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enhance: reduce memory usage by commit detail view

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leo 2024-06-07 16:32:06 +08:00
parent 78c7168a46
commit bacc1c85ad
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7 changed files with 385 additions and 496 deletions
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200
src/Views/RevisionFiles.axaml.cs
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@ -1,8 +1,12 @@
using System;
using System.Collections.Generic;
using System.IO;
using Avalonia;
using Avalonia.Controls;
using Avalonia.Controls.Models.TreeDataGrid;
using Avalonia.Controls.Primitives;
using Avalonia.Controls.Templates;
using Avalonia.Interactivity;
using Avalonia.Media;
using Avalonia.Media.Imaging;
@ -11,10 +15,155 @@ using Avalonia.Styling;
using AvaloniaEdit;
using AvaloniaEdit.Document;
using AvaloniaEdit.Editing;
using AvaloniaEdit.TextMate;
namespace SourceGit.Views
{
public class RevisionFileTreeNode
{
public Models.Object Backend { get; set; } = null;
public bool IsExpanded { get; set; } = false;
public List<RevisionFileTreeNode> Children { get; set; } = new List<RevisionFileTreeNode>();
public bool IsFolder => Backend != null && Backend.Type == Models.ObjectType.Tree;
public string Name => Backend != null ? Path.GetFileName(Backend.Path) : string.Empty;
}
public class RevisionFileTreeView : UserControl
{
public static readonly StyledProperty<string> RevisionProperty =
AvaloniaProperty.Register<RevisionFileTreeView, string>(nameof(Revision), null);
public string Revision
{
get => GetValue(RevisionProperty);
set => SetValue(RevisionProperty, value);
}
public Models.Object SelectedObject
{
get;
private set;
} = null;
protected override Type StyleKeyOverride => typeof(UserControl);
protected override void OnPropertyChanged(AvaloniaPropertyChangedEventArgs change)
{
base.OnPropertyChanged(change);
if (change.Property == RevisionProperty)
{
SelectedObject = null;
if (Content is TreeDataGrid tree && tree.Source is IDisposable disposable)
disposable.Dispose();
var vm = DataContext as ViewModels.CommitDetail;
if (vm == null)
{
Content = null;
GC.Collect();
return;
}
var objects = vm.GetRevisionFilesUnderFolder(null);
if (objects == null || objects.Count == 0)
{
Content = null;
GC.Collect();
return;
}
var toplevelObjects = new List<RevisionFileTreeNode>();
foreach (var obj in objects)
toplevelObjects.Add(new RevisionFileTreeNode() { Backend = obj });
toplevelObjects.Sort((l, r) =>
{
if (l.IsFolder == r.IsFolder)
return l.Name.CompareTo(r.Name);
return l.IsFolder ? -1 : 1;
});
var template = this.FindResource("RevisionFileTreeNodeTemplate") as IDataTemplate;
var source = new HierarchicalTreeDataGridSource<RevisionFileTreeNode>(toplevelObjects)
{
Columns =
{
new HierarchicalExpanderColumn<RevisionFileTreeNode>(
new TemplateColumn<RevisionFileTreeNode>(null, template, null, GridLength.Auto),
GetChildrenOfTreeNode,
x => x.IsFolder,
x => x.IsExpanded)
}
};
var selection = new Models.TreeDataGridSelectionModel<RevisionFileTreeNode>(source, GetChildrenOfTreeNode);
selection.SingleSelect = true;
selection.SelectionChanged += (s, _) =>
{
if (s is Models.TreeDataGridSelectionModel<RevisionFileTreeNode> model)
{
var node = model.SelectedItem;
var detail = DataContext as ViewModels.CommitDetail;
if (node != null && !node.IsFolder)
{
SelectedObject = node.Backend;
detail.ViewRevisionFile(node.Backend);
}
else
{
SelectedObject = null;
detail.ViewRevisionFile(null);
}
}
};
source.Selection = selection;
Content = new TreeDataGrid()
{
AutoDragDropRows = false,
ShowColumnHeaders = false,
CanUserResizeColumns = false,
CanUserSortColumns = false,
Source = source,
};
GC.Collect();
}
}
private List<RevisionFileTreeNode> GetChildrenOfTreeNode(RevisionFileTreeNode node)
{
if (!node.IsFolder)
return null;
if (node.Children.Count > 0)
return node.Children;
var vm = DataContext as ViewModels.CommitDetail;
if (vm == null)
return null;
var objects = vm.GetRevisionFilesUnderFolder(node.Backend.Path + "/");
if (objects == null || objects.Count == 0)
return null;
foreach (var obj in objects)
node.Children.Add(new RevisionFileTreeNode() { Backend = obj });
node.Children.Sort((l, r) =>
{
if (l.IsFolder == r.IsFolder)
return l.Name.CompareTo(r.Name);
return l.IsFolder ? -1 : 1;
});
return node.Children;
}
}
public class RevisionImageFileView : Control
{
public static readonly StyledProperty<Bitmap> SourceProperty =
@ -59,9 +208,7 @@ namespace SourceGit.Views
var source = Source;
if (source != null)
{
context.DrawImage(source, new Rect(source.Size), new Rect(8, 8, Bounds.Width - 16, Bounds.Height - 16));
}
}
protected override void OnPropertyChanged(AvaloniaPropertyChangedEventArgs change)
@ -79,9 +226,7 @@ namespace SourceGit.Views
{
var source = Source;
if (source == null)
{
return availableSize;
}
var w = availableSize.Width - 16;
var h = availableSize.Height - 16;
@ -89,13 +234,9 @@ namespace SourceGit.Views
if (size.Width <= w)
{
if (size.Height <= h)
{
return new Size(size.Width + 16, size.Height + 16);
}
else
{
return new Size(h * size.Width / size.Height + 16, availableSize.Height);
}
}
else
{
@ -130,12 +271,6 @@ namespace SourceGit.Views
base.OnLoaded(e);
TextArea.TextView.ContextRequested += OnTextViewContextRequested;
_textMate = Models.TextMateHelper.CreateForEditor(this);
if (DataContext is Models.RevisionTextFile source)
{
Models.TextMateHelper.SetGrammarByFileName(_textMate, source.FileName);
}
}
protected override void OnUnloaded(RoutedEventArgs e)
@ -143,13 +278,6 @@ namespace SourceGit.Views
base.OnUnloaded(e);
TextArea.TextView.ContextRequested -= OnTextViewContextRequested;
if (_textMate != null)
{
_textMate.Dispose();
_textMate = null;
}
GC.Collect();
}
@ -159,20 +287,9 @@ namespace SourceGit.Views
var source = DataContext as Models.RevisionTextFile;
if (source != null)
{
Text = source.Content;
Models.TextMateHelper.SetGrammarByFileName(_textMate, source.FileName);
}
}
protected override void OnPropertyChanged(AvaloniaPropertyChangedEventArgs change)
{
base.OnPropertyChanged(change);
if (change.Property.Name == "ActualThemeVariant" && change.NewValue != null)
{
Models.TextMateHelper.SetThemeByApp(_textMate);
}
else
Text = string.Empty;
}
private void OnTextViewContextRequested(object sender, ContextRequestedEventArgs e)
@ -202,8 +319,6 @@ namespace SourceGit.Views
TextArea.TextView.OpenContextMenu(menu);
e.Handled = true;
}
private TextMate.Installation _textMate = null;
}
public partial class RevisionFiles : UserControl
@ -213,15 +328,14 @@ namespace SourceGit.Views
InitializeComponent();
}
private void OnFileContextRequested(object sender, ContextRequestedEventArgs e)
private void OnRevisionFileTreeViewContextRequested(object sender, ContextRequestedEventArgs e)
{
if (DataContext is ViewModels.CommitDetail vm && sender is TreeDataGrid tree)
if (DataContext is ViewModels.CommitDetail vm && sender is RevisionFileTreeView view)
{
var selected = tree.RowSelection.SelectedItem as Models.FileTreeNode;
if (selected != null && !selected.IsFolder && selected.Backend is Models.Object obj)
if (view.SelectedObject != null && view.SelectedObject.Type != Models.ObjectType.Tree)
{
var menu = vm.CreateRevisionFileContextMenu(obj);
tree.OpenContextMenu(menu);
var menu = vm.CreateRevisionFileContextMenu(view.SelectedObject);
view.OpenContextMenu(menu);
}
}