src/Files.App.Controls/Sidebar/SidebarItemAutomationPeer.cs - main - githubmirror/Files

src/Files.App.Controls/Sidebar/SidebarItemAutomationPeer.cs
123 строки3 KB
yair100
Feature: Replaced Settings Dialog with page (#18410)
23 апр 2026, 23:59
23 апр 2026, 23:5965e4bf8
// Copyright (c) Files Community
// Licensed under the MIT License.

using CommunityToolkit.WinUI;
using Microsoft.UI.Input;
using Microsoft.UI.Xaml.Automation;
using Microsoft.UI.Xaml.Automation.Peers;
using Microsoft.UI.Xaml.Automation.Provider;

namespace Files.App.Controls
{
	/// <summary>
	/// Exposes <see cref="SidebarItem"/> types to Microsoft UI Automation.
	/// </summary>
	public sealed partial class SidebarItemAutomationPeer : FrameworkElementAutomationPeer, IInvokeProvider, IExpandCollapseProvider, ISelectionItemProvider
	{
		public ExpandCollapseState ExpandCollapseState
		{
			get
			{
				if (Owner.HasChildren)
					return Owner.IsExpanded ? ExpandCollapseState.Expanded : ExpandCollapseState.Collapsed;

				return ExpandCollapseState.LeafNode;
			}
		}
		public bool IsSelected => Owner.IsSelected;
		public IRawElementProviderSimple SelectionContainer => ProviderFromPeer(CreatePeerForElement(Owner.Owner));

		private new SidebarItem Owner { get; init; }

		public SidebarItemAutomationPeer(SidebarItem owner) : base(owner)
		{
			Owner = owner;
		}

		protected override AutomationControlType GetAutomationControlTypeCore()
		{
			return AutomationControlType.ListItem;
		}

		protected override string GetNameCore()
		{
			return Owner?.Text ?? string.Empty;
		}

		protected override object GetPatternCore(PatternInterface patternInterface)
		{
			if (patternInterface == PatternInterface.Invoke || patternInterface == PatternInterface.SelectionItem)
			{
				return this;
			}
			else if (patternInterface == PatternInterface.ExpandCollapse)
			{
				if (Owner.CollapseEnabled)
					return this;
			}

			return base.GetPatternCore(patternInterface);
		}

		public void Collapse()
		{
			if (Owner.CollapseEnabled)
				Owner.IsExpanded = false;
		}

		public void Expand()
		{
			if (Owner.CollapseEnabled)
				Owner.IsExpanded = true;
		}

		public void Invoke()
		{
			Owner.RaiseItemInvoked(PointerUpdateKind.Other);
		}

		public void AddToSelection()
		{
			Owner.Select();
		}

		public void RemoveFromSelection()
		{
			// Intentionally left blank
		}

		public void Select()
		{
			Owner.Select();
		}

		protected override int GetSizeOfSetCore()
		{
			var baseValue = base.GetSizeOfSetCore();
			if (baseValue != -1)
				return baseValue;

			return GetOwnerCollection().Count;
		}

		protected override int GetPositionInSetCore()
		{
			var baseValue = base.GetPositionInSetCore();
			if (baseValue != -1)
				return baseValue;

			return GetOwnerCollection().IndexOf(Owner.DataContext) + 1;
		}

		private IList GetOwnerCollection()
		{
			if (Owner.FindAscendant<SidebarItem>() is SidebarItem parent && parent.Item?.Children is IList list)
				return list;

			if (Owner?.Owner is not null && Owner.Owner?.MenuItemsSource is IList items)
				return items;

			return new List<object>();
		}
	}
}