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Fix freezing with gpu #3384

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52 changes: 52 additions & 0 deletions Flow.Launcher.Infrastructure/Win32Helper.cs
Original file line number Diff line number Diff line change
@@ -1,4 +1,5 @@
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Globalization;
using System.Runtime.InteropServices;
Expand Down Expand Up @@ -517,5 +518,56 @@ public static bool IsNotificationSupported()
}

#endregion

#region Window Freeze

public static Dictionary<UIElement, CacheMode> ClearAllCacheModes(DependencyObject parent)
{
Dictionary<UIElement, CacheMode> cacheModes = new();

foreach (var element in FindVisualChildren<UIElement>(parent))
{
if (element.CacheMode is null) continue;

System.Diagnostics.Debug.WriteLine($"CacheMode Changed: {GetElementName(element)}{element.CacheMode.GetType().Name}");

// Store the previous CacheMode value
cacheModes[element] = element.CacheMode.Clone();

// Set the CacheMode to null
element.CacheMode = null;
}

return cacheModes;
}

private static string GetElementName(UIElement element)
{
if (element is FrameworkElement fe && !string.IsNullOrEmpty(fe.Name)) return fe.Name;
return element.GetType().Name;
}

private static IEnumerable<T> FindVisualChildren<T>(DependencyObject parent) where T : DependencyObject
{
if (parent != null)
{
for (int i = 0; i < VisualTreeHelper.GetChildrenCount(parent); i++)
{
var child = VisualTreeHelper.GetChild(parent, i);

if (child is T t)
{
yield return t;
}

foreach (var childOfChild in FindVisualChildren<T>(child))
{
yield return childOfChild;
}
}
}
}

#endregion
}
}
2 changes: 1 addition & 1 deletion Flow.Launcher/MainWindow.xaml.cs
Original file line number Diff line number Diff line change
Expand Up @@ -105,7 +105,7 @@ private void OnSourceInitialized(object sender, EventArgs e)
Win32Helper.HideFromAltTab(this);
Win32Helper.DisableControlBox(this);
}

private async void OnLoaded(object sender, RoutedEventArgs _)
{
// Check first launch
Expand Down
8 changes: 4 additions & 4 deletions Flow.Launcher/SettingWindow.xaml.cs
Original file line number Diff line number Diff line change
Expand Up @@ -2,7 +2,6 @@
using System.Windows;
using System.Windows.Forms;
using System.Windows.Input;
using System.Windows.Interop;
using CommunityToolkit.Mvvm.DependencyInjection;
using Flow.Launcher.Infrastructure;
using Flow.Launcher.Infrastructure.UserSettings;
Expand Down Expand Up @@ -34,11 +33,12 @@ public SettingWindow()
private void OnLoaded(object sender, RoutedEventArgs e)
{
RefreshMaximizeRestoreButton();

// Fix (workaround) for the window freezes after lock screen (Win+L) or sleep
// https://stackoverflow.com/questions/4951058/software-rendering-mode-wpf
HwndSource hwndSource = PresentationSource.FromVisual(this) as HwndSource;
HwndTarget hwndTarget = hwndSource.CompositionTarget;
hwndTarget.RenderMode = RenderMode.SoftwareOnly; // Must use software only render mode here
//HwndSource hwndSource = PresentationSource.FromVisual(this) as HwndSource;
//HwndTarget hwndTarget = hwndSource.CompositionTarget;
//hwndTarget.RenderMode = RenderMode.SoftwareOnly; // Must use software only render mode here

InitializePosition();
}
Expand Down
2 changes: 1 addition & 1 deletion Flow.Launcher/ViewModel/MainViewModel.cs
Original file line number Diff line number Diff line change
Expand Up @@ -1520,7 +1520,7 @@ public void Show()
Win32Helper.SwitchToEnglishKeyboardLayout(true);
}
}

public async void Hide()
{
lastHistoryIndex = 1;
Expand Down
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