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using Avalonia;
using Avalonia.Controls;
using Avalonia.Input;
using Avalonia.Threading;
using Ryujinx.Ava.Input;
using Ryujinx.Ava.UI.Helpers;
using Ryujinx.Ava.UI.Windows;
using Ryujinx.HLE.Ui;
using System;
using System.Threading;
using HidKey = Ryujinx.Common.Configuration.Hid.Key;
namespace Ryujinx.Ava.UI.Applet
{
class AvaloniaDynamicTextInputHandler : IDynamicTextInputHandler
{
private MainWindow _parent;
private readonly OffscreenTextBox _hiddenTextBox;
private bool _canProcessInput;
private IDisposable _textChangedSubscription;
private IDisposable _selectionStartChangedSubscription;
private IDisposable _selectionEndtextChangedSubscription;
public AvaloniaDynamicTextInputHandler(MainWindow parent)
{
_parent = parent;
(_parent.InputManager.KeyboardDriver as AvaloniaKeyboardDriver).KeyPressed += AvaloniaDynamicTextInputHandler_KeyPressed;
(_parent.InputManager.KeyboardDriver as AvaloniaKeyboardDriver).KeyRelease += AvaloniaDynamicTextInputHandler_KeyRelease;
(_parent.InputManager.KeyboardDriver as AvaloniaKeyboardDriver).TextInput += AvaloniaDynamicTextInputHandler_TextInput;
_hiddenTextBox = _parent.HiddenTextBox;
Dispatcher.UIThread.Post(() =>
{
_textChangedSubscription = _hiddenTextBox.GetObservable(TextBox.TextProperty).Subscribe(TextChanged);
_selectionStartChangedSubscription = _hiddenTextBox.GetObservable(TextBox.SelectionStartProperty).Subscribe(SelectionChanged);
_selectionEndtextChangedSubscription = _hiddenTextBox.GetObservable(TextBox.SelectionEndProperty).Subscribe(SelectionChanged);
});
}
private void TextChanged(string text)
{
TextChangedEvent?.Invoke(text ?? string.Empty, _hiddenTextBox.SelectionStart, _hiddenTextBox.SelectionEnd, true);
}
private void SelectionChanged(int selection)
{
if (_hiddenTextBox.SelectionEnd < _hiddenTextBox.SelectionStart)
{
_hiddenTextBox.SelectionStart = _hiddenTextBox.SelectionEnd;
}
TextChangedEvent?.Invoke(_hiddenTextBox.Text ?? string.Empty, _hiddenTextBox.SelectionStart, _hiddenTextBox.SelectionEnd, true);
}
private void AvaloniaDynamicTextInputHandler_TextInput(object sender, string text)
{
Dispatcher.UIThread.InvokeAsync(() =>
{
if (_canProcessInput)
{
_hiddenTextBox.SendText(text);
}
});
}
private void AvaloniaDynamicTextInputHandler_KeyRelease(object sender, KeyEventArgs e)
{
var key = (HidKey)AvaloniaKeyboardMappingHelper.ToInputKey(e.Key);
if (!(KeyReleasedEvent?.Invoke(key)).GetValueOrDefault(true))
{
return;
}
e.RoutedEvent = OffscreenTextBox.GetKeyUpRoutedEvent();
Dispatcher.UIThread.InvokeAsync(() =>
{
if (_canProcessInput)
{
_hiddenTextBox.SendKeyUpEvent(e);
}
});
}
private void AvaloniaDynamicTextInputHandler_KeyPressed(object sender, KeyEventArgs e)
{
var key = (HidKey)AvaloniaKeyboardMappingHelper.ToInputKey(e.Key);
if (!(KeyPressedEvent?.Invoke(key)).GetValueOrDefault(true))
{
return;
}
e.RoutedEvent = OffscreenTextBox.GetKeyUpRoutedEvent();
Dispatcher.UIThread.InvokeAsync(() =>
{
if (_canProcessInput)
{
_hiddenTextBox.SendKeyDownEvent(e);
}
});
}
public bool TextProcessingEnabled
{
get
{
return Volatile.Read(ref _canProcessInput);
}
set
{
Volatile.Write(ref _canProcessInput, value);
}
}
public event DynamicTextChangedHandler TextChangedEvent;
public event KeyPressedHandler KeyPressedEvent;
public event KeyReleasedHandler KeyReleasedEvent;
public void Dispose()
{
(_parent.InputManager.KeyboardDriver as AvaloniaKeyboardDriver).KeyPressed -= AvaloniaDynamicTextInputHandler_KeyPressed;
(_parent.InputManager.KeyboardDriver as AvaloniaKeyboardDriver).KeyRelease -= AvaloniaDynamicTextInputHandler_KeyRelease;
(_parent.InputManager.KeyboardDriver as AvaloniaKeyboardDriver).TextInput -= AvaloniaDynamicTextInputHandler_TextInput;
_textChangedSubscription?.Dispose();
_selectionStartChangedSubscription?.Dispose();
_selectionEndtextChangedSubscription?.Dispose();
Dispatcher.UIThread.Post(() =>
{
_hiddenTextBox.Clear();
_parent.ViewModel.RendererHostControl.Focus();
_parent = null;
});
}
public void SetText(string text, int cursorBegin)
{
Dispatcher.UIThread.Post(() =>
{
_hiddenTextBox.Text = text;
_hiddenTextBox.CaretIndex = cursorBegin;
});
}
public void SetText(string text, int cursorBegin, int cursorEnd)
{
Dispatcher.UIThread.Post(() =>
{
_hiddenTextBox.Text = text;
_hiddenTextBox.SelectionStart = cursorBegin;
_hiddenTextBox.SelectionEnd = cursorEnd;
});
}
}
}
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