src/Files.App.Controls/BladeView/BladeItem.Properties.cs - main - githubmirror/Files

src/Files.App.Controls/BladeView/BladeItem.Properties.cs
89 строк3 KB
terat
Code Quality: Resolve all nullability warnings (#18455)
05 май 2026, 05:45
05 май 2026, 05:45be7d323
// Licensed to the .NET Foundation under one or more agreements.
// The .NET Foundation licenses this file to you under the MIT license.

using Microsoft.UI;
using Microsoft.UI.Xaml.Media;

namespace Files.App.Controls
{
	/// <summary>
	/// The Blade is used as a child in the BladeView
	/// </summary>
	public partial class BladeItem
	{
		/// <summary>
		/// Identifies the <see cref="CloseButtonBackground"/> dependency property.
		/// </summary>
		public static readonly DependencyProperty CloseButtonBackgroundProperty = DependencyProperty.Register(nameof(CloseButtonBackground), typeof(Brush), typeof(BladeItem), new PropertyMetadata(default(Brush)));

		/// <summary>
		/// Identifies the <see cref="CloseButtonVisibility"/> dependency property.
		/// </summary>
		public static readonly DependencyProperty CloseButtonVisibilityProperty = DependencyProperty.Register(nameof(CloseButtonVisibility), typeof(Visibility), typeof(BladeItem), new PropertyMetadata(default(Visibility)));

		/// <summary>
		/// Identifies the <see cref="IsOpen"/> dependency property.
		/// </summary>
		public static readonly DependencyProperty IsOpenProperty = DependencyProperty.Register(nameof(IsOpen), typeof(bool), typeof(BladeItem), new PropertyMetadata(true, IsOpenChangedCallback));

		/// <summary>
		/// Identifies the <see cref="CloseButtonForeground"/> dependency property
		/// </summary>
		public static readonly DependencyProperty CloseButtonForegroundProperty = DependencyProperty.Register(nameof(CloseButtonForeground), typeof(Brush), typeof(BladeItem), new PropertyMetadata(new SolidColorBrush(Colors.Black)));

		private WeakReference<BladeView> _parentBladeView = new(null!);

		/// <summary>
		/// Gets or sets the foreground color of the close button
		/// </summary>
		public Brush CloseButtonForeground
		{
			get { return (Brush)GetValue(CloseButtonForegroundProperty); }
			set { SetValue(CloseButtonForegroundProperty, value); }
		}

		/// <summary>
		/// Gets or sets the visibility of the close button
		/// </summary>
		public Visibility CloseButtonVisibility
		{
			get { return (Visibility)GetValue(CloseButtonVisibilityProperty); }
			set { SetValue(CloseButtonVisibilityProperty, value); }
		}

		/// <summary>
		/// Gets or sets the background color of the default close button in the title bar
		/// </summary>
		public Brush CloseButtonBackground
		{
			get { return (Brush)GetValue(CloseButtonBackgroundProperty); }
			set { SetValue(CloseButtonBackgroundProperty, value); }
		}

		/// <summary>
		/// Gets or sets a value indicating whether this blade is opened
		/// </summary>
		public bool IsOpen
		{
			get { return (bool)GetValue(IsOpenProperty); }
			set { SetValue(IsOpenProperty, value); }
		}

		internal BladeView ParentBladeView
		{
			get
			{
				this._parentBladeView.TryGetTarget(out var bladeView);
				return bladeView!;
			}
			set => this._parentBladeView = new WeakReference<BladeView>(value);
		}

		private static void IsOpenChangedCallback(DependencyObject dependencyObject, DependencyPropertyChangedEventArgs dependencyPropertyChangedEventArgs)
		{
			BladeItem bladeItem = (BladeItem)dependencyObject;
			bladeItem.Visibility = bladeItem.IsOpen ? Visibility.Visible : Visibility.Collapsed;
			bladeItem.VisibilityChanged?.Invoke(bladeItem, bladeItem.Visibility);
		}
	}
}