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refactor: use cutom RevisionFileTreeView instead of TreeDataGrid

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leo 2024-07-12 13:54:13 +08:00
parent b07aa9e63f
commit 7f228385f9
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5 changed files with 376 additions and 178 deletions
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164
src/Views/RevisionFiles.axaml.cs
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@ -1,12 +1,8 @@
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;
@ -16,152 +12,6 @@ using AvaloniaEdit.Editing;
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 || vm.Commit == 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 RevisionTextFileView : TextEditor
{
protected override Type StyleKeyOverride => typeof(TextEditor);
@ -241,19 +91,5 @@ namespace SourceGit.Views
{
InitializeComponent();
}
private void OnRevisionFileTreeViewContextRequested(object sender, ContextRequestedEventArgs e)
{
if (DataContext is ViewModels.CommitDetail vm && sender is RevisionFileTreeView view)
{
if (view.SelectedObject != null && view.SelectedObject.Type != Models.ObjectType.Tree)
{
var menu = vm.CreateRevisionFileContextMenu(view.SelectedObject);
view.OpenContextMenu(menu);
}
}
e.Handled = true;
}
}
}