src/Files.App/Data/Models/AppModel.cs - main - githubmirror/Files

src/Files.App/Data/Models/AppModel.cs
147 строк4 KB
Yair
Code Quality: Fix COMException in property notifications during UI teardown
19 апр 2026, 17:35
19 апр 2026, 17:35f796178
// Copyright (c) Files Community
// Licensed under the MIT License.

using Microsoft.UI.Xaml.Controls;
using System.Runtime.InteropServices;
using Windows.ApplicationModel.DataTransfer;
using Windows.Win32;
using Windows.Win32.Foundation;

namespace Files.App.Data.Models
{
	public sealed partial class AppModel : ObservableObject
	{
		public AppModel()
		{
			Clipboard.ContentChanged += Clipboard_ContentChanged;
		}

		// TODO: Refactor this method
		public void Clipboard_ContentChanged(object sender, object e)
		{
			try
			{
				DataPackageView packageView = Clipboard.GetContent();
				IsPasteEnabled = packageView.Contains(StandardDataFormats.StorageItems) || packageView.Contains(StandardDataFormats.Bitmap);
			}
			catch
			{
				IsPasteEnabled = false;
			}
		}

		private int _TabStripSelectedIndex = 0;
		public int TabStripSelectedIndex
		{
			get => _TabStripSelectedIndex;
			set
			{
				try
				{
					SetProperty(ref _TabStripSelectedIndex, value);

					if (value >= 0 && value < MainPageViewModel.AppInstances.Count)
					{
						if (MainWindow.Instance.Content is Frame rootFrame && rootFrame.Content is MainPage mainView)
							mainView.ViewModel.SelectedTabItem = MainPageViewModel.AppInstances[value];
					}
				}
				catch (COMException)
				{

				}
			}
		}

		private bool _IsAppElevated = false;
		public bool IsAppElevated
		{
			get => _IsAppElevated;
			set => SetProperty(ref _IsAppElevated, value);
		}

		private bool _IsPasteEnabled = false;
		public bool IsPasteEnabled
		{
			get => _IsPasteEnabled;
			set => SetProperty(ref _IsPasteEnabled, value);
		}

		private volatile int _IsMainWindowClosed = 0;
		public bool IsMainWindowClosed
		{
			get => _IsMainWindowClosed == 1;
			set
			{
				int orig = Interlocked.Exchange(ref _IsMainWindowClosed, value ? 1 : 0);
				if (_IsMainWindowClosed != orig)
					OnPropertyChanged();
			}
		}

		private int _PropertiesWindowCount = 0;
		public int PropertiesWindowCount
		{
			get => _PropertiesWindowCount;
		}

		public int IncrementPropertiesWindowCount()
		{
			var result = Interlocked.Increment(ref _PropertiesWindowCount);
			OnPropertyChanged(nameof(PropertiesWindowCount));
			return result;
		}

		public int DecrementPropertiesWindowCount()
		{
			var result = Interlocked.Decrement(ref _PropertiesWindowCount);
			OnPropertyChanged(nameof(PropertiesWindowCount));
			return result;
		}

		private bool _ForceProcessTermination = false;
		public bool ForceProcessTermination
		{
			get => _ForceProcessTermination;
			set => SetProperty(ref _ForceProcessTermination, value);
		}

		private string _GoogleDrivePath = string.Empty;
		/// <summary>
		/// Gets or sets a value indicating the path for Google Drive.
		/// </summary>
		public string GoogleDrivePath
		{
			get => _GoogleDrivePath;
			set => SetProperty(ref _GoogleDrivePath, value);
		}

		private string _PCloudDrivePath = string.Empty;
		/// <summary>
		/// Gets or sets a value indicating the path for pCloud Drive.
		/// </summary>
		public string PCloudDrivePath
		{
			get => _PCloudDrivePath;
			set => SetProperty(ref _PCloudDrivePath, value);
		}

		/// <summary>
		/// Gets or sets a value indicating the AppWindow DPI.
		/// </summary>
		private float? _AppWindowDPI = null;
		public float AppWindowDPI
		{
			get
			{
				if (_AppWindowDPI is null || _AppWindowDPI == 0f)
				{
					var dpi = PInvoke.GetDpiForWindow((HWND)MainWindow.Instance.WindowHandle);
					_AppWindowDPI = dpi > 0 ? dpi / 96f : 1.0f; // Fallback to 1.0f if invalid DPI
				}
				return _AppWindowDPI.Value;
			}
			set => SetProperty(ref _AppWindowDPI, value);
		}
	}
}