public class Context {
         public bool IsCancelRequested { get; set; } = false;
     }
 
@@ -27,6 +27,11 @@ namespace SourceGit.Commands {
             public string Error { get; set; }
         }
 
+        /// <summary>
+        ///     上下文
+        /// </summary>
+        public Context Ctx { get; set; } = null;
+
         /// <summary>
         ///     运行路径
         /// </summary>
@@ -42,11 +47,6 @@ namespace SourceGit.Commands {
         /// </summary>
         public bool TraitErrorAsOutput { get; set; } = false;
 
-        /// <summary>
-        ///     用于取消命令指行的Token
-        /// </summary>
-        public Cancellable Token { get; set; } = null;
-
         /// <summary>
         ///     运行
         /// </summary>
@@ -69,7 +69,7 @@ namespace SourceGit.Commands {
             var isCancelled = false;
 
             proc.OutputDataReceived += (o, e) => {
-                if (Token != null && Token.IsCancelRequested) {
+                if (Ctx != null && Ctx.IsCancelRequested) {
                     isCancelled = true;
                     proc.CancelErrorRead();
                     proc.CancelOutputRead();
@@ -85,7 +85,7 @@ namespace SourceGit.Commands {
                 OnReadline(e.Data);
             };
             proc.ErrorDataReceived += (o, e) => {
-                if (Token != null && Token.IsCancelRequested) {
+                if (Ctx != null && Ctx.IsCancelRequested) {
                     isCancelled = true;
                     proc.CancelErrorRead();
                     proc.CancelOutputRead();

src/Views/Widgets/CommitChanges.xaml.cs

@@ -211,21 +211,9 @@ namespace SourceGit.Views.Widgets {
                     ev.Handled = true;
                 };
 
-                var saveAs = new MenuItem();
-                saveAs.Header = App.Text("SaveAs");
-                saveAs.Visibility = range.Count == 1 ? Visibility.Visible : Visibility.Collapsed;
-                saveAs.Click += (obj, ev) => {
-                    FolderBrowser.Open(null, App.Text("SaveFileTo"), saveTo => {
-                        var full = Path.Combine(saveTo, Path.GetFileName(path));
-                        new Commands.SaveRevisionFile(repo, path, range[0].SHA, full).Exec();
-                    });
-                    ev.Handled = true;
-                };
-
                 menu.Items.Add(history);
                 menu.Items.Add(blame);
                 menu.Items.Add(explore);
-                menu.Items.Add(saveAs);
             }
 
             var copyPath = new MenuItem();

src/Views/Widgets/CommitDetail.xaml

@@ -4,18 +4,10 @@
              xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006" 
              xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
              xmlns:controls="clr-namespace:SourceGit.Views.Controls"
-             xmlns:converters="clr-namespace:SourceGit.Views.Converters"
              xmlns:models="clr-namespace:SourceGit.Models"
              xmlns:widgets="clr-namespace:SourceGit.Views.Widgets"
              mc:Ignorable="d" 
              d:DesignHeight="450" d:DesignWidth="800">    
-    <UserControl.Resources>
-        <Style x:Key="Style.DataGridRow.TextPreview" TargetType="{x:Type DataGridRow}" BasedOn="{StaticResource Style.DataGridRow}">
-            <EventSetter Event="RequestBringIntoView" Handler="OnRequestBringIntoView"/>
-        </Style>
-        <converters:PureFileName x:Key="PureFileName"/>
-    </UserControl.Resources>
-    
     <TabControl>
         <TabItem Header="{StaticResource Text.CommitViewer.Info}">            
             <Grid>
@@ -209,7 +201,7 @@
                         RowHeight="24"
                         Margin="11,0,0,2">
                         <DataGrid.RowStyle>
-                            <Style TargetType="{x:Type DataGridRow}" BasedOn="{StaticResource Style.DataGridRow.TextPreview}">
+                            <Style TargetType="{x:Type DataGridRow}" BasedOn="{StaticResource Style.DataGridRow}">
                                 <EventSetter Event="ContextMenuOpening" Handler="OnChangeListContextMenuOpening"/>
                             </Style>
                         </DataGrid.RowStyle>
@@ -241,104 +233,7 @@
 
         <!-- Revision Files -->
         <TabItem Header="{StaticResource Text.CommitViewer.Files}">
-            <Grid>
+            <widgets:RevisionFiles x:Name="revisionFiles"/>
-                <Grid.ColumnDefinitions>
-                    <ColumnDefinition Width="200" MinWidth="200" MaxWidth="400"/>
-                    <ColumnDefinition Width="1"/>
-                    <ColumnDefinition Width="*"/>
-                </Grid.ColumnDefinitions>
-
-                <Border Grid.Column="0" Background="{StaticResource Brush.Contents}" BorderBrush="{StaticResource Brush.Border2}" BorderThickness="1">
-                    <controls:Tree 
-                        x:Name="treeFiles" 
-                        FontFamily="Consolas" 
-                        SelectionChanged="OnFilesSelectionChanged" 
-                        ContextMenuOpening="OnFilesContextMenuOpening">
-                        <controls:Tree.ItemTemplate>
-                            <HierarchicalDataTemplate ItemsSource="{Binding Children}">
-                                <StackPanel Orientation="Horizontal" Height="24">
-                                    <Path x:Name="Icon" Width="14" Height="14" Data="{StaticResource Icon.File}"/>
-                                    <TextBlock Margin="6,0,0,0" FontSize="11" Text="{Binding Path, Converter={StaticResource PureFileName}}"/>
-                                </StackPanel>
-
-                                <HierarchicalDataTemplate.Triggers>
-                                    <DataTrigger Binding="{Binding IsFolder}" Value="True">
-                                        <Setter TargetName="Icon" Property="Fill" Value="Goldenrod"/>
-                                        <Setter TargetName="Icon" Property="Opacity" Value="1"/>
-                                    </DataTrigger>
-                                    <MultiDataTrigger>
-                                        <MultiDataTrigger.Conditions>
-                                            <Condition Binding="{Binding IsFolder}" Value="True"/>
-                                            <Condition Binding="{Binding RelativeSource={RelativeSource AncestorType={x:Type controls:TreeItem}}, Path=IsExpanded}" Value="False"/>
-                                        </MultiDataTrigger.Conditions>
-                                        <Setter TargetName="Icon" Property="Data" Value="{StaticResource Icon.Folder.Fill}"/>
-                                    </MultiDataTrigger>
-                                    <MultiDataTrigger>
-                                        <MultiDataTrigger.Conditions>
-                                            <Condition Binding="{Binding IsFolder}" Value="True"/>
-                                            <Condition Binding="{Binding RelativeSource={RelativeSource AncestorType={x:Type controls:TreeItem}}, Path=IsExpanded}" Value="True"/>
-                                        </MultiDataTrigger.Conditions>
-                                        <Setter TargetName="Icon" Property="Data" Value="{StaticResource Icon.Folder.Open}"/>
-                                    </MultiDataTrigger>
-                                </HierarchicalDataTemplate.Triggers>
-                            </HierarchicalDataTemplate>
-                        </controls:Tree.ItemTemplate>
-                    </controls:Tree>
-                </Border>
-
-                <GridSplitter Grid.Column="1" Width="1" HorizontalAlignment="Center" VerticalAlignment="Stretch" Background="Transparent"/>
-
-                <Border Grid.Column="2" BorderBrush="{StaticResource Brush.Border2}" BorderThickness="1" Margin="2,0">
-                    <Grid>
-                        <Grid x:Name="layerTextPreview" Visibility="Collapsed" SizeChanged="OnTextPreviewSizeChanged">
-                            <DataGrid
-                                x:Name="txtPreviewData"
-                                FontFamily="Consolas"
-                                RowHeight="16"
-                                RowStyle="{StaticResource Style.DataGridRow.TextPreview}"
-                                FrozenColumnCount="1"
-                                ContextMenuOpening="OnTextPreviewContextMenuOpening"
-                                SelectionMode="Extended"
-                                SelectionUnit="FullRow">
-                                <DataGrid.Columns>
-                                    <DataGridTextColumn Binding="{Binding Number}" ElementStyle="{StaticResource Style.TextBlock.LineNumber}"/>
-                                    <DataGridTextColumn Binding="{Binding Data}" ElementStyle="{StaticResource Style.TextBlock.LineContent}"/>
-                                </DataGrid.Columns>
-                            </DataGrid>
-
-                            <Rectangle x:Name="txtPreviewSplitter" Width="1" Fill="{StaticResource Brush.Border2}" HorizontalAlignment="Left"/>
-                        </Grid>
-
-                        <ScrollViewer 
-                            x:Name="layerImagePreview" 
-                            HorizontalScrollBarVisibility="Auto" VerticalScrollBarVisibility="Auto"
-                            Visibility="Collapsed">
-                            <Image 
-                                x:Name="imgPreviewData" 
-                                Width="Auto" Height="Auto"
-                                HorizontalAlignment="Center" VerticalAlignment="Center"/>
-                        </ScrollViewer>
-
-                        <StackPanel 
-                            x:Name="layerRevisionPreview" 
-                            Orientation="Vertical" 
-                            VerticalAlignment="Center" HorizontalAlignment="Center" 
-                            Visibility="Collapsed">
-                            <Path x:Name="iconRevisionPreview" Width="64" Height="64" Data="{StaticResource Icon.Submodule}" Fill="{StaticResource Brush.FG2}"/>
-                            <TextBlock x:Name="txtRevisionPreview" Margin="0,16,0,0" FontFamily="Consolas" FontSize="18" FontWeight="UltraBold" HorizontalAlignment="Center" Foreground="{StaticResource Brush.FG2}"/>
-                        </StackPanel>
-                        
-                        <StackPanel 
-                            x:Name="layerBinaryPreview" 
-                            Orientation="Vertical" 
-                            VerticalAlignment="Center" HorizontalAlignment="Center" 
-                            Visibility="Collapsed">
-                            <Path Width="64" Height="64" Data="{StaticResource Icon.Error}" Fill="{StaticResource Brush.FG2}"/>
-                            <TextBlock Margin="0,16,0,0" Text="{StaticResource Text.BinaryNotSupported}" FontFamily="Consolas" FontSize="18" FontWeight="UltraBold" HorizontalAlignment="Center" Foreground="{StaticResource Brush.FG2}"/>
-                        </StackPanel>
-                    </Grid>
-                </Border>
-            </Grid>
         </TabItem>
     </TabControl>
 </UserControl>

src/Views/Widgets/CommitDetail.xaml.cs

@@ -1,14 +1,9 @@
-using System;
 using System.Collections.Generic;
 using System.Diagnostics;
-using System.Globalization;
 using System.IO;
-using System.Text;
 using System.Threading.Tasks;
 using System.Windows;
 using System.Windows.Controls;
-using System.Windows.Media;
-using System.Windows.Media.Imaging;
 using System.Windows.Navigation;
 
 namespace SourceGit.Views.Widgets {
@@ -19,18 +14,7 @@ namespace SourceGit.Views.Widgets {
     public partial class CommitDetail : UserControl {
         private string repo = null;
         private Models.Commit commit = null;
-        private Commands.Cancellable cancelToken = new Commands.Cancellable();
+        private Commands.Context cancelToken = new Commands.Context();
-
-        /// <summary>
-        ///     文件列表树节点
-        /// </summary>
-        public class FileNode {
-            public Models.ObjectType Type { get; set; } = Models.ObjectType.None;
-            public string Path { get; set; } = "";
-            public string SHA { get; set; } = null;
-            public bool IsFolder => Type == Models.ObjectType.None;
-            public List<FileNode> Children { get; set; } = new List<FileNode>();
-        }
 
         public CommitDetail() {
             InitializeComponent();
@@ -38,14 +22,14 @@ namespace SourceGit.Views.Widgets {
 
         public void SetData(string repo, Models.Commit commit) {
             cancelToken.IsCancelRequested = true;
-            cancelToken = new Commands.Cancellable();
+            cancelToken = new Commands.Context();
 
             this.repo = repo;
             this.commit = commit;
 
+            revisionFiles.SetData(repo, commit.SHA, cancelToken);
             UpdateInformation(commit);
             UpdateChanges();
-            UpdateRevisionFiles();
         }
 
         #region DATA
@@ -91,10 +75,10 @@ namespace SourceGit.Views.Widgets {
         }
 
         private void UpdateChanges() {
-            var cmd = new Commands.CommitChanges(repo, commit.SHA) { Token = cancelToken };
+            var cmd = new Commands.CommitChanges(repo, commit.SHA) { Ctx = cancelToken };
             Task.Run(() => {
                 var changes = cmd.Result();
-                if (cmd.Token.IsCancelRequested) return;
+                if (cmd.Ctx.IsCancelRequested) return;
 
                 Dispatcher.Invoke(() => {
                     changeList.ItemsSource = changes;
@@ -102,90 +86,6 @@ namespace SourceGit.Views.Widgets {
                 });
             });
         }
-
-        private void SortFileNodes(List<FileNode> nodes) {
-            nodes.Sort((l, r) => {
-                if (l.IsFolder == r.IsFolder) {
-                    return l.Path.CompareTo(r.Path);
-                } else {
-                    return l.IsFolder ? -1 : 1;
-                }
-            });
-
-            foreach (var node in nodes) {
-                if (node.Children.Count > 1) SortFileNodes(node.Children);
-            }
-        }
-
-        private void UpdateRevisionFiles() {
-            var cmd = new Commands.RevisionObjects(repo, commit.SHA) { Token = cancelToken };
-            Task.Run(() => {
-                var objects = cmd.Result();
-                if (cmd.Token.IsCancelRequested) return;
-
-                var nodes = new List<FileNode>();
-                var folders = new Dictionary<string, FileNode>();
-
-                foreach (var obj in objects) {
-                    var sepIdx = obj.Path.IndexOf('/');
-                    if (sepIdx == -1) {
-                        nodes.Add(new FileNode() {
-                            Type = obj.Type,
-                            Path = obj.Path,
-                            SHA = obj.SHA,
-                        });
-                    } else {
-                        FileNode lastFolder = null;
-                        var start = 0;
-
-                        while (sepIdx != -1) {
-                            var folder = obj.Path.Substring(0, sepIdx);
-                            if (folders.ContainsKey(folder)) {
-                                lastFolder = folders[folder];
-                            } else if (lastFolder == null) {
-                                lastFolder = new FileNode() {
-                                    Type = Models.ObjectType.None,
-                                    Path = folder,
-                                    SHA = null,
-                                };
-                                nodes.Add(lastFolder);
-                                folders.Add(folder, lastFolder);
-                            } else {
-                                var cur = new FileNode() {
-                                    Type = Models.ObjectType.None,
-                                    Path = folder,
-                                    SHA = null,
-                                };
-                                folders.Add(folder, cur);
-                                lastFolder.Children.Add(cur);
-                                lastFolder = cur;
-                            }
-
-                            start = sepIdx + 1;
-                            sepIdx = obj.Path.IndexOf('/', start);
-                        }
-
-                        lastFolder.Children.Add(new FileNode() {
-                            Type = obj.Type,
-                            Path = obj.Path,
-                            SHA = obj.SHA,
-                        });
-                    }
-
-                    obj.Path = null;
-                }
-
-                folders.Clear();
-                objects.Clear();
-
-                SortFileNodes(nodes);
-
-                Dispatcher.Invoke(() => {
-                    treeFiles.ItemsSource = nodes;
-                    GC.Collect();
-                });
-            });
-        }
         #endregion
 
         #region INFORMATION
@@ -201,214 +101,48 @@ namespace SourceGit.Views.Widgets {
             if (change == null) return;
 
             var menu = new ContextMenu();
-            FillContextMenu(menu, change.Path, change.Index == Models.Change.Status.Deleted, true);
+            if (change.Index != Models.Change.Status.Deleted) {
-            menu.IsOpen = true;
-            e.Handled = true;
-        }
-        #endregion
-
-        #region REVISION_FILES
-        private bool IsImageFile(string path) {
-            return path.EndsWith(".png") ||
-                path.EndsWith(".jpg") ||
-                path.EndsWith(".jpeg") ||
-                path.EndsWith(".ico") ||
-                path.EndsWith(".bmp") ||
-                path.EndsWith(".tiff") ||
-                path.EndsWith(".gif");
-        }
-
-        private void LayoutTextPreview(List<Models.TextLine> lines) {
-            var font = new FontFamily("Consolas");
-
-            var maxLineNumber = $"{lines.Count + 1}";
-            var formatted = new FormattedText(
-                maxLineNumber,
-                CultureInfo.CurrentCulture,
-                FlowDirection.LeftToRight,
-                new Typeface(font, FontStyles.Normal, FontWeights.Normal, FontStretches.Normal),
-                12.0,
-                Brushes.Black,
-                VisualTreeHelper.GetDpi(this).PixelsPerDip);
-
-            var offset = formatted.Width + 16;
-            if (lines.Count * 16 > layerTextPreview.ActualHeight) offset += 8;
-
-            txtPreviewData.ItemsSource = lines;
-            txtPreviewData.Columns[0].Width = new DataGridLength(formatted.Width + 16, DataGridLengthUnitType.Pixel);
-            txtPreviewData.Columns[1].Width = DataGridLength.Auto;
-            txtPreviewData.Columns[1].Width = DataGridLength.SizeToCells;
-            txtPreviewData.Columns[1].MinWidth = layerTextPreview.ActualWidth - offset;
-
-            txtPreviewSplitter.Margin = new Thickness(formatted.Width + 15, 0, 0, 0);
-        }
-
-        private void OnTextPreviewSizeChanged(object sender, SizeChangedEventArgs e) {
-            if (txtPreviewData == null) return;
-
-            var offset = txtPreviewData.NonFrozenColumnsViewportHorizontalOffset;
-            if (txtPreviewData.Items.Count * 16 > layerTextPreview.ActualHeight) offset += 8;
-
-            txtPreviewData.Columns[1].Width = DataGridLength.Auto;
-            txtPreviewData.Columns[1].Width = DataGridLength.SizeToCells;
-            txtPreviewData.Columns[1].MinWidth = layerTextPreview.ActualWidth - offset;
-            txtPreviewData.UpdateLayout();
-        }
-
-        private void OnTextPreviewContextMenuOpening(object sender, ContextMenuEventArgs e) {
-            var grid = sender as DataGrid;
-            if (grid == null) return;
-
-            var menu = new ContextMenu();
-
-            var copyIcon = new System.Windows.Shapes.Path();
-            copyIcon.Data = FindResource("Icon.Copy") as Geometry;
-            copyIcon.Width = 10;
-
-            var copy = new MenuItem();
-            copy.Header = "Copy";
-            copy.Icon = copyIcon;
-            copy.Click += (o, ev) => {
-                var items = grid.SelectedItems;
-                if (items.Count == 0) return;
-
-                var builder = new StringBuilder();
-                foreach (var item in items) {
-                    var line = item as Models.TextLine;
-                    if (line == null) continue;
-
-                    builder.Append(line.Data);
-                    builder.AppendLine();
-                }
-
-                Clipboard.SetText(builder.ToString());
-            };
-            menu.Items.Add(copy);
-            menu.IsOpen = true;
-            e.Handled = true;
-        }
-
-        private void OnFilesSelectionChanged(object sender, RoutedEventArgs e) {
-            layerTextPreview.Visibility = Visibility.Collapsed;
-            layerImagePreview.Visibility = Visibility.Collapsed;
-            layerRevisionPreview.Visibility = Visibility.Collapsed;
-            layerBinaryPreview.Visibility = Visibility.Collapsed;
-            txtPreviewData.ItemsSource = null;
-
-            if (treeFiles.Selected.Count == 0) return;
-
-            var node = treeFiles.Selected[0] as FileNode;
-            switch (node.Type) {
-            case Models.ObjectType.Blob:
-                if (IsImageFile(node.Path)) {
-                    var tmp = Path.GetTempFileName();
-                    new Commands.SaveRevisionFile(repo, node.Path, commit.SHA, tmp).Exec();
-
-                    layerImagePreview.Visibility = Visibility.Visible;
-                    imgPreviewData.Source = new BitmapImage(new Uri(tmp, UriKind.Absolute));
-                } else if (new Commands.IsLFSFiltered(repo, node.Path).Result()) {
-                    var lfs = new Commands.QueryLFSObject(repo, commit.SHA, node.Path).Result();
-                    layerRevisionPreview.Visibility = Visibility.Visible;
-                    iconRevisionPreview.Data = FindResource("Icon.LFS") as Geometry;
-                    txtRevisionPreview.Text = "LFS SIZE: " + App.Text("Bytes", lfs.Size);
-                } else if (new Commands.IsBinaryFile(repo, commit.SHA, node.Path).Result()) {
-                    layerBinaryPreview.Visibility = Visibility.Visible;
-                } else {
-                    layerTextPreview.Visibility = Visibility.Visible;
-                    Task.Run(() => {
-                        var lines = new Commands.QueryFileContent(repo, commit.SHA, node.Path).Result();
-                        Dispatcher.Invoke(() => LayoutTextPreview(lines));
-                    });
-                }
-                break;
-            case Models.ObjectType.Tag:
-                layerRevisionPreview.Visibility = Visibility.Visible;
-                iconRevisionPreview.Data = FindResource("Icon.Tag") as Geometry;
-                txtRevisionPreview.Text = "TAG: " + node.SHA;
-                break;
-            case Models.ObjectType.Commit:
-                layerRevisionPreview.Visibility = Visibility.Visible;
-                iconRevisionPreview.Data = FindResource("Icon.Submodule") as Geometry;
-                txtRevisionPreview.Text = "SUBMODULE: " + node.SHA;
-                break;
-            case Models.ObjectType.Tree:
-                layerRevisionPreview.Visibility = Visibility.Visible;
-                iconRevisionPreview.Data = FindResource("Icon.Tree") as Geometry;
-                txtRevisionPreview.Text = "TREE: " + node.SHA;
-                break;
-            default:
-                return;
-            }
-        }
-
-        private void OnFilesContextMenuOpening(object sender, ContextMenuEventArgs e) {
-            var item = treeFiles.FindItem(e.OriginalSource as DependencyObject);
-            if (item == null) return;
-
-            var node = item.DataContext as FileNode;
-            if (node == null || node.IsFolder) return;
-
-            var menu = new ContextMenu();
-            FillContextMenu(menu, node.Path, false, node.Type == Models.ObjectType.Blob);
-            menu.IsOpen = true;
-            e.Handled = true;
-        }
-        #endregion
-
-        #region COMMON
-        private void FillContextMenu(ContextMenu menu, string path, bool isDeleted, bool canSave) {
-            if (!isDeleted) {
                 var history = new MenuItem();
                 history.Header = App.Text("FileHistory");
+                history.IsEnabled = change.Index != Models.Change.Status.Deleted;
                 history.Click += (o, ev) => {
-                    var viewer = new Views.Histories(repo, path);
+                    var viewer = new Views.Histories(repo, change.Path);
                     viewer.Show();
                     ev.Handled = true;
                 };
 
                 var blame = new MenuItem();
                 blame.Header = App.Text("Blame");
+                blame.IsEnabled = change.Index != Models.Change.Status.Deleted;
                 blame.Click += (obj, ev) => {
-                    var viewer = new Blame(repo, path, commit.SHA);
+                    var viewer = new Blame(repo, change.Path, commit.SHA);
                     viewer.Show();
                     ev.Handled = true;
                 };
 
                 var explore = new MenuItem();
                 explore.Header = App.Text("RevealFile");
+                explore.IsEnabled = change.Index != Models.Change.Status.Deleted;
                 explore.Click += (o, ev) => {
-                    var full = Path.GetFullPath(repo + "\\" + path);
+                    var full = Path.GetFullPath(repo + "\\" + change.Path);
                     Process.Start("explorer", $"/select,{full}");
                     ev.Handled = true;
                 };
 
-                var saveAs = new MenuItem();
-                saveAs.Header = App.Text("SaveAs");
-                saveAs.IsEnabled = canSave;
-                saveAs.Click += (obj, ev) => {
-                    FolderBrowser.Open(null, App.Text("SaveFileTo"), saveTo => {
-                        var full = Path.Combine(saveTo, Path.GetFileName(path));
-                        new Commands.SaveRevisionFile(repo, path, commit.SHA, full).Exec();
-                    });
-                    ev.Handled = true;
-                };
-
                 menu.Items.Add(history);
                 menu.Items.Add(blame);
                 menu.Items.Add(explore);
-                menu.Items.Add(saveAs);
             }
 
             var copyPath = new MenuItem();
             copyPath.Header = App.Text("CopyPath");
             copyPath.Click += (obj, ev) => {
-                Clipboard.SetText(path);
+                Clipboard.SetText(change.Path);
+                ev.Handled = true;
             };
-
             menu.Items.Add(copyPath);
-        }
 
-        private void OnRequestBringIntoView(object sender, RequestBringIntoViewEventArgs e) {
+            menu.IsOpen = true;
             e.Handled = true;
         }
         #endregion

src/Views/Widgets/RevisionFiles.xaml

@@ -0,0 +1,115 @@
+<UserControl x:Class="SourceGit.Views.Widgets.RevisionFiles"
+             xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
+             xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
+             xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006" 
+             xmlns:d="http://schemas.microsoft.com/expression/blend/2008" 
+             xmlns:controls="clr-namespace:SourceGit.Views.Controls"
+             xmlns:converters="clr-namespace:SourceGit.Views.Converters"
+             mc:Ignorable="d" 
+             d:DesignHeight="450" d:DesignWidth="800">
+    <UserControl.Resources>
+        <Style x:Key="Style.DataGridRow.TextPreview" TargetType="{x:Type DataGridRow}" BasedOn="{StaticResource Style.DataGridRow}">
+            <EventSetter Event="RequestBringIntoView" Handler="OnRequestBringIntoView"/>
+        </Style>
+        <converters:PureFileName x:Key="PureFileName"/>
+    </UserControl.Resources>
+    
+    <Grid>
+        <Grid.ColumnDefinitions>
+            <ColumnDefinition Width="200" MinWidth="200" MaxWidth="400"/>
+            <ColumnDefinition Width="1"/>
+            <ColumnDefinition Width="*"/>
+        </Grid.ColumnDefinitions>
+
+        <Border Grid.Column="0" Background="{StaticResource Brush.Contents}" BorderBrush="{StaticResource Brush.Border2}" BorderThickness="1">
+            <controls:Tree 
+                x:Name="treeFiles" 
+                FontFamily="Consolas" 
+                SelectionChanged="OnFilesSelectionChanged" 
+                ContextMenuOpening="OnFilesContextMenuOpening">
+                <controls:Tree.ItemTemplate>
+                    <HierarchicalDataTemplate ItemsSource="{Binding Children}">
+                        <StackPanel Orientation="Horizontal" Height="24">
+                            <Path x:Name="Icon" Width="14" Height="14" Data="{StaticResource Icon.File}"/>
+                            <TextBlock Margin="6,0,0,0" FontSize="11" Text="{Binding Path, Converter={StaticResource PureFileName}}"/>
+                        </StackPanel>
+
+                        <HierarchicalDataTemplate.Triggers>
+                            <DataTrigger Binding="{Binding IsFolder}" Value="True">
+                                <Setter TargetName="Icon" Property="Fill" Value="Goldenrod"/>
+                                <Setter TargetName="Icon" Property="Opacity" Value="1"/>
+                            </DataTrigger>
+                            <MultiDataTrigger>
+                                <MultiDataTrigger.Conditions>
+                                    <Condition Binding="{Binding IsFolder}" Value="True"/>
+                                    <Condition Binding="{Binding RelativeSource={RelativeSource AncestorType={x:Type controls:TreeItem}}, Path=IsExpanded}" Value="False"/>
+                                </MultiDataTrigger.Conditions>
+                                <Setter TargetName="Icon" Property="Data" Value="{StaticResource Icon.Folder.Fill}"/>
+                            </MultiDataTrigger>
+                            <MultiDataTrigger>
+                                <MultiDataTrigger.Conditions>
+                                    <Condition Binding="{Binding IsFolder}" Value="True"/>
+                                    <Condition Binding="{Binding RelativeSource={RelativeSource AncestorType={x:Type controls:TreeItem}}, Path=IsExpanded}" Value="True"/>
+                                </MultiDataTrigger.Conditions>
+                                <Setter TargetName="Icon" Property="Data" Value="{StaticResource Icon.Folder.Open}"/>
+                            </MultiDataTrigger>
+                        </HierarchicalDataTemplate.Triggers>
+                    </HierarchicalDataTemplate>
+                </controls:Tree.ItemTemplate>
+            </controls:Tree>
+        </Border>
+
+        <GridSplitter Grid.Column="1" Width="1" HorizontalAlignment="Center" VerticalAlignment="Stretch" Background="Transparent"/>
+
+        <Border Grid.Column="2" BorderBrush="{StaticResource Brush.Border2}" BorderThickness="1" Margin="2,0">
+            <Grid>
+                <Grid x:Name="layerTextPreview" Visibility="Collapsed" SizeChanged="OnTextPreviewSizeChanged">
+                    <DataGrid
+                        x:Name="txtPreviewData"
+                        FontFamily="Consolas"
+                        RowHeight="16"
+                        RowStyle="{StaticResource Style.DataGridRow.TextPreview}"
+                        FrozenColumnCount="1"
+                        ContextMenuOpening="OnTextPreviewContextMenuOpening"
+                        SelectionMode="Extended"
+                        SelectionUnit="FullRow">
+                        <DataGrid.Columns>
+                            <DataGridTextColumn Binding="{Binding Number}" ElementStyle="{StaticResource Style.TextBlock.LineNumber}"/>
+                            <DataGridTextColumn Binding="{Binding Data}" ElementStyle="{StaticResource Style.TextBlock.LineContent}"/>
+                        </DataGrid.Columns>
+                    </DataGrid>
+
+                    <Rectangle x:Name="txtPreviewSplitter" Width="1" Fill="{StaticResource Brush.Border2}" HorizontalAlignment="Left"/>
+                </Grid>
+
+                <ScrollViewer 
+                    x:Name="layerImagePreview" 
+                    HorizontalScrollBarVisibility="Auto" VerticalScrollBarVisibility="Auto"
+                    Visibility="Collapsed">
+                    <Image 
+                        x:Name="imgPreviewData" 
+                        Width="Auto" Height="Auto"
+                        HorizontalAlignment="Center" VerticalAlignment="Center"/>
+                </ScrollViewer>
+
+                <StackPanel 
+                    x:Name="layerRevisionPreview" 
+                    Orientation="Vertical" 
+                    VerticalAlignment="Center" HorizontalAlignment="Center" 
+                    Visibility="Collapsed">
+                    <Path x:Name="iconRevisionPreview" Width="64" Height="64" Data="{StaticResource Icon.Submodule}" Fill="{StaticResource Brush.FG2}"/>
+                    <TextBlock x:Name="txtRevisionPreview" Margin="0,16,0,0" FontFamily="Consolas" FontSize="18" FontWeight="UltraBold" HorizontalAlignment="Center" Foreground="{StaticResource Brush.FG2}"/>
+                </StackPanel>
+
+                <StackPanel 
+                    x:Name="layerBinaryPreview" 
+                    Orientation="Vertical" 
+                    VerticalAlignment="Center" HorizontalAlignment="Center" 
+                    Visibility="Collapsed">
+                    <Path Width="64" Height="64" Data="{StaticResource Icon.Error}" Fill="{StaticResource Brush.FG2}"/>
+                    <TextBlock Margin="0,16,0,0" Text="{StaticResource Text.BinaryNotSupported}" FontFamily="Consolas" FontSize="18" FontWeight="UltraBold" HorizontalAlignment="Center" Foreground="{StaticResource Brush.FG2}"/>
+                </StackPanel>
+            </Grid>
+        </Border>
+    </Grid>
+</UserControl>

src/Views/Widgets/RevisionFiles.xaml.cs

@@ -0,0 +1,322 @@
+using System;
+using System.Collections.Generic;
+using System.Diagnostics;
+using System.Globalization;
+using System.IO;
+using System.Text;
+using System.Threading.Tasks;
+using System.Windows;
+using System.Windows.Controls;
+using System.Windows.Media;
+using System.Windows.Media.Imaging;
+
+namespace SourceGit.Views.Widgets {
+    /// <summary>
+    ///     提交信息面板中的文件列表分页
+    /// </summary>
+    public partial class RevisionFiles : UserControl {
+        private string repo = null;
+        private string sha = null;
+
+        /// <summary>
+        ///     文件列表树节点
+        /// </summary>
+        public class FileNode {
+            public Models.ObjectType Type { get; set; } = Models.ObjectType.None;
+            public string Path { get; set; } = "";
+            public string SHA { get; set; } = null;
+            public bool IsFolder => Type == Models.ObjectType.None;
+            public List<FileNode> Children { get; set; } = new List<FileNode>();
+        }
+
+        public RevisionFiles() {
+            InitializeComponent();
+        }
+
+        public void SetData(string repo, string sha, Commands.Context cancelToken) {
+            this.repo = repo;
+            this.sha = sha;
+
+            var cmd = new Commands.RevisionObjects(repo, sha) { Ctx = cancelToken };
+            Task.Run(() => {
+                var objects = cmd.Result();
+                if (cmd.Ctx.IsCancelRequested) return;
+
+                var nodes = new List<FileNode>();
+                var folders = new Dictionary<string, FileNode>();
+
+                foreach (var obj in objects) {
+                    var sepIdx = obj.Path.IndexOf('/');
+                    if (sepIdx == -1) {
+                        nodes.Add(new FileNode() {
+                            Type = obj.Type,
+                            Path = obj.Path,
+                            SHA = obj.SHA,
+                        });
+                    } else {
+                        FileNode lastFolder = null;
+                        var start = 0;
+
+                        while (sepIdx != -1) {
+                            var folder = obj.Path.Substring(0, sepIdx);
+                            if (folders.ContainsKey(folder)) {
+                                lastFolder = folders[folder];
+                            } else if (lastFolder == null) {
+                                lastFolder = new FileNode() {
+                                    Type = Models.ObjectType.None,
+                                    Path = folder,
+                                    SHA = null,
+                                };
+                                nodes.Add(lastFolder);
+                                folders.Add(folder, lastFolder);
+                            } else {
+                                var cur = new FileNode() {
+                                    Type = Models.ObjectType.None,
+                                    Path = folder,
+                                    SHA = null,
+                                };
+                                folders.Add(folder, cur);
+                                lastFolder.Children.Add(cur);
+                                lastFolder = cur;
+                            }
+
+                            start = sepIdx + 1;
+                            sepIdx = obj.Path.IndexOf('/', start);
+                        }
+
+                        lastFolder.Children.Add(new FileNode() {
+                            Type = obj.Type,
+                            Path = obj.Path,
+                            SHA = obj.SHA,
+                        });
+                    }
+
+                    obj.Path = null;
+                }
+
+                folders.Clear();
+                objects.Clear();
+
+                SortFileNodes(nodes);
+
+                Dispatcher.Invoke(() => {
+                    treeFiles.ItemsSource = nodes;
+                    GC.Collect();
+                });
+            });
+        }
+
+        private void SortFileNodes(List<FileNode> nodes) {
+            nodes.Sort((l, r) => {
+                if (l.IsFolder == r.IsFolder) {
+                    return l.Path.CompareTo(r.Path);
+                } else {
+                    return l.IsFolder ? -1 : 1;
+                }
+            });
+
+            foreach (var node in nodes) {
+                if (node.Children.Count > 1) SortFileNodes(node.Children);
+            }
+        }
+
+        private bool IsImageFile(string path) {
+            return path.EndsWith(".png") ||
+                path.EndsWith(".jpg") ||
+                path.EndsWith(".jpeg") ||
+                path.EndsWith(".ico") ||
+                path.EndsWith(".bmp") ||
+                path.EndsWith(".tiff") ||
+                path.EndsWith(".gif");
+        }
+
+        #region EVENTS
+        private void LayoutTextPreview(List<Models.TextLine> lines) {
+            var font = new FontFamily("Consolas");
+
+            var maxLineNumber = $"{lines.Count + 1}";
+            var formatted = new FormattedText(
+                maxLineNumber,
+                CultureInfo.CurrentCulture,
+                FlowDirection.LeftToRight,
+                new Typeface(font, FontStyles.Normal, FontWeights.Normal, FontStretches.Normal),
+                12.0,
+                Brushes.Black,
+                VisualTreeHelper.GetDpi(this).PixelsPerDip);
+
+            var offset = formatted.Width + 16;
+            if (lines.Count * 16 > layerTextPreview.ActualHeight) offset += 8;
+
+            txtPreviewData.ItemsSource = lines;
+            txtPreviewData.Columns[0].Width = new DataGridLength(formatted.Width + 16, DataGridLengthUnitType.Pixel);
+            txtPreviewData.Columns[1].Width = DataGridLength.Auto;
+            txtPreviewData.Columns[1].Width = DataGridLength.SizeToCells;
+            txtPreviewData.Columns[1].MinWidth = layerTextPreview.ActualWidth - offset;
+
+            txtPreviewSplitter.Margin = new Thickness(formatted.Width + 15, 0, 0, 0);
+        }
+
+        private void OnTextPreviewSizeChanged(object sender, SizeChangedEventArgs e) {
+            if (txtPreviewData == null) return;
+
+            var offset = txtPreviewData.NonFrozenColumnsViewportHorizontalOffset;
+            if (txtPreviewData.Items.Count * 16 > layerTextPreview.ActualHeight) offset += 8;
+
+            txtPreviewData.Columns[1].Width = DataGridLength.Auto;
+            txtPreviewData.Columns[1].Width = DataGridLength.SizeToCells;
+            txtPreviewData.Columns[1].MinWidth = layerTextPreview.ActualWidth - offset;
+            txtPreviewData.UpdateLayout();
+        }
+
+        private void OnTextPreviewContextMenuOpening(object sender, ContextMenuEventArgs e) {
+            var grid = sender as DataGrid;
+            if (grid == null) return;
+
+            var menu = new ContextMenu();
+
+            var copyIcon = new System.Windows.Shapes.Path();
+            copyIcon.Data = FindResource("Icon.Copy") as Geometry;
+            copyIcon.Width = 10;
+
+            var copy = new MenuItem();
+            copy.Header = "Copy";
+            copy.Icon = copyIcon;
+            copy.Click += (o, ev) => {
+                var items = grid.SelectedItems;
+                if (items.Count == 0) return;
+
+                var builder = new StringBuilder();
+                foreach (var item in items) {
+                    var line = item as Models.TextLine;
+                    if (line == null) continue;
+
+                    builder.Append(line.Data);
+                    builder.AppendLine();
+                }
+
+                Clipboard.SetText(builder.ToString());
+            };
+            menu.Items.Add(copy);
+            menu.IsOpen = true;
+            e.Handled = true;
+        }
+
+        private void OnFilesSelectionChanged(object sender, RoutedEventArgs e) {
+            layerTextPreview.Visibility = Visibility.Collapsed;
+            layerImagePreview.Visibility = Visibility.Collapsed;
+            layerRevisionPreview.Visibility = Visibility.Collapsed;
+            layerBinaryPreview.Visibility = Visibility.Collapsed;
+            txtPreviewData.ItemsSource = null;
+
+            if (treeFiles.Selected.Count == 0) return;
+
+            var node = treeFiles.Selected[0] as FileNode;
+            switch (node.Type) {
+            case Models.ObjectType.Blob:
+                if (IsImageFile(node.Path)) {
+                    var tmp = Path.GetTempFileName();
+                    new Commands.SaveRevisionFile(repo, node.Path, sha, tmp).Exec();
+
+                    layerImagePreview.Visibility = Visibility.Visible;
+                    imgPreviewData.Source = new BitmapImage(new Uri(tmp, UriKind.Absolute));
+                } else if (new Commands.IsLFSFiltered(repo, node.Path).Result()) {
+                    var lfs = new Commands.QueryLFSObject(repo, sha, node.Path).Result();
+                    layerRevisionPreview.Visibility = Visibility.Visible;
+                    iconRevisionPreview.Data = FindResource("Icon.LFS") as Geometry;
+                    txtRevisionPreview.Text = "LFS SIZE: " + App.Text("Bytes", lfs.Size);
+                } else if (new Commands.IsBinaryFile(repo, sha, node.Path).Result()) {
+                    layerBinaryPreview.Visibility = Visibility.Visible;
+                } else {
+                    layerTextPreview.Visibility = Visibility.Visible;
+                    Task.Run(() => {
+                        var lines = new Commands.QueryFileContent(repo, sha, node.Path).Result();
+                        Dispatcher.Invoke(() => LayoutTextPreview(lines));
+                    });
+                }
+                break;
+            case Models.ObjectType.Tag:
+                layerRevisionPreview.Visibility = Visibility.Visible;
+                iconRevisionPreview.Data = FindResource("Icon.Tag") as Geometry;
+                txtRevisionPreview.Text = "TAG: " + node.SHA;
+                break;
+            case Models.ObjectType.Commit:
+                layerRevisionPreview.Visibility = Visibility.Visible;
+                iconRevisionPreview.Data = FindResource("Icon.Submodule") as Geometry;
+                txtRevisionPreview.Text = "SUBMODULE: " + node.SHA;
+                break;
+            case Models.ObjectType.Tree:
+                layerRevisionPreview.Visibility = Visibility.Visible;
+                iconRevisionPreview.Data = FindResource("Icon.Tree") as Geometry;
+                txtRevisionPreview.Text = "TREE: " + node.SHA;
+                break;
+            default:
+                return;
+            }
+        }
+
+        private void OnFilesContextMenuOpening(object sender, ContextMenuEventArgs e) {
+            var item = treeFiles.FindItem(e.OriginalSource as DependencyObject);
+            if (item == null) return;
+
+            var node = item.DataContext as FileNode;
+            if (node == null || node.IsFolder) return;
+
+            var history = new MenuItem();
+            history.Header = App.Text("FileHistory");
+            history.Click += (o, ev) => {
+                var viewer = new Views.Histories(repo, node.Path);
+                viewer.Show();
+                ev.Handled = true;
+            };
+
+            var blame = new MenuItem();
+            blame.Header = App.Text("Blame");
+            blame.Click += (obj, ev) => {
+                var viewer = new Blame(repo, node.Path, sha);
+                viewer.Show();
+                ev.Handled = true;
+            };
+
+            var explore = new MenuItem();
+            explore.Header = App.Text("RevealFile");
+            explore.Click += (o, ev) => {
+                var full = Path.GetFullPath(repo + "\\" + node.Path);
+                Process.Start("explorer", $"/select,{full}");
+                ev.Handled = true;
+            };
+
+            var saveAs = new MenuItem();
+            saveAs.Header = App.Text("SaveAs");
+            saveAs.IsEnabled = node.Type == Models.ObjectType.Blob;
+            saveAs.Click += (obj, ev) => {
+                FolderBrowser.Open(null, App.Text("SaveFileTo"), saveTo => {
+                    var full = Path.Combine(saveTo, Path.GetFileName(node.Path));
+                    new Commands.SaveRevisionFile(repo, node.Path, sha, full).Exec();
+                });
+                ev.Handled = true;
+            };
+
+            var copyPath = new MenuItem();
+            copyPath.Header = App.Text("CopyPath");
+            copyPath.Click += (obj, ev) => {
+                Clipboard.SetText(node.Path);
+                ev.Handled = true;
+            };
+
+            var menu = new ContextMenu();
+            menu.Items.Add(history);
+            menu.Items.Add(blame);
+            menu.Items.Add(explore);
+            menu.Items.Add(saveAs);
+            menu.Items.Add(copyPath);
+
+            menu.IsOpen = true;
+            e.Handled = true;
+        }
+
+        private void OnRequestBringIntoView(object sender, RequestBringIntoViewEventArgs e) {
+            e.Handled = true;
+        }
+        #endregion
+    }
+}