src/modules/registrypreview/RegistryPreview/MainWindow.Events.cs - main - githubmirror/PowerToys

src/modules/registrypreview/RegistryPreview/MainWindow.Events.cs

53 строки2 KB

Clint Rutkas

[Peek] Stop fail-fast in AppWindow.Closing path; reset cached preview-handler factories on release (#48564)

23 июн 2026, 16:32

23 июн 2026, 16:32968a7ac

// Copyright (c) Microsoft Corporation
// The Microsoft Corporation licenses this file to you under the MIT license.
// See the LICENSE file in the project root for more information.

using System;

using Microsoft.UI.Xaml;
using Windows.Data.Json;
using WinUIEx;

namespace RegistryPreview
{
    public sealed partial class MainWindow : WindowEx
    {
        /// <summary>
        /// Event handler to grab the main window's size and position before it closes
        /// </summary>
        private void AppWindow_Closing(Microsoft.UI.Windowing.AppWindow sender, Microsoft.UI.Windowing.AppWindowClosingEventArgs args)
        {
            // Any exception that escapes a WinRT event handler is projected back to
            // the CsWinRT dispatcher as a failed HRESULT, and CFlat fail-fasts the
            // process. Defend the handler so a transient teardown failure (e.g.,
            // null placement state, separated RCW during shutdown) can't terminate
            // the editor unexpectedly.
            try
            {
                if (jsonWindowPlacement == null)
                {
                    return;
                }

                jsonWindowPlacement.SetNamedValue("appWindow.Position.X", JsonValue.CreateNumberValue(AppWindow.Position.X));
                jsonWindowPlacement.SetNamedValue("appWindow.Position.Y", JsonValue.CreateNumberValue(AppWindow.Position.Y));
                jsonWindowPlacement.SetNamedValue("appWindow.Size.Width", JsonValue.CreateNumberValue(AppWindow.Size.Width));
                jsonWindowPlacement.SetNamedValue("appWindow.Size.Height", JsonValue.CreateNumberValue(AppWindow.Size.Height));
            }
            catch (Exception ex)
            {
                ManagedCommon.Logger.LogError("Unhandled exception in RegistryPreview MainWindow.AppWindow_Closing; suppressing to avoid fail-fast.", ex);
            }
        }

        /// <summary>
        /// Event that is will prevent the app from closing if the "save file" flag is active
        /// </summary>
        public void Window_Closed(object sender, WindowEventArgs args)
        {
            // Save window placement
            SaveWindowPlacementFile(settingsFolder, windowPlacementFile);
            (Application.Current as App).EtwTrace?.Dispose();
        }
    }
}