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using Avalonia.Controls;
using Avalonia.Controls.Primitives;
using Avalonia.LogicalTree;
using Avalonia.Threading;
using Ryujinx.Input;
using Ryujinx.Input.Assigner;
using System;
using System.Linq;
using System.Threading.Tasks;
namespace Ryujinx.Ava.UI.Helpers
{
internal class ButtonKeyAssigner
{
internal class ButtonAssignedEventArgs : EventArgs
{
public ToggleButton Button { get; }
public bool IsAssigned { get; }
public ButtonAssignedEventArgs(ToggleButton button, bool isAssigned)
{
Button = button;
IsAssigned = isAssigned;
}
}
public ToggleButton ToggledButton { get; set; }
private bool _isWaitingForInput;
private bool _shouldUnbind;
public event EventHandler<ButtonAssignedEventArgs> ButtonAssigned;
public ButtonKeyAssigner(ToggleButton toggleButton)
{
ToggledButton = toggleButton;
}
public async void GetInputAndAssign(IButtonAssigner assigner, IKeyboard keyboard = null)
{
Dispatcher.UIThread.Post(() =>
{
ToggledButton.IsChecked = true;
});
if (_isWaitingForInput)
{
Dispatcher.UIThread.Post(() =>
{
Cancel();
});
return;
}
_isWaitingForInput = true;
assigner.Initialize();
await Task.Run(async () =>
{
while (true)
{
if (!_isWaitingForInput)
{
return;
}
await Task.Delay(10);
assigner.ReadInput();
if (assigner.HasAnyButtonPressed() || assigner.ShouldCancel() || (keyboard != null && keyboard.IsPressed(Key.Escape)))
{
break;
}
}
});
await Dispatcher.UIThread.InvokeAsync(() =>
{
string pressedButton = assigner.GetPressedButton();
if (_shouldUnbind)
{
SetButtonText(ToggledButton, "Unbound");
}
else if (pressedButton != "")
{
SetButtonText(ToggledButton, pressedButton);
}
_shouldUnbind = false;
_isWaitingForInput = false;
ToggledButton.IsChecked = false;
ButtonAssigned?.Invoke(this, new ButtonAssignedEventArgs(ToggledButton, pressedButton != null));
static void SetButtonText(ToggleButton button, string text)
{
ILogical textBlock = button.GetLogicalDescendants().First(x => x is TextBlock);
if (textBlock != null && textBlock is TextBlock block)
{
block.Text = text;
}
}
});
}
public void Cancel(bool shouldUnbind = false)
{
_isWaitingForInput = false;
ToggledButton.IsChecked = false;
_shouldUnbind = shouldUnbind;
}
}
}
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